baber/WOPTO huggingface dataset:
Patent GB-665888-A (GB)
Title: Improvements in or relating to conveyors
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G23/00
Filed: 1948-07-10
Abstract: 665,888. Endless conveyers. FISHER & LUDLOW, Ltd. June 30, 1949. [July 10, 1948] No. 18593/48. Class 78 (i). In a chain conveyer of the kind which is driven by a power unit which includes a chain driving sprocket wheel and a power unit, e.g. an electric motor, one or more chain engaging members extending longitudinally of the chain and adapted to engage the chain along part of its length, are secured rigidly to the power unit in a position in which they are adapted to transmit the torque reaction from the driving unit to the chain. Preferably two chain engaging members 16, 17 constructed as portions of a cruciform guide track, are arranged to engage the part 14 of the chain which is in maximum tension and also the receding part 18. The members 16, 17 are fixed to the frame 11 of the driving unit by means of bolts 29 passing through holes in the frame 11 and in a supporting plate 28 welded to members 16, 17. The chain is constructed and driven as described in Specifications 639,244 and 665,887. The members 16, 17 comprise two elements 19 of channel form, the sides 21 of the channels being formed with oppositely directed aligned vertical flanges 22 each formed with vertically spaced horizontal edge flanges 23. One of the elements 19 is cut away partially near the end as indicated at 27 to accommodate the two toothed discs 26 of the sprocket wheel. A flange 30 may be provided with a series of holes for fixing one or both members 16, 17 in various angular positions, another position of member 16 being shown in chain lines.
Patent GB-1000881-A (GB)
Title: Process for making cyclohexanone-oxime
IPC: C07C/
Filed: 1963-05-10
Abstract: In a process for the preparation of cyclohexonone-oxime by oxidation of cyclohexylamine with hydrogen peroxide in the presence of soluble salts of tungstic, molybdic or uranic acid as a catalyst, the oxidation reaction is carried out in the presence of dicyclohexylamine to obtain an addition compound of cyclohexonone - oxime - dicyclohexylamine and which is distilled to separate the oxime and the dicyclohexylamine.  Preferably the molecular ratio of dicyclohexylamine to cyclohexylamine is between 0.05 to 1 and 1 to 1. The catalyst, e.g. sodium tungstate, is preferably used in the proportion of 0.1 to 5 mols per cent of the cyclohexylamine.  In an example to a solution of sodium tungstate and the disodium salt of ethylene diamine tetracetic acid in aqueous methanol, hydrogen peroxide was introduced progressively together with a mixture of cyclohexylamine and dicyclohexylamine over a period of one hour the resulting crystals of the addition compound of cyclohexonone-oxime-dicyclohexylamine were distilled to separate the oxime from the dicyclohexylamine.
Patent GB-676372-A (GB)
Title: Improvements in or relating to copolyesters and their use for electrical insulation
IPC: C08G63/183
Filed: 1949-07-15
Abstract: The Specification claims a copolyester of ethylene glycol, terephthalic acid and an acid of formula CnH2n(COOH)2, where n is 2-8, the copolyester having 2-4 molecular proportions of combined terephthalic acid for every molecular proportion of combined aliphatic dibasic acid.  Reaction between the three ingredients is preferably continued till the copolyester has a molecular weight of 10,000 or more or alternatively a lower molecular weight copolyester may be treated with a polyisocyanate whereby the molecular weight is 10,000 or more.  The copolyesters may be used as insulating coverings for conductors (see Group XXXVI) in which case they may be applied to the conductor (a) dissolved in a solvent, e.g. o-cresol, cresylic acid, xylenols, a solution of phenol in a cresol, or a mixture of phenols and tetrachloroethane or monochlorobenzene; (b) in the form of a dispersion in a non-solvent, e.g. a petroleum hydrocarbon; (c) in a latent-solvent which develops solvent properties only at elevated temperatures; or (d) from a melt, e.g. by extrusion of the melted copolyester, if desired together with a solvent.  The copolyesters form compositions with polyamides, alkyds, phenol formaldehyde condensates, urea- and melamine-formaldehyde condensates which may be alkylated, polyvinyl acetals, shellac, wood flour, paper, asbestos, mica, glass and fire retardants, e.g. halo-hydrocarbons. The copolyesters may be modified by heating with lightly condensed phenol-formaldehyde condensates, dimethylol urea, hexamethylol melamine, dimethylol urea dibutyl ether, or hexamethylol melamine hexamethyl ether, if desired in presence of maleic acid, phthalic anhydride, ammonium hydrogen phosphate, styrene dichloride, a bromonaphthol or 2 : 4-dichloro-1-naphthol. The copolyester insulation may be applied directly to the surface of the conductor or over another insulating covering, e.g. polyvinyl acetal.  In examples: (1) dimethyl terephthalate and ethylene glycol are heated in presence of litharge and the product heated with adipic acid.  The copolyester by itself and in combination with hexamethylol melamine hexamethyl ether is dissolved in cresol and used for insulating copper; (2), (3) and (4) dimethyl terephthalate and ethylene glycol are heated in presence of litharge and the products heated respectively with sebacic, glutaric and succinic acids.  The invention of Specification 650,358 is disclaimed.
