baber/WOPTO huggingface dataset:
Patent GB-452461-A (GB)
Title: Improvements in or relating to electro-magnetic relays or interrupters
IPC: H01H1/34
Filed: 1935-06-20
Abstract: 452,461. Electromagnetic interrupters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ROSE, W. R., c/o General Electric Co., Ltd., Stoke, Coventry. June 20, 1935, No. 17686. [Class 38 (v)] In an electromagnetic vibrator type relay or interrupter having an operating coil, an armature carried on a spring and a flat contact - making spring or springs, the said springs forming a unitary assembly which is fixed as a whole to the framework of the relay, adjusting means is provided to form part of the contact and armature spring assembly, the said adjusting means comprising a screw provided with a conical portion engaging an insulated stud on a contact spring, this screw co-operating with a thread in a hole formed in a split rectangular member inserted as part of the contact and armature spring assembly. As shown in the Figure the contact and armature structure comprises a blade spring 11 carrying an armature on one side and a contact tip on the other, the latter co-operating with a relatively fixed contact tip on a blade spring 12. The blade spring 12 is adjusted by having an insulating stud 65 bearing against a conical portion 16 of an adjusting screw entering the bifurcated end of a block 13. The two blade springs together with interposed insulating plates 10 and a spacing block form a unitary structure which is held together by the outer pair of the screws 7 engaging screwed holes in the block 9, the structure thus formed being attached by the central screw 7 to a flat permanent magnet 8 forming part of the magnetic circuit, which includes a yoke piece 3, core 2 and polar extension 5. The armature is arranged to vibrate between the extension 5 and the free end of the magnet 8 the energizing coil 1 being connected in series with the interrupter springs so that a self-interrupting action is obtained. An A.C. may be derived from a separate coil on the same core as the operating coil or from a tappng on the latter. Specification 433,906 is referred to.
Patent GB-297169-A (GB)
Title: Improvements in or relating to electric switches and the mounting thereof in wireless inductance coils and the like
IPC: H01H19/56
Filed: 1927-07-04
Abstract: 297,169. Williams, T. E. July 4, 1927À Inductances. - An inductance coil 15 is wound over a portion of a tubular carrier or former 11, the remainder of the length of which carries terminals or plugs or other devices for connecting in circuit one or more other coils; and the connections of the coils are controlled bv a switch arranged within the tube or former. The terminals, plugs &c. are connected to spring fingers 18 which extend within the fonner or tube and are engaged in pairs by contacts 24 mounted on a rod 14 rotated by a handle 22. The Figures show a former 11 consisting of an insulating tube of hexagonal section. In a modification (Figs. 6 and 7, not shown), the former comprises a cage made of six rods arranged hexagonally.
Patent GB-120653-A (GB)
Title: Improvements in or relating to Rotors for Dynamo Electric Machines.
IPC: H02K3/51
Filed: 1917-11-30
Abstract: 120,653. Vickers, Ltd., and Barclay, S. F. Nov. 30, 1917. Coils.-The end bell which holds in place the coils of a dynamo-electric machine such as a turbo - alternator consists of a disk 7 fitted on to the end of the core of the rotor and a cylindrical portion 6 fitting over the coils 5, the two portions 6 and 7 being made in one piece, and an air gap being left between the portion 6 and the core of the rotor so as to reduce magnetic leakage. The disk 7 is held in place by a nut 8, and is of sufficient internal diameter to pass over the slip-ring 9 to which the coils are connected by conductors 10 retained bv wedges 11 as described in Specification 116,577. The seating on which the disk 7 rests is fluted to provide passages for air which is driven through them by blades 14 attached to the disk 7. When the invention is applied to rotors with concentric windings, the centrifugal load on which increases with the distance from the core, the cylinder 6 may be furnished with an endpiece of non-magnetic metal which bridges the gap between it and the rotor core.
