baber/WOPTO huggingface dataset:
Patent GB-260953-A (GB)
Title: Improvements in or relating to furnace settings
IPC: F23C99/00
Filed: 1926-08-17
Abstract: 260,953. Plibrico Jointless Firebrick Co., (Assignees of Pieters, I. S.). Nov. 9, 1925, [Convention date]. Liquid and gaseous fuel furnaces. -A furnace for heating oil refining stills or the like comprises a pair of longitudinal combustion chambers 21 arranged beneath the still 14 and extending from the front wall of the furnace, in which are arranged oil or gas burners 30, to a bridge wall 10. The combustion products issue through openings 46 in the side walls of the combustion chambers and if desired through openings 40 in the top adapted to be entirely or partly closed by bricks 42. The combustion products pass out through flues 60, 62 and the flue 62 may be connected by a conduit 65 to an opening at the front of the furnace so that the products may he recirculated.
Patent GB-1367597-A (GB)
Title: Pyrrolidine derivative
IPC: C07D207/22
Filed: 1973-04-30
Abstract: 1367597 2-iminopyrrolidine derivative RICHARDSON-MERRELL Inc 30 April 1973 [11 Aug 1972] 20460/73 Heading C2C The novel compound, 2-[(1-benzylcyclopentyl)imino]pyrrolidine, and its pharmaceutically acceptable acid addition salts, are prepared by reacting an excess of a 2-(C 1-4  alkoxy or alkylthio)-1-pyrroline with 1-benzylcyclopentylamine, or its hydrochloride and optionally converting a free base obtained into an acid addition salt or vice versa. In acid addition salt form, the novel compound may in the tautomeric aminoform, i.e. as an acid addition salt of 2-[(1-benzylcyclopentyl)amino]pyrroline. Pharmaceutical compositions having hypoglycemic activity, for oral or parenteral administration, comprise the novel compound or a pharmaceutically acceptable acid addition salt thereof, together with a pharmaceutical diluent or carrier.
Patent GB-691734-A (GB)
Title: Improvements in instruments for measuring the accuracy of profile of gear teeth
IPC: G01B5/20
Filed: 1949-08-06
Abstract: 691,734. Gear-grinding. CLEFF, P. H., and FORD, D. C. Nov. 6, 1950 [Aug. 6, 1949], No. 20516/49. Drawings to Specification. Class 83 (iii). [Also in Group XIX] According to the Provisional Specification, a machine for grinding gear-teeth comprises a linkage mechanism for guiding a grinding-wheel in such a way that its grinding surface is always at a tangent to a conic section, said conic section so closely resembling the desired involute curve as to be negligibly different therefrom. The grinding-machine may comprise a horizontallymounted and rotatable table with means for setting up and indexing the table with respect to a grinding head or heads, and for carrying a work-piece such as a gear blank. Mounted on a vertical column outside, and adjustable as to its distance from the table, are two positionallyadjustable brackets each of which carries a swinging block slider crank whose coupling link provides bearing support for a motor-driven spindle, there being a grinding-wheel mounted at one end of this spindle. Controlled angular oscillation of the crank causes the grinding- wheel, which has a flat grinding surface in the form of a narrow annulus, to move in such a way that the grinding surface envelopes a precalculated conic section whose main dimensions such as minor and major axes and linear eccentricity, determine the setting of the centres of the swinging block slider crank as well as the length of the crank. Rate of feed and depth of cut are controlled respectively by a rectilinear downward movement of the grinding head along, and a lateral adjustment of said head relative to, this column. More than one grinding head may be used.
Patent GB-397655-A (GB)
Title: Improvements in or relating to surgical knives
IPC: A61B17/32
Filed: 1932-07-21
Abstract: 397,655. Detachable-blade surgical knives. THACKRAY, C. F., 10, Park Street, Leeds. July 21, 1932, No. 20558. [Class 61 (i).] A surgical-knife blade f is detachably connected to the handle a by means of a number of key-hole slots g in the blade engaging headed studs e projecting laterally from a forward extension c of the handle and by the flexible engagement of the end h of the springy blade with a shoulder d on the handle, the blade being pulled in a forward direction after engaging the slots over the studs.
Patent GB-626032-A (GB)
Title: Polymerised chloroprene-cashew nut shell liquid composition
IPC: C08L11/00
Filed: 1947-07-30
Abstract: A composition comprises an intimate mixture of polymerized chloroprene and thickened cashew nut shell liquid, by which term is meant a more viscous material derived from cashew shell nut liquid by polymerizing, with or without prior treatment, such as distillation, etherification or condensation with compounds having a reactive methylene group.  Other materials such as plasticizers, fillers and vulcanizers may be incorporated and the compositions may be cured.
