baber/WOPTO huggingface dataset:
Patent GB-235046-A (GB)
Title: Improvements in and relating to rotor for electrical machines
IPC: H02K3/46
Filed: 1924-08-15
Abstract: 235,046. Regelein, W., Sameith, R.. and Thyssen & Co., Akt.-Ges. Aug. 15, 1924. Coils and conductors; pole-pieces.-In a rotor having coil-holders anchored in the core, keys I are located in the outer heads of the coil-holders 4 and when hammered in pull the coil-holders in a radial direction and tighten the rotor circumference without putting undue pressure on the coils. Filling-pieces 1<1> shaped like the keys may replace the latter over parts of the rotor circumference, for example, over the coils 2, the keys 1 being employed at the rotor poles only. Separate filling-pieces 8 are provided where necessary. The keys may be divided longitudinally and may be secured by screws 6, or by wedges driven in from opposite ends of the rotor.
Patent GB-314351-A (GB)
Title: Improvements in and relating to high voltage cable testing systems
IPC: G01R31/02
Filed: 1929-06-25
Abstract: 314,351. British Thomson-Houston Co., Ltd., (Assignees of Hubbard, H. S.). June 25, 1928, [Convention date]. Vapour and vacuum or low-pressure apparatus, arrangements of. - Apparatus for testing the insulation resistance of cables &c. by the application of a high direct-current voltage comprises an insulated transformer winding, a capacity load connected in series with the winding, and a vacuum tube rectifier connected between each end of the winding and the load. In the construction shown, the insulated secondary windings of transformers 18, 19 are connected in series through rectifying valves 20 - - 27 whereby a high voltage direct current may be applied to a cable, shown as a capacity 4. The voltage across each of the rectifiers 21, 22, 25, 26 adjacent to the transformers is equalized by balancing-condensers 28 - - 31 when two rectifying valves are connected to each end of the windings. In order to maintain the proper voltage distribution over the transformer, stabilizing condensers 32 - - 35 are connected either between one end or the centre of the secondary winding and earth, or in parallel with the secondary winding or in combinations of these arrangements.
Patent GB-742900-A (GB)
Title: Fibre forming polymers
Inventor: JONES EVAN ISLWYN
IPC: C08F261/04
Filed: 1953-07-15
Abstract: Shaped articles, such as films and filaments, are made by extruding into a coagulating bath a solution of a grafted polymer obtained by polymerizing acrylonitrile, alone or in the presence of small amounts of copolymerizable material, with more than 60 per cent, based on the weight of the shaped article, of a water-soluble polyvinyl alcohol. Copolymerizable monomers specified are vinyl acetate, esters of acrylic and methacrylic acids, vinyl chloride, styrene, isobutylene, and 2-vinyl pyridine. Polymerization may be carried out either batchwise or continuously in the presence of catalysts such as azo-diisobutyronitrile, benzoyl peroxide, hydrogen peroxide, or a persulphate, or a redox system such as a mixture of ammonium persulphate and sodium metabisulphite.  The polymerization medium may also contain sodium sulphate in order to obtain an easily filterable product, and sulphuric acid to produce an acid pH. The polymer solution is preferably extruded into a saline bath, e.g. saturated aqueous solutions of sodium dihydrogen phosphate, ammonium sulphate, or sodium chloride; filaments thus produced may be stretched and then insolubilized by treatment with aqueous formaldehyde at a pH of less than 3.
