baber/WOPTO huggingface dataset:
Patent GB-771945-A (GB)
Title: Improvements in or relating to transistor amplifiers
IPC: H03F3/21
Filed: 1955-05-20
Abstract: 771,945. Transistor amplifying circuits. GENERAL MOTORS CORPORATION. May 20, 1955 [June 14, 1954], No. 14614/55. Class 40(6) In a circuit with a tapped impedance 16 in the emitter lead, the input is applied between the base 8 and the tap 14 the output being taken from across the impedance. By varying the position of the tap 14 the amplifier may be arranged to operate between the common emitter and the common collector condition. The variation in gain, input, and distortion with variation in feed-back are given in Fig. 2 (not shown). The output load 20 may be a loud-speaker and the collector circuit is energized from a power supply P.
Patent GB-1432096-A (GB)
Title: Process for producing aromatic compounds
IPC: B01J23/89
Filed: 1974-04-02
Abstract: 1432096 Aromatization INSTITUT FRANCAIS DU PETROLE 2 April 1974 14675/74 Heading C5E [Also in Division B1] Aromatic hydrocarbons are produced by treating a feed stream containing saturated gasolines, and which is substantially free from ethylenically unsaturated compounds, with H 2  and a catalyst at 400-600‹ C., 1-60 kg./cm.<SP>2</SP> and 0À1-10 LHSV, the catalyst comprising (a) alumina, (b) 0À01-5 wt. per cent Pt, (c) 0À001-1 wt per cent Ir, Rh and/or Pd and (d) 0À0001-0À05 wt per cent Cu, Ag and/or Au, each with respect to the alumina. The catalyst may also contain 0À1-10 wt. per cent halogen, with respect to the alumina. The reaction may be carried out in one or more reaction zones containing fixed or fluidized beds.
Patent GB-239815-A (GB)
Title: Improvements in and relating to vehicle lamps
IPC: F21S13/00
Filed: 1925-06-06
Abstract: 239,815. Powell & Hanmer, Ltd., Hanmer, F., and Morris, H. J. June 6, 1925. Burners, mounting.-An acetylene burner u of a vehicle lamp is adjusted for focusing purposes by moving it in a slot in a reflector-holding plate e and a corresponding slot t in a recess c in the lamp body a in which the plate e is slidably mounted, the burner being secured in position by a tubular nut v adapted to receive the gas tube.
Patent GB-769773-A (GB)
Title: Improvements in the production of vinyl chloride from acetylene and hydrogen chloride
IPC: C07C17/08
Filed: 1955-05-24
Abstract: A process for the production of vinyl chloride from acetylene and hydrogen chloride in the gas phase consists in carrying out the reaction, if desired at increased pressure, at temperatures of from 20 DEG  to 150 DEG  C. in the presence of a catalyst consisting of a large-surfaced carrier and 10-30 per cent by weight of mercuric chloride, said catalyst having a grain size of 0.05 to 0.6 mm. and being kept in motion by gaseous initial materials led into the reaction chamber.  Advantageously the fluidized bed process is used but the method in which the catalyst is carried by the gases through the reaction chamber and the reaction product and catalyst are separated from each other outside the chamber may also be used.  In the fluidized bed method fresh catalyst may be added without interrupting the process.  Large-surfaced carriers referred to are active carbon and silicagel.  A number of reaction vessels, operating under different conditions and combined with each other, and which may be cooled externally as well as internally, may be used.  Excess pressures are preferably 2-7 atmospheres.  Unreacted initial material may be separated by reduced pressure distillation and recycled.  The reaction gas containing hydrogen chloride obtained by cracking dichlorethane may be reacted directly with acetylene according to the process of the invention.  Examples are given.
