baber/WOPTO huggingface dataset:
Patent GB-891785-A (GB)
Title: Lithium chloride recovery
IPC: C22B26/12
Filed: 1958-05-08
Abstract: <PICT:0891785/III/1> Lithium chloride is obtained from spodumene by roasting the ore with calcium chloride to evolve a gaseous mixture containing lithium chloride, cooling said mixture to below 1100 DEG F. by diluting with a gas, contacting the cooled mixture with water or an aqueous solution and recovering lithium chloride from the so-formed solution.  As shown in the drawin, b -spodumene mixed with calcium chloride is fed from a hopper 2 on to a grate 3, upon which it is carried through a pre-calcining zone 4, having baffles 5 and a stack 6 for waste gases.  The ore mixture is heated by means of part of the gases from a rotary kiln 9, which are forced to pass through the solids on the grate by said baffles. Alternatively the pre-calcining apparatus described in Specification 891,784 may be employed.  From the pre-calcining zone, the material passes into rotary kiln 9, where it is heated by means of hot gases at 1600-2800 DEG F. supplied by burner 11.  The solid product is cooled at 12 and then passed to storage.  The gases produced in the rotary kiln are withdrawn through conduit 7, diluted at 15 with air or other diluent, e.g. carbon dioxide or nitrogen, to cool them to below 1100 DEG F. and then passed through a Venturi scrubber 18 into which an aqueous solution is introduced through line 19.  The mixture is passed to cyclone separator 20, gases being vented at 21 and the liquid collected in tank 23 to p  which water is added.  The solution is then passed to clarifier 25, from which an overflow stream is passed to the scrubber and the underflow removed as product.  By adding limestone and sand to the initial materials, Portland cement clinker can be concurrently produced at a roasting temperature of 2600-2780 DEG C.
Patent GB-528948-A (GB)
Title: Improvements in tubular heat exchangers intended particularly for heating air by hot water or steam
IPC: F28D1/053
Filed: 1939-05-17
Abstract: 528,948. Soldering heat exchangers. BORGWARNER CORPORATION. May 17, 1939, No. 14788. Convention date, July 18, 1938. [Classes 83 (ii) and 83 (iv)] [Also in Group XIII] In a heat exchanger having tubes A connected to headers C and provided with fins B soldered to all the tubes, a shield plate D between the fins and each header protects the soft solder joints of the fins during the hard soldering of the tubes to the header.
Patent GB-235232-A (GB)
Title: Improved process of thickening and stabilizing rubber latex and products prepared thereby
IPC: C08L7/02
Filed: 1925-06-08
Abstract: 235,232. American Rubber Co., (Assignees of Teague, M. C.). June 9, 1924, [Convention date]. Latex, treating.-Thickened and stabilized rubber latex compositions for extruding, spreading, and dipping purposes are obtained by adding to latex certain substances adapted to thicken the aqueous phase and stabilize the latex without substantially modifying the colloidal condition of the rubber hydrocarbon. The substances are either (a) metallic compounds which react chemically with the water-soluble constituents of the latex (particularly with the latex sugar), but which preferably do not attack the proteins, or (b) fatty acid soaps of volatile bases. Examples of the first class are lead thiosulphate, basic lead acetate, lead acetate with a protective agent, litharge, lead hydroxide, red lead, the reactionproducts of lead oxides or salts and mono-, di-, and poly-saccharoses, lead chloride, bismuth hydrate, ferric oxide, ferrous lactate, basic ferric acetate, ferrous oxalate, stannous oxalate, and cadmium sulphide. As an example of this modification, a compound for spreading on cloth consists of 100 parts by weight of rubber (as latex), 90 parts of whiting, 30 parts of litharge, 5 parts of fine oil, 25 parts of light spindle oil, 2 parts of glue, 2.5 parts of sulphur, 5 parts of acid acetaldehyde-analine condensation-product, and 234 parts of water. The mixture is allowed to set for four hours before use. Substances of the second class are the ammonium or substituted ammonium soaps of acids of the stearic and oleic series or of cocoanut, cotton seed, palm, linseed, and corn oils. As an example of this modification, a compound for spreading a fabric is obtained by adding to 100 parts of rubber (as latex) 22 parts of the ammonium compound of cocoanut oil, 100 parts of lithopone, and small quantities of glue and colouring and vulcanizing ingredients. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of saponin instead of the above-mentioned thickening and stabilizing agents. This subject-matter does not appear in the Specification as accepted.
