baber/WOPTO huggingface dataset:
Patent GB-1342037-A (GB)
Title: Method and apparatus for manufacturing insulated electric wire
IPC: H01B13/16
Filed: 1971-04-19
Abstract: 1342037 Coating wire by electro-phoresis SUMITOMO ELECTRIC INDUSTRIES Ltd 19 April 1971[14 Feb 1970 19 Aug 1970] 21380/71 Heading C7B A method of applying an insulating coating to electric wire comprises electro-phoretically depositing a first coating of a synthetic resin from an aqueous dispersion on to the wire and then electro-phoretically despositing a second coating of a synthetic resin from an aqueous solution on to the coated wire and then baking the resulting coated wire. In operation, the wire is passed through a first bath 3 containing the resin in aqueous dispersion and then through a second bath 8 containing the resin in aqueous solution, each bath 3 and 8 being provided with end troughs 2 and 7 respectively which receive any overflow from their respective baths due to the passage of the wire therethrough and which is returned to the baths 3 and 8 by way of sumps 5, 10 and pumps 6, 11 respectively. Electrodes 4, 9 are located in the bottom of the respective baths and a D.C. electric supply is connected to the wire respective electrode from a D.C. source 13. When the wire has passed through the second bath and end trough it is passed through a baking furnace 12 to dry and harden the coating. The electric current to the baths may be supplied to the baths by way of a variable resistor or by way of two independent circuits as shown in Fig.2  each circuit having its own D.C. source. In the embodiment shown in Fig.3 an intermediate treatment bath is located between the first and second baths, whereby surplus resin remaining on the film of electro-phoretic coating deposited in the first bath, is removed to prevent jeterioration of the solution in the second bath. At the same time the coated film on the wire from the first bathis swollen and wetted by an inorganic solvent or its mixture with water contained in the intermediate bath and is given a greater bond with the coating deposited in the second bath. The polarity of the electrodes in the baths may be the same or opposite, numerous examples in various concentration are given in the Specification as suitable aqueous dispersions and aqueous solutions and these include such dispersions as acrylonitritebutylacrylate acid phenol, polytetrafluoroethyline, and polyvinyl alcohol in the first bath and polyvinylformal and copolymer of bisphenol A and ethyline glycol monoacetate in the second bath. Suitable organic solvents, or a mixture of water and a water-soluble organic solvent for use in the intermediate treatment bath include dimethylformaldehyde, diamethylacetemide, ethyleneglycol, alkylmonoether of diethyleneglycol and diacetonealcohol.
Patent GB-640384-A (GB)
Title: Extruding metal sheaths on electrical cables
IPC: B21C35/04
Filed: 1947-08-06
Abstract: 640,384. Extruding. STANDARD TELEPHONES & CABLES, Ltd. Aug. 6, 1947, No. 21398. Convention date, Aug. 12, 1939. [Class 83 (iv)] In a press 12 for sheathing electric cables with lead &c. 36, the extrusion is stopped while a residue 38 remains in the cylinder 10 and the ram 15 and the cylinder-residue 38 are withdrawn to allow pouring of a fresh charge and resumption of extrusion after discarding the residue. The residue 38 breaks off at a neck 23 when the ram 15 is retracted, the ram face 14 having flared dovetails 27 which engage the charge before solidification. The neck 23 is an extension of a tapered ring 21 in the cylinder 10 co-operating with a two-branch passage 22 leading to the extrusion die. To reduce slag &c. inclusions and weld the new charge to the old a forked pouring tube (see Fig. 9, not shown) is used.
Patent GB-531455-A (GB)
Title: Improvements in and relating to apparatus for demonstrating electrical experiments
IPC: G09B23/18
Filed: 1939-07-24
Abstract: 531,455. Educational appliances. HANSEL, C. W. July 24, 1939, Nos. 21417 and 24983. [Class 146 (ii)] Electrical circuits are demonstrated by assembling unmodified electrical units and elements on a display panel together with conducting strips, supports and contacts in positions corresponding with the circuit diagram. The panel is uniformly apertured and may be in sections hinged to a support having provision for storing the instruments and elements. The latter consist of perforated or slotted conducting strips. perforated angle brackets, screwed bolts, studs, plugs and terminals, and bearing brackets. Wire connectors are also included. The support may carry adjustable brackets for a mirror and scale. Fig. 24 shows a potentiometer arranged on a panel 1 with resistances G, H supported on angle brackets 12, a top shelf 1f carrying an accumulator A and resistance box B and the base 1d supporting an accumulator A and rheostat I. Bolts 3, 5 support a millivoltmeter F, resistance wire C and scale D whilst plugs 6 are used for the strip and wire connectors 2, 17. The panel may be used for demonstrating electrolysis, induction, and the working of dynamos and motors. Telephone, telegraph, wireless and lighting circuits may also be demonstrated. Each panel aperture may be provided with a bolt in readiness for mounting from the front of the panel. Both Provisional Specifications describe additional fittings whilst the second Provisional Specification describes several arrangements for demonstrating the working of individual appliance, such as ammeters, galvanometers, and interrupters.