Patent GB-833787-A (GB)
Title: Improvements in joints and terminations of electric cables
Inventor: RITCHIE JAMES
IPC: H02G15/013
Filed: 1957-05-10
Abstract: 833,787. Cable end sleeves and joints; preventing excess of moisture. BRITISH INSULATED CALLENDERS CONSTRUCTION CO. Ltd. May 9, 1958 [May 10, 1957], No. 14955/57. Drawings to Specification. Classes 36 and 38 (1). A cable fitting, such as an end or joint sleeve, is sealed to the cable sheath by means of a poultice built up in situ without the use of a mould from synthetic resin in a plastic reactive condition and a wrapping of flexible reinforcing material, the resin being of the kind which adheres to both the sheath and the fitting and which sets without heating. The synthetic resin is preferably an epoxide resin blended with a polyamide and may contain powdered aluminium or other specified metallic or non- metallic fillers. For an oil or gas filled cable, the flexible reinforcing material is glass fibre tape and for other cables cotton tape is used. Specification 668,753 is referred to.
Patent GB-1076055-A (GB)
Title: Dimerisation of alpha, beta, olefinic nitriles
Inventor: NYMAN FRANK
Filed: 1965-04-08
Abstract: a ,b -Olefinic nitriles are dimerized in the presence of a tetrahydrocarbyl di-phosphine, or such a phosphine bearing incidental, inert substituents, as catalyst.  Reference has been directed by the Comptroller to the Specification 1,018,220.
Patent GB-714694-A (GB)
Title: Improvements in or relating to the ventilation of work-rooms and other places
IPC: F04F5/18
Filed: 1951-06-25
Abstract: 714,694. Injectors. DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG. June 25, 1951 [June 24, 1950], No. 15030/51. Drawings to Specification. Class 71. A compressed air actuated air injector for displacing air at the rate of Q units per unit time against a static pressure head H s  is so dimensioned that it operates at its maximum efficiency when displacing air at the rate of between Q and 0.62 Q per unit time at a static pressure delivery head between H s  and 2.6 H s .
Patent GB-577784-A (GB)
Title: Improvements in or connected with aircraft gun mountings
IPC: B64D7/02
Filed: 1938-05-20
Abstract: 577,784. Aircraft gun mountings and framework. SHORT BROS. (ROCHESTER & BEDFORD), Ltd., and McVIE, R. May 20, 1938, No. 15067. [Classes 92 (i) and 92 (ii)] [Also in Group XXXIII] An aircraft gun mounting is carried by a hinged section a of the aircraft body b which is normally flush with the body but can be lowered to provide an opening through which the gun or guns can be fired downwardly. The turntable g of the mounting is carried by a frame d which can be moved in a fore-and-aft direction along guides on the section by poweroperated screws when the mounting is to be withdrawn and the section closed. The section is provided with plates to close the sides of the aperture and is moved about its hinge a<1> by a power cylinder c. A superstructure p on the section carries the ammunition boxes p<2> and an electric motor p' for driving the hydraulic or like generator that supplies the whole of the power. The gunner who occupies a prone position and rests at the front on supports m, n, operates controls o to admit pressure to a press k<2> for elevating the guns by links k, k<2>, and to a similar press for moving the turntable on lateral guides f<1>, the turntable having an extension g<1> engaging a fore-and-aft guide f<5> to effect training. The gun sight l, mounted on the pivoted arm l<1>, is moved synchronously with the gun by links l<2>, l<4> and the arrangement is such that the focal point x of the sight remains near the gunner's head during gun elevation. The ammunition belts are fed to the gun through guides p4 and the empty cases and links leave the gun through conduits i<2>, i<3>.
Patent GB-939005-A (GB)
Title: Axle seal
IPC: F16J15/34
Filed: 1961-04-26
Abstract: 939,005. Stuffing-box substitutes. BOFORS A. B. April 26, 1961 [May 18, 1960], No. 15084/61. Class 122 (5). An axle seal comprises rotating and non- rotating seal elements 7, 8 which are made to bear against each other in a plane substantially at right angles to the axle by a spring 10 and an annular flexible collar 14 arranged coaxially in the axle and having an inside surface inclined towards a cylindrical surface 11 of the seal element 8 and urged against that surface by an annular spring 15. The seal serves to prevent water or dirt from reaching a roller bearing 2, 5 mounted on the stationary axle and carrying a wheel hub 4. The element 7 is fixed to a sealing ring 6 which is secured to and rotates with the hub 4. The element 8 is axially slidable on pins 9 carried by the cover 3 and is acted upon by a number of springs. Both elements are of tungsten carbide. A flap 16 is mounted over the collar 14 close to the surface 11 to prevent dirt from reaching the collar 14.
