baber/WOPTO huggingface dataset:
Patent GB-676732-A (GB)
Title: Improvements in or relating to x-ray devices
IPC: H05G1/20
Filed: 1950-09-22
Abstract: 676,732. X-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 22, 1950 [Sept. 26, 1949], No. 23280/50. Class 39 (i). [Also in Group XXXV] X-rays are produced by a series of voltage pulses across a tube 2 having a control electrode 7 and at least one screen electrode 8, the tube being connected through a series choke 3 to a D.C. source Vb. The source is of too low a voltage to produce X-rays, but by utilizing the control electrode to cause periodic interruption of the current across the tube, a voltage pulse is built up across the choke each time which is sufficiently high to cause X-ray emission. The circuit is shown in Fig. 1; the provision of the screen electrode 8, which is connected through a resistance 9 to the supply source, serves to reduce the control-voltage Vg required, and also to reduce the sensitiveness of the cathode emission to anode voltage variations. The interruption of the current is preferably arranged to be # to  of the period of the oscillatory time of the LC-circuit, and the voltage variation on the control electrode is such that the energy in the choke, after interruption of the current, is withdrawn by way of the tube, thus avoiding a counter voltage. In the practical embodiment of Fig. 2, the anode 24 is secured to a re-entrant part 30 of the tube wall in which the choke is housed integrally. The choke is built up of a number of separate parts 31 connected in series between the anode and the metal outer wall 10 of the tube, which is at earth potential. Each coil part 31 is carried by a metal ring 32, the rings being separated by glass or porcelain segments of the re-entrant wall 30, A cooling liquid, preferably oil, is introduced through an insulating pipe 33 and flows through channels 34 in the anode into the coil chamber and out through opening 37. The cathode 13 is surrounded by the cylindrical control electrode 14, which has a supply lead 22: and the screening electrode 17, formed with a re-entrant cylindrical tube 19, has a supply lead 23.
Patent GB-424689-A (GB)
Title: Improvements relating to files for letters or documents
IPC: B42F7/14
Filed: 1933-08-22
Abstract: 424,689. Filing papers. VEIL, J. F., Floreat Lindum, King's Road, Westcliff-on- Sea. Aug. 22, 1933, No. 23353. [Class 146 (i)] [See also Group XVII] A box file for letters and documents comprises an outer box b and an inner tray c, the tray c being capable of detachable connection with the box b in an inclined position relatively thereto to provide easier access to the papers in the tray. A clamping-arm g adapted to be held either in clamping or in the raised position by its operating spring j is attached to one wall e of the tray c. On the adjacent wall k of the box is a clip l with which the arm g is adapted to be engaged when in its raised position to hold the tray in its inclined position. A ring q is secured to the edge of the tray c to facilitate the manipulation of the tray.
Patent GB-595493-A (GB)
Title: Improvements in shuttles for looms for weaving
IPC: D03J5/08
Filed: 1945-09-11
Abstract: 595,493. Loom shuttles. DAWSON (SHUTTLEMAKERS), Ltd., T., (formerly DAWSON (BLACKBURN), Ltd., T.), and DAWSON J. Sept. 11, 1945, No. 23361. [Class 142 (iii)] [Also in Group XXIII] The metal pin which forms a pivot for the peg in the shuttle is a tight fit in the latter and is retained therein by a ring which engages in a peripheral groove near one end of the pin, the ring or the end of the pin or both being resilient to enable the ring to be sprung into the groove and to be removed therefrom. In the form shown, the pin B is formed at one end with a head b and near the other end with a peripheral grove b', a split ring D of greater external diameter than that of the pin being forced into the groove to retain the pin in position. A washer may be placed around the pin before the ring D is forced into the groove b<1>. In a modification, the pin is formed with a peripheral groove near each end, a split ring being forced into each groove. In another notification, the pin is formed with a diametrical slit and a peripheral groove at one or both ends, a solid or a split ring being forced into each groove. A tool for extracting the pin and for forcing the ring, or rings, into the peripheral groove, or grooves, in the pin is described. [See Group XXIII]
Patent GB-234837-A (GB)
Abstract: 234,837. National Cash Register Co., (Assignees of Shipley, B. M.). May 31, 1924, [Convention date]. Cash registers. - In a cash register as in Specification 8119/15, provided with an adding and subtracting totalizer shiftable axially to engage selectively with the actuators, the totalizer pinions in each pair are arranged close together and enclose the reversing gear connecting them. Thus the juxtaposed adding pinion 30 and subtracting pinion 31, having externally toothed flanges for engagement by the actuators 39, are dished and enclose the bevel gears 32 and bevel pinions 34 that cause opposite rotations of the counting pinions. Due to this construction the cam 52 controlling the axial position of the totalizer and set differentially by the transaction keys in the usual manner may be capable of only a slight throw and consequently the transaction bank may have its full complement of keys. In the Specification as open to inspection under Sect. 91 (3) (a) the invention is stated to be applicable to adding and subtracting machines. This subject-matter does not appear in the Specification as accepted.
