baber/WOPTO huggingface dataset:
Patent GB-612895-A (GB)
Title: Improvements relating to fluid pressure braking systems
IPC: B60T13/40
Filed: 1946-06-05
Abstract: 612,895. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and CADMAN, N. G. June 5, 1946, No. 17084. [Class 103 (i)] In an automatic brake system for a tractortrailer vehicle in which a brake pipe 6, 8 on the tractor is connected to a brake pipe 15 on the trailer, e.g. by a hose and coupling 16, an isolating cock 9 is connected in the pipe 6, 8 and is byepassed by a non-return valve 11 which permits flow of pressure fluid between the tractor and trailer in one direction only. The system shown comprises on the tractor a driver's valve 2 which operates to vent the pipe 6 and connect a main reservoir pipe 5 with the tractor brake cylinder. If the cock 9 is open, the pipes 8, 15 are also vented and a control valve 12 operates to connect a reservoir 13 on the trailer-with the trailer brake cylinders 14. On operation of the valve 2 to effect release of the brakes, the pipe 6 is connected to the pipe 5, and the valve 12 operates to vent the cylinders 14 and connect the reservoir 13 to the pipe 15 for recharging. If the cock 9 is closed to isolate the brakes on an empty trailer, the valve 11 allows pressure fluid to flow from the pipe 6 to the pipes 8, 15 to make up leakage losses in the trailer system so that maximum pressure is available from the reservoir 13 to .apply the trailer brakes if the coupling 16 breaks. The cock 9 and valve 11 may be combined in a single unit mounted in the driver's cab with the handle 10 in a convenient position. Specification 563,588 is referred to.
Patent GB-171587-A (GB)
Abstract: 171,587. Hardy & Co., Ltd., E. J., and Grew, W. F. Oct. 11, 1920. Side-car attachments. -A coupling for connecting side-cars to motor-cycles comprises two parts positively connected by a flexible disc. As shown, the coupling-stay is divided into two parts C, F which are cupped and flanged, as at D, E, G, for connection by bolts &c. to opposite faces of a disc B of thin metal, leather, or canvas and rubber fabric, stiffening-rings being provided as shown at H, J. The flanges E, G may be replaced by forks or star-pieces, and the flexible disc may be perforated in the centre. The various flexible connections are preferably so arranged that at the front and back slight vertical and horizontal relative motions respectively can take place between the side-car and the motor-cycle. According to the Provisional Specification, in the connection of the side-car to the machine at the point close to the rear-wheel axle there may be a ball or other bearing permitting the side-car frame to rock slightly about an axis parallel to the wheel axle.
Patent GB-476965-A (GB)
Title: Improvements in or relating to steam power installations for driving vehicles or ships
IPC: F01K3/08
Filed: 1936-06-19
Abstract: 476,965. Steam power plant. SULZER FRERES SOC. ANON. June 19, 1936, No. 17160. Convention date, July 3, 1935. [Class 122 (iii)] In a steam power plant for ships of the kind including one or more high pressure steam generators of small liquid capacity, at least one low pressure accumulator and one or more engines, a control device influences the input to the generator, the steam supply to the engine and the heat transferred to the accumulator to suit the condition of steaming at various speeds and also when the ship is stationary. A steam generator 1 of the single-tube type is provided with a burner 9 having a control 20 for its valve 13 and with a water inlet having a control 21 for its valve 14. There is an automatic control 22. for regulating steam temperature and an automatic control 27 for regulating pressure. The steam supplied normally passes by valve 18 to the power unit 3 and the exhaust therefrom through a pipe 33 condenser 34 and back to a hot well 37. The feed from the pump 38 passes through a water heater 49 to the inlet 7. The delivery pipe line is branched and one section has a valve 19 under a control 24 which leads through a pipe line 39 to a heat-exchanger 41 or accumulator 2. The accumulator 2 may have furnaces 65 for independent heating. A master hand control station 5 is provided wherein controls 51 and 52 act through hydraulic, pneumatic or like transmissions 53, 54, 55, 56, 57 upon the servo-controls 20, 21, 23, 24 and 63 and indicating pointers 58, 59, 62 are provided in connection therewith. the hand wheels act upon camshafts 67, 88, cams thereon acting under spring restraint upon plungers upon valves 75, 76, 77 and 93, 94 which control the pressure in the pipe lines 53-57 and thus the servo-controls. The supply and discharge pipes 78, 79 of the pressure system are provided with valves 83, 92 under similar cam control. When the hand wheel 51 is turned with the indicator 58 in its lowest position, the pressure in the pipes 53, 54, 55 is set so that the fuel valve 13 and feed water valve 14 are open for generation of a set minimum quantity of steam and the valve 19 open to byepass such steam to the heat-exchanger and accumulator 2. When main turbines are required, the hand wheel 57 is turned, the pressures in the control lines are altered so that valve-19 is closed and valve 18 is opened and since motion of the cam 89 produces motion of the cam-shaft 67, the fuel and feed valves are progressively opened with the valve 18.