Patent GB-938602-A (GB)
Title: Improvements in or relating to liquid flow measurement
IPC: F16N13/02
Filed: 1961-04-26
Abstract: 938,602. Reciprocating pumps. HOUDAILLE INDUSTRIES Inc. April 26, 1961 [Nov. 14, 1960], No. 15102/61. Class 102(1). [Also in Group XXIX] In a lubricant pump a sight glass 40 is provided with visual means for measuring the rate of flow of lubricant without causing cessation of flow from the pump. The sight glass has chambers 41, 42 connected by a calibrated bore 43, lubricant being either drawn into or supplied under pressure to chamber 41 via a drip tube 51 and withdrawn from chamber 42 by a cam-actuated plunger 14. To measure the flow-rate lubricant is admitted to fill bore 43, the feed is then cut-off with valve 65, chamber 41 vented and the time taken by the pump to withdraw a known quantity from bore 43 noted. The feed to chamber 41 is then restored before chamber 42 empties. In a modification drip tube 51 enters through the cover 55 of the sight glass.
Patent GB-496572-A (GB)
Title: Improvements in or relating to power-operated garment presses
IPC: D06F71/06
Filed: 1937-06-01
Abstract: 496,572. Ironing presses. CHERRY TREE MACHINE CO., Ltd., and DOWELL, G. June 1, 1937, No. 15152. [Class 138 (ii)] Relates to a twohanded control for operating the spindle g<1> of the valve g admitting fluid-pressure through a pipe k to the press operating cylinder. One manual is in the form of a bell-crank lever a loosely mounted on a shaft c, one of the arms being provided with a T-shaped slot d, e in which a pin b projecting from a link g<2> engages. The link is connected to the valve spindle and another link c<2> connects it to an arm c<1> on the shaft c to which the other manual, not shown, is secured. If only the second manual is depressed, the pin b rises in the portion e of the T -slot; if only the manual a is depressed, the slot d travels over the pin h and in neither case is the valve spindle operated. For opening another press on depression of the manual a of the first press, there is provided a link i between the manual a and a lever i<1> operating the other press. A locking device for holding the spindle g<1> in open position comprises a bell-crank lever o connected to the link g<2> through a pin-and-slot connection and to a spring or piston and cylinder mechanism q. Specification 490,216 is referred to.
Patent GB-911415-A (GB)
Title: Improvements in solder wire
Inventor: SMITH DONALD PETER
IPC: B23K35/36
Filed: 1962-04-29
Abstract: A flux for forming an adherent, flexible, non-tacky coating on a solder wire consists of an activated polyamide resin or a mixture of a polyamide resin and natural gum or wood rosin in a weight ratio of 1 : 1 to 10 : 1.  The polyamide resin is the condensation product of a polyamine e.g. hexamethylene diamine, and a long chain dicarboxylic acid containing 14 to 22 carbon atoms.  The activator such as cyclohexylamine hydrobromide, diethyl hydrobromide or cetyl pyridinium bromide is present in an amount of 1%-4% by weight of the resin.
Patent GB-102053-A (GB)
Title: Improvements in or relating to Posts for Carrying Crossed Threads for the Supporting of Crop or other Plants.
