baber/WOPTO huggingface dataset:
Patent GB-1198756-A (GB)
Title: Process for the Preparation of Pentaerythritol Tetranitrate Free from Acid, and Explosive Compositions
IPC: C07C201/02
Filed: 1968-07-19
Abstract: 1,198,756. Pentaerythritol tetranitrate. COMMERCIAL SOLVENTS CORP. 19 July, 1968 [21 July, 1967; 7 Feb., 1968], No. 34489/68. Heading C2C. [Also in Division C1] Pentaerythritol tetranitrate (PETN) containing less than 0À005% by weight of HNO 3 , and of improved sensitivity compared to acetone-purified PETN, is made by preparing a solution or dispersion of crude PETN in a liquid or low-melting solid explosive of low sensitivity, washing the solution or dispersion with water to remove HNO 3 , and then separating the other explosive from the PETN. Suitable explosives of low sensitivity are TNT, dinitrotoluene, trimethylol ethane trinitrate, propylene glycol dinitrate, butylene glycol dinitrate, diethylene glycol dinitrate, and dipentaerythritol hexanitrate. The mixture of PETN and the other explosive may be prepared by co-nitration of a mixture of pentaerythritol with dimethylolethane, ethylene glycol, diethylene glycol, propylene glycol, sorbitol, or mannitol. The water used may contain up to 10% of an alkali.
Patent GB-1403215-A (GB)
Title: Graft copolymers
IPC: C08G63/08
Filed: 1972-07-24
Abstract: 1403215 Graft polymers E I DU PONT DE NEMOURS & CO 24 July 1972 [26 July 1971 30 June 1972] 34534/72 Headings C3P and C3T Random organic graft copolymers comprise an amorphous base polymer having randomly grafted thereon at least one sidechain consisting of 3-1000 repeating units derived, from an α- substituted-#-propiolactone, the side chain(s) constituting up to 60 wt. per cent of the copolymer. The preferred lactone is pivalolactone, others being specified. Numerous base polymers are given, the following being used in the examples as numbered, in which the graft reaction occurs on a lithium group or a carboxyl group either present or produced in situ, e.g. by hydrolysis:-(1, 34, 35) lithiated polyisoprene, (2) lithiated polybutadiene, (3) lithiated SBR, (4) EPDM which has been carboxylated with mercaptoacetic acid, (5, 33) ethylene/ethyl acrylate/maleic anhydride copolymer, (6) chlorinated ethylene/methacrylic acid copolymer, (8) hydrolysed ethylene/ethyl acrylate copolymer, (9) chloroprene/methacrylic acid copolymer, (10) ethylene/methacrylic acid copolymer, (11 and 16-28) ethylene/vinyl acetate/acrylic acid copolymer, (12) maleimized EPDM, (13) lithiated poly-N-vinyl carbazole, (14, 15) ethylene/isobutyl acrylate/methacrylic acid copolymer, (29) ethylene/dimethylaminoethyl methacrylate copolymer-the reaction is stated to involve initial production of a carboxyl group by reaction with the lactone, (31) hydrolysed methyl methacrylate/ethyl acrylate copolymer, (32) methyl methacrylate/methacrylic acid copolymer, (33) ethylene/methyl acrylate/ethyl hydrogen maleate copolymer, and (36) hydrolysed poly-(ethylacrylate). In Example (7) the base polymer is a polydimethylsiloxane and the lactone is pivalolactone.
Patent GB-645372-A (GB)
Title: Apparatus for forming a luminous moving substitute target imitating the flight of actual moving targets such as human beings, birds, animals, vehicles and the like
IPC: F41G3/26
Filed: 1947-05-06
Abstract: 645,372. Shooting practice apparatus. GARRIDO, V. N. Dec. 30, 1947, No. 34576. Convention date, May 6. [Class 119] In shooting practice at moving targets and more particularly for pigeon shooting, a spot of light is projected on to a screen 2 to represent a target image, the projector 1 being moved in azimuth by one of a number of cams on a drum 9 and in elevation by one of a number of cams on a rotary disc 11 to simulate a target path. The cams are simultaneously rotated by gearing from a motor 6. According to the invention, the arrangement is such that, under the control of a switch 4 operated by spaced projections on a disc 5 on the shaft of cam disc 11, the light first appears at one or the other of openings 3 representing bird cages, and then moves in a path variable at will according to the cams in action, being finally extinguished to represent the termination of target range. On firing a dummy gun 13, a trigger-operated light spot is projected on to the screen to represent the result of firing.
