5791 5795.output

* GB786199 (A)

Description: GB786199 (A) ? 1957-11-13

Improvements in or relating to information storage devices and materialshandling apparatus including same

Description of GB786199 (A)

COMPLETE SPECIFICATION. Improvements in or relating to Iniormation Storage Devices and Materials Handling Apparatus including sarge. We, THE GENERAL ELECTRIC COMPANY LIMITED, of Magnet House, Kingsway, London, W.C.2, a British Company, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement : This invention relates to information storage devices for storing information apertaining to differing operations a selected one of which is to be performed upon each of a number of articles or discrete quantities of material presented in succession to means for performing the operations, and to materials handling apparatus including such devices. Materials handling apparatus may be required to deal with differing types and quantities of materials, differing operations of the apparatus being required for each type or quantity of material. Thus, for example, differing loads of coal may be charged into a conveyor belt as it passes a charging point and these loads may require to be discharged into different chutes according to the type or quantity of coal in each load. This discharging may be controlled by an operator stationed at or near the discharging point who identifies the type or quantity in each load as it reaches the discharging point. In general, however, it is necessary that the charging point where there may, for example, be a wagon tippler should be under the control of an operator and since this operator may need to identify the coals in any case it is wasteful of manpower for an operator to be stationed at the discharge point merely to identify the type or quantity of coals as

they arrive at this point. By providing an information storage device' arranged to receive signals regarding the order of the types or quantities of coal on the belt passed to the device by the operator at the charging point of the conveyor belt the presence of an additional operator to identify the coals at the discharge point of the belt is rendered unnecessary. Signals regarding the type or quantity of a load of coal, and thus the operation required of the apparatus, on the belt can then be passed to automatic operating mechanism at the discharge point when the load nears this point. It is one object of the present invention to provide an information storage device for use in conjunction with a materials handling apparatus to control the manner in which differing types or quantities of materials may be discharged, for example, from the apparatus. It is another object of the present invention to provide a materials handling apparatus including such an information storage device. According to the present invention, an information storage device for storing information appertaining to differing operations a selected one of which is to be performed upon each of a number of articles or discrete quantities of material presented in succession to means for performing the operations comprises storage means arranged to contain a plurality of differing tokens each having a characteristic corresponding to one particular operation, means for selecting from the storage means in respect of each article or discrete quantity of material, and in dependence upon the particular operation to be performed thereon, a token having the corresponding characteristics, means for delivering the tokens in their selected order to an identifying device, and means responsive to the identifying device for controlling said means for performing the operations whereby the operations are performed on successive articles or discrete quantities of material in the order in which the corresponding tokens are selected. Storage chambers may be provided for similar tokens, and the selecting means may be arranged to select a token from any one of the chambers and allow or cause the token to pass to the identifying device. Different tokens may be arranged to be passed from the identifying device into appropriate compartments, and a pair of electrical contacts may be disposed in or adjacent each compartment so as to be operated by the passage of a token into the compartment. Means may be provided to return to their respective storage compartments tokens which have passed through the identifying means. The tokens may be fed from their storage chambers to the identifying device by gravity. The tokens may be balls whose diameter or weight indicates the

particular operation they represent. The tokens may be rollers whose diameter, length or weight indicates the particular operation they represent The identifying device may be arranged to gauge the size or weight of a ball or roller fed to it. A materials handling apparatus in which discrete quantities of materials or containers for materials are required to be selectively charged, discharged, sorted or otherwise treated in order may include an information storage device as described. One construction of information storage device, according to the present invention, arranged to control the discharge of material from the conveyor belt of a materials handling apparatus will now be described by way of example with reference to the accompanying diagrammatic drawing of the apparatus. Referring now to the drawing, material of three distinct types is arranged to be charged onto a conveyor belt 1 by a wagon unloading tippler 2 under the control of an operator, each type of material being required to be discharged from the discharge point of a conveyor belt 3 into an appropriate one of three discharge chutes 4, 5 and 6 each arranged to be closed by a flap valve. No operator is provided at the discharge end of the conveyor belt 3 and the types of material are likely to be charged onto the conveyor belt 1 in irregular order according to the order in which wagons are received at the unloading tippler 2. In order that the loads of material should be discharged into the correct chute 4, 5 or 6 the flap valves closing these chutes are under the control of an information storage device, and the order in which the flap valves are operated depends on the information regarding the order in which the types of material are charged onto the conveyor belt 1 given by the operator of the wagon unloading tippler to the storage device. The information storage device utilises balls 8 of three sizes to differentiate between the three types of information to be stored, and stocks of each size of ball are accommodated in three storage chambers 9, 10 and 11. At the commencement of unloading of each wagon by the tippler 2 the operator depresses a push button 12, 13 or 14 corresponding to the type of material to be unloaded, and this causes a feed wheel 15, 16 or 17 associated with the storage chamber 9, 10 or 11 of the balls corresponding to that type of material, and thus to one of the flap valves, of the chutes 4, 5 or 6, to rotate sufficiently to release a ball from the appropriate storage chamber. The selected ball runs under gravity until it reaches an identifier feed wheel 19 or an earlier ball stopped by this wheel, and here the ball remains until required. The push button 12, 13 or 14 is also linked to the control