Patent GB-1082780-A (GB)
Title: Improved screen line
IPC: B07B1/42
Filed: 1966-04-19
Abstract: 1,082,780. Vibratory screens. K. MULLER. April 19; 1966 [April 22, 1965], No. 17185/66. Heading B2H. [Also in Division F2] A screen line comprises vibrating screens a, b, c, Fig. 1, each having a base frame 3 and a screen frame 5 with a perforated bottom 8. A cross member 7, Fig. 5, is mounted on each screen frame transverse to the direction of flow of material over the screen line and storage springs are provided in two side plates on each base frame engaging the crossmember. The screen frames are coupled by members 21 which permit tilting of the frames at different angles to the horizontal. As described, an unbalanced pulley 6 is provided, on one of the screens, driven on a shaft 10 by a motor and belt 24, 25. The cross member is mounted by storage springs 4 in the side plates 11 of the base frame 3, so that it can be tilted by adjustment of bearing beds 15. Vibration of the perforated bottom 8 is superimposed on the resonance vibration of the base frame 3 and screen frame 5 by plate springs 9 whose number may be varied to adjust the vibrating properties. In operation, the drive shaft 10 is rotated and with it a disc 18 with cams 19 interacting with a cam 20 on the perforated bottom 8, so that the bottom undergoes a positive vibration whose frequency and amplitude is determined by the number and shape of the cams and the speed of the shaft. The common resonance vibration is provided by the unbalanced pulley 6. Alternatively separate drives may be provided.
Patent GB-353836-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H35/24
Filed: 1930-04-30
Abstract: 353,836. Electrically-operated valves. MILLS, T. A., Laurieston, Saltburn-by-Sea, and BOSANQUET, W. S. B., Gainford, Darlington. April 30, 1930, No. 17253/31. Divided on 353,948. [Class 135.] In apparatus for regulating gas pressure, a rod 2 which moves up and down in accordance with the variation of the pressure, carries a contact disc 8 which is adapted to come into bridging engagement with one or other of two pairs of gravity-controlled nearly-balanced contact arms 10, 11, thereby closing circuits to relays which operate an electric motor in one direction or other, the motor operating a valve controlling the supply of gas.
Patent GB-950642-A (GB)
Title: Apparatus for counting road vehicles into and out of a predetermined area
Inventor: COULTHARD STANLEY DAVID
IPC: G06M3/14
Filed: 1961-05-11
Abstract: 950,642. Counters. PARKING DEVELOPMENTS Ltd. May 30, 1962 [May 11, 1961], No. 17279/6 Heading G4D. As each car enters or leaves a parking area it decreases or increases, respectively, the indication on a first counter. When said first counter reaches zero a second counter begins to operate to indicate the number of cars in the area in excess of parking capacity. The invention is applicable to a multi-storey garage. As shown, relays A and D decrease the indicated count as cars cross treadles into an are while relays B and C increase the count. At capacity count, i.e. zero, R1 and R2 operate to bring the second counter into operation. The counters may be adjusted by switches 23-26.
Patent GB-499937-A (GB)
Title: Improvements in theatres
IPC: E04H3/22
Filed: 1938-06-10
Abstract: 499,937. Theatres. LIEHBURG, M. E. June 10, 1938, No. 17332. [Class 20 (i)] [Also in Group XV] A theatre comprises at least two stages at different levels, the ends of the stages forming projections which are connected to galleries running partially or wholly around the auditorium. A circular wall 4 is built to enclose the auditorium 2 and one stage 3, this stage and its immediate seating arrangements being separated from the main auditorium by a gangway 10 and being mounted on a rotatable platform whereby the position of the stage with respect to the main audience may be varied. Steps 11 are provided at the extremities of the gangway 10 to provide access between it and an outer audience gangway 9, and chorus seats 8 are disposed at the ends of this gangway in front of the supplementary stages. These supplementary stages 6, 7 are disposed at raised levels and steps are provided at each side of these stages to connect them with galleries 14, 16 which extend partially or wholly around the auditorium. All the stages may be arranged so that their levels are adjustable. A continuous ceiling 23 covers the whole of the stages and the auditorium. At the rear of the curved wall 13 of the stage 7 a dancehall 18 and a stage foundation 19 are provided, Fig. 3, and foyers 20, 21 are disposed between the auditorium wall 4 and the outer enclosure wall.