Patent GB-298675-A (GB)
Title: Improvements in apparatus for the extraction of oils, fats or the like from substances containing the same
IPC: C11B1/10
Filed: 1927-07-15
Abstract: 298,675. Bradshaw, G. W., and Jackson, E. R. July 15, 1927. Fats and fatty oils, extracting by solvents.- Apparatus for extracting oil or fat from fish meal, linseed, vegetable matter and the like by means of benzine, petrol, or other solvent, comprises percolators or extractors 1 arranged above a residual-solvent recovery vessel 7 with which the percolator communicates by a passage 6, controned by a valve 3, thus allowing the solvent with the oil extracted to drain away while retaining the raw material in the extractor, but afterwards permitting the discharge of the residual material or sludge into the vessel 7. The valve 3, which may be perforated or solid, comprises a flat plate or hollow flat casing with a detachable perforated top 3a, adapted to slide in guides 4, and may be withdrawn longitudinally into a casing 2 by a rod 9. A circular delivery outlet 5 for the percolator, and an inlet passage 6 to the lower vessel 7 extend into the casing 2, their opposing edges approaching a distance corresponding to the depth of the valve 3, which is made a close fit between them-the upper edge of passage 6 being the valve seating. This sets up a scraping action in use, which effectively clears the valve face and seating from any sludge. Preferably the valve itself is rectangular and the mouth of the passage 6 is circular, while the lower face of the valve 3 is arranged to make a metal to metal joint with the top edge of the passage 6, the contacting faces being machined. and the joint is effectively sealed by the vacuum set up in the vessel 7 when the valve is closed. After the residual material has been allowed to pass into the vessel 7, and the valve 3 has been closed, any further solvent which may percolate through the sludge above, into the interior of the valve through the perforations passes via the out. let 3b into the casing 2, and is led away bv the drain pipe 9a to a receiver for spent solvent or the like. To prevent any solvent, other than that carried away by the sludge, entering the recovery vessel 7 the mouth of the passage 6 is raised above the floor of the valve casing 2, as shown, forming a well into which the solvent containing the extracted oils passes from the usual outlets in the percolator and the outlet 3b in the slide valve. Means are provided for cleaning and repairing the apparatus, such as cleaning doors or plates 10 and 11 and in order to prevent clogging of the perforations in the plate 3a, means for blowing steam through the apparatus also may be provided.
Patent GB-1304634-A (GB)
IPC: B60K17/36
Filed: 1971-06-03
Abstract: 1304634 Tandem axle drives BOISE CASCADE CORP 3 June 1971 [9 Dec 1970] 18795/71 Heading B7H [Also in Division F2] A vehicle tandem axle drive comprises first and second differentials driving the rear-rear wheels and the rear wheels respectively, and an interaxle differential the input of which is connected to the drive-shaft and the two outputs of which are connected through positive clutch means to the first and second differentials respectively so that if one of their outputs tends to overrun the clutch means disconnect the drive thereto. A drive flange 46 drives an input shaft 78 of an interaxle differential and through clutch means therein a cross-shaft 42 which is connected to a drive-shaft 38 for a differential 26 driving the axles 28 of the rear-rear wheels and through other clutch means and transfer gearing 50 a power input pinion 52, Fig. 2, of a differential in a housing 44 driving the axles 54, 56 of the rear wheels. The clutch means comprise a sleeve 130 splined to the shaft 42 and sleeve 134 on a gear 80 of the transfer gearing 50 which sleeves are separated by a hub 136 splined to the input shaft 78. Splined to the hub 136 is a driving member 140, Fig. 4, in turn surrounded by a cam ring 148 having respectively radial clutch teeth 144, 160, 162 which are engaged under the force of springs 194, 196, by teeth 176, 178 and 172, 174 of clutch rings 164, 168. The rings 164, 168 have hold-out rings 184, 190 housed in annular grooves, and provided with axially extending lugs 188 which register with slots 154, Fig. 5, in a centre portion 152 of the cam-ring 148 when the clutch is engaged but when either sleeve 130, 134 overruns cam teeth 160 or 162 ride over teeth 172 or 174 causing teeth 176 or 178 to disengage from teeth 144 and the holdout ring 184 or 190 moves out of registry with the slot 154 to prevent re-engagement of the teeth 172 or 174 with the teeth 144. When overriding stops the holdout ring will again move into registry with the slot 154 since a snap-ring provides frictional drive between the ring and the clutch elements allowing the clutch to re-engage. The frictional drive ensures that all elements rotate continuously thus maintaining lubrication. A modified clutch mechanism is shown described in Figs. 8, 9 (not shown).