Patent GB-1130583-A (GB)
Title: Control systems for switching an a.c. electric supply
Inventor: FAULKES KENNETH MILFORD
IPC: H03K17/725
Filed: 1965-06-02
Abstract: 1,130,583. Arcing-preventing in switches. ENGLISH ELECTRIC CO. Ltd. 27 May, 1966 [2 June, 1965], No. 23501/65. Heading H1N. An arrangement for switching an A.C. supply comprises two switches 4, 5 connected in parallel and a rectifier 2, 3 in series with each switch, the rectifiers being oppositely poled and each switch being operated during a halfcycle in which its series rectifier is non-conducting. A sensing network 13 is connected across the parallel circuit and provides an output at 20 to AND gates 14, 16 when the voltage at point 8 is above that at point 7. The network 13 also provides an output at 21 to AND gates 15, 17 when the voltage at point 8 is below that at point 7. When a " close " control signal is applied to a terminal 19, the gates 16, 17 provide output signals on the appropriate half cycles to cause latching circuits 11, 12 to energize the operating coils 9, 10 of the switches 4, 5. Similarly when an " open" control signal is provided at a terminal 18, the gates 14, 15 provide output signals on the appropriate half cycles to the latching circuits 11, 12 to deenergize the operating coils 9, 10 of the switches 4, 5.
Patent GB-337421-A (GB)
Title: Improved variable-speed gear
IPC: F16H61/664
Filed: 1929-07-31
Abstract: 337,421. Rutherford, R. July 31, 1929. Variable-speed and reversing gearing comprises a ball h transmitting power between a rotary disc g<9> and the inside of a cylinder a, the axes of disc and cylinder being perpendicular. The ball rotates in situ for each setting of the gear. The discs and balls are multiplied in the arrangement shown. The discs g<9> are driven in unison from a bevel-gear d fast on driving-shaft c which has a sliding connection at p with an engine shaft. Each disc g<9> is supported on a ball bearing g<10> upon a non-rotary cup g<6>, which is thrust outwards by a roller coacting with a flat e<2> so that the friction on the ball h varies with the load. The cups g<6> move radially in a block g mounted upon a sleeve e normally kept from rotating by a sliding connection at # with a fixed support #<1>. For forward speeds, block g, sleeve e, and shaft c are moved to the right together from the neutral position shown in Fig. 1, the ball h moving with half the displacement so as to move to the left relatively to the disc. To this end, the balls h are caged together and controlled by a system of racks. Cylinder a is driven in the same direction as shaft c, and is eventually driven direct by a clutch head c<1> on shaft c engaging an internal clutch a<2>, the sleeve e then moving clear of support #<1>. Reversed driving is obtained by moving the parts to the left from neutral. In place of a single ball h, a pair of engaging balls may be used. Instead of moving the discs axially, to change speed, a lining splined inside the cylinder a may be so moved.
Patent GB-1240363-A (GB)
Title: Insulation structure
IPC: F16L59/16
Filed: 1969-05-08
Abstract: 1,240,363. Insulation structure. ATLAS CHEMICAL INDUSTRIES Inc. 8 May, 1969 [9 May, 1968], No. 23615/69. Heading B5N. [Also in Division F2] An insulation structure suitable for pipes comprises a rigid cellular plastics foam 24 having a series of truncated V-shaped grooves 22 adhered to a continuous hand deformable skin 14 which may extend beyond an end surface of the foam, wherein the apex of the V-shape terminates at the inner surface of the skin and the truncated portion is sufficient to prevent fraction upon flexing the structure but does not prevent closure thereof. A second skin 16 may be provided on the surface into which the grooves are cut. The foam is preferably polyurethane which is formed in situ from a polyfunctional isocyanate, a polyfunctional hydroxy base material, a blowing agent, catalyst and optionally cell size regulators and fillers and examples of all these components, as well as other foams are specified. The skins may be of aluminium, steel, copper, paper, wood sheeting, clay or asphalt felts, woven or batting fibres, P.V.C., polyethylene or polytetrafluoroethylene. The grooves may have an internal angle of 5-90 degrees.
