baber/WOPTO huggingface dataset:
Patent GB-967533-A (GB)
Title: Arrangement for the correct reception of binary-coded information items
IPC: H04L1/20
Filed: 1963-03-29
Abstract: 967,533. Telegraphy. STANDARD TELEPHONES & CABLES Ltd. March 29, 1963 [April 5, 1962], No. 12585/63. Drawings to Specification. Heading H4P. In a telegraph system in which errors are corrected by repetition of faulty signals, each bit of a received signal is fed to a device which determines whether or not the amplitude of the bit lies within one or other of two preset ranges, corresponding to mark and space bits. Repetition is requested if the amplitude lies outside the ranges, the repetition request signal itself being checked at the main station. The system described uses an error-detecting code, and errors detected by way of the code also cause repetition. The return channel normally carries a signal having positive polarity, which indicates that the receiver has detected no error. The signal is reversed in polarity when a repetition is to be started, the transmitter receiver including a device which checks the amplitude of the return signal. Repetition is initiated if the return signal is negative or outside a preset positive amplitude range.
Patent GB-528583-A (GB)
Title: Improvements in micrometer measuring devices
IPC: G01B3/20
Filed: 1939-04-27
Abstract: 528,583. Tools for setting out work ; scribing blocks. KING, W. J. April 27, 1939, No. 12612. [Class 61 (ii)] [Also in Group XIX] Relates to beam calliper gauges of the type having a pair of relatively movable parts 2, 3 a beam 8 on which one of the parts slides, and a micrometer 4, 16 adjustable on the beam and connected to the part 3 so as to give the latter a fine adjustment, and comprises a pair of plungers 12 adapted to engage apertures 7 in the beam to lock the micrometer element in adjusted position. The beam is of triangular section and a screw 10 passes through a plate 11 carrying the two plungers 12 and serves to lock them in position either engaged or disengaged. In a modification the fixed jaw 2 is formed as the base of a scribing block and the moving jaw 3 has clamped to it a scriber.
Patent GB-909377-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: ROBERTS GEORGE NELSON
IPC: H01L21/00
Filed: 1961-04-07
Abstract: 909,377. Semiconductor devices. STANDARD TELEPHONES & CABLES Ltd. April 7, 1961, No. 12627/61. Class 37. A pellet 4 of significant impurity such as indium and gallium is first pressed to adhere to the body 1 of semiconductor such as germanium by means such as a plunger 3 operating in a tube 2, and then the body and impurity are heated to provide an allayed junction electrode. The initial heating stage takes place in an atmosphere containing oxygen so that the resulting thin oxide layer restrains the molten impurity material to limit the area of the junction.
Patent GB-398284-A (GB)
Title: Improvements in and relating to inking pads
IPC: B41K1/48
Filed: 1932-05-02
Abstract: 398,284. Stamp-inking pads. CLEAVER, H. and FELCE, E., 8, Brownlow Street, London. May 2, 1932, No. 12646. [Class 100 (ii).] In an inking-pad for rubber stamps &c. of the kind in which a movable ribbon is used, the ribbon lies in two laps, the upper passing over a support and the lower over inkimpregnated elements. A flanged metal frame 12, Figs. 2 and 3, is adapted to fit into the usual box and has mounted in it two rollers 13, 13<1> round which passes an endless ribbon 21. Between the two caps of the ribbon lies a composite pad bound together by a sewn cloth binding (not shown) and comprising a support surface 15 of cork or the like, stiff cardboard 16, greaseproof paper 17, a felt sheet 18 soaked with glycerine or oil, blotting-paper 20, and an ink-impregnated felt sheet 19. Pressure of the stamp on the upper lap of the ribbon and the upper surface of the pad serves to ink the lower lap of the ribbon. To tension the ribbon, the spindle of the roller 13 lies in slots in the frame 12 and is pressed outwards by a spring 23. A knob for traversing the ribbon is provided on one or both of the roller spindles. The ribbon may be arranged to pass between two ink-impregnated elements. In the modification shown in Fig. 5, the ribbon is advanced automatically by ratchet mechanism comprising a loose ring 32, balls 31, and a ratchet 30 fast to the spindle of the roller. The pad 35 is depressed by the pressure of the stamp against the action of a spring 36, and oscillates the ring 32 by means of a pin 33 on the ring which engages a slot in the light metal frame 34 about the pad. The ribbon may be traversed on either the upward or downward working of the pad, and may be arranged to have a longer path by means of auxiliary rollers or rods. Alternatively the drive may be through auxiliary rollers, which may be inking-rollers, or both laps of the ribbon may pass over the inking- pad. The ribbon is preferably woven in tubular form, cut to the desired width, and has its edges treated to prevent unravelling. Specification 379,775 is referred to.