Patent GB-1109195-A (GB)
Title: Preparation of dibenzocycloheptene derivatives
IPC: C07C23/38
Filed: 1966-04-25
Abstract: 5 - (3 - Halopropyl) - 5H - dibenzo[a,d]cycloheptenes and 5-(3-halopropyl)-10,11-dihydro-5H-dibenzo[a,d]cycloheptenes are prepared by reacting 5-alkali metal derivatives of 5H-dibenzo[a,d]cycloheptenes and 10,11-dihydro-5H-dibenzo[a,d]cycloheptenes respectively with a 1,3-dihalopropane.  5 - Potassio - 5H - dibenzo[a,d]cycloheptene and 5 - potassio - 10,11 - 5H - dihydro - 5H - dibenzo-[a,d]cycloheptene are prepared, as diethyl ether solutions, by reaction of potassium with 5H-dibenzo[a,d]cycloheptene and 10,11-dihydro-5H-dibenzo[a,d]cycloheptene, respectively.
Patent GB-286145-A (GB)
Title: Improved frame or holder for reels of cotton and other thread
IPC: B65H49/14
Filed: 1927-07-08
Abstract: 286,145. Rowe, A. E. July 8, 1927. Reel holders. - A holder for reels of cotton or other thread is constituted by wire or strip wood frameworks assembled to form a bottom and four sides and carries a removable spindle c upon which the reels are threaded, the threads passing out through holes in the front and past a rubber covered thread guide i. The holder is suspended by a loop b.
Patent GB-296661-A (GB)
Title: A process for the production of imitation leather
IPC: D06N3/00
Filed: 1928-06-22
Abstract: 296,661. Katz, E. Sept. 3, 1927, [Convention date]. Ornamenting. - Artificial leather, particularly artificia1 antique leather, is made by dressing or finishing a fabric, with dressing medium containing starch, ca1endering under high pressure, applying dye such as aniline dye, by means of sponges, sponge-ro11ers, or by squirting, to produce an indistinct design, and drying. The fabricis then treated again with dye, preferably of a darker tone than the first colour, and again dried. This treatment may be repeated, the fabric being finally calendered. Any ornamentation or grain may then be impressed on the material in known manner.
Patent GB-694613-A (GB)
Title: Process for manufacturing joists consisting of hollow units, for ceilings and the like
IPC: E04C3/22
Filed: 1951-07-31
Abstract: 694,613. Floors; reinforced blockwork beams. RICHARD, G. N., and FLECHET, M. J. J. July 31, 1951 [Aug. 25, 1950; March 16, 1951; April 6, 1951; July 4, 1951; July 4, 1951], No. 18161/51. Class 20 (iv). In a floor construction which comprises reinforced blockwork beams laid side-byside or in spaced parallel relationship, the beams consist of hollow core units placed end-to-end so that channels formed longitudinally in the upper surface and through the lower part of each unit are aligned, the units also being formed with vertical recesses in their abutting end faces so that vertical channels are formed which connect the longitudinal channels together, the channels and recesses being filled with reinforced concrete which forms a runged girder within the beam. In the form shown, each hollow core unit is made in two parts, a lower part 13 having a top channel 16 and outwardly projecting longitudinal flanges 15 and an upper part 14 with a top channel 17, longitudinal shoulders 21 and end recesses 18 to form the joist, the lower parts 13 are aligned and a reinforcing bar 7 placed in channels 16, vertical straps 9 being supported from bar 7 above the joint between the parts 13. The upper parts 14 are placed on parts 13 and a bar 8 positioned in channels 17, the straps 9, which pass up through the co-operating recesses 18, being joined to bar 8. Concrete is filled into the channels and recesses, and, when set, forms a ladder-like girder which extends throughout the length of the beam. Fig. 5 shows two forms of floor incorporating beams made in this way. At the left side of the figure is shown a girder floor wherein the beams are arranged side-byside and reinforced concrete 23, 25 cast between and over them. At the right hand side is shown a floor wherein the joists are spaced apart, filler blocks 19 and 20 resting on the flanges 15 and shoulders 21 of the units and concrete 25 being cast over the whole to complete the floor.
