baber/WOPTO huggingface dataset:
Patent GB-148935-A (GB)
Title: Improvements in headlights for automobiles
IPC: F21S8/12
Filed: 1920-07-10
Abstract: 148,935. Brown, H. W., and Alvo Co. March 25, 1918, [Convention date]. Supporting.-A casing 3<a> containing an auxiliary lamp bulb and reflector is connected to the main casing of a vehicular lamp by a strap 53 encircling the main casing and connected to one side of the casing 3<a> by screws and a flanged strip 57 and at the other side by a pin 55 engaging .one of a series of holes 54 in the end of the strap, a clip 56 preventing accidental detachment of the strap from the pin. In addition, a piece 61 having fingers 62 for engaging the front of the main casing is attached to the casing 3a by pins engaging holes in the piece 61 so as to prevent rearward movement of the casing 3<a>, and a hook engaging the chain casing and attached by pins and a perforation to the top of the strap is employed to prevent rearward movement of the strap. A limited tilting movement of the casing 3<a> is effected by a set-screw fitting a bracket on .the casing 3<a> and bearing against the main casing.
Patent GB-905267-A (GB)
Title: Synchronous motor control
IPC: H02H7/08
Filed: 1960-06-14
Abstract: 905,267. Control of D.C. motors. WESTINGHOUSE ELECTRIC CORPORATION. June 14, 1960 [June 19, 1959], No. 20791/60. Class 38 (3). [Also in Group XL (c)] The starting circuit of a synchronous motor 2 having a field winding 4 includes a normally open damper winding protection relay contact 26 which closes, when A.C. power is applied to the motor, in response to a signal input 35 supplied to a flip-flop element 29 which energizes the operating coil 60 of the contact 26; should the motor get out of synchronism, an output pulse I, at terminal 348 from a damper winding protection circuit turns the element 29 " off," opening the coil 60 and shutting down the motor 2. As shown, the damper winding protection circuit comprises an input circuit 50 which provides signals responsive to the induced alternating current in the field winding 4, a pulse forming circuit 52 which converts the signals from circuit 50 into sharp negative trigger pulses D, a pulse generating circuit 54 which converts the pulses D into square pulses having a constant width for every trigger pulse, an amplifier and thermistor circuit 56 receiving the square pulses which heat the thermistor 230, and a sensing circuit 58 which senses the change in thermistor resistance after the occurrence of a predetermined number of pulses and provides the output signal I. The thermister 230 has a positive temperature coefficient and has thermal characteristics similar to the damper winding. Should the motor begin to run subsynchronously, the slip frequency, and therefore the number of current pulses through the thermistor 230, increases whereby the thermistor is heated at a rate determined by the slip frequency; at a certain temperature determined by its characteristics the resistance of the thermistor increases sharply; a relatively large negative voltage is thereby applied to a transistor 300 in the circuit 58, causing the transistor to conduct; this allows a positive potential through a resistor 340 to cut off a transistor 330 so that the negative bias on collector 334 appears at the output terminal 348. The magnitude of the current flowing through the thermistor 230 may be adjusted by a potentiometer 226 so that the time delay necessary to trip the motor may be varied.
Patent GB-1204236-A (GB)
Title: Stabilization of relatively saturated polymers with phenolic stabilizers and sulfur-containing compounds
IPC: C08L25/04
Filed: 1968-05-02
Abstract: 1,204,236. Stabilized polymers. GOODYEAR TIRE & RUBBER CO. 2 May, 1968 [2 June, 1967], No. 20804/68. Heading C3P. A polymer of an α-olefin of 2-8 carbon atoms, a polystyrene or modified polystyrene is stabilized by the following additive: (A) a product formed by reacting dicyclopentadiene with a phenol such as phenol, o-, p-, mixed m-, pcresol or p-ethyl phenol and then alkylating this phenolic compound with a tertiary olefin such as isobutylene, tertiary amylenes or tertiary hexylenes, and (B) a sulfur containing compound of formula wherein R is hydrogen, an alkyl radical of 1-20 carbon atoms, a cycloalkyl radical of 5-8 carbon atoms, an aryl or alkaryl radical containing 6 to 24 carbon atoms or a radical of the formula wherein R<SP>11</SP> and R<SP>1111</SP> are hydrogen, an alkyl radical of 1-20 carbon atoms, a cycloalkyl radical of 5-8 carbon atoms, or an aryl radical of 6-24 carbon atoms, R<SP>1</SP> and R<SP>111</SP> are hydrogen, alkyl radicals of 1-20 carbon atoms, a cycloalkyl radical of 5-8 carbon atoms, an aryl radical of 6 to 24 carbon atoms, an alkoxy radical of 1 to 20 carbon atoms, a cyclo alkoxy radical of 5 to 8 carbon atoms or an aryloxy radical of 6 to 24 carbon atoms and wherein 12 is a whole number less than 3, or R is C 2 H 5 , R<SP>11</SP> is a hydrogen atom, R<SP>1</SP> is a hydroxy group and n is 1. Material (A) may be prepared by (1) reacting in the presence of a Friedel Crafts catalyst one mol of dicyclopentadiene and at least one mol of the phenolic material and (2) further reacting the first reaction product with at least one half mol of the tertiary olefin in the presence of an acidic alkylation catalyst. In the examples, a butylated reaction product of p - cresol and dicyclopentadiene is prepared, and together with dilaurylthiodipropionate, mixed with a polypropylene. The stabilizing qualities of the additives is demonstrated by measurement of yield-tensile and melt indices.