Patent GB-645014-A (GB)
Title: Improvements in shuttlecocks and method of manufacturing the same
IPC: A63B67/18
Filed: 1947-08-27
Abstract: 645,014. Shuttlecocks. MILLER, J. W. Aug. 27, 1947, No. 23622. [Class 132 (iii)] A shuttlecock comprising a cork head and feathers has a crown applied to the cork head to support the feathers and carry weighting means constructed integrally with it. As shown in Figs. 3 and 6 the cork head 10 is covered with kid or the like attached by cement. The crown is moulded from plastic such as cellulose acetate butyrate, is integral with a weighting device, and comprises a disc 15, with apertures 18 for feathers 13, and a flange 16. The apertures may be formed by individual bosses to reduce weight. Preferably the feathers do not penetrate the cork head. The weighting device may be solid and be trimmed to standard weight by drilling a hole 22 or maybe, as shown in Fig. 8, a container 23 in which pellets 25 are placed to bring it to standard weight and sealed in by a suitable solution. The flange 16 may have an internal bead 27 to make the crown more secure. Assembly of the unit consists of the steps of mounting the feathers on the crown, stitching, lacquering and weighting and then securing to the head. The crown may be attached by adhesive or the head compressed by a collett to insert it within the flange.
Patent GB-519066-A (GB)
Title: Improvements in and relating to gas tight doors
IPC: E06B5/14
Filed: 1938-08-10
Abstract: 519,066. Fastenings for gas-tight doors. MAUSER, K. W., MAUSER, R., and MAUSER, A. Aug. 10, 1938, Nos. 23643 and 23644. Convention dates, May 17, and July 25. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 12, 1939] [Classes 44 and 65 (ii)] [Also in Group X] A door 3 for rooms and shelters is provided with means for obtaining a gas-tight closure, hinges 19, Fig. 4, having co-acting inclined surfaces 23 for lifting the door when it is being opened, and levermechanism 14 actuated by the shaft 12 of the door-locking mechanism for lifting the door when the locking-means is released. The lever 14 shown is pivoted at 17 to the door leaf and carries at one end a roller 16 which is depressed into contact with a bracket 15 on the door frame when the other end is lifted by a cam on the shaft of the locking-levers 5. The door is thus lifted thereby bringing the surfaces 23 of the hinge into such position that they can ride one over the other. These surfaces are formed on lugs 21, 22, Fig. 4, one of which is carried by a bracket 20 fitted to the door frame and the other by a fitting on the door frame. The fitting carries the hinge pin 24 which passes through an elongated hole 25 in the bracket 20. When the door is lifted, an inclined surface 28 on the fitting engages with an inclined surface on a door-frame bracket 26, and urges the hinged edge of the door away from the frame. As shown in Fig. 6, the lower edge of the door is adapted, when lowered, to dip into a gutter 36 which is filled with liquid. The opening in the gutter is normally closed by a spring-controlled plate 39. The other edges of the door are either beaded, or bent to provide a rectangular or triangular edge, as shown in Fig. 10. to engage a gasket 47 fitted to the door frame. Alternatively, the gasket is carried oy the door.
Patent GB-278683-A (GB)
Title: Improvements in variable speed gear transmissions
IPC: D21F7/02
Filed: 1927-09-09
Abstract: 278,683. Waterbury Toot Co., (Assignees of Francis, D. R.). Oct. 9, 1926, [Convention date]. Driving mechanism.-In hydraulic transmission mechanism of the type described in Specifications 13894/07, 13895/07, and 13897/07, [all in Class 69, Hydraulic machinery &c.], for driving the sections of paper-making, textile or other machinery, a by-pass and reversing valve is provided in connection with each hydraulic motor. The valve casing is provided with conduits 11, 12 and 13, 14 connected to the pump and motor respectively, the conduits 11, 12 leading to recesses 18, so that with the valve 22 in the midposition shown, the pump is by-passed. The conduit 14 leads to ports 20, 21 and the conduit 13 to a central port.
