baber/WOPTO huggingface dataset:
Patent GB-293758-A (GB)
Title: Improvements in apparatus for feeding liquid fuel to internal combustion engines
IPC: F02B1/00
Filed: 1928-07-09
Abstract: 293,758. Rebillet, M. J. A. July 11, 1927, [Convention date]. Valves actuated by pilot or relay valves. - In apparatus for feeding liquid fuel to a carburettor nozzle by an engine-driven centrifugal pump, as described in Specification 277,304, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], the pump outlet is tapped by a pipe, Fig. 7 (not shown), which conveys the pressure fluid to a servomotor for actuating the cock 22 through linkage. The fluid is admitted by a pipe l to both sides of a piston p, Fig. 8, and a slide t is actuated by a membrane r, subject to pressure variations of air in chamber s, to control ports v, v<1> which determine the discharge through an outlet wand serve to bring the piston p always to the same position relative to the slide t.
Patent GB-1294782-A (GB)
Title: Neutron generator
IPC: G21G4/02
Filed: 1971-04-19
Abstract: 1294782 Automatic control of neutron generators PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [23 Jan 1970] 20069/71 Heading G3R [Also in Division H1] The ion-beam current and neutron-yield of a neutron generator N (see Division H1) are maintained constant by an automatic control circuit. The ion current 23 from the source 2 to the target 12 is measured by a meter in a control device 25 connected to a vaporizer 17 for vapour depositing a layer on the target 12. The neutron yeild 24 is measured by a monitor 26 the output of which rapidly adjusts a pressure control device 3 which emits or absorbs hydrogen. The output from the device 25 controls the vaporizer 17 more slowly so that the ion current remains constant in the long term and is subject to only short-term fluctuations to maintain the neutron yeild constant while the thickness of the layer on the target 12 is being adjusted.
Patent GB-849885-A (GB)
Title: Organosiloxane gels
Filed: 1959-06-11
Abstract: A soft, non-friable, non-flowing but selfhealing gel may be made by reacting, in a liquid phase, (1) an organosiloxane having a viscosity of from 100 to 10,000 cs. at 25 DEG C. and being a p  copolymer consisting essentially of R.ViSiO, R2SiO and CH3R2SiO0.5 units wherein each R is a methyl or phenyl radical and Vi is a vinyl radical, at least 0.174 molar per cent. of the units in the copolymer being R.ViSiO units, with (2) a liquid siloxane of the average general formula H.R.CH3.SiO(R2SiO)nSiCH3RH, wherein n has an average value of from 0 to 800 and each R is a methyl or phenyl radical, the viscosity of the siloxane being not more than 10,000 cs. at 25 DEG C. and not more than 25 molar per cent. of the total R radicals present in (1) and (2) being phenyl, in the presence of (3) a platinum catalyst in amount sufficient to furnish at least 0.1 part per million of Pt calculated on the sum of the weights of (1) and (2), the proportions of (1) and (2) being such that prior to the reaction there is an average of from 1.4 to 1.8 of the Si-bonded H atoms in (2) per molecule of (1) and there being at least one RViSiO unit in (1) for every Si-bonded H atom in (2), the molecular weight of (1) being calculated by the equation: log. visc. = 1,00 + 0,0123M,0,5 where M is the molecular weight and "visc." is the viscosity in cs. at 25 DEG C. of (1).  Preferably siloxanes (1) and (2) should be free from Si-bonded OH groups.  Catalysts specified are platinum per se or as deposited on silica gel or charcoal; platinic chloride and sulphate; potassium and sodium platinic chlorides; and chloro-platinic acid, preferably as the hexahydrate.  The catalyst may be dissolved in a solvent, e.g. dimethyl carbitol or phthalate. Reaction between (1) and (2) can take place at room or preferably at elevated (e.g. 125 DEG  to 165 DEG  C.) temperature.  For shipping and storage purposes, the chloroplatinic acid is mixed with copolymer (1) and this mixture is then diluted with the required amount of (2) just prior to using.  Examples are given. Uses : for potting, filling or encapsulating electrical apparatus.