Patent GB-375750-A (GB)
Title: Improved means for damping the oscillations of electrical conductors
IPC: H02G7/14
Filed: 1932-05-02
Abstract: 375,750. Damping cable vibrations. VEREINIGTE ALUMINIUM-WERKE AKT.-GES., Lautawerk, Lausitz, Germany. May 2, 1932, No. 12651. Convention date, May 2, 1931. [Class 36.] Vibrations of overhead conductors, particularly in the neighbourhood of a suspension clamp A, are damped by a beam a suspended directly at the point b from the conductor S and engaging at its ends with guides d<1>, d2 having slots allowing limited vertical play of the beam.
Patent GB-455785-A (GB)
Title: Device for television transmissions
IPC: H04N5/272
Filed: 1935-04-27
Abstract: 455,785. Television transmitters. VRABELY, T., 84, III 29, Dohany Utca, Budapest. April 27, 1935, No. 12675. Convention date, April 27, 1934. [Class 40 (iii)] A foreground 3 and a background 4 are scanned separately and synchronously, to produce a single series of signals representing foreground and background, and the foreground is placed in front of a supplementary background illuminated more intensely than the foreground, and signals corresponding to the supplementary background are prevented from reaching an aerial 10. The supplementary background may be of a colour which is filtered from the light illuminating the foreground. A lead from an output amplifier 12 in the foreground amplifier 6 and not modulating the aerial is connected to the grid of a parallel amplifier 11, which does modulate the aerial, to bias this amplifier to cut-off when the strongest signals occur, Fig. 3 (not shown). Alternatively a neon tube in the anode circuit of the amplifier 12 illuminates a photo-electric cell, the amplifier of which is connected to the grid of the amplifier, Fig. 4 (not shown). The amplifier 12, Fig. 1 (not shown), or a separate photo-electric cell 25 renders the background amplifier 8 operative while the supplementary background is being scanned. A prism 21, or an inclined glass plate, Fig. 5, (not shown), divides the light from the foreground in two parts, of which the smaller is incident through a colour filter on the cell 25. Alternatively, a lens projects light, which is reflected by a photo-electric cell 5, receiving light from the foreground, on the cell 25. Specification 417,282 is referred to.
Patent GB-729853-A (GB)
Title: Improvements in or relating to zip-fasteners
IPC: A44B19/12
Filed: 1953-05-07
Abstract: 729,853. Sliding clasp fasteners. NAGEL, J. May 7, 1953 [May 13, 1952], No. 12718/53. Class 44. A sliding clasp fastener in which the two parts to be brought together by the sliding clasp consist of lengths of coiled wire, one wound left-handed and the other wound right-handed, wherein the wires are so bent before winding that the coils have regular polygonal shapes, one being four-sided and having a pair of opposite corners bent in one direction away from a plane at right angles to the axis of the coil and the other pair of opposite corners similarly bent in the opposite direction, whereas the other coil has a multiple of four sides and has sides parallel to planes normal to the axis of the coil alternating round the coil with sides inclined to such planes. A wire 1, Fig. 1, bent to form opposed corners 2, 4 and 3, 5 is wound to form the left-handed coil 19, Fig. 2, of square crosssection. The length of wire corresponding to one turn of the coil 19 is indicated at a Fig. 1. Another wire 6, Fig. 4, of the same diameter as the wire 1 and bent to form opposed corners 7, 11 ; 8, 12; 9,13 and 10, 14, is wound on a larger mandrel to form a right-handed coil 20, Fig. 7, of octagonal cross-section. The length of wire 6 corresponding to one turn of the coil 20 is indicated at b, Fig. 4. The corners 2, Fig. 2, of the coil 19 are connected to the weft threads 23 of a webbing 21, Fig. 7, whilst the side portions 17 of the coil 20 are connected to the weft threads 23 of an opposed webbing 22. When the coils are brought together in known manner the corner portions 3 of the coil 19 engage between the side portions 15, 16 of the coil 20. The points of contact 26, 27 of the coil 19 lie in a plane containing its axis whilst the points of contact (only one point 28 shown) on the coil 20 are contrived in a plane parallel to but slightly to one side of the axis of that coil. With this construction the overall width of the coupled coils will be less than that obtained in normal fastenings employing coils of equal diameter. Moreover there is no appreciable couple tending to distort the coils.