Patent GB-1303220-A (GB)
IPC: B29C48/21
Filed: 1971-04-19
Abstract: 1303220 Extruded film W R GRACE & CO 19 April 1971 [23 March 1970] 23783/71 Heading B5A [Also in Divison B2]  A multiply plastics film comprising a tubular thermoplastic polymer substrate carrying an outer layer of a composition consisting of, by weight, 0-72% of isotactic polypropylene, 0-50% of polybut-1-ene and 0-50% of atactic polypropylene (the total of the percentages being 100) is produced by depositing a layer of meltextruded outer layer composition over the tubular substrate. The latter, which may be of polyethylene or ethylene/vinyl acetate copolymet, is produced by means of an extruder 9 and die head 11 and is passed in collapsed form through an irradiation vault 14 to cross-link the copolymer. The tubing is then passed through a vacuum chamber 21 and through the opening 26 of a circular cross head die 22 where a molten intermediate coating composition of ethylene/ vinyl acetate copolymer 23 is extruded around and sucked on to the substrate. After water spray cooling at 30, the two-ply film is coated with the outer layer composition by melt extrusion as for the intermediate layer and the product is passed to a water tank at c. 100 C. and stretch-oriented by a trapped bubble technique. The multiply tubular film is used in packaging.
Patent GB-186324-A (GB)
IPC: B65D5/20
Filed: 1922-09-02
Abstract: 186,324. Bliss, H. R. Sept. 19, 1921, [Convention date]. Joints between box bottoms and bodies.-A fibre or like shopping case having side and end closing flaps of which one pair overlap, is sealed by wire-stitching, rivets, &c., clinched along the joints in a particular manner, a T-arrangement of stitches being taken along the line of overlap of the overlapping flaps to fasten them together and .along one end to fasten said flaps to one of the underlying flaps; the underlying flap at the opposite end is also stitched to the overlapping flaps. In the form shown in Figs. 2, 3, and 9, one end has a double flap a and the stitches 1 - - 4 are made through both laps of this and the overlapping flaps before the T-arrangement is started, the clinching bar or anvil A being inserted from the opposite end of the case as shown. The anvil is then inserted between the stitches 1, 3, and the T-arrangement of stitches 5 - - 10 along the overlapping flaps and 11 - - 14 along the opposite end are made; finally the anvil is inserted between the laps of the flaps a and a stitch 15 made. Both end flaps may be single. In another arrangement having a double end flap, the overlapping flaps are first stitched together and then to the single end flap forming the T- arrangement, the opposite end being closed by stitches made on the anvil inserted from one side to the other between the laps of the double flap,
Patent GB-712126-A (GB)
Title: A lighting system comprising discharge lamps
IPC: H01F38/10
Filed: 1951-10-12
Abstract: 712,126. Transformers; supply systems for space discharge apparatus. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARESETABLISSEMENTS CLAUDE-PAZ & SILVA. Oct. 12, 1951 [Oct. 17, 1950], No. 23865/51. Classes 38(2) and 38(4) In a lighting system comprising two electric discharge lamps 30, 31 or two groups of such lamps each serially connected, and a high magnetic leatage transformer having at least one winding leg 9, 12, 16 on which are wound one or more primary windings 28 and two secondary windings 25, 29 for energizing the respective lamps or lamp groups which are respectively inductively and capacitively stabilized, the cross-sectional area of the major part or the whole of the core portion 9 on which is wound the secondary winding 28 energizing the capacitively stabilized lamp 30, and the core portions 7, 8, 19 which have the same flux as the portion 9 on which is wound the secondary windably twice as large as that of the core portions 1, 16, 17, 18 corresponding to the secondary winding 2 of the inductively stabilized lamp 31. The predominantly capacitive component of the stabilization of lamp 30 is provided by a series capacitor 32 and the inductive components of stabilization of both lamps is provided by the transformer leakage reactances. The core portions 4, 12, 13 associated with the primary winding 28 may have crosssectional areas intermediate those of the two secondary windings (not shown) or equivalent to those of either of the latter. Magnetic shunts 2, 6, 10, 15 are inserted in the winding spaces and are adjusted to compensate for constructional variations. The core legs are of uniform width and may comprise E-shaped laminations of different leg lengths. Alternatively, a core type transformer may be used having one secondary winding and one primary winding put on each leg, one leg having a greater cross-sectional area than the other. The transformer may be auto- or doublewound. The lamps may be of the type started by preheating of their electrodes.
Patent GB-869448-A (GB)
Title: Process for the temporary preservation of perishable foodstuffs
IPC: A23B4/20
Filed: 1959-07-13
Abstract: Perishable foods such as meat and vegetables are preserved by surface treatment with methanol, ethanol, propanol or isopropanol, or mixtures thereof, in 3-30% aqueous solution.  Antibiotics such as oxytetracycline or chlortetracycline, in low concentration, may be added to the treating solution.  After treatment the food may be placed in bags of polythene or regenerated cellulose in a refrigerator.
