baber/WOPTO huggingface dataset:
Patent GB-578960-A (GB)
Title: Improvements in tracking arrangements for electrical circuits of variable resonance
IPC: H03H5/00
Filed: 1942-10-23
Abstract: 578,960. Wireless receiving apparatus. GENERAL ELECTRIC CO., Ltd., and BLOCH, A. Oct. 23, 1942, No. 14899. [Class 40 (v)] A tracking circuit arranged to be variably tuned so as to resonate at a frequency having a constant difference from the frequency of a variably tuned main circuit comprises a ganged inductance L and capacity C together with a fixed inductance Lp and fixed capacity Cp. The main circuit (not shown) comprises parallel connected inductance and capacity which are varied so that they are respectively equal to L and C at all times. If now L and C are varied such that L/C=R<2>, where R is a constant, and if Lp =R/2##0 and Cp =1/2##0R, the tracking circuit will resonate at a frequency which always differs from that of the main circuit by constant amount #0. Further, if image circuits of the above main and tracking circuits are formed by substituting for each inductance L a capacity of value K/L and for each capacity an inductance K/L, where K is a constant, then the image circuits can be gang tuned to give a constant difference of wavelength.
Patent GB-703717-A (GB)
Title: A method of providing fibrous materials, such as paper with a water-insoluble coating or film
IPC: D21H19/34
Filed: 1951-07-11
Abstract: 703,717. Coated paper. SVENSKA CELLULOSA AKTIEBOLAGET. July 11, 1951 [July 12, 1950], No. 14901/51. Classes 96 and 140 Carboxy methylcellulose, e.g. of a low degree of substitution (e.g. 0.12 to 0.30) is applied to the surface of paper &c., and a precipitant applied to lower the pH value and precipitate a salt of carboxymethyl cellulose as a waterinsoluble coating which may contain a filler or a pigment. The cellulosic salt may be precipitated by an acid, e.g. sulphuric, hydrochloric, or acetic or a salt, e.g. sodium bisulphite, or ammonium sulphate or chloride, and zinc, iron, or aluminium sulphate may be present.
Patent GB-715556-A (GB)
Title: Improvements in or relating to fluid bearings
Inventor: LOVE PHIL PRINCE
IPC: F16C32/06
Filed: 1952-06-13
Abstract: 715,556. Fluid bearings. GLACIER METAL CO., Ltd. May 22, 1953 [June 13, 1952], No. 14946/52. Class 12(1) A fluid bearing comprises a porous metal bush 1 and an external sleeve or housing 2 having circumferential grooves 3 which communicate with the porous structure of the bush 1 and also with an inlet 5 for the supply of air or other gaseous medium under pressure. The bush 1 is of sintered tincopper-bronze powder. In a modification, a sintered bronze bush 6, Fig. 4, is bonded to a steel backing 7 having a series of radial holes 8 extending from the bush 6 to communicate with circumferential grooves 9 in a sleeve or housing 10; the grooves 9 being in communication with a common inlet 11. The porous bush may be impregnated with, or have a surface coating of, a solid lubricant such as poly-tetra-fluoroethylene, molybdenum disulphide, tungsten disulphide, boron nitride or graphite.
Patent GB-221459-A (GB)
Title: Improvements relating to telephone systems
IPC: H04Q3/42
Filed: 1924-01-24
Abstract: 221,459. Siemens Bros. & Co., Ltd., Berry, J., and Peters, C. L. Jan. 24, 1924. Drawings to Specification. Automatic exchange systems; metering.-In an exchange network in which the first letters of the name of the wanted exchange are dialled to a register-controller which translates them into a routing number, the counting switch which effects the sending of the trains of impulses comprising the routing number also effects the sending of a train of impulses to a meter control switch. When the called party replies, the meter control switch, which is associated with the first selector, is further advanced to a prescribed position and the meter is operated a number of times depending upon the extent of this last stepping movement. The invention is shown as applied to a system which is identical with that described in Specification 217,981. Specification 203,759 also is referred to.
Patent GB-1494382-A (GB)
Title: Hydraulic press for the non-cutting shaping of the ends of elongate metallic workpieces
IPC: B21D53/90
Filed: 1975-04-11
Abstract: 1494382 Pipe end closing; drawing; tube expanding E RIBBACK 11 April 1975 [13 April 1974] 15015/75 Headings B3H B3P and B3J  An hydraulic press for operating simultaneously on both ends of a rod or tube 4 comprises a pair of clamping jaws 9, 9a and a pair of hydraulic rams 2, 3, 2a, 3a, each with a working tool 5, 5a. The tools may be drawing-in dies, Fig. 2, or widening-out mandrels. Several such tools may be mounted on a turret 6, 6a on the piston-rod of each ram to enable successive operations without unclamping the workpiece. The workpieces are supplied successively along a roller table or by a belt conveyer 10. The workpiece may be formed into a vehicle axle casing and the clamping jaws may have projections to engage the "banjo". The drawing-in dies, Fig. 2, have ribs 13 to crease the tube and a tapered end zone 14 to shape the creased tube end.