Patent GB-312152-A (GB)
Title: Improvements in steam boilers
IPC: F22B21/34
Filed: 1929-04-24
Abstract: 312,152. Wood, W. R. May 21, 1928, [Convention date]. Dampers for controlling superheat.-A superheater 36 is placed in a space between the top 40 of a furnace-shaped boiler and the furnace roof, which is formed by rows of tubes 23 connecting the header 20 at the top of the front tube wall with the drum 7 of the tube bank 9. Adjustable baffles 38, 37 forming a continuation of a baffle, 13 at the front of tube bank 9 cause, the furnace gase.s to pass upwards through the tubes 23, over the superheater and then downwards through the tube bank to the outlet 35.
Patent GB-382888-A (GB)
Title: Improvements in percussive tools
IPC: B25D11/10
Filed: 1932-05-04
Abstract: 382,888. Percussive tools. SVENSKA HAMMARAKTIEBOLAGET, 61, Regeringsgatan, Stockholm. May 4, 1932, No. 12843. Convention date, May 12, 1931. [Class 124.] A percussive tool has a motor driven rotary sleeve 4 surrounding a striker 11, the latter obtaining its longitudinal motion from the centrifugal action of the balls 12 on the surfaces 13. The " spring " action for the cushioning and return of the anvil block or tool socket 8 is obtained by similar balls 14 rotating with the sleeve and acting on the double conical surface 15. The anvil block is held out of range of the striker during idling by the balls 14 entering the groove 16.
Patent GB-271855-A (GB)
Title: Improvements in or relating to tap-changing mechanism for electrical transformers
IPC: H01H9/00
Filed: 1927-05-13
Abstract: 271,855. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Hill, L. H., and Dann, W. M.). May 27, 1926, [Convention date]. Regulating transformers.- Relates to tap changing mechanism for variable ratio transformers, and comprises a main driving shaft 1 arranged to operate circuit breakers 39 forming part of the tap changing system and arranged to be selectively driven through reducing gear 6 either by a motor 2 or by a hand wheel 17. Provision is made for interrupting the motor control circuit, which comprises a pilot switch system not described, releasing the motor brake 8, and bringing into operation means for locking the shaft 1 against rotation at positions corresponding to the tap switches. The manual operating means is carried on a lever 19 pivoted at 18 and is adapted for engagement with the shaft 5 at 15. The lever 19 is provided with an extension 21 engaging a stop device 22 and has a pointer for indicating when the manual means is in operation. The lever 19 is also provided with a rearward extension pivotally connected to a crank arm 26 so that movement of the manual operating gear into engagement causes a partial rotation of a shaft 27 which is communicated to a shaft 29 carrying an arm 30 adapted to break the motor control circuit at 32 and to release the brake 8. At the same time a member 43 carried by a bracket 42 pivoted on the shaft 29 and normally held in a raised position by a bracket 41 fixed to the shaft 29, is allowed to fall into engagement with a ring 36 carried by the driving shaft 1 and having notches 37 corresponding to the tapping positions. Rotation of the shaft 1 is arrested by engagement of the device 43 with one of the notches 37, further rotation being effected when desired by raising the device 43 in opposition to springs 44 connecting the brackets 41, 42.
Patent GB-833042-A (GB)
Title: Polymerisation process
Inventor: RAYNER LAURENCE STEPHEN
IPC: C08F14/00
Filed: 1957-04-23
Abstract: Halogen-containing monoethylenically unsaturated monomers are polymerized by bringing them into contact under polymerizing conditions with the product obtained by treating (a) a zinc or cadmium alkyl, cycloalkyl, aryl or aralkyl or an alkyl, cycloalkyl, aryl or aralkyl zinc or cadmium halide, e.g. a half chloride, with (b) a compound of a metal occupying any of the 4th to 6th places after the inert gases in one of the long periods of the Bohr-Thomsen periodic table of elements.  The monomer may be vinyl chloride, (a) may be zinc or cadmium diethyl and (c) may be a titanium or vanadium compound, e.g. titanium tetrachloride or tertiarybutyl titanate.  The reaction may be effected in inert solvents or diluents, e.g. hydrocarbons and petrol-ether, optionally together with diethyl ether, or excess of the monomer. The catalyst may be decomposed by treating with water, steam or an alcohol, e.g. methanol and butanol, and the product washed with methanol, acid, e.g. hydrochloric acid, or alkali.