Inventor: SOERENSEN NIELS GEORG
IPC: A01G17/14
Filed: 1916-10-26
Abstract: 102,053. S÷rensen, N. G. Nov. 2, 1915, [Convention date]. Plants, supporting.-Ropes, wires, &c., arranged in squares over a field for the purpose of supporting growing corn or similar crops, are supported by posts which are provided with openings of suitable shape to take the wires. The posts may have openings as shown in Fig. 2, in which slots 3 provide an entry to holes 4 for the wires 1 The slots 3 may be cut obliquely as shown in Fig. 3, to prevent the wires from being accidentally lifted vertically out of the holes. In the modification shown in Fig. 4, the one wire rests at the bottom of a straight slot, and the transverse wire rests in an inverted trefoil opening 4, which is provided with an entrance slot 3 which extends into the opening 4 through a mouth with flexible sides 5, the width of.this opening being normally narrower than the width of the wires.
Patent GB-563210-A (GB)
Title: Improvements in and relating to filters
IPC: B01D25/02
Filed: 1942-10-30
Abstract: 563,210. Filters. METAFILTRATION CO., Ltd., and PICKARD, J. A. Oct. 30, 1942, No. 15287. [Clase 46] In a filter in which a plurality of filter elements in the form of thin cells, formed of filter paper or textile fabric 20, 20a, is engaged with a drainage element extending through apertures in the opposite walls of the cells, each cell is provided internally with a thin annular imperforate smooth supporting plate 22 of sheet metal, cardboard or other relatively rigid material in contact with a single drainage washer 23, or slightly spaced from a pair of drainage washers 23a, and extending adjacent to the outer periphery of the cell. As shown, the washer 23 is formed with channels 24, Fig. 2, permitting flow of liquid from the cell. One of the washers 23a is also formed with channels 24 or other surface inequalities on the face in contact with the other plain washer.
Patent GB-1387715-A (GB)
Title: Process for producing cephalosporin derivatives
IPC: C25B3/25
Filed: 1972-04-04
Abstract: 1387715 3-Exomethylene cephalosporin derivatives TAKEDA YAKUHIN KOGYO KK 4 April 1972 [5 April 1971] 15299/72 Heading C2C [Also in Division C7] Cephalosporin compounds having a 3-exomethylene group, and especially cephalosporins of formula and salts and esters thereof, wherein R is hydrogen or an acyl group are prepared by electrolytically reducing a cephalosporin compound having a 3-substituted-methyl group. Suitable 3-substituted-methyl groups in the starting cephalosporins are acyloxymethyl, acylthiomethyl, quaternary ammonium-methyl, a group of formula -CH 2 SR<SP>1</SP> in which R<SP>1</SP> is an organic or inorganic group, or compounds wherein the 3-methyl substituent is linked to the 4-carboxyl group to form a 5-membered ring such as a γ-lactone, γ-thiolactone or γ-lactam ring. When R is an acyl group this may be any N-acylating group in a known cephalosporin or penicillin. The reduction is carried out in aqueous, organic or aqueous/organic solution, suitable organic solvents being methanol, ethanol, ethylene glycol, tetrahydrofuran, dioxan, acetonitrile, acetone, methyl ethyl ketone, dimethyl formamide and dimethyl sulphoxide. When an aqueous system is used a buffering salt is preferably added, to maintain the pH at about 2 to 7. When organic or aqueous/organic solution is used, an electrolyte such as Na 2 SO 4 , NaCl, KBr, LiCl, LiBr, chromium acetate, chloride or sulphate or a quaternary ammonium salt is usually added. Electrodes may be of any conventional material, such as mercury, zinc, lead, carbon, silver, platinum, nickel, palladium, tin, tungsten, aluminium or magnesium, and are preferably separated by a porous partition to prevent migration of the cephalosporin. A current density of 0À1 to 10 mA/cm.<SP>2</SP> is suitable in most cases. The 3-exomethylene cephalosporin may be subsequently isomerized to the corresponding 3-methyl-ceph-3-em compound, by adsorption on silica gel or alumina or by treatment with a tertiary amine. Isomerization is preferably carried out using an ester of the 3-exo-methylene compound. The 3-exomethylene or the 3- methyl compound may also be N-deacylated and/or N-acylated to provide antibiotically active-7-acylamino-3-methyl-cephalosporins.