Patent GB-388278-A (GB)
Title: A helical needle device for the mechanical sewing of sacks of packing canvas
IPC: D05B13/00
Filed: 1932-06-27
Abstract: 388,278. Sewing-machines. PIENS, L., 13, Rue Bonne-Nouvelle, Tourcoing, France. June 27, 1932, No. 18186. Convention date, June 26, 1931. [Class 112.] Running-stitch machines.-The helical needle A, Figs. 3 and 4, is grooved as at b, Fig. 3, with the outer wale of the groove higher than the inner, and is frictionally driven by rollers D having ribs or threads h extending between the turns of the needle and formed on one side with a bevel i to assist liberation of the thread during sewing. As shown, the needle A may be driven by three rollers D of which one is adapted to be raised and lowered about an axis F into driving position to exert a driving pressure by its own weight or through a system of springs. Fabric M to be sewn may be placed on a table G having notches g on its front edge corresponding to the pitch of the needle turns, or it may be fed between two endless bands each formed by elements having notches for the passage of the needle.
Patent GB-1349076-A (GB)
Title: Vehicle crash barrier rail
Inventor: GLAESENER E
IPC: E01F15/04
Filed: 1971-05-28
Abstract: 1349076 Roadside crash barriers ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE SA 28 May 1971 [29 May 1970 (2)] 18190/71 Heading E1G A lightweight bend-resistant crash barrier rail is formed from end-connected lengths 11, Fig. 5, each comprising an inverted-U or other sheet metal casing 12 - e.g. of galvanised steel - providing spaced side walls, and a filling of plastics (e.g. polyurethane) foam which bonds with the metal, the rail being seated around and optionally bonded to posts 17. Each post comprises sheet metal 18, Fig. 7, cladding a timber or foam plastics filling 22, the lower end being tapered, Figs. 2, 4 (not shown) and reinforced at the tip by inward folding (21) of the sheet metal. Each rail length may be prefabricated with a foam filling 24 which is omitted at certain locations - e.g. by means of transverse partitions - to facilitate post mountings and end connections, any cavities being filled in situ with plastics foam. Figs. 5 and 7 (an underneath view) show a butt-joint end connection at a post, using bonded-on metal wrapping 25, transverse straps 28 and in-situ foam 27 between rail-end partitions 23. In a modification, Fig. 6 (not shown), a rail length is prefabricated with a bonded-in sheet metal pocket (34) shaped to fit loosely over a post. Rail lengths may be interconnected between posts, Figs. 8 or 9 (not shown) by deforming the sheet metal casings to allow interfitting and adhering together.
Patent GB-922752-A (GB)
Title: Lithographic printing plate prepared by electrophotographic reproduction and a method for its production
IPC: B41N3/08
Filed: 1960-05-24
Abstract: 922,752. Lithographic printing plates. PLASTIC COATING CORPORATION. May 24, 1960 [June 18, 1959], No. 18200/60. Drawings to Specification. Class 98 (2). A lithographic printing plate comprises a base sheet, for attachment to the plate cylinder of a lithographic printing press, and carries on its outer surface a photoconductive, finely divided inorganic pigment in a matrix of a film-forming and insulating material which carries on predetermined image areas fuser tones for developing the image and forms a film of hydrophobic material which is wettable by a lithographic ink; the non-image areas are rendered hydrophilic by applying to them a dilute aqueous solution of a water-soluble film-forming material having free carboxyl groups. The pH of the latter solution is preferably between 3.0- 7.25. The base sheet which is electrically conducting may comprise a sheet of paper or plastic (various examples given) coated with film of casein-clay impregnated with an hydroscopic salt e.g. zinc chloride, lithium chloride, potassium acetate, calcium chloride, zinc nitrate, potassium carbonate or a film of clear lacquer containing finely divided graphite, aluminium, copper, bronze, litharge, tannic oxide, copper sulphite, silver sulphite or carbon black or a thin metal film. A thin film of a copolyester of ethylene terephthalate and ethylene sebacate may be used to promote the adhesion between a plastic base and a metal film. The film-forming insulating matrix may be styrenated alkyd copolymer resin. The material applied to the non- image area may be the complex, inorganic salt oxalate or chromic acid. Specifications 907,909 and 922,753 are referred to.