Patent GB-772115-A (GB)
Title: Magnetically-operated card index
IPC: B42F17/34
Filed: 1955-07-07
Abstract: 772,115. Filing papers: indexing tabs. CORY CORPORATION. July 7, 1955 [March 14, 1955], No. 19697/55. Classes 16 and 146(1). An index having a cover hingedly connected to a base and movable to an open position thereon and a plurality of index cards pivotally mounted in the cover, comprises magnetic selector means for selecting a desired one of the cards and carrying the card and the cards thereover with the cover to open position. Index cards 12 are mounted by slots 47 on supports 45, with peripheral flanges 46, secured to a cover 11 pivoted on a base 10 by means of a rod 25 having offset ends 26 projecting through the side walls 27 of the cover and upstanding brackets 28 on the base 10. Coil springs 29 at each end 26 bias the cover 11 and attached cards 12 to the open position A, the cover 11 being held in the closed position by a detent 31 engaged in a recess 32 in a cross bar 33 mounted by lugs 34 on the ends of spaced leaf springs 36 secured to the underside of the base 10 at 37, so that pressure on bar 33 releases the detent 31. A leaf spring 39 on a flange 41 of the cover 11 bears against the rod 25 to hold the cover 11 in position A. The cover 11 may be manually moved to position B for writing on the exposed face 42 of a card 12 held on the cover 11, a leaf spring 43 engaging the edge of the flange 41 to hold it in this position. Each card 12 is provided with a tab 13 to which is affixed a ferrous metal covering 14 secured by inturned flanges or in which is embedded a ferrous metal insert 14a, Fig. 10 (not shown) between laminations, the tabs 13 being staggered across the index for coupling in turn to a magnet 15 carried by a selector 16 movable across the index. The selector 16 is slotted at 17 to engage in a longitudinal slot 21 in a depending flange 22 forming the front wall of the cover 11, the selector 16 being operated by its outer knob 18. The magnet 15 is preferably rounded to facilitate the sliding across the tabs 13. To bring all the tabs 13 at about the same distance from the magnet 15, the cards 12 rest on a ledge 23 supported in an inclined position by a tapering bracket 24. The ledge 23 and base 10 are slotted to receive the supports 45 in the lowered position. A transparent member 53 may be mounted on the cover 11 to retain a strip with index markings 54 to register with the tabs 13 or the markings 54 may be applied direct to the cover 11. The cards 12 held on the cover 11 in the open position may be released in that position by moving the magnet 15 across the cover.
Patent GB-1379787-A (GB)
Title: Catalytic isomerization of 2-methyl-3-btenenitrile to linear pentenenitriles
IPC: B01J31/22
Filed: 1972-04-28
Abstract: 1379787 Isomerizing 2-methyl-3-butenenitrile E I DU PONT DE NEMOURS & CO 28 April 1972 [30 April 1971] 19789/72 Headings C2C and C2P A process of isomerizing 2-methyl-3-butenenitrile to produce at least one linear pentenenitrile comprises contacting 2-methyl-3-butenenitrile, at a temperature in the range of 0‹ to 250‹ C., with a complex having the structure Ni(PR 3 ) n , wherein "R" is selected from alkyl, aryl and substituted aryl groups having up to 18 carbon atoms and wherein the "R" groups in a given PR 3  may be cojoined and may be the same or different, and "n" is an integer having a value of 3 or 4, the mole ratio of 2-methyl-3-butenenitrile to complex being at least 1 : 1, and recovering the linear pentenenitrile. Free PR 3  is preferably also present as may be a metallic cation promoter or a boron compound promoter. The nickel complex may be preformed or formed in situ from a divalent Ni and a metallic or alkyl aluminium reducing agent, from an organonickel compound and PR 3  or from a zerovalent Ni complex of a sigma-pi-bonding ligand and PR 3 . Ni[P(C 6 H 5 ) 3 <SP>3</SP>] 3  is prepared from NiCl 2 .6H 2 O and P(C 6 H 5 ) 3  in acetonitrile dissolved in toluene and precipitated with ethanol. Ni[P(C 6 H 5 ) 3 ] 4  is obtained by treating the mother liquor with further P(C 6 H 5 ) 3 .
Patent GB-293741-A (GB)
IPC: G09F21/04
Filed: 1927-07-26
Abstract: 293,741. Engel, I. July 11, 1927, [Convention date]. Moving and changing apparatus; boards, travelling; reel and web apparatus; moving apparatus combined with vehicles; actuating; optical-projection apparatus, applications of.-In devices in which advertisements are displayed continuously and successively in the interior of public vehicles, the device is rotatable so as to be visible in turn from different directions. The Specification as open to inspection under Sect. 91 (3) (a) describes also display devices, the movement of which is effected by the power of the lighting equipment, by independent accumulators, by clockwork, by the engine, or by other moving parts of the vehicle. The advertisements may be on endless or non-endless bands, or on independent sheets turning over like the leaves of a book, or dropping vertically through a slot, and may be seen by reflected or transmitted light, or by optical-projection. This subject-matter does not appear in the Specification as accepted.
