baber/WOPTO huggingface dataset:
Patent GB-814151-A (GB)
Title: Improvements in and relating to tube bending machines
IPC: B21D7/06
Filed: 1957-04-15
Abstract: 814,151. Angular bending. HUET, A. April 15, 1957 [April 25, 1956], No. 12313/57. Class 83(4). A tube bending machine comprises a punch member and a die member adapted to be moved relatively to one another to clamp a tube positioned between them, rollers being adjustably supported at each side of said punch and die members and so arranged as to engage portions of the tube protruding on each side of the punch and die members, means being provided for moving the punch and the rollers on each side thereof relatively to the die and its rollers so as to bend the tube. A die a, formed with a groove b to engage a tube i to be bent, is adjustably mounted on a stationary cross-member 1 and grooved rollers j<SP>1</SP>, j<SP>2</SP> are supported one on each side of the die a, so as to be adjustable theretowards, in cheeks l<SP>1</SP>, l<SP>2</SP> fixed to the cross-member 1. A punch g, grooved at h, is adjustably mounted on a cross-member 2, movable towards the die a, and grooved rollers n<SP>1</SP>, n<SP>2</SP>, one on each side of the punch g, are carried by cheeks on the cross-member 2 and are adjustable to and from the punch g. A tube i to be bent is positioned on the punch g and beneath the rollers j<SP>1</SP>, j<SP>2</SP> and the punch is moved towards the die a so that tube is bent downwardly at its ends by the rollers j<SP>1</SP>, j<SP>2</SP> and then, as the rollers n<SP>1</SP>, n<SP>2</SP> contact the tube, it is given its final cranked form, Fig. 4. In an alternative arrangement, Fig. 5, the bending is effected in two stages, first the punch g moves while the rollers n<SP>1</SP>, n<SP>2</SP> remain stationary then the rollers n<SP>1</SP>, n<SP>2</SP> are moved by jacks r<SP>1</SP>, r<SP>2</SP> to form the final cranked shape. The tube may be heated to facilitate bending. The central portion C of the bent tube may be made other than straight.
Patent GB-1381995-A (GB)
Title: Discharge-type flash apparatus
IPC: H05B41/32
Filed: 1973-03-14
Abstract: 1381995 Flash control circuit FRANKE & HEIDECKE GmbH 14 March 1973 [19 May 1972] 12335/73 Addition to 1295204 Heading G2A In a flash control circuit, a main capacitor 1 discharges through a flash tube 5 and a phototransistor 21 measures light reflected from the subject and controls charging of an integrating capacitor 23 whereby:- (a) if the light reflected is low the voltage on a second integrating capacitor 29 charging at a fixed rate turns on a thyristor 28 whereby a capacitor 12 discharges through a winding 13 to fire a tube 14 so that an additional capacitor 3 discharges through tube 5. (b) if the light reflected is high, a differentiating capacitor 32 connected to capacitor 23 turns on a thyristor 31 to short circuit capacitor 29 and prevent connection of the additional capacitor 3 to tube 5. When the voltage on capacitor 23 reaches a predetermined value it turns on a thyristor 27 whereby a capacitor 8 discharges through a winding 9 to fire a quench tube 17 and short circuit tube 5. A circuit 33, 34, 35 turns on thyristor 31 when quench tube 17 is fired to prevent unintentional discharge of capacitor 3.