Patent GB-531304-A (GB)
Title: Process and apparatus for applying revenue duty labels or the like to the narrow sides of packages by means of adhesive
IPC: B65C1/04
Filed: 1939-07-18
Abstract: 531,304. Labelling machines. MULLER, J. C. July 18, 1939, No. 20833. Convention date, Aug. 9, 1938. [Class 73] A machine for applying a revenue strip to one end and two or more sides of a package comprises a track along which the packages are fed, means being provided for placing a strip across the path, the strip being fed from a pile by an adhesive separator. The separator comprises a projection c engaging in turn a gumming roller and the bottom strip of an oscillatory pile a. The strip is taken by grippers e which place it in the path of the packages g fed by abutments n; the labelled packages are pushed into a rack k, the rear end of the last package forming a supporting surface for the strip to be applied to the following package. The ends of the label are affixed by brushes at the sides of the track and reciprocating folders may affix the ends on the rear face.
Patent GB-230721-A (GB)
IPC: G01N3/18
Filed: 1924-09-04
Abstract: 230,721. Thyssen & Co., Akt.-Ges. April 15, 1924, [Convention date]. Addition to 197,330. Annealing and tempering. - Iron and steel articles wihich are subjected during manufacture to the action of a severe testing load and afterwards annealed to eliminate the effects of the strain, as described in the parent Specification, are maintained during testing at the temperature, expected to prevail during normal working of the article. In the case of a boiler or closed container, the pressure fluid may also act as a heating-medium to which heat may be imparted by an electric resistance located within the container; the expansion of the heating-medium may be utilized to exert the testing pressure and thereby render the use of a pump unnecessary. In order to avoid undue pressure, a relief valve may be. actuated by the movement of the walls of the boiler during the strain. For example an outlet valve c from the boiler a carries a lever d one end of which is normally attracted by an electromagnet h so as to close the valve. During expansion of the boiler, a contact l, n is broken., and a weight e at the other end of the lever opens the valve.
Patent GB-1216747-A (GB)
Title: Coating product and process
IPC: D21H19/58
Filed: 1968-05-02
Abstract: 1,216,747. Coated paper. POLYMER CORP Ltd. 2 May, 1968 [3 May, 1967], No. 20904/ 68. Heading B2E. [Also in Division C3] An aqueous composition suitable for coating paper comprises (1) a pigment material of which calcium suiphoaluminate (satin white) forms 5-70% by weight (2) a latex of a rubbery polymer, and (3) 0.5-5% by weight of the calcium sulphoaluminate of an alkali-soluble copolymer of a styrene monomer with maleic acid, maleic anhydride, or half esters of maleic acid and C 1-18  monohydric alcohols, said oonolymer having a weight average molecular weight of 1000-20,000. The exemplified polymers (2) are styrene-butadiene-acrylic acid copolymer, vinyl acetate-butyl acrylate copolymer, and styrene-butyl acrylate copolymer. The composition may also contain other pigments such as clay and barium sulphate and dispersants such as sodium hexametaphosphate.
Patent GB-831040-A (GB)
Title: Projectile
IPC: F42B12/10
Filed: 1958-06-30
Abstract: 831,040. Storing self-propelled projectiles. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWEN D U N G E N ENERGA. June 30, 1958 [July 11, 1957], No. 20938/58. Classes 9(1) and 9(2) A hollow charge self-propelled projectile, similar to that described in Specification 722,646, is rendered safe during storage and transport by housing the detonator 10 in a capsule 14 which is integral with a packing ring 13 clamped between the warhead and the propellant chamber To prepare the projectile for firing the head 3 is unscrewed, the ring 13 removed, and the detonator inserted in a housing 9 in the base of the hollow charge, where it is supported by a cushion 11 of elastic material, e.g. rubber. A packing ring 12 seals the housing 9. The packing 13 and capsule 14 are preferably of a synthetic plastic material such as a vinyl resin.