Patent GB-1217193-A (GB)
Title: Apparatus and method for filling containers with beverage
Inventor: FRIENDSHIP KENNETH F
IPC: B67C3/06
Filed: 1968-07-19
Abstract: 1,217,193. Apparatus and method for filling containers. " AUTOMATIC " SPRINKLER CORP. 19 July, 1968, No. 34594/68. Heading B8T. An apparatus for filling containers with carbonated beverages comprises an inlet tube 16 the top end of which communicates with a chamber 25, an exhaust tube 28, a distributer head formed by plates 18, 19, and fluid lines 24. Beverage is provided to an inlet line 10 and further passes via tube 16 to chamber 25. The method of filling containers enables any entrapped air or gas bubbles to flow upwardly and to be drawn off as a controlled discharge via pipe 28 to the return line 12. Neck 26 and downwardly extending passage 27 permit the flow of beverage to lines 24 which individually connect to containers.
Patent GB-448045-A (GB)
Title: Improved methods and apparatus for suppressing noise in automobile radio receivers
IPC: H05K9/00
Filed: 1934-12-03
Abstract: 448,045. Couplings. COUTTS & CO., 440, Strand, London, and JOHNSON, F., 218, Victoria Avenue, Eastbourne, [Representatives of JOHNSON, J. Y.].-(Philadelphia Storage Battery Co. : Ontario Street, Philadelphia, U.S.A.) Dec. 3, 1934, No. 34666. [Class 38 (i)] [See also Group XL] A device for ensuring good electrical contact between the metal casing and cover of a radio receiver comprises a U-shaped clip 3, a number of which are fitted over the edge of the casing 1 which is formed with a groove 2 for that purpose. The clip has its four corners bent inwards, as shown in Fig. 2, to form a spring between the cover and the casing, detents 7 being punched inwards to engage the groove 2 and retain the clip in position. The invention particular application to radio receivers for motor vehicles.
Patent GB-301868-A (GB)
Title: Improvements in or relating to induction heating apparatus
IPC: H05B6/02
Filed: 1928-11-24
Abstract: 301,868. Neiss, O., and Bollmann, H. Dec. 7, 1927, [Convention date.]. Heating by electricity.-In apparatus wherein conducting tubes 3 containing the medium to be heated have currents induced in them by a rotary field the tubes are embedded in a common closed magnetic circuit 1 together with the primary winding 2. The tubes and the primary winding are arranged in common slots or the number of tubes is a simple multiple of the number of slots for the primary winding. A plurality of rotary fields may be produced and the relative phase displacement may be automatically varied to vary the heating effect by means of a heat sensitive device. The tubes may be extended to any length outside the iron before they are interconnected. Auxiliary heaters may be provided to cover radiation losses. The apparatus may be used for industrial heating processes and for steam generation.