Patent GB-217931-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B1/00
Filed: 1924-06-23
Abstract: 217,931. Kucsera, M. June 22, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Regulating. - The engine shown in Fig. 1, when working with super-compression, exhausts through the port b<1> and valve m, and at the same time receives air from the crank chamber through the valve g and passage k. The residual products are expelled through a valve t in the cylinder head on the up-stroke, and on the next down-stroke, a new charge is drawn in through another valve in the cylinder head or through a common water-cooled rotary admission and exhaust valve; at the end of the suction stroke a second air-charge enters the cylinder from the crank case, the valve m remaining closed, the double charge being compressed on the next up-stroke. By fixing the valve g so that the crank chamber is always open to the atmosphere through the pipe z, and by keeping the valve m closed, the engine will work on a four-stroke cycle without super-compression and scavenging, and by doing away with the admission valve in the cylinder head and providing two valve-controlled transfer passages from the crank chamber, one of which is fed with fuel, the engine will work with super-compression. To work the engine on a twostroke cycle, the valves in the cylinder head are kept closed and the valve m open, liquid fuel in this case being drawn into the transfer pipe k by the rush of air past a nozzle h ; a a non-return valve j is provided. The valves m, t of this engine can be worked by an eccentric l.
Patent GB-1068006-A (GB)
Title: Butyl rubber compositions
IPC: C08K5/39
Filed: 1966-04-05
Abstract: A butyl rubber composition consists essentially of an unvulcanized isobutylene-isoprene copolymer, consisting of 95 to 99 mole per cent isobutylene and 1 to 5 mole per cent isoprene, and 0.02 to 0.5 weight per cent of zinc dimethyldithiocarbamate. The composition is stabilized against oxidation and is utilized in the final drying step in the preparation of butyl rubber.
Patent GB-107148-A (GB)
Title: An Improved Cigar.
Inventor: HUGHES THOMAS HOLLINS
IPC: A24D1/00
Filed: 1916-10-25
Abstract: 107,148. Hughes, T. H. Oct. 25, 1916. Cigars; cigarettes.-The stems of tobacco leaves are removed, the leaves are cut into shreds and a wrapping of tobacco leaf is used to enclose the cut tobacco. Specification 3972/90 is referred to.
Patent GB-515023-A (GB)
Title: Improvements relating to railway point and signal lever mechanism and the like
IPC: B61L19/14
Filed: 1938-05-21
Abstract: 515,023. Railway signalling apparatus. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., KERSHAW, A. G., and KERSHAW, N. G. May 21, 1938, No. 15192. [Class 105] A railway points or signal lever actuates a circuit controller from a slide bar not directly but through a multiplying gear. As shown the points or signal lever actuates a slide-bar c which has a cam slot i shaped at the ends j, k to give initial rapid movement to a pin depending from a pivoted arm a this arm having a toothed. segment d engaging with a small diameter gear segment f on the shaft g of the circuit controller.
Patent GB-612224-A (GB)
Title: Improvements in or relating to two-stroke compression ignition engines of small capacity
IPC: F02B1/12
Filed: 1946-05-20
Abstract: 612,224. Two-stroke engines. HARDINGE, A. L. May 20, 1946, No. 15204. [Class 7 (ii)] A small capacity compression - ignition engine has a carburetted mixture drawn into the crankcase through a port 23, compressed on the down-stroke of the piston and admitted to the combustion chamber opposite a piston deflector 19 by at least two ports 18, which are so directed that the two streams of mixture impinge in the combustion chamber and so improve atomisation. The cylinder 9 is connected to the crank-case by a flange 10 and bolts 11 and compression ratio adjustment is facilitated by a bolt 21 and contra-piston 20.
Patent GB-203039-A (GB)
Title: Improvements in percussive rock drilling tools with renewable cutters
IPC: E21B10/58
Filed: 1922-05-30
Abstract: 203,039. Swanton, F. V. W. May 30, 1922. Percussive drills.-A detachable threecornered bit 5<a> is held in a split socket 27 screwed into the end of the drill bar. A flat-ended guide-member 22 also fits into the holder and is held in place by a recess 24 through which the bit passes. In place of the member 22 two short bits may be used, one on each side of the bit 5a, making a cruciform cutter. The section of the bit is an equilateral triangle with the corners bevelled to 90‹.