Patent GB-180941-A (GB)
Title: Improvements in loose leaf binders
IPC: B42F13/16
Filed: 1921-08-12
Abstract: 180,941. Engelland, J. Aug. 12, 1921. Post files; covers.-A loose-leaf binder comprises a cover having a keeper-plate 6 provided with keyhole openings for the reception of a detachable U-shaped spring member having notches at the lower end of each leg. The legs are compressed and passed into the larger portion . of the keyhole slots and are then released, the notched portions springing into engagement with the smaller part of the slots. The cover is provided with slotted stiffener 4 which the keeper plate embraces. The slots may be T-shape, and the U-shaped member formed of flat spring metal.
Patent GB-994241-A (GB)
Title: Electronic amplifier device
IPC: H01L21/00
Filed: 1963-05-29
Abstract: 994,241. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 29, 1963 [June 1, 1962 (2)], No. 21427/63. Heading H1K. A solid-state amplifier has a metal emitter electrode, a dielectric of 1000Š to 10,000Š thickness (in which avalanche multiplication may occur), and a metal grid, there being electron collecting means adjacent the grid. In the embodiment described the collector is constituted by a thin dielectric and a metal electrode, and electrons winch pass through the grid tunnel through the thin dielectric to the collector electrode. The Specification states that a PN junction may instead be used as a collector. In the embodiment described, the fabrication of the device starts with the evaporation on to a glass sunstrate 8 of the material of the collector electrode 6. This may be tantalum, gold, chromium or platinum, for example. On top of this a layer 10 of a dielectric such as magnesium fluoride is deposited -this has a high breakdown strength and a sharp breakdown characteristic. The thickness of the layer, about 50Š, is less than the electron mean free path in the material. The grid 12 is formed on this layer by a deposition step involving masking. A suspension of polythene spheres (ca. 800-880Š) in water is mixed with methanol and coated uniformly on the dielectric. The liquid is evaporated leaving the spheres adhering to the surface in a statistically uniform random distribution, and metal is vacuum evaporated from a heated filament, Fig. 3 (not shown), to obtain a layer less than 1Á thick. The spheres are then washed away or dissolved in toluene to leave an electrically continuous grid. To help the spheres to adhere to the dielectric initialy a chemical binder may be added to the coating mixture or the spheres may be electrostatically charged. The main dielectric layer 14 is then deposited, for example a film of silicon monoxide 1000- 2000Š thick, and the emitter electrode deposited to complete the device.
Patent GB-858940-A (GB)
Title: Improvements in or relating to apparatus for the clamping, unclamping and controlledpositioning of a workpiece
IPC: B23Q3/06
Filed: 1957-07-05
Abstract: 858,940. Work-holders and gauging-devices for transferring blanks; screwing-up nuts. REGIE NATIONALE DES USINES RENAULT. July 5, 1957 [July 5, 1956], No. 21428/57. Class 83 (3). Means for clamping a workpiece on a holder M and unclamping it after a machining-operation, comprises means 35, Fig. 3, for checking the position of the work, such as a crankcase P, when it has been deposited on the holder by a transfer-device, and nut-runners, such as 52, Fig. 7, for clamping and unclamping the work. The correct positioning of the crank-case is checked by moving the head 35, Fig. 3, against a fixed stop 37, to bring into contact with the crank-case three feelers such as 42, 43, which give magnified indications of their movements to contacts such as 45, 46. The crank-case P, Fig. 2, is clamped down on supports 1 by a bar 9, which is attached to a threaded rod 14 engaged by a nut 12 and is steadied by rods 17. The crankcase is clamped laterally against a stop 22 by a lever 23 operated by a nut 30 engaging a threaded rod 28. A device for screwing-up the nuts 12, 30, comprises two electric nut-runners 52, Fig. 7, supported by end-plates 53, and resilient caps 53<1> which allow rotational and slight upward movement of the nut-runner casings. A crank-arm 54 is attached to each casing, and can move a rod against a spring to allow a switch 63 to stop the screwing-up operation when a certain torque is reached. In operation, a crank-case is placed automatically or manually on the holder, and the checking-head 35 is advanced. If all the contactors are not actuated, the machine is stopped; otherwise, the holder is moved to the clamping-station. The nut-runners 52 then operate until stopped by the switches 63 at the appropriate torque. The crank-case then passes through machining stations to the unclamping station. At the unclamping stations, impact nut-runners 67, Fig. 10, on a bridge 68, are lowered by cranks 72 and unclamp the nuts 12, 30. As the work-holding lever 23, Fig. 2, is moved, it raises a rod 34 to contact a feeler and stop the appropriate nut-runner. Similarly the bar 9 raises a rod 20 to stop the other nutrunner. In a modification, the crank-case P, Fig. 13, can be placed on its holder 101 from above. Nuts such as 106 are then rotated to swing dogs 102 through friction-means 112, so that one end of each dog contacts a fixed stop on the holder, and the other end engages the crankcase. Further rotation of the nuts then clamps the crank-case in position, each dog pivoting on a spherical seating 110, and contacting the holder and work by rounded surfaces 122, 123.