Patent GB-971347-A (GB)
Title: Code responsive systems
IPC: B65G47/48
Filed: 1962-05-16
Abstract: 971,347. Coded control of rollerway conveyers. BROOKHIRST IGRANIC Ltd. May 16, 1962 [May 25, 1961], No. 18837/62. Heading B8A. A tray 12 (Fig. 1) carries a coded card 16 and, as the tray is conveyed by rollerway 2 past code reader 14 the reader 14 detects the code, the resultant signal being amplified and stored. If the tray is to be diverted to rollerway 4, the circuit is completed when the tray engages and operates switch LS 1 to cause diverter 8 to deflect the tray on to said rollerway, but if the tray is to be diverted to rollerway 6 the circuit is completed when the tray reaches and operates switch LS2 to cause diverter 10 to deflect it accordingly. Electric circuit of code reader 14 for conveyer 4 (Fig. 2).-A proximity probe PP is provided having a transistor T4. When a correctlycoded tray passes probe PP, the latter contacts conducting material on the tray and the transistor is rendered non-conducting. This signal is amplified by the amplifier circuit AMP of transistor T5 and the amplified signal operates relay LVR. The relay LVR operates its switch 2 to operate and sustain relay CR which acts to store the signal. When the tray reaches and engages switch LS1 relay DCB operates and causes diverter DIV to operate to divert the tray on to conveyer 4. Counter CTR and conveyer motor BCM are also actuated and when the tray engages switch LS3 on conveyer 4 the complete circuit is restored to normal. A similar circuit is provided for the operation of diverter 10 and of conveyer 6. Two such probes may be employed and they may include a third probe common to the other two probes.
Patent GB-815997-A (GB)
Title: Improvements in the production of moulded articles, jackets, coverings and the like of porous resins, the surface of which is reinforced by a porous fabric
IPC: B29C44/14
Filed: 1956-06-20
Abstract: Thermosetting resin, previously foamed, is introduced into a moulding space confined wholly or partly by porous fabric and is cured therein to form, either a moulded article with a fabric covering or an insulation covering on a surface.  Cushions are made by forcing the foamed resin into a fabric mould, through an opening for the purpose or through the fabric itself.  Articles, already packed or not, may be previously introduced so that they become encased in porous resin with a fabric shell. (see Group XVII).  Plates are made (see Group VIII) by spraying the foamed resin between two spaced moving fabric webs.  Flat surfaces are insulated (see Group X), either by covering the surface with fabric and spraying foamed resin so that it passes through the fabric and lifts it off the surface or by stretching the fabric at a distance from the surface and introducing foamed resin through an opening or spraying it through the fabric.  Pipes are insulated (see Group XXVIII) by surrounding the pipe with a fabric hose to leave an annular space and spraying or otherwise introducing resin into the space.  A suitable resin solution is an aqueous solution of a urea-formaldehyde condensation product, containing a wetting agent and an acid catalyst for the curing reaction, which has been foamed up by air or other neutral gas.  Suitable materials for the porous fabric are jute, glass or synthetic resin fibre, paper, or wire.  The resin is cured either at room temperature or by the application of heat.  Where suitable an outer covering may be added e.g. of gypsum, cement, sheet metal, roofing paper or plastic foil.
