baber/WOPTO huggingface dataset:
Patent GB-1132645-A (GB)
Title: Improving the dyeability of polymers
Inventor: MIZUTANI YUKIO
IPC: C08L101/00
Filed: 1966-02-09
Abstract: 1,132,645. Articles of dyeable thermoplastic polymer. TOKUYAMA SODA K.K. 9 Feb., 1966, No. 5698/66. Headings C3B, C3P and C3R. [Also in Division D1] An article is formed by shaping a composition containing a thermoplastic polymer, which is incapable of forming a chemical bond with a dyestuff, and uniformly dispersed therein spheroidal particles of less than 1Á diameter of a cross-linked polymer which is capable of forming a chemical bond with the dyestuff and which does not decompose at the m.p. of the thermoplastic polymer. The thermoplastic polymer may be a polymer of ethylene, propylene, styrene, vinyl or vinylidene chloride, acrylonitrile or polyethylene terephthalate. The cross-linked polymer may be obtained by polymerizing divinylbenzene and glycidyl acrylate or methacrylate, styrene maleic anhydride, an alkyl acrylate, acrylonitrile, vinyl isocyanate, acryloyl or methacryloyl chloride, acrylamide and/or methacrylamide. In examples the articles formed were filaments and films which were dyed and the cross-linked polymers were formed by polymerizing (1) styrene, divinylbenzene and maleic anhydride with benzoyl peroxide in kerosine, the polymer was treated with ethylene diamine and after mixing with polypropylene was stabilized with 2,6- ditert.-butyl-p-cresol; (2) glycydyl methacrylate and divinylbenzene with benzoyl peroxide in n-heptane, and the polymer was mixed with polypropylene and 2,21-methylene bis-(4-methyl- 6-tert.-butyl-phenol) as antioxidant; (3) acrylonitrile glycidyl acrylate and divinyl-benzene in kerosene and the polymer was compounded with polyethylene, the cresol of (1) above and calcium stearate; (5) styrene, glycidyl methacrylate and divinylbenzene with benzoyl peroxide in n-heptane and the polymer was mixed with calcium stearate and polyethylene terephthalate; (6) styrene, glycidyl methacrylate and divinylbenzene with polyvinyl chloride and benzoyl peroxide in n-heptane; (8) acrylamide and divinylbenzene with α,α<SP>1</SP>-azobisisobutyronitrile in isopropanol.
Patent GB-775014-A (GB)
Title: Pressure operated control devices
Inventor: MASHEDER HENRY ALBERT
IPC: F15B9/12
Filed: 1954-02-26
Abstract: 775,014. Fluid-pressure servomotor-control systems. GORDON & CO., Ltd., J. March 29, 1955 [Feb. 26, 1954; March 17, 1954], Nos. 5805/54 and 7811/54. Class 135. In a fluid-pressure servomotor control system in which a variable control pressure applied to a diaphragm (or piston) 2, Fig. 2, moves a pilot valve 12 controlling the application of differential pressures to the two sides of the piston of a servomotor to move it in one or other direction and the movement of the servomotor piston is proportional to a change in the control pressure and restores the diaphragm to a position in which the pilot valve is returned to its inoperative position, the pilot valve comprises a pair of double-seated valve members 15, 16 operably mounted in a yoke 11 connected by a rod 10 to the diaphragm so that one valve can be moved without disturbing the position of the other one. The valves are urged apart by springs 19 into contact with the yoke so that ports 25, 26 leading to the atmosphere are closed and ports 23, 24 connecting a compressed-air supply port 17 to the two sides of the servomotor piston are open in the inoperative position of the valve. It may be desirable to maintain a slightly higher pressure above the piston than below it, in which case a screw 27 is adjusted so that the valve 15 is just clear of the port 25 to permit slight leakage to atmosphere from above the piston. The ports 25, 26 may be formed in adjustable members so that the valve members 15, 16 may be adjusted to give a desired beat. A diaphragm loading spring 4 carried by an adjustable nut 5 from a cranked lever 6, Fig. 1, pivoted to the diaphragm housing 1 and carrying a roller 7 engageable with an angling bar 8 secured to the rod of the servomotor piston is loaded in accordance with the position of the piston. On, for example, an increase in control pressure the diaphragm 2 moves downwardly so that the valve 15 closes the port 23 and opens the port 25, the valve 16 being unaffected. The servomotor piston then moves upwardly, increasing the compression in the spring 4 to return the diaphragm 2 and thus the valve 15 to its inoperative position to position accurately the piston in its cylinder in accordance with the control pressure. Instead of compressed air, oil or water may be used as the working fluid in which case the exhausted fluid is collected.
