baber/WOPTO huggingface dataset:
Patent GB-986817-A (GB)
Title: Improvements in or relating to a locking differential
Inventor: O'BRIEN LOREN JAMES
Filed: 1962-02-26
Abstract: 986,817. Differential gear. DANA CORPORATION. Feb. 26, 1962, No. 7502/62. Heading F2D. In a limited-slip bevel differential gear in a motor vehicle, the usual side wheels 19, 20 transmit drive torque through drive members 23, 29 connected to the axle shafts 17, and bi-directional facial cam teeth 27 drivingly coupling the side wheels 20 to the drive member 29 actuate, in response to driving torque, a friction clutch 34, 35 which is arranged, independently of the differential cage 10, between the drive members. The drive member 29 is connected to its axle shaft through splines 31, a freely rotatable sleeve 30, splines 33, and a member 32. The other side wheel, 19, is splined directly on its respective drive member 23. The friction clutch comprises interleaved friction plates 34, 35 respectively splined on the sleeve 30 and the drive member 23. The axial clutch thrust is taken by snap rings 55, 57 respectively abutting the friction plates and the side wheel 19. A further snap ring 53 prevents clutching action by the member 32.
Patent GB-493822-A (GB)
Title: High frequency electrical signalling systems
IPC: A01F12/44
Filed: 1938-03-11
Abstract: 493,822. High-frequency transmission systems. LORENZ AKT.-GES., C. March 11, 1938, No. 7646. Convention date, March 12, 1937. Drawings to Specification. [Class 40 (iv)] The frequency range carried by a phantom on high-frequency lines is higher than that capable of being carried by the side circuits.
Patent GB-343771-A (GB)
Title: Improvements relating to vibration dampers for cycle frames
IPC: B62K21/20
Filed: 1930-03-10
Abstract: 343,771. Cycle steering-mechanism. WEBB & CO., Ltd., H. C. and TAYLOR, F. W., Tame Road, Witton, Birmingham. March 10, 1930, No. 7714. [Class 136 (i).] A steering-damper of the friction-disc type for motor and other cycles comprises a number of discs d .. h, of which the disc d is formed integrally with a crosshead c at the lower end of the steering-tube a, while the other discs are carried on the end of the steering-tube a, which projects through the crosshead. The pressure on the discs is regulated by means of a stem m having at its upper end a regulating-lever n. The stem m is connected by a screw thread m<1>, or by a pin and inclined slot, to a sliding bush j adapted to press a spring washer k against the lowermost disc g, the washer k being held in position by a screw plug l. The disc h is fixed by means of an arm i to the cycle frame. The bottom disc g is provided with lateral extensions formed with holes to receive depending projections on the crosshead c, the heads of screws inserted in the projections serving to hold the disc g in position on dismantling the washer k. The handle n is clamped on the coned upper end of the stem m, and is held in adjusted position by a spring catch o adapted to engage notches p in a cap q.
Patent GB-893946-A (GB)
Title: Improvements in or relating to the removal of contaminants from aqueous ammonia
IPC: C07C7/10
Filed: 1960-03-04
Abstract: Aqueous ammonia is contacted with a liquefied C3-C5 paraffin or olefin to extract contaminants comprising acetylenes, carbonyls and reaction products thereof.  Butadiene is the preferred extractant. The weight ratio of ammoniacal solution to hydrocarbon may be from 1:1 to 1:4 and temperatures of 27 DEG -55 DEG  C. may be used.ALSO:In the separation of acetylenes from a hydrocarbon mixture containing a diolefin, e.g. butadiene by contact with a cuprous ammonium salt solvent, the acetylenes are stripped from the solvent, washed with water to recover ammonia and the resultant aqueous ammonia is contacted with a liquified C3-C5 olefinic or paraffinic hydrocarbon to extract contaminants, such as acetylenes, carbonyls and reaction products thereof before stripping the ammonia from the water.  The light hydrocarbon may particularly be butadiene.  The ratio of ammoniacal wash water to hydrocarbon may be from 1 : 1 to 1 : 4 by weight at 27 DEG C.-55 DEG C.
