baber/WOPTO huggingface dataset:
Patent GB-1378138-A (GB)
Title: Thermionic cathode for an electric discharge tube
IPC: H01J1/15
Filed: 1973-05-25
Abstract: 1378138 Cathode materials PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 May 1973 [30 May 1972] 25155/73 Heading H1D A thermionic cathode comprises a Mo plate 5 welded to a W filament 4 and carrying a compressed mixture 6 of LaB 6  and Rh, W 2 B or W 2 B 5 . The plate is circular or polygonal, plane or concave. It may be formed from Mo powder and compressed with the mixture at 3000 kg./  cm.<SP>2</SP>. The cathode is heated in H 2  at 1750 C., degassed at 1600 C. and activated at 1500 C. One or more zig-zag or spiral W filaments may be used, connected to Fe-Ni-Co alloy leads 2, 3. The cathode is used in electron microscopes.
Patent GB-505337-A (GB)
Title: Adjustable inductance devices
IPC: C04B35/10
Filed: 1938-08-26
Abstract: 505,337. Inductances. STANDARD TELEPHONES & CABLES, Ltd. Aug. 26, 1938, No. 25158. Convention date, Sept. 9, 1937. [Class 38 (ii)] A variable inductance comprises a coil 6 disposed within a casing the end wall 16 of which carries a screwed support 17 projecting outwardly on which support is mounted a short-circuited winding 19 which may be rotated so as to adjust its distance from the coil 6 and thus vary the inductance thereof. A second coil 7 the inductance of which may be varied by a short-circuited winding 23 may be structurally combined with the first coil (as shown), the two coils 6, 7 forming elements of a balanced band-pass filter.
Patent GB-156905-A (GB)
Title: Improvements in or relating to the extraction of fat or oil from raw materials
IPC: C11B1/10
Filed: 1919-10-14
Abstract: 156,905. Bollmann, H. Oct. 14, 1919. Fats and fatty oils, extracting by solvents. In apparatus for extracting fats and oils by solvents in countercurrent, the material in perforated receptacles 4 - - 9 is moved in steps in a closed chamber C beneath a charging-hopper 2, sprays 12 for heated solvent, and a closure plate 15 and air spray 16 operated by a pump 17 so as to vaporize residual solvent into the chamber C, and finally on to a turntable above a pit 18. The endless chains 22 carrying the receptacles 4 .. 9 are operated by a handle 24; the receptacle 4 is inserted through the gate 1 by hand, and the receptacle 9 withdrawn similarly through the gate 19. The pure solvent enters a heater 11 by a pipe 10 and after use is forced from a collector 13 by a pump 21 to the next heater and spray. The solvent vapour passes through pipes 20 to a condenser. In a modification, the receptacles are circuited in two columns on endless chains, a spray of pure solvent falling on the top of the upwardly moving column and being pumped from a collecting-chamber at the bottom to be sprayed on the top of the downwardly moving column; the receptacles are discharged and recharged by the help of a clawed coupling operated by hand from outside the chamber.
Patent GB-1532068-A (GB)
Title: Method and apparatus for making glass fibres utilizing an oscillating spinner
IPC: C03B37/04
Filed: 1976-06-18
Abstract: 1532068 Glass fibres JOHNS-MANVILLE CORP 18 June 1976 [28 July 1975] 25269/76 Heading C1M [Also in Division D1]  A glass-fibre mat is made by feeding molten glass 140 to a rotor 48 and collecting the column of fibres formed on a collecting surface (Fig. 4, not shown), the column being moved back and forth across the collecting surface by moving the rotational axis of the rotor (preferably by pivoting the axis about a line that is within 6" of the bottom wall of the rotor). Preferably the rotor 48 and its associated drive motor 56 are mounted on plate 42 and frame 40, the frame 40 being in turn mounted on member 16. Ducts through member 16 may supply compressed air to stripper rings 78, cooling water to the rotor shaft 50, binder to spray nozzles 96 and combustion gas to burners 66. Member 16 is rotatably mounted in sleeve 18, the sleeve being rigidly attached to a support assembly 2, and may be rotated, to achieve the said pivoting of the rotor 48, by mechanism 6. The mechanism 6 comprises two hydraulic cylinders 26 attached to arm 24, the rod 29 of each cylinder being pivotally attached by pins 32 to a yoke 30 fixed to member 16. Successive actuation of cylinders 26 causes a rocking motion of inner member 16. Preferably a chain 128 is disposed around member 16, the chain being engaged by a gear 130 which is a component of a potentiometer 136. The signal from the potentiometer is thus a function of the angular position of member 16, and may be used to control the hydraulic cylinders 26.
