baber/WOPTO huggingface dataset:
Patent GB-560574-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J61/10
Filed: 1942-07-31
Abstract: 560,574. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 31, 1942, No. 10763. Convention date, Aug. 1, 1941. [Class 39 (i)] In order to increase the intensity of resonant radiation from a positive column electric discharge device, such as a fluorescent lamp 10, a series of spaced baffles 1-3, for trapping positive ions, is arranged in the discharge path between the electrodes 11. The baffles, which have a thickness of the same order as the mean free path of the electrons in the discharge, may be of metal, preferably with an insulating coating, or of insulating material, and are supported by a rod 15 fixed between the closed ends of the envelope of the device. As shown, the baffles are in the form of discs of smaller diameter than that of the envelope of the lamp so that the discharge can pass the edges of discs, but in modified constructions the discs fit the internal wall of the envelope and are either perforated or formed of wire gauze, so that the discharge can pass through them. The inner wall of the envelope, as well as the baffles and rod 15, may be coated with fluorescent material.
Patent GB-629188-A (GB)
Title: Improved electric heating elements and methods of producing the same
IPC: H05B3/84
Filed: 1947-04-22
Abstract: 629,188. Electric heating resistances. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. April 22, 1947, No. 10769. Convention date, April 22, 1946. [Class 39(iii)] An electric heating element is produced by providing a refractory support 1 of insulating material with ridges dividing its face into one or more continuous and tortuous paths 5, applying a conductive coating to the ridged face as by the spraying of molten metal and then removing the coating from the crest of each ridge. The support may be of glass formed by a pressing or moulding operation and is preferably tempered. The support may be formed with a single convolute ridge, a plurality of parallel ridges or a plurality of parallel ridges 3 alternately connected to one of two transversely disposed ridges 4, as shown. In all cases a marginal ridge 2 may also be provided and a further sheet of refractory insulating material may finally be secured over the coated surface. For vertically disposed heaters the ridges may be horizontal with their spacing progressively decreasing towards the bottom of the heater to increase the resistance per unit length of the coating at the lower portions of the heater.
Patent GB-844660-A (GB)
Title: Improvements in and relating to heat exchangers
Inventor: SPEARING KENNETH ARTHUR
IPC: F28F27/02
Filed: 1958-04-03
Abstract: 844,660. Heat exchangers; steam superheaters. FERGUSON SUPERHEATERS Ltd. Feb. 24, 1959 [April 3, 1958], No. 10806/58. Classes 64(3) and 123(3) In a heat exchanger header, a primary chamber A lies between and is sealed from two other or secondary chambers B which are interconnected by an internal fluid path, such as a tube 10, extending through and sealed from the chamber A, and which are individually connected to the chamber A by an external fluid flow path such as by heat exchange tubes 3. The header is said to be intended for use with fluid at high pressure.
Patent GB-910367-A (GB)
Title: Improving adhesion of vinylpyridine copolymer rubber to other rubbers
IPC: C08K3/22
Filed: 1961-03-24
Abstract: 910,367. Pneumatic tyres. UNITED STATES RUBBER CO. March 24, 1961 [June 15, 1960], No. 10827/61. Class 144 (2). [Also in Group VIII] A pneumatic tyre tread comprising a rubbery vinylpyridine polymer, which may be a copolymer containing 10 to 30% monovinylpyridine and from 90 to 70% butadiene, or a terpolymer containing 90 to 70% butadiene, 5 to 25% styrene and from 5 to 25% monovinylpyridine, is adhered to a carcass of another different rubber, which is a rubbery polymer of a conjugated diolefin, by compounding 100 parts of the vinylpyridine rubber with 0.25 to 8 parts of dicumyl peroxide and from 1 to 10 parts of lead oxide, compounding the other rubber for sulphur vulcanization, laminating the two differently compounded rubbers, and vulcanizing. The rubbery polymer of a conjugated diolefin may be natural rubber, butadiene-styrene copolymer, polyisoprene, or polybutadiene. A number of vinyl pyridines are listed, some also containing methyl or ethyl substituents. The lead oxide may be red lead or litharge. The blend of vinylpyridine rubber with dicumyl peroxide and lead oxide may be used as a tie gum between vinylpyridine rubber and sulphur cured rubber, e.g. for adhering new treads to old tyre carcasses. The rubber stocks may be separately shaped by calendering, extruding, &c. and may contain textilefabric or wire reinforcement.
