baber/WOPTO huggingface dataset:
Patent GB-648812-A (GB)
Title: Process for coating by means of thermoplastic transfer sheets
IPC: B44C1/17
Filed: 1946-04-17
Abstract: 648,812. Coated fabrics ; compound sheet materials. SYLVANIA INDUSTRIAL CORPORATION. April 17, 1946, No. 11766. Convention date, May 18, 1945. [Class 140] [Also in Group XVI] Surfaces, e.g. of paper, fabric and felt, are coated by means of a composite transfer sheet made by applying to a smooth, non-fibrous surface of a temporary backing a layer of a liquid monomeric or partially polymerized or partially condensed resin-forming organic compound free from volatile solvents, heating to form a solid thermoplastic film which has a softening point than the surface of the backing, does not adhere permanently thereto and is releasable to another surface under heat and pressure, adhering the film to a surface to be coated, and stripping off the backing. Suitable liquids are allyl alcohol and its derivatives, furfural, furfuryl alcohol, acrylic and methacrylic acid esters, e.g. ethyl acrylate, methyl, n-butyl, isobutyl, methoxyethyl, ethoxyethyl, butoxyethoxy and cyclohexyl methacrylates, vinyl alcohol derivatives, coumarone, indene, vinyl acetate, vinyl ethyl ether, heptylenes, octylenes and mixtures thereof ; partially polymerized coumarone-indene resins and partially condensed phenol-formaldehyde, ureaformaldehyde, phenol-furfural and alkyd resins. The liquid may contain polymerization catalysts and plasticizers, e.g. soft alkyd resins, dibutyl phthalate and paraffin wax. The backing sheet may be of metal, hydrophilic film-forming materials, e.g. regenerated cellulose, alkali soluble cellulose ethers, gelatine, casein, denitrated nitrocellulose, deacetylated chitin and zein, or paper, fabric or felt surfaced therewith ; hydrophobic film-forming materials such as unplasticized cellulose esters and ethers, high melting-point thermoplastic or thermosetting resins, e.g. phenol-aldehyde, urea-aldehyde, urea-aldehyde-alcohol ethers, melamine-aldehyde and sulphonamide-aldehyde resins, or paper, felt or fabric coated therewith. The transfer film may be applied to the surface to be coated by heated platens, calender rolls or blanket-roll presses at temperatures between 50‹ and 160‹ C. and pressures between 5 and 450 lbs. per square inch. After stripping, the film may be polished, decorated, embossed or coated. The products may be used for making raincoats. Examples describe polymerizing (1) methyl methacrylate, which may contain polymethyl methacrylate, on a backing sheet of regenerated cellulose and transferring to paper ; (2) a mixture of ethyl acrylate and vinyl acetate on kraft paper coated with a ureaformaldehyde-butylene-ether resin and transferring to fabric ; (3) a liquid phenol-furfural resin on an endless aluminium band and transferring to nylon fabric.
Patent GB-779448-A (GB)
Title: Combined automatic and straight-air fluid pressure brake equipment
IPC: B60T13/62
Filed: 1956-04-18
Abstract: 779,448. Fluid pressure brakes. WESTING- HOUSE AIR BRAKE CO. April 18, 1956 [May 23, 1955], No. 11768/56. Class 103 (1). A fluid-pressure brake system 1, intended particularly for a vehicle adapted for use on both rail and road comprises a brake pipe 4, a straight air pipe 71, a brake cylinder 12, and service valve means 1 operative under one condition responsively to a reduction in brake pipe pressure below a normal full charge value, while the straight air pipe 71 is vented, to provide in the brake cylinder 12 fluid at a pressure corresponding to said reduction in brake pipe pressure, and operative under another condition responsively to pressurization of said straight air pipe 71, while brake pipe pressure is at its normal charge value, to provide in the brake cylinder 12 fluid at a pressure corresponding to that in the straight air pipe 71. The distributer valve 1 thus acts in conventional manner for railway service when the brake pipe 4 is connected by its couplings 5 and 6 to the train pipe, the chamber 70 of the service valve device 16 being vented to atmosphere through pipe 71. As used for road operation, fluid pressure from the reservoir on the tractor is passed by a reducing valve 98 so that the pipe 4, as extending between the couplings 5 and 6 is kept at the normal full charge value of the brake pipe pressure. Variations of pressure in the air pipe 71 are passed to the chamber 70 and thereby deflection of diaphragm 55 cause displacements of the slide valve 77 so that the appropriate pressure is admitted to the brake cylinders 12. A form of electro-pneumatic control for the operation of the system on a train is also described.