Patent GB-1254632-A (GB)
Title: Method and apparatus for producing cathode ray tube envelopes
IPC: C03B23/09
Filed: 1969-04-21
Abstract: 1,254,632. Moulding glass. CORNING GLASS WORKS. 21 April, 1969 [29 April, 1968; 1 May, 1968], No. 20189/69. Heading C1M. In the production of hollow glass articles having accurately conforming flat sealing surfaces, the article is removed from a mould by a take-out device comprising a pre-heated forming member with a flat surface, pressure being simultaneously or subsequently applied to the article to press all points on the surface of a sealing edge of the article firmly in contact with the flat surface of the forming member while the article is still in a plastic condition. The apparatus disclosed consists of a take-out mechanism in which a vacuum head 10 has an inner member 10b on an upper portion 10d of which slides an annular outer member 10a which has a flat surface for forming the upper edge of the moulded article 31 in the mould 32. A piston ring 46 set in portion 10d ensures vacuum tightness. The inner member 10b is secured by a support plate 41 to a clamp 11 on a hollow operating rod 12 connected to a vacuum source at its upper end (24) and movable up and down by a piston-rod (17) to position the inner member 10b within the article 31. The inner member 10b has a lower portion 10c spaced from the upper portion 10d and provided with a web-like array of ribs 36 with enlarged parts (34) with passages 35 therethrough in which posts 37 are positioned, the lower ends of which extend out of the portion 10c and are bevelled as necessary so as to be spaced slightly from the moulded article 31. The lower portion 10c is connected to vacuum through hollow rod 12 and conduits 26, 27 which extend through upper portion 10d to the space between the two portions. Operating rod 12 and vacuum head 10 are moved into position by an arm (13) above mould 32 and the head lowered to the position shown, when an annular resilient pad 60, for example of asbestos fibre, on annular member 10a engages the rim of the article 31. Vacuum is then applied and the article is drawn up until the posts 37 are engaged by the article 31. The rod 12 is then actuated to lift the whole head 10 and article 31 secured thereto and arm 13 then moves rod 12, head 10 and article 31 over a table on to which the article 31 can be deposited. In place of the described embodiment, mechanical pressure can be directly applied to press the sealing edge firmly in contact with the surface of the forming member. Additional heat may be applied after removal from the mould if required.
Patent GB-834572-A (GB)
Title: Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing apparatus
IPC: H04R17/08
Filed: 1956-07-02
Abstract: 834,572. Binaural systems. TELEFUNKEN G.m.b.H. July 2, 1956 [July 2, 1955], No. 20347/56. Class 40 (4). A pick-up or recorder for a binaural record comprises a single stylus 6 which is coupled to one transducer 1 for hill-and-dale movement and to another transducer 2 for lateral movement, the mechanical connection between the stylus and the transducers preventing unwanted coupling between the transducers and at least part of the mechanical connection being made of a plastic such as polyvinylchloride. In Fig. 1 the transducers are torsional piezo-electric crystals and a plastic member 3 transmits vertical movement while being flexible to lateral movement. The member 3 passes through a leaf-spring 4 which transmits lateral movement. The member 3 may be shortened to make the transducer assembly more compact. The connecting members 7 and 8, Fig. 2, may be moulded in one with a rigid body 9. The crystals 1, 2 are embraced by extensions 11, 12 of the members 7, 8, stops 13, 14 abutting against the casing to confine the crystals to torsional movements. Specifications 394,325 and 688,804 are referred to.