Patent GB-1126299-A (GB)
Title: A friction clutch
IPC: F16D23/14
Filed: 1967-03-16
Abstract: 1,126,299. Friction clutches. LUK LAMELLEN UND KUPPLUNGSBAU G.m.b.H. 16 March, 1967 [19 March, 1966], No. 12406/67. Heading F2C. A friction clutch is engaged by a diaphragm spring 5 and disengaged by a release sleeve 8 axially slidably mounted in a guide sleeve 7 welded to a clutch cover 2, the sleeve 8 being shifted to the right to disengage the clutch by a fork 13 acting through a bearing 10. To give compact axial dimensions to the clutch the guide sleeve 7 extends mainly inwardly of the cover 2. The inner periphery of the diaphragm spring 5 is engaged by a disc 14 which is retained axially of the release sleeve 8 by a spring ring 23 and has parts 18 projecting through slots 16, 17 in the sleeves 7, 8 and has recesses 15 through which project fingers provided between the slots 16, 17 of the sleeves. The ends 30 of the slots in the guide sleeve limit the maximum disengaged position of the disc 14. When the clutch friction linings have worn a predetermined amount a disc 12 of the disengaging mechanism abuts an end face 27 of the guide sleeve to prevent further engaging movement.
Patent GB-289778-A (GB)
Title: Improvements in or relating to electric circuit breakers
IPC: H01H9/36
Filed: 1928-04-27
Abstract: 289,778. Associated Electrical Industries, Ltd., (formerly Metropolitan- Vickers Electrical Co., Ltd.), (Assignees of Baker, 13. P.). April 30, 1927, [Convention date]. Addition to 288,326. Arc-rupturing devices, of the kind described in the parent Specification, in which the arc is blown up into a deionizing structure 21 comprising a series of metal plates and is then divided into sections separated by field coils 43, 47, 49 which drive the sections of arc round and round the upper circular portions of the plates, are characterized by the field coils being so arranged that they drive the sections round in opposite directions. The plates between the coils 43, 47, 49 have the shape shown in Fig. 2, excepting that the slots 36 of successive plates are staggered. The plates below the coils have the shape shown in Fig. 5 and those immediately adjacent the coils have the shape shown in Fig. 4. The plates and coils are mounted on an iron bolt 51 provided with longitudinal slots 52 to minimize eddy currents.
Patent GB-693631-A (GB)
Title: Improvements in or relating to electric pulse counting circuits using crystal triodes
Inventor: WHITE CHARLES DE BOISMAISON
IPC: H03K29/00
Filed: 1950-05-18
Abstract: 693,631. Semi-conductive devices. STANDARD TELEPHONES & CABLES, Ltd. May 18, 1950, No. 12453/50. Class 40 (iv). [Also in Groups XIX and XL (c)] A pulse counting circuit comprises a crystal triode operating as a trigger circuit so that an output pulse is generated in response to each input pulse to be counted, the output pulses then being applied to fire in succession the cathodeanode gaps in a gas-filled sequence tube, thus deriving one pulse at the output of the tube in response to a pre-determined number of input pulses. The Figure shows a frequency-dividing or pulse-counting circuit in which negativegoing input pulses applied from a differentiating circuit 27, 17 to the base electrode of a crystal triode 1 trigger the circuit which operates as a triggered pulse generator, the bias on emitter 4 being set by potentiometer 15 to just below the critical value at which the circuit exhibits a negative impedance characteristic. Negativegoing output pulses are derived from the emitter 4 and are applied via transformer 25 to a trigger electrode 32 of a gas-filled sequence tube 29 of the type described in Specification 692,415, [Group XIX], any positive overshort being absorbed by rectifier 42. The tube 29 comprises an anode 30 and ten cathodes 31, each having associated with them a trigger electrode 32. At the start of a count the extreme lefthand discharge gap between electrodes 30, 31 is primed by spread of ionization from the last discharging cathode so that the first negative input pulse applied at 32 fires this gap, the drop in potential across resistor 38 extinguishing all the other gaps. The second gap is then primed by spread of ionization so that the next input pulse fires the second gap and this action continues round the tube until after ten input pulses an output pulse is produced at terminal 35. A number of such circuits may be connected in cascade so that a decade counting series is obtained.
Patent GB-965042-A (GB)
Title: Improvements in or relating to air cooling systems
Inventor: FITT PETER WILLIAM
IPC: F24F5/00
Filed: 1962-03-31
Abstract: 965,042. Air conditioning. NORMALAIR Ltd. June 28, 1963 [March 31