Patent GB-275584-A (GB)
Title: Improvements in or relating to the production of alternating currents and in alternating current motors
IPC: H02K19/34
Filed: 1927-07-08
Abstract: 275,584. Kohorn zu Kornegg, O., Freiherr, von, (trading as Kohorn & Co., O.), Perl, A., and Deschmann, H. Aug. 5, 1926, [Convention date]. Systems depending on two or more machines; running generators in series; dynamos and motor combined for transmitting power.--Induction motors are operated either synchronously or asynchronously by supplying the stator windings with three-phase current in which the current in each phase is in the form of a surge as indicated in Fig. 3. The stator windings s, Fig. 6, may be either star or delta connected, and the rotor is provided with a single-phase winding w either short circuited or completed through slip rings connected to an external resistance. A multiphase rotor winding may be used if the impedances of the phases are made unequal. Stator and rotor may be interchanged. Supply current having the required characteristics may be obtained by connecting in series two three-phase generators producing currents of different frequencies, or by exciting a generator by means of a pulsating current.
Patent GB-563049-A (GB)
Title: Electric water heater
IPC: F24H3/00
Filed: 1942-12-28
Abstract: 563,049. Electric water heaters. RUSH, H. A. Dec. 28, 1942, No. 18386. [Class 39 (iii)] An electrode element for heating water, e.g. in a radiator, comprises an insulating plug 12 threaded into the radiator shell 10, which carries an electrode 15 within a tubular electrode 17 mounted on a projection 16 of the plug. The electrode 17 is slotted at 24 to promote circulation. The electrodes are made of an iron alloy which is non-magnetic and contains the iron in austenitic form, e.g. an iron alloy containing carbon over .08 per cent, chromium 16-26 per cent ; and nickel 8-21 per cent. The current supply may be controlled by a thermostat in the upper part of the radiator.
Patent GB-1485413-A (GB)
Title: Plastics fasteners
IPC: E05C3/30
Filed: 1974-04-26
Abstract: 1485413 Latches ITW Ltd 25 April 1975 [26 April 1974] 18446/74 Heading E2A A resilient plastics latch unit Fig. 1 comprises: a button 20; a body portion 26 hinged at 32 to the button; a further body portion 24 hinged at 14 to portion 26; and a latch 16 hinged to the body portion 24; wherein, in use, Fig. 2, the body portions are folded together and inserted in a hole (not shown) e.g. in a glove-box door, in which they are retained by barbs 28, 30 and flanges 10, 12, and the button 20 is folded into the body portions to that (i) a stepped shoulder 31 of the button engages the flange 10 to prevent unfolding of the button, and (ii) a cam surface 22 of the button engages a cam surface 18 of the latch 16 to operate the latch which is biassed to bear against an abutment (not shown) in the surrounds of the glove-box door.
Patent GB-403316-A (GB)
Title: Hydraulic safety device for preventing too high speeds of internal combustion engines
IPC: F01L1/00
Filed: 1933-06-29
Abstract: 403,316. Fuel - injection pumps. SCHAEREN, E., 38, Florastrasse, Solothurn, Switzerland. June 29, 1933, No. 18488. [Class 102 (i).] A fuel-injection system comprises a feed pump f delivering through a check valve b to the suction pipe g of the fuel injection pump. The check valve b is loaded on the upper side by the delivery pressure of the feed pump and on the lower side by the suction of the feed pump through the pipe o and also by the spring c. When the engine speed rises above a predetermined limit, the valve b is closed, cutting off the suction to the fuel injection pumps. A valve l is fitted between the feed pump delivery pipe m and the suction pipe o.