Patent GB-814348-A (GB)
Title: Improvements in and relating to carbon contact bow collectors
IPC: B60L5/20
Filed: 1957-05-14
Abstract: 814,348. Current collectors. CONRADTY, E. K., CONRADTY, P., and CONRADTY, C. May 14, 1957 [May 22, 1956], No. 15335/57. Class 104 (3). A carbon contact bow collector without a metal mount comprises a metallic element b1, b2 between carbon contact strips a. The element may comprise a spring metal strip b1 or apertured spring metal strip b2 sprung into grooves e in the carbon strips. The metal strip may be curved or the element may comprise two metallic strips interconnected centrally by means of metal springs or resilient rubber sections. The carbon contact strips may be curved and interconnected by a metallic element having toothed or slotted edges. The grooves may be metallized or a metal fabric clamped therein. The carbon contact strips are mounted in a carrier d.
Patent GB-430056-A (GB)
Title: Improvements in and relating to dust pans
IPC: A47L13/52
Filed: 1935-01-30
Abstract: 430,056. Dustpans. LEIGH, A. W., 2, Cremorne Road, Chelsea, London. Jan. 30, 1935, No. 15356. [Class 19] A dustpan is provided with a keenedged rubber strip 2, Fig. 2, at the front. The rubber may be mounted in a movable metal strip 1 with a raised back to retain dust in the pan. The metal strip is held in place by springs or other fastenings, but can be detached or sprung out of place for emptying the pan. In a modification, Fig. 4, the rubber strip 1 is grooved for attachment to the pan.
Patent GB-110784-A (GB)
Title: Improvements in or relating to Crease-forming or like Machines for use in the Manufacture of Footwear.
IPC: A43D69/14
Filed: 1916-10-27
Abstract: 110,784. Bates, A., and British United Shoe Machinery Co. Oct. 27, 1916. Clogs, machines for ; welts, machines for; ornamenting.-A machine for crease-forming or other operations on the material in a crease is described in connexion with the manufacture of clogs, and comprises two inwardly bent crease-forming tools A arranged on either side of an adjustable lipended crease guide 25 and pivotally secured to two yoked levers 5, 7 pivoted at 6, 8 to a plunger 1, these levers and the shanks 9, 12 of the tools constituting a parallel linkage. The plunger 1 is reciprocated vertically at a high frequency by wellknown connexions with a main shaft 24, and is encircled by a compression spring 19 which bears on a loose collar 18 and normally holds the levers 5. 7 horizontal; the plunger is' free to rotate in its bearings 3, 4 to a limited extent to allow the tools to accommodate their position to the crease in the direction of the height of the clog. The machine is provided with a sole-support comprising a bell-crank lever, one arm 26 of which is covered with leather 27 or other material while the other is pivoted at 28 to a rod 29 threaded into a pivot 30 in the frame; turning the rod by means of its squared end 32 adjusts the support to different angular positions about its pivot. The action of the ons tool in advance of the crease guide forms the crease while that of the other tool finishes the operation, the tools adjusting themselves to the work, which may be fed in either direction. Each tool is provided with a bulged portion 16 which exercises a smoothing action on the upper just above the crease and prevents an undue blow being delivered on the upper at the bottom of the crease.