gear 20 for the tippler 2 and on depression of the button the wagon is unloaded. Further loads of different materials may be charged onto the belt l, a ball of appropriate size being moved into the receiving tube 18 at each wagon unloading operation, and the order of balls in the tube 18 thus represents the order of the loads on the belts 1 and 3. In order to prevent mixing of the loads a gap timer 21 may be connected to the tippler control gear 20, this gap timer including flap switches 22 and 23 arranged to prevent further action of the tippler 2 after an unloading until the load has travelled a predetermined distance away from the charging point. Further flap switches 24 and 25 are disposed near to the discharge point of the conveyor belt 1 and, on actuation by the arrival of the first load of material on the conveyor belt, these switches are arranged to cause the identifier feed wheel 19 to feed the first ball 8 in order in the receiving tube 18 to the identifying device. The identifying device consists of an inclined gauging ramp 26 having a tapered slot along which the ball rides until the slot width corresponds to the ball diameter. The ball then drops into a compartment 27, 28 or 29 for this size of ball and, in so doing, closes a pair of contacts only one of which is shown at 30, 31 and 32 which send a signal to the operating gear 33 of the flap valve of the appropriate chute 4, 5 or 6. In some applications a flap valve for the last chute is not necessary. Thus in the drawing no flap valve for the chute 6 is shown, material being delivered to this chute when, and only when, the flap valves for the chutes 4 and 5 are closed. The Rap valve opens and the first load of material is discharged down the appropriate chute 4, 5 or 6 for that type of material. As each successive load reaches the flap switches 24 and 25 adjacent the discharge point, the corresponding ball is fed to the identifying device and the appropriate flap valve is opened and the load is discharged down the appropriate chute 4, 5 or 6. Balls which have passed through the compartments of the identifying device are carried up by an elevator mechanism 34 to a sizing device 35 consisting of an inclined ramp with a gauging slot and then pass to the appropriate one of the three storage chambers 9, 10 or 11. It will be appreciated that the information storage device may also be used to control the loading of a conveyor belt or the like with c,,,,Iifferent quantities or types of material in a regular order for use, for example, in the direct charging of blast furnaces. Such a device would be of great advantage for processes using a blend or mixture of raw materials derived from separate storage bins or hoppers. It could be used to control the feeding devices beneath these

bins and would be arranged so that a unit quantity of each material would be represented by one ball cf appropriate size for each type. Any blend or mixture would be obtained by altering the number and size order of the balls fed to the receiving tube. The information storage device is not restricted to use with belt conveyors. Thus it may be used where railway trucks or other containers assembled in irregular order at one point are required to be sorted at some other point. What we claim is:- I. An information storage device for storing information appertaining to differing operations a selected one of which is to be performed upon each of a number of articles or discrete quantities of material presented in succession to means for performing the operations, comprising storage means arranged to contain a plurality of differing tokens each having a characteristic corresponding to one particular operation, means for selecting from the storage means in respect of each article or discrete quantity of material and in dependence upon the particular operation to be performed thereon a token having the corresponding characteristic, means for delivering the tokens in their selected order to an identifying device, and means responsive to the identifying device for controlling said means for performing the operations whereby tile operations are perfonned on successive articles or discrete quantities of material in the order in which the corresponding tokens are selected. 2. An information storage device as claimed in Claim 1, wherein the storage means comprise a number of storage chambers for similar tokens, and the selecting means are arranged to select a token from any one of the chambers and allow or cause the token to pass to the identifying device. 3. An information storage device as claimed in Claim 1 or Claim 2, wherein tokens are arranged to be passed from the identifying device into appropriate compartments. 4. An information storage device as claimed in Claim 3, wherein a pair of electrical contacts are disposed in or adjacent each compartment so as to be operated by the passage of a token into the compartment. 5. An information storage device as claimed in Claim 2, wherein means are arranged to return to their respective storage chambers tokens which have passed through the identifying device. 6. An information storage device as claimed in Claim 2, wherein tokens are fed from their storage chambers to the identifying device by gravity. 7. An information storage device as claimed in any preceding claim, wherein the tokens are balls whose diameter or weight indicates the particular operation they represent.

8. An information storage device as claimed in any preceding claim, wherein the tokens are rollers whose diameter, length or weight indicates the particular operation they represent. 9. An information storage device as claimed in Claim 7 or Claim 8, wherein the identifying device is arranged to gauge the size or weight of a ball or roller fed to it. 10. An information storage device substantially as hereinbefore described with reference to the accompanying drawing. 11. A materials handling apparatus in which discrete quantities of materials or containers for materials are required to be select tively charged, discharged, sorted or other wise treated in order, including an information storage device substantially as hereinbefore described.

* GB786200 (A)

Description: GB786200 (A) ? 1957-11-13

Pure kaffir beer yeast and process for producing the same

Description of GB786200 (A) Translate this text into Tooltip

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The EPO does not accept any responsibility for the accuracy of data and information originating from other authorities than the EPO; in particular, the EPO does not guarantee that they are complete, up-to-date or fit for specific purposes.

PATENT SPECIFICATION Date of Application and filing Complete Specification: Oct 12, 1954. Application made in South Africa on Oct 12, 1953. Complete Specification Published: Nov 13, 1957. Index at acceptance:-Class 14 ( 2), L. International Classification:-C 12 c. COMPLETE SPECIFICATION EPRATA SPECIFICATION NO 78 e,200 Page 3, l Ine 5, after nisolating" insert "individual".

Page 3, line 26, after "yeastn insert Orace". THE PATENT OFFICE, rd,'arch, 1958 )t-' t U 'i'ig:rle saine. Th- methods hitherto employed for the brewing of kaffir beer on a large scale have been of an unscientific nature and the -svtcms used have been based almost entirely on the methods used iin the native kraals The b)rewiing processes employed in these breweries were many and varied lanti <f a rule of thumb nature and were often without any apparent logic l)indlx. followinu, recipes handed dos-n from generationi to generation This applicati Oe' of small scale native kraal b)rewvingr methods TO large scale brewing resulted in tlhe u Droduction of kaffir beer which is not of a high standard and with very colnsi lera C ile variations in quality These primntive mnethods of large se,%le brewiiin Jzro 3-i el klaffir beers of unpalatable flavour They were quick souring nften givin rise to harmful acidity due to the prorluction of acetic and butyric acids. 3;w Wi Th the kaffr corn malt as hitherto emplove on the one hand diastase was intrroduc f tor the saceharification of starchy material and on the other hand the mos T various races of yeast to promote alcolholic fermentation This mix;ture of -eas S rendered the conditions of fermentation uncontrollable so that a uniform quality of kaffir beer could not be prodlneed and the brew was often unpalatable 4 i an I 1 o)ntaiiredl noxious concentrations of lPrice 3 '61 DB 03509/1 ( 8)13650 150 2/58 R requisite amiounis of -easts The add;tional ust 5 for malt adversely affected the ecormoay of lthe brewingut operation 60 Xtteimipts r-o supplement this yeast ded(@l cie h an addition of, brewer's yeast or baker's yeasi failed because although these -eas TS set up vigorous fermentation. the kaffir beer obtained did not foam and 65 was unpalatable, so that the kaffir beer thus produced was generally disliked and even refused by the natives. In accordance with the present invenition these difficulties were overcome by the 70 production and use of an entirely new type Of pure mono-racial kaffir beer yeast free ot wild yeasts. This r av e helongs to the genus "Sacehlaomyees' and is eharacterised 75 inter idia 'z not forming spores readily. In fact, in sunite of many attempts, I have not succeeded in producinz spores -with this race. For the production of this pure kaffir 80 beer yeasr free of wild yeasts, the yeast is selectively cultivated from kaffir beer wort a-ar b)y cultivation thereon of yeasts from kaffir beer production and constant repeated selection from the product of 85 those races givin the strongest fermentation under kaffir beer brewing conditions and repeatinz this process with the selected races until a pure