Patent GB-327351-A (GB)
Title: Improvements in securing means particularly suitable for use in connection with the bonnets of motor road vehicles
IPC: E05B65/19
Filed: 1929-06-27
Abstract: 327,351. Macrae, R. S. June 27, 1929. Hook fastenings. -A wire coil 3 which is mounted on a part 1 is rotated by a knob 8 to engage an eye 19 attached to a part 2. The coil is adjustably secured in a hole 6 of spindle 5 by a collar 11 and a nut 12. The part 1 is bushed and a shoulder 7 on the spindle is pressed against the head 25 of the bush by a spring washer 13<1> between the collar 11 and a nut 10 which secures the bush 4. The eye 19 is carried by a spring-pressed plunger, the stem 18 of which is adjustable in length. The plunger slides in a cylinder 13, which is carried on a sloping bracket 22. The cylinder head 20 has a diametrical slot to receive the eye 19 and the coil 3 is notched at the place where the eye 19 normally rests.
Patent GB-1498534-A (GB)
Title: Detergents
IPC: C11D1/14
Filed: 1975-03-12
Abstract: Detergent which is in the form of a powder and contains 5 to 35 % by weight of alkane sulphonates, 2 to 10 % by weight of alkali metal silicates and/or alkaline earth metal silicates and 5 to 75 % by weight of condensed alkali metal phosphates and/or amino polycarboxylic acids. The alkali metal silicates used have an Na2O:SiO2 ratio of less than 1:3.5. The use of the said specific alkali metal silicates makes it possible to produce dry, non-sticky detergents which are in the form of a powder and contain alkane sulphonates.
Patent GB-1045655-A (GB)
Title: Casting resins
Inventor: WENDE ALFRED
IPC: C08L67/00
Filed: 1965-05-11
Abstract: Casting resins based on unsaturated polyesters by hardening with conventional cross-linking agents in the presence of organic per oxides are characterized in that the polyester contains 5 to 80% of a reaction product of maleic anhydride with esters of mono- and/or polyhydric alcohols with unsaturated carboxylic acids, the carbon chains of which are straight or branched and contain from 8 to 30 carbon atoms, and/or with naturally occurring mixtures of preponderantly unsaturated fatty acid triglycerides. The reaction product of maleic anhydride with the said carboxylic acid esters may be hydrogenated before incorporation into the esterification mixture. As well as synthetic carboxylic acid esters there may be used mixtures of fatty acid triglycerides from naturally occurring materials such as tung oil, castor oil, soya oil, oiticica oil and linseed oil, to form the reaction products with maleic anhydride. These reaction products can be carried out before the production of the polyesters or can be carried out at the same time as the production of the polyesters and in the same reaction vessel.  In the examples the maleic anhydride reaction products are formed by reacting maleic anhydride with tung oil or oiticica oil and the polyesters are formed from maleic anhydride and 1,3-butylene glycol.
Patent GB-1013399-A (GB)
Title: Motor vehicles with tiltable cabs
Inventor: NIXON ANTHONY
IPC: B62D33/07
Filed: 1964-05-13
Abstract: 1,013,399. Catches; studs and sockets. FORD MOTOR CO. Ltd. May 13, 1964, No. 19889/64. Headings E2A and E2B.  In a motor vehicle having a cab adapted to be tilted to facilitate access to the engine or other components of the vehicle, the cab is adapted to be held in its untilted position by a releasable fastening mechanism comprising two interengageable members 5, 6, one member being mounted on the cab and the other on the chassis of the vehicle, the member 5 being rotatable by movement of a lever 9 about a first axis to engage the member 6 when the cab is in its untilted position, and the lever 9 being rotatable about a second axis to draw the cab firmly down on to the chassis. In the embodiment shown the member 6 is a socket mounted on a crossmember 4 of the vehicle chassis, and having a discontinuously threaded hole which receives a correspondingly discontinuously threaded end portion of a bolt constituting the member 5. The member 5 is mounted for limited axial movement on a cross-member 2 of the cab and has pivoted to its upper end a channel section lever 9. When the cab is in its untilted position and the lever 9 is upright the bolt 5 enters the socket 6 and rotation of the lever about the axis of the bolt to the position shown in dashed lines causes interengagement of the threaded portions. Rotation of the lever 9 through 90 degrees to the position shown in full lines causes camming surfaces 9a thereon to force a collar 13 and washer 14 on the bolt into contact with the member 2, which is thus drawn downwardly against rubber cushioning members 3 on the chassis. The lever 9 is held in the full line position by a clip 16. To release the cab from the chassis the above sequence of operations is reversed. A spring-loaded hook 17 passing through an aperture 22 in the member 2 acts as a safety catch, and is released by a rod 20 operated from outside the cab.