Patent GB-1537685-A (GB)
Title: Endodontic composition
IPC: A61K6/884
Filed: 1976-04-13
Abstract: A composition useful in forming a physiologic root end closure, a method of making the composition and a method utilizing the composition. The composition comprises a buffered solution of colloidal collagen, a calcium salt, a phosphate salt, and optionally, Lugol's solution.
Patent GB-1513615-A (GB)
Title: Apparatus for lining drainage ditches and the like with concrete
IPC: E02B5/00
Filed: 1976-04-13
Abstract: 1513615 Ditch lining apparatus MILLER FORMLESS CO INC 13 April 1976 [14 April 1975] 15000/76 Heading E1S The side 102 and top brim 32 of a ditch is lined with concrete which is laid by an apparatus comprising a hopper 54, a slip form 124 and a screed 230, the hopper 54 having a leading lower edge contoured to that of the ditch and a trailing lower edge located in a plane above the leading edge and contoured to that of the surface of the concrete lining 100. Concrete is supplied to the hopper 54 by a chute 66 having an internal auger, and the hopper 54 includes weir plates 80 and vibrators 92. The slip form 124 is integral with the wall 72 of the hopper 54 and is stiffened by members 152. To allow various widths of concrete to be laid, an adjustable skirt member 180 is transversely moved by rams 200, 202 and comprises an end wall 182 for the hopper 54, two side walls overlapping the side walls 72, 74 of the hopper 54 and a web plate (182) which slidably rests on the slip form 124 and is held in position by being located under the members 152. The apparatus is suspended off the side of a mine mover 10 by telescopic struts 140, 168 and rams 212. The height of the screed 230 is adjustable by a screw threaded crank 264 and is biased into a canted position.
Patent GB-617980-A (GB)
Title: Improved process for purifying nitriles
IPC: C07C253/34
Filed: 1946-05-17
Abstract: Saturated or unsaturated fatty acid nitriles, having at least six carbon atoms and containing no conjugated double bonds are purified by heating said nitriles in the presence of maleic anhydride and washing the thus treated nitrile with water.  The reaction is preferably effected at a temperature between 100 DEG  and 200 DEG C., but below the boiling point of the pure nitrile.  In an example, a mixture of oleic acid nitrile containing one to two per cent by weight of maleic anhydride is heated to about 175 DEG  C., the product allowed to cool, washed with water to remove water-soluble reaction products and the nitrile distilled, if desired.  Other specified nitriles are stearic acid nitrile and the nitriles of fish oil fatty acids which may contain twenty-six carbon atoms.
Patent GB-1443001-A (GB)
Title: Safety devices for machine tools
IPC: F16P3/16
Filed: 1973-03-28
Abstract: 1443001 Machinery safety devices DUNLOP Ltd 27 March 1974 [28 March 1973] 15004/73 Heading F2J A blade guard 20 having a transparent plastics extension shield 23 at its leading edge, for a table-mounted band-knife or band-saw, is operated by the blade starting mechanism (not shown) on starting the knife or saw blade 10 to either set and maintain the guard 20, 23 at a predetermined distance above the work during cutting or to lower the guard to the table if the blade 10 is started without the insertion of work, thereby giving total protection from the moving blade, and thereafter to return, i.e. raise the guard 20, 23 to its "rest", i.e. inoperative position when the blade is stopped. In operation the material 40 to be cut is placed in position relative the blade 10. The blade 10 is started and a pneumatic back-pressure sensing probe 33, carried by the guard, and actuated by its pneumatic control cylinder 34, energized by the blade starting mechanism, moves to a position below the guard 20. Air passes through the probe and the guard 20 moves down, via a pneumatic driving cylinder 31, towards the material 40, or the work-table 50 if no material is present, until on contact with the material, or work-table, a back-pressure is sent to a diaphragm valve (not shown) which actuates a pneumatically operated guard locking device 35, retracts the probe 33 and exhausts both sides of the guard driving cylinder 31 such that the guard is stationary at a set distance above the material with the blade running and will remain in this position until the blade is stopped, i.e. switched off, when the guard will remain stationary for a preset time, to allow the blade to stop and then return to the "rest" position.
Patent GB-858226-A (GB)
Title: Improvements in or relating to fish filleting machines
IPC: A22C25/00
Filed: 1958-05-09
Abstract: 858,226. Filleting fish. DYEKJAER, J. C. C. May 9, 1958 [May 11, 1957], No. 15010/58. Class 28 (2) After cutting fillets from each side of the backbone and ribs of a fish by upper and lower pairs of spaced disc knives, the cuts being made for as far as the spine, the final separation is made by other pairs of resilient pushing-off blades 7 which are moved together e.g. by cams 20 operating arms 13 for each pair. The blades 7 have interengaging chamfered serrated edges 8 and are resilient to move closely along the bones. The fish filleting cuts are held open by guide plates 6. Further opening guide plates 9, .10 and further cutters 11 (Fig. 2 not shown) are provided behind the blades 7 to separate the fillets from the ribs or other ossifications these blades being at an angle of 17 degrees. The guide plates 9 and 10 are spring biased to move towards the fish. All the cutters and guide plates are moved apart to allow the tail clamp 3 to pass.