Patent GB-273521-A (GB)
Title: Improvements in and relating to the automatic locking of the doors of railway carriages
IPC: E05B65/42
Filed: 1926-08-20
Abstract: 273,521. Smith, J. T. Aug. 20, 1926. Railway carriage doors, fastening automatically.-A locking-bar 1 is mounted outside the carriage 3 and below the doors 4 and is raised to prevent the opening of the doors whilst the train is in motion bv means connected to the vehicle wheels or the vacuum brake. The bar 1 has inclined slots 7 engaged by pins 6 which may carry rollers and may be mounted in brackets 2. The bar 1 is actuated by rod 37 or Bowden cable from a governor 23 driven from a pulley on the axle 29. A form of governor with tilting fly wheel is also described. The bar 1 may be actuated when the vacuum brake is released, and to enter carriages standing without a locomotive, the bar can be manually moved clear of the doors and retained by a pin.
Patent GB-1106486-A (GB)
Title: Improvements in axial piston pumps or motors
IPC: F01B3/10
Filed: 1966-05-10
Abstract: 1,106,486. Reciprocating pumps and motors. GENERAL ELECTRIC CO. May 10, 1966 [May 12, 1965], No. 20587/66. Heading F1A. The pistons of an axial piston pump or motor have ball ends which engage in sockets formed in caps 28 engaged in pockets 44 formed in a wobble plate 30. The caps have flanges the surfaces 46 of which engage the wobble plate 30. The centres of the balls and sockets, the surfaces 46 and the engaged surfaces of the wobble plate lie in one plane. The wobble plate has a splined driving connection 38 with the drive-shaft 34 and engages an angularly adjustable stationary cam-plate 32. The pockets 44 are supplied with pressure fluid from the working cylinders via passages 48 in the pistons. In a modification the splined drive 38 is replaced by a sleeve driven by the body and having slots in which blocks on trunnions on the plate 30 slide.
Patent GB-699154-A (GB)
Title: Improvements in or relating to the production of di-alkyl phosphites
IPC: C07F9/142
Filed: 1952-08-31
Abstract: Di-alkyl phosphites are prepared by the direct esterification of ortho phosphorous acid with a monohydric aliphatic alcohol containing at least three carbon atoms in the molecule by heating under conditions such that any water present and the water formed during the esterification is continuously removed.  The preferred method of removing the water is by maintaining in the reaction mixture toluene or other volatile organic solvent which is capable of effecting removal of water by entrainment, and is one capable of forming a ternary azeotrope with water and the alcohol.  The process is carried out by heating under reflux a mixture of phosphorous acid, an excess of the monohydric alcohol and a substantial amount of the organic solvent, so that a slow continuous vapour stream of the ternary azeotrope is carried outside the main reaction mixture.  This vapour stream is allowed to settle in a water separator, the water layer discarded, and the alcohol-solvent mixture returned to the main reaction vessel.  The preferred phosphorous acid is of approximately 90 per cent concentration.  Alcohols mentioned include n-propanol, isopropanol, the butanols, pentanols, hexanols, octanols and other higher alcohols.  Inert organic solvents used as water entrainers include benzene, toluene, xylenes, carbon tetrachloride, trichloroethylene, perchloroethylene, anisole, di-n-butyl ether and higher ethers having atmospheric boiling-points below 150 DEG  C. Esters mentioned as prepared by the process of the invention include di-n-butyl phosphite, di-2-ethylhexyl phosphite, di-dodecyl phosphite, and di-octadecyl phosphite.
Patent GB-294649-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/36
Filed: 1928-06-05
Abstract: 294,649. Grõflich Schaffgotsch'sche Werke Ges., (Assignee of Fischer, H.). July 29, 1927, [Convention date]. Divided on and addition to 291,724. Sparking-plugs. - The insulating tube m, preferably of silica, is resiliently held by mica washers k, r, an aluminium washer q, spring washer c and nut b. Mica wrappings s surround the conductor i within the space left by the tube m.