Patent GB-890731-A (GB)
Title: Improvements in and relating to artificial teeth
Inventor: GOTLIB ABRAHAM
IPC: A61K6/884
Filed: 1958-06-13
Abstract: A composition suitable for use in the production of artificial teeth comprises a siliceous-plastic agglomerate made of a mixture of siliceous fibres, particularly crystal glass, having diameters of 25 to 200 microns, the fibres being broken into fragments of a length from 1 to 4 mm., but without very small dust-like fragments, and globules comprising a synthetic resin, which globules may comprise only a thermoplastic resin or may have siliceous cores, e.g. of small particles of glass or quartz, completely surrounded by resin.  The compositions may be made by mixing the fibres and synthetic resin globules, particularly globules of polymethyl methacrylate, and heating in a mould or by using as resin a suitable polyester in solution in styrene with or without a small proportion of methyl methacrylate, polymerization of the monomer and formation of the composition being carried out by heating in a mould, the polymerization step being effected at a suitable temperature without the application of pressure, and the final product then obtained by use of a higher temperature and a pressure of 150 to 250 kg. per sq. cm.  Artificial teeth made by using the composition may contain several layers of different composition, the outer layer, of which may contain no fibres.ALSO:Artificial teeth are moulded by a process in which at least the parts which support the biting and masticating stresses are made from a composition which comprises a siliceous-plastic agglomerate made of a mixture of siliceous fibres, particularly crystal glass, having diameters of 25 to 200 microns, the fibres being broken into fragments of a length from 1 to 4 mm., but without very small p  dust like fragments, and globules comprising a synthetic resin, which globules may comprise only a thermoplastic resin or may have siliceous cones, e.g. of small particles of glass or quartz, completely surrounded by resin.  The fibres and synthetic resin globules, particularly polymethyl methacrylate globules, may be mixed dry and moulded under heat and pressure, or there may be used as resin a polyester in solution in styrene, with or without a small proportion of methyl methacrylate, polymerization of the monomer and formation of the composition being carried out by heating in a mould, the polymerization step being effected at a suitable temperature without the application of pressure and the final product then obtained by use of a higher temperature and a pressure of 150 to 250 kg. per sq. cm.  The agglomerate may be arranged in a plurality of superposed layers of different colours and may be covered with a layer of resin which contains no fibres.
Patent GB-422132-A (GB)
Title: Improvements in or relating to razor stropping and honing apparatus
IPC: B24D15/08
Filed: 1933-07-06
Abstract: 422,132. Sharpening razors. TASHO, E., 8, Montpelier Road, Brighton. July 6, 1933, No. 19210. [Class 60] Apparatus for sharpening razor blades 1 consists of a blade holder 2 detachably mounted by a pin 3 and a dovetail 4 and groove 5 on a spindle 6 carried by side lugs 7 of a slide 8 movable along rods 9 in a frame 13. A strop, or a hone, 14<a> is mounted in a holder 14 slidable on transverse rods 15, and in the undersurface of the slide 8 is a cam groove 16 engaged by a pin or roller 17 on the holder 14. The spindle 6 has thereon rollers 10 engaged by spring-pressed strips 11 mounted in side cases 12 of the frame 13, and the spindle is reciprocated by a forked handle 20 engaging the spindle ; in a modification, the handle is attached to the slide 8. In operation, as the slide is reciprocated along the frame, the cam groove causes the strop to move transversely, the rollers 10 and the cam groove being so proportioned that the blade is stropped during the second half of each stroke thereof in the same oblique direction on both sides of the cutting-edge. The cam groove may be modified to give a stroke in a direction perpendicular to the blade edge at the beginning and end of the stropping portions of the stroke. When employed for honing blades, the apparatus has the strips 11 to engage beneath the rollers 10, so that the blade is pushed edge first along the hone. In a modification the blade-holder has channel shaped clips to engage the spindle 6.
Patent GB-638848-A (GB)
Title: Improvements connected with folding stools
IPC: A61G1/01
Filed: 1948-07-19
Abstract: 638,848. Furniture combinations. SHARMAN, H. W. July 19, 1948, No. 19265. [Class 52 (iii)] A stool which is foldable to serve as a container for articles comprises two tray-like parts 1, 2 to serve as supports and interconnected by a lazy tong linkage 6, 7 and a flexible seat 16. The links 6, 7 are pivoted at their ends to strip members 11, 12 and reinforcing members 13, 14 secured to the sides of the parts 1, 2 the links 6, 7 being pivoted together at their intersection 8 and also provided with pivoted joints 9, 10. A strut 15 is provided to retain the stool in operative position and a fastening 18, 19 is provided for securing the container in closed position. Handles 20, 21 are provided.