mono-racial kaffir heer yeast free from other yeasts is go 786,200 No 29405154. slxPATENT SPECIFICATION Date of Application and filing Complete Specification: Oct 12, 1954. Application made in South Africa on Oct 12, 1953. Complete Specification Published: Nov 13, 1957. Index at acceptance:-Class 14 ( 2), L International Classification:-C 12 c. 7869200 No 29405/54. COMPLETE SPECIFICATION Pure Kaffir Beer Yeast and Process for Producing the Same 1, RICHARD MAX HEINRICH, a Citizen of the Union of South Africa, of 99 Rustenburg Road, Emmarentia, Johannesburg, Province of Transvaal, Union of South Africa, do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement:The present invention relates to a novel pure kaffir beer yeast and to a process for producing the same. The methods hitherto employed for the brewing of kaffir beer on a large scale have been of an unscientific nature and the systems used have been based almost entirely on the methods used in the native kraals The brewing processes employed in these breweries were many and varied and of a rule of thumb nature, and were often without any apparent logic, blindly following recipes handed down from generation to generation This application of small scale native kraal brewing methods to laroe scale brewing resulted in the production of kaffir beer which is not of a sigh standard and with very considerable variations in quality These primitive methods of large seale brewing produeed kaffir beers of unpalatable flavour They were quick souring, often giving rise to harmful acidity due to the production of acetic and butyric acids. With the kaffir corn malt as hitherto employe on the one hand diastase was introducie for the saceharification of starchy material and on the other hand the mnost various races of yeast to promote alcoholic fermentation This mixture of yeasts rendered the conditions of fermentation uncontrollable so that a uniform quality of kaffir beer could not be produced, and the brew was often unpalatable and contained noxious concentrations of lPrice 3/6 l undesirable constituents. It had been felt that these difficulties might be due to the unhygienic conditions prevailing in the primitive methods for the production of kaffir corn malt even in,50 large scale brewing It was, however, found that more hygienic methods of malting kaffir corn resulted in improvements as regards diastase content but that the

production of yeasts was not favoured and 55 that increased amounts of kaffir corn malt were required in order to supply the requisite amounts of yeasts The additional costs for malt adversely affected the economy of the brewing operation 60 Attempts to supplement this yeast deficiency by an addition of, brewer's yeast or baker's yeast failed because, although these veasts set up vigorous fermentation, the kaffir beer obtained did not foam and 65 was unpalatable, so that the kaffir beer thus produced was generally disliked and even refused by the natives. In accordance with the present invention, these difficulties were overcome by the 70 production and use of an entirely new type of pure mono-racial kaffir beer yeast free of wild yeasts. This race belongs to the genus "Saceharomyces" and is characterised, 75 inter alia, by not forming spores readily. In fact, in spite of many attempts, I have not succeeded in producing spores with this race. For the production of this pure kaffir 80 beer yeast free of wild yeasts, the yeast is selectively cultivated from kamar beer wort agar by cultivation thereon of veasts from kaffir beer production and constant repeated selection from the product of 85 those races giving the strongest fermentation under kaffir beer brewing conditions and repeating this process with the selected races until a pure mono-racial kaffir beer yeast free from other yeasts is 90 786,200 obtained. Kaffir corn wort is the filtrate prepared by boiling kaffir corn malt with water and filtering. This process was, for example, effected b}y preparing layers of yeast nutrient agar with kaflir beer wort e g, of 9 to 14 per cent strength, say about 12 per cent strength and yeast water and growing the selected yeasts thereon under conditions favouring their growth to produce colonies. Yeast wvater is a material containing nutriment in a form readily assimilated by most micro-organisms It may be prepared by boiling compressed yeast in water, e g, g of the former in 1 litre of the latter and pouring the solution into a cylinder to cool and deposit the yeast The clear liquid may be decanted and filtered through filter paper The expression "per cent strength" when employed herein, denotes the content in grams of soluble carbohydrates per 100 cubic centimetres of kaffir corn wort. The expression "kaffir corn" when used herein refers to Sorghuam vulgare. The yeast water employed is advantageously prepared bly a process comprising heating a kaffir corn yeast suspension in an autoclave, filtering, adjusting p H and sterilising When mono-racial kaffir beer