Patent GB-102044-A (GB)
IPC: G01C19/00
Filed: 1916-08-19
Abstract: 102,044. Crucible Steel Co., (Assignees of Shonnard, H. W.). Nov. 3, 1915, [Convention date]. Addition to 101,225. Gyroscopic apparatus.- A gyroscope comprising an electric motor is initially spun by a heavy current and is maintained spinning by a lighter current, separate circuits being provided for the currents, The motor is preferably a three - phase induction motor, its rotor constituting the gyroscope flywheel and its stator 4 being secured to a housing 5, which is preferably exhausted and forms the inner gimbal ring of the gyroscope. The heavy current is a three-phase current and is controlled by a sliding member 9, which also locks the gyroscope while the current is passing. The member 9 carries three insulated conducting-tubes 12, to which the current passes from the leads 16 through conducting-rods 13, and also carries a locking-pin 18. The member 9 is moved by means of a rack 19 and pinion 20 through gearing operated by a wrenchcup 28 or by handle 29, and when it is in the position shown, the tubes 12 engage with contact sleeve 11 on the housing 5, which are connected by leads 10 to the stator 4, and the pin 18 enters a pocket 17 in the housing. When the gyroscope has attained the required speed, the member 9 is movetl out of the contacting and locking position, and a lighter current to maintain the spinning is led to one only of the windings of the stator through contacts at the axes of the gimbal bearings. Fig. 5 u shows a preferred construction of the lower bearing of the outer gimbal 8, in which an insulated conductor rod 30 having a pointed end lying in the gimbal axis is engaged by a spring member 32 connected to a lead 33. The rod 30 is connected by a conductor 34 to the spring member of a similar contact at one of the bearings for the inner gimbal, and the conductor rod of that contact is connected to the stator 4. Similar contacts at the other bearings are connected to a lead 38, Fig. 1, and to the stator to complete the circuit. The leads 33, 38 are preferably of less current-carrying .capacity than the leads 10. The gyroscope may be used to control a servo-motor 3 for steering torpedoes or aeroplanes, or for other purposes.
Patent GB-552645-A (GB)
Title: Improvements in or relating to granular or powder explosives and their manufacture
IPC: C06B21/00
Filed: 1941-09-15
Abstract: 552,645. Granular explosives. WHETSTONE, J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 15, 1941, No. 11775. [Class 9 (ii)] A granular detonating explosive for blasting purposes is manufactured by , emulsifying a molten organic high, explosive, such as T.N.T., with the assistance of an emulsifying agent such as Agar Agar, carageen moss, flour, dextrin, and the like in a melt comprising ammonium nitrate and at least one non- volatile compound adapted to lower the melting point of the nitrate and which congeals to form a solid mass when cooled to a temperature higher than those at which explosives are tested for climatic storage, and congealing and granulating the resulting emulsion. The non-volatile compound may be a metal nitrate, a hydrated metal nitrate such as calcium nitrate tetra-hydrate, lead nitrate, alkaline metal nitrate or magnesium nitrate hexanitrate. The congealed emulsion may be caused to fall on a rapidly rotating disc so that the drops are individually congealed by projection therefrom into a cooling atmosphere. Specification 537,579 is referred to. Several examples are given in the Specification.
Patent GB-841847-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L29/00
Filed: 1956-04-18
Abstract: 841,847. Semiconductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 18, 1956 [April 21, 1955], No. 11796/56. Drawings to Specification. Class 37. In a semiconductor device comprising two semiconductor regions of different conductivity types separated by a rectifying junction, one of which regions comprises a buffer layer not thicker than half the diffusion length therein but thicker than twice the Debye Huckel length, a reflector layer is provided on the side of the buffer layer remote from the junction at least twice as thick as the buffer layer and having a resistivity at least three times less than that of the buffer layer. A connection is provided to the buffer-layer but the reflector is free of connections. The Specification shows that such a rectifying junction exhibits an emitter efficiency comparable with that of a normal junction between an emitter consisting of material of the same resistivity as the reflector layer and a base zone of the same material as the other zone. At the same time it possesses the low capacity and high breakdown voltage associated with a junction between an emitter or collector of material of the same resistivity as the buffer layer and a base zone of the same material as the other zone. The reflector layer may be of the same conductivity type as the buffer or of the opposite type. In the embodiment a junction transistor comprises an N type base zone and emitter and collector zones each consisting of a buffer layer and reflector layer with dimensions and resistivities as specified above. The emitter and collector connections are made to the respective buffer layers of the zones and the reflectors left floating. The invention is also said to be applicable to rectifier and photoelectric cells.