Patent GB-171075-A (GB)
Title: Improvements relating to the distillation of oils
IPC: C10G9/30
Filed: 1921-04-13
Abstract: 171,075. Trent Process Corporation, (Assignees of Trent, W. E.). Nov. 4, 1920, [Convention date]. Hydrocarbons, cracking. - Lighter oils are obtained by heating a mixture of hydrocarbon oil and finely divided solid fuel such as coal, anthracite, or lignite, to a, temperature not above 550‹ C. and condensing the vapours. any gas evolved being scrubbed and stored. With the apparatus shown, a mixture of 1 kilo oil and 2 kilo coal in the hopper 2 is conveyed through the tubular retort 10 which is heated to 300 -350‹ C. by combustion gases that travel from a burner 16 through a hollow rotating shaft 12 provided with hollow paddles 15 and through a jacket 11 to an outlet 13<1>. The gases and vapours pass by a pipe 18 to condensers, scrubbers, and a gas reservoir; the residue is discharged through a pipe 20 as a dry powder. The Specification as open to inspection under Sect. 91 (3) (a) describes also that a mixture of oil and coke or the residue which passes from the pipe 20 may be distilled. This subject-matter does not appear in the Specification as accepted.
Patent GB-624911-A (GB)
Title: Improvements in rotary cultivators
IPC: A01B33/10
Filed: 1947-04-23
Abstract: 624,911. Agricultural implements. PETTMAN, A. V. April 23, 1947, Nos. 10831 and 10832. Convention dates, April 29, 1946, and April 2, 1947. [Class 6(i)] A rotary cultivator comprises a hub 1 carrying arms 2 and mounted on a tubular shaft 3, the arms having curved outer ends to which are attached curved leading cutters 5 which continue the curves of the arms, blades 7 being secured across the arms to make vertical cuts in the ground, and wing cutters 8 and 9 being mounted to project from each side of the arms. The leading cutters 5 have chisel-shaped cutting edges 6 and may include curved ribs carrying cutting edges 5a. The wing cutters 8 are bolted to the arms and are curved to conform to the curves of the arms. The bolts 10, 12 which secure the blades 7 to the arms are used also to secure the sets of wing cutters 8 and 9 thereto. The cultivator shaft 3 may be mounted on a tractor and driven by suitable gearing, the working depth being adjustable through a toothed rack and pinion operating on the arms by which the cultivator is suspended from the tractor or implement.
Patent GB-756774-A (GB)
Title: Improvements in or relating to copolymers suitable for filters permeable to infra-red light
IPC: C08F8/00
Filed: 1954-04-13
Abstract: A copolymer of acrylonitrile and one or more other polymerizable compounds is heat-discoloured to such an extent that it is more permeable to infra-red light of a wavelength from 1000 to 3600 mm than to visible light, e.g. by heating the copolymer to above 140 DEG C. until the desired degree of discolouration is obtained.  The copolymer may contain a dyestuff which has a greater permeability for infra-red light than for visible light, and which is introduced into the monomeric ingredients of the copolymer before copolymerization is effected. The copolymer may also contain various substances capable of intensifying the discolouration during heating, and which may be added to the copolymer before, during, or after polymerization. Substances mentioned are hydrochloric, phosphoric, sulphuric and trichloracetic acids and salts such as zinc chloride, iron chloride, aluminium chloride, alkalis such as alcoholic potash lye, hydrogen peroxide, benzoyl peroxide, pyridine, and azodiisobutyronitrile. Specified other polymerizable compounds are methyl methacrylate, styrene, vinyl acetate, and vinylidene chloride.  The copolymer in the form of plates may be used as filters permeable to infra-red light.  Specification 727,827 is referred to.
Patent GB-1060537-A (GB)
Title: Getter vacuum pump method and apparatus
IPC: H01J7/18
Filed: 1965-03-15
Abstract: 1,060,537. Ion pumps; gettering. VARION ASSOCIATES. March 15, 1965 [April 1, 1964], No. 10890/65. Heading HID. [Also in Division G3] The evacuation of a space 11 is completed by a getter vacuum pump 16 having an anode 21 made of or coated with getter material which is heated to sublimation temperature by bombardment of electrons from a thermionic cathode 22. The temperature of anode 21 is maintained at a desired value, set by adjustment of a variable resistor 26, by means of a control system comprising members 23 ... 28 so arranged that the electron emission from the anode 21 is detected by a collector 23 to produce current flow through the circuit 24, 25, 26, the voltage developed across the resistor 26 being applied to a control circuit 27 which produces an A.C. output voltage, of inverse amplitude to the applied signal, for energizing a transformer 28 supplying the cathode 22. The temperature of the anode 21 is chosen so that sublimation of the getter material occurs at a rate providing maximum reaction and absorption with the residual gases in the space 11 without wastage of getter material. The control may be carried out by making the reading of meter 25 a function of anode temperature, omitting the circuit 27 and manually adjusting the voltage applied to the cathode 22 in accordance with the meter reading. In a modification, Fig. 2 (not shown) the cathode 22 is mounted within a vacuum-tight cylindrical anode cartridge 33 maintained positive with respect to the cathode by a high voltage D.C. supply 34, and the collector 23 is maintained positive with respect to the anode 33, supplies 24, 34 being replaceable by transformers without regard to phase relationships.
