baber/WOPTO huggingface dataset:
Patent GB-417762-A (GB)
Title: Improvements in machines for continually twisting profile wires
IPC: E04G11/22
Filed: 1934-03-12
Abstract: 417,762. Twisting wire. WHIST, G.L., 22, Dronningensgate, Oslo, Norway.-(Assignee of Christiania Spigerwerk.) March 12, 1934, Nos. 7788 and 7789. Convention dates, Dec. 22, 1933 and Jan. 19, 1934. [Class 83 (iv).] Wire 1 for nail-making is fed from a spool through fixed guide rollers 5 which hold the wire against rotation to twisting rollers 6 on a yoke 3 carrying a winding spool 2 rotated about its axis and about the axis of the yoke by an electromotor 15. The electromotor rotates the yoke through variable gearing 18 and rotates the spool through gearing 9. The rollers 6 are placed adjacent the rollers 5 to confine the twisting action to a short length of wire. In a modification, Fig. 2, staggered rollers 13, 14 on the yoke bend the wire and are provided with smooth grooves which allow of rotational slip of the wire. As the twisting torque exerted on the wire is proportional to the resistance of the wire to bending above the rollers 13, 14, uniform twisting is obtained irrespective of the variation in hardness along the length of wire.
Patent GB-1214034-A (GB)
Title: Improvements in electric cable couplings for automatic central buffer couplings of rail vehicles
Inventor: SEIBT REINER
IPC: B61G5/10
Filed: 1968-02-16
Abstract: 1,214,034. Two-part couplings. MINISTERIUM FUR VERKEHRSWESEN. 16 Feb., 1968, No. 7827/68. Heading H2E. A cable coupling for automatic rail couplings comprises a main housing 1, an insulating housing 2 being mounted in it and having a forwardly projecting sealing rim 5 on its front outer surface, set back from which is an integral resilient sealing membrane 6 masking the entire front surface, sliding electrical contacts 3 being biased by springs 4 within bores in the insulating housing 2 and protruding through the membrane 6 which fits tightly into a groove 7 in each contact 3. Housing 2 is sealed to housing 1 by the outer surface of sealing rim 5 butting against the inner wall of housing 1. A cover flap (8, Fig. 3, not shown) may be provided, the inside of the flap having a sealing member (9) braced against the front boundary of rim 5 and butting against contact surfaces of contacts 3.
Patent GB-512498-A (GB)
Title: Improvements in the manufacture and production of fuels and motor fuels which are poor in ash, pulverulent and of high melting point
IPC: C10L5/00
Filed: 1938-03-14
Abstract: 512,498. Preparing fuel. JOHNSON, G. W. (I.G. Farbenindustrie Akt.-Ges.). March 14, 1938, No. 7877. [Class 50] [Also in Group III] Coal extracts, obtained by heating coal under pressure with a solvent, are fired from low melting constituents by a combination of distillation or mechanical separation, and treatment with a solvent for those constituents. In the case of mineral coal, solvent treatment alone may be sufficient. The refined extract is fired from solvent leaving a high melting residue, which is powdered and used as a fuel for diesel dust motors. For example, mineral coal extract is treated with boiling benzene, acetone, benzine, or liquefied hydrocarbons, and a brown coal extract is distilled in steam, and the residue extracted with hot acetone and benzene. The ignition point of the powdered product may be lowered by adding the substances described in Specification 485,461.
Patent GB-579515-A (GB)
Title: Improvements in or relating to vacuum tight seals
IPC: C04B37/02
Filed: 1944-04-27
Abstract: In the manufacture of electrical apparatus comprising a cylindrical porcelain bushing connected to a closely-surrounding metal collar by a ring of glass which fuses during firing to form a vacuum-tight seal, a porcelain is employed which has no abrupt variation in its rate of expansion between room temperature and 1100 DEG  C. and which is formed from a mixture containing substantially 1.58 per cent Na2O, 3.35 per cent K2O, 0.09 per cent CaO, 0.12 per cent MgO, 0.71 per cent TiO2, 0.47 per cent Fe2O3, 24.80 per cent Al2O3, 10-41 per cent zircon, cordierite, fused silica, or mulliteforming materials, and the remainder silica.  The mixture is fired at approximately 1225 DEG C.  Preferably, all the free silica is replaced as by zircon, a satisfactory final mixture including 12.57 per cent ZrO2 and 56.31 per cent SiO2. The coefficient of expansion is close to that of the nickel-cobalt-iron alloy of which the collar is made and to a borosilicate glass employed for the seal.