Patent GB-1147536-A (GB)
Title: Conveying element
IPC: D01G23/00
Filed: 1966-04-05
Abstract: 1,147,536. Conveyers. H. FLEISSNER, H. FLEISSNER, and G. FLEISSNER, [trading as ANSTANT FUER PATENTDIENST]. 5 April, 1966 [24 May, 1965], No. 15018/66. Heading B8A. [Also in Division D1] A conveying element for operating in a moist air atmosphere and/or coming into contact with moist material has a conveying surface with spike projections or spaced shallow grooves (i.e. having a depth less than their width and spaced by intervals similar to their width) and the conveying surface is heated by a radiant heating device so that the tendency of the material to stick to the conveying element is reduced. The element is preferably heated at a point where it does not contact the material. In Fig. 1 the grooved nip rollers 2, 3 of a textile opener are heated by radiation heaters 5. In Fig. 2, not shown, a spiked conveyer (7) is heated by radiation devices (12) arranged between the two runs of the belt.
Patent GB-568161-A (GB)
Title: A method and means for electrolytically providing metals with an improved hard wearing surface of chromium
IPC: C25D5/14
Filed: 1943-09-14
Abstract: 568,161. Electrodepositing chromium. PEACH, A. L. Sept. 14, 1943, No. 15031.. [Class 41] [Also in Group II] High-speed tool steels and other basis metals are given a hard wear-resisting, firmly-adherent, surface by depositing thereon an inner layer of soft chromium and then an outer layer of hard chromium ; or, if a wear-resistant surface is not essential, a further deposit of soft chromium may be applied and may be followed by another of hard chromium. The cleaned basis metal is first immersed in the "soft" bath for five minutes before current is passed, a current of 300 amps. /ft.<2> then being passed for 30 minutes at a temperature of 30-90 C., and preferably at 50 C. The article is then rinsed in water at 50 C. and treated in the '' hard " bath at 52 C. and 200 amps. density. The " hard " bath comprises 250 grams of pure chromic acid (Cr03) per litre and 2.5 grams of sulphuric acid. The " soft " bath additionally contains 15-42 grams of ferrous hydroxide or carbonate, 20 grams being the preferred figure, or 15-30 grams of nickel hydroxide or carbonate or aluminium hydroxide. Specification 566,218 is referred to. The Provisional Specification sets out temperatures of 70 and 50 C. for the '' soft and " hard baths, respectively, and gives the following ingredients for a tool-steel alloy : 12-22 per cent tungsten, 2-6 per cent chromium, 0.3-0.5 per cent vanadium, and traces of cobalt.
Patent GB-1110211-A (GB)
Title: Plant for the treatment of poultry manure
IPC: A01C3/00
Filed: 1964-04-10
Abstract: <PICT:1110211/C1/1> In a method of treating poultry manure by compression in a pipe, extrusion, shredding, and drying, the drying is carried out at a temperature of up to 450 DEG  F. in a chamber 5 through which the manure is passed on an endless conveyer belt 6.  A roller 8 of P.T.F.E. at the entrance maintains a depth of 1/8 inch. A roller entrance maintains a depth of 1/8 inch.  Stationary or rotary spiked rollers 13 above belt 6 effect stirring.  Hot gas is supplied to the drying chamber through inlet 9.  Alternatively or in addition, static heaters may be mounted above the belt. After drying, the manure is milled and bagged.
Patent GB-375039-A (GB)
Title: Improvements in or relating to the manufacture of hydrochloric acid and apparatus therefor
IPC: C01B7/03
Filed: 1931-05-21
Abstract: 375,039. Chemical furnaces. CHEMICAL & METALLURGICAL CORPORATION, Ltd., Astmoor Works, CRABTREE, J. W., Hollies, Halton Brook, both in Runcorn, Cheshire, and CASSON, S. B., 12, Peru Street, Higher Broughton, Manchester. May 21, 1931, No. 15046. [Class 51 (ii).] In a hydrochloric acid furnace having a rotating rabble and an off centre acid feed pipe 21, the rabble arms 24 are protected from the acid by removable saddle-shaped guards 26, which may be secured in dovetailed grooves in the arms by set-screws. Leakage of gas through the feed pipe 21 is prevented by covering the inlet end by a bell 30 thus providing a liquid seal. The salt is fed from a hopper 19, and the feed pipe 17 is protected by an external stoneware sheath 20.