Patent GB-1215642-A (GB)
Title: A device for hoisting automobiles
IPC: E04H6/18
Filed: 1968-03-29
Abstract: 1,215,642. Garage lifts; mechanical garages. IZUMI KOGYO CO. Ltd. 29 March, 1968 [31 March, 1967], No. 15386/68. Headings B8E and B8H. The tracks 1 of a garage lift are raised by a hoist mechanism comprising winch drums 7 coupled to rollers 2 on the tracks, the rollers being driven by driven wheels of a vehicle supported on the tracks. Hoist cables or chains are secured to overhead anchorages and to the drums 7 and the tracks 1 are guided by rollers 10, 11 engaging guides 12, 13. When the tracks 1 are in the lowermost position, the driven vehicle wheels are supported on the rollers 2 and on rollers 3. When the tracks are raised, the rollers 3 are lowered and the vehicle wheels engage further rollers 4 which are inclined, as shown, to resist transverse movement of the vehicle. The rollers 2 are braked automatically, Figs. 4A, 4B (not shown), as the tracks reach their lowermost position. The lift may be employed for use in vehicle maintenance or for garaging vehicles, Fig. 5 (not shown).
Patent GB-881403-A (GB)
Title: Electric accumulator battery
IPC: H01M2/12
Filed: 1957-11-27
Abstract: 881,403. Batteries. MOLL, P. J. Nov. 27, 1957 [Nov. 27, 1956], No. 15390/61. Divided out of 881,402. Class 53. A storage battery with filler openings (especially as disclosed in Specification 881,402), has a gas manifold 8 venting press-on caps 6 which fit in the filler openings of the battery. By this means corrosion of the battery terminals &c. is reduced.
Patent GB-1262247-A (GB)
Title: Cap and actuator for aerosol dispensing containers
Inventor: BECK THEODORE A
IPC: B65D83/16
Filed: 1970-04-01
Abstract: 1,262,247. Pressurized dispensing containers. SCOVILL MFG CO. April 1, 1970 [April 1, 1969j, No. 15399/70. Heading F1R. An integrally moulded cap and valve actuator for an aerosol dispensing container comprises a cap having a planar top wall 18 and an annular wall 9, being adapted to seat on the rim 7 of the container. A slit 31 in the top and which extends downwardly into the annular wall defines a tongue 14 which lies flush with the top 18 and is depressable downwardly. The tongue has an actuater button 11 attached to its end centrally of the cap the button having a bore 12 adapted to engage the valve stem 8 of the container. The outlet 13 of the bore 12 is aligned with a hole 23 in the side wall of the cap. The valve is preferably tilt-operated. A reinforcement 17 may be provided for the tongue. The cap may be indented in the region of the hole 23.
Patent GB-1329645-A (GB)
Title: Driving and stopping mechanism in a sewing machine
IPC: D05B69/16
Filed: 1971-05-18
Abstract: 1329645 Sewing machines CSEPELI KEREKPAR-ES VARROGEPGYAR 18 May 1971 [20 May 1970] 15408/71 Heading D1G [Also in Division F2] A driving and stopping mechanism in a sewing machine, for successively providing a higher speed drive, a lower speed drive and stopping the machine, comprises two pulleys 2, 3 secured to the shaft of a motor 1 and coupled by belts to two pulleys 9, 5 disposed on and coupleable selectively to a driven shaft 4 by a dutch member 8 having a cam groove 15 with a cam surface on the right hand side and an abutment at the end which are engageable by a stop 11 to respectively first displace the clutch member 8 to the right to disconnect the slower drive and then to stop the driven shaft 4. The mechanism is controlled by a pivoted member 12 having an arm 14 with steps engageable by a lever 13, a slot engaged by one end of a bellcrank lever 10, the other end of which slides the pulley 9 axially on the shaft 4. The stop 11 is slidable in the member 12, a spring 16 being provided to absorb the shock of engagement of the stop with the abutment. In operation when the outermost step of the arm 14 is engaged by the lever 13, the shaft 4 is stopped. On pivoting the member 12 so that the lever 13 engages the middle step, the bellcrank 10 pivots to. permit the radial flange of the clutch part 8 to engage the part 6 of the pulley 5 to transmit the slower drive therethrough, the spring 7 providing the pressure on the friction faces. On pivoting the member 12 so that the lever 13 engages the innermost step the bellcrank 10 pushes the pulley 9 so that its friction surface engages the clutch part 8 to provide the faster drive, and to push the radial flange of the clutch part 8 from the part 6.