Patent GB-148058-A (GB)
Title: Improvements relating to gas stoves, fires, and the like
IPC: F24C3/04
Filed: 1919-08-25
Abstract: 148,058. Parkinson Stove Co., and Gibb, D. M. Aug. 25, 1919. Gas fires.-In a gas fire having an air-heating chamber at the back of the radiating part, each radiator c is mounted in a refractory trough-shaped slipper or carrier a so that without sacrifice of radiation a metal front k can be used for the air chamber. Each radiant is retained at its upper end by a lip c of the carrier and at the lower end both carrier and radiant are supported on claws h of the frame. Some of the hot gases escape through openings d in the lips c and the remainder through openings d<1> in the back into a space m between the carrier and the plate k. The back k has forwardly projecting sides which at the top engage behind lugs q, these lugs also serving to secure against the plate k a refractory apron g which retains the carriers a at the top. After engagement of the upper end of the plate k (together with apron g) behind the lugs q its lower edge rests on a rearwardly-arranged ledge o of the front frame and is secured thereto by a nut w. The bar x carrying the claws h is secured to the back k by a single stud x and nut z. Openings 8 in the front and corresponding openings below the ledge o admit air to the air-heating chamber.
Patent GB-483443-A (GB)
Title: Improvements in offset printing machines and to transfer rollers therefor
IPC: B41F13/08
Filed: 1937-07-27
Abstract: 483,443. Printing-machines. OXVAR, Ltd. (Oxford Varnish Corporation) July 27, 1937, No. 20808. [Class 100 (iij] A hollow transfer roll for an offset printing- machine has a flexible transfer surface which can adapt itself to correspond with irregular contours on workpieces, internal means being provided to lock the flexible surface against deformation when desired. The transfer roll can be used manually by providing a pair of handles on its shaft, or can as described be incorporated in an offset decorating-machine. A pattern roll 10, preferably intaglio, receives colour from a duct roll 15 and transfers it to a transfer roll 20. The roll 20 is supported on a shaft 21 by a pair of end plates 80 which are secured to the opposite ends of the roll and are rotatably mounted in the arms of a yoke 19. The roll 20 has a core comprising a number of relatively thin rings 24 and a central thicker ring 25 each of which, apart from the two end ones, is provided with two central openings, a smaller one 28, and a larger one 27. Discs 26, all of the same diameter and corresponding to the openings 28 in the rings, are secured to the shaft 21 in 'spaced relationship, and adapted to be moved by the shaft to register with either the smaller or larger openings in the rings, whereby in the former positions they hold the rings rigid to form a cylindrical transfer roll, and in the latter positions they allow the rings to move transversely to the shaft 21 and relatively to each other as shown in Fig. 4. If desired, the openings in the rings may be of the same diameter, and the rings may have two different diameters. A hollow cylindrical body 30 of a glue and glycerine compound embraces the rings 24, 25, and intermediate the body and the rings is a tubular sleeve 32 of pre-stretched rubber. The workpiece W is fed between the transfer roll 20 and a platen roll 40 by a pair of endless chains 35 provided with lugs 36 which engage a workholder 43. The roll 20 is oscillated to engage the pattern roll 10 and then to engage the workpiece. To effect this the yoke 19 carrying the shaft 21 of the roll 20 is pivoted on a shaft 46, and a roller on the yoke engages a groove 51 in a rotating cam disc. As the roll 20 moves upward toward the roll 10, the shaft 21 is moved longitudinally by a fixed cam on the machine frame so that discs 26 hold the rings 24, 25 concentric with the shaft. As the roll 20 descends, a further fixed cam moves the shaft 21 in the opposite direction to release the rings whereby the surface of the roll can accommodate itself to the workpiece W. The shaft 41 of the platen roll 40 is power-driven, and is geared to the pattern and transfer rolls, and also to the conveyer chains 35, whereby all are driven in timed relationship with each other.
Patent GB-915884-A (GB)
Title: Improvements in or relating to positioning mechanisms
IPC: G11B23/50
Filed: 1961-06-08
Abstract: 915,884. Video recording; tape pressure members. AMPEX CORPORATION. June 8, 1961 [Aug. 22, 1960] No. 20828/61. Class 40 (2). An assembly 21, holding a tape 2 in operative position against a pair of transverse-tracking head drums 47 is movable repeatedly in and out of position by a parallelogram linkage comprising bladesprings 25, repeatable engagement being provided by abutments 4 which may be set by handadjusted means 62, 63, 67 and the position controlled by means 12, 16. Where servo means derived from a pre-recorded transverse track are to be used to control the position of the assembly 21, as in Specification 883,637, the member 16 may drive a potentiometer forming part of the servo network. A groove 23 smooths the initial engagement of the heads and the assembly 21 may include heater means to maintain a constant tape temperature at the heads.