Patent GB-203724-A (GB)
Abstract: 203,724. Baron, H., (Aldendorff, F.). March 13, 1922. Electric and magnetic.-The rotor of an electric selector is arrested in a desired position by braking action exerted when adhesion is produced between two contacting surfaces, one of which is carried by or movable with the rotor of the selector and slides over the other. The contacting surfaces may be constituted by the armature and pole-piece of an electromagnet, but in the preferred form one is composed of a conducting material and the other of a semi-conductor such as agate or Solenhofen slate, these pairs having the property that when an electric current is passed through them their contacting surfaces strongly adhere together. In the construction shown in Fig. 1, the selector rotor shaft 9 is encased in a sleeve 7 of semi-conducting material which is journalled in and intimately contacts with a bearing 19 of conducting metal. When a current is passed through the rotor shaft 9, sleeve 7, and bearing 19, the sleeve 7 and bearing 19 bind together and stop the rotation. In a modification, a metallic split-spring sleeve 300, Figs. 5 and 6, is inserted between the semi-conductor sleeve 7<1> and the bearing 19<1>, and is held in a normal position by an adjustable spring 309. When a current is passed through the sleeves 7<1>, 300 and bearing 19<1>, the sleeves 7<1>, 300 bind together, the spring sleeve 300 is taken round with the rotor, and a pin 320 mounted upon it drives a pawl 302 into engagement with a ratchet disc 301 carried by the rotor, which is thereby arrested. In another construction, the rotor shaft 414, Fig. 7, is journalled in the framework 403 and carries on its lower end a ball socket 413 which rests upon a hemisphere 411 fixed upon a metal disc 410 in contact with a stationary semi-conductor disc 408. When a current is passed through the discs 408, 410 they adhere together and arrest the rotor.
Patent GB-335934-A (GB)
Title: Improvements in electric signalling systems and in apparatus used therein
IPC: H04M1/272
Filed: 1929-07-03
Abstract: 335,934. Standard Telephones & Cables, Ltd., Chapman, S., and Lawrence, W. July 3, 1929. Selective signalling apparatus.-In a system comprising a number of substations, the operation of a switch-contact is signalled to a control station by means of a. step-by-step switch which over wipers W1 and its associated bank generates impulses and which over wipers W2, W3 and their banks of controls the circuits of relays X, Y at periods dependent on the switch-contact operated to render certain impulses ineffective so that a code is transmitted as indicated in Fig. 2. It will be seen that each make or break of the circuit is reckoned as an impulse, and the reverse operation of a switch-contact is signalled by the same code with the impulses reversed as regards make and break. Assuming switch SW1 moves to its upper position, relays C, S1 energize in series, lock and complete the circuit to the control station. Relays A, B at each station ensure that only one station can be connected to the control station at the same time. Pendulum relay, PM operates and sends impulses to magnet RM to step the rotary switch. In position 8, relay D energizes over wiper W1 and sends a make impulse over wire L1 which is repeated at each even position until the first position marked by relay S1 is reached, when relay X energizes over wiper W2, locks and closes a circuit for holding relay D in the odd positions. Four steps later, relay X is short-circuited over wiper W3, and a second train of impulses is sent until the next marked position is reached, when relay Y energizes, locks and opens the circuit for relay D in the even positions. Four steps later, relay Y is short-circuited, and a third train of impulses is sent which is concluded by the re-operation of relay X, and relay D is maintained energized over wiper W1 after the short-circuiting of relay X until position 44 is reached, when it is disconnected to give a release signal at the control station. In the penultimate position, relay P1 energizes and locks, and in the last position, relay C is short-circuited and falls back, disconnecting relay S1 and an impulse is sent to magnet RM to step the switch to normal. Assuming now that switch SW1 returns to its lower position, relays C, S1 energize as before and relay G energizes in addition, with the result that relay D energizes at the first step of the switch and the impulses throughout are reversed. In the penultimate position, relay P1 is released by short-circuiting.
Patent GB-148471-A (GB)
Title: Means and method for using the lighting or other dynamo of a vehicle as a speed indicator
IPC: H02K23/66
Filed: 1920-07-10
Abstract: 148,471. Gauthier & Co., R. April 26, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Electric speed indicators.-The dynamo of the lighting or other accessory system of a motorcar, tramway, railway or other vehicle is utilized as a means of obtaining an indication of the speed of the vehicle, the ordinary regulating-device normally maintaining the voltage constant being cut out of the circuit and a volt-meter put in when it is desired to indicate the speed. The volt-meter may have a number of different speed calibrations corresponding with the different gears by which the dynamo may be driven, and in addition may indicate voltages, as a check on the working of the system. The dynamo 1 is driven by chain or toothed gearing from the primary or secondary shaft of the vehicle, and the terminals 2, 3 are connected to distributing-leads 4, 5. Regulation may be obtained in the ordinary way by a trembler 14, a resistance 19 being included permanently in the circuit to prevent damage to the windings. Where different regulating-means are employed, a resistance may be temporarily included automatically while the speed observation is being made. A two-way switch 6 placed within reach of the driver is actuated to cut-out the regulator, and include a volt-meter 11, which is shown as having four scales corresponding with four rates of drive.