Patent GB-756493-A (GB)
Title: Improvements in or relating to alternating current electric motors
Inventor: BARNES HAROLD ERNEST
IPC: H02K17/06
Filed: 1954-02-27
Abstract: 756,493. Single-phase induction motors. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 10, 1955 [Feb. 27, 1954], No. 5836/54. Class 35. A shaded-pole induction motor which is capable of running as a two- or four-pole machine has four shaded salient poles 1, 2, 3, 4 each carrying a magnetizing winding 12 which may be energized to produce four poles, as shown, or to produce two pairs of like poles to give two-pole operation. In addition, when connected for two-pole operation, a phase-splitting condenser C is inserted, as shown in Fig. 5.
Patent GB-683935-A (GB)
Title: Hand stamps
IPC: B41K1/04
Filed: 1951-03-12
Abstract: 683,935. Hand-stamps; printing-surfaces. NATIONAL CASH REGISTER CO. March 12, 1951 [March 15, 1950], No. 5874/51. Class 100 (ii). In a hand stamp with interchangeable type the cylindrical longitudinally bored handle has an apertured magnet fixed in a counter-bore at its lower end and a spring- biassed ejector member slidable within both bores and projecting, upon depression, beyond the magnet aperture; the type member has a ferromagnetic portion adapted to fit the counter-bore and contact the magnet. The typemember may be entirely of magnetic material or of rubber type mechanically interlocked or secured by adhesive to a part of magnetic material. As shown the wood or other non-magnetic handle shaft 20 has a horseshoe magnet 26 inset in its conical end 21 to attract into a shallow bore 30 any one of a number of steel discs 29 cemented to porous ink-impregnated resilient rubber &c. type bodies 28 normally held in apertures 31 in a rubber tray 32; the discs 29 may have money values printed on them corresponding to the type surfaces. A type body is detached from the handle by depressing a spring-loaded push-rod 22 in an axial hole 33 in the handle.
Patent GB-734584-A (GB)
Title: Process for the treatment of fuel-ore mixtures
IPC: C21B13/14
Filed: 1952-03-07
Abstract: 734,584. Iron manufacture; agglomerating ores. DEMAG AKT.-GES. March 7, 1952 [March 8, 1951], No. 5958/52. Classes 72 and 82 (1). A two-stage smelting process for fuel-ore mixtures including fuel-ore briquettes comprises first coking, degasifying and preliminarily reducing the mixture at least partly by generation of induced electric currents within the mixture and then smelting the treated mixture in known manner. The fuel-ore mixture may consist of fine ballings from a bloomery or puddling furnace and fuels. The mixture may first be heated by another source of heat such as hot circulating gas and then further heated by induced currents, e.g. while moving downwardly through the induction heater. All or part of the ore fed to the induction heater may be pre-roasted or prereduced. The induction heating chamber may be formed as a passage in a low shaft furnace or, as shown in the Figure, it may be a downwardly-flared chamber 2 mounted on top of the low shaft furnace 1, being charged by a bell and hopper device mounted on the chamber. Low-temperature carbonization gas is removed through duct 5, condenser 6 and blower 8. Top gas from the smelting furnace is separately recovered by duct 11, cyclone 12, where it pre-heats the air blast to the shaft furnace, and blower 14. Alternatively the gases may be recovered together either from the top of the induction heating chamber or from between that chamber and the shaft furnace. Part of the burden, e.g. lime may be separately fed to the furnace without passing through the induction heater. Further, operation of the shaft furnace may be periodically interrupted while induction heating of the charge in the heating chamber is taking place.
Patent GB-139769-A (GB)
Title: Improvements in or relating to the sleeve-valves of internal combustion sleeve-valve engines
IPC: F01L5/06
Filed: 1920-02-27
Abstract: 139,769. Zurcher, R., (Assignee of Soc. Anon. des Ateliers Piccard, Pictet, et Cie). March 3, 1919, [Convention date]. Valves.-Relates to packing-devices for sleeve valves having reciprocating, rotary, oscillating, or combined reciprocating and rotary movement. Two or more separate ported packing-segments d are housed in an annular recess b<5> in the outer surface of the sleeve, with clearance g between adjacent edges to permit of expansion, and with clearance between the segments and the base of the cavity to permit of the working pressure on the cylinder forcing the segments cutwardly against the cylinder walls. In a modification, a separate recess such as b<5> is provided for each segment. The clearance in the cavity b<5> is small, so that the gases are throttled in reaching the space behind the segments. The segments may be formed with an external diameter equal to, or slightly greater or less than, the cylinder bore, and the adjacent edges at g may run in an oblique direction, or they may be stepped in a vertical direction. In the arrangement shown, the segments are connected loosely to the sleeve by pins d<2> riveted in them, engaging in holes in the sleeve, and exposed at their inner ends to the working pressure; but the pins may be secured to the sleeve. The Specification as open to inspection under Sect. 91 (3) (a) states also that the invention may be applied to engines having two sleeve valves in each cylinder. This subject-matter does not appear in the Specification as accepted.
