baber/WOPTO huggingface dataset:
Patent GB-1101904-A (GB)
Title: Indicating device
IPC: B60R16/023
Filed: 1966-04-19
Abstract: 1,101,904. Visible signalling apparatus. CATERPILLAR TRACTOR CO. 19 April, 1966 [4 June, 1965], No. 17052/66. Heading G4F. An electrically operated indicator comprises a housing 16 in which an indicator ball 10 is pivotally supported by pins 11. A permanent magnet 23 in ball 10 has a pole 62 of opposite polarity to that of a pole 61 of a permanent magnet 26 in housing 16. Magnet 26 may take the form of a permanently energized electromagnet. A soft iron core 24 and coil 28 form an electromagnet, when energized, of greater magnetomotive force than permanent magnet -26 and having a pole 63 of opposite polarity to that of pole 61. A stop (51), Fig. 2 (not shown), is provided to engage housing 16 to ensure that the force of repulsion between poles 63, 62 will cause the ball to rotate on energization of the electromagnet 24, 28. When coil 28 is de-energized magnet 26 will cause ball 10 to return to its original position. A transparent portion 49 of housing 16 may be marked to co-operate with markings on ball 10 or the alternatively exposed portions of the ball may be differentiated by different colourings. The indicator may be associated with a nipple (71), Fig. 6, (not shown) of an oil pressure system having a pressure sensitive switch (72). On increase of oil pressure a resilient contact bridge (76) bridges contact points (77), (78) and completes an electrical circuit causing battery (79) to energize coil 28 and thus magnetically urge indicator ball 10 to rotate.
Patent GB-782216-A (GB)
Title: A diagnostic preparation
IPC: A61K33/00
Filed: 1955-06-14
Abstract: A dry diagnostic preparation for the determination of serum bilirubin consists of an alkali metal sulphanilate, an alkali metal nitrite, and a water-soluble binder, for example lactose, dextrose, or dextrin.  In an example, 5 parts by weight of sodium sulphanilate are mixed with 1 part of sodium nitrite and a binder and formed into tablets.  The sodium salts may be replaced by potassium or lithium salts.  The serum to be tested is diluted with water and mixed with methyl alcohol and a solution of the test tablet in dilute hydrochloric acid.  The colour produced is compared with that given by a known concentration of bilirubin.
Patent GB-1030376-A (GB)
Title: Sulphamic acid derivatives
Inventor: BOWEN DAVID GREVILLE
Filed: 1964-04-24
Abstract: N-substituted sulphamates are produced by reacting a sulphamic acid salt with a primary or secondary amine at elevated temperature in an inert liquid reaction medium in the presence from the start of the reaction of a minor proportion of an acid. The preferred acids are sulphamic acid and C1-C6 carboxylic acids.  The salts produced may be converted to the corresponding acid by known methods.  Suitable amines are for example cyclohexylamine, isopropylamine, isobutylamine and isoamylamine. The amine may be used in the form of an addition salt with an acid weaker than sulphamic acid.  Suitable reaction media are hydrocarbon fractions, e.g. a petroleum hydrocarbon fraction boiling in the range 260-290 DEG  C.
Patent GB-273720-A (GB)
Title: Improvements relating to the regulation of power plants
IPC: G05D13/00
Filed: 1927-06-28
Abstract: 273,720. Oesterreichische Eisenbahn-Verkehrs-Anstalt. July 5, 1926, [Convention date]. Power-generating systems.-In a system wherein an internal-combustion engine 1 drives a compressor 2 which circulates steam, compressed air or other pressure medium and thus operates an engine 17 for driving a locomotive, a ship, a conveyer, or rolling-mills &c., and wherein accumulators 9, 22 are arranged in the high and lowpressure sides of the plant, fluctuations in the demand for power are made good by the pressure variations in the accumulators, and the pressures are maintained by controlling the output of the internal-combustion engine and also the delivery of the compressor by fluid-pressure automatic means or conjointly by hand. The accumulator 9 is connected by pipes 7, 8 with a receiver 5 in the high-pressure main 16, 4. The stop valve 11 may be automatically operated to cut out the accumulator in the case of a permanent overload to prevent an abnormal discharge therefrom. Superheaters 14, 15 heated by exhaust motor gases or separately heated are arranged in the branches 4, 8. The receptacles 5, 9 and similar receptacles 25, 22 in the low-pressure side of the plant may be united and heated by exhaust motor gases or otherwise. Steam is supplied to or is delivered from the accumulator 9 according as the pressure in the main 4, 16 rises or falls. Similarly a transfer takes place between the main 3 and accumulator 22. The pressure variations in the elements 9, 5 are transmitted to a pipe 23 and control first the speed of the motor 1 and then the delivery of the compressor in a known manner. In a modification the fuel supply to the motor is determined by hand, and a governor driven by the motor controls valves 11, 29 arranged in the high and low-pressure mains and brings the accumulators into action at high and low-speeds respectively. The valves may be hand controlled. The centrifugal governor may be adapted in cases of emergency to reduce the fuel supply. If, owing to a sudden variation in power of engines 17, the speed of the motor 1 is abnormally reduced, the governor increases the fuel supply, and the resultant excess compressor pressure is released by safety valves.