Patent GB-1064118-A (GB)
Title: Improvements in and relating to cathode ray beam operated information storage devices
IPC: H01J37/302
Filed: 1963-09-03
Abstract: 1,064,118. Recording &c. apparatus using electron beams. UNITED AIRCRAFT CORPORATION. Sept. 3, 1963 [Sept. 4, 1962], No. 34732/63. Heading G5R. [Also in Division H1] In an information storage device, an electron beam is controlled in accordance with information to be stored to form apertures in a record member in a pattern representative of said information and means are provided, responsive to the passage of the beam through the apertures, for reading the stored information. The record member may comprise a tape 12 of aluminium, 1 mil. thick, with or without a surface coating of thermoplastic material, ¢ mil. thick, the electron beam being used to evaporate the material of the tape to form apertures through the tape or in the surface coating. As shown, the tape passes over conductive roller 16, and insulating sprocket 18, the teeth of which coact with slots in the edge of the tape, and which drives an X-position transducer 19. An X-position command 26 and the output of transducer 19 are differentially combined in a comparator circuit 28, the output of which is fed to the tape drive mechanism 22 and the X-deflection input of tube 10, and is also coupled to a hysteresis circuit 30 which prevent any signals from being coupled to the intensity input of the tube 10, if the desired X-position of the tape is not within the field of view of the electron beam. During writing, switches 42, 43 are positioned as shown to apply a high voltage V to the tube anode, and to couple input signals to a fixed source Io in adding circuit 48 and thence to tube 10. Information may be digitally stored as discrete holes of varying size, or analogue information may be stored as tracks of varying width. During reading, switches 42, 43 connect a low voltage # to the tube anode and a fixed reduced voltage to the intensity input of the tube to produce a non-destructive read-out beam, the output being obtained from a brush 17 engaged by a slip ring 16a of the conductive roller 16 and/or from the collector electrode 14 which are connected via subtraction circuits 54, 52 to a fixed source E 0 . The voltage sources I 0 , E 0 , V are chosen so that the output is proportional to the input intensity. Holes provided in the margins of tape 12 may be used to calibrate the X and Y deflection circuits, and holes of predetermined different sizes may be provided to calibrate the amplitude sensitive circuits and to adjust voltage sources I 0 , E 0 , V. If the tape comprises a thermoplastic coating on a conductive backing, recorded information may be erased by melting the thermoplastic coating so that a smooth surface reforms.
Patent GB-823989-A (GB)
Title: Electromagnetic fluid mixture clutch
Inventor: LEFF CECIL
IPC: F16D37/02
Filed: 1956-11-14
Abstract: 823,989. Making clutch members; flanging. LEAR Inc. Nov. 14, 1956, No. 34759/56. Classes 83 (2) and 83 (4). [Also in Group XXXV] An electromagnetic fluid clutch-driven member 12 comprises a disc which is radially slotted at 60 to form a plurality of segments 64 the ends of which are bent over a die 70 to form an axially extending flange 28 for disposal in the clutch polepiece air gap, feeler gauges (not shown), being inserted between the die cylindrical periphery and certain of the segments to cause the segments forming the flange to lie on two different circumferences of predetermined diameters. Segments of one diameter may be adjacent or they may alternate, as shown, with those of the other diameter. The member 12 may be wholly of magnetizable material or may comprise a magnetizable flange on a non-magnetic disc. U.S.A. Specification 2,705,064 is referred to. Reference has been directed by the Comptroller to Specification 649,553, [Group XXIV].
Patent GB-1309469-A (GB)
Title: Production of trialkoxy aluminium compounds
IPC: C07F5/06
Filed: 1970-07-17
Abstract: 1309469 Production of trialkoxy aluminium compounds ETHYL CORP 17 July 1970 [18 July 1969] 34785/70 Heading C2C  A trialkoxyaluminium compound is prepared by reacting an aluminium trialkyl with oxygen, a chloride, bromide or iodide of a Group IVB metal being included as a catalyst at a stage in the oxidation where it is not substantially inactivated by aluminium trialkyl. The oxidation may be carried out in the absence of the catalyst to a level of 30 to 70% alkoxy groups, e.g. 30 to 60%, at which stage the catalyst is added and the oxidation continued to substantially complete the oxidation. The preferred catalysts are titanium chloride and titanium tetrachloride.