Patent GB-306712-A (GB)
Title: Improvements in and relating to brushes
IPC: A46B7/04
Filed: 1928-02-27
Abstract: 306,712. Gade, E. K. Feb. 27, 1928. Bent hollow handles; holders with recessed-back retaining- devices for brushes.-In a brush of the kind having a bristle head removably engaged in a recess in the handle member the head is provided with a projecting flange adapted to cover the edges of the material of the handle around the recess. The bristle head 1 is retained in the handle recess 4 by a block 7' engaging a notch 6 in its rear end, the block 7 being carried on the end of a frictionally-held rod 8 in a bent tube 9 mounted in the hollow handle 10, as described in Specification 296,244. The bristle head 1 is provided with a flange 3 projecting over the edge of the material of the recess 4.
Patent GB-308438-A (GB)
Title: Improvements in or relating to photographic printing and developing machines
IPC: G03B27/30
Filed: 1928-02-28
Abstract: 308,438. Halden & Co., Ltd., J., and Halden, J. B. Feb. 28, 1928. No Patent granted (Sealing fee not paid). Printing-apparatus with continuous movement of negative and printed surface combed with developing apparatus.-The web of print paper after passing through the printing apparatus 5 which is fitted with an adjustable endless belt 10, passes over a roller 13 which is supplied with the necessary developing medium and is rotated at a speed different from that of the printed web so as to wipe the developer evenly over the print. The developed print is rolled on a loose roll 20 which rests on two pairs of angularly disposed endless belts 19. The belts 19 and the roller 13 are driven from the roll 9 over which the endless belt 10 passes. The developing roller 13 may be surfaced with an absorbent material, and, instead of dipping directly into a trough, may rotate in contact with a supply roller 14 which dips into a trough 15 kept supplied with developer. To adjust the development, the pressure between the rollers 13, 14 is adjustable.
Patent GB-1026858-A (GB)
Title: Method of contacting semiconductor components
IPC: C04B37/02
Filed: 1965-02-12
Abstract: 1,026,858. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Feb. 12, 1965 [Feb. 18, 1964], No. 6174/65. Heading H1K. In a method of making a solderless contact between a semi-conductor crystal and a metal body, the surfaces are prepared by optical plane-polishing, coating one or both of the surfaces with a noble metal, such as gold, and placing the prepared surfaces in contact without the use of pressure or heat. The surfaces adhere due to molecular forces, but they can relatively easily be displaced laterally allowing differential expansion of the metal body and the crystal. The gold coatings are applied by evaporation in vacuo, and the application may be preceded and/or followed by degassing using heat or electron beam bombardment in vacuo. If the contact produced is too intimate to allow relative lateral movement of the metal body and the crystal an intermediate plate or disc of a metal having the same coefficient of expansion as the semi-conductor material is hard soldered to the metal body and connected to the crystal as described above.
Patent GB-1436031-A (GB)
Title: Slide mechanism with restraints against transverse movement
IPC: F16C29/10
Filed: 1974-02-11
Abstract: 1436031 Seat slides COACH & CAR  EQUIPMENT CORP 11 Feb 1974 [2 March 1973]  6206/74 Heading A4J [Also in Division F2] A slide mechanism, e.g. for a vehicle seat, comprises a stationary member 22 Fig. 7, a bearing element 25, and a sliding member 21, the bearing element restricting the member 21 to linear sliding movement and restraining it against movement in other directions by engaging it at a plurality of locations of contact 40-43, the bearing element and the member 21 being so formed that at each location there is substantially linear contact between the element and the member, thereby minimizing friction. The linear contact is achieved by providing the bearing element with convex contacting surfaces. The element 25 is located with respect to the member 22 by a key 38 engaging in an aperture 27. The element is of a plastics bearing material. Each slide mechanism comprises a pair of bearing elements 25 Fig. 9 located at opposite ends of the members. The members can be locked with respect to each other by a spring-loaded rod 74 which engages in one of a series of apertures 75. The rod is released by operation of a handle 79 which causes a plate 70 to turn about a pivot pin 71. A linkage 80-82 operates a similar rod 84 on the opposite slide mechanism.