Patent GB-1017838-A (GB)
Title: Improved speed control for a rotary device
IPC: H02P29/00
Filed: 1964-04-27
Abstract: 1,017,838. Speed-control of disc brakes. AMPEX CORPORATION. April 27, 1964 [June 4, 1963], No. 17272/64. Heading F2E. [Also in Division G3] A disc 30, rotating with shaft 18, co-operates with a photo-sensing device 32 developing a square-wave pulse signal having a frequency indicative of the speed of the shaft. When a frequency standard 36 is adjusted for a lower operational speed, comparator 34 develops a D.C. error voltage which is passed to power amplifier 23. The energization of coil 22 is increased so that a rotating brake disc 12 is urged towards fixed magnetic ring 10, and, in combination with a prestressed diaphragm 24, exerts a greater frictional force against the ring through frictional braking material 14. The shaft 18 is thus retarded until the selected speed is reached and the comparator 34 provides zero control voltage, the system maintaining the selected speed.
Patent GB-1507495-A (GB)
Title: Television power supply and deflection arrangement
IPC: H03K4/62
Filed: 1975-04-25
Abstract: 1507495 Line deflection circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 April 1975 [29 April 1974] 17274/75 Heading H3T [Also in Division H2] In a TV line deflection circuit of the type in which the supply voltage B is switched (by Tr2) at line frequency and feeds an inductor L1 across which a retrace pulse is produced, the voltage at the supply side of inductor L1 is limited by an inverse diode D2 and the line deflection transistor device Tr1 is triggered by means of a transformer T2 the primary of which is connected in series with a capacitor C2 across the diode D2. As described, during the first part of each trace, D1 conducts so that the voltage across Ct provides a sawtooth current through deflection coils L1. Transistor Tr1 is turned on before the mid trace point so as to pass the deflection current iy after it has reversed. At the end of the trace, Tr1 is turned off giving a retrace pulse at A until the voltage across Cr becomes zero. Diode D 1 then becomes conductive to start a new trace. The deflection amplitude is stabilized by means of a pulse modulator Dr which varies the conduction period of the transistor Tr2 in the supply circuit. EHT supply is developed across C1. T2 could be formed as an auto transformer. D1 may be the collector/base diode of Tr1. In Fig. 3 (not shown) windings L1 ... L8 are formed on a common core T1. Windings L2, L6, L7 may alternatively form part of a separate transformer.
Patent GB-352198-A (GB)
IPC: B29D23/00
Filed: 1930-06-04
Abstract: 352,198. Rubber tubing. RADO, L., 10, Bismarckstrasse, Wannsee, Berlin. June 4,1930, No. 17312. Convention date, Nov. 7, 1929. [Class 99 (ii).] Rubber tubing 1 is protected by lining it with a plurality of layers of tin, aluminium, copper, &c., foil 2, having a thickness of 0À01-0À02 mm., which is preferably secured, with or without a fabric foundation, to the tubing by vulcanizing. The foil may be applied to the tubing in the form of lengths coiled together in coaxial tubular form, or else wound therein in strip form. The tubing is preferably corrugated, in which case the foil may be secured to the tubing by a helical spring, rings, &c. 3. The finished tubing may be coated with anticorrosives.
Patent GB-379664-A (GB)
Title: Lace boot
IPC: A43B23/02
Filed: 1932-06-18
Abstract: 379,664. Boots. MœCKLISCH, J., 11, Prellerstrasse, Blasewitz, Dresden, Germany. June 18, 1932, No. 17326. [Class 17 (ii).] The top edge a of a lace boot, particularly for sports wear, extends downwards at an. incline from the lacing to the heel counter c. A back loop d may be provided for the boot lace.
