baber/WOPTO huggingface dataset:
Patent GB-684304-A (GB)
Title: Improvements in or relating to control systems for electric-motor driven compressors
IPC: F04B49/24
Filed: 1951-07-06
Abstract: 684,304. Automatic pressure control systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 6, 1951 [Aug. 19, 1950], No. 16061/51. Class 38 (iv). In an automatic pressure control system for a fluid reservoir supplied by a compressor driven by an electric motor, fluid-pressure operated unloader valve means for the compressor are operated from the reservoir when an electromagnetic valve is de-energized, but when the latter is energized upon switching on the motor the compressor unloader means is slowly vented to allow sufficient time for the motor to start before the compressor becomes loaded. In Fig. 1 a split-phase A.C. motor 14 drives an air compressor 10 supplying a main reservoir 11, e.g. on an electric locomotive, and, to prevent the compressor starting against a pressure head after interruption of the supply to the motor, pneumatic means 41 open the inlet valves, Fig. 4 (not shown), of the compressor under certain conditions. During starting, a centrifugal switch 28, operated when the motor reaches a predetermined speed, de-energizes a relay 23 to cut out a starting winding 26 and when the air in main reservoir 11 reaches a predetermined pressure, a pressure-operated switch 16 opens to de-energize a relay 18 and thereby stop motor 14 by disconnecting A.C. supply 32, 33. At the same time an electromagnetically-operated valve 17 is de-energized to connect reservoir 11 with valve-opening gear 41 and an auxiliary reservoir 24 so that the compressor inlet valves are opened. When motor 14 re-starts upon fall in main reservoir. pressure, valve 17 is re-energized but the compressor inlet valves remain open until auxiliary reservoir pressure falls by leakage through orifice 59. In the case of momentary interruption of the supply 32, 33 de-energization of a voltage relay 19 also causes de-energization of valve 17, delay means 51 preventing re-closure of the contacts of relay 19 until valve-opening gear 41 has time to operate. In modifications: (a) The voltage relay is omitted and valve 17 is energized through an additional contact of centrifugal switch 28 which opens if the speed of motor 14 falls. (b) The time delay is omitted from relay 19 and a switch responsive to pressure in auxiliary reservoir 24 prevents re-starting of the motor unless the pressure in the auxiliary reservoir is sufficient to open the compressor inlet valves. In this case initial starting of the motor is by push-button.
Patent GB-715564-A (GB)
Title: Improvements in or relating to hollow fluid-containing article comprising brominatedrubbery interpolymer
IPC: B60C1/00
Filed: 1952-06-26
Abstract: A hollow fluid retaining flexible article comprises a vulcanised brominated rubbery interpolymer of a major propertion of an isoolefin containing from 4 to 8 carbon atoms and a minor proportion of a polyolefin containing from 4 to 18 carbon atoms. Specified isoolefins are isobutylene, 3 - methyl-butene - 1, 4 - methyl pentene -1, 2-ethyl-butene - 1 and 4 - ethylpentene - 1, while the polyolefin may be butadiene -1:3, isoprene, 2-4 dimethyl butadiene 1:3, piperylene, 2 - methyl-hexadiene -1:5, dimethallyl, cyclopentadiene, 1-vinyl cyclobutene-2, dicyclo-pentadiene, dipentene, diterpene, terpinenes, terpinolenes, sylvestrene, 2- methylhexadiene- 1:3:5 myrcene fulvene, cycloheptatriene, 6:6-vinyl methyl fulvene and 6:6-diisoproperyl fulvene and many others.  A third component such as styrene, chlorostyrenes, acrylyl or methacrylyl chloride may be present.  It is preferred that the amount of combined bromine is from 20-80 per cent. of that required for complete bromination.  The bromination may be carried out by (1) passing gaseous bromine over finely-divided solid interpolymer, (2) adding a solid brominating agent, e.g. N-bromosuccinimide to the interpolymer on a mixing mill or (3) treating the interpolymer in solution or suspension with the brominating agent in solution or dispersion.  Inner tubes, inner liners and bags may be made by vulcanising the interpolymer when compounded with such materials as carbon black, zinc oxide, sulphur, mercaptobenzothiazole, di-ortho-tolyl guanidine, heptylated diphenyl amine, paraffin oil, stearic acid, pine tar, castor oil 2, 21 benzothiazyl disulphide and trimethyl-dihydroquinoline.  Crude rubber may also be present.ALSO:A mixture of natural rubber and brominated rubbery interpolymer of a major proportion of an isoolefin containing from 4 to 8 carbon atoms and a minor proportion of a polyolefin containing from 4 to 18 carbon atoms, is vulcanized after mixing with the usual vulcanizing ingredients and used for the production of inner liners and inner tubes for pneumatic tyres.  For the inner liner the vulcanizing ingredients are heptylated diphenyl amine, carbon black, zinc oxide, sulphur, mercapto benzothiazole and di-ortho-tolyl guanidine, while for the inner tube they contain also paraffin oil, pitch tar, castor oil and cottonseed fatty acid.