Patent GB-732715-A (GB)
Title: Apparatus for wiping footwear of pedestrians
IPC: A47L23/26
Filed: 1952-08-21
Abstract: 732,715. Cleaning boots and shoes. LEEDAM, C. Aug. 25, 1952 [Aug. 21, 1952], No. 20974/52. Class 138 (1). Apparatus for wiping footwear of pedestrians comprises a rotary cleaning brush 25 rotatably supported on a horizontal axis, either in a casing 24, Fig. 1, having an open top, or between spaced wall brackets 31, Fig. 2, the top of the casing 24 or the tops of the brackets 31 being upwardly inclined to a horizontal plane from the front to rear thereof, and a correspondingly inclined trend grid 12, Fig. 1, or 32, Fig. 2, arranged in the said open top or between the tops of the brackets, with the tips of the bristles of the brush 25 projecting through the grid 12 or 32. In the embodiment of Fig. 1 the brush is driven from an electric motor housed in a cover 26 through gearing 27 both mounted on the casing, which is also provided with a hand rail 28. In the embodiment of Fig. 2, a downwardly inclined grid 33 between the brackets 31 is provided below the brush 25 and a hand rail 28 is also mounted on the brackets. The tops of boots or shoes may be cleaned in this case by inserting the foot in a recess 34.
Patent GB-1102398-A (GB)
Title: Planographic printing plates
IPC: B41N1/14
Filed: 1966-05-12
Abstract: 1,102,398. Printing plates. A. L. ENSINK. 12 May, 1966, No. 21040/66. Heading B6C. [Also in Division G2] A planographic printing plate comprises a flexible support-paper, metal, plastics-having on at least one face thereof a hydrophilic seal and barrier coating which was applied as an aqueous dispersion which leaves a solids residue consisting essentially of insolubilized alginate, colloidal silica and inert mineral pigment. A planographic printing surface is applied over the seal and barrier coating. In the described example paper is coated on one face with a composition of sodium alginate solution, kaolin clay slurry, colloidal silica dispersion and dimethylol urea. The uncoated face is subsequently covered with a backing coating of kaolin clay. sodium tripolyphosphate, casein and latex in water. The barrier coating is then covered with a printing surface of sodium tripolyphosphate, sodium alginate, kaolin clay slip and ammonia in water. A defoamer (tributyl phosphate or butanol) and a wetting agent may be incorporated. Finally a wash coat of polyvalent salts is applied to the printing surface.
Patent GB-642742-A (GB)
Title: Improvements in luminescent materials
IPC: C09K11/02
Filed: 1947-08-05
Abstract: 642,742. Luminescent materials. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 5, 1947, No. 21278. Convention date, June 29, 1946. [Class 39 (i)] Antimony oxide Sb 2 O 3  is added to the suspension of a luminescent material for coating discharge lamps, e.g. zinc silicate, zinc beryllium silicate and/or magnesium tungstate. The suspension comprises the luminescent material, a solvent, e.g. amyl or butyl acetate, xylol, toluol or normal heptane. a lacquer, e.g. nitrocellulose or ethyl cellulose and a plasticizer, e.g. di-methyl-phthalate. The proportion of Sb 2 O 3  should be between 5 and 0.005 per cent of the weight of dry luminescent material.
Patent GB-632287-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D25/24
Filed: 1944-11-01
Abstract: 632,287. Bearings. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 1, 1944, No. 21363. Convention date, Nov. 1, 1943. [Class 12 (i)] [Also in Group XXVI] A bearing 27, Fig. 1, located between the high and low pressure turbines 10, 11, has an inner casing or bearing-member 28 supported on an outer bearing casing 29 which forms with the extension 36 of the low pressure turbine casing an annular channel for conducting the working fluid from the high pressure to the low pressure turbine. The chamber between the inner and outer bearing casings 28, 29 is sealed by annular flexible rings 33 and may be supplied with cooling air or other medium through pipes 34, 35. The outer bearing casing 29 is loosely supported and guided in the extension 36, Fig. 3, to permit relative movement by arms 37 held in recesses 38 formed in webs 39. It is located in the vertical plane by projections 40 associated with projections 41 on the casing. Specification 20466/05, [Class 12], is referred to.