Patent GB-712246-A (GB)
Title: Improvements in or relating to coiler drums for strip material
Inventor: RUSSELL ROBERT GORDON
IPC: B21C47/32
Filed: 1951-05-21
Abstract: 712,246. Collapsable rollers. DAVY & UNITED ENGINEERING CO.. Ltd. May 21, 1952 [May 21, 1951], No. 11812/51. Divided out of 712,247. Class 100 (1). [Also in Group XXII] A segmental expansible and contractable coiler drum, particularly for use with rolling mills and having a slot 4 for receiving one end of the strip to be wound, has a pair of jaws 57, 58, the jaw 58 consisting of several sections each mounted on a plunger 67 pressed to the open position by springs 68 and closed by one of several rollers 54 on the drum shaft 34, and each roller 54 acting on a cam slope 77 on a spring-pressed plunger 71 within the first plunger so that, to accommodate different thicknesses of strip, upward movement of the plunger 71 after the strip has been gripped is taken up by the compression of springs 73. The jaw faces are parallel to but lie above the surfaces of the slot 4 so that the strip is kinked between surfaces 79, 80 on the jaws and the jaws are arranged so that centrifugal force tends to increase the clamping action. The drum is mounted on its shaft with a small amount of lost motion limited by surfaces 43, 44 and, when securing the strip to be wound, is braked so that slow rotation of the shaft will cause the rollers 54 to grip the strip in the jaws and also, by means of rollers 45, 46, expand the pivoted segments 2, 3. Means 8 for closing the slot 4, as described and claimed in Specification 712,247 also is described. Specification 663,056, [Group XXII], also is referred to.
Patent GB-573940-A (GB)
Title: Improvements in or relating to stipplers
IPC: B05C17/02
Filed: 1943-07-21
Abstract: 573,940. Stipplers. PADGETT, P. M. July 21, 1943, No. 11829. [Class 95] A stippler, for use in painting and decorating, comprises a roller C axially and revolubly mounted in a framework A, said roller including a cylinder or sleeve D having formed thereon, or moulded integral therewith, a plurality of radial resilient projections E arranged in longitudinally spaced rows, each projection being capable of independent universal movement at its outer extremity. The single roller C may be replaced by a plurality of rollers. Fig 4 shows various forms of projections E, and a flat sheet J from which the sleeve D may be formed.
Patent GB-329475-A (GB)
Title: Improvements in dry gas meters
IPC: G01F3/22
Filed: 1929-04-17
Abstract: 329,475. Thorp, F., Butterworth, E., and Parkinson & Cowan (Gas Meters), Ltd. April 17, 1929. Gas meters. - In a gas meter of the dry diaphragm type the diaphragm compartments are formed by two cylindrical members a, b, one of which b is open at both ends and the other at one end, the pan b being soldered to the closed end c of the pan a. Each cylindrical member has a cover g. The diaphragms are secured by metal rings f sprung into peripheral grooves d in the members a and b. The centre piece h of each diaphragm is carried by a horizontal arm i pivotally mounted on the side of the cylindrical member and operates the crank arm s through arms m, suspended from bearings n in the meter casing, cranks p and links q. Gas passages u from the diaphragm compartments extend to the valve platform v, the space below the platform being open to the gas outlet and that above to the gas inlet y
Patent GB-527803-A (GB)
Title: Improvements in and relating to the manufacture of bacterial antigenic and/or immunogenic preparations
IPC: A61K39/02
Filed: 1939-04-20
Abstract: 527,803. Antigenic and like preparations. HAWORTH, W. N., STACEY, M., HEMS, B. A., ROBINSON, F. A., and GLAXO LABORATORIES, Ltd. April 20, 1939; No. 11939. [Class 81 (i)] Antigenic and immunogenic preparations are obtained from bacterial cultures by dissolving therefrom a polysaccharide complex by treatment of the cells with solutions of salts of primary, secondary and tertiary amines, amides, and their derivatives and hydrazines, e.g. the salts of guanidide, mono-, di- and tri-ethanolamine, pyridine, quinoline, piperidine and morpholine. Such a solution, prepared for example by trituration of cells of B. typhosum with guanidine acetate is precipitated by addition of alcohol, the immunogenic polysaccharide complex is collected and is nearly free from extraneous protein. Other organisms which may be extracted are pneumococci, gram-negative haemophilic organisms, bacteria of the coli-typhoid-dysentera-salmonella group and gram-negative cocci. The use of salts of urea is disclaimed.