Patent GB-453528-A (GB)
Title: An improved closure for jars, bottles and other receptacles
IPC: B65D41/02
Filed: 1935-03-14
Abstract: 453,528. Closures for bottles. MAREK, A. J., 22, Blackheath Park, London, SMITH, A. H., 6, Nylands Avenue, Kew Gardens, Surrey, and SCREETON, S. A., Ridglands, Blythe Road, Bromley, Kent. March 14, 1935, No. 7938. [Class 125 (iii)] A closure for a bottle &c. comprises a sheet 1 of flexible material which is elastic, plastic or thermoplastic and can be shaped to fit the bottle, and a rigid skirt 2. The sheet 1 is inwardly flexed when the bottle is vacuumized. The skirt 2 may be of U - sectioned sheet metal, or may comprise an ordinary ring of wire &c.
Patent GB-267327-A (GB)
Title: Improvement in steering mechanism of motor vehicles
IPC: B62D61/08
Filed: 1926-03-24
Abstract: 267,327. Herds, E. March 24, 1926. Guiding vertical play; springs, arrangement of. -In a three-wheeled motor vehicle. having a single steering road wheel 1, the wheel axle is connected to the frame 8 bv universally-jointed radius rods 2 and is carried in a fork 3 connected to the frame by a laminated spring 4 which is universally-jointed to the fork, passes freely through the steering member 16, is pivoted at its middle to the frame at 12, and has its lower end shackled to a transverse frame mem. ber 10.
Patent GB-234584-A (GB)
Title: Improvements in steering gear for automobiles and the like
IPC: B62D3/04
Filed: 1924-03-31
Abstract: 234,584. Ross, D. E. March 31, 1924. Steering-gear. - Comprises steering-gear in which a rocker arm 4<b> on a shaft 4 engages a cam groove 3<c> of varying pitch in the operating or steering shaft 1. The pitch of the groove is very small when the rocker arm is in the central position shown so that the gear is then nearly irreversible; the pitch increases gradually towards each end of the groove. The shaft 1 may be formed with two grooves as shown, each groove being engaged by a roller 4<c> on the bifurcated rocker arm, or there may be only one groove and one roller. The roller is at such a distance from the centre of the rocker shaft that when in the mid position its centre is above the centre of the shaft 1 and in the end positions it is below the shaft centre. To allow the roller to fit properly in all positions the groove is made shallower at its ends and in the middle of its length than at the intermediate points where the axis of the roller crosses that of the shaft.
Patent GB-478922-A (GB)
Title: Rubber accelerator compositions
IPC: C08K5/00
Filed: 1937-03-20
Abstract: The vulcanization of rubber is accelerated by the addition to the mix of water soluble products obtained from a substantially insoluble thiuram sulphide by the action of an alkali metal salt of an acid of the type H2XO3 where X is a non-oxygen member of the oxygen group of the periodic system.  Examples of such acids are selenious, tellurous and sulphurous acids.  Thiuram sulphides mentioned are tetramethyl-, penta-methylene-, morpholine-, and arylated-thiuram sulphides.  In examples: (1) tetramethyl thiuram disulphide is boiled with an aqueous solution of sodium sulphite, to give a water soluble product; (2) tetramethyl thiuram monosulphide is boiled with an aqueous solution of sodium sulphite to give a soluble product.  The accelerators of the present invention may be used either alone or in combination with other accelerators, particularly with accelerators of the mercapto-arylenethiazole type.  An accelerator of this type which has been found to give good results is the formaldehyde - aniline derivative of mercaptobenzothiazole.  The accelerators may be used as a compounding ingredient in latex mixes, or the uncured rubber products may be immersed in a solution of the accelerator. The compounded latex may also be vulcanized in latex form.  The accelerators are stable towards ammonia, and do not cause undesirable prevulcanization on standing at room temperature. The term rubber includes caoutchouc guttapercha, balata, synthetic rubber, and rubber isomers.ALSO:The vulcanization of rubber is accelerated by the addition to the mix of water soluble products obtained from a substantially insoluble thiuram sulphide by the action of an alkali metal salt of an acid of the type H2XO3 where X is a non oxygen member of the oxygen group of the periodic system.  Examples of such acids are selenious, tellurous and sulphurous acids.  Thiuram sulphides mentioned are tetramethyl-, pentamethylene-, morpholine-, and arylated-thiuram sulphides.  In examples, (1) tetramethyl-thiuram disulphide is boiled with an aqueous solution of sodium sulphite to give a water soluble product: (2) tetramethyl-thiuram monosulphide is boiled with an aqueous solution of sodium sulphite to give a soluble product.  The accelerators of the present invention may be used either alone or in combination with other accelerators, particularly with accelerators of the mercaptoarylene-thiazole type.  An accelerator of this type which has been found to give good results is the formaldehyde-aniline derivative of mercaptobenzothiazole. The accelerators may be used as a compounding ingredient in latex mixes or the uncured rubber products may be immersed in a solution of the accelerator.  The compounded latex may also be vulcanized in latex form.  The accelerators are stable towards ammonia and do not cause undesirable prevulcanization on standing at room temperature.  The term rubber includes caoutchouc, guttapercha, balata, synthetic rubber, and rubber isomers.