Patent GB-1128720-A (GB)
Title: A clamping device for use with carpenters' benches and the like
IPC: B25H1/10
Filed: 1967-05-09
Abstract: 1,128,720. Work benches. S. O. PERSSON 9 May, 1967 [10 May, 1966], No. 21458/67. Heading B4X. A clamping device used with a carpenter's bench comprises a plate 1 which is countersunk in the bench, the plate having on the underside, at each end thereof, a bearing 3, a clamping screw 4 mounted for rotation in the bearings and fixed against axial movement therein by a locking washer 5, an elongate slot 7 being provided in the plate, the edges of the slot serving to guide the side faces of a member 9 which is screwed on the clamping screw 4 and has an abutment portion upstanding from the slot. The slot 7 at its inner end has a widened portion 10, the width of which conforms to the total height of the member 9. As the member 9 by rotation of the screw 4 enters the widened portion 10 of the slot, the member 9 ceases to be guided and swings into a recumbent position so that the surface of the bench is free from upstanding projections. The widened portion 10 of the slot 7 is of greater extension at one side of the slot 7 so that the member 9 can be rotated through 180 degrees to provide a low or high abutment portion by reason of the eccentric position of the screw 4 relative to the member 9.
Patent GB-1516391-A (GB)
Title: Membrane stacks
IPC: C01B13/02
Filed: 1975-05-20
Abstract: 1516391 Membrane stacks for oxygen-enriched air GENERAL ELECTRIC CO 20 May 1975 [4 June 1974] 21481/75 Heading B1L An assembly for providing oxygen-enriched air comprises first and second groups 61, 62, (only one of each is shown) of selectively permeable membrane cells each having membranes on opposite surfaces of a rigid support 64, the membranes being smaller than the support surface, each support including a passage 70 for the removal of enriched air from the interface of the membrane and support connected to an outlet 80, means 68 for sealing the edges of the membranes to the periphery of their respective supports, resilient means 86 for mounting and sealing the edges of the cells, the first group of cells alternating with the second group providing flow channels at opposite ends for a series flow path from the air inlet 53 to the raffinate exhaust. Each passage for enriched air may lead to a common manifold or alternately to two subflows whose pressure differential may be monitored to detect leaks. The flow may finally pass through a bacterial filter before exiting to a device e.g. for inhalation. The whole assembly includes a fan, compressor, heat exchanger, condenser, scrubber for removing NO 2  &c.
Patent GB-640771-A (GB)
Title: New or improved control mechanism for an epicyclic gear-box
IPC: F16H63/18
Filed: 1948-08-16
Abstract: 640,771. Change - speed control. GUY MOTORS, Ltd., and ROBERTS, G. P. Aug. 16, 1948, No. 21554. [Class 80(ii)] To effect operative rotation of the control levers 29 of a cam-shaft actuated epicyclic gear from a gear lever 12 moving in a normal H gate, the lever 12 moves sideways in the gate to pick up one or other of quadrants 20-22 meshing, with mutually different gearing ratios, quadrants 24-26 on the spindle 27 of the lever 29. Equal movements of the lever 12 in a direction at right angles then rocks the lever 29 by different angular amounts according to the quadrants engaged. As shown, the lever is movable on either side of a central neutral position to engage (a) first and second speeds through quadrants 21, 25, (b) third and fourth speeds through quadrants 20, 24 and (c), pressing back a resiliently-: mounted reverse stop 33, reverse gear through quadrants 22, 26. The respective positions of the lever 29 for these speeds are shown by the legends 1-4 and R; Fig. 5. If desired, movement of the shaft 27 through the quadrants 22, 26 can also effect engagement of a fifth speed. A spring mounted ball 30 resiliently locates the lever 12 in its neutral and operative positions. According to the Provisional Specification, the quadrants 20, 24 and 21, 25 operates first second and third/fourth speed changes respectively, and the stop 33 may be replaced by a positive reverse stop.