Patent GB-803150-A (GB)
Title: Improvements in organosilicon dielectric materials
IPC: C08K5/32
Filed: 1956-06-27
Abstract: A dielectric liquid comprises an organosiloxane oil and as stabilizer from 0.01 to 5.0 per cent by weight of a compound having the structure <FORM:0803150/IV (a)/1> where R and R1 are each an aryl or substituted aryl group and n is 0 or 1.  Siloxanes specified contain silicon-bonded alkyl, alkenyl, cycloalkyl, aryl, alkaryl, aralkyl and heterocyclic radicals, and may also contain halogen substituents. In examples, a dimethyl silicone oil is stabilized with (2) azobenzene, (3) azoxybenzene, (4) phenyl-azo-2-naphthol and (5) a methylsubstituted azobenzene-4-azo-2-naphthol.
Patent GB-583859-A (GB)
Title: Improvements in aircraft with a sustaining propeller on a vertical axis
IPC: B64C27/04
Filed: 1943-11-30
Abstract: 583,859. Helicopters. POAL, C. B. V. D E. Nov. 30, 1943, No. 19983. Convention, date, Dec. 1, 1942. [Class 4] A helicopter is provided with two auxiliary propellers 7, 8 rotating in vertical planes, one at the front and the other at .the rear of the longitudinal axis of the aircraft, the propeller shafts being mounted upon vertical shafts 15, 16, which may be turned about their axes to vary the planes of rotation of the propellers, in order to balance the reaction torque of the lifting rotor 4 and to provide propulsion and control forces. The thrust of one propeller acts outwardly and that of the other inwardly, and by suitable disposition of the planes of rotation the aircraft may be moved horizontally in any desired direction. The propellers which are driven by the main engine 2 through pulleys and cables 5, may be of fixed or variable pitch, control in the latter case being either manual or automatic.
Patent GB-202977-A (GB)
Title: Improvements in regenerative air or gas preheaters
IPC: F23L15/02
Filed: 1923-08-07
Abstract: 202,977. Aktiebolaget Ljungstr÷ms Angturbin. Aug. 23, 1922, [Convention date]. Regenerators.-In a regenerator of the. rotary type in which the regenerative material consists of plates forming channels for the gases, the plates are constructed and arranged to form channels extending in a direction parallel with the axis of the rotor. The plates may be bent as shown in Fig. 1 to form channels 6 with intermediate flat plates 5 or the flat plates may be omitted so that the bent plates are arranged side by side to form the channels. According to Fig. 2, channelled plates 8 are connected, for instance, by welding, to a plate 9 and the elements so formed are arranged side by side with the plates 9 directed towards the channels. Alternatively, the channelled plates 8 may be welded to both sides of the plate 9 and the elements so formed may be used with intermediate flat plates. Fig. 4 shows another form of bent plate which is used without intermediate flat plates,.while Figs. 5 and 6 show other forms for use with intermediate flat plates. Various forms of corrugated plates with or without intermediate flat plates may also be employed. The plates are smaller in height than 'the rotor and are retained in position by two or more transverse supports. Specifications 162,250 and 192,353 are referred to.
Patent GB-387681-A (GB)
Title: Improvements in or relating to the manufacture of water gas or producer gas
IPC: C10K1/04
Filed: 1931-05-22
Abstract: 387,681. Condensing and scrubbing processes. ODELL, W. W., 61, Broadway, New York, U.S.A. May 22, 1931, No. 20208/32. Divided application. [Class 55 (ii).] Water gas or producer gas is cooled to between 800-110‹ F. and sprayed with oil or oil-like material in amount greater than that of the suspended carbon black, tarry matter, &c. present so as to coalesce the oil droplets with the suspended impurities. Water gas from a generator 1 employing bituminous coal or other fuel emitting tarry matter is sprayed with cooling fluid from a pipe 17 and with oleiferous material through nozzles 20, 21 in a pipe 27 connecting the generator offtakes with a wash-box 10. A spray 26 in the wash-box offtake may be employed together with or instead of sprays 20, 21. The oily material may be a tar oil yielding no distillate below about 185‹ C. Specification 20964/13, [Class 55 (ii), Gas manufacture &c.], is referred to. Reference has been directed by the Comptroller to Specifications 26262/05, [Class 55, Gas manufacture], and 347,240.