Patent GB-350689-A (GB)
Title: Improvements in and relating to machines for mixing liquid, semi-liquid or viscid materials
IPC: B01F7/04
Filed: 1930-05-17
Abstract: 350,689. Mixing-machines for semi-liquids &c. SONSTHAGEN, A., 10, Broad Walk, Snares brook, London. May 17, 1930, No. 15227. [Class 86.] In a machine for mixing semifluid materials comprising a horizontal shaft working in a cylindrical container and fitted with vanes the inclination of which is such that the material moves backwards and forwards as it progresses through the machine, the container is fitted with a removable end cover so that the shaft &c. is readily removable. In the form shown, vanes 13 of opposite inclination are mounted on collars 12 splined to a non-rotary shaft 6 having a bearing in the removable end cover 3. A driven shaft 6a, coaxial with the shaft 6, has splined thereto a disc 9 between which and a second disc 9a, freely mounted on the shaft 6, are helical bars 10 fitted with blades 11. Alternatively the shaft 6 may rotate and the bars 10 and blades 11 be held stationary. Specification 134,451, [Class 86, Mixing &c.], is referred to.
Patent GB-638049-A (GB)
Title: Improvements relating to liquid fuel injection nozzles for internal combustion engines
IPC: F02M61/04
Filed: 1948-06-07
Abstract: 638,049. Fuel injectors. C. A. V., Ltd., EVANS, F. M., and NAYLOR, L. T. June 7, 1948, No. 15284. [Class 7 (iii)] In a fuel-injection nozzle comprising an injection valve k loaded by a spring- loaded plunger h a bush j of hard metal such as hardened steel or tungsten carbide forms the stop limiting the opening of the valve k and also forms a guide for the end m of the plunger h. The part m is provided with a rounded end for contacting the flat end of the part n of the valve k, or vice versa.
Patent GB-549728-A (GB)
Title: Improvements in and relating to bases for electric lamps
IPC: H01K1/46
Filed: 1941-11-28
Abstract: 549,728. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Nov. 28, 1941, No. 15337. [Class 39 (ii)] A lamp of the projection type such as is described in Specifications 515,091 and 526,924 has the external convex surface of its glass reflector 13 formed with two glass bosses 19 through which the lead-in wires 16, 17 extend; the insulating cap is shaped to fit round these bosses and is anchored in place by the lead-in wires which are soldered to the terminal plates 32 in a stretched condition so that no basing cement is needed. Specification 471,301, [Group XXXVI], also is referred to.
Patent GB-946331-A (GB)
Title: A process of imparting stress to steel bars in reinforced concrete
Inventor: KURODA TOSHINORI
IPC: E04C5/08
Filed: 1961-04-28
Abstract: 946,331. Prestressed concrete. DIRECTOR, OF KOGYOGIJUTSUIN. April 28, 1961, No. 15510/61. Drawings to Specification. Heading E1V. A process for producing a prestressed reinforced concrete member, characterized in that a reinforcement of steel of a martensite structure is consolidated in a concrete member and the temperature of the reinforcement is increased, e.g. by passing an electric current through the reinforcement, to change the metal structure thereof and is then cooled so as to cause a compressive stress in the concrete.
Patent GB-1383191-A (GB)
Title: Lapping tape for insulating electrical machinery
IPC: H01B3/40
Filed: 1972-04-05
Abstract: 1383191 Mica paper laminates SCHWEIZERISCHE ISOLA-WERKE 5 April 1972 [8 April 1971] 15698/72 Heading B5N [Also in Division H1] Tapping tapes for insulating electrical conductors comprise a porous substrate, e.g. glass silk fabric or glass or synthetic fibre felt, bonded to mica paper by an adhesive as defined below which also acts as an accelerator for resincuring agent systems such as epoxy resins which are subsequently added to the lappings. The adhesive is prepared by quantitative reaction of the ethylene oxide groups of an epoxy resin, having a softening point (ASTM E 28), above 50 C. and containing at least two ethylene oxide groups, with a secondary amine NHR<SP>1</SP>R<SP>2</SP> to produce groups of formula where R<SP>1</SP>, R<SP>2</SP> are straight-chain C 1 -C 4  alkyl groups, or together constitute an alkylene group which may be interrupted by a heteroatom. The adhesive is applied to the substrate in solution form; only the minimum a mount necessary should be used. Following adhesion the product is cut into strip or tape form. The adhesive may be produced by reacting an epoxy novolak, bisphenol-A diglycidyl etherbased epoxy resin or a heterocyclic ring- containing epoxy resin with dimethylamine, diethylamine, di-n-propylamine, pyrrolidine, piperidine, morpholine or thiomorpholine.