Patent GB-550139-A (GB)
Title: Improvements in or relating to the conforming of shoe uppers to lasts
IPC: A43D13/00
Filed: 1941-06-21
Abstract: 550,139. Sewing-machines; shoes. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). June 21, 1941. No. 7846. [Classes 17 (ii) and 112] The upper 4, of an outwardly-turned upper type of shoe is secured to the margin of an unchannelled sole piece 6, which may be of canvas, by stitches which draw the upper close to the last as they are tightened. The cloth lining 13 of the upper may be stuck down on to the insole 14 prior to the stitching. The stitching is arranged to bring the crease of the upper on to the tread surface of the last. The margin of the cloth lining may be turned outwardly with the upper and a welt may be added. The machine is similar to that described in Specification 392,580 and is shown in Fig. 6 equipped with a welt-guide. The feed wheels 64, 65 and the work guides are arranged to cause the materials to gape towards the last and as the stitches are tightened, the gaping portions are brought together and the upper, thereby, tightened on the last.
Patent GB-877209-A (GB)
Title: Improvements in or relating to web feeding mechanism
Inventor: CHALMERS DAVID ARTHUR
IPC: G11B15/56
Filed: 1957-03-09
Abstract: 877,209. Control of several motors; actuation of switches. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 27, 1958 [March 9, 1957], No. 7861/57. Classes 38 (3) and 38 (5). [Also in Groups XVI and XXXVIII] The subject-matter of this Specification is substantially the same as that described in Specification 877,210, but is especially concerned with an electric direction-responsive switch 34, the operation of which ensures that the tape is held taut during deceleration, between the respective supply rolls and capstan rollers associated therewith. The switch is caused to open whenever the capstan roller associated with one of the supply spools, is rotated by the pull of the tape in a direction opposite to that in which the capstan is driven by its driving motor 27. Opening of the switch 34 causes de-energization of an electric motor, not shown, driving the associated supply spool, thereby permitting the capstan roller to rotate in its normal direction until the switch 34 is again closed. The switch 34 is included in the circuit to the motor driving the supply spool. Thus, when the switch is opened the supply spool motor is de-energized, but is closed again when the capstan roller rotates in its normal direction of rotation, thereby re-energizing the supply spool motor. The switch 34 is a mercury switch mounted on a plate 35a pivotally mounted at 36 on the motor 27. The plate 35a has a fork 37 engaging an eccentric 38 mounted on the shaft 39 of the motor 27. The eccentric 38 is driven by the shaft 39 through a friction coupling so that when the shaft is rotating in one direction the plate 35a is tilted against a stop during continued rotation of the shaft. When the direction of rotation of the motor is reversed, by the reverse pull of the tape, the plate is tilted back into engagement with a further stop.
Patent GB-127805-A (GB)
Title: An Improved Method of Producing an Intimate Mixture of Liquids or of Causing the Reaction of a Liquid on a Pulverulent Substance.
Inventor: ALFRED MALLET
IPC: B01F33/40
Filed: 1919-03-28
Abstract: 127,805. Mallet, P. A. June 3, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Jet apparatus.-The air or inert gas under pressure employed as agitating-means in the mixing of two liquids, or in the reaction between a liquid and a solid, is made to operate in a closed cycle, whereby loss by evaporation is reduced, for instance in the treatment of hydrocarbons with sulphuric acid or soda.
Patent GB-472051-A (GB)
Title: Improvements in or relating to artificial threads and their production
IPC: C08F10/00
Filed: 1936-03-16
Abstract: Artificial threads are obtained by extruding or drawing a solid ethylene polymer in fluid form under such conditions that the material solidifies immediately it becomes attenuated.  The material to be spun may be in molten form or in the form of a hot concentrated solution in a volatile organic solvent, e.g. benzene. The ethylene polymer preferably has a molecular weight of over 6,000.  The strength of the threads may be increased by stretching them in the cold condition, in the form of a bundle or hank, for example, to about five times their original length.  The threads may be woven into fabrics, or may be cut into staple fibres, twisted and pulled into yarn or twist, and then woven. Specification 471,590 is referred to.