Patent GB-1513464-A (GB)
Title: Electrostatic powder coating device
IPC: B05B7/14
Filed: 1975-05-14
Abstract: 1513464 Fluid regulation CONTINENTAL GROUP Inc 14 May 1975 [23 July 1974] 20228/75 Heading G3H [Also in Division B2] An electrostatic powder coating device, e.g. for coating a beer can, comprises a cylindrical housing 11 having an inlet 18 and outlet 20 for powder-air mixture, a tangential inlet 21 for pressurized air for directing the mixture along a circular path to the outlet, and an axial inlet 35 for pressurized air for directing the mixture axially through a further outlet 38. The latter communicates through a Venturi tube 40 with a discharge head 53 of a powder gun 47 located adjacent the article. The powder is electrostatically charged via a conductor 54. Pump 26 supplies pressurized air continuously through valve 28 to powder source 31 and to inlet 21 but flow of the pressurized air to the inlet 35 for creating a discharge at the head 53 can be turned on or off at will by the valve 28. The mixture from outlet 20 is returned to source 31 as shown, this flow being augmented by an exhaust pump (not shown). The latter may be connected to a hood adjacent the article to draw off any surplus powder. The housing includes a pair of plates 12, 13 which may be transparent.
Patent GB-443081-A (GB)
Title: Improvements in and relating to heaters for liquids
IPC: F23N1/08
Filed: 1935-07-16
Abstract: 443,081. Hot-water delivery arrangements. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(Junkers & Co., Ges.; 35, Junkersstrasse, Dessau, Anhalt, Germany) July 16, 1935, No. 20271. [Class 64 (i)] [See also Group XXIX] In a liquid heater with a differential pressure operated valve 25 in the cold water inlet pipe 13 controlling the supply, a cold water branch 23 byepassing the heater and delivering cold water direct to a mixing device in the outlet 20 is connected with the water supply at a point between the control valve and the device 17 producing differential pressure for actuating the valve. Water entering at 13 is heated in a gilled pipe 21 by gas supplied through a valve 7 loaded by a spring 6 and connected by a rod 5 to a diaphragm 4 carrying an apertured piston valve 25 sliding in a fixed sleeve 27 apertured at 26 and carried on the valve casing 3. Between the piston valve 25 and a choke member 17 in the cold water inlet pipe 14 is a branched cold water pipe 23 connected through a tap 22 with the hot water outlet 20. The chamber 18 above the diaphragm 4 communicates through a passage 28 with the pipe 14. A choke 30 larger than the choke 17 may be placed in the pipe 23 to prevent cold water from flowing exclusively therethrough.
Patent GB-780545-A (GB)
Title: Improved polyalkylene polysulphide compositions
IPC: C08L81/04
Filed: 1955-07-13
Abstract: The thermal stability of a composition containing a polyalkylene polysulphide and a curing agent is improved by addition of a small proportion of a particulate inorganic anhydrous water-accepting substance which retains picked-up water up to a temperature of 350 DEG  F. and which does not degrade the polymer.  Specified substances are calcium, strontium and barium oxide and the anhydrous sulphates of calcium, zinc and cadmium. Suitable polysulphides are described in U.S.A. Specification 2,402,977 and are available as "Thiokol LP" (Registered Trade Mark).  The compositions are usually sold in two parts to be mixed just before use, one containing the polysulphide which preferably has terminal mercaptan groups, and the other the curing agent which may be a peroxide, persalt, polysulphide or aldehyde. Conventional additives, e.g. inert fillers such as carbon black, titanium dioxide, calcium carbonate, calcium silicate, or barytes, curing controllers such as stearic acid, plasticisers such as dibutyl phthalate and thinners such as xylene may be included in the compositions.  Tackifier resins, e.g. a liquid or solid epoxy resin or a phenol aldehyde resin may also be included in minor proportions and one of the compositions given as an example also includes a little sulphur.  Reference has been directed by the Comptroller to Specification 633,416.
Patent GB-413495-A (GB)
Title: Improvements in or relating to egg trays
IPC: B65D85/32
Filed: 1933-07-19
Abstract: 413,495. Egg trays. STILL, F. E., and UNITED DAIRIES (LONDON), Ltd., Superity House, Western Avenue, Acton, London. July 19, 1933, No. 20391. [Class 18.] An egg tray comprises a rigid, e.g. wood, shell 10 with metal brackets 12 on the outer faces of the corners, the brackets extending above the top or below the bottom of the tray and being spaced from the walls to facilitate stacking. A filler 16 of paper, cardboard, &c. is provided, and the hand-holes 17 in the sides are formed above the top of the filler.