Patent GB-944393-A (GB)
Title: Developer for electrophotographic purposes
Inventor: TOMANEK DR MARTHA
IPC: G03G9/08
Filed: 1960-07-20
Abstract: 944,393. Electrophotographic developers. KALLE A. G. July 20, 1960 [July 25, 1959], No. 25289/60. Heading G2H. An electrophotographic developer consists of a carrier and a negatively self-charging toner which includes a copolymer of vinyl chloride containing carboxyl groups. Preferably the copolymer is obtained by polymerization of vinyl chloride with a vinyl ester of a fatty acid such as acetic, propionic or butyric acid and with a small proportion of an unsaturated monocarboxylic acid such as crotonic or cinnamic acid or of an unsaturated dicarboxylic acid such as maleic, fumaric or itaconic acid. The carrier : toner ratio is within the weight range 100 :10 to 0.1 and the particle zones are within the ranges 100 to 600 Á for the carrier and 1 to 100 Á for the toner. The toner may be coloured by the inclusion of carbon black or a dye. Typically a dispersion in water of the dye, of which examples are given, and of the toner copolymer are stirred with the temperature in the range of 40-70C., preferably with the addition of 2-15% by weight of an additive such as phenyl-ethyl-urethane or chlorotoluene. The carrier may be of glass, quartz, a metal, potassium or copper sulphate, potassium or sodium chloride, barium or titanium oxide, tartaric acid, carboxymethyl cellulose, polystyrene, potassium sodium tartrate,phthalic anhydride or potassium oxalate.
Patent GB-518628-A (GB)
Title: Improvement in or relating to blowpipe machines for cutting by the use of a drawing
IPC: B23K7/00
Filed: 1938-08-30
Abstract: 518,628. Dividing by fusion. MESSER & CO., GES. Aug. 30, 1938, No. 25382. Convention date, Oct. 20, 1937. [Class 83 (iv).] A blowpipe cutting machine guided by hand over a drawing and traversed by a steerable motor driven tracer wheel, has an optical arrangement located in the neighbourhood of the tracer wheel for producing a light ray which is guided directly or indirectly by the tracer wheel along the lines of the drawing. The light ray may be provided with a marker such as a cross wire or may be of such shape that the direction of actual movement is indicated. It is guided either by rotation of the optical arrangement or of the tracer head or from any point connected to the tracer head for simultaneous rotation the optical arrangement being geared to the tracer head. For use with black and white drawings a bright white light ray may be used, and for use with blueprints a black light ray with a white edge produced by the use of coloured filters. The tracer wheel 1 is mounted in a steerable tracer head 3 and is rotated by gearing 7, 6, 5 from a shaft 4 mounted in the housing 2 which carries the electric motor, reducing gear, a regulating resistance and a speed indicator. To the housing 2 is secured a housing 8 containing the optical device 9 which consists of a light source and a series of consecutively disposed convex and concave lenses so as to project a light point 31 on the lines of the drawing 30. The device 9 is rotatable about its axis and may be rotated by a hand wheel 12. It is geared to the tracer head by two pairs of bevel wheels 13, 14 and 15, 16.
Patent GB-426600-A (GB)
Title: A process for the production of sintered bodies
IPC: B22F3/22
Filed: 1934-09-04
Abstract: Articles of refractory metals or alloys, or of compositions containing substantial proportions of carbide, boride, or nitrude, particularly hollow articles, are made by adding to the powdered constituents an electrolyte in sufficient quantity to produce a pourable mixture, pouring such mixture into an absorbent mould, drying the moulded article, and finally highly sintering it.  The materials used may be metals such as tungsten, molybdenum, or tantalum, or carbides, borides, nitrides or double compounds of metals such as tungsten, molybdenum, tantalum, or titanium along with one or more metals such as iron, nickel, cobalt, tungsten, molybdenum, or tantalum.  The electrolyte used may be water or a salt solution, and a binder may be used which may be a metal or an organic binder such as dextrin or rubber, or an inorganic binder such as lime.  The moulds are preferably made of gypsum.  In a specific example the mixture to be moulded is made from 80 per cent of tungsten carbide, 10 per cent of titanium carbide, and 10 per cent of cobalt along with cobalt nitrate solution and glycerine.