yeast in accordance with the present invention becomes available, this is the yeast preferably taken for the production of yeast water. Individual selected cells from the apparently most virile colony were transplanted on to fresh sterile agar plates and the operation repeated until a pure kaffir beer mono-racial yeast free from other yeasts was obtained. In order to ensure that pure mono-racial yeasts are obtained, it is advisable finally or at a late stage to use the drop culture method by preparing dilute liquid dispersions and isolating individual cells in drops taken therefrom and cheeks under the microscope and further check according to virility in fermentation, so as finally to cultivate from an individual cell selected because of its capacity for optimal zymase production under kaffir beer brewing conditions the pure yeast. The selected pure yeast race is then propagated further under production conditions, great care being taken to exclude infections by wild strains of yeast and noxious bacteria Molasses are preferably employed as the main nutrient together with other substances for the maintenance of the fermentive power of the yeast Such other substances are e g, yeast water from the same strain of yeast and, if desired or required, ammonia, diammonium phosphate or superphosphate. The employment of molasses is of particular importance, also from the economic angle. In accordance with the present inv- -n 70 tion, the producetioni of accliiuatised strains of the aforesaid yeasts has also been attained for extreme conditions of kaffir beer production. Thus by gradually raising the tempera 75 tures employed in the propagation of successive aenerations of the pure yjeast, strains are obtained w-hicll are hiihllv efficient at fermentation temperatures of 279 to 3 'ZC, with all optimum Termentiveg 8 action at around 350 C These acelimatised yeasts can in fact be cultivated so as still to show good fermentiye activity at 53 C. Again, by propagating suceessive generations of pure strains in acid media, 85 pure yeasts are produced that have ood fermentive activity in a raniwe dowii to p H:3 7, and at all operational p H of about 3.9 This is of vital importance for the production of kaffir beer in which the 90 lactic acid content plays such an important part in the flavour and wholesonmeness of the beer. The yeasts in accordance with the present invention ian lbe prepared in a 95 dried and/or compressed form for delivery to kaffir beer breweries. A process and apparatus for b)rew-ing kaffir beer with the yeasts in accordance with the present invention is described and 100 claimed in the Complete Specification of my copending Application for Letters

Patent No 26765/34 (Serial No 78 R,:305).

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* GB786201 (A)

Description: GB786201 (A) ? 1957-11-13

Improvements in or relating to engine remote control devices


PATENT SPECIFICATION Date of Application and filing Complete Specification: Oct 21, 1954. Application made in France on Jan 29, 1954. 786,201 No 30347154. \ Complete Specification Published: Nov13, 1957. Index at acceptance:-Classes 40 ( 1), H 11 B 9; 80 ( 3), Z 9; and 135, P( 11:16 F:22:26:X). international Classification:-FO 2 b, F 06 h, CO 8 c. COMPLETE SPECIFICATION Improvements in or relating to Engine Remote Control Devices We, REGIE NATIONALE DES USINES RENAULT, a Body Corporate under the Control and the Authority of the French Government, of 8-10, Avenue Emile Zola, Billancourt (Seine), France, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to a device for the remote control of a member regulating the admission of fuel to internal combustion engines. When the displacements of such a member are controlled by a plurality of control members, it is necessary, in certain applications, to be able to cause these control members to act either separately or

simultaneously, the effects of all or some of them being additive. Assuming that the displacements of a member are dependent on the displacements a, b and c of three basic control members A, B and C, the following eight positions of the controlled member should be obtainable:Position 1 or position of rest. Position 2: Displacement controlled by member A alone. Position 3: Displacement controlled by member B alone. Position 4: Displacement controlled by member C alone. Position 5: Sum of the displacements controlled by members A and B. Position 6: Sum of the displacements controlled by members A and C. Position 7: Sum of the displacements controlled by members B and C. Position 8: Sum of the displacements controlled by the three members A, B and C. According to the invention there is provided a device for the remote control of the displacement of a member controlling the admission of fuel in internal combustion engines in which the member to be displaced is remotely controlled through electrical and/ or fluid pressure means and is dependent on the action of a plurality of basic operating members which form a multi-stage control circuit in such a manner as to exert their action on the said member, the actions of the 50 basic operating members having a Separate or additive effect, wherein the basic control members are constituted by the pistons of superimposed pneumatic cylinders, each piston being connected to the body of the 55 cylinder situated immediately above it, the bottom cylinder being articulated on its support and carrying a member for guiding the other cylinders, and the piston of the top cylinder being connected to the member to 60 be operated. An embodiment of a control device according to the invention is hereinafter described, by way of example, with reference to the accompanying drawings, in which: 65 Fig 1 illustrates diagrammatically the embodiment of a remote control device; Figs 2 and 3 illustrate an arrangement in which the control is electro-pneurnatic. Fig 4 shows a modification of a remote 70 control device according to the invention. The device in Fig 1 comprises essentially three compressed air cylinders A 3, B 3 and C 3, superimposed in such a manner that the body of the cylinders B 3 is rigidly connected, 75 by means of a rod 32 ', to the piston 33 of the cylinder A 3; the body of the cylinder C 3 is rigidly connected, by means of a rod 34, to the piston 35 of the cylinder B 3; and the piston 36 of the cylinder C 3 is rigidlycon-80 nected, by means of a rod 37, to a lever 38, the angular position of which has to be controlled The body of the cylinder A 3 is articulated on a support 39 and carries a rod on which are guided the cylinders B 3 and 85 C 3.

Each of these cylinders has a compressed air inlet 41, 42 or 43 and contains a compression spring 44, 45 or 46. When the cylinder A 3 alone receives com 90 786,201 pressed air, the piston 33 traverses the whole length of the cylinder, effecting the displacement a. Being rigidly connected to the rod of A 3, the body of the cylinder B rises by a Since no compressed air is admitted to the cylinder B 3, the body of the cylinder B 3 moves the piston 35 and the rod 34 through the same distance a and, for the same reasons, the cylinder C 3, its piston 36, and its rod 37, rise by a. If the cylinder B 3 receives compressed air at the same time as the cylinder A 3, the piston traverses the whole length b of its cylinder, and consequently its own displacement is added to the displacement a originating from the cylinder A 3. Thus the cylinder C 3 and its piston 36, as well as the control rod 37, likewise rise by a + b. If the cylinder C 3 receives compressed air at the same time as the cylinders A 3 and B 3, the piston 36 traverses the whole length of the cylinder C 3 and rises by the amount c; it thus adds its own displacement c to the displacement a + b originating from the cylinders A 3 and B 3 and, as a result, the rod controlling the member 38 rises by the total amount a + b + c. It is thus possible to obtain the eight positions specified based on the three strokes a, b, c of the cylinders A 3, B 3, C 3. Fig 2 illustrates an electric distributor switch forming part of an electro-pneumatic control device according to the invention. This distributor switch establishes or breaks the current feeding electrically operated valves and consists of a drum 47 carrying a certain number of conductor studs 48 which are wiped by brushes 49 of various electric circuits, according to the angular positions occupied by the drum handle 47 '. Fig 3 is a theoretical diagram of the device in which the distributor switch of Fig 2 controls the three electrically operated valves 50, 51 and 52 and consequently the admission of compressed air to the cylinders A 4, B 4 and C 4 On the right-hand side of the Figure will be seen a development of the conductor studs of the drum 47 in rows 53, 54, 55 and 56. The stud of row 53 is a conductor round the entire periphery of the surface of the drum 47 and it is connected to one pole of a source of current The row 54 comprises four studs which, when the handle 47 ' occupies the positions 2, 4, 6 and 8, are contacted by a brush connected electrically to one terminal of the electrically operated valve 50 which, 6 being in turn connected to the source of current, is thus energized and permits the admission of compressed air to the