Patent GB-770973-A (GB)
Title: Improvements relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1955-06-06
Abstract: 770,973. Refrigerating. BIKKERS, W. A. June 6, 1955, No. 16094/55. Class 29 In a continuous cycle absorption refrigeration system the bubble pump 2 and the strong solution tube 15 of the liquid heat exchanger, the boiler 1 and the weak solution tube 7 of the liquid heat exchanger are each made of a single length of seamless tubing, the former extending through the latter. The condenser and rectifier may also be formed of the same tube as the boiler.
Patent GB-553110-A (GB)
Title: Improvements in or relating to flexible hose for conveying fluid at high pressures
IPC: F16L11/11
Filed: 1941-12-15
Abstract: 553,110. Hose pipes. AUTOMOTIVE PRODUCTS CO., Ltd., and CLENCH, E. C. S. Dec. 15, 1941. No. 16180. [Class 99 (ii)] A flexible hose for conveying fluids at high pressures, comprising a rubber or like core 11 surrounded by layers 12, 13, 14 of textile threads or metal wires, either braided or wound helically as shown is provided with an intermediate layer 10 of closely braided textile threads of sufficient fineness to prevent the rubber &c. of the core from being forced through the interstices during the curing of the hose.
Patent GB-422414-A (GB)
Title: Coupling carriage for monocable aerial transporters
IPC: B65G17/20
Filed: 1933-06-06
Abstract: 422,414. Rope grips. DACHKEVITCH, V., 13, Rue Francois Moutons, and BARATOFF, P., 2, Rue Claude Lorrain, both in Paris. June 6, 1933, No. 16203. Convention date, June 4, 1932. [Class 78 (ii)] In a monocable coupling carriage lateral bosses C, D forming bearing surfaces for horizontal deviating pulleys c, d, are provided on either side of the cable gripping jaws 10, 13, and the support 2 for the load carrier is arranged to pass between the jaws and the boss C. The fixed jaw 13 is integral with a casing 7 on which are formed the boss C and a boss A for engaging a vertical pulley a. The support 2 is pivoted to a member 4 which is slidably mounted in the casing 7 and connected by a pivoted link 5 to another slidable member 8. This latter member acts on extensions of the movable jaw 10. Automatic disengagement of the carriage from the cable is caused by a fixed rail 17 which depresses the casing 7, and a fixed rail 16 which supports the roller 15 on the support 2.
Patent GB-1506182-A (GB)
IPC: B29C65/00
Filed: 1975-04-18
Abstract: 1506182 Waveguide tube CABLES DE LYON 18 April 1975 [25 April 1974] 16210/75 Heading F2P [Also in Divisions B5 and H1] A waveguide, e.g. a circular waveguide for TE 01  mode propagation, comprises a hollow conductor covered by dielectric or conductive reinforcing material bound by a resinous compound which can be cured at ambient temperatures. In the continuous process shown, a fixed mandrel 1 is covered with a spirally-wound wire 2, then successively with a glass-fibre tape 3, a copper-gauze tape 5 and a further glass-fibre tape 6, all these layers being moved over the mandrel in the direction a as winding proceeds. The tapes are impregnated in an apparatus 4 with a phenolic resin mixed with an isocyanate and passed between wringing rollers (not shown) to ensure that the dosage of binding material is such that the tapes remain porous. The binding material is cured in a reaction chamber 7 by an amino catalyst entrained in carbon dioxide. The curing takes place at room temperature in a matter of seconds. The waveguide next enters a degassing chamber 8 where excess amine is removed by compressed air. A further layer consisting of neutral, anhydrous, granular material, e.g. sand or glass, bound with a mixture of phenolic resin and isocyanate is applied by an extrusion machine 9 and the layer is cured by a gas-entrained amine in a further reaction chamber 12. After further degassing in chamber 13, the waveguide is provided with a sheath of steel formed by overlapping strips 14, and finally, in extrusion machine 15, with an outer waterproof coating of PVC.