Patent GB-170380-A (GB)
Title: Improvements in or relating to tables and the like
IPC: A47B1/05
Filed: 1920-07-17
Abstract: 170,380. Hobbs, J. W., and Hobbs, E. W. July 17, 1920. Expanding tables.-Ex - tensions 18, 28 of the table-top &c., are mounted on runners 15 provided with pins 16 slidable in curved grooves 17 formed in the side rails 11. The extensions, when pushed in, lie snugly beneath the table-top with the pins 16 in the lower part of the grooves 17 and when drawn out are held in position by means of wedges 19. Each wedge 19 is carried on a thin plate 20 connected to the runner 15 by pins 22 and slots 21, a spring 23 tending to keep the plate in a forward position. A plate 24 hinged at 25 to the extension 18 or 28 carries a handle 26 by means of which the extension may be drawn out. When the wedges 19 come into engagement with the side rail 13 of the table, further movement of the extension 18 causes the pins 22 to travel in the slots 21 and extends the spring 23. The leaf 18 is then in the position shown in chain lines and can be turned into the full-line position about the pins 16. This movement carries the wedges 19 clear of the rail 13 and allows the spring 23 to draw the wedges into the space above the rail, thereby locking the extension 18 in position. A reverse movement of the plate 24 replaces the extension 18 or 28 below the table top. A modified form of wedge is described.
Patent GB-748363-A (GB)
Title: Improvements in or relating to fluid actuated valves
Inventor: COX LAWRENCE ALFRED
IPC: F16K15/14
Filed: 1953-08-05
Abstract: 748,363. Respiratory appliances. BRITISH OXYGEN CO., Ltd. Aug. 4, 1954 [Aug. 5, 1953], No. 21626/53. Class 81(2). [Also in Group XXIX] A combined inspiratory and expiratory valve for use with a lung inflating apparatus of the bellows type comprises a movable member such as the diaphragm 11 separating an inlet 14 adapted to be connected to the bellows of the lung inflating apparatus from an outlet 15 adapted to be connected to a face mask or an endotracheal tube, and a non-return valve 19 mounted on the movable member, the arrangement being such that under the influence of a pressure wave delivered by the compressor the movable member moves to cut off the outlet 15 from vent apertures 18 before the valve 19 opens to permit fluid to pass to the outlet port 15 and that between the pressure pulsations the member 11 moves to open the connection between the outlet 15 and the vent apertures and simultaneously the valve 19 is closed to prevent return flow to the inlet 14. The outlet 15 is formed by a tube 16 the lower end of which forms a seating 17 spaced a short distance from the diaphragm 11 when the latter is in the normal unflexed position. The effective area of the vent may be varied by an adjustable obturator (not shown) or the vent may be provided with a spring-loaded valve the loading of which may be fixed or manually adjustable.
Patent GB-1016436-A (GB)
Title: Warp beam let-off mechanism
IPC: D03D49/06
Filed: 1962-06-05
Abstract: 1,016,436. Warp let-off motion for looms. STEEL HEDDLE MANUFACTURING CO. June 5, 1962 [June 13,1961], No. 21648/62. Heading DIE. A variable-speed warp beam drive controlled by a movable back rest includes a double V-pulley having, a middle flange E which is loose on its shaft. The beam is driven by belts 32, 58, and the double pulley, is swung about a pivot 43 by the backrest in accordance with the tension in the warp, thereby varying its distance from the pulleys B, C, so causing the flange E to slide along its shaft to vary the velocity ratio of the drive.
Patent GB-585193-A (GB)
Title: Improvements in electric battery lamps or torches for use in under water vessels or by divers, miners and the like
IPC: F21S2/00
Filed: 1944-11-04
Abstract: 585,193. Battery lamps. BEAGLEY, G. H. L. Nov. 4, 1944, No. 21654. [Class 39 (ii)] A battery lamp for miners, divers, &c. incorporates in its base cap 1 a switch which is operable manually and by air or water pressure. A screwed ring 12 clamps an insulating disc 6 on to a diaphragm 4 the periphery of which is sealed preferably by brazing to the cap 1. A contact element 8 is pressed outwardly by a spring 9 and secured by nuts 11. A centrally bored boss 13 houses a plunger 14 and a cap 15 screwed on to the boss may move the plunger inwardly to force the diaphragm into contact with contact 8. Air or water pressure acts directly upon the diaphragm through the apertures 16 or 17.