cylinder A 4 Since the arrangement of the pneumatic cylinders is as shown in Fig 1, while the rows of studs and the electrically operated valves are connected electrically as shown in Fig 3, this device again permits the rod 37 and the lever 38 to be controlled in such a manner as to cause them to occupy one of the eight positions described as a function of the 70 angular position of the handle 47 ' and consequently of'the drum 47 The cylinders act separately when the distributor switch is in the positions 2, 3 and 5 The position I corresponds to rest and the positions 4, 6, 7 75 and 8 respectively to the combined actions of the cylinders A-B, A-C, B-C, A-B-C. When it is necessary not only to effect a certain number of displacements of the controlled member, but also to give each of these 80 displacements a predetermined value, the device shown in Fig 4 is inserted between the control mechanism and the member to be displaced For this purpose the end of the rod 37 is articulated on a cam 57 pivoting 85 about an axis 58 and raising a follower roller 59 mounted at the end of a lever 60 The latter pivots about a shaft 61 and is articulated at 62 to the end of the controlled member 7 90 When the device according to the invention is applied to the control of the fuel admission in a railway vehicle having an internal combustion engine, several control devices may be combined in such a manner as to be 95 actuated, for example, from the same electric distributor switch and to control the members regulating the fuel admission to several engines in a single vehicle.


* GB786202 (A)

Description: GB786202 (A) ? 1957-11-13

A plant for washing bulk material containing sand and/or stone


PATENT SPECIFICATION Date of filing Complete Specification: Oct 5, 1955. Application Date: Oct 28, 1954 No 31150/54. Complete Specification Published: Nov 13, 1957. Index at Acceptance:-Class 82 ( 2), H( 9:11). International Classification:-BO 3 b. COMPLETE SPECIFICATION. A Plant for Washing Bulk Material Containing Sand and/or Stone. We, FREDERICK PARKER LIMITED, a British Company, of Viaduct Works, Catherine Street (Extension), Leicester, and FREDERICK WILLIAM PARKER, a British Subject, of the Company's address, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- The present invention is concerned with a plant for washing bulk material containing sand and/or stone (in which term is included all kinds of stones and minerals of like hard and broken or divided characteristics, for example gravel and flint) with water. This plant is particularly suitable for recovering stone and sand separately from the mixture of the two which is found, and is quarried or raised, in many places It is, moreover, capable of use either as a separate unit for the purpose indicated, or as part of a machine having other component assemblies, e g a machine which also includes means for crushing stone before passing the latter to the washing plant. Thus the invention provides a plant for washing bulk materials containing sand and/ or stone, comprising a rotary drum adapted, when rotated, to advance the bulk material with a cascading effect, and in admixture with water, to the discharge end of the drum where the washed material leaves for separation, this drum having at its feed end a feed ring which is of larger diameter than the drum body, is of channelled formation at its periphery, has an inner delivery ring communicating with the interior of the drum, and has angularly spaced ducts which extend inwardly from the peripheral channel in the feed ring to the inner delivery ring and are adapted to lPrice guide infed raw material from this channel to the inner ring for delivery into the feed end of the drum. Advantageously, moreover, the inner delivery ring has a central cone or frustrum of a cone for guiding the material entering the delivery ring from the ducts into the feed end of the drum The interior of the delivery ring may be divided up into compartments, each serving one of the ducts, by partitions extending between the periphery of this

delivery ring and the cone or cone frustum. This arrangement is found to give a very satisfactory feed and to prevent entrained water from running back continually into the ring and interfering with the feed of fresh material. In accordance with a further feature of the invention a fixed trough is provided at the discharge end of the drum, and the latter has a set of scoops or buckets mounted at this discharge end of the drum, so as to be rotatable with the latter, whereby the open mouths of the scoops or buckets are adapted to pass through the trough to scoop up material deposited therein from said discharge end. In an advantageous form of the plant according to this invention, used for washing bulk materials containing sand and stone, this plant comprises a rotary drum having at its feed end a feed ring with a channelled periphery and a plurality of ducts extending inwards from said periphery at intervals therearound and between said channelled periphery and a central delivery ring opening into the interior of the drum such that, when the drum is rotated, it is adapted to advance the bulk material, with added water, and with a cascading effect, to the discharge end of the drum and to at least one screen rotating with the drum and adapted to separate the stone from the sand and water, and 786,202 786,202 in which a set of scoops or buckets is rotatable with the drum so as to pass, each in turn, through the sand and water mixture deposited by the screen or screens and to pick up the sand and subsequently discharge it outside said trough. Thus, the plant, which conveniently is wheeled and mobile, can be supplied at the feed end with the parent mixture of stone and sand, this mixture then being passed through the plant so that the water washes dirt from the stone, the stone and sand are screened and discharged, and the sand is drained to a greater or lesser degree and delivered separately in semi-dried condition. Advantageously the screen located at the discharge end of the drum is disposed so that water with entrained sand passing therefrom enters the stationary collecting trough through which successive perforated buckets, disposed with their open mouths leading around a ring secured to the drum and rotating therewith, pass in turn with a scooping action, whereby each bucket picks up from the collecting trough a quantity of the sand which has settled at the bottom of the trough and carries it upwards and around during the travel of the ring, with the surplus water draining out through the perforations in the bucket, until the drained sand is tipped out to a delivery point at the other side of the ring when the bucket has reached an appropriate point in its downward travel. Preferably the screen is of frusto-conical or cylindrical form and is disposed at the discharge end of the drum so that it rotates with the