Patent GB-165166-A (GB)
Title: A metal scavenging alloy and process of making and using the same
IPC: C22C43/00
Filed: 1920-03-17
Abstract: 165,166. Haddan, R., (Light Metals Co.). March 17, 1920. Alloys.-A process of preparing a metal scavenging alloy consists in preparing an alloy of uranium and aluminium and adding the cooled solidified alloy to a molten bath of aluminium and magnesium. Such an alloy, suitable for use in the casting of open-hearth basic steel, is obtained by adding aluminium to a molten ferro-uranium alloy, containing 25 to 45 per cent of uraninum, or uranium oxide, in the proportion of about 11 parts of uranium to 100 parts of aluminium. The uraniumaluminium alloy formed is cast in bars and added to a molten bath of aluminium and magnesium in the proportion of 150 parts of alloy to 44,000 parts of aluminium and 3170 parts of magnesium, and the resultant alloy is cast. In one example, the composition of the alloy is given as magnesium 6.70, copper 0.25, iron 0.35, silicon 0.30, alumnium 92.40 parts and uranium a trace. From one to two parts of alloy are added to 4000 parts of molten steel, a light grey slag separating from the metal. The proportion of magnesium in the alloy may be increased to 15 per cent and the proportions of uranium and aluminium, varied.
Patent GB-1069508-A (GB)
Title: Gas turbine engine bladed rotors
IPC: F01D5/18
Filed: 1966-02-24
Abstract: 1,069,508. Gas turbine engine blades. GENERAL MOTORS CORPORATION. Feb. 24, 1966 [March 12, 1965], No. 8116/66. Heading FIT. A two tier blade for a gas turbine engine comprises a radially extending central spar 20 having a dovetail root 22 attached to the rotor, a first sheet metal aerofoil portion 30 surrounding the spar 20 to form a turbine blade, a hollow shroud segment 38, and a second sheet metal aerofoil portion 96 surrounding the radially outer portion of the spar to form a fan blade. The spar has flutes (34), Fig. 4 (not shown), over a tapered portion 31 to provide cooling passages for air supplied through apertures 36 in a platform 26 from a cooling air chamber 27. The shroud segment 38 is formed as a built up boxlike structure through which an I-section portion 32 of spar 20 passes by means of apertures (46, 60) in the top and bottom pieces (40, 42) of the segment, Figs. 3, 7 (not shown). The interior (90), Fig. 3, of the shroud segment receives cooling air from the interior 35 of the turbine blade 30 through passages (92). The air exhausts through a port (76) in the downstream end wall (70) of the segment. The upstream and downstream end walls of the segment are offset circumferentially with respect to the top and bottom pieces (40, 42), Fig. 7, to reduce gas leakage in an axial direction. Circumferentially adjacent blades on the rotor are not connected but the overlapping portions of adjacent shroud segments, Fig. 6 (not shown), frictionally engage to effect vibration damping during operation.
Patent GB-1380762-A (GB)
Title: Protective sheath for flexible shafts
IPC: F16C1/26
Filed: 1972-02-22
Abstract: 1380762 Flexible shafts; flexible conduits F KIRCHNER and A KIRCHNER [trading as FRANKISCHE ISOLIERROHR-U METALLWAREN-WERKE GEBR KIRCHNER] 22 Feb 1972 [25 Nov 1971] 8124/72 Headings F2U F2K and F2P A flexible plastics (polyvinyl chloride), protective sheath for a speedometer flexible shaft is formed with annular 2 or helical and/or axial 4 hollow ribs arranged internally and externally on a thin-walled tubular jacket 3.
Patent GB-115856-A (GB)
Title: Improvements in or relating to Agricultural Tractors.