Patent GB-917740-A (GB)
Title: Electrophotog raphic contact copying apparatus
IPC: G03G15/28
Filed: 1961-03-07
Abstract: 917,740. Electrophotographic contact copying apparatus. KALLE A.G. March 7, 1961 [March 12, 1960], No. 8295/61. Class 98 (2). The apparatus comprises a light-tight casing 1 having an inlet 2 for superposed sheets constituted by a master and electrophotographic copying sheet and a discharge slot 25 and containing a rotary transparent cylinder 7 with an internal light source 8, a charging device 3 for the copying sheet, a developing device 16 for developing the exposed copying sheet, a device 21 for fixing the developed image, and means such as rollers 4, 11, 24 for guiding the sheets from the inlet slot to the cylinder and from it to the discharge slot. Preferably the rollers 4 are connected by a sprocket and chain drive and the rollers 11 are spring-pressed hard rubber idler rollers which may extend over the whole or only part of the cylinder which is motor-driven, as are the rollers 24. Instead of driving the cylinder directly it may be rotated by driving one of the rollers 11. The exposure slot 10 of the reflector 9 surrounding the lamp may be adjusted to vary the exposure. The developer unit which is preferably arranged below the cylinder, as shown, comprises an applicator consisting of a metal roller 15 with a fabric covering 17 which is fed with developer powder by rotating cruciform stirrers 14. Fixing is effected by an infra-red heater 22 in an elliptical cavity in a finned aluminium block and provision may be made for ventilating the housing. Specification 902,558 is referred to.
Patent GB-699423-A (GB)
Title: Improvements in endless tracks for vehicles
IPC: B62D55/24
Filed: 1950-04-10
Abstract: 699,423. Endless tracks for vehicles. BEKKER, M. G. April 10, 1951 [April 14, 1950] No. 8336/51 Class 79 (i) In a vehicle endless - track mechanism comprising resilient support means, a frame member carried by the support means, curved guide means supported by the frame adjacent each end thereof, an endless track trained round the guide means and under the support means, flexible diaphragms are provided between the sides of the track and the frame, the diaphragms being fixed to one and slidable relative to the other and serving to retain lubricant within the track. As shown in Fig. 1 the track frame comprises side members 3 interconnected by members 2 and carries guide drums 4, 5 at the end, the drum 5 being preferably toothed for driving the track 6 which passes round the drums and under the resilient support means formed as a pneumatic cushion 1 which bears against the members 2. The sides of the track 6 are sealed by the diaphragms 7 and belts 8 passing around rollers 9 The outer faces of the belts for groove and flange seals with corresponding shaped members 11 secured to the members 3. The rubbing surfaces of the cushion 1 and track 6 are lubricated, the cushion having wedge shaped ribs 12 and the track having guides 13. The diaphragms 7 may be formed integral with the track or, as shown in Fig. 5, may be connected thereto by seals. In Fig. 5 the guides 13 are secured to the track 6 by bolts 17 which also secure thereto pads 18, each of which pads have a curved plate 20 and a metallic insert 19. The edge 16 of the diaphragm 7 has a trapezoidal projection matching a corresponding groove in the edge of the track 6 and the projection is held in the groove by an inflatable hose 21 between the curved plate 20 and the edge 16. In a modification, Fig. 4 (not shown),the drum 4 is replaced by a semi-circular pneumatic cushion.
