baber/WOPTO huggingface dataset:
Patent GB-779647-A (GB)
Title: Improvements in or relating to power-assisted steering gear for mechanically propelled vehicles
IPC: B62D5/06
Filed: 1951-12-11
Abstract: 779,647. Vehicle power steering. BISHOP, R., and JOHNSTON, R. H. Dec. 11, 1952 [Dec. 11, 1951], No. 29013/51. Class 79(5). Power-assisted steering gear for mechanicallypropelled vehicles comprises a piston and cylinder motor supplied with pressure fluid under the control of a valve 44, Fig. 1, the closure member 43 of which is moved axially on relative rotation occurring between parts 1, 2 of the steering shaft. Part 1 carries a flanged part 12, cup-shaped members 17, 18 and an end member 13 held together by bolts 14 for rotation with the shaft part. Part 2 is keyed to a disc member 19 rotatable relatively to member 17 and having clearance holes 24, Fig. 2, for the bolts 14, springs 26 acting through T-shaped parts 27 to centralise the bolts in the holes. Part 2 carries a flanged member 32 rotatable relatively to member 18 and having axial slots 34, Fig. 3, in its flanges 33, and member 18 has helical slots 35 in its wall 18b. A pin 36 engages each pair of slots 34, 35, the latter slots being wide enough for rollers 37 mounted on the pins, and the pins engage a block 39 rotatable on part 2 and an annulus 41 which rides in a slot 42 in the valve closure member. Thus, if on rotation of part 1, springs 26 are overcome, member 18 will turn relatively to member 32 causing axial movement of annulus 41 and member 43 in the appropriate direction. The resulting movement of the motor and road wheels acts through shaft part 2 to centralise the valve member. If the power supply fails, steering is effected manually by engagement of the bolts with the sides of the holes in member 19, if the steering effort overcomes the springs 26. Specification 745,202 [Group XXIX] is referred to.
Patent GB-730221-A (GB)
Title: Improvements in or relating to artificial leather
IPC: D06N3/06
Filed: 1952-11-18
Abstract: 730,221. Artificial leather. EBERLE, H., and SALADIN, O. Nov. 18, 1952 [Nov. 19, 1951; Nov. 13, 1951; Nov. 30, 1951], No. 29053/52. Class 140. Artificial leather, which is permeable to air and steam, but sufficiently impermeable to water, is produced by covering a fibrous support with a layer of a dispersion of an olefinic polymer containing 5-30 per cent water and evaporating the volatile components from the layer by heating to a temperature higher than 120‹ C. to produce a network of pores in the layer. The resin layer may be gelatinized. The fibrous support may be highly absorbent woven or knitted fabrics, fleeces, or paper and the olefinic polymer may be polyvinyl chloride, copolymers of vinyl chloride and vinyl acetate, or mixtures of vinyl and methacrylic acid ester polymers. The coated support may be subjected to electric spark discharge to increase the porosity, and may be given a final coating of non-porous olefinic polymer plastisol, which is also rendered porous by electric spark discharge treatment. Inorganic or organic gas-releasing compounds may be dissolved or dispersed in the aqueous dispersions, or their solutions may be used in place of water for making the dispersions, to release gas by heat or added acid during the entire drying and gelatinization treatments, with simultaneous evaporation of water, to increase the porosity. Suitable compounds are sodium bicarbonate, or ammonium carbonate, bicarbonate or carbamate. Fibrous material of animal, vegetable or synthetic origin, e.g. wool dust, cotton, cellulose, shredded or powdered leather, staple length being 1 mm., may also be added to the dispersions to increase the porosity. The porous product may be impregnated to increase the water repellency by oiling or greasing with cream or with aqueous paraffin dispersions. In examples: (1) extruded polyvinyl chloride is mixed with pigment, dioctyl phthalate and a mixture of higher molecular weight hydrocarbons and the mixture homogenized in a three-roll mill to form a pasty mass a which is stirred with water until a spreadable mass b is obtained; the mass b is coated on cotton dried at 140‹ C., gelatinized at 150-175‹ C., grained, subjected to electric discharge, and greased; the resulting product is dried at 140‹ C., overcoated with the pasty mass a, gelatinized at 175‹ C., grained, and again subjected to electric discharge; (2) a mixture of polyvinyl chloride and polymethyl methacrylate is used; (3) a mixture of a vinyl chloride-vinyl acetate copolymer and polyvinyl chloride is used; (4) the pasty mass a of (1) is stirred with an aqueous solution of ammonium bicarbonate to form a spreadable dispersion; (5) a pasty mass similar to a of (1) has cotton shearing dust added, and is stirred with an aqueous solution as in (4).