Patent GB-458042-A (GB)
Title: Improvements in or relating to the manufacture of unstable glasses
IPC: C03C14/00
Filed: 1935-07-18
Abstract: 458,042. Glass manufacture. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and PARTRIDGE, J. H., c/o General Electric Co., Ltd., Wembley, Middlesex. July 18, 1935, No. 20480. [Class 56] A method of making an article from an unstable glass, that is, a glass which is liable to alteration during the shaping process, consists in flashing the unstable glass with a stable glass. The method may be used for making articles of a cadmium glass prepared from a batch composed of 65 Ibs. of sand, 17¢ lbs. of sodium carbonate, 15 1bs. of potassium carbonate, 13 1bs. of zinc oxide, 7¢ lbs. of calcium phosphate, 16 ozs. of borax, 1¢ ozs. of selenium, and 3 ozs. of cadmium oxide. A suitable batch for the flashing glass consists of 139 1bs. of sand,. 54 1bs. of sodium carbonate, 14 1bs. of hydrated lime, 11“ lbs. of felspar, 12 lbs. of sodium nitrate, and 8 lbs of magnesite.
Patent GB-597108-A (GB)
Title: Improvements in electrical control and/or signal systems
IPC: H02J13/00
Filed: 1945-08-09
Abstract: 597,108. Signalling over power circuits. CLULEY, G., SMITH, R. M. A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 9, 1945, No. 20496. [Class 40 (iv)] i j In electric control or signal systems in which the signals consist of medium frequency current superimposed on the commercial supply frequency current in power mains and the signal generator circuit includes a blocking capacitance and a tuning reactance and a switch, at least part of the tuning reactance is included in the circuit between the power circuit and the said switch to limit any fault current. The switch need not therefore be of high rupturing capacity and is thus less costly. In the example shown, a bus-bar B is connected to a feeder F by a high capacity switch FS. The signal circuit comprises a generator G, a condenser C, an isolating switch IS of low capacity and a tuning reactor R. The latter then prevents full fault current reaching switch IS.
Patent GB-493387-A (GB)
Title: Improvements in or relating to variable speed power transmission mechanism
IPC: F16H33/16
Filed: 1937-07-27
Abstract: 493,387. Variable - speed epicyclic gearing. FALCO, M. DE. July 27, 1937. No. 20775. Convention date, Aug. 5, 1936. [Class 80 (ii)] Sun-wheels r<1>, r<2>, fast respectivsly on driving and driven shafts A, C, are connected by stepped planets r<3>, r<4>, supported in a loose carrier S, which is prevented from reverse rotation by a one-way detent U, so as to provide a positive reduced speed, which persists until, by temporarily retarding the driving shaft A, as by closing the throttle of a driving engine, the planet - carrier S is caused to rotate forwardly, thus causing masses P<1>, P<2>, carried by the planet-spindles B, to move to an unbalanced position relatively to the spindles, whereupon when the engine throttle is reopened, the gearing will automatically assume a direct solid-drive. When the load is sufficient to overcome the centrifugal force of the masses, the gearing will automatically revert to the fixed-ratio reduced drive and restore the masses P<1>, p<2> to balance about their spindles B. Each planet-spindle B carries one two-part mass P<1> fixed thereto, and other equal mass P<2> loose on an eccentric Q, fixed to the spindle at 180‹ to the mass P<1>. In the positive reduceddrive position, with the spindle-axes stationary, the masses assume a balanced symmetrical position, Figs. 1 and 4, whereas, when the carrier rotates in direct-drive, the mass P<2> turns to the same side of the spindle as the mass P', Fig. 5, to an extent limited by a stop a, thus unbalancing the spindle and applying a torque thereto. Several such gear trains may be arranged in series. The Specification as open to inspection under Sect. 91 describes also a modification in which the planet-spindles carry mercury capsules, provided with a single internal radial partition, and states also that, as applied to a motorvehicle, the throttle of the driving engine may be automatically closed at a predetermined speed for change to direct-drive. This subjectmatter does not appear in the Specification as accepted.