Patent GB-317565-A (GB)
Title: Improvements in and relating to gramophone cabinets and the like
IPC: E05C17/16
Filed: 1928-06-05
Abstract: 317,565. Bilantz, D. S., and Watts, P. T. June 5, 1928. Stays.-The hinged lid of a gramophone cabinet and the like is held in the open position by a pair of levers 8, 9, with a spring 15 to maintain the levers in gripping engagement with a pin 16, the levers being arranged so that they remain -substantially parallel or equidistant throughout their sliding movement relatively to the pin. 'The inner edges of the levers are provided with one or more recesses to engage the pin at the open and other positions of the lid. The opening movement of the lid is limited by shoulders 22 on the levers engaging projection 23 on the plate 17 carrying the pin 16.
Patent GB-626574-A (GB)
Title: Improvements relating to reciprocatory pumps for supplying liquid fuel to internal combustion engines
IPC: F02M37/04
Filed: 1947-06-20
Abstract: 626,574. Pistons. C. A. V., Ltd., and NICOLLS, W. E. W. June 20, 1947; No. 16319. [Class 122(i)] [Also in Group XXVIII] A hollow spring-loaded piston 4 for a reciprocating pump which is actuated by oil trapped in the interior through open actuation of a plunger 18, has an annular groove 16 communicating with the interior through a port or ports 17 so that the entrapped oil will serve to lubricate the piston and also provide a liquid seal therefor.
Patent GB-1008969-A (GB)
Title: Ferroelectric control circuit
IPC: H05B44/00
Filed: 1963-04-25
Abstract: 1,008,969. Circuits employing ferroelectric capacitors. RADIO CORPORATION OF AMERICA. April 25, 1963 [May 17, 1962], No. 16406/63. Heading H3B. An electroluminescent element 40, Fig. 2, is isolated from an A.C. source 46 when two series ferroelectric capacitors 42, 44 are saturated in opposite respects, and is energized when the polarization of capacitor 44 is reversed by coincidently applying positive pulses from X and Y pulse sources 60, 50 over a group of ferroelectric capacitors 48, 50, 52. The initial polarization directions of the various capacitors is indicated by the arrows 68-76 in Fig. 3A. When capacitors 48 and 50 are both positively pulsed, the polarization of capacitor 50 is held in the direction of arrow 70, and the polarizations of capacitors 48, 52 and 44 are reversed, Fig. 3D, thereby completing the energizing circuit of element 40. If only one capacitor 48 or 50 is pulsed, as for example by a positive pulse in either a row X or column Y circuit of a matrix, the polarization of both these capacitors is reversed or neither is reversed depending on whether an X or a Y pulse is applied respectively. In either case a single pulse is unable to switch the series capacitors 44 and 52. Energization of element 40 is terminated by applying, from a reset pulse source, a negative pulse at terminal 64 which as shown in Fig. 3E is able to reverse the polarizations of capacitors 44, 52 and 48. A television display panel is described, Fig. 5 (not shown), comprising a matrix of electroluminescent elements and associated ferroelectric capacitors which are controlled by pulses selectively applied to row and column circuits. It is stated that all the' capacitors for a single element may be provided by spaced gold electrodes which are vacuum deposited on a single crystal of triglycine sulphate.
Patent GB-686096-A (GB)
Title: Improvements in or relating to the manufacture of cathode ray tubes
Inventor: BAYFORD LESLIE JOHN CHARLES
IPC: C23C14/22
Filed: 1949-06-21
Abstract: 686,096. Cathode ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 20, 1950 [June 21, 1949], No. 16414/49. Class 39(i) An image reproducing cathode ray tube is made by depositing the fluorescent screen, evacuating the tube, and then vaporising metal to form a film on the screen and a wall anode without breaking the vacuum, the metal film which functions as an ion barrier and wall anode are preferably continuous. In a preferred method the tube 1, Fig. 2, is carried on supports 5, 6, and a tungsten heater with an aluminium pellet connected across the upper ends of conductors 12, 13 is introduced into the tube. The vacuum is maintained by collet 7 and rubber ring 8, tube 11 and rubber bung 14. By moving electromagnetic winding 20 upwards by threaded rod 25, worm wheel 26 and worm 27 driven by electric motor 28, conductors 12, 13 are likewise moved upwards due to magnetic material 19 so that the neck, conical wall and finally the screen can be metallised. Duct 10 provides connection to vacuum pumps. 22, 23 are guides, and 17, 18 flexible leads. A shield may be inserted in the open end of the neck to prevent deposition of metal adjacent this end. The arrangement may be adapted for the simultaneous processing of a number of tubes by providing a plurality of members 6, 12, 13. The fluorescent screen is deposited after washing the envelope and an organic film is applied to the screen before coating it with aluminium. After coating, the gun is sealed to the tube neck and the tube finally evacuated and baked. In alternative methods the tube may be moved relatively to the metal source or a plurality of sources may be disposed at suitable positions. In a further method a single metal source is permanently attached to the gun, which is sealed in position and the envelope evacuated before the metallic deposition. The wall anode may be coated with barium or an alloy after sealing in the gun and final baking of the tube to prevent distortion in operation due to contamination of the aluminium surface, i.e. due to exposure in air before the gun is sealed in. The substance is carried by the modulating electrode of the gun and evaporated by eddy current heating of the electrode. One or more such sources may be used, and may also be used for gettering. The Provisional Specification refers in addition to a method similar to that shown in Fig 2 in which the tube corresponding to 11 is a flexible bellows and in which the cathode ray tube envelope is raised and lowered. The optional further coating for the wall anode may be of magnesium or a barium-magnesium alloy. Prior art processes in which the metal film is applied to the screen before or after the formation of the wall anode are referred to.