Patent GB-621401-A (GB)
Title: Improvements in recovery of riboflavin
IPC: A61K31/525
Filed: 1946-09-30
Abstract: Riboflavin is obtained from fermentation residues, fermented mashes or beers, by removing the undesirable impurities from the starting material by precipitation, e.g. with acetone, concentrating the purified liquor under reduced pressure, adding further quantities of organic solvent and crystallizing the riboflavin therefrom at a low temperature.
Patent GB-738245-A (GB)
Title: Improvements in or relating to ventilation devices
IPC: F24F7/00
Filed: 1953-10-21
Abstract: 738,245. Ventilators. SCOTT, W. T. Oct. 20, 1954 [Oct. 21, 1953], No. 29065/53. Class 137. A detachable fitting for controlling the flow of air through an air brick ventilator B comprises a backplate A which is clamped tightly over the outer face of the ventilator by hookshaped bolts F and is provided with a rectangular opening C of a size sufficient to allow the entry of enough air to ventilate the room, triangular brackets D, having stops D<SP>1</SP> projecting inwardly from their sloping front edges, being arranged at each side of the opening C to accommodate a flap E which, in the event of a strong wind, is blown inwardly to close the opening C. A packing H prevents the ingress of air between the rear surface of the back plate A and the surface surrounding the ventilator. Pads made e.g. of rubber may be provided either on the edges of the flap E, or alternatively on the stops D<SP>1</SP> of the triangular brackets D. The flap E may be hinged to the back plate A at its lower edge if required. In a modification the flap E is hinged along the outer edge of the top plate of a box-like member which is open at the front and at the bottom and is arranged over the opening C.
Patent GB-756063-A (GB)
Title: Improvements in the operation of dynamo-electric machines in mutual synchronism
Inventor: CHOUDHURY SHAFI-UDDIN AHMED
Filed: 1953-10-21
Abstract: 756,063. Electric control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 20, 1954 [Oct. 21, 1953], No. 29082/53. Class 40(1) [Also in Groups XXXV and XXXVII] In a positional-control system of the selsyn type, the transmitter and receiver(s) comprise identical dynamoelectric machines provided with windings so that each machine is capable of mechanical power output as well as maintaining synchronism with the other machines. As shown, Fig. 1, each machine stator comprises an A.C. exciting coil 12, 12<SP>1</SP>, and a motoring coil 13, 13<SP>1</SP>, arranged electrically in quadrature with the associated exciting coil and fed from the same supply through a capacitor 14. The rotor consists of a winding 5, 5<SP>1</SP> connected to a commutator 8, 8<SP>1</SP> and a polyphase winding 6, 6<SP>1</SP>, three equispaced points on the transmitter and receiver winding 6, 6<SP>1</SP>, being interconnected by slip rings 7 and conductors 4. The commutators are short circuited by brushes 9 about an axis in quadrature with the axis of the excitation coil 12, 12<SP>1</SP>. The transmitter is driven by a variable speed motor driving in addition any load, the receiver being coupled to another load to be driven in synchronism with the first load. The excitation may be switched on as the motor is energized or afterwards so that any drive can be switched on and synchronized with another drive already running. Fig. 5 shows a modified transmitter in which the rotor windings 5, 6 of Fig. 1 are replaced by a single winding and the field and motor windings are arranged, " three phase " fashion. The phase winding 23 constitutes the excitation winding and the phase windings 24, 25 constitute the motoring windings energized through the capacitor 14 which is connected as shown in full or as shown dotted according to the direction in which the transmitter is driven. Specification 582,341 is referred to.
Patent GB-850481-A (GB)
Title: Improvements in or relating to drive transmission means for rotary members
IPC: F16D7/02
Filed: 1957-09-17
Abstract: 850,481. Turntables. ENTWISTLE, J. Sept. 15, 1958 [Sept. 17, 1957], No. 29170/57. Class 104 (2). [Also in Group XXIV] An overload slip coupling comprises a driving pulley 19 engaged by a rope 23 secured by attachments 21, 26 at its ends to a driven frame 17, a jockey pulley 27 on a lever 28 pivoting about the axis of the driving drum being biased by a spring 30 to tension the rope. The direction of drive is clockwise of Fig. 1, so that transmission of torque tends to increase the frictional grip of the rope 23 upon the pulley 19. The square frame 17 is fast with a turntable 18 which may carry a motor vehicle, and is mounted rotatably by a bearing 16 upon a support 14 which may lie upon the floor. An electric motor 11 drives through a train of reduction gearing 12 (not further described) to a shaft 13 keyed to the driving pulley 19.