Patent GB-745611-A (GB)
Title: Centrifugally operated electric switches
Inventor: DEAN JOHN ROBERT
IPC: H02P7/06
Filed: 1953-12-15
Abstract: 745,611. Switching systems. LUCAS (INDUSTRIES'), Ltd., J. Dec. 7, 1954 [Dec. 15, 1953], No. 34869/53. Class 38 (4). A switching system responsive to the speed of a centrifugal devices, comprises a switch having a moving contact b operated by the device f and co-operating with oppositely disposed fixed contacts c, d, and a relay g, m controlled by the switch and having, in addition to a contact k which controls the load circuit o, a holding contact j. The arrangement is such that below a certain speed of the device f a spring e maintains switch contacts b, c closed, thereby short-circuiting the coil g of the relay, which consequently is in its open position and de-energized. Upon an increase of speed sufficient for the device f to move contact b into engagement with contact d an energizing circuit for the relay coil g is completed. The relay thus responds, closes the load circuit and holds in over contact j, even though contacts b, d may subsequently separate, until speed falls sufficiently for contacts b, c to reclose. The load o may be the operating coil of an electromagnetically actuated valve, switch, or change-speed mechanism on a vehicle.
Patent GB-1254808-A (GB)
Title: Diazonium compounds
IPC: G03C1/54
Filed: 1970-07-17
Abstract: 1,254,808. Monoazo dyes. OCE VAN DER GRINTEN N.V. 17 July, 1970 [18 Aug., 1969], No. 34878/70. Heading C4P. [Also in Divisions C2 and G2]  Azo dyestuffs are prepared by reacting a 4- tertiary amino-3-alkylbenzene diazonium compound wherein the 3-alkyl group contains 1-4 carbon atoms and wherein, in 2- or 6-position, there is a substituent of the formula where R 8  is substituted or unsubstituted alkyl, cycloalkyl or aralkyl and R 9  is hydrogen or substituted or unsubstituted alkyl, cycloalkyl, aralkyl, aryl, alkoxy, cycloalkoxy, aralkoxy or aryloxy with 1-phenyl-3-methyl-pyrazolone-5.
Patent GB-429696-A (GB)
Title: Improvements in and relating to railway level crossing signals
IPC: C01C1/04
Filed: 1933-12-11
Abstract: 429,696. Level-crossing signals. NAAMLOOZE VENNOOTSCHAPMACHINERIEENEN APPARATEN FABRIEKEN MEAF, (formerly NAAMLOOZE VENNOOTSCHAP MACHINERIEEN-EN APPARATEN FABRIEKEN), 30, Croeselaan, Utrecht, Holland. Dec. 11, 1933, No. 34881. Convention date, Dec. 9, 1932. Addition to 416,117. [Class 105] The level-crossing signalling arrangement described in the parent Specification is modified so that only two auxiliary relays are used, these relays having no conductive connection with the rails and, on entry of a train, serving to connect the rail lying at the crossing with the front section or with earth. A train entering from the left shunts the track relay GRI the contact 1 of which drops to extinguish the " clear " lamp W and to light the warning lamp R while the contact 2 energizes an auxiliary relay HEI over back contact 2 of the other auxiliary relay HEII. The track relay GRII now drops by reason of the earthing of rail B over front contact 3 of auxiliary relay HEI and back contact 3 of track relay GRI. Front contact 4 of auxiliary relay HEI connects the level crossing rail C with the rail A at the entered side. As soon as the train leaves the rail C at the crossing the track relay GRI is re-energized but relay HEI remains energized over a stick circuit including back contact 2 of the other track relay GRII. The " clear " lamp W is now lit over front contact 1 of track relay GRI, back contact 1 of track relay GRII, and front contact 1 of auxiliary relay HEI. When the train leaves the rail B at the exit side the track relay GRII is re-energized so de-energizing the auxiliary relay HEI. The apparatus is now in its normal state and the " clear lamp W circuit is transferred to the front contacts 1 of the two track relays GRI, GRII. With a train entering from the. right the other auxiliary relay HEII would be energized and stuck up to control the signals and connect up the rail C to rail B in a similar manner. If gas lamps are used at the crossing the action of the relays is to energize a magnet GM at clear conditions and this magnet operates a cock to supply the red or white lamp. With an arrangement having for the two sections single insulated rails overlapping at the crossing, Fig. 2, (not shown) the auxiliary relay connects the second rail to earth when a train enters the first rail.