Patent GB-271286-A (GB)
Title: Improvements in sleepers for portable railways
IPC: E01B23/04
Filed: 1926-07-24
Abstract: 271,286. Meredith, A., and Cropper, J. C. July 24, 1926. Sleepers, metal, and securing rails thereto ; creeping of rails, preventing.-Rails c are secured to sleepers a by a fixed clip d and a pair of clips g on an horizontal pivot f, each clip g having an incline j and a curved face k, one face k being nearer the pivot than the other so that one end of the clip will engage over the rail flange while the other end will engage slots l in the flange. The clips are retained by a lock-bar n on a vertical pivot m, the lock-bar having a curved upper surface. The sleeper is of inverted-channel section and is depressed at b to seat the rail and at e to seat the pivot f, an upper piece h being riveted on to retain this pivot.
Patent GB-624835-A (GB)
Title: Improvements in or relating to steering tubes and fork heads for bicycles, tandems and the like
IPC: B62K21/18
Filed: 1947-07-11
Abstract: 624,835. Cycle steering heads. VALAT, L. July 11, 1947, No. 18503. Convention date, July 13, 1945. [Class 136 (iii)] In steering tubes and fork heads for bicycles, tandems and the like the ordinary steering tube b is reinforced by two longitudinally split D-section semi linings a placed back-to-back to create a radial and axial reinforcement. As shown each semi lining a is split longitudinally at a 2  and thus has an elasticity which assures a good fit in the tube b. 'The linings are fitted back to back with the straight webs a<SP>3</SP> of the D-sections in a plane perpendicular to the longitudinal axis of the fork head c. Enlarged parts e are provided for the passage of a bolt securing the brake or mudguard. The end of the tube b is closed by a sealing plug.
Patent GB-651165-A (GB)
Title: Improvements in or relating to the preparation of ª†-methyl-mercapto-ª‡-aminobutyricacid
Filed: 1948-07-10
Abstract: Methionine is obtained by reacting a -amino butyrolactone with sodium methyl mercaptide at between 150 DEG  and 200 DEG  C. and recovering the free acid from the resulting sodium salt.  The lactone may be added to a suspension of the sodium methyl mercaptide in an inert solvent and the product formed then heated at 150 DEG  to 200 DEG  C. Free methionine may be obtained from the sodium salt formed by dissolving the latter in water and acidifying, e.g. with acetic acid to a pH value of 7.  In examples: (1) a mixture of the reactants is heated to 180 DEG  C. in an oil bath and after cooling the product is dissolved in water and acidified to a pH of 7 with acetic acid to yield methionine; (2) a -amino butyro lactone is added to a suspension of the mercaptide in xylene at 40 DEG  C.  A hard product is formed and after filtering off the xylene the residue is heated at 185 DEG  C. in an oil bath.  The melt is then dissolved in aqueous methanol and acidified with acetic acid as in (1) to form methionine.
Patent GB-1236740-A (GB)
Title: Tertiary alkylated diphenylamines and their uses as antioxidants
Inventor: HOLT BRIAN
IPC: C09K15/16
Filed: 1969-04-11
Abstract: 1,236,740. Tertiary alkylated diphenylamines. GEIGY (U.K.) Ltd. 13 April, 1970 [11 April, 1969], No. 18617/69. Heading C2C. [Also in Divisions C3 and C5] The invention comprises compounds of the Formula (I) where R<SP>1</SP> is a tertiary alkyl C 4-12  radical, R<SP>11</SP> is a hydrogen atom or a straight or branchedchain alkyl C 2-4  radical and R<SP>111</SP> is a straight or branched-chain alkyl C 2-4  radical. They are prepared by ortho-alkylating diphenylamine with a straight or branched-chain C 2-4  olefin in the presence of a catalyst comprising aluminium and reacting the ortho-alkylated diphenylamine thus formed with a secondary C 4-12  olefin in the presence of a Bronsted acid or a Friedel-Crafts catalyst. When R<SP>1</SP>=R<SP>111</SP>= t-C 4 H 9  and R<SP>11</SP>=H or t-C 4 H 9 , the compound of Formula (I) may be prepared by reacting diphenylamine with isobutylene in the presence of a Bransted acid or a Friedel-Crafts catalyst. The compounds of Formula (I) act as antioxidants for example to aldehydes, e.g. nheptaldehyde and unsaturated fatty acid esters, e.g. methyl oleate and vicinoleic acid.