Patent GB-1443123-A (GB)
Title: Plastics fasteners
IPC: F16B19/10
Filed: 1974-04-22
Abstract: 1443123 Plastics fastener ITW Ltd 22 April 1975 [22 April 1974] 17569/74 Heading F2H [Also in Division E2] A fastener which is an integral plastics moulding comprises a pointed leading end 10, a bifurcated shank section 12 comprising shank portions 14, 16, the radially outer surfaces of which diverge from the leading end and then converge, flanges 22, 24 being formed at the ends of the shank portions, and a pin 30 connected by thin fillets 26, 28 to the radially inner surfaces of the shank portions, the pin having a domed head 32 the periphery of which extends radially beyond flanges 22, 24. The sides of the pin in contact with the shank portions, and the faces 34, 36 of those pistons may be formed with complementary ratchet teeth to ensure that once inserted, the pin may not be removed from space 31. In use, a plastics sheet material may be attached to a frame member by laying the sheet material over an aperture in the frame member, placing the leading end of the fastener over the aperture, and pushing the leading end of the fastener through the plastics material into the aperture until flanges 22, 24 prevent further motion inwards. Pressure is then applied to head 32 of the pin so as to break the fillets and allow the pin to pass into space 31, thereby securing the fastener in the aperture.
Patent GB-1096278-A (GB)
Title: Improvements in or relating to liquid level indicators
Inventor: BRIDGES DONALD EDWARD
IPC: G01F23/24
Filed: 1964-04-28
Abstract: 1, 096, 278. Liquid level alarm devices. DIPSTIX Ltd. April 22, 1965 [April 28, 1964], No. 17611/64. Heading G1N. A temperature-sensitive resistance element (e.g. a coil of nickel wire) is heated by an electric current so that its temperature, and hence its resistance, depends on whether or not it is immersed in a thermally-conductive flowable material (e.g. sand, cement, or the oil in the sump of a motor vehicle), an indication being given (e. g. by a lamp connected in parallel with the element) if the element is not so immersed; the operation of the indicator may be checked by modifying the voltage distribution in the circuit so that an indication is given even if the element is immersed in the material. This may be effected by means of a switch which modifies the circuit, or by virtue of the connection of the temperature-sensitive resistance element in series with a second such element of larger resistance so that an indication is given at first in any case until the second element has warmed up.
Patent GB-222937-A (GB)
Title: Improvements in the grinding of hobs of worm form
IPC: B24B3/12
Filed: 1923-07-07
Abstract: 222,937. Herbert, Sir A., and Shaw, F. W. July 7, 1923. Milling-cutters, sharpening. - In the relief grinding of hobs of worm form, the grinding- wheel is of relatively large disc form and has a bevelled peripheral edge D<2>, Fig. 1, the line of contact of which with the side of the tooth lies evenly along the tooth and also lies in the axial plane of the wheel, this relationship being maintained during the grinding operation throughout the relative motion of the wheel and the hob. In the grinding of worm hobs with involute and certain other teeth, the edge. D<2> of the wheel is bevelled so as to provide a straight line contact with the worm teeth. The grinding-wheel may be bevelled on both edges, as shown in Fig. 3, and is thus adapted, by slight axial movement, to grind the tooth faces at both sides of the space between them. In this arrangement the axis X X of the wheel is actually tilted slightly with respect to the plane of the figure, crossing the helix angle of the worm at right angles. For teeth other than involute teeth, the acting edge of the grinding wheel may be convex or concave, as shown at D<3>, D<4> in Fig. 1, the curved portions being circular or substantially circular, so that the grinding-surface may readily be trued. The curvature of the grinding-edge away from the contact line provides a considerable amount of clearance from the face of an oncoming tooth while effecting the relief grinding, while the angle between the axes X X, 00 of the wheel and hob is such that the flat face of the wheel clears the adjacent tooth by a safe margin. Two grinding- wheels may be employed for grinding both sides of a tooth simultaneously.