Patent GB-104629-A (GB)
Title: Improvements in, or relating to, Haulage Indicators.
Inventor: WATTS OLIVER
IPC: B66B3/02
Filed: 1916-08-02
Abstract: 104,629. Watts, O. Aug. 2, 1916. Index attachments.-The rope drum of a haulage system is coupled to a sprocket-wheel driving an indicator showing the position of the car or train, by a device which permits axial motion between the drum and the sprocket-wheel. On the drum shaft c is fixed a collar f, on which a wheel i is freely mounted. The sprocket-wheel h is bolted to the wheel i, which carries pins j parallel to the shaft c. The rope drum carries a number of radial slotted arms r which engage the pins so as to drive the wheels h, i, but to allow axial movement of the arms r.
Patent GB-234968-A (GB)
Title: Improvements in or relating to machines for cleaning or otherwise preparing roots and the like
IPC: A01D17/14
Filed: 1924-05-03
Abstract: 234,968. Richmond & Chandler, Ltd., and Mitchell, E. May 3. 1924. Cleaning roots. &c. - A machine, for cleaning and removing shoots from roots, of the kind wherein spaced bars form a rotary barrel the inclination of which is adjustable, is provided with an internal beater which rotates on an axis parallel and adjustable with the barrel axis. The spaced bars 4, some of which are set inwardly and sharpened, are combined by rings 3 which rest and rotate on anti-friction rollers 5, the roller 5 adjacent to the feed hopper 22 being, with the hopper, mounted on a bracket 6 which is adjusted vertically by a screw 7. A shaft 17, journaled in a bracket 15, is driven by a chain and sprockets from the shaft 10, which carries a pinion 9 engaging with gear teeth 8 on the ring 3, and is connected by a flexible coupling 19 to a shaft 18 carried by a self-aligning bearing 16 on the bracket 6. The shaft 18 passes through the barrel 2 and carries beater bars 20 which are rotated in the opposite direction to the barrel. A discharge shoot 23 is provided.
Patent GB-319679-A (GB)
Title: Improvements in and relating to the shortening of a sound record consisting of steelwire
IPC: G11B5/00
Filed: 1929-04-09
Abstract: 319,679. Stille, C., (Assignee of Hornauer, W.). Sept. 26, 1928, [Convention date]. No Patent granted (Scaling fee not paid). Magnetic sound records; cutting out corresponding portions of sound record and picture film, devices for facilitating.-Relates to a sound record in the form of a steel wire on which sound has been magnetically recorded, which is to be used in conjunction with a kinematograph film, and to the treatment of such a record in cases where it is necessarv to shorten the film. The steel wire is moved synchronously with the picture film, and the parts to be removed from both are aocurately determined. After the cutting out of the parts of the sound record corresponding to the parts of the picture film that are to be removed, the cut ends of the wire are joined together either by means of a thin tube of soft metal drawn over the ends and pressed around them, or by electrical welding. To enable the points at which the wire is to be cut to be readily noted, the apparatus through which the wire is driven synchronously with the picture film moves an indicating pointer over a graduated scale.