Patent GB-288565-A (GB)
Title: Improvements in or relating to means for regulating the terminal voltage of a generator
IPC: H02P9/26
Filed: 1927-12-23
Abstract: 288,565. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. April 12, 1927, [Convention date]. Addition to 264,891. Regulation, automatic.-In the regulation of field current according to the parent Specification by means of a two-electrode discharge tube 3 in shunt to the field 2 controlled by the potential drop in a resistance 8 in the load circuit, this drop is made to balance the opposing potential 7 in the cathode circuit at a given load or overload, so that at loads exceeding this the field is reduced and the effect of a short-circuit on the generator is minimized.
Patent GB-793472-A (GB)
Title: Improvements in or relating to fountain pens
IPC: B43K15/00
Filed: 1955-12-06
Abstract: 793,472. Reservoir pens. NEGRO, A. Dec. 6, 1955 [Dec. 30, 1954], No. 34953/55. Class 146(3) A nib 2 is held in a tapered sleeve 3 provided with longitudinal splines 1 which engage integral splines 4 in a nib-section 5 in order to centre and align the nib correctly in the nib-section.
Patent GB-338366-A (GB)
Title: Improvements in vanity boxes and the like
IPC: A45D33/06
Filed: 1929-11-15
Abstract: 338,366. Friedman, W. Nov. 15, 1929. Contents, delivering. -Face powder is held in a box 1 beneath a hinged plate 11 having a number of spiral slits so that the centre can be depressed to form openings through which the powder can pass. A plate 8 forms a piston to assist in ejecting the powder. The plate 11 may be covered by another plate with a hole in the middle.
Patent GB-498715-A (GB)
Title: Improvements in and relating to liquid cooling devices
IPC: F28F25/02
Filed: 1937-12-17
Abstract: 498,715. Cooling water &c. VELUT, R. Dec. 17, 1937, No. 35020. Convention date, Dec. 18, 1936. [Class 29] In apparatus of the kind in which water &c. flowing down horizontally corrugated or embossed plates is cooled by air passing across the plates, the corrugations are of such form and dimensions that water is retained therein by capillary attraction. Thus, e.g., the corrugations in the plates 4 suspended through slots in the bottom of a tank 1 have a pitch h of from 4 to 5 mm. and a depth of from 3 to 6 or 6 to 8 mm. according to whether the plates are supplied with water continuously or intermittently. The plates may be suspended through slots 3, Fig. 3, in segmental troughs supplied with water by a rotary pipe 9. In order to fill the corrugations in the plates, a siphon may be provided to give a large initial supply of water to the tank. Specification 442,922 is referred to.
Patent GB-426618-A (GB)
Title: Improved construction of hat stand
IPC: A47F7/06
Filed: 1934-12-06
Abstract: 426,618. Hat stands. MAGNUS, H. F., 79, Fore Street, London. Dec. 6, 1934, No. 35059. [Class 52 (v)] [See also Group VII] A stand or block for hats comprises a hollow dome 1 of buckram moulded to shape provided with legs or supports 4 so arranged that they can be moved or folded into the hollow dome when not required. The edge of the dome 1 is secured to an oval wire frame 2 and the legs 4 are pivoted to plates 3 projecting up into the dome at opposite sides. Each leg 4 consists of a length of wire bent to form a triangle, the side of which are extended at 4<a> and bent outwards to contact with the ring 2, the free ends being bent towards one another and engaged in a curl 3<a> on the plate 3. Instead of being hinged the legs can be arranged to slide into and out of the hollow member. The stand may be left in a hat when carried in a box or case, to act as a block for retaining the shape.