Patent GB-1436482-A (GB)
Title: Chloroprene polymers
IPC: C08F2/22
Filed: 1974-05-10
Abstract: 1436482 Oil-extended chloroprene polymer latex E I DU PONT DE NEMOURS & CO 10 May 1974 [14 May 1973] 20859/74 Heading C3P Chloroprene polymer latex is prepared by polymerizing chloroprene, optionally with up to 20 wt. per cent of a comonomer in aqueous emulsion at 25-35‹ C. using a free-radical initiator, and thereafter mixing with the latex, 15-25 parts by wt. per 100 parts by wt. of polymer, of an aromatic oil. The oil is preferably of the type classified by ASTM D 2226-65T as type 101 or 102. The oil may be in aqueous emulsion before mixing with the chloroprene latex. The oil permits easy processing of the chloroprene rubber.
Patent GB-858354-A (GB)
Title: Method and apparatus for stabilizing liquids
IPC: B01F11/00
Filed: 1958-06-30
Abstract: Liquids having a multitude of particles of widely varying size, e.g. milk, reconstituted with powder with added vegetable fat, salad dressings, sizing liquids, water-and-oil emulsions, are stabilized by a homogenization process comprising imparting a forward flow to the liquid by an impelling device of at least 90% volumetric efficiency, maintaining an instantaneous flow variation below 10% and directing the liquid flow past an obstruction to obtain a liquid in which the particles are of substantially uniform size.  The obstruction is preferably a comminution device, e.g. such as that described in Specification 751,531, including a valve which is held firmly but resiliently in position and the particles, e.g. fat globules, are reduced in size from above 2 microns to not more than 2 microns. Liquids may be heated before treatment.ALSO:Liquids having a multitude of particles of widely varying size, e.g. milk, reconstituted milk powder with added vegetable fat, salad dressings, sizing liquids, water-and-oil emulsions, are stabilized by a homogenization process comprising imparting a forward flow to the liquid by an impelling device of at least 90% volumetric efficiency, maintaining an instantaneous flow variation below 10%, and directing the liquid flow past an obstruction to obtain a liquid in which the particles are of substantially uniform size.  The obstruction is preferably a commination device, e.g. such as that described in Specification 751,531, including a valve which is held firmly but resiliently in position, and the particles, e.g. fat globules, are reduced in size from above 2 microns to not more than 2 microns.  The impelling device is suitably a five cylinder piston pump driven by a crankshaft which is off set with respect to the plane containing the cylinder axes and which operates the valves regulating suction into and discharge from the cylinders, and the pistons in the order, first, fourth, second, fifth and third cylinder.  In the treatment of milk, this is preferably heated to 120 DEG  to 215 DEG  F. before introduction into the apparatus.
Patent GB-854587-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/228
Filed: 1959-06-18
Abstract: 854,587. Capacitors. BOSCH G.m.b.H., R. June 18, 1959 [Aug. 2, 1958], No. 20889/59. Class 37 An electric capacitor has one electrode of metal foil 10 having a matt side and a shiny side, each side being coated with an e.g. organic dielectric layer 11, 12 adhering to which are self sealing metal layers 13, 14, the metal layer 14, of e.g. vapour deposited zinc on the dielectric layer adhering to the shiny side being thinner than that on the other side. To eliminate weak spots in the dielectric coating a voltage is applied between the plates allowing sufficient current to flow to remove low resistance parts of the lacquer.
Patent GB-385343-A (GB)
Title: Improvements in electric time signalling devices
IPC: G04C21/30
Filed: 1931-07-22
Abstract: 385,343. Time signals. DAVALL, L. S., 29, Percival Street, RICHARD, E. A:, 122, Aldersgate Street, CUSS, A. C., 54, New Oxford Street, and DELLER, H., 58, Wargrave Avenue, Stamford Hill, all in London. July 22, 1931, No. 20959. [Class 118 (ii).] Clock - controlled signalling apparatus, particularly for use in publichouses to signal near and at closing time, comprises a contact wheel b, mounted on a clock minute spindle and carrying pairs of contact arms c spaced ten minutes apart and adapted to close the signalling circuit a through a contact d mounted on a pivoted lever f. The latter is normally rocked clear of arms c by a sprung control lever k, connected to an arm q. A setting wheel m mounted on the clock hour spindle has peripheral notches or apertures corresponding' to half-hours, into any of which resilient arms o may be. set, tappets p thereon rocking arm q and. thereby releasing lever f so that the signalling circuit is made at c, d, at ten minutes before and at the .desired hour or half-hour. The. lever f may carry a plurality of contacts d to operate a plurality of signals, the corresponding contact arms c being arranged in different planes..The setting wheel n may bear forty-eight notches, in which case there will be four pairs of arms c, and may carry further arms o. The arms c may be adjustable to vary the time interval between signals.