Patent GB-1204930-A (GB)
Title: Machine for wrapping strip material around a substantially circular member
Inventor: MARTINEZ MARIO
IPC: H01B13/08
Filed: 1968-03-12
Abstract: 1,204,930. Covering cables. M. MARTINEZ. 14 Feb., 1969 [12 March, 1968], No. 11976/68. Heading B8G. A machine for wrapping paper tape 29 around an electric cable comprises a plurality of carriers 10 for reels of tape, a closed casing 25 housing the carriers and means, e.g. gears 16, 18, 20, belt 17 and shafts 19, 21, for rotating the carriers and casing about the cable axis, the casing enclosing the point at which wrapping takes place, and being supported at each end in a bearing. The casing 25 prevents displacement of and damage to the tape by air currents, and may be rotated by means other than the carrier rotating means. An access opening with a door is provided in the casing.
Patent GB-1270122-A (GB)
Title: Improvements in or relating to gear pumps
Inventor: HALL ERIC SKELTON
IPC: F04C2/08
Filed: 1969-03-06
Abstract: 1,270,122. Gear pumps and motors. PLESSEY CO. Ltd. March 4, 1970 [March 6, 1969], No.11998/69. Heading F1F. [Also in Division C7] A gear pump (or motor) wherein at least the teeth of the gears are made from a material consisting of a dispersion of hard metal carbides, silicides, borides or nitrides in a heat-treatable ferrous matrix. A suitable material is that known as Ferro-TiC-grade C. This material may be machined prior to heat-treatment to its ultimate shape with the addition of a very small finishing allowance which may be removed by grinding.
Patent GB-568339-A (GB)
Title: A tap for controlling the supply of liquid, gas or steam
IPC: F16K31/524
Filed: 1943-07-23
Abstract: 568,339. Valves. SMITH, M. S. PARNELL-. July 23,1943, No. 12003. [Class 135] A tap spindle has a coned portion b, Figs. 1 and 3, maintained in contact with a seating a<2> by a screw F, and carries a pin J or a cam K adapted to open a ball-valve D. A recess H receives graphite or other grease and a ball bearing G is provided.
Patent GB-591577-A (GB)
Title: Improvements relating to valve sacks or bags
IPC: B65D30/24
Filed: 1945-05-14
Abstract: 591,577. Valve bags. MEDWAY PAPER SACKS, Ltd., and WINSKILL, J. W. May 14, 1945 No. 12065. [Classes 94 (i) and 94 (ii)] A method of sealing a valve bag or the like consists in applying a coating of a synthetic resin product to the inner surface of the valve flap or of a projecting sleeve secured thereto, flattening opposed coated surfaces into contact and sealing by the application of heat; the coating is preferably moisture-resistant. In one form, Fig 2, a strip of crepe paper 27 having its inner surface coated with the resin product along the edges 28a, 28b is secured to a projecting flap portion of the web 10 of a valve bag by adhesive along the edge 18. On folding the bag along gusset-folding lines 15, 16, 17 and tucking in the valve flap by folding along lines 19, 20; 21, 22; 23, 24; 25, 26, the strip 27 protrudes as a sleeve 27, Fig. 4, the top of the bag being joined by stitching 30. The bag tis then sealed by the application of heat to the edges 28a, 28b in contact. In another form, Fig. 5, a diamond folded block-end is formed, composed of side flaps 31, 31a folded outwards, and end flaps 32, 32a. A similar strip 27x of crepe paper is secured to the flap 32 by folding under its edge and pasting in place, the whole surface of the strip not in contact with the flap being coated with the resin product. On folding the flaps 31a, 31 along lines 35a, 35 into the position shown in Fig. 7, and securing by pasting on a cover strip 40, or by stapling, the strip 27x projects as a sleeve which is then sealed by heat as before. Specification 474,425 is referred to.