Patent GB-453443-A (GB)
Title: Improvements in the manufacture and production of aminoalkyl sulphones
Filed: 1935-03-18
Abstract: Aminoalkyl sulphones are obtained by reacting sulphinic acid salts of the benzene series with halogen alkylamines.  The latter are usually added to the reaction mixture in the form of their salts, an alkali, alkaline earth metal hydroxide, or an alkali metal carbonate or alcoholate being added afterwards to liberate the base.  The reaction may be carried out in water or organic diluents such as alcohols or ketones and the reaction mixture is preferably kept neutral or slightly acid to litmus but neutral to congo.  Starting materials specified are the sodium salts of p-toluenesulphinic acid and benzenesulphinic acids containing groups such as halogen, substituted or unsubstituted amino, alkyl, alkoxy, hydroxyalkyl, nitro, hydroxyl, carboxylic, sulphonic, methyl, ethyl, methoxy, hydroxyethyl, diethylamino, acetylamino, or mercapto groups on the one hand and dialkylmonohalogen alkylamines such as b -chlorethyl- (or propyl, butyl, isopropyl)-di-ethyl- (or propyl-, butyl-, isobutyl-, dodecyl-, octodecyl, octodecenyl-) amines, or b -chlorethylamine, ethyl-b -chlorethylamine or diethyl-b -chlorethylamine on the other hand. Those salts of the sulphinic acid are most suitable which are soluble in the solvent employed, especially the alkali or alkaline earth metal salts, and the reaction is carried out by heating to temperatures of 40--200 DEG  C., especially 60--140 DEG  C., if desired under pressure.  In examples, b -chlorethyldiethylamine is reacted with the sodium salts of (1) p-toluene sulphinic acid, (2) p-acetaminobenzene sulphinic acid, (3) 4-methoxy-3-acetaminobenzene sulphinic acid, (4) 4-methyl-3-acetylamino-benzene sulphinic acid, (5) 4-methyl-3-nitrobenzene sulphinic acid, (6) 1 - methyl - 4 - acetylamino - 2 - benzene sulphinic acid.  The sulphinic acids of the examples are made by reacting the corresponding benzene derivatives with chlorsulphonic acid to give the sulphochlorides and reducing the latter.  The Provisional Specification also specifies as starting materials alkyl and hydroxyalkyl sulphinic acids (ethane, propane, isopentane, octodecane, octodecene and hydroxyethylsulphonethane sulphinic acids), alkyl disulphinic and polysulphinic acids (ethane and pentane disulphinic acids), hydroaromatic sulphinic acids (tetrahydronaphthalene sulphinic acid), aromatic sulphinic acids (benzene, toluene, diphenyl, naphthalene, anthracene and anthraquinone monosulphinic and polysulphinic acids), monosulphinic and polysulphinic acids of heterocyclic compounds (furane and thiophene sulphinic acids) and aralkyl sulphinic acids (benzyl sulphinic acid).
Patent GB-510471-A (GB)
Title: Composite reflector
IPC: F21V7/04
Filed: 1938-03-18
Abstract: 510,471. Reflectors. MANNHEIMER, M. March 18, 1938, No. 8405. Convention date, March 20, 1937. Drawings to Specification. [Class 75 (ii)] A composite reflector which is substantially equivalent to an aspherical complete mirror, e.g., a paraboloidal mirror, comprises a plurality of elementary reflectors each composed of transparent material with a reflecting rear surface, one surface of each elementary reflector being curved cylindrically, and the other surface being curved either cylindrically or spherically, the curvatures of the two surfaces being such that at a point on the aspherical mirror corresponding to the centre of the elementary reflector, the two half radii of curvature of the mirror in the two main directions of curvature are equal to the focal lengths of the elementary mirror in the corresponding directions. The two main directions of curvature at a point are defined as those directions, in the plane tangential to the aspherical mirror at that point, in which the curvatures are a maximum and a minimum. In the case of a paraboloidal mirror, these directions lie one in a plane through the axis of the mirror, and one in a plane perpendicular to that plane and to the tangential plane. In a composite reflector equivalent to a paroboloidal mirror the apical elementary reflector has two concentric spherical surfaces, and the surfaces of the other elements are shaped as previously described.