Patent GB-1004344-A (GB)
Title: Accessory for suction cleaner
IPC: A47L9/02
Filed: 1962-07-30
Abstract: 1,004,344. Suction cleaner nozzles. LE SUPER. July 30, 1962. [Jan. 12, 1962], No. 29195/62. Heading A4F. A comb 2 for removing dust, threads &c. from a surface to be cleaned, and which is detatchably mounted in the mouth 1 of a suction cleaner nozzle, is received in slots 6 in the end walls of the mouth, and is retained by the engagement of faces 11 of bosses 9 at the ends of the comb with outer faces 12 of the nozzle. The comb 2, which has two rows of teeth 10, is of resilient material such as polyethylene or hardened rubber, and is downwardly convex when in position in the nozzle mouth. Specification 334,944 is referred to.
Patent GB-255703-A (GB)
Title: Improvements in securing broom handles, chair legs and the like
IPC: B25G3/00
Filed: 1925-11-20
Abstract: 255,703. Franklin, A. C. Nov. 20, 1925. No Patent granted (Sealing fee not paid). Joints.-A device for fastening broom handles, their legs, &c. in their sockets comprises a strip of metal with toothed vertical edges bent over at right angles in opposite directions so that when the handle &c. F is driven into the hole in the brush &c. G the teeth D bite into the handle and the teeth B into the wall of the hole, the top end A of the plate being bent over to form a stop. Both toothed vertical edges may be bent over in the same direction, the plate in this case being provided with teeth or extrusions projecting in the opposite direction.
Patent GB-222000-A (GB)
Title: Improvements in filing and storing gramophone record discs
IPC: G11B33/04
Filed: 1924-02-12
Abstract: 222,000. Stott, E. Feb. 12, 1924. Cabinets.-In a cabinet for filing and storing gramophone records, of the type in which pivoted partitions or guide cards K are provided between the records I, and the cabinet sides C, D, parallel to the partitions are hinged so as to swing outwards, the partitions are supported at a different level from the records on base plates L. The movement of the sides C, D is controlled by plates E fitted with pins F sliding in slots G in the fixed sides V. The top of the cabinet may be closed by flanged doors hinged to the sides V which are provided with ball catches engaging in recesses H in the sides C, D to hold them in the closed position.
Patent GB-479379-A (GB)
Title: Improvements in or relating to film carriers for photographic cameras
IPC: G03B17/26
Filed: 1936-10-30
Abstract: 479,379. Film magazines. LEITZ GES., E. Oct. 30, 1936, No. 29591. Convention date, Dec. 2, 1935. [Classes 97 (i) and 98 (i)] A film carrier, shown in elevation in Fig. 2, and in horizontal section in Fig. 1, contains two identical film magazines 5 and 6 for half-width film perforated in one margin, one inverted relative to the other, inserted through the open front of the casing 1, and enclosed by the cover 17. Apertures 11 and 12 in the magazines, through which driving mechanism may operate the take up spools, registe: with apertures 18 and 19 in the casing 1 Claw-feed mecha nism may operate through apertures and 8 in the maga zines, registering with apertures 3 and 4 in the sides of the casing. The magazines 5 and 6 are encircled by a spring band 14 and held in place by the bends 13 engaging projections on them. The band can be moved forward by the projecting lugs 15 and 16 for the removal of the magazines through the front of the casing. The casing has projections 2 for attachment to the camera. By reversing the casing either film may be exposed at will.