Patent GB-973628-A (GB)
Title: Rifle grenade
IPC: F42B30/04
Filed: 1963-06-26
Abstract: 973,628. Rifle grenades. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. June 26, 1963 [July 9, 1962], No. 25466/63. Heading F3A. In a rifle grenade, a tail tube 7 is divided into two compartments by an integral collar 10 which forms a seating for a nozzle block 15, the latter having an axial nozzle 16 of constant diameter. The forward compartment houses a propellent charge 12 having an axial bore and a longitudinally ribbed outer surface (Fig. 4, not shown), and is supported, via a relay charge 21 enclosed in combustible covers 22, 23, by the nozzle block 15. An annular chamber 24 facilitates passage of the gases from relay charge 21 to the propellent charge 12 and gaps 19 between projections 20 on the block 15 facilitate the escape of propellent gases from charge 12 through nozzle 16 after combustion of the relay charge. The tail tube 7 may be of aluminium alloy, the block 15 of steel and the relay charge 21 of black powder housed between covers of celluloid. An empennage comprising fins 8 and a ring 9 may be of thermoplastic material.
Patent GB-260750-A (GB)
Title: Improvements in locks
IPC: E05B63/10
Filed: 1925-10-13
Abstract: 260,750. Clare, E. W. Oct. 13, 1925. Locks, revolving-barrel; keys and key-pins; Locks, cases for.-A bolt with a rack is operated by a pinion into which protrudes spring-pressed locking pins which are directly engaged and released by the insertion of the key. The pinion d is mounted on a pin l anchored in a lower block o within the tubular casing and extended to form the key pin. When the key is inserted into the hole r in the upper block n, its lugs k, k<1> engage the spring pins f, f<1> and push them out of the holes e, e<1> in the pinion d, which can then be turned by the key to operate the bolt c. The casing is tubular and has a pair of sectional blocks n, o carrying the lock-mechanism and secured by a screw p.
Patent GB-800455-A (GB)
Title: Syringe unit
IPC: A61M3/00
Filed: 1955-09-06
Abstract: 800,455. Syringes. MERCK & CO., Inc. Sept. 6, 1955 [Sept. 15, 1954], No. 25538/55. Class 81 (2). [Also in Group XVII] A syringe unit comprises two containers 1, 5, one of which has a nozzle 2 insertable into the nozzle 6 of the other, the two nozzles forming a spigot-and-socket joint which is moisture-tight and airtight and provides a passageway between the interiors of the containers, one of which is squeezable to eject the contents when separated from the other. A collapsible container 1 for a solid, powdered or crystalline ingredient is made of tin, tin-coated lead, aluminium or plastic and has a rigid nozzle 2. A resilient container 5 for a liquid ingredient is made of rubber or polyethylene and has a rigid nozzle 6. After removing a cap (not shown) from each nozzle 2, 6, one nozzle 2 is fitted into the other nozzle 6, the nozzles having complementary tapers. The resilient container 5 is squeezed to eject liquid into the collapsible container 1. On release, the resilient container 5 assumes its initial form to draw the ingredients into it, the final mixture being injected from either container when separated from the other. A hypodermic needle may be provided in the nozzle of either container.
Patent GB-1501587-A (GB)
Title: Vane pump or motor
IPC: F01C21/08
Filed: 1976-06-21
Abstract: 1501587 Rotary positive-displacement fluidmachines ROBERT BOSCH GmbH 21 June 1976 [15 July 1975] 25578/76 Heading F1F In double-acting sliding-vane hydraulic pump, or motor, the vanes 35 are disposed in diametral pairs and biased outwardly by springs 41 and pistons 38, 39 in bores 42, 43 intersecting a bore 44, which is changed with working fluid from the low-pressure side of the machine through a non- return valve 46 and duct 53. Losses due to leakage from the bore 44 are made up by fluid entering the bore (through the valve 46) owing to suction caused by the springs urging the pistons outwardly. Pressure-balancing bores 45 may be formed in the vanes.
Patent GB-484552-A (GB)
Title: Improvements in and relating to ventilator mechanism for vehicle bodies
IPC: B60H1/26
Filed: 1937-09-21
Abstract: 484,552. Ventilators for vehicles. BRIGGS MANUFACTURING CO. Sept. 21, 1937, No. 25587. Convention date, Sept. 28, 1936. [Class 137] A movable cover 15 adapted to close an opening in the roof 9 or elsewhere in a vehicle may be raised and tilted in reverse directions, in one of which air is extracted from the interior, and in the other air is directed into the vehicle. The cover has a flange 16 on its underside to which is pivoted a link 18 the lower end of which is pivoted to one end of an arm 20, the other end being pivoted to a fixed support 22. The front end of the cover is attached at 30 to links 24 pivotally connected at 32 to fixed brackets 33 and the rear end is attached to links 25 pivoted at 26 to angle brackets 27. Flanges 15a on the cover bed in rubber insertions 12 when the lid is closed. When the link 20 is moved to the left by its handle portion 20a, the link 18 will be raised, and the cover opened to face forwardly, swinging about the fixed pivots of the links 24. Similarly when the link 20 is swung to the right, the rear end of the cover is raised. A gauze screen supported by bowed members 36b prevents entry of dust &c.