Patent GB-611509-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P3/12
Filed: 1945-05-15
Abstract: 611,509. Control of D.C. motors. IGRANIC ELECTRIC CO., Ltd. May 15, 1945, No. 12166. Convention date, May 24, 1944. [Class 38 (iii)] Where a shunt motor A, which may be supplied through a rectifier 1 from A.C. mains, has a field rheostat providing for speed variation, sudden increase of excitation to reduce the speed of the motor causes a relay to respond to the p.d. across the field winding and thereby a resistance load R to be connected for a predetermined period to absorb regenerated energy and assist retardation of the motor. A relay 4, the actuating winding 4a of which is controlled by a relay 5, closes contacts 4b in response to the rise in potential across the field winding F which results from rapid reduction in the resistance of the field rheostat FR. The relay 5 is actuated momentarily by coils 5a, 5b jointly. The winding 5a is energized through a rectifier 7 by the charging current of a condenser 8 as the potential across field winding F rises, but the winding 5b and also winding 4a can be energized only if a relay 6, which responds to load current of the motor, has not lifted; the relay 5 is thus inoperative during acceleration of the motor. When the relay 5 operates it closes the energizing circuit for relay 4 and this energization is maintained whilst a charged condenser 10 is discharging through the relay coil 4a. Interlock contacts 4d, 4e prevent re-energization of relay 5 and allow condenser 8 to discharge through resistances and a rectifier 9. Acceleration of the motor with a low speed setting of the field rheostat is assisted by a relay 3a in the armature circuit which short circuits the rheostat.
Patent GB-1532897-A (GB)
Title: Continuous manufacture of butylene terephthalate polymers
IPC: C08G63/85
Filed: 1976-03-26
Abstract: 1532897 Continuous transesterification and polycondensation process for polyesters BASF AG 26 March 1976 [29 March 1975] 12199/76 Heading C3R  A linear high M.W. (butylene terephthalate) polymer (P) is made continously by (A) transesterifying a component D comprising dimethyl terephthalate with a component (B) comprising 1,4-butanediol in successive stages at temperatures rising from 160-230 C. in the presence of a transesterification catalyst, methanol being constantly distilled off; (B) passing the resulting mixture comprising dihydroxybutyl terephthalate and its oligomers at 230-270 C. and 20-2 mmHg up through a bundle of stationary heated tubes, and the resulting vapour/liquid mixture through a hold tank immediately above the tube ends; and (C) palycondensi is the resulting precondensate in the presence of a polycondensation catalyst at 240-260 C. and 0À1-2 mmHg, with continuous formation of a thin film, where in each of (D) and (B), #40% mole, based on (D) and (B) respectively, of other linear-polyester-forming starting materials may be present; the mole ratio (D) : (B) is from 1 : 1À2 to 1 : 1À5; the volume ratio (hold tank)/(tube bundle) is from  to 2À5; the mean residence time in (tube bundle + hold tank) is 10-60 minutes; the predominant part of the heat required in stage (B) is supplied to the mixture in the tubes; and the mixing of the reaction mixture in stage (B) is effected predominantly by vapour bubbles rising from the tubes. 0À1-1% mole of more than difunctional cross-linking agents, e.g. trimethylpropane or trimesic acid, may be cocondensed with the above ingredients. There may be 0À02-0À3%, based on (D), of the transesterification catalyst, which may be, e.g. a fatty-acid salt of Zn, Ca, or Mn, or a titanyl compound or Ti(OBu) 4 ; and there may be 0À02-0À3% of the polycondensation catalyst, which may be one of the said Ti compounds.
Patent GB-327033-A (GB)
Title: Improvements in miners' electric battery lamps
IPC: F21V25/02
Filed: 1929-04-22
Abstract: 327,033. Davis & Son, Derby, Ltd., J., and Grafton, W. April 22, 1929. Battery lamps.-A device for short-circuiting the filament of the bulb c of a miner's lamp and for blowing a fuse i connected with the circuit thereof when the protecting glass casing b is broken comprises a push-rod a which is fitted at one end into a recess b<1> of the casing and depresses a spring-contact strip d. The central contact h of the bulb is connected through a metal piece o to a metal strip g, which is secured between fibre pieces k and is conected through the fuse i to a battery terminal. The screwed thread of the bulb is connected to the other battery terminal through the holder e.
Patent GB-992944-A (GB)
Title: Electroluminescent indicating apparatus
IPC: H01L31/14
Filed: 1961-04-06
Abstract: <PICT:0992944/C4-C5/1> An electroluminescent indicating apparatus comprises an input electroluminescent device E1 consisting of an electroluminescent layer sandwiched between crossed line electrodes x1...xn and y1...yn, and an output electroluminescent device E2 constructed as described in Specification 992,945.