Patent GB-147212-A (GB)
Title: Improvements in and relating to liquid-raising apparatus
IPC: F02B1/00
Filed: 1920-07-07
Abstract: 147,212. Jay, W. May 10, 1917, [Convention date]. Actuating by air pressure; spring-actuated pumps; regulating delivery by admission of air; regulating delivery by stop valves; delivery reservoirs; valves, arrangement of.-Apparatus for raising liquid, such as fuel for internal-combustion engines, comprises a pump L of which the piston K is rigidly connected to a piston B in a cylinder A. The piston B is pressed downwards by a spring H and is raised by suction. At the top of its stroke the piston engages an adjustable nut d<2> on the stem of a valve D and opens the valve, the opening being completed by a snapaction spring G connected to a lever E pivoted in a slot in the valve stem. The opening of the valve D admits atmospheric pressure to the chamber A, and' the spring H then returns the piston. At the end of the down-stroke, the piston engages a nut d<3> and closes the valve D so that vacuum is re-established in the chamber stricted chambers. In another form, the suction A through the suction port A<1>. The pump valves port is controlled by a valve, and both suction M', M<2> are light metal disks lying loosely in re- and atmospheric valves are arranged in the top of the chamber B and actuated by a lever provided with a snap-action spring and engaged by a rod carrying collars d<2>, d'. In another form, the piston B is an easy fit and carries a skirt depending into a liquid seal in an annular chamber in the bottom of the chamber A. The suction port is controlled by a valve actuated by the rise and fall of the piston as described above, and the chamber A is permanently open to atmosphere through a small port. The pump delivers to the carburettor and to a reserve chamber R containing a float Z which closes an atmospheric valve W when the liquid reaches a certain level. In another form of reserve chamber, a lift valve on the inlet pipe is closed by a float through a snap-action lever.
Patent GB-836859-A (GB)
Title: Improvements in roller assemblies for the pressure treatment of materials
IPC: D06B15/02
Filed: 1958-06-17
Abstract: 836,859. Embossing. KUSTERS, E. June 17, 1958, No. 19293/58. Class 100(2) [Also in Group XXIX] A pressure roller 1, Fig. 1, for smoothing and embossing paper and other materials, has the whole of its length disposed in a trough-like container 8 in which a pressure liquid acts on the surface of the roller remote from a coacting roller or surface 2, the roller having means 12 preventing transverse movement thereof and means 4 for sealing its periphery and ends, whereby the roller will exercise a uniform pressure throughout its length on the material between itself and the coacting roller or surface 2. The pressure liquid extends up to the longitudinal axis of the roller which may or may not have journals mounted in bearings movable in a vertical slide. The sealing means 4, which are secured to the container by members 10 and are of elastic or resilient material, have a lip 5 provided with a portion 11 of synthetic or other suitable sealing material conforming to the contour of the roller and pressed against the roller, by the liquid. The roller is supported against transverse movement by perforated bridgepieces 12 formed on the sealing means 4 or the container. In other arrangements, the portion 11 may be carried by a resilient member 44, Fig. 4a, movable by the pressure liquid in a guide 45 or the sealing means may be formed with an upwardly extending lip 36, Fig. 9a, which is pressed against the roller by an inflatable member 43 or a strip of resilient material, such as bronze. The ends of the roller may be rounded and the sealing means continue around the ends, or the ends may be sealed by plates 6, Fig. 1, urged against the ends of the roller and sealing means 4 by springs in flexible bellows, the plates having sealing strips between themselves and the inner ends of the container. The container 8 may be vertically adjustable by means of an eccentric device and may be formed above a second container in which is liquid connected to the liquid in the container by a pipe and a space connected to a source of air to pressurize the liquid. Alternatively, the liquid in the container 8 may be pressurized by an inflatable casing 13. In another arrangement, the container is of shallow, semicircular construction, and transverse movement of the roller is prevented by a strip carried on an arm secured to the container. A slight gap may be permitted between the sealing means and the roller and liquid leaking therethrough is returned to a collecting member and pump to the container.
Patent GB-653968-A (GB)
Title: Method of and means for manufacturing tubular containers of plastic materials
IPC: B29C48/09
Filed: 1948-07-19
Abstract: 653,968. Collapsable tubes. BRUNET, C. C. Q. July 23, 1948, No. 19821. [Class date, July 26, 1947. [Class 66] [Also in Groups V and VIII] A tubular container 15 moulded from plastic material (see Group V), and the bottom end of which is closed by welding (see Group VIII), may be polygonal in crosssection. and the bottom end may have the shape shown at 32.