IPC: B62D49/06
Filed: 1918-05-15
Abstract: 115,856. Etablissements de Dion- Bouton, Soc. Anon. April 17, 1917. [Convention date]. Void [Published under Sect. 91 of the Act]. Winding and paying-out apparatus on motor vehicles; drum or barrel winding-machines; driving- gear; brakes; laying cables on during winding.-Relates to an agricultural tractor provided with a twospeed gear and a winding drum with a rope-laying device, the drum being driven from the propeller shaft of the tractor and adapted in conjunction with a corresponding drum on a second tractor to haul a plough across a field. As shown in plan in Fig. 3, the tractor is provided with an epicyclic clutch 8 between the engine shaft and the propeller shaft 16 and which, when the drum 13 of the clutch is braked, causes the propeller shaft to rotate at a lower speed than the engine shaft. The winding drum 55 is concentrically arranged on the propeller shaft and is driven from it through a pinion 47 on the shaft, epicyclic gearing 48, sleeve 51, tubular shaft 52, and dog clutch 56. The brake drum 50 of the epicyclic gearing 48 is provided with a cable 58, Fig. 5, fixed at one end to the chassis and at the other end to a ratchet operating lever 61, and the cable is enclosed in a copper tube 65 to prevent undue heating. The braking of the drum can be graduated by the setting of the ratchet lever, thus allowing the winding drum to slip when starting or when an obstacle is encountered. The wheels of the epicyclic gearing 48 can be changed for others of a different ratio to obtain a winding speed adapted to the hardness of the ground to be tilled. The automatic rope-laying device is shown in Figs. 6 and 8, the rope' 67 passing to the drum 55 through guide rollers 68 mounted on a carriage 72 having rollers 73 running on rails 74 supported from the chassis. The carriage is traversed and reversed by means of gearing driven from an annular wheel 76 on the drum, pinion 77, shaft 78, sprocket gearing 80, 81, shaft 83, gear-box 84, and screwed spindle 92. The sprocket wheel 81 is splined on its axially traversable shaft 83 which passes through the gear-box and carries pinions 85, 86, of which the pinion 85 engages the pinion 87 forming the nut for the screwed shaft and traverses the carriage in one direction, and the pinion 86 through an idle wheel 88 and pinion 89 moves the carriage in the reverse direction. The reversal of the gear-box and carriage is effected by stops 93 and 94 on the screwed shaft engaging spring 95, 96 on the ends of the sliding shaft 83 and so moving it and its gear wheels 85, 86 to their respective positions, the change over being assisted by a counterbalance weight 97 operating between stops 99.
Patent GB-1269651-A (GB)
Title: Boiler systems for producing steam
Inventor: CHARCHAROS ANTHREAS NICHOLAS
IPC: F22B1/18
Filed: 1969-02-14
Abstract: 1,269,651. Boiler systems. BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd. 13 Feb., 1970 [14 Feb., 1969], No. 8202/69. Heading F4A. A boiler system includes a casing 1 containing an economizer 2, evaporator 3 and superheater 4, and an external drum 7 receiving water and steam from the evaporator and delivering steam to the superheater and water, via a pump 17, to a mixing vessel 18 wherein it is mixed with water from a boiler feed line 19, and supplied to the economizer. The casing 1 is inserted in a vertical hole 23 in the pressure vessel wall 24 of a nuclear reactor, and has an inlet 5 and outlet 6 for coolant gas which flows downwardly in the reactor core and upwardly in the casing 1. Feed water is pumped by a feed pump 21 to the mixing vessel 18 through the line 19 which has a connection 25 leading through an injector 26 into the steam drum 7. Feed water flow through the connection 25 is controlled by a valve 27 responsive to level sensors 29 so as to maintain the water level in the drum 7 within predetermined limits. Normally the superheater, which may have austenitic stainless steel parts, supplies steam to a steam turbine through line 14, but, during start-up and shut-down, it can be isolated by valves 11, 15, and steam can be dumped through a line 12, 13.
Patent GB-961732-A (GB)
Title: Automatic adjusting device for disc brakes
IPC: F16D65/74
Filed: 1962-03-02
Abstract: 961,732. Fluid-pressure brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINENUND ARMATURENFABRIK KOMM.-GES.]. March 2, 1962 [April 26, 1961], No. 8211/62. Heading F2F. An automatic adjusting device for an hydraulically operated disc brake having a pair of pad-applying cylinders on opposite sides of the disc which are hydraulically connected by a bridging pipe, comprises a casing 1 having an inlet 2 from a master cylinder and an outlet 3 to the bridging pipe, a hollow piston 8 having ribs 9 slidable in a bore 10 of the casing, a floating piston 14 slidable within the hollow piston and controlling the volume of a compensating chamber 16 communicating via passages 15 with the outlet 3, a valve opening 21 adapted to be closed by the hollow piston 8 in its normal position, and a spring 12, arranged in a bore 7 sealed from the chamber 16 by a seal 13 on the piston 8, for urging piston 8 to its normal position. The opening 21 is formed in a disc 18 of resilient material backed by a plate 19 which is acted on by a relatively strong spring 20 to engage the disc 18 with a shoulder 17 of the casing. When the brake is applied piston 14 moves towards the chain-line position to take up clearance and increase pressure until, at a predetermined pressure spring 12 is compressed and piston 8 moves to allow fluid to pass directly between the disc 18 and the adjacent end of piston 8 and past the ribs 9 to the cylinders. On release of the brake the piston reengages disc 18 at the predetermined pressure and subsequently piston 14 returns to the fullline position to establish the desired clearance or, if rubbing contact of the pads is desired, the residual pressure in chamber 16. In the latter event, the brake may tend to snatch due to vibration which affects both pads owing to the bridging pipe. If this occurs the spring 20 is compressed so that pressure in the chamber 16 is relieved by fluid being enabled to pass between the shoulder 17 and the disc 18.