Patent GB-805690-A (GB)
Title: Improvements relating to stands for rolling mills
IPC: B21B35/06
Filed: 1957-07-29
Abstract: 805,690. Rolling. KOCKS G.m.b.H., F. July 29, 1957 [Aug. 6, 19561, No. 23973/57. Class 83 (4). In a universal rolling mill having two or more rolls driven from a single shaft through bevel gears, each gear has a hub 23, Fig. 2, carried in one of the roll-bearings, and is clamped to the corresponding roll by means, connected to the roll-axle, which when removed permits the axle to be withdrawn axially from the hub, roll and bearings. The invention is described as applied to a mill having three coacting rolls each of which is clamped to its bevel gear by a bolt 17 screwed into a cap 22 and having a flange 19 bearing against a ring-piece 20 screwed into a recess in the axle. A bevel gear 8 and a roll 5 are thus tightly retained between the cap 22 and a collar 18<SP>1</SP> on the axle 13. On unscrewing the bolt 17 the axle may be withdrawn axially from the bevel gear, bearings and the roll. In a modification a roll 5, Fig. 4, and its bevel gear 8 are clamped together by the wedge action of a conical seating 24. A cap 25, into which a threaded portion 18 of a bolt 17 is screwed, retains a cup-spring 26 which urges the gear against the side of the roll. Direct bearing between the roll and the gear is prevented by an intermediate ring 27 screwed on to the hub 23 and bearing against the roll-
Patent GB-1330279-A (GB)
Title: Headstock
IPC: B23B19/02
Filed: 1972-05-22
Abstract: 1330279 Grinding TOS HOSTNAR NARODNIK PODNIK 22 May 1972 [24 May 1971] 23994/72 Heading B3D A headstock for a cylindrical grinding machine comprises a workpiece spindle 4 connected by a gear-wheel 9 to a gear-wheel 8 having a freewheel mechanism 7 keyed to a shaft which has a pinion 6 engaging a rack 5 on the rod of a piston 2 of an hydraulic motor 1 having a control circuit 11, 18 distributer 10 and a terminallyoperated micro-switch 16. The spindle 4 is also connected by a pulley 20 and belt 13 to a pulley 14 having a free-wheel mechanism 15 keyed to a shaft 21 of a gear system 12 having stepped pulleys 23 connected by a belt 19 to stepped pulleys 24 of a motor 3. In operation, grinding is effected in three phases. In the first phase, neither the hydraulic motor 1 nor the electric motor 3 are operated so that the workpiece spindle is stationary while the grinding wheel is plunge fed into the workpiece to a predetermined depth. In the second phase, the distributer is actuated so that the piston 2 advances and rotates the spindle for one revolution at a slow speed. At the end of the advance of the piston, the switch 16 is actuated so that the motor 3 is operated to rotate the spindle at a rapid speed for the third phase in the grinding cycle in which the grinding wheel may have a micro feed followed by " spark-out ".
Patent GB-447744-A (GB)
Title: Improvements in the preparation of titanium compounds
IPC: C01G23/053
Filed: 1934-08-21
Abstract: Solutions or suspensions containing active titanium nuclei which accelerate the hydrolysis of titanium salt solutions are obtained by heating titanium solutions or suspensions in the presence of organic acids or salts thereof in proportions insufficient to prevent hydrolysis of the solutions or suspensions or to convert them, if partially hydrolyzed, into unhydrolyzed and unhydrolyzable solutions or suspensions, but sufficient to prevent the formation of particles of more than ultra-microscopic dimensions.  Thus a basic organic salt of titanium, such as basic titanium oxalate, after being washed free from soluble salts may be heated or boiled with water in the presence or absence of a mineral acid or salt thereof.  Or a basic titanium salt of a mineral acid, such as basic titanium sulphate precipitated from a titanium sulphate solution by sodium carbonate in the presence of sodium chloride, may be washed and heated or boiled with an organic acid or salt thereof.  Or a titanium sulphate solution may be heated to develop nuclei and the latter be stabilized by adding an organic acid.  Or an organic acid or salt thereof may be added to a basicized mineral acid solution of titanium such as the sulphate before or during heat treatment thereof to yield active nuclei.  Or titanium hydrate may be heated or boiled with an organic acid in the presence or absence of a mineral acid.  Or a basicized solution of an organic acid salt of titanium may be heated or boiled with or without the addition of a mineral acid.  The organic acids specified for use are oxalic and tartaric acid, and in the illustrative examples, oxalic acid is present in proportions of 0,25 to 0,5 mols per mol TiO2.  The solutions or suspensions containing the nuclei may be evaporated to obtain pastes or dry solids without the efficiency of the nuclei being impaired.  Specifications 308,725, [Class 1 (iii)], and 378,906 are referred to.