Patent GB-1476172-A (GB)
Title: Spooling arrangements for endless band material
Inventor: ROBERTSON PENROSE DAVID
IPC: E06B9/32
Filed: 1974-04-09
Abstract: 1476172 Spooling films WESTREX CO Ltd 9 April 1975 [9 April 1974 22 May 1974] 15723/74 and 22916/74 Heading G2E [Also in Division B8] An endless band of material such as cinematograph film passing through a projector is arranged so that it winds off one spool on to another, and then back again. The endless band 1, which may be several hundred feet long, is looped at one end round a pin 3 on a spool 2, Fig. 1, the spool then being rotated anti-clockwise so that the film winds thereon in two spirals 11, 12. Eventually all the film is wound on to the spool, and the other end 5 of the film is reached, Fig. 2. The loop 5 is laced into a projector 6, and the spool 2 rotated clockwise, so that the film passes into the projector in direction B and leaves it in direction C, Fig. 3. Since spool 2 is rotating clockwise, a loop 7 is formed in the film, Fig. 4, and this loop is attached to a second spool 8, Fig. 5. Thus as spool 2 rotates clockwise and spool 8 anti-clockwise, the entire film supply winds off spool 2 on to spool 8, one of the film spirals passing through the projector en route, and the other spiral passing directly from one spool to the other. When this position is reached Figs. 6 and 7, (not shown), another loop is formed which is attached to spool 2, and the process reversed, so that the film is wound back on to spool 2 again. Figs. 10 and 14 show a practical embodiment, in which the spools 2 and 8 of Figs. 1 and 5 are replaced by double large-diameter film spools, comprising a lower pair of double spools 2 and 8 and an upper pair 2', 8'. Thus two completely separate endless film strips can be accommodated, one on the lower spools and the other on the upper spools. A swing assembly 20 comprising swing arms 42, 43, 44, seen more clearly in Figs. 12 and 13 (not shown), is associated with the lower set of spools, a similar assembly being associated with the upper set of spools. Each swing arm carries a pair of pulleys 49, 50, and 55, 56, and 59, 60, the arms being mounted on bearings in a pair of parallel face plates such as 45. The pulleys act as film guides during the sequence of operations set out in Figs. (not shown) 20-29. The arms of the swing assembly 20 can move in a linked manner, by means of a common drive belt (63), Fig. 13 (not shown), and a pick-up arm 90 can pivot on a spindle 92 secured between adjacent plates 81, 82 of the double spools 2. The swing assembly and pick-up arm provide a mechanical arrangement whereby the reversal process, when the film loop has been completely unwound from one set of spools, is effected automatically.
Patent GB-291358-A (GB)
IPC: B60G9/00
Filed: 1928-05-30
Abstract: 291,358. Naamlooze Vennootschap Mij. tot Beheer en Exploit. van Octrooien. May 30, 1927, [Convention date]. Charges, conveying.-In conveyers for transporting glass sheets through leers, the glass rests on rollers which are supported at points intermediate their ends. In one form the conveyer comprises a series of rollers b, Fig. 1, supported by rollers c mounted in standards d or resting on another series of rollers. In another form the glass rests on a series of rollers b, Fig. 3, supported at each end by the links h of endless chains and at intermediate points by a series of parallel rails a.
Patent GB-331649-A (GB)
Title: An improved method of rust prevention in kettles made of tin-plate
IPC: F28F19/02
Filed: 1929-05-22
Abstract: 331,649. Simpson, W. M. May 22, 1929. Corrosion, preventing.-Corrosion in kettles of tin-plate is prevented by soldering a strip, of zinc p, or two crossed strips, to the base b of the kettle. The strip is pierced with a hole h to facilitate the flow of solder. Specification 16684/90, [Class 66, Hollow-ware], is referred to.