Patent GB-1263992-A (GB)
Title: N-substituted 4-amino-steroids
IPC: A61K31/57
Filed: 1969-02-28
Abstract: 1,263,992. 4-Amino-steroids. SOBERING A.G. 28 Feb., 1969 [29 Feb., 1968 (2)], No. 10973/69. Heading C2U. Novel 4 - NR 1 R 2  - #<SP>4,6</SP> - 3 - keto - steroids (wherein R 1  and R 2  each represents substituted or unsubstituted alkyl, or R 1  and R 2  together represent alkylene which may be interrupted by a hetero atom and/or may be substituted) and acid-addition salts of those compounds wherein R 1  and R 2  are N-interrupted alkylene are prepared from the corresponding 6#,7α-dihalo-#<SP>4</SP>- 3-keto-steroids (wherein the halogen atoms, which may be the same or different are Cl or Br) and the appropriate amines NHR 1 R 2 . In the products acid-addition salts may be formed, esterified OH groups may be hydrolysed, and free OH groups may be esterified. 6#,7α - Dihalo - #<SP>4</SP> - 3 - keto - steroids used as starting materials are prepared from the corresponding #<SP>6</SP>-unsaturated steroids by halogen addition. The steroids of the invention are stated to possess variously androgenic, anabolic, antiestrogenic and gestagenic properties, and those of the pregnane series to be useful as contraceptives, and they may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-164923-A (GB)
Title: Improved machine for mixing and delivering powdered pumice with liquid
IPC: B24B57/00
Filed: 1920-04-21
Abstract: 164,923. Evans, F., Pointer, W. N., and Genovese, f C. April 21, 1920. Stationary batch-mixers with rotary stirrers.- A machine for mixing powdered pumice with liquid and delivering it to apparatus for bevelling and cutting glass &c. comprises a container A containing a rotary drum or wheel B, fitted with agitators D, and a collector F to receive the mixture from the periphery of the drum or wheel and deliver it to the desired position. The agitators D are fixed to the arms b<1> of the wheel B, and the semicylindrical container A is provided with a cover E having an inlet e for the pumice and water &c. The collector F is mounted on a spring f fixed to the side of the container. The cranked end g<1> of a rod carried in a bracket g<2> engages the collector and raises its end out of contact with the periphery of the wheel when an horizontal bar is moved inwards towards the machine. The upper surface of the collector is preferably slightly concave. The shaft b of the wheel is driven through toothed gearing from a shaft carrying the driving-pulley 0<2>, According to the Provisional Specification, the drum or wheel is mounted eccentrically on its shaft.
Patent GB-225460-A (GB)
Title: Improvements relating to the treatment of hides and skins
IPC: C14B1/00
Filed: 1924-05-05
Abstract: 225,460. Schmid, H. G., and L³ttig, J. May 5, 1924. Rotary-drum machines.-Hides and skins are washed, softened &c. by being passed through an open-ended rotating drum inclined at a slight angle. Water may be introduced to pass in the same direction or in the opposite direction. As shown, the drum a, which is slightly conical, is rotated by spur gearing and has internal paddles b. The skins &c. are introduced at the larger end and water, when used, at the smaller end. Outflow holes k are provided for the water at the larger end. The drum is mounted in a pivoted frame m, o, n adjustable, by a screwed spindle p to vary the inclination of the drum axis.
Patent GB-1331572-A (GB)
Title: Pneumatic control device for starter
IPC: F01L13/00
Filed: 1971-04-23
Abstract: 1331572 Pneumatic engine starters A FAUX 23 April 1971 [24 April 1970] 11192/71 Heading F1K A pneumatic control device for a pneumatic starter 1 of an engine comprises a main valve 11 supplying compressed air to a fuel distribution control system, a detector valve 14 located in series downstream of the main valve and arranged to close when the heat engine reaches a certain speed of rotation, three pneumatic logic element 16, 18 and 22 located downstream of the main valve with the following respective functions time-lag, AND function and NOT function and a conduit 26 connecting the outlet of the NOT element to a control valve 28, 29 of the pneumatic starter in such a manner that the latter is actuated for a predetermined period by the time-lag element. The starter may be used with an emergency electrical generator set. The main valve 11 is an electromagnetic valve which is opened in the event of a breakdown of the mains supply circuit. If the engine does not start up the valve 14 remains open and the alarm system 21 operates at the end of a period of time-lag.