latter, and communicates with the interior of this drum through an end opening in the latter thereby forming, in effect, to an extension of the drum. As will therefore be appreciated, as the sand enters the screen from the drum the sand and water immediately commence to separate from the washed stone and to pass through the wall of the screen whilst the washed stone passes forwards along this screen so as to be discharged from the open end of the latter, for example into a chute. The major amount of the sand is thus deposited in the trough at the end thereof nearest the drum, i e the part through which the buckets pass, but to ensure that any sand deposited further along the trough is brought into the path of the buckets, an appropriately-formed spiral blade may be provided externally at the outside of the screen so as to scrape this further sand over the bottom of the trough and positively move it into the bucket path. Although only one separating screen has been specifically referred to above, there will preferably be several screens of different perforation-size so as to grade the pieces of separated washed stone, In this event, the screens will conveniently be concentrically mounted at the end of the drum so that the stone-sand-water mixture leaving the latter will pass first into the inner screen, and then through the various screens in turn, these 70 each taking off stones of the appropriate size and discharging the stones it has collected into a separate chute. Moreover, where the screen, or the inner screen, is of smaller diameter than the dis 75 charge end of the drum the latter is provided at this end with angled plates or like formations, hereinafter referred to as lifting boxes, for moving the stone-sand-water slurry towards the centre of the drum at this end to 80 ensure its transfer into the screen or inner screen. The feed ring is open at one side at least for receiving the bulk material to be charged thereby into the drum The side of the feed 85 ring which is left open is dependent on the intended use of the plant Where, for example, the plant is a separate unit and is simply to be fed with fresh material from some external source then the front side, 90 i.e that facing away from the drum, will best be open On the other hand, it may be of advantage, where the plant forms part of some larger machine or assembly, to have the other side of the ring open for receiving 95 the conglomerate to be treated, e g material fed in by a conveyor from a crusher Again, the feed ring can be open at both sides, thus making the supply from either side alternative 100 Provision may be made for water to be played to the channelled periphery of the feed ring to keep it, and its guide chutes, clear of adherent sand.

The main suppky of washing water is 105 added to the mixture as it enters the drum proper, and this latter is provided with plates or baffles mounted in the usual way so as to project internally from the wall of the drum and to move the stone, sand and water 110 aggregrate along the rotating drum towards the discharge end with a cascading action, resulting in a thorough washing of the stone. The water is conveniently supplied both to the feed ring and to interior of the drum 115 from common piping and from a pump which is advantageously operable by the power unit used to rotate the drum This pump can also, with advantage, be used to supply water for flushing the internal sur 120 faces of the rotary screens. On specific form of a washing and sand and stone separating plant constructed in accordance with the invention is illustrated in the accompanying drawings, in which: 125 Figure 1 is a side view of the plant. Figure 2 is a plan of the same. Figure 3 is a longitudinal cross section through the plant on the line III-III of Figure 2 130 from the engine shaft is transmitted to a stub shaft 22 carrying a pulley 23 and a chain wheel 24 The drive from wheel 24 is transmitted through a chain 25 to a lay shaft 26, mounted in brackets 27 in the 70 gear casing 20, and from the latter through further chain gearing 28 to a shaft 29, similarly mounted in casing 20 and carrying a pinion 30 meshing with the chain 15 By an appropriate reduction in the transmission 75 ratio, through the chain and chain wheel gearing described, the drum 9 is rotated at an appropriate speed. Slung between the side arms of the chassis 1 below the drum is a bracket 31 on which 80 is mounted a pump 32, the operating shaft of which carries fast and loose pulleys 33. A belt-striking fork 34 is mounted on the chassis and is movable to shift a belt 35, running on the pulley 23, from one to the 85 other of the pulleys 33 for the purpose of coupling the engine drive to the pump 32 as and when required. At its forward end the drum 9 has secured thereto a feed ring 36 of larger diameter than 90 the drum and of generally cylindrical shape but with a frusto-conical rim 37 at the front side, At the rear side the feed ring is substantially closed by a wall 38, and has a central inner and cylindrical delivery ring 95 39 which is open at one side 40 into the drum through a corresponding opening in the end wall 38 of the latter. Disposed around and within the feed ring are three equally-spaced radial ducts 41, 100 each of rectangular transverse section and open at its inner and outer ends 42 and 43 respectively (see Figure 4) Each of the ducts 41 is defined between a side plate at the outer side and

the wall 38 of the feed 105 ring at its inner side Each duct is connected at an outer closed edge 44 to the cylindrical periphery of ring 36, and at the mouth -43 thereof has a triangular wing plate 45 connecting it to the rim 37 110 The periphery of the inner delivery ring 39 is interrupted at appropriate places to communicate with each of the ducts 41 through the lower openings 42 of the latter, and is closed at the outer side by a wall 46 115 which is formed with a cone or cone frustum 47 which tapers inwards of this ring (see Figure 3) In addition the ring 39 is provided with radial partitions 48, each disposed midway between two adjacent openings 42 120 and extending between the periphery and the inner cone 47 of this ring. As already been indicated, the feed ring 36 may be modified and be open at the rear side thereof for an infeed of material from 125 this side, in which event the rim 37 would be provided at the rear side and the wall 38 at the front side Again, the wall 38 could be omitted and the ring 36 open at both sides, in which case a rim such as 37 would 130 Figure 4 is an end view of the plant, as seen from the feed end. Figure 5 is an elevational view from the opposite end. Figure 6 represents a section on the line VI-VI of Figure 3, viewed in the direction of the arrows. The plant illustrated is intended for the washing of a mixture of sand and stone, the subsequent separation of the sand from the stone, and the delivery of these two main components separately In addition it is constructed so that it also performs a grading of the washed and separated stone. Moreover, this particular plant is in the form of a compact and mobile machine which can be transported to the required site Thus it has a main chassis formed by a pair of cross-braced longitudinal beams 1, _c this chassis being carried by a pair of wheels 2 which are mounted on an axle 3 suspended from the underside of the chassis by brackets 4, approximately midway along the length of the machine The chassis 1 is provided at its front end with a draw bar frame 5 and a coupling eye 6 which enables the complete machine to be attached behind a towing vehicle The chassis further carries, towards its front end, legs 7 which are hinged at 8 and can be swung back or, as illustrated, lowered into position when the plant is stationary so as to form struts which maintain the uncoupled plant with its chassis horizontal These legs 7 are advantageously in the form of jacks to enable their effective height to be varied in accordance with ground conditions. Mounted on the chassis 1 and extending over the major part of the length of this chassis is an imperforate cylindrical drum 9 which, in the illustrated horizontal condition of the chassis, likewise has its axis horizontal. The drum 9 is equipped externally with a pair of bearing rings 10