Patent GB-1204373-A (GB)
Title: Conveyor advancing devices for use in mines
Inventor: CANNON DENNIS HENRY
IPC: E21D23/08
Filed: 1967-04-03
Abstract: 1,204,373. Anchor supports for mine conveyors. DOWTY MINING EQUIPMENT Ltd. 19 March, 1968 [3 April, 1967], No. 15065/67. Heading E1P. In an anchor support for a mine conveyor 34 comprising a box-like base 11, 12 having a pivotal, double-acting jack 27 therein the latter is coupled to the conveyor .by a beam having bearing, surfaces 35, 36, 37, 38 arranged as shown which to-gether with the pivotal connection of the beam to the jack and to the conveyor allows relative tilting movement therebetween to accommodate floor uneveness. The base is provided with bearing plates 21, 22. For minor modifications the Specification should be referred to.
Patent GB-593832-A (GB)
Title: Improvements relating to loose-leaf binders
IPC: B42F13/00
Filed: 1945-06-14
Abstract: 593,832. Loose-leaf binders. KALAMAZOO, Ltd., IMPEY, F. L., and ELEY, L. June 14, 1945, No. 15132. [Class 146 (i)] In a loose-leaf binder having a plurality of thongs 3 attached to covers 1, one of the clamping bars 4 is formed adjacent to its inner edge with notches 5 which enable it to be detachably engaged in the thongs 3 and which each have an opening either at the centre as shown in Fig. 1, or at one end and each clamping bar 4 has a continuous thickened outer edge presenting a surface 6 to receive an inscription. The outer edges or the whole of the clamping bars may also be coloured for distinguishing purposes. The clamping bars 4 are made from any convenient hard material, but when they are made from metal, e.g., aluminium or aluminium alloy, recesses 7 are formed to accommodate layers 8 of some non-metallic material at the parts where the covers rub the bars.
Patent GB-741350-A (GB)
Title: Improvements in or relating to method and apparatus for forming fabric loops
IPC: A61F13/15
Filed: 1952-12-19
Abstract: 741,350. Catamenial appliances. INTERNATIONAL CELLUCOTTON PRODUCTS CO. Dec. 19, 1952 [April 14, 1952], No. 15200/54. Divided out of 741,304. Class 81(2). In a mechanism for forming attachment loops, being part of the napkin making machine described in Specification 741,304, the loops are made by cutting a length from a tube of fabric and rolling this upon itself. A tube of stockinette material 66 is passed around a mandrel 170, supported by two feed rollers 186, 187, which shapes it into a flat form for passage between a cutting roller 192 and an anvil 190. A wire 188 passes from the upper mandrel, through a groove 200 in the anvil roller 190, to support a lower mandrel 172 and, as a result of said groove, the fabric is completely cut through except for a few strands, which are subsequently broken as arms 210, on a feed chain 208, draw the sections down on to the lower mandrel, since these arms 210 move at increased linear speed as they pass around the curved part of their path. The tapering form of the mandrel 172 causes the fabric to roll on itself to form a loop and, towards the lower end of the mandrel, a spring bar 248 and two friction plates, not shown, retard one side of the loop so that it assumes an almost vertical position ready to be picked up by the feed drum of the main machine for attachment to the napkin.
Patent GB-325437-A (GB)
Title: Improvements in or relating to water gas generating apparatus
IPC: C10J1/213
Filed: 1929-05-15
Abstract: 325,437. Tully, Sons, & Co., Ltd., and Tully, C. B. May 15, 1929. Producers.-Water gas generators having two or more preliminary distillation retorts are provided with a separate valve-controlled outlet for each retort, the valves being opened in sequence so that water gas generated in the producer is caused to flow through the retorts in turn. The two retorts surmounting a producer 1 are respectively connected to outlet pipes 8, 9 terminating in a seal box 10. Valves 11, 12 controlling the pipe outlets are operated by a lever 17 which is oscillated when required by means of a cam 20 and coacting roller 18<a> carried by a rod 18. The cam may be driven by a belt, as shown, or other means from a mechanical operator 23 actuating the main valves of the plant. In a modication, a producer has four retorts each having an outlet with a valve controlled by a separate cam. Provision may be made for prolonging the time during which the water gas is passed up a particular retort.