Patent GB-774520-A (GB)
Title: Improvements in or relating to stands or the like for supporting containers for liquid
Inventor: TAYLOR NORMAN
IPC: B65G65/24
Filed: 1953-09-16
Abstract: 774,520. Tilting-appliances for casks. SPRINGCLERE PRODUCTS, Ltd. Dec. 16, 1954 [Sept. 16, 1953], No. 25647/53. Class 21. A tilting device for liquid containers comprises a container-carrier in the form of a cradle 38 pivoted at one end 37 to a body member 32, the cradle 38 being supported at its other end by resilient tension means 45 suspended from an upper portion 36 of said body and serving to increase the angle of tilt as the liquid is withdrawn from the container. A rod 47 secured to the cradle and extending through the downwardly biassed tongue 54, grips the rod 47 to prevent downward movement but permits free upward movement thereof. To load a barrel onto the cradle 38, the tongue 54 is raised manually and the cradle 38 is depressed and held in its lowered position by a hook 57. The barrel is then placed with its greatest diameter between the rubber sleeves 43 on the arms 41, 42 and the cradle is released from the hook 57. According to modifications the body 32 may be provided with legs, runners or wheels, the spring 45 may be enclosed, two or more different springs may be available, the spring may be replaced by hydraulic or pneumatic means and the spacing between the arms 41 and 42 may be adjustable.
Patent GB-171812-A (GB)
Title: Filled sack sewing machine
IPC: D05B13/00
Filed: 1920-09-07
Abstract: 171,812. Fairweather, W., (Singer Manufacturing Co.). Sept. 7, 1920. Sack-sewing machines.-In a machine for closing the mouths of filled sacks, the sack conveyer 29 and the sewing-machine 7 are driven from separate motors 11, 47 through fast and loose pulleys 9 and a clutch 90 controlled by separate treadles 27, 107 moving in transverse directions. The foot of the operator rests upon a plate 27, and by lateral movement depresses the curved treadle plate 107 controlling the conveyer clutch, and then moves the sewing-machine treadle 24 and control lever 19 laterally. The clutch piece 65 of a reversing-gear 59, 60, 61 is separately controlled by a lever 80 and, by it, the conveyer can be stopped or reversed. The con. veyer is reversed by means of the handle part 82, if it is desired to stitch over the sack mouth a second time, and, with the conveyer running reversely, a plate 81 projects into the path of the sacks so that when the sack which has been sewn reaches the plate, the lever 80 is moved and the clutch piece 65 is thrown over either to the forward running position or to an intermediate inoperative position depending upon the position of the plate on the lever 80. The conveyer and its driving gear are mounted on a frame 32, which can be moved vertically by screws 36, 37.
Patent GB-1076387-A (GB)
Title: Improvements in loose covers for seats
Inventor: COOK ALEXANDER JOHN
IPC: B60N2/60
Filed: 1965-06-17
Abstract: 1,076,387. Seat covers. MEDLOCK MANUFACTURING CO. Ltd. May 24, 1966 [June 17, 1965], No. 25780/65. Heading A4M. A loose cover (a) for a seat is formed in one -piece from a stretchable textile material, e.g. nylon, and is prevented from slipping when in position, by means of a pad (b) of foamed plastics material or latex bonded to the cover part which overlies the seat or base portion (c) of the seat. Further pads (b<SP>1</SP>, b<SP>2</SP>) may be bonded to the cover parts overlying the arms (c<SP>1</SP>) and the lower part of the backrest (c<SP>2</SP>). Tuck-in portions are provided at the edges of the seat cover part. The cover is drawn tight by an elastic band (d) or cord engaged in a hem of the cover beneath the seat.
Patent GB-1426506-A (GB)
Title: Device for automatic correction of out-of-balance in rapidly  rotating machine elements
IPC: F16F15/32
Filed: 1973-05-30
Abstract: 1426506 Balancing grinding wheels R B REINHALL 30 May 1973 [6 June 1972] 25797/73 Heading B3D [Also in Division F2U] A balancing device (e.g. for a grinding wheel) comprises a body 10 having a central chamber 36 containing fluid and a body 37 of lower density than the fluid, and arranged so that displacement of the centre of rotation of the body 10, and with it the body 37, from the centroid of the body, initiates the movement of masses to compensate for the out-of-balance. As shown, the fluid is pumped axially through the chamber, 36, proximity of the body 37 to one wall causes the fluid to flow faster locally with a reduction in static pressure, e.g. in line 33. This results in volume changes in chambers 28, 29 and also in chambers 22, 23 filled with a denser liquid, e.g. mercury. Pistons 18 ... 21 separating chambers 22, 23, 25, 26, and 28 to 31 may be replaced by a flexible wall, Fig. 4 (not shown).