Patent GB-516981-A (GB)
Title: Improvements in and relating to lamp pendants
IPC: F21S8/06
Filed: 1938-07-15
Abstract: 516,981. Lamp pendants. DANDRIDGE, G. F. J. July 15, 1938, No, 21016. [Class 75 (iii)] The detachable arms c carrying lamps from a centre piece are made with dovetail ends dropping into appropriate recesses in the centre piece where they are held by upper and lower check pieces d, e.
Patent GB-423178-A (GB)
Title: Improvements in or relating to electric fusible cut-outs
IPC: H01H85/36
Filed: 1933-07-26
Abstract: 423,178. Fusible cut-outs. REYROLLE & CO., Ltd., A., Hebburn-on-Tyne, and CHRISTIE, J., 4, Sidecliff Road, Sunderland. July 26, 1933, No. 21028. [Class 38 (i)] A fuse is located within a pressure chamber having an orifice through which a stream of liquid is ejected when the fuse blows, to extinguish an arc formed in the orifice by a frangible coupling. The pressure chamber D, Fig. 1, is of metal and is free to slide in the container A, and is attached to the flexible lead H<2> and spring H<1>, the outlet orifice E<1> being at the upper end. A frangible disc J closes the orifice and forms the connection to the rod J<1>, and the contact C. The compression chamber may be fixed, the spring H<1> being then associated with the rod J<1>, or a compression chamber N<1>, Figs. 2, 3, may be used without an outer casing, being mounted directly on an insulator Q. The chamber has an outlet orifice N<3> closed by a frangible disc P to which is attached a contact P<2> connected to a flexible lead P<4> and spring P<3>. In order that the blowing of a fuse in one phase of a polyphase system shall also rupture the fuses of the other phases, the upper insulator R is pivotally mounted at R<3>, the tension on the lead P<4> supporting a counterweight R<5>. The arms R<4> of all phases rest upon a common crossbar S that is associated with a lever S<4>. Common cross-bars S' lie above and below the levers R<4> of all phases and are supported on a toggle S<3> against a powerful spring S<2>. When the lever R<4> of any phase is released it operates the lever S<4> and breaks the toggle S<3> so that the spring S<2> moves the levers R<4> of the other phases, rupturing the diaphragms P of the sound phases and withdrawing the contact P<2> from the sliding contact N<4> and allowing the spring O<3> to rupture the fuse O. The ensuing arc ejects the extinguishing fluid on to the arc formed in the orifice N<3>.
Patent GB-346238-A (GB)
Title: Automatic rapid-lowering device for the trolleys of electric vehicles
IPC: B60L5/32
Filed: 1930-07-11
Abstract: 346,238. Electric trollies. MASCHINENFABRIK OERLIKON, Oerlikon, near Zurich, Switzerland. July 11, 1930, No. 21041. Convention date, July 11, 1929. [Class 104 (iii).] Apparatus for quickly lowering a pantograph trolley when it meets an obstruction comprises a pair of bars 1, 2, cross-connected to levers 5, 6 mounted on shafts 3, 4. The lever 6 carries a sleeve 11 having two cam surfaces 9, 10 adapted to be engaged by rollers 13, 14 mounted in frames 12, 18 on the ends of the bars 1, 2. When the trolley meets a resistance in the direction of the arrow A, the pantograph 19, 20 turns the shafts 3, 4 anticlockwise so that the bar is pulled towards the right and the bar 2 is pushed towards the left. This causes the roller 13 to move along the cam surface 9 so that the bar 1 is moved laterally to bring a cam 28 against a rod 25 engaging a rod 30. Movement of the rod 30 releases a latch 31 and permits a spring 33 to expand and move a lever 34 connected to a valve 35 controlling the supply of compressed air to cylinders 41, 43. The air escapes from the cylinder 41 and a spring 44 moves the piston 47 to pull the trolley down through the link 49. To raise the trolley, the driver releases the air from the pipe 36, so that the air escapes from the cylinder 41 and a spring 45 moves the piston 50 to return the valve to the position in Fig. 1 and compress the spring 33. Air is readmitted to the pipe 36, and the cylinders 41, 43 become charged, so that the piston 47 compresses the spring 44 and raises the trolley.