secured thereto, in each case by a ring of spaced channel-section brackets 11 Each of the rings runs on a pair of rotary rollers 12 carried by brackets 13 on a cross brace 16 of the chassis. Further, the drum has, between these rings 10, a toothed ring 14, likewise secured to the drum by spacing brackets, this ring 14 being driven by a chain 15 from a power unit disposed at one side of the machine and supported on further cross braces 16 of the chassis. The power unit comprises an internal combustion engine disposed in a casing 17 which is supported on the braces 16 through longitudinal rails 18, these also serving to support a clutch housing 19 and the front end of a gear case 20 which is supported at the rear directly by the side arms of the chassis 1. When a lever 21 controlling the clutch is brought into the engaged position, the drive 786,202 be provided at both sides and the inner ring 39 connected to ring 36 by means of the ducts 41, which in this case will each have its outer and inner sides defined by side plates. The parent mixture to be dealt with is supplied manually or mechanically into the lower part of the channelled periphery of the feed ring, in the case illustrated from the open front side, and as this feed ring rotates with the drum 9 the infed material passes through the mouth 43 of the next-following duct 41 As the feed ring continues to turn the material passes towards the centre of the drum as shown by the arrows in Figure 4, and through the corresponding opening 42 into the compartment in the delivery ring 39 communicating therewith, eventually sliding over the surface of the cone 47 and through the opening 40 into the interior of the drum 9 The partitions 48 in this inner delivery ring 39 prevent the mixture running back, this being a point of particular importance when the interior of the main feed ring 36 is wet, as will be referred to below. Water is delivered through a pipe 49 supplied by the pump 32, this pipe 49 passing through the inner delivery ring 39 and the opening 40 and terminating at 50 just inside the drum 9, such that the stone and sand mixture is admixed and thoroughly commingled with the water immediately on entering this drum The pipe 49 is supported at its delivery end by an inclined tubular strut 52 which is shackled at 52 to the longitudinal beam 1 at one side of the machine. A branch line 51 from the pipe 49 is arranged to deliver a certain amount of water into the conical rim of the feed ring 36, so as to keep the working faces of this ring flushed and clean, the partitions 48 in the inner delivery ring preventing the wet mixture from running back into the main body of the feed ring. The drum 9 is provided internally along its length with obliquely disposed blades or baffles 53 arranged in staggered fashion, these blades being secured by angle pieces 54 (see Figure 6) to the wall of

the drum and closed at their inner ends 55, so as to have the effect of agitating and advancing the stone-sand-water mixture along the drum towards its discharge end At the same time these blades 53 produce, in known fashion, a thorough washing action by a cascading effect in which successive quantities of the mix picked up by the blades are poured inwards of the drum as the latter rotates. At its discharge end the drum 9 has a delivery opening 56 of smaller diameter than the drum itself and has, projecting internally therefrom, adjacent this aperture and tangential thereto, opposed boxes 57 for lifting the 635 stone-sand-water slurry at this discharge end through the opening 56 Each of the lifting boxes 57 is constituted by a length of angled metal with a web 58 across its inner end. Secured to the drum 9 and coaxial with 70 tt the latter at its discharge end are three concentric perforated screens 59, 60 and 61 of different diameters The screens 59, 60 and 61 are conically tapered outwards and are formed with a multiplicity of perforations of 7 a a size decreasing from those of the inner screen 59 to those of the outer screen 61 The screens are also of different lengths such that screen 59 terminates at its outer open end a greater dis 84) tance from the drum 9 than the screen 60 and the latter in turn being of greater axial length than the screen 61. The mouths of the screens each communicate with a separate chute which is directed 85 so as to deliver the stones received from the respective screen to a separate point at the rear end of the machine Hence the mouth of the inner and longer screen 59 discharges into an open-topped, tapered, hopper-like '3 i casing 62 arranged at the rear of the machine and having a centrally and rearwardly directed delivery chute 63, the intermediate screen 60 delivers its stones into a hopper casing 64 arranged in front of casing 62 and 95 having at its lower end an inclined delivery chute 65 which directs the stones from the mouth of screen 60 to one side of the centre line of the machine (see Figure 5), whilst a similar and larger hopper casing 66 is 100 arranged in front of casing 64 to take the stones delivered from the mouth of outer screen 61, this further hopper having a discharge chute 67 directed towards the opposite side of the centre line from the chute 65 105 This screen and chute structure is supported by a framework including a pair of side beams 68 secured to the main chassis and extending rearwards therefrom, these side beams being connected, inter alia, by a llo cross piece 69 (see Figure 5) The members 68 of this supporting frame carry brackets supporting the hoppers 64 and 66 from the side, whilst the hopper 62 is secured to the rear side of hopper 64, which also serves 115 to support braces 71 extending at the rear end of the machine. In turn, the braces 71 carry a cross piece 73 which forms a support,