Patent GB-940380-A (GB)
Title: Catalysts containing ferric oxide and their production
Inventor: CLARK ROY
IPC: B01J23/86
Filed: 1960-05-19
Abstract: A shift catalyst containing iron oxide is produced by heating ferrous sulphate to convert a proportion of its ferrous iron to ferric iron, adding alkali to precipitate iron hydroxide and calcining to yield substantially ferric oxide. The alkali is preferably ammonia.  The catalyst may also contain chromium oxide prepared either by adding a chromium salt to the partially decomposed ferrous sulphate followed by precipitation and calcining to give ferric oxide/chromium oxide, or by adding chromium hydroxide to the iron hydroxide precipitate and then calcining. The hydroxide precipitate may be washed, filtered, dried, ground and pelleted prior to being calcined, or it may be colloid milled. The catalyst may be blended with graphite prior to pelleting and before calcining. The catalyst is used for converting steam and carbon monoxide to hydrogen and carbon dioxide.
Patent GB-545841-A (GB)
Title: Improvements in cushioned spring connections for vehicles
IPC: B60G11/42
Filed: 1940-12-14
Abstract: 545,841. Laminated springs. DUNLOP RUBBER CO., Ltd., and SADLER, S. Dec. 14, 1940, No. 17682 [Class 108 (iii)] The end of a laminated spring is connected to a vehicle frame by a rubber cushioning element 5 positioned between two metal members 1, 6, the member 1 being secured to the spring end 3 while the roller member 6 is clamped in position by bolts 7 in slots 8 in brackets 9 secured to the vehicle frame 12. The front clamping position is determined when the vehicle is normally loaded. The other end of the spring may be connected to the frame by a rubber bush.
Patent GB-707846-A (GB)
Title: Method and gauge for setting toothed wheels
Inventor: BUDNICK ARNO
IPC: B23Q17/22
Filed: 1952-07-15
Abstract: 707,846. Gauging alignment of separate bodies. SCHIESS AKT.-GES. July 15, 1952, No. 17802/52. Class 106 (2). [Also in Group XXII] A method of setting a toothed wheel in relation to a second toothed member, e.g. a gear wheel 2 in relation to a cutting tool 1, consists in meshing with each member a gauge toothing 4, 5 and comparing the relative positions of the toothings. The toothing 4 is meshed with the gear 2 and the toothing 5 with the cutter 1. The gear and cutter are then adjusted until the tooth 5 formed on a slide 19 is advanced to its maximum forward position. The cut to be taken can be measured from a scale 8, or a dial gauge 23. The slide 19 is also adjustable transversely, the movement being indicated by a scale 26. In a modification, the toothing 5 is pivoted at 14 to a slide which is adjustable against springs 9 by hand-levers 11, the zero positions being indicated by marks 7, 15. The device may also be modified to set helical wheels and gear-shaping cutters or hobs.
Patent GB-573229-A (GB)
Title: Improvements in scaffolding clamps
IPC: F16B2/12
Filed: 1943-10-29
Abstract: 573,229. Scaffold clamps. LONDON & MIDLAND STEEL SCAFFOLDING CO., Ltd., and BURTON, J. Oct. 29, 1943, No. 17875. [Class 20 (ii)] Scaffolding tubes are secured in axial alignment by a clamp comprising a pair of members which embrace the adjacent ends of two aligned tubes and which are forced into locking engagement with the tubes by a bolt &c. passing diametrically through the clamping members between the tubes, the clamping members opening on retraction of the locking means ready for removal and replacement of the scaffold tubes. The clamping members 11, 12 may each be three-sided, or of semi-circular or other form, the securing bolt 10, Fig. 2, being non-rotatably engaged in one member and passing through thick washers 16 constituting abutment for the aligned tubes 19, 20 and for a coiled spring 17, the end of the bolt being enlarged to prevent complete removal of the nut 18. Separate washers 16 may be dispensed with, the metal around the bolt-holes in the clamping members being flanged internally to function similarly to the separate washers, In a further modification washers and spring are dispensed with, the tubes seating on the bolt, the head 15, Fig. 4, of which is welded to one clamping member whilst the nut has a flanged collar 23, or is otherwise permanently associated with the other clamping member, so that the clamping members are positively opened or closed by movement of the nut. The clamping members may be connected by two clamping bolts instead of one to avoid the relative rotation of the clamping members possible with a single bolt.