Patent GB-469203-A (GB)
Title: Improvements in and relating to paper-making machines
IPC: D21F1/02
Filed: 1936-03-21
Abstract: 469,203. Supplying pulp to papermaking machines. MILNE, S. March 21, 1936, No. 8455. [Class 96] In a flow or breast box of a Fourdrinier or cylinder papermaking machine, pulp flows, e.g. vertically, from an inlet e through successively branched pipes, or apertured paths to a single final outlet at the breast board m, to all parts of which the resistance to flow is the same. Boards, or baffles of copper, bronze, wood, rubber, &c. with holes successively smaller and more numerous towards the outlet, or alternatively, one or more pivotally adjusted boards with one or both longitudinal edges shaped to define a tapered opening may be used. One or more agitators may be fitted, and the boards &c. may be hinged, or readily removed to facilitate cleaning. There may be two inlets e fed from a branched pipe or from independent sources. There may be a movable wall near the final outlet to control the pulp flow. According to the Provisional Specification, the flow box may also have an indicator of the necessary head of pulp for a given speed of wire-cloth.
Patent GB-870851-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: MAGGS ARTHUR HEMBOROUGH
IPC: H02K19/38
Filed: 1959-03-11
Abstract: 870,851. Exciting synchronous machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 29, 1960 [March 11, 1959], No. 8460/59. Class 35. A synchronous motor or generator is current and voltage compounded through a rotary transformer, the current and voltage windings of which are of different pole numbers so that they have no effect on one another. In the form shown, the main output windings 1 are connected through current windings 3<SP>1</SP> and to voltage windings 4 on an auxiliary stator 14 forming the primary member of the rotary transformer. The secondary member comprises a rotor 18 carrying generating windings 5, 6 feeding the field winding 2 of the main machine through rectifiers 7. The windings 3<SP>1</SP> and 5 are of one pole number, and windings 4 and 6 are of a different pole number, so arranged that windings 5, 6 yield current and voltage components of the same frequency. In an alternative arrangement, the voltage winding 4 is replaced by a D.C. winding fed from the voltage of the main machine through a rectifier and a regulator. Examples of suitable pole numbers and phase rotations are given. Stator and rotor may be interchanged.
Patent GB-297886-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J1/20
Filed: 1927-03-30
Abstract: 297,886. Bullimore, W. R. March 30, 1927. Divided application. Vacuum tubes.-A valve has an indirectly-heated equipotential cathode in which one or more electronemitting surfaces 6 are formed on the inside of a cylinder 5 of silica or similar insulating material disposed within a vitreous envelope and around a central anode. A heating coil 7 is mounted around the cylinder, and its leads are taken through the upper end of 'the envelope. The anode consists of a metal tube 2 mounted around a glass tube 3 through which a cooling fluid such as water is circulated; or cooling fins may be provided on an extension of the anode outside the envelope. The leads for the anode, cathode, and grid 4, are taken through the lower end of the envelope. The cathode may be arranged so as to prevent the formation of induced; currents in the electron-emitting surface. Several sets of electrodes with a single heater may be mounted in an envelope. According to, the Provisional Specification the cathode and grid may be arranged inside the anode, and the cathode may have flat sides with rounded ends, the anode being in the form of a plate.
Patent GB-233323-A (GB)
Title: A method of arranging and mounting prisms in optical apparatus
IPC: G02B23/00
Filed: 1925-03-30
Abstract: 233,323. MoliniÚ, R. J. April 29, 1924, [Convention date]. Field glasses; telescope systems.-Optical apparatus, utilizing prisms between the eyepieces and objectives, have the reflecting prisms arranged so that the rays travel through the apparatus in a transverse plane the prisms comprising two distinct systems enclosed in flat casings which may be separated to adjust for different interocular distances. Three arrangements of prisms are described adapted for near, medium, and far distances. Each system in each arrangement consists of prisms P1, P2, P3 as shown in Fig. 1, in which the ray path through the prisms is in a plane transverse to that of the optical axes of the eyepiece and objective. As arranged in Fig. 1, the eyepieces are farther apart than the objectives, being thus adapted to view near objects. By disposing the prisms PI, P3 one above the other and the doubly reflecting prism P2 to one side the eyepieces and objectives will be the same distance apart and adapted for viewing objects at a moderate distance. For far distances the objectives are further apart than the eyepieces, the positions of the prisms P1, P3, Fig. 1, being changed to effect this condition. The prisms for each system are separately enclosed in flat casings arranged to slide apart to be suitable for different interocular distances, adjustments being made by screwed rods, hinges, or sleevelike casings enclosing the casings containing the prisms.
Patent GB-372487-A (GB)
Title: An improved radio-active cushion
IPC: G21G4/06
Filed: 1931-03-19
Abstract: A radioactive cushion for treating the human animal body has a filling of monazite sand.  In order to reduce its weight, the cushion is quilted or subdivided into a number of compartments by sewing.