Patent GB-330175-A (GB)
Title: Improvements in pull-out dining room tables and the like
IPC: A47B1/05
Filed: 1929-08-24
Abstract: 330,175. Taylor, I. Aug. 24, 1929. Expanding tables combined with receptacles.-In an extensible table the space between the side rails is formed as a receptacle for tablecloths, cutlery, and the like. The table shown comprises a central leaf 1 and two end leaves on runners 5 moving between pairs of side rails 4, 4<a>, the space 8 between which is enclosed at the bottom of a base 9 and at the top by a removable panel 11 in the central leaf 1. The panel may be raised slightly by a verticallysliding rod at one side of the table to enable it to be lifted up by the hand, and may be upheld by a strut 14. Specification 330,174 is referred to.
Patent GB-987914-A (GB)
Title: Thermoelectric compositions and devices
IPC: H01L35/16
Filed: 1962-07-05
Abstract: An N-type thermo-electric alloy comprises PbTe 70-95 mole per cent, SnTe 5-30 mole per cent, and a mixture of Pb 35-65 mole per cent, PbBr2 balance, the mixture making up 0.2-2.4 wt. per cent of the lead and tin tellurides.  The alloys may be prepared by melting the elements in the correct proportions, or mixtures of the tellurides with lead and lead bromide, in a sealed tube or ampoule, e.g. at 1000 DEG  C., followed by slow cooling and zone-levelling.
Patent GB-356460-A (GB)
Title: Improvements in and relating to telecommunication systems
IPC: H04B3/36
Filed: 1930-08-29
Abstract: 356,460. Two-way repeaters. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES, 26, Rue de la PepiniÞre, Paris. Aug. 29, 1930, No. 25873. Convention date, Jan. 8, 1930. [Class 40 (iv).] A two-way repeater is normally conditioned for transmission in the two directions alternately at a high frequency of alternation, but when signal currents are passing the alternation is cut out and the repeater is continuously conditioned in the direction required. In the arrangement shown, a single amplifier 12 is associated with lines 10, 11 by means of a rotary commutator 13, brushes 22 of which normally engage alternately with contacts 23, 24. When signals arrive over, say, line 10, a switching member 26 moves the drum 27 down. wards so that the brushes 22 now engage with continuous contact rings 1, 2, 4, 5. At the same time the other switching member 26 is disabled. The alternating control of all the amplifiers along a line or of all the amplifiers at a repeating station may be synchronized. Instead of a commutator, polarized or non-polarized magnets may be used. At a repeating station of the type comprising a separate amplifier for each direction, the amplifiers are rendered inoperative alternatively by electrical or mechanical means.
Patent GB-457358-A (GB)
Title: Improvements in catalytic hydrogenation process
IPC: C07C27/04
Filed: 1935-09-18
Abstract: Alcohols are obtained by hydrogenating glycerides in presence of a catalyst comprising an oxide of a hydrogenating metal, an oxide of chromium, manganese, vanadium, or molybdenum, and an oxide of an alkali or alkaline earth metal.  The reaction is effected at 190--400 DEG  C., and at pressures over 400 lb. per sq. p  in.  The preferred catalyst consists of oxides of copper, chromium, and barium, supported if desired on activated alumina. Instead of copper, zinc or cobalt or silver may be employed. Examples describe the hydrogenation of coconut oil, palm oil, Japan wax, cottonseed oil, and castor oil to the corresponding alcohols.  The subject-matter of Specification 433,549 is disclaimed.
Patent GB-344366-A (GB)
Title: Improvements relating to electrical switches
IPC: H01H19/11
Filed: 1929-08-27
Abstract: 344,366. Controllers. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl- Ufer, Berlin. Aug. 27, 1929, No. 26078. Convention date, Oct. 4, 1928. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 38 (iii).] Brake devices; overload release; with fusible cut-outs.-A rotary switch for controlling the motors of centrifugal spinning machines has four positions, viz. : An " off " and a " running " position, in which the switch handle will remain by itself ; and a " starting " and a " braking " position, in which the handle is spring-biased to the "off " position. The connections for the " starting position are the same as for " running," except that the fuses are not connected. In the " braking " position, two of the phases are crossed.