Patent GB-709400-A (GB)
Title: Vat grey to black dyestuffs comprising polyamino dibenzanthrones and isodibenzanthrones
IPC: C09B3/30
Filed: 1951-09-14
Abstract: The invention comprises polyamino dibenzanthrone or isodibenzanthrone containing 3 to 5 amino groups, and a process of preparing polyamino dibenzanthrones or isodibenzanthrones having 2 to 5 amino groups by reacting the corresponding halogen bodies at 180-250 DEG C with ammonia under pressure, preferably in presence of copper or a copper compound.  The products dye cotton grey to black shades.  The halogen bodies referred to are prepared by halogenating dibenzanthrones, is isodibenzanthrones, or dibenzanthronyls in, e.g. chlorsulphonic acid or aluminium chloride, in the presence of e.g. sulphur, iodine, or aluminium chloride (see Specifications 703,296 and 708,752).  In examples, a di-, tri-, tetra-, and pentabromodibenzanthrone, and a tetra-bromoisodibenzanthrone are each heated with ammonia under pressure at 200 DEG C in presence of copper sulphate.
Patent GB-479457-A (GB)
Title: Improvements in the production from continuous filaments of yarns exhibiting the characteristics of staple fibre yarns
IPC: D01G1/10
Filed: 1936-08-06
Abstract: 479,457. Yarns; stapling filaments. TAYLOR, W. I., GIBBINS, L. B., and WOODRUFF, A. H. Aug. 6, 1936, No. 21689. [Class 120 (iii)] In converting a bundle of continuous filaments into a yarn containing staple fibres by passing the bundle in sliding contact with a moving cutting surface and pressing the filaments against the surface, the cutting effect of the surface is varied so that severance of the filaments takes place only at intervals along the length of the bundle and the yarn produced has at intervals along its length alternate parts of continuous filaments and parts containing staple fibres. The varying cutting effect may be produced by intermittently varying the action of the cutting surface upon the filaments or by varying the resistance to cutting of the filaments at intervals along their length, or by a combination of both these expedients. The resistance of the filaments to the cutting action may be varied by coating the filaments at intervals with a size, wax, lubricant, or the like, by straining, saponifying, partially coalescing or otherwise increasing the hardness of the filaments at intervals, by softening the filaments at intervals along their length, by electrifying the filaments at intervals along their length so that they will spread over the cutting surface at such intervals, or by varying the denier of the filaments along their length. The cutting action of the cutting-surface may be varied by raising the roller 4, which presses the bundle 1 on to the fluted cutting roller 3, at intervals from the roller 3, a lever 16 pivoted on the bearing of the roller 4 being actuated from a cam 19 to cause a toe 21 on the lever to act upon the spindle 22 of the roller or the pressing action of the roller 4 may be augmented at intervals by means of a cam-actuated spring. In other forms a part of the sleeve of the roller 4 is cut away to expose the sponge rubber core beneath it, a part of the surface of the fluted cutting roller is cut away, a circumferential groove is cut in the fluted cutting roller at a point axially removed from the middle of the nip of the rollers and, at intervals, the filaments are caused to run into the groove so that they are not severed, or a part of the surface of the cutting roller is left without flutes. In further forms, the cutting action is varied by modifying the tension on the filaments as they are fed between the rollers, or by varying the angle at which they are fed to the rollers. Specifications 424,683, 424,752, 424,830, and 424,879 are referred to.
Patent GB-423741-A (GB)
Title: A process for treating hair for so-called permanent waving
IPC: A61K8/65
Filed: 1933-08-02
Abstract: 423,741. Hair - waving processes. STRONG, J. N., 3, Barston Road, West Norwood, London. Aug. 2, 1933, No. 21690. [Class 131] A process of permanent hair-waving comprises impregnating the tresses with an aqueous emulsion of a mineral or vegetable oil and an alkali borate, sulphite, carbonate or hydroxide, either before or after winding the tresses on the curlers, and then applying heat thereto. The mineral oil may be either of the paraffin or asphaltic type, and suitable vegetable oils are olive, linseed, maize or cotton seed oil. Gelatine, agar agar, Irish moss or triethanolamine may be used as the emulsifying agent.