Patent GB-1467255-A (GB)
Title: Internal combustion engines comprising fuel vapourising devices
IPC: F02M31/18
Filed: 1973-04-19
Abstract: 1467255 Vaporizing I.C. engine fuel charge SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 17 April 1974 [19 April 1973] 18888/73 Heading F1B [Also in Division F3-4] Mixture to be supplied to an I.C. engine is heated by condensation of the vapour phase of a heattransfer fluid, e.g. 2- octanol, decane, tetralin, water or a mixture of water and one or more of methanol, ethanol and ethylene glycol, having a boiling point at atmospheric pressure up to 400 C, preferably 60 to 300‹C, in a pipe 10 or a plurality of pipes. The liquid phase of the fluid is heated by engine exhaust gases. The heated mixture comprises at least the major part of the combustion air supplied to the engine and a minor part of the combustion air may flow through a passage 29 by-passing the portion of the main air passage 24 which is supplied with fuel upstream of the pipe 10 by a carburetter or by fuel injection. The pipe 10 may be heated at engine starting by an electric heater or a petrol blowlamp (48), Fig. 4 (not shown). The blowlamp gases pass through a turbular boiler (52) in the pipe 10 and operate until the pipe reaches its operating temperature heated by the engine exhaust gases. The pipe 10 may be cooled by the engine cooling liquid in a chamber 30 or a honeycomb or multitubular condenser. The condensed fluid may be returned to the liquid in the pipe 10 by a return line which does not contact the zone of the pipe transferring heat to the mixture or the rising vapour in the pipe. The effective cooling of the pipe 10 may be regulated by a non-condensable gas 32, e.g. air, nitrogen, helium, argon, krypton or neon, in the pipe. The non-condensable gas may be separated from the heat-transfer fluid by a piston or a stainless steel or rubber bellows (41, Fig. 4). The heat-transfer fluid may act on a spring-biased piston to regulate cooling. The flow of engine exhaust gases past the pipe 10 may be regulated by a valve (47, Fig. 4) opening an alternative exhaust gas flow passage (46). The exhaust gas control valve may be operated in accordance with the position of a throttle in the air or fuel supply systems, exhaust gas temperature sensed by a bi-metallic  strip of the pressure in the pipe 10 sensed by a piston or bellows subject to the vapour in the pipe. The combustion air may be supplied by a supercharger and the mixture may be heated by an electrical resistance heater or engine starting until the pipe 10 reaches its operating temperature. An adjustable air bleed valve may be provided near the inlet of each cylinder of an engine supplied with the heated mixture. A starting carburetter may supply the mixture at engine starting prior to operation of a main carburetter or fuel injection system when the pipe reaches its operating temperature.
Patent GB-1199265-A (GB)
Title: Corrosion-Resistant Uranium
IPC: G21C3/60
Filed: 1969-04-14
Abstract: 1,199,265. Modifying uranium surfaces. UNITED STATES ATOMIC ENERGY COMMISSION. April 14, 1969 [May 14, 1968], No. 18953/69. Heading C7U. Uranium is formed with an oxide film which is non-wettable by water and decreases in oxygen content from the outer surface of the film to its inner surface by heating the uranium to 500 to 665 C. in a vacuum and then contacting it with dry oxygen. The uranium may be first degreased and cleaned in e.g. nitric acid.