Patent GB-549458-A (GB)
Title: Improvements in or relating to fuel injection valves for oil engines
IPC: F02M61/00
Filed: 1941-05-19
Abstract: 549,458. Fuel injectors. DOXFORD & SONS, Ltd., W., and KELLER, K. O. May 19, 1941, No. 6433. [Class, 7 (iii)]. A fuel-injection needle valve 12 operates within a nozzle body 10 which is made in one piece of a metal, such as steel, able to resist the high pressure and corrosive action of the fuel, and is mounted in a holder 15 of cast iron or the like, through which the fuel is led at 17 to'passages 20 in the nozzle body leading to the valve, which is reduced in diameter at 21 to provide a further passage for the fuel. The holder 15' may be shrunk or screwed on to the nozzle body. Valves of the kind to which the invention relates are described in Specifications 127,980, 154,988, [both in Class 7 (iii)], and 532,711.
Patent GB-680366-A (GB)
Title: Improvements in or relating to motor vehicle lifts
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: B66F7/28
Filed: 1950-03-15
Abstract: 680,366. Vehicle lifts. LAYCOCK ENGINEERING CO., Ltd. Jan. 19, 1951. [March 15, 1950] No. 6447/50. Class 78 (iii). Vehicle lifts of the kind having a pair of wheel lifting tracks 8 are modified to accommodate three wheeled vehicles by suspending a ramp and platform unit A between the tracks to support the third wheel 26. This unit consists of a dished platform 1 suspended from flanged wheels 14 which rest on top of tracks 8, and a ramp 10 secured to a beam 7 which forms a main support for the tracks and is secured to one of a pair of lifting rams (not shown). When not in use the platform 1 is held relative to the ramp by a pivoted latch 23 which engages a catch 24 on beam 7, but when a wheel 26 has been rolled onto platform 1 it displaces a plate 21 and pivots the latch about a pin 19 so disengaging the platform from the ramp and allowing the vehicle to move along the tracks into a central position. In a modification (not shown) the ramp and platform are formed as an integral unit, and the ramp is so shaped that, by abutting against the beam 7 when the vehicle is centrally arranged on the platform, it forms a movement limiting member.
Patent GB-1128945-A (GB)
Title: Punch and method for producing wedge-shaped faces in sliding contact bearings
IPC: B21D37/04
Filed: 1966-02-14
Abstract: 1,128,945. Bearings. KARL SCHMIDT G.m.b.H. 14 Feb., 1966 [20 Feb., 1965], No. 6448/66. Heading F2A. [Also in Division B3] A method of stamping wedge-shaped lubrication depressions 5 in a bearing surface 6, comprises using a punch having a flexible intermediate section 4 allowing the punch-end to tilt during use. The intermediate section may be circular or polygonal and disposed eccentrically or concentrically of the punch-axis. In the latter case, Fig. 3 (not shown), the depression is formed over an opening (7) in the bearing (6) providing the required eccentricity, between the intermediate section and the centre of the depression, necessary for tilting the punch-end. A number of punches may be used together, Fig. 6 (not shown), and ground simultaneously.
Patent GB-254771-A (GB)
Title: Improvements in electrical protective arrangements for alternating current systems
IPC: H02H3/30
Filed: 1925-03-10
Abstract: 254,771. Brown, W. J., and Metropolitan-Vickers Electrical Co., Ltd. March 10, 1925. Cut-out arrangements.-Relates to protective systems for alternating current circuits in which pilot wires are dispensed with by the use of oscillators which supply high frequencies superimposed upon and derived from the line so that the frequencies are generated for positive or negative half cycles of the line current, and in the event of fault or phase displacement set up or diminish the beat frequencies arising from the two superimposed frequencies as described in Specifications 252,036, 252,810, and 254,770. According to the invention the oscillations are generated continuously from a separate source and are superimposed on the line, positive or negative half cycles being damped out during either positive or negative half cycles of line current or of a current representative thereof. In the arrangement shown a triode 5 with a tuned anode coil 7 coupled to a grid coil 6 is supplied from a high tension battery or D.C. generator 9 and supplies continuous oscillations to the line through the coupling 11 and condensers 12 or by other known means. These oscillations are damped out for one halfcycle of the line current by means of a triode or, as shown, a diode 13 acting as an absorption valve with its anode connected to the grid coil and its cathode connected to a transformer 14 in the line. The battery 18 constitutes an anode bias for the diode, and the battery 19 a grid bias for the oscillating triode in place of the more usual grid condenser and leak. The transformer generates a high voltage to give a sharp cut off. The protective relay is indicated at 4. The diode 13 substantialy short-circuits the grid coil 6 and therefore damps out the oscillations for halfcycles of the line current. A high and preferably supersonic beat frequency is employed as described in Specification 252,810 referred to above.