Patent GB-434704-A (GB)
Title: Improvements in and relating to concrete mixers
IPC: B28C5/08
Filed: 1935-05-01
Abstract: 434,704. Concrete mixers. FAURE, J., Rue Dorian, Firminy, Loire, France. May 1, 1935, No. 13001. Convention date, March 6. [Class 86] A transportable concrete mixer comprises a pair of side plates a, b and a connecting plate c forming a frame which is mounted on road wheels and furnished with openings e for the drum, the driving gear for the mixer being mounted on a base plate k mounted between the side plates a, b. The rollers on which the drum rotates are carried in seatings g and the charging hopper may be mounted on a part j, or, in an alternative form, in which the drum is arranged longitudinally, may slide up guides formed in the side plates.
Patent GB-773522-A (GB)
Title: Improvements relating to ultra-high frequency pulse receivers
IPC: H03L7/04
Filed: 1952-05-22
Abstract: 773,522. Automatic frequency and voltage control systems. BRITISH THOMSONHOUSTON CO., Ltd. May 22, 1952 [May 22, 1951], No. 13002/52. Class 38 (4). [Also in Group XL (c)] A klystron local oscillator 1 feeds the receiver mixer through a cavity resonator 4 forming part of a frequency discriminator 4, 7, 8, as described in Specification 721,539 and the input from the resonator to the mixer is rendered constant in amplitude by a detector 12 coupled to the resonator acting through a voltage reference circuit 13, e.g. including a potentiometer and bias source, and a servomotor system, mechanically on the cavity of the klystron to mistune it from the frequency of the klystron oscillator to a constant power output. Further, an A.F.C. loop, including the discriminator 4, 7, 8, restores any frequency deviation of the oscillator from that of the standard resonator 4 by varying the voltage of the reflector electrode consequential on any detuning produced by deforming the klystron cavity. The crystal detector 12 may also be the receiver frequency changer. As shown applied to a radar transmitter-receiver, the transmitting magnetron 21 and cavity resonator 4, and through it the local oscillator 1, are varied in tuning by a common control B. Further the adjustment of the resonator tuning is effected through a differential gear 22 responsive also to the I.F. of the receiver (derived from the resonator 4 and returning radar pulses) and operating to produce fine control of the frequency difference between the magnetron 21 and cavity resonator tuning. In a modification the power output of the resonator to the receiver frequency changer is maintained constant by automatically controlled movement of a variable attenuator between the local oscillator and resonator 4.
Patent GB-946699-A (GB)
Title: Improvements in or relating to reinforced webs
Inventor: WEBB ALFRED RUSSELL
IPC: C09J7/21
Filed: 1961-04-11
Abstract: An insulating tape is produced by impregnating a web with a solution of a curable elastomer, a phenol-aldehyde curing resin, and a catalyst of the formula M(OR1)(OR2)(OR3)(OR4) where M is titanium, zirconium, hafnium, or thorium and R1-4 are substituted or unsubstituted alkyl or aryl groups followed by heating to evaporate the solvent and cure the elastomer.  The elastomer may be partially degraded natural rubber, butyl rubber, polychloroprene, polyisoprene, or butadiene -styrene, -methacrylate, -acrylate, or copolymer. 5-80% of curing resin based on the elastomer may be employed.  The catalyst may be titanium or zirconium tetrabutoxide, or the reaction product in which one or more butoxy groups are replaced by a phenoxy group, or titanium or zirconium tetraisopropoxide. 2-30 of catalyst based on the curing resin may be employed.  The solution may also contain hydrogenated glyceryl ester gum, titanium dioxide, and an antioxidant.  The solvent may be petroleum ether having a boiling range of 70-90 DEG  C.  The concentration of the solution may be such that after impregnation the web contains 50-150% of elastomer plus curing resin.  The web may be creped or uncreped paper and may be produced from manilla, spruce, or jute pulp. It may also be a non-woven web of cellulosic fibres of textile length arranged predominantly in one direction as by carding. Its weight may be 10-100 gm/sq. m. A normally tacky and pressure sensitive adhesive may be subsequently applied.ALSO:An insulating tape is produced by impregnatcarrier in a direction at right angles to the sliver path is prevented by the engagement of projections 8e with the flanges of the boss of the intermediate driving roller, and in Fig. 4, by the provision of bosses on the centre arbor of driven rollers between the side plates of the part 37.  Longitudinal movement can alternatively be prevented by using two intermediate driving rollers above the fibre path with a single intermediate driven roller pressed upwardly between them.  The springs may be replaced by coverings of soft rubber etc. on the driven rollers, the geometry of the arrangement then ensuring that the driven rollers are urged into engagement with the driving rollers.