Patent GB-612597-A (GB)
Title: Improvements in and relating to level controlling or indicating devices
IPC: G01C9/06
Filed: 1946-05-30
Abstract: 612,597. Photo-electric control of levels. PATTISON, G. R. B., CLUTTERBUCK, T., FAIRBAIRN, P. R., and MACLAREN, H. D. May 30, 1946, No. 16427. [Class 40 (i)] [Also in Group XL (b)] In a level-controlling or indicating device of the type comprising a level-sensitive device such as a spirit level arranged between a light source and a light-sensitive cell 4 in a control circuit, so that movement of the spirit level bubble varies the illumination of the cell and thus varies operation of the control circuit, false signals due to fluctuations in the intensity of the light source or changes in temperature are obviated by the provision of a second cell 8 constantly illuminated by the light source, each cell being connected to the grid in a half of a double triode valve 22. In the level position, the illumination of each cell is adjusted so that there is equal grid bias on each half of the valve 22. Should the spirit level tilt and thereby increase or decrease the illumination of cell 4, a signal is passed to a tetrode output valve 23, the output of which controls apparatus (not described) for correcting the tilt or giving an indication of the amount of tilt.
Patent GB-863305-A (GB)
Title: Improvements in crimping ferrules to electrical conductors
IPC: H01R4/20
Filed: 1956-05-28
Abstract: 863,305. Direct connections between conductors; mechanical couplings for cable sheathing. MARX, E. Aug. 28, 1957 [May 28, 1956], No. 16446/56. Class 38 (1). A conductor 4 has a ferrule 2 crimped round it or round insulation thereof, the crimp comprising three indentations 6, 8, 10 extending about half way round the ferrule, two of the indentations 6, 8 being diametrically opposite the third one 10 which is positioned axially between the other two. Each indentation is flat-bottomed with inclined walls.
Patent GB-811775-A (GB)
Title: Process for preparing a gasoline reforming catalyst
IPC: B01J37/26
Filed: 1956-05-28
Abstract: A gasoline reforming catalyst is prepared by impregnating alumina prepared according to Specification 811,774 with a solution containing chloroplatinic acid and fluosilicic acid in amounts sufficient to yield a final catalyst containing 0.01-1 per cent platinum, 0.01-1 per cent fluorine, and 0.01-1 per cent silica.  The alumina may be dried before impregnation or may be mixed to a paste with the impregnating solution before drying and then extruded.  In order to ensure uniform distribution of the platinum when impregnating pills or coarse granules of alumina, the impregnating solution should contain hydrochloric acid in a concentration of 0.1-1.0 N.  The dried catalyst may be reduced in hydrogen or calcined in air.  A test is described in which the catalyst is used for reforming naphtha in the presence of hydrogen.  Specification 787,275 also is referred to.
Patent GB-375522-A (GB)
Title: Improvements in insulated electrical conductors
IPC: H01B7/28
Filed: 1931-06-05
Abstract: An oxidation- and moisture-resistant putty for coating electric cables comprises a fatty acid pitch, such as stearin pitch, in admixture with a mineral filler such as magnesium silicate, alumina, ground quartz, mica or magnesium oxide, with or without the addition of fibre asbestos.