Patent GB-1094675-A (GB)
Title: Feeding device for continuously operating centrifugal dryers
IPC: B04B11/02
Filed: 1966-05-13
Abstract: 1,094,675. Centrifugal strainer. SOCIETE FIVES LILLE-CAIL. May 13, 1966 [May 18, 1965], No. 21369/66. Heading B1D. A centrifugal strainer comprises a conical drum 1, 19 rotating about a vertical axis into which viscous massecuite is delivered by annular nozzle 13, a guide tube 8 extending through nozzle 13 to the bottom of the drum and means 10, 11, 12 delivering solvent to run down the outside of tube 8 to assist the flow. The solvent and diluted massecuite pass into a bowl 14, up and through its coarse perforated wall 15 for uniform distribution over sieve 19 which lines drum 1. Hot solvent vapour is simultaneously delivered down tube 9, inside tube 8 and passes through outlet 17 between bowl 14 and the bottom 16 of the drum and through the massecuite leaving wall 15 where it condenses.
Patent GB-652160-A (GB)
Title: Improvements in trigger pair circuits using thermionic valves
IPC: H04L25/24
Filed: 1947-08-06
Abstract: 652,160. Telegraphy. RADIO CORPORATION OF AMERICA. Aug. 6, 1947. No. 21424. Convention date, April 4, 1946. [Class 40 (iii)] [Also in Group XL (c)] A trigger pair circuit is arranged to return to a given one of its stable states if it remains in the other state for longer than a given period by means of a valve circuit comprising a resistance-capacity combination which has a time constant which exceeds the given period so that at the end of the period a voltage is applied to one valve of the trigger pair to trigger it to the given one of its stable states. Fig. 1 shows the use of such a trigger pair at the receiver of a telegraph system of the " on-off ", or " frequency shift " type in which between elements of a message a " mark " signal is received which is of negative polarity with respect to the " space " signals. When switch S1 is open incoming signals at terminals 10 are filtered and cause valves V1, V2 of the trigger pair to either conduct or cut-off depending on the "mark" or "space" condition of the signal. When switch S1 is closed and if in the " mark " or terminal condition V1 is conducting and V2 is cut-off then a positive going noise pulse will trigger the circuit to the " space " condition. Capacitor C1 then charges through resistor R6 to a higher level than in the " mark " condition as the voltage at the anode of valve V1 is correspondingly higher. If the period of charging is greater than the normal interval between elements of the system the gas discharge tube V3 fires and the resultant fall in its anode potential is applied through capacitor C2 to trigger V2 to the " mark condition. The breakdown voltage of tube V3 is adjusted to be of a value intermediate to the values of the potential at the anode of valve V1 in the conducting and non-conducting conditions of the valve. In a modification, Fig. 2 (not shown), a thyratron is used as the gas discharge tube with the grid biassed to a constant voltage. Fig. 3 shows a further modification in which two trigger pair circuits are used. Valves V4 and V5 are reciprocally coupled between anodes and control grids and connected so that in the " mark " condition valves V1 and V4 are conducting and V2 and V5 cut-off. Incoming telegraph signals are applied to terminals 10 and the telegraph recorder is connected across terminals 30. If the circuit is triggered into the " space condition " by a noise pulse then in the absence of a subsequent " mark " signal occurring within the normal interval between elements, valves V2 and V5 conduct so that point 46 of resistor 40 is driven negative and capacitor C1 charges until the gas-discharge tube V3 fires. The negative pulse produced at the anode of valve V3 when it fires cuts-off valve V2 and restores the circuit to the "mark" condition. Specifications 352,621, 635,263, 635,264, 645,155, [both in Group XL (c)], and 652,154 are referred to.
Patent GB-580545-A (GB)
Title: Improvements relating to work holders
IPC: B23Q3/08
Filed: 1943-12-21
Abstract: 580,545. Work - holders. OBECNY, J. T. Dec. 21, 1943, No. 21432. [Class 83 (iii)] A work-holder comprises a supporting body having one or more sockets each containing a collet in the form of a longitudinally slit cylinder adapted to be closed on to the work by a plunger having at one end, faces inclined to each other and to the longitudinal axis of the plunger which contract the arms of the collet. A body A has a row of sockets 10, each with a lower inwardly projecting flange which supports the collet B in the form of a hollow cylinder slit longitudinally and held in position by a split spring ring 23. The ends or arms 18, 19 of the cylinder are contracted on to the work by inclined faces 26, 27, at one end of a plunger D operated by fluid pressure from a pipe or channel 33 common to chambers 38 at the rear of each plunger. The collet arms are made more resilient by longitudinal slots 20, 21 which also co-operate with pins 22 to prevent rotation of the collet. A longitudinal slot 29 and transverse slots 30, 31 give resiliency tothe plunger face pieces. As shown in Fig. 8, the work C has an annular shoulder which rests on the upper edge of the collet. Alternatively, as shown in Fig. 13, the lower ends of the work pieces may be supported on a common lintel bar 52. Fluid pressure is supplied to the common channel 33 from a reservoir by means of a hand or motor driven pump under the control of a relief valve. A hand-operated valve is provided for releasing the pressure on the plungers.