Patent GB-435419-A (GB)
Title: Improvements in or relating to electric circuit breakers
IPC: H01H33/92
Filed: 1934-04-13
Abstract: 435,419. Automatic circuit-breakers; liquid-break switches. FLURSCHEIM, C. H., Rushmoor, Fleet, Hampshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. April 13, 1934, No. 11223. [Class 38 (v)] Springs, arrangement of.-A breaker of the impulse type has its movable contact mounted on a laterally displaceable beam or equivalent on which act spring or equivalent loading means which may be preset. The beam has a collapsable support so arranged with respect to the spring that, when latched in place, the spring tends to turn the beam about the support and close the switch. This is resisted in the open position by a second latch and with the latter tripped and the switch closed the spring tends to open it but is resisted by the collapsable support. An oil system is adapted to be acted upon by the beam during opening, in a manner to project liquid such as oil across the contacts. Fig. 1 shows in the open position a form in which a movable contact 2 co-operating with contacts 3 is mounted on an end p of a floating beam 1 which is acted upon at r by a spring in the direction of the arrow 4. In closing, the spring is preset by a ram or the like 5 acting slightly to the right of r and thereby rotating 1 about p until the end of s can be latched by 9. In this position the toggle 7 is nearly extended and can be held by catch 8, and if the latch 9 is tripped, the spring rotates the beam about q and closes the switch. Opening is effected by the spring when catch 8 is tripped. Fig. 4 shows another form, also in the open position, in which the end p<1> is connected to the plunger 10 of a dashpot 11 and the end s has a lostmotion connection at 12 with an oil-blast piston 14 adapted to project arc-extinguishing oil across the separating contacts. To close, the ram 5 is raised and rotates 1 about p, so moving the end s up the link 12 and compressing the spring 13. The spring 4 is thereby compressed and the toggle 7 extended and latched at 8, the final closing movement being effected by tripping catch 9<1> and breaking toggle 17, Fig. 6, q being the pivot. During the latter part of this movement the plunger 10 leaves the dashpot and enables a rapid closure, and the end s returns to its original position. To open, the catch 8 is tripped to collapse toggle 7, but owing to the inertia of 14 and the blocking of the outlet of 16 by the contacts, the point s remains substantially fixed and a rapid movement of contact 2 occurs. When 10 re-enters 11, this movement will be retarded and the uncovering of 16 will permit the piston 14 to set the oil-blast in motion, the parts being restored to the position of Fig. 4. In Figs. 8-12 (not shown) are illustrated two applications of the construction of Figs. 4-7 to the invention of Specification 435, 143. In one of these forms, dual closing means according to the invention is provided, so that instantaneous reclosure of the switch can be effected while the spring that has effected the opening movement is being recharged.
Patent GB-108364-A (GB)
Title: Improvements in Parachutes.
Inventor: CROXON WILLIAM
IPC: B64D17/54
Filed: 1916-08-09
Abstract: 108,364. Croxon, W. Aug. 9, 1916. Parachutes.-To facilitate the opening of a parachute for use with aircraft, an annular " curtain " A of silk, linen, indiarubber, &c. is attached to the periphery of the parachute A' and is connected by lines C to thimbles B sliding on the main lines D, which are secured to the periphery of the body A<1>. The curtain does not support any weight until the thimbles B engage stops on the lines D. In a modification, the main lines D are attached to a band fitted round inside the parachute, the periphery of which is then connected by the lines C to the thimbles B. A flap valve may be fitted at the apex of the parachute. The container for the parachute is preferably of stream-line shape, and may be formed of two spring-hinged parts, so that the whole parachute is presented to the air when a catch is released.
Patent GB-1428238-A (GB)
Title: Electro-coagulation forceps
IPC: A61B18/14
Filed: 1973-03-07
Abstract: 1428238 Sterilization forceps H J LINDEMANN 7 March 1973 [10 Feb 1973] 11229/73 Heading A5R Electrocoagulation forceps, suitable for sterilising the Fallopian tube or removing diseased tissue, comprises two electrically conditioning arms 11, 12, which are insulated from each other, said arms being connected at one end by a bar-like handle 13 and the two arms lying in a tubular sheath 14 of insulating material with at least one arm connected to a high frequency electrical supply. The free ends have curved gripping jaws 15, 16, the external periphery of each jaw carrying insulation 20, 21 respectively, the inner regions and the opposed ends 15a, 16a being free from insulation.
Patent GB-890827-A (GB)
Title: Inert gas shielded metal arc welding
IPC: B23K9/173
Filed: 1960-03-30
Abstract: 890,827. Welding by fusion. UNION CARBIDE CORPORATION. March 30, 1960 [April 15, 1959], No. 11258/60. Class 83 (4). In arc welding aluminium, magnesium and their alloys by separate arcs formed between a pair of spaced consumable electrodes of the same diameter connected to the positive pole of a D.C. source and a common fusion zone on a workpiece connected to the negative pole, the arcs being shielded by a single stream of inert gas discharged from a single nozzle surrounding the electrodes, the current density in each of the electrodes is in excess of 55,000 amps./sq. inch. The spacing of the electrodes must be sufficient to ensure a smooth weld. Argon and/or helium are the shielding gases and the electrodes may be 96% aluminium 3.5% magnesium and 0.25% chromium. A copper guide tube 6 having passages 65 for the electrodes 1 and removable contact tips 8 is held by a split collet 10 in a torch body 13 carrying but insulated from a water cooled gas nozzle 22.