Patent GB-866544-A (GB)
Title: Thermonuclear reactor
IPC: H05H1/12
Filed: 1958-09-16
Abstract: 866,544. Nuclear fusion reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Sept. 16, 1958 [Oct. 3, 1957], No. 29593/58. Class 39(4). A stellarator comprises a continuous tube containing reactant materials and having at least one divertor section; means for ohmically heating the reactants to an intermediate temperature and further means for heating the reactants to thermonuclear temperatures; means for confining the reactants to a central axial part of the tube; and means for removing at the divertor section the reactant and reacted particles approaching the walls of the tube. As shown in Fig. 1 the tube 10 may be in the form of a figure of eight; the end loops may be in parallel planes but preferably their planes are equally inclined in opposite directions from the horizontal. The tube is provided with bulges, such as 14, which may be placed at positions marked 16 and which are surrounded by coils 30 and magnetic shields 20. A coil 22 surrounds the whole of the tube and passes round the outsides of the shields 20. The tube includes a divertor section 18, shown in Fig. 2, which comprises a bulge in which a coil 52 is situated to create a magnetic field which diverts particles approaching the walls to the vicinity of exhaust ducts 56. As shown in Fig. 2 the tube 10 is surrounded by a second tube 35 and a moderator material such as heavy water or a lithium compound is circulated through the space between the two tubes to remove the heat evolved. An inlet pipe 42 allows reactant materials to be forced into the tube 10 as a jet having a velocity of about 1 km. per second. At each end the tube 10 may be surrounded by an iron toroidal core 60 (only use of which is shown in Fig. 1) upon which are wound coils 64, 72. In operation the tube 10 is evacuated to 10<SP>-6</SP> mm. pressure and filled for. example with equal quantities of deuterium and tritium to a density of about 5 X 10<SP>14</SP> particles per c.c., corresponding to a pressure of 4 X 10<SP>-3</SP> mm. A D.C. voltage is then applied to coils 22, 52 to establish the main confining field and the divertor field, the fields. being brought up to a value of 20,000 gauss over a period of several seconds. A pulse is applied to coils 72 to ionise the gas, and then a current of about 10,000 amps at 1600 volts is supplied to coils 64, either by discharge of a condenser or from a D.C. source, to induce a current of about 10<SP>5</SP> amps in the discharge and to heat the gas to a temperature of about 2 X 10<SP>5</SP> degrees. This current is applied for about 0.1 seconds and then disconnected. The final heating to temperatures of 10<SP>3</SP> degrees is achieved by applying alternating current to the coils 30 so that a pulsating magnetic field is produced within the bulges 14. Once thermonuclear temperatures are achieved the reactions are selfsustaining and the current to coils 30 may be discontinued; the reactor may be shut down by stopping the input of fresh gas or by cutting off the supply to the coil 22. U.S.A. Specification 2,910,414 is referred to.
Patent GB-1211047-A (GB)
Title: Two pedal hydraulic braking system
Inventor: WALKER STANLEY
IPC: B60T11/16
Filed: 1968-06-21
Abstract: 1,211,047. Fluid pressure brakes. GIRLING Ltd. 15 May, 1969 [21 June, 1968], No. 29600/68. Heading F2F. A two-pedal hydraulic braking system in which brakes on opposite sides of the vehicle are applied by fluid from separate master cylinders each actuated by its own pedal has the two master cylinders connected by a transfer port or passage 26 which is isolated from the pressure spaces of both cylinders by normally closed transfer valves 33 which are adapted to be opened by axial movement of the pistons in the brake applying direction and which are located in axial passages 23. The valves 33 are opened by the rearwardly extending stems 38 of recuperation valves 37 against the action of springs 34 when each piston is moved in the brake applying direction. However if the piston of the other cylinder has not been advanced the transfer valve in the piston of that cylinder remains closed and there can be no transfer of fluid between cylinders unless the pistons are advanced simultaneously. The cylinders are formed by parallel bores 10, 11 in a common body 12 incorporating an integral reservoir 13.
Patent GB-1116348-A (GB)
Title: Improvements relating to electrical waveguide arrangements
Inventor: DOBSON STANLEY
IPC: G01S7/03
Filed: 1964-07-23
Abstract: 1,116,348. Waveguide coupling arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 22 July, 1966 [23 July, 1964], No. 29678/64. Heading H1W. [Also in Division H4] In a duplexer arrangement for a radar system, two waveguides A and B, having their corresponding ends coupled by hybrid couplers H 1  and H 2 , and having a transmitter and a receiver at the two ends of the first waveguide and an aerial and a dummy load respectively at the corresponding ends of the second waveguide are further coupled, intermediate the hybrid couplers, by a first tuned coupling G2 ionizable to become a reflector, e.g. a T-R cell, and by a second tuned coupling G3, positioned on that side of the first coupling remote from the transmitter, tuned to the same frequency as the first coupling, and spaced from that coupling by a distance such that reflection from the two couplings cancel at a second frequency within the signal frequency band. The Q-factor of the coupling devices is chosen to provide small reflection in the range between the two reflectionless frequencies, whereby the pass band for signals passed from the aerial to the receiver is increased. The second tuned coupling G3 may be a tuned aperture, or a second T-R cell designed to ionize at a lower power than G2, to increase the isolation between the transmitter and the receiver.