from the underside, of valve-controlled spray pipes for 12 ( 4 flushing the interior of the screens These pipes, denoted 74, 75 and 76, are branched From a pipe 77 running along one side of the machine and communicating with the pump 32 A cross bar 78 serves to locate 125 the pipes 74 to 76 at their upper sides. Secured between the hopper 66 and the rear end wall of the drum 9, is a larger sized trough 79 having, at the drum end and to one side of the machine, a casing 80 with a 134 786,202 59, 60 and 61 The larger stones and any large dross slowly run down the screen 59 to be discharged through the chute 63, again into a suitable collector, whilst the smaller stones pass through the perforations of inner 70 screens 59 on to screen 60 where they are either passed again through to screen 61, or, if of selected size, are eventually discharged through the chute 65 to another collector. The stones and any sand not already 75 separated are passed outwards to the screen 61, the residual sand gravitating into the rear part of the trough 79 whilst the stones are discharged through chute 67 As a result a certain amount of sand becomes de 80 posited in the trough 79 out of the path of the buckets, and this sand is scraped forward to the required position for collection by these buckets under the action of the helical blade 90 This arrangement ensures 85 a thorough cleaning of the stone before it is eventually discharged and, at the same time, collection of all the sand freed from the parent mixture. It will also be observed that all this feed 90 through the machine and separation is derived from the rotation of the main drum 9, powered by the engine 17, whilst the latter also initiates the delivery of the flushing water at the feed and delivery ends of the 95 machine. Consequently, the unit is self-contained and, as already described, is mobile, so that it can be quickly transported to the required site 100


* GB786203 (A)

Description: GB786203 (A) ? 1957-11-13

Improvements in or relating to flooring


PATENT SPECIFICATION 786,203 Inventors:-PETER WILLIAM WHITE GAZE and ERNEST WILLIAM WATTS. Date of filing Complete Specification: Oct 25,1955. Application Date: Oct 29,1954 No 31357/54. Index at Complete Specification Puilished: Nov 13, 1957. Index at Acceptance:-Clasnes 20 ( 4,, D 6; and 87 ( 1), B 1 A 2 B: B 3: 05 B: F 10). International Classification:-E 04 c. COMPLETE SPECIFICATION. Improvements in or relating to Flooring. We, ARCON (PROPRIETARY) LIMITED, a Company organised under the laws of Great Britain, of 41 Welbeck Street, London, W 1, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to wooden flooring or roofing. In the conventional type of wooden floor, the floor surface consisting of planks is supported by stringers to which the planks are cut to fit and the nailed down The present invention has for its object to provide a pre-fabricated wood floor construction which can be laid down in situ and once in position can be fixed by bolting together adjacent units using unskilled labour. According to the present invention a floor or roof unit comprises a horizontal panel and a vertical panel, the two panels, which are rectangular and provided with suitable stiffening ribs, being joined to one another to form an inverted L, stiffening ribs arranged respectively in the angle joint and across the opposite edge of the horizontal panel, a shoulder on the outer face of the vertical panel adapted for locating and supporting an edge stiffening rib of an adjacent unit whereby when the flooring or roofing is erected each vertical Danel provides the support for two adjacent horizontal panels, and holes provided in said ribs to receive bolts to join adjacent units together. In a preferred construction in accordance with the invention both the horizontal and vertical panels are provided with stiffening ribs along all four sides and intermediately and in the case of the vertical Danel the stiffeners are provided on both faces so as lPrice 3 s 6 d l

to give additional strength and provide a stiffening rib at the angle where the vertical is united to the horizontal panel, the upper 45 rib of the stiffening on the outer face of the vertical panel being located below the upper end so as to provide a step or shoulder to locate the stiffening rib on an adjacent panel 50 Part of a wooden floor formed by units in pacgordanqe with one embodiment of the invention is shown in the accompanying drawings of which:Figure 1 is a plan view of adjacent units; 55 Figure 2 is an elevation view of the units; Figure 3 is a section of one unit on the line III-III of Figure 2; and Figure 4 is a section of adjacent units on the line III-III 60 Referring to the drawings the floor comprises a plurality of similar units, only some of which are shown, resting upon a base structure B Each unit comprises a rectangular panel 1 which is laid in a horizontal 65 plane and forms part of the floor proper and a rectangular panel 2 which is substantially vertical and forms a beam or joist. The floor panel 1 is conveniently made from -" plywood and the beam panel 2 is 70 conveniently made from 3 a" plywood. The two panels are secured together, for example by means of an adhesive, along two adjacent edge portions so as to form an L-shaped structure which, when in use, 75 will be inverted. A wooden stiffening rib 3 is secured in the angle joint formed by the two panels, an end stiffening rib 4 is secured to the underside of the opposite end of the floor panel 1,0 and stiffening ribs 5 are secured to the underside of the remaining edge portions of the floor panel If desired further stiffening ribs 6 may be secured to the undersurface Min 9 is of the floor panel, such ribs extending parallel to the ribs 5 The ribs may be secured to the floor panel by any suitable means such as for example, an adhesive. Three stiffening ribs 7 are suitably secured to the three edge portions of the inner face of the beam panel 2 which also has an intermediate stiffening rib 71 Three further stiffening ribs 8 are secured to the side and bottom edge portions of the outer face of the beam panel and a fourth stiffening rib 81 is secured to the outer face, its upper surface being located at such a height that it forms a shoulder upon which the stiffening rib 4 of an adjacent panel can rest. It will be appreciated that when a floor composed of such units is erected, each beam panel will support two adjacent floor panels. Fixing holes 9 are formed in the ribs 3 and 4 and in the beam panel 2 so that when a floor composed of the units is erected adjacent units can be joined together by bolts 10 passing through the holes. Service holes, one of which 11 is shown in the drawings may be cut out in the beam panels for pipes, electrical conduits etc.

If desired, additional stiffening ribs 12 may be secured to ribs 7 and 8 to give :30 added stability and to provide a means for fixing or carrying ceiling bearers when the units form either a floor or a roof. A floor made from such units, being formed of laminated wood and wooden 3 a stiffening ribs is comparatively light in weight and is robust Furthermore it is easily erected since it is only necessary to bolt adjacent units together, and this can be done by unskilled labour.


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