Patent GB-332057-A (GB)
Title: Improvements in the manufacture and production of acetylene and hydrogen from hydrocarbons or gas mixtures containing the same
IPC: C07C2/80
Filed: 1929-07-12
Abstract: 332,057. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 12, 1929. Drawings to Specification. Gases, treating with electric discharge.- In the manufacture of acetylene and hydrogen by the electric arc treatment of hydrocarbons such as methane, the gases left after separating the acetylene wholly or in part are divided into two parts, one part being mixed with fresh gases and returned to the electric arc or arc system, and the other part being further treated in a second are or arc system, which may or may not be the same as the first system. The treatment in the. second arc or arc system may also be circulatory. The process is preferably effected under slightly reduced pressure. A flow sheet illustrating the steps of the process is given. Examples are given also. Specification 294,494 is referred to.
Patent GB-479442-A (GB)
Title: Improvements relating to shoulder carrying straps for bags
IPC: A45C13/30
Filed: 1936-08-05
Abstract: 479,442. Golf bags. McGINN, J. Aug. 5, 1936, No. 21526. [Class 132 (ii)] [Also in Group XVII] The inelastic shoulder strap 7 of a golf bag is provided with an elastic section 3 secured to the detachable cross-bars 4 of buckles 5 engaging the strap and carrying prongs 6, the extensibility of the elastic strip being limited by the loop portion 7a of the strap which is longer than the strip 3 retracted but shorter than the length of the strip when fully extended. One of the buckles may be dispensed with, the strip 3 then being permanently attached at one end to the strap.
Patent GB-992271-A (GB)
Title: Dolomitic refractory
Inventor: ATLAS LEON MAURICE
Filed: 1962-06-04
Abstract: A dolomitic refractory is made by calcining dolomite, at not above 2600 DEG  F., to yield dolomitic quicklime, grinding and mixing with a dead-burning agent sufficient to bring the total amount of dead-burning agent in the mixture to 0.3 to 2% by weight, forming into shaped discrete masses, and sintering the shaped masses at above 2600 DEG  F.  Dead-burning agents include, e.g. diatomaceous earth, silica, opaline, silica, silica gel, tripoli, iron oxide, mill scale, pyrite cinder, aluminium oxides, diaspore, gibbsite, bauxite, ball clay, flint clay, bentonite and kaolin clay.  The dolomite may have a purity of at least 98%; a dolomite rock containing up to 2% of dead-burning agent is suitable.  The dolomite may be calcined so as to yield a quicklime with a residual ignition loss of weight of 10% or less.  The quicklime and dead-burning agents may be ground to pass through a U.S. standard sieve of at least 50 mesh and mixed, and the mixture may be pressed at e.g. at least 4500 p.s.i., to form briquettes for sintering.
Patent GB-675109-A (GB)
Title: Improvements in or relating to electron discharge devices of the cathode ray tube type and to apparatus incorporating such devices
IPC: H01J31/04
Filed: 1949-08-19
Abstract: 675,109. Variable resistances. GENERAL ELECTRIC CO., Ltd., and NIXON, R. D. Aug. 25, 1950 [Aug. 19, 1949], No. 21619/49. Class 37. [Also in Groups XL (a), XL (b) and XL (c)] The input signal in conductor 9 modulates the intensity and controls the deflection of the beam of the cathode-ray tube 1 at electrodes 8, 5, respectively. The transversely-elongated beam,strikes the rectangular carbon target 4, opposite edges of which are connected respectively to the grid 10 and, through resistance 12, to the cathode 13 of valve 11. The potential of grid 10 is thus dependent both upon the beam intensity and the resistance of the portion of the target 4 between the beam and the edge connected to the resistance 12. The target may have a non-linear resistance characteristic and secondary emission therefrom may be reduced by a negatively-biased cylindrical electrode in its proximity.