Patent GB-221602-A (GB)
Title: Improvements in or relating to fire protection systems for buildings and the like
IPC: A62C35/64
Filed: 1923-07-05
Abstract: 221,602. Vigilant Sprinklers, Ltd., and Hitchcock, B. C. R. July 5, 1923. Sprinklers, automatic.-In a dry-pipe valve sprinkler system an accelerating device is adapted to destroy or reduce the differential action of the control valve so that it opens promptly. Chambers F<1>, F<3> are respectively connected to the sprinlder pipe by a pipe F<4> and by a restricting or " bleed " device I and pipes F<6>, F<4>. Consequently when the air pressure is released by a sprinkler the pressure falls rapidlv in the chamber F<1> and slowly in the chamber F<3>. A valve G is lifted by the excels pressure in the chamber F<1> which acts on a diaphragm H, and so the chamber F<1> is put into communication with the neutral chamber of the differential control valve through a chamber F<2> and a pipe F<5>. The restricting device I comprises a rubber disc I<1>, a metal disc I<2> and a rubber diaphragm I<3> clamped together by a nut I<4> on a screwed spindle I<5> forming a valve resting on a seating I<8>. The diaphragm I<3> is clamped in position by the outlet portion I<6> and a ring I'. Air enters the chamber F<3> through a pin hole I<9> in the diaphragm.
Patent GB-356267-A (GB)
Title: Improvements in direct current dynamo electric machines
IPC: H02K3/20
Filed: 1930-06-06
Abstract: 356,267. Dynamo-electric machines. ROBERTS, K. W. D., 42, Auburn Road, Old Trafford, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London. June 6, 1930, No. 17534. [Class 35.] Coils; exciting; polepieces.-Each pole of a continuous current machine is provided with a compensating winding consisting of two coils, each coil surrounding half the pole face and having one side lying in a slot in the pole face and the other embracing the back of the pole horn, with or without the interposition of a wedge. Fig. 1 shows a pole-piece 1 provided with a slot in which lie the sides 8, 9 of two coils secured by a wedge 11, the other sides 7, 10 of the coils being secured by wedges 4 pressing against the backs of the pole horns 3. The wedges 4 also serve to secure the main winding 5 which is seated on a resilient cushion 6. The sides 8, 9 of the coils may occupy separate slots or may be secured by wedges closing the slot instead of or in addition to the wedge 11. Fig. 3 shows the connections of the compensating coils for adjacent poles 1, 1a.
Patent GB-146253-A (GB)
Title: Diaphragms for submarine signal transmitters
IPC: G10K13/00
Filed: 1920-06-28
Abstract: 146,253. Atlas-Werke Akt.-Ges. July 20, 1918, [Convention date]. Subaqueous audible signals.-In diaphragm transmitters it is usual for the diaphragm to be mounted at its rim, as shown in Fig. 1, and to be vibrated in an overtone mode with a node circle at A<1>, A<2>. According to the present invention, the diaphragm is curved back and inward at the node circle A<1>, A<2> and attached to the base G on a circle of smaller diameter than the d'iaphragm itself, so that the apparatus may occupy less room in an in-board tank.
Patent GB-312510-A (GB)
Title: Improvements in tea rolling machines
IPC: A23F3/12
Filed: 1928-06-18
Abstract: 312,510. Worthington, W. R. June 18, 1928. Addition to 312,473. Tea, rolling. - The machine according to the parent Specification is modified by providing a. flexible connection 17 operable by a lever 16 driven from the main shaft 9 to actuate the presser 3 normally resting upon the tea to apply pressure to the tea automatically and periodically. The flexible connection 17 after passing over a pair of guide pulleys 44, 45 and pulley 46, is connected at 36 to one end of a double-armed lever 37, which is fulcrummed at 38 to the frame 40 of the receptacle 2. The other end of the lever 37 bears through the medium of a fork 41 upon the centre of the presser 3. The arm 16 is loosely mounted upon the shaft 14, and is operated by the clutch 18, shaft 14 and toothed gearing of the machine, in the manner similar to the operation of the cam that actuates the push- .rod as described in the parent Specification. A detent 48 is also provided for maintaining the arm 16 in its lowermost position for a predetermined period.
Patent GB-204392-A (GB)
Title: Improvements in or relating to the manufacture of articles from clay, diatomaceous earth and similar mineral substances
IPC: C04B14/08
Filed: 1922-06-27
Abstract: 204,392. Moler Fireproof Brick &. Partition Co., Ltd., and Deane, B. P. F. June 27, 1922. Compound or composite slabs.-Articles are formed of different grades of diatomaceous earth which are placed together in a semi-plastic condition and pressed into intimate contact with one another, the article being afterwards dried and baked. A diatomaceous earth such as that known under the registered trade mark " Moler " may be employed in which different grades known as porous moler and solid moler are used, a metal reinforcement being inserted if desired.