Patent GB-970329-A (GB)
Title: Printing machine
IPC: B41F21/05
Filed: 1962-09-14
Abstract: 970,329. Rotary printing apparatus. SCHNELLPRESSENFABRIK A.G., HEIDELBERG. Sept. 14, 1962 [March 30, 1962], No. 35071/62. Heading B6C. A rotary machine for direct or indirect relief printing, or offset lithographic printing, comprises a unit of at least three cylinders 16, 9 and 11, a feed table 1, and a rotating feed drum 4, the table and the drum being adjustably mounted in the fixed side walls of the machine frame so that each sheet to be printed may, depending upon the adjustment for direct relief or offset printing, be transferred to the cylinder 9, Fig. 1, or the cylinder 16, Fig. 3. The cylinders 16, 9 and 11 rotate in opposite directions in the embodiments of Figs. 1 and 3. The drum 4 is adjusted in position by means of eccentric bushes 6, 6<SP>1</SP> and the table 1 is adjusted by changing shims, not shown. The printed sheets are delivered by the cylinder 16, which is the impression cylinder in Fig. 3, to grippers 19 on chains 20. The chains 20, the inking arrangement 12, and the cylinder arrangement are all driven from a shaft 23 by worm and gear means. Fig. 3 includes a moistening device 27. The grippers 19 may alternatively feed the sheets to a second printing unit e.g. for multicolour printing. The feed roller 4 may be replaced by swinging grippers carried by a mounting bar pivoted on the same axis as that used by the said roller.
Patent GB-919220-A (GB)
Title: Improvements in or relating to cultivators
Inventor: WILLIAMS ALAN FOULKES
IPC: A01B35/24
Filed: 1960-10-14
Abstract: 919,220. Agricultural implements. MASSEY-FERGUSON (AUSTRALIA) Ltd. Aug. 29, 1961 [Oct. 14, 1960], No. 35214/60. Class 6(1). A tine assembly for use on a cultivator comprises a tine 12 pivotally mounted on a cultivator frame 10 and having an anchorage for one end of a tension spring 21 for urging the tine into its normal working position, the anchorage comprising a crank 26 which is turnable between upper and lower limit positions so that when the spring is attached its moment arm about the pivotal mounting point may be varied. The crank 26 has a hexagonal head 29 so that it may be turned so that it moves over its dead centre in its movement between the limit positions. The crank is held in its positions by a plate 32 which abuts against stops 33, 34.
Patent GB-496336-A (GB)
Title: Process for the treatment of fabrics comprising derivatives of cellulose
IPC: D06M13/188
Filed: 1937-12-20
Abstract: The handle of textile fabrics containing both cellulose derivative fibres and animal fibres is improved by treating them with a dilute aqueous solution of a volatile neutral organic solvent or swelling agent for the cellulose derivative at an elevated temperature for a period of the order of 2-20 minutes. The solvent or swelling agent may be methyl, ethyl, or other lower fatty alcohol, or acetone, preferably in an aqueous solution of concentration between 1 and 10 per cent.  The fabrics may be immersed in or sprayed with the solution of swelling agent, and the temperature may be 50-75 DEG  C. The material may be dyed before being treated with the solution of solvent or swelling agent.  In addition to the improvement in handle, the treatment also reduces the tendency of weft to slip on the warp. Specification 280,990, [Class 2 (ii)], is referred to.
Patent GB-394349-A (GB)
Title: Improvements in soles for footwear
IPC: A43B7/06
Filed: 1931-12-21
Abstract: 394,349. Boots &c. MAVAUT, O., 85, Rue du Bois de Linthout, WoluwÚ St. Lambert, Brussels. Dec. 21, 1931, No. 35301. Convention date, Dec. 27, 1930. Addition to 375,846 and 375,895. [Class 17 (ii).] The invention is a modification of that described in Specification 375,846 and is characterized in that air holes 3 in ventilated rubber footwear are arranged in the fore part of the sole at the tread or lowest part when being worn and are surmounted by an imperforate closing member 11, shown reversed, which makes watertight contact with the bottom of the cavity 4 into which the air holes 3 extend. The closing member 11 has a longitudinal channel 7 in its lower face connecting with the air holes 3 so that water can drain out without wetting the insole or foot. The passages 3 which pass completely through the sole are covered with a countersunk gauze canvas 5 and by the member 11 with passages 7 which pass preferably to the waist of the shoe. At this point another channel 7<1> in the sole passes down towards the toe. This channel is covered by a perforated insole.