Patent GB-625692-A (GB)
Title: Process of washing gases
IPC: B01D53/34
Filed: 1946-10-04
Abstract: 625,692. Gas-purifying processes. DE DIRECTIE VAN-DE STAATSMIJNEN IN LIMBURG. Oct. 4, 1946, No. 29703. Convention date, June 12, 1945. [Class 55 (ii)] A gas purification process comprises washing gases with an emulsion of two immiscible liquids, one dissolving the oily impurities and the other capable of chemically fixing at least one other impurity to be removed from the gas. For example, hydrogen sulphide and naphthalene are simultaneously removed by washing with a dispersion of anthracene oil in dilute sodium carbonate solution, subsequently treating the emulsion with air to liberate the hydrogen sulphide and naphthalene. Alternatively, and in the apparatus shown, a dispersion of tar oil in ammonia liquor is used. Coke oven gas enters scrubbers 1, 2 and 3 successively, being contacted with the emulsion in 2. The emulsion takes up carbon dioxide, hydrogen sulphide and naphthalene from the gas and passes to a separator 4 where it is extracted with toluene or other hydrocarbon such as benzine, light mineral oil fractions &c. The tar oil and naphthalene are dissolved and the solution withdrawn from the top of the separator and distilled to recover its constituents. The ammonia liquor containing carbon dioxide and hydrogen sulphide and saturated with toluene is pumped to scrubber 1 where the toluene is taken up by the gas to be reabsorbed in the tar oil in scrubber 2. The liquor drained from scrubber 1 is regenerated with air for re-use. Water is drained through scrubber 3 filled with iron rings and serves to remove ammonia and carbon dioxide, nitrogen oxides also being removed by reduction with the iron. The process is of particular use when the oil-soluble impurity content is small, the amount of solvent then required being small in relation to the volume of gas cleaned.
Patent GB-221700-A (GB)
Title: Improvements in lubricators for valve rockers and push rods of internal combustion engines and the like
IPC: F01M9/10
Filed: 1923-11-27
Abstract: 221,700. Little, C. R. Nov. 27, 1923. Baths.-A lubricator for pivoted joints, such as that between the push rod and valve rocker of an internal-combustion engine, comprises a rubber bulb A, Fig. 1, with flexible branches B, C in which are received the rod X and the arm Y pivoted thereto. The bulb has a neck D through which lubricant is introduced and which serves as a vent. Alternatively, the filling orifice may be closed by a, rubber cap F, Fig. 5, which snaps over a flange E<2>. Where a single push rod engages two oppositely-arranged valve rockers, or where the rocker is extended beyond the push rod, the bulb is formed with two opposite branches C. Where there are two push rods side by side, each engaging a rocker, the bulb is formed with two lateral branches C and with two depending branches D, as shown in Fig. 5.
Patent GB-365056-A (GB)
Title: Life guard for motor road vehicles
IPC: B60R21/34
Filed: 1930-10-07
Abstract: 365,056. Life-guards for road vehicles. GOODING, W. J., 61, Burlington Road, New Malden, Surrey. Oct. 7, 1930, No. 29957. [Class 103 (ii).] A life-guard for road vehicles comprises two buffers EE, free to revolve when struck so as to deflect obstacles away from the vehicle or into a net H, each buffer being supported on the vehicle chassis by adjustable rods F and being moved against the action of a spring to follow the track of each wheel by a rod C actuated by an electric motor or solenoid B energized by current from the vehicle batteries when a switch D is operated by a turn of the steering-wheel.
Patent GB-474860-A (GB)
Title: Improvements in furnace walls
IPC: F23M5/08
Filed: 1936-11-04
Abstract: 474,860. Furnace walls. AMERICAN ENGINEERING CO. Nov. 4, 1936, No. 30018. Convention date, Nov. 21, 1935. [Class 51 (i)] In a furnace wall of the kind comprising vertical water tubes 23, 26 connected to upper and lower horizontal headers 24, 25, 27, and having a portion in abutting relation with the fuel bed of the furnace, one or more tubes 37 extend from one end of the upper header 24 transversely adjacent to the wall and are connected to the lower header 27 for diverting molten slag flowing down the wall from the lower portion thereof. The lower portions of the wall tubes may be provided with protective blocks above which the tubes 37 are arranged.