Patent GB-145588-A (GB)
Title: Improved process and machine for effecting the automatic drawingin of warp threads into loom heddles
IPC: D03J1/14
Filed: 1920-06-29
Abstract: 145,588. Dubrulle (nÚe Vandenbroucque), B., and Mathon et Dubrulle Fils, E. April 8, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Healds and warpstop detectors, threading.-Leashes or healds 1, Fig. 1, strung on steel bars 2 descend between rigid supports 3, and are released one, at a time by camcontrolled blades so as to fall on to a fixed dog 13 and a movable dog 15 on parts 12, 14 fixed to an axle 10, and each released leash is then tensioned and moved into position to be threaded by a hooked needle 23 operated by a cam-controlled lever. Afterwards the threaded leash is transferred to tappets 41, Fig. 2, on a carriage B, which is moved under the control of patternmechanism to place the threaded leash in position over a particular pair of a number of pairs of heddle supports 54 to which it is subsequently transferred. Thus the threaded leashes are placed on the appropriate pairs of heddle supports and the filled supports are afterwards mounted in the usual wooden frames for use in the loom. The carriage B is pressed by a spring against a reciprocating carriage A. The parts 12, 14 are each provided with four dogs 13, 15, the axle 10 being given a quarter turn after each threading operation, whereby the leashes are moved in succession to a position to be threaded by the hooked needle 23, and are tensioned by the movements of the dogs 15 under spring action as permitted by a fixed cam 17, a warp thread being presented to the hooked needle by hand. The threaded leash is released from the dogs 13, 15 by the action of parts 60, 61, controlled by the advancing carriages A, B, and drops on to springs 59. It is afterwards engaged by the tappets 41 on the carriage B. Pattern cards on a cylinder operate spring-controlled needles 44<2>, whereby one of several spring- controlled plungers 46 is depressed into the path of a stop 36 on the carriage B, the return movement of which is thus stopped at the particular place to enable the threaded leash to be moved, by mechanism controlled by the movements of the carriages A, B, from the tappets 41 to a particular pair of heddle supports. The threaded warps are placed by a. rotating hook 32 under cam-controlled fingers 34, which are pressed against a. notched plate 30, and several of the warps are knotted together, the corresponding leashes supported by plates 56 being then allowed to drop by the rotation of these plates. The heddle supports 54 are engaged by holders 48 on adjustable plates 50 and are retained therein by springs. It is stated that the machine may be used for drawing-in threads through the eyed or mailed parts of automatic warp stop-motions.
Patent GB-1237397-A (GB)
Title: Flexible sheet material
Inventor: CLARKE DENNIS IVOR
IPC: D06N3/00
Filed: 1968-04-16
Abstract: 1,237,397. Cellular laminates. DUNLOP HOLDINGS Ltd. 15 April, 1969 [16 April, 1968], No. 17759/68. Heading B5N. [Also in Division B2]  Flexible sheet material comprises a compressed reticular or reticulated cellular plastics sheet adhered to a non-woven textile web having knitted or woven fabric incorporated in the web body. The web may comprise a layer of staple fibres or crimped continuous filaments needlepunched to each face of a knitted or woven fabric, or a single layer of staple fibres or crimped continuous filaments needlepunched partially through a knitted or woven fabric. Woven fabrics may be scrim, matt-woven or basketwoven. The cellular sheet may consist of natural or synthetic rubber, polyvinyl chloride, polyethylene, polypropylene, polystyrene, or, especially polyurethane, crimped or uncrimped fibres of polyester, polyamide, cotton, wool or rayon may be incorporated in the cellular sheet, either by distributing in a foamable mixture or by vibrating into the cells of the formed foam. The cellular sheet may be compressed under heat and pressure, optionally after impregnation with adhesive to assist retention in compressed form; although such a method is preferably not used. Compression of the sheet may be effected before, during or after bonding to the textile web, and the compressed cellular sheet may have a density of 0À3-1À05 gm./cm.<SP>3</SP>. The sheets may be compressed and bonded by temperature and pressure; pressure may be applied by plates or rollers. A temperature differential may exist between the surfaces during bonding. An adhesive may be additionally used for bonding; specified adhesives are natural rubber latex, polychloroprene latex, natural rubber-polymethylmethacrylate graft copolymer latex, ethylene-vinyl acetate copolymer, solvent-based neoprene, polyurethane, carboxylated styrene -butadiene copolymer latex, and styrene-butadiene copolymer latex mixed with phenol/aldehyde resin. Alternatively, the surfaces of the sheets may be rendered adhesive by solvent- or heat-treatment; the cellular sheet may be bonded in a tacky state. The sheets may also be needled together. Other specified methods of bonding are (a) by the application of binder to superimposed sheets, setting and curing (if the cellular sheet is precompressed and of density less than 0À85 gm./cm.<SP>3</SP>); the binder being optionally differentially distributed, and (b) by flame-bonding, using an interposed cellular plastics sheet. Binder may be applied to the adhered assembly, application being to the fibrous material only if the cellular sheet has a density greater than 0À85 gm./cm.<SP>3</SP>. Specified binders are polyvinyl chloride, polyurethane, ethylenevinyl acetate copolymer, butadiene-styrene and butadiene-acrylonitrile copolymers; they may be compounded with silicone oil. A finish coating of nylon, polyacrylate or polyurethane may be applied. The surface may be embossed.