Patent GB-1136462-A (GB)
Title: Dynamic railway track inspecting apparatus
Inventor: LOMBARDO LEO RAYMOND
IPC: B61K9/08
Filed: 1967-04-19
Abstract: 1,136,462. Recording irregularities in a track surface. CLEVELAND TECHNICAL CENTER Inc. 19 April, 1967 [28 June, 1966], No. 17899/67. Heading B7N. In apparatus for recording irregularities in the surface of railway tracks, relative vertical movements between opposite wheels on an axle which occur above a predetermined frequency, are recorded. Vertical movements from each end of axle 13 are transmitted via a wire rope 25, 28 which passes over a pulley 27, 29 to flexible fibre-glass transducer arms 20, 21. Each arm is supported at one end on a bracket 22, 23 and each wire rope is stressed by spring members which connect the point of attachment of the wire rope and its associated arm to the frame of the vehicle. Each transducer arm supports a pair of strain gauges disposed one on each side thereof. The gauges are connected in a bridge circuit which ensures that only signals produced by relative vertical movement of the ends of two axles are passed via preamplifier 50 to filter 53 which removes signals below 1¢ cycles/sec. caused by vehicle body roll. Signals above this frequency are amplified 54 and rectified 55 and passed to a number of amplitude detectors 56, 57, 58, each set to a different threshold. Each counter 60, 61, 62 thus records irregularities in the track in excess of a preset amplitude.
Patent GB-1353834-A (GB)
Title: Benzenesulphonamides
IPC: C07C317/00
Filed: 1972-04-18
Abstract: 1353834 Compositions comprising sulphonamides MERCK & CO INC 18 April 1972 [19 April 1971] 17918/72 Heading A5B [Also in Division C2] Pharmaceutical preparations especially suitable in the treatment of liver fluke contain (I) as active ingredient (R is H or NH 2 , X 1  and X 2  are halogen, NO 2  or CF 3  and R 1  and R 2  are H or C 1  to  5  alkyl). Other compounding ingredients are, e.g. thiabendazole, tetramisole, rafoxanide, parbendazole and phenothiazine. Administration may be orally or parenterally.
Patent GB-710613-A (GB)
Title: Lubricants
IPC: C10M173/02
Filed: 1952-07-16
Abstract: A lubricant for cold-forming alloy steels consists of a mixture of soap, water and copper powder.  The copper powder may be in a proportion of 5 to 75 per cent. by weight, preferably 20 to 70 per cent. copper powder with 10 to 50 per cent. soap and 10 to 50 per cent. water.  The lubricant may be prepared by heating castile soap in water until dissolved and adding copper powder passing through a 325 mesh (A.S.T.M.) screen.
Patent GB-283423-A (GB)
Title: Propeller for aircraft
IPC: B64C11/36
Filed: 1927-07-08
Abstract: 283,423. Haw, J. July 8, 1927. Screw propellers.-In variable pitch propellers, the outer races of the double thrust ball gearing of the adjustable collar are enclosed in a casing and are guided by bars rigidly mounted parallel to the propeller shaft. The blade roots are provided with base plates carrying the pins by which adjustment is effected. Eccentric pins 20, Fig. 1, on the roots of blades 24 are coupled by links 19 to a sleeve 3 slidable on a sleeve 2 on the propeller shaft 1. The sleeve has thereon the inner races 4 of the nest bearings, the outer races 7 being mounted in a casing 8 slidably mounted on rods 11 fixed in a casing secured to the engine plate 17. The casing 8 has an outer screwed surface engaging the screw of a sleeve 13 adapted to be rotated by a chain 16 which can be moved by a crank near the pilot. The boss and blade sockets are in two parts bolted together. For thin hollow blades, a stiffening sleeve at the root is fitted and a base flange bolted thereto. Where the blades have longitudinal steel stiffening bars 30, Fig. 4, their conical roots 33 take into a base block 31 carrying the eccentric pin 20, and a sleeve strap 32 encircles the root 23 of the blade and the block 31. Specification 267,773 is referred to.
Patent GB-811258-A (GB)
Title: Improvements in and relating to machines for cleaning grain or like material
IPC: B02B1/02
Filed: 1957-06-07
Abstract: 811,258. Grain-cleaning machines. LINDE MASCKINER A.B. June 7, 1957 [Oct. 31, 1956], No. 18150/57. Class 58. A grain cleaning machine comprising a feed device 1, a screen 21, at least one evacuation fan 27 communicating with waste collecting chamber 16, 17, a discharge device 20 for cleaned grain, has pre-cleaning means 2 between the feed device 1 and the screen 21, channelling 12, 13 connecting the pre-cleaning means 2 with the collecting means, means (e.g. dampers 3, 8, 10) for varying air flow through the channelling, and means 25 for further cleaning the grain prior to discharge. In operation, grain passes from the feed 1 to a scarifier 28, to the pre-cleaner 2, to a container 5, to rollers 6, 7, past an air current which flows into the lower part of channel 12 to the screen 21, separated dust meanwhile passing through channelling 13, 12 to chamber 17. An upward air current 26 passes through the screen 21 and in this further cleaning transports any dust to the chamber 16.