Patent GB-493259-A (GB)
Title: Improvements in or relating to the production of gas mixtures rich in hydrogen
IPC: C10B57/18
Filed: 1938-03-03
Abstract: In a process for the production of gas mixtures rich in hydrogen of the kind described in the parent Specification, in which the partial combustion of methane with oxygen takes place in a double shafted converter containing coke, the oxygen is diluted with a gas, or with a vapour such as water vapour, the reaction products of which with the coke do not constitute impurities in the resultant gas of high hydrogen content.  A suitable diluent gas is a portion of the methane containing gas.  The diluent gas may be supplied through nozzles adjacent to those supplying oxygen, or may be added to the oxygen in an antechamber.
Patent GB-846996-A (GB)
Title: Improvements in steam generating plant and an improved method of generating steam
Inventor: ZOLLER RONALD ERNEST
IPC: G21D5/14
Filed: 1958-03-03
Abstract: 846,996. Nuclear power plant. BABCOCK & WILCOX Ltd. March 3, 1959 [March 3, 1958], No. 6713/58. Class 39(4). [Also in Group XIII] A nuclear reactor, e.g. a heterogeneous breeder, is cooled by liquid Na, K, or a mixture of the two. The liquid metal is used to superheat steam which has been produced by heat exchange between superheated steam and water. Liquid metal from a reactor 1 superheats steam in superheaters 4. The steam is produced in evaporators 9 heated by the superheated steam, for starting, steam is provided by a boiler 14. The evaporators are arranged to produce slightly superheated steam so that if a tube fails the liquid metal will come into contact with steam rather than water. The liquid metal may also be used to reheat steam between turbine stages. The steam pressure in the superheater is made greater than that of the liquid metal, and steam temperature warning devices are provided.
Patent GB-576231-A (GB)
Title: Improvements in or relating to the manufacture of compositions containing aromatic derivatives of trichloroethane
IPC: C07C17/26
Filed: 1944-04-12
Abstract: A solid composition containing an aromatic derivative of trichloroethane having the general formula R2CH.CCl3, wherein R represents the residue of an aromatic hydrocarbon or halogen derivative thereof, is obtained by treating chloral or its hydrate or alcoholate with an aromatic hydrocarbon or halogen derivative thereof and concentrated sulphuric acid or oleum in the presence of an inert powder.  Advantageously the weight of inert powder used is 15 to 40 per cent of the weight of the chloral as such contained in the chloral reactant.  Specified inert powders or fillers are: china clay, talc, kieselguhr and fuller's earth. In examples (1)-(3): different quantities of monochlorobenzene, china clay and concentrated sulphuric acid, are mixed with (1) chloral hydrate, (2) and (3) chloral alcoholate and, after a reaction time of 2 to 3 hours, the mixture is added to a large volume of cold water, filtered, and the solid washed, dried and ground.  Specifications 547,871, 547,874 and 573,044 are referred to.ALSO:A solid insecticidal composition containing an aromatic derivative of trichloroethane having the general formula R2CH-CCl3, wherein R represents the residue of an aromatic hydrocarbon or halogen derivative thereof, is obtained by treating chloral or its hydrate or alcoholate with an aromatic hydrocarbon or halogen derivative thereof and concentrated sulphuric acid or oleum in the presence of an inert powder. Advantageously the weight of inert powder used is 15 to 40 per cent. of the weight of the chloral as such contained in the chloral reactant.  Specified inert powders or filters are: china clay, talc, kieselguhr and fuller's earth.  In examples (1)-(3): different quantities of mono-chloro benzene, china clay and concentrated sulphuric acid are mixed with (1) chloral hydrate; (2) and (3) chloral alcoholate.  After a reaction time of 2 to 3 hours the mixture is added to a large volume of cold water and filtered and the solid washed, dried and ground.  Specifications 547,871, 547,874 and 573,044, [Group IV], are referred to.