Patent GB-490967-A (GB)
Title: Improvements in and connected with portable lifting jacks
IPC: B66F3/08
Filed: 1937-06-25
Abstract: 490,967. Lifting-jacks. STANTER, W. A., and HENDERSON, P. L. June 25, 1937, No. 17767. [Class 78 (iii)] The framing of a lifting-jack is supported normally on wheels f through the medium of springs in the boxes j. On taking up the strain of the load, the springs are compressed gradually until the frame b rests on the ground. The lifting-mechanism, comprising a screw 10, motor 16, chain-gear 18 and worm gearing 19 driving the nut 9, is all mounted to swivel about pivots x, which also form the pivots for the bail v for pushing the appliance about. A locking-pin 4, which fixes all the parts against swivelling during transit, is removed before hoisting commences.
Patent GB-1371994-A (GB)
Title: Sail rigging
IPC: B63H9/10
Filed: 1972-04-18
Abstract: 1371994 Roller reefing B F FRANCIS 18 April 1973 [18 April 1972] 17777/72 Heading B7V  Gear for roller-reefing a sail, e.g. a foresail 4 or mainsail 3 about its luff comprises a roller 6 or 6 journelled in bearings at its foot and peak ends and having a passage at the peak end extending through the peak bearing 27. Apertures open from the passage above and below the peak bearing, a sail halliard 31 passing over a guide 30 into the-passage through the upper aperture and emerging through the lower aperture 25A. A swivel 33 is provided in the run of the halliard which, when fully raised, lies between its point of attachment to the peak of the sail and the guide 30 so that the length of the halliard 31 above the swivel will not be twisted when the sail is rolled.  As described, the roller 6 or 5 is rotated by a worm gear drive unit 11 or 12 at its foot end. A clew outhaul arrangement (Fig. 7) is described for use when roller reefing a boomed sail 3. The wire outhaul 8 passes from the clew of the sail, around a sheave 9 at the after end 10 of the boom 2 and around a grooved drum 66 in a winch 7 near theforward end. A spindle 68 having a socket 70A engageable by a hand-crank may be clutched to the drum 66 by a cone-clutch arrangement which is actuated by a handwheel 70. In operation, to unfurl the main-sail 3, the clutch is engaged by hand-wheel 70 and the drum 66 turned by the hand-crank to haul out the clew of the sail. To furl the sail, the hand-crank is turned to disengage a pawl from a ratchet on the drum and then removed; hand-wheel 70 is now turned to disengage the clutch and roller 5 is rotated by the drive unit 12 with the drum 66 slipping against the friction applied by a spring 73 inside the winch 7.  The sail 3 or 4 is attached to the roller 5 or 6 by C-shaped clips which slidably embrace the roller along its central tubular part 20 but are prevented from turning relative to the roller by a rib 20A which engages the gaps in the clips.
Patent GB-1254343-A (GB)
Title: Interchangeable lens camera
IPC: G03B19/12
Filed: 1969-04-08
Abstract: 1,254,343. Photographic cameras. NIPPON KOGAKU K.K. April 8, 1969 [April 9, 1968], No. 17820/69. Heading G2A. A single lens reflex camera 1 having an interchangeable lens L and a focal plane shutter has a light shielding member 11 pivotably mounted between the lens and the shutter and urged by a resilient member 13 to a position 11<SP>1</SP> where it prevents external light from impinging upon the shutter, an interlocking member 15 being engaged by a cam surface 10a associated with the lens L so as to pivot the light shielding member in a direction C out of the taking light path upon mounting the lens L on the camera. The interlocking member 15 may pivot about a shaft 17 or it may be slidably mounted. The light shielding member 11 may overlap with a reflex minor supporting member 4, stops 5, 14 limiting the movement of the mirror support and light shielding members respectively.