Patent GB-834298-A (GB)
Title: Improvements in or relating to upholstery material
Inventor: HILL ALAN CHARLES
IPC: A47C7/18
Filed: 1957-03-13
Abstract: 834,298. Upholstery. PRESSED STEEL CO. Ltd. June 4, 1958 [March 13, 1957], No. 8231/57. Drawings to Specification. Class 52(4) [Also in Group VIII] Upholstery material comprises a fabric backing layer, a first facing layer of a supported synthetic plastic material, with s. padding layer interposed between the backing layer and the first facing layer and a second facing layer of unsupported synthetic plastic material extending over the whole or part of the area of the first facing layer, the layers being joined together along prescribed lines by the application of heat and pressure. A further padding layer may be interposed between the first and second facing layers. The margins of the second facing layer may be covered with welded-on beading. When the second facing layer covers only part of the area of the first, they may be of different colours. The padding layer or layers may be of resilient foam material, and the layers may be welded together by pressing between heated dies. The material may be used to upholster vehicle seats. According to the Provisional Specification, upholstery material comprises a fabric backing layer, a padding layer and'an unsupported facing layer, with or without an intermediate fabric layer and a further padding layer, the layers being joined together along prescribed lines by the application of heat and pressure. The margins of the facing layer may be covered by a welded-on beading.
Patent GB-828135-A (GB)
Title: The anchoring of reinforcing wires in stressed concrete articles
IPC: B28B21/92
Filed: 1958-03-14
Abstract: 828,135. Prestressed concrete. HUME PIPE CO. (SOUTH AFRICA) Ltd. March 14, 1958 [July 1, 1957], No. 8308/58. Class 20(4) [Also in Group XXVIII] The reinforcing wire wrapping of a stressed concrete article is anchored by means having an anchoring formation, a sole 10 which may be flat or curved, adapted to be overlain by several turns of wire, and an end flange 12 adapted to be located between adjacent wire coils. As shown, the anchor 8 is embedded in a recess in the pipe 16 and one end 18 of the wire is clamped in the eye 14 of the anchor by a split wedge 20; the other end of the wire is passed through a longitudinal slot in the eye 26 of the anchor 24 and secured by a split clamp 32.
Patent GB-1055924-A (GB)
Title: Thin load supporting polyurethane foam and method of making same
IPC: B29C39/20
Filed: 1964-02-28
Abstract: A process of making a load-supporting article having shaped portions of foam of non-uniform height which portions have an integral, nonfoamed, solid, resilient polyurethane skin on the surface thereof, with a generally arch-shaped cross-section, comprises applying a liquid polyurethane forming composition, which is adapted to react and foam when contacted with water or water vapour, to a backing member having one or more depressed portions, passing the combined structure through a humidified zone at 100 DEG  to 200 DEG  F. to cause initial reaction at the exposed surface of the liquid to form a steam-permeable, non-foamed polyurethane skin on the exposed surface and then causing reaction of and blowing of the remaining liquid to form flexible, resilient sponge-like polyurethane.  The polyurethane forming composition may comprise one or more polyols and one or more polyisocyanates in substantial excess of that required for reaction with the hydroxyl groups or a prepolymer of one or more polyols and one or more poly-isocyanates which prepolymer has isocyanate end groups or hydroxyl terminated end groups in which case additional polyisocyanate must be present in the liquid mixture, together with suitable catalysts.  In the examples, the polyurethane forming materials comprise a propylene oxide adduct of glycerol with an 80/20 mixture of toluene 2,4- and 2,6-diisocyaates with, in Example 4, a propylene oxide polymer having terminal amino groups.  Stannous octoate and lead naphthenate are the preferred catalysts whilst silicone oils and pigments such as whiting may also be added to the compositions.  The backing member may be stripped off after foaming or remain integrated with the foamed structure.