Patent GB-1411895-A (GB)
Title: Print head
IPC: B41J2/34
Filed: 1973-04-06
Abstract: 1411895 Semi-conductor devices TEXAS INSTRUMENTS Inc 6 April 1973 16588/73 Heading H1K [Also in Division B6] Adjacent islands of semi-conductor materials containing the elements of a thermal print head are isolated from one another by a pair of parallel grooves 14. In the manufacture of the Si print head shown the grooves are etched in an oxide-masked (100)-oriented surface of a wafer using an etchant which preferentially attacks the (100) plane. This results in V-shaped grooves 14 having (111) lateral walls. After the application of a hard layer 16, e.g. of silicon carbide, nitride or dioxide, and of a temporary polycrystalline Si handle wafer, the original wafer is lapped away to leave only the island portions 12 attached to the handle wafer. The heating elements-e.g. transistor/resistor combinations 46/48 as shown, single resistors as resistor/diode pairs-are then formed in the islands 12 by diffusion, implantation, epitaxial deposition, and drive elements are similarly formed. Al contacts and interconnection tracks are applied and the assembly is bonded to a ceramic support 26 by means of an epoxy adhesive.
Patent GB-578965-A (GB)
Title: Improvements in or relating to the distillation of heat-polymerizable compounds
IPC: C07C17/42
Filed: 1943-10-11
Abstract: 578,965. Distilling chlorostyrenes. MATHIESON ALKALI WORKS. Oct. 11, 1943, No. 16643. Convention date, Oct. 9, 1942. [Class 32] Monomeric nuclear substituted chlorostyrenes are recovered from mixtures containing them by continuously feeding the mixture into a distillation zone in which an atmosphere of steam and a substantial amount of a polyhydric phenol is maintained, and continuously withdrawing the purified chlorostyrene from the zone, the amount of the chlorostyrene present in the zone at any instant being relatively small and the time that any portion thereof is present in the zone being short. The process is particularly adapted to the purification of nuclear substituted di-chlorostyrenes. The polyhydric phenol, which acts as a polymerization inhibitor, may be relatively non- volatile under the conditions prevailing in the distillation zone, e.g., tetrachlorohydroquinone and pyrogallol; but volatile inhibitors, e.g., hydroquinone and tertiary butyl catechol, are preferred. When one of the latter is employed, the operation is so conducted that the inhibtor leaving the distillation zone is condensed, with or without condensation of some of the steam, and refluxed back into the distillation zone. The process is preferably carried out in a still provided with a still-pot and a fractionation column, the still being heated solely by live steam. The chlorostyrene passes out as an overhead product, together with steam. A volatile inhibitor may be introduced into the apparatus with the steam by first passing the later through a layer of the inhibitor. In an example, 170 ml. of crude nuclear substituted di-chlorostyrene was continuously charged to a still which contained pyrogallol as inhibitor. The operation was conducted so that there was substantially no accumulation on material in the still-pot, and the vapours were removed from the still as fast as the crude dichlorostyrene was added. 161 ml. of water-white di-chlorostyrene with refractive index 1.5792 was recovered. Other inhibitors mentioned in the Specification are:-toluhydroquinone, durohydroquinone, mono-, di- and trichlorohydroquinone, bromohvdroquinone, catechol, resorcinol, methyl and amyl chlororesorcinol.
Patent GB-982911-A (GB)
Title: Welding wire alloys
IPC: C23C2/08
Filed: 1961-05-08
Abstract: Welding alloys for are welding of bronzes either to other another bronze or to copper copper alloy or steel under a protective atmosphere comprise: .Si.0.2-0.5% .Sn.5.0-8.0% .P.not more than 0.1% .Cu.the balance Preferred ranges are as follows: .Si.0.2-0.3% .Sn.6.1-6.9% .P.not more than 0.01%
Patent GB-957018-A (GB)
Title: Scanning apparatus
IPC: H03K17/74
Filed: 1960-05-11
Abstract: 957,018. Electric distributers; gating circuits. BAILEY METER CO. May 11, 1960 [May 14, 1959], No. 16701/60. Headings H3P, H3T and H4P. Positive - going signal voltages E 1 , E 2 , E 3  are applied in sequence to a measuring amplifier 22 via gate circuits 42a, 48a, 42b, 48b, 42c, 48c, each formed of a pair of diodes, which are rendered transmissive in turn by a sequencing control unit 16 which is energized and timed by a high-frequency pulse source 18 and in response thereto normally supplies a negative potential on leads 50a-50c and establishes a positive potential on the appropriate lead when a gate is to be rendered transmissive. A negative potential causes the diode 48 in a gate to conduct and hold the diode 42 non-conductive so that the gate is non-transmissive, whereas a positive potential allows the diode 42 to conduct and apply the gate input signal voltage to the amplifier. The amplifier is of high gain, has a low output impedance, and has a negative feed-back connection including a resistor 30 which may be made equal in value to a series input resistor 40 so that the system has an overall gain of unity. The feed-back path includes a diode 28 identical with diode 42 so as to eliminate temperature effects. Bias system 32, 34, 38 is included to ensure a current flow through diode 42 to maintain a low dynamic resistance with input signals as low as zero volts.