Patent GB-159115-A (GB)
Title: Improvements in drawing boards
IPC: B43L5/00
Filed: 1920-06-05
Abstract: 159,115. Dargue, A. W., and Dargue, F. L. June 5, 1920. Drawing-boards adapted to be used on both sides are strengthened by transverse battens or strips passed through slots cut in the boards. As shown in Figs. 1 and 2, the board is constructed of pieces a, a through which are formed openings b of suitable cross-section. Battens or strips c, preferably of hard wood, are forced through these openings. The ends of the battens may be flush with the edges or sunk to allow for shrinkage. The openings b may not pass completely through the boards.
Patent GB-896874-A (GB)
Title: Improvements in the production of crease-resistant cotton woven fabrics
Inventor: HAYASHI TADAO
IPC: D06M15/423
Filed: 1958-05-13
Abstract: Cotton woven fabrics and cotton mixed fibre woven fabrics are creaseproofed by dipping them into an aqueous emulsion of poly-methyl siloxane and drying and then treating them with a resin precondensate finishing agent in liquid form selected from monomethylol urea, dimethylol urea, monomethylol melamine, dimetholol melamine, etherified urea formaldehyde resins, etherified melamine formaldehyde resins and cyclic urea resins, e.g. N,N1-dimethylol ethylene urea, tetramethylol acetylene diurea and etherified cyclic urea resins such as methylated dimethylol urone, and a surfactant such as a nonionic surface active agent, e.g. a polyoxyethylene fatty acid ester, baking, soaping and drying.  From 0.1% to 5% by weight of the polymethyl siloxane may be applied to the fabric.  The treatment of a poplin fabric made from 65% by weight of "Terylene" (Registered Trade Mark) and 35% by weight of cotton is described in an example. Specification 695,703 is referred to.
Patent GB-1298105-A (GB)
Title: Sliding clasp fastener
Inventor: SOHR HANS-ULRICH
IPC: A44B13/00
Filed: 1970-03-31
Abstract: 1298105 Sliding clasp fasteners H-U SOHR 31 March 1970 [28 March 1969] 15303/70 Heading E2S A method of manufacturing a sliding clasp fastener includes the steps of sewing a pair of previously unheated coils of thermoplastics material having a high heat shrinkage capacity to respective stringer tapes, then heating the coils to a temperature above 100C but below their softening temperature, thus heat shrinking the coils which consequently increase in crosssectional area for tight engagement by the thread securing them to the stringer tapes.
Patent GB-836317-A (GB)
Title: Well drill bit
IPC: E21B10/18
Filed: 1958-05-13
Abstract: 836,317. Boring earth. REED ROLLER BIT CO. May 13, 1958 [Aug. 28, 1957], No. 15318/58. Class 85 In a drill head 22 having passages 30 for drilling fluid, each passage has a nozzle 21 which is held against axial movement in each direction by releasable locking means. As shown a locking means comprises a resilient split ring 32 engagable with grooves 29, 31 in a nozzle and the head respectively. The head has recesses 33 to permit access to the ends 34 of the rings. Each nozzle comprises a tungstencarbide tube 24 secured to a steel bush 25 having an annular groove 27 for a seal 28. In a modification having single piece tungsten-carbide nozzles, each nozzle is cut away to permit access to the ends of the rings. The drill head is of the roller type.
Patent GB-1475698-A (GB)
Title: Yarn friction false twister
IPC: D02G1/08
Filed: 1975-03-27
Abstract: 1475698 False twisting ERNEST SCRAGG & SONS Ltd 27 March 1975 [6 April 1974] 15348/74 Addition to 1381132 Heading DID A friction false twist device having a plurality of overlapping rotary discs 11 arranged on axes 12 disposed in such manner that a thread 19 contacts the edge of each disc 11 in turn and is false twisted by being rotated by frictional contact with the moving edges as the discs 11 rotate all in the same direction, comprises an end disc 11(o) at the thread outlet end of the device, the disc 11(o) having a lesser coefficient of friction with the thread 19 than the inner discs 11 and is of larger diameter than the discs 11. Preferably, the device is provided with an inlet end disc 11(I) having a lesser coefficient of friction with the thread 19 than the inner discs 11 but is of smaller diameter than the discs 11. The discs 11 may be rubber or polyurethane tyred and the discs 11(o), 11(I) may have at least their rim portions formed of aluminium or stainless steel. For a polyester yarn in the denier range of 130 to 170, preferably 150, the discs 11 have a diameter of 45mm and a thickness of 4mm. The diameter of the disc 11(o) is 46-50 mm and of the disc 11(I) 40-44.5 mm. The distance between the axes 12 is 35.5mm and the gap between adjacent discs in the axial direction is 0.5 mm.