Patent GB-183853-A (GB)
Title: Improvements in internal-combustion air-compressor units
IPC: F02B71/04
Filed: 1922-07-29
Abstract: 183,853. Babin, J. July 30, 1921, [Convention date]. Check tilting - plate valves; check loose-ball valves.-In an internalcombustion engine having a free piston acting as an air - compressor, the inlet valves at the top of the pump cylinder comprise a ring of thin flap valves 49, Fig. 5, oscillating about their r lower ends and communicat - ing with the inlet by apertures 55. The outlet valves consist of a number of balls 61 of metal, hard stone, &c.
Patent GB-325186-A (GB)
Title: Strop with cross fluting
IPC: B24D15/08
Filed: 1929-07-08
Abstract: 325,186. Sch÷nfeld, F. M. July 8, 1929. Strops are made with flutes b<1>, b<2>, arranged partly at regular and partly at irregular distances, from each other, dividing the surface into sections a<1> which are approximately square or rectangular in shape.
Patent GB-254548-A (GB)
Title: Improvements relating to presses for neckties, gloves and the like
IPC: A47G25/72
Filed: 1925-08-20
Abstract: 254,548. Owen & Sons, Ltd., H., and Owen, G. Aug. 20, 1925. Presses.-A press for neckties, gloves, &c. comprises two boards a to the upper of which is centrally pivoted at c a bowed spring strip b, notched at its ends to engage two headed pins d carried by the lower board and situated on opposite sides thereof near different ends. Specification 186,767 is referred to.
Patent GB-1089829-A (GB)
Title: Fluid control valves
IPC: F16K3/02
Filed: 1965-05-18
Abstract: 1,089,829. Valves. ACF INDUSTRIES Inc. May 18, 1965 [May 20, 1964], No. 20931/65. Heading F2V. A valve with a sliding or rotary spherical closure member has a seat assembly containing an annular groove 88 for a resilient sealing ring 98 which in its uncompressed state has a greater axial length than the length of the groove and a lesser radial width than the radial width of the groove, the ring having frusto-conical surfaces to engage corresponding surfaces in the groove and an annular surface 87 in sealing engagement with the closure member. In the illustrated embodiment, a pair of seat assemblies are provided with 0-rings 80 and engage opposite faces of a sliding plate closure member 22 actuated by a hand wheel and screwed spindle 24 provided with a thrust bearing and seals. The difference in area between the upstream and downstream faces of each seat assembly causes the sealing surfaces to be actuated by the pressure of the controlled fluid into engagement with the faces of the closure member. A bleed fitting at the lower part of the valve housing enables tests for leakage to be carried out while the valve is in service. When a rotary spherical closure member is employed the seat assemblies are biased into engagement with it by helical springs and retainer rings, such as those shown at 90, are secured to the assemblies by bolts.
Patent GB-1497573-A (GB)
Title: Method for producing an electrophotographic recording material
IPC: G03G5/082
Filed: 1975-05-16
Abstract: 1497573 Vapour depositing selenium and arsenic LICENTIA PATENT VERWALTUNGS GmbH 16 May 1975 [24 May 1974] 20948/75 Heading C7F [Also in Division G2]  A photo-conducting layer containing Se and As is formed on an electrically conducting carrier by simultaneous evaporation from two separate sources, one source containing Se, a Se alloy or Se compound free of As and the other source containing at least one Se-As compound e.g. As 2 Se 3 , AsSe4, As 2  Se 2 , As 2  Se 5 . The layer may also be doped with a halogen by including a halogen in one or both of the evaporation sources. A shutter is preferably located between the sources and carrier e.g. Al , and the shutter is opened only when the evaporation temperature is reached. In an alternative embodiment an As concentration gradient is formed in the layer by simultaneous evaporation from both sources during only part of the process.