Patent GB-164722-A (GB)
Title: Improvements in or relating to valves
IPC: F16K15/20
Filed: 1921-05-07
Abstract: 164,722. Sahuc, J. A. June 9, 1920, [Convention date]. Tyre valves.-A tyre valve has a compressible valve member of such dimensions that it can be inserted through the outer end of the valve casing. The valve member D, 3 m.m. in diameter and 5 m.m. long, has a cylindrical centre part with conical ends, and is attached to a spindle E 35 m.m. long having the outer end bent to form a ring F. The conical valve seat is formed at one end of a restricted passage 2 m.m. in diameter and 7 m.m. long and tapered on the outward - side to facilitate the insertion of the valve member. A rubber washer L for the dust cap t is sprung into a groove in the valve casing. The Specification as open to inspection under 'Sect. 91 (3) (a) comprises also a modification in which the seat member is formed in a supplementary casing detachably secured to the main casing, and, in a further modification, the valve member is forked to engage slots in the valve casing and is adapted to be pulled to its seat by a nut screwed on to the valve spindle. This subject-matter does not appear in the Specification as accepted.
Patent GB-749763-A (GB)
Title: Improvements in and relating to the preparation of quaternary ammonium salts of propanolamines
Inventor: ADAMSON DONALD WALLACE
IPC: C07D295/08
Filed: 1953-05-11
Abstract: A process for the preparation of compounds having the general formula <FORM:0749763/IV(a)/1> comprises reacting a quaternary ammonium ester of the formula <FORM:0749763/IV(a)/2> (wherein R1 and R2 are identical and are aryl groups optionally substituted by alkyl or alkoxy groups, the group NR3R4 is a piperidino or pyrrolidino ring, R5 is an alkyl group having from 1 to 3 carbon atoms, R6 is hydrogen or methyl, R7 is an alkyl group and A- is an anion) with a lithium or magnesium derivative of the group R1 and then hydrolysing the resulting compound.  In an example, ethyl b -pyrrolidinopropionate (prepared by reacting pyrrolidine with ethyl acrylate) is reacted with methyl iodide, the resulting quaternary compound is reacted with phenyl lithium and the product hydrolysed to N-methyl-3-hydroxy-3:3 - diphenylpropylpyrrolidinium iodide.  N-methyl - 3 - hydroxy - 3:3 - diphenylpropylpiperidinium iodide is prepared in an analagous manner. Specification 627,139 is referred to.
Patent GB-268573-A (GB)
Title: A new or improved electric lamp holder
IPC: H01R33/46
Filed: 1926-05-25
Abstract: 268,573. Ashdown, H. E. May 25, 1926. Binding-posts. - The contact pins of an electric lamp holder are screwed into plungers sliding in the body of the holder and clamp the leads therein. The body a is preferably moulded out of "Bakelite" or like material. The contact pins are formed as screws j, screwing into square blocks g sliding in cavities in the body a of the holder. The leads o pass through openings in ridges l, m moulded on the body a and are clamped in holes in the heads g by the screws j, which are pressed downwards by springs k surrounding, them.
Patent GB-198881-A (GB)
Title: Frosted glass, marble & general cleanser
IPC: C11D7/60
Filed: 1922-05-10
Abstract: A composition adapted for cleaning cloth, marble, tiles, frosted glass, &c. is prepared by boiling together 1 lb. of pearl ash, 1 lb. of black ash, and 2 gallons of water, and then adding a few drops of peppermint.
Patent GB-131818-A (GB)
IPC: G11B3/00
Abstract: 131,818. Eccles, J. R., (trading as Gramophone Components). Jan. 8, 1919. Tone-arm joints. - Tone-arms of gramophones and like machines are fitted at their free ends with sleeves having a limited independent rotary movement, the sleeve fitting over or within the sound-box neck. As shown in Fig. 2, the sleeve 1 is fitted upon or within the bent end of the tone-arm 3, and its rotary adjustment is limited by a slot 5 and screw-pin 6. The soundbox neck has a projection engaging a slot 4 in the sleeve 1, and the sleeve may be made to fit closely round the sound-box neck by providing a resilient tongue 11.
Patent GB-453641-A (GB)
Title: Improvements in injection pumps
IPC: F02D1/00
Filed: 1936-05-11
Abstract: 453,641. Speed governors. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. May 11, 1936, No. 13228. Convention date, May 11, 1935. [Class 57] A fuel-injection pump 14 has a supporting face parallel to the pump pistons by which it is secured to the crank case 10 of an engine. Air induction pipes 12, 12<1> are fitted with Venturis 17, 171 the throats of which are connected by pipes 18, 18<1> to a chamber 19 provided with a diaphragm &c. connected to the racks for controlling the output of the pump. The chamber 19 may be connected to one of the induction pipes only.