Patent GB-602097-A (GB)
Title: Improvements relating to the refining of hydrocarbons
IPC: C10G49/00
Filed: 1944-08-18
Abstract: Hydrocarbon feedstocks are desulphurised or hydrofined without cracking under conditions of elevated temperature and pressure in the presence of hydrogen and a desulphurizing catalyst, by recycling the hydrogen without the removal of its hydrogen sulphide content, the conditions being such that the latter does not build up to an extent to have an effect on the reaction, and thereafter passing the treated feedstock to a second gas separation stage for the removal of the remainder of the hydrogen and the bulk of the hydrogen sulphide.  The recycled hydrogen also contains methane and a small proportion of other hydrocarbon gases.  By controlling the conditions, the H2S concentration in the hydrogen is not found to build-up and is preferably maintained not substantially in excess of 2 per cent. The excess H2S dissolves in the hydrocarbon product together with a certain amount of hydrogen and some of the lighter hydrocarbon gases. These light ends are removed from the liquid product preferably in a flash column by the application of heat or reduction of pressure or both.  The H2S may be recovered from the light ends, such as by water scrubbing and then passing air through the H2S-rich water.  The H2S-free light ends may contain sufficient hydrogen for recycling or the gas may be otherwise disposed of.  In an example, gas oil is treated, using a catalyst comprising molybdenum trioxide on alumina. Of suitable catalysts the following are given as typical: the oxides and sulphides of Al, Fe, Ni, Co, Cr, Mo, Cu, Mn and W, metals such as Na, K, Li, Ca, Zn, Al, Mn, Fe, Ni, Co, or Cu, and compounds such as molybdates, thiomolybdates, thiotungstates, and aluminates of metals of the 6th group, either alone or in combination with other catalysts.
Patent GB-1416938-A (GB)
Title: Tunnelling machines
IPC: E21D9/087
Filed: 1973-04-03
Abstract: 1416938 Tunnelling machines EDMUND NUTTALL LTD 20 Feb 1974 15849/73 Addition to 1233132 Heading E1F A modification of the steerable, shielded tunnelling machine of the referred to Specification 1233132 in which a rooking pad is rigidly secured to the forward underside of the shield of the machine to allow of positive steering of the shield when presser members on the shield engage the walls of a tunnel being formed by the machine to rock or pivot the sheild about the pad, the modification being that part of the rocking pad is now adjustably mounted on the shield. The pad or part thereof is preferably adjustable in a direction radially of the shield, may be mounted for this purpose on an hydraulically adjustable shoe, and may be associated with mechanical means that will hold it in a chosen position relative to the shoe.
Patent GB-195893-A (GB)
Title: Improvements in production of wheels
IPC: B60B21/06
Filed: 1922-06-07
Abstract: 195,893. Ellis, G. B., (Baush Machine Tool Co.). June 7, 1922. Drawings to Specification. Compression-spoke wheels; disc wheels.- The supporting portion between the hub and the rim is made of an aluminium alloy consisting of aluminium 94 per cent, magnesium 0.5 per cent, and chromium, manganese and copper in varying proportions. The alloy is cast into ingots, forged to shape, heated to 500‹-525‹ C., quenched and then aged for from one to five days. The machining may be done before the ageing is complete.
Patent GB-560480-A (GB)
Title: Improvements in and relating to the construction of aircraft control surfaces
IPC: B64C9/00
Filed: 1942-11-11
Abstract: 560,480. Aircraft control surfaces. BLACKBURN AIRCRAFT, Ltd., and PETTY, G. E. Nov. 11, 1942, No. 15929. [Class 4] Control surfaces for aircraft have the nose portion of the skin made of heavy gauge material, particularly metal, and secured to continuous ribs, the construction being such that the nose portion of the skin substantially balances the mass rearwardly of the pivotal axis of the surface and is strong enough to transmit torsional and other loads. In the aileron shown, the nose portion 1 of the skin, of heavy gauge material, is secured to a number of ribs 4 which extend rearwardly from the edges of the portion 1 and have depressions 5 to receive those edges. Ledges 2 are provided for the edges of the rear part 3 of the skin. The end rib 4<1> nests in the curvature of the portion 1 and there is preferably at least one other rib 4<2> of similar shape adjacent each end, which supports the end of the pivot housing 6. Rudders and elevators are also mentioned.
Patent GB-361885-A (GB)
Title: Containers with replaceable closures
IPC: B65D41/04
Filed: 1930-05-23
Abstract: 361,885. Closures for bottles. BRITISH DARDELET THREADLOCK (D.D.G.) CORPORATION, Ltd., 42, Kingsway, London.-(Assignees of Soc. Franþaise de Filetage Indesserrable D.D.G.; 37, Boulevard Haussmann, Paris.) May 23, 1930, No. 15941. Convention date, May 30, 1929. Void [Published under Sect. 91 of the Acts]. [Class 125 (iii).] The capsule 11 of a bottle 10 is frictionally locked thereto on relative rotation of the capsule for a fraction of a revolution. The interengaging surfaces are archimedean spirals united by a short plane 15 and are rotatably staggered around a common axis. The coacting surfaces are described as screw threads, the angle of which is within the coefficient of friction of the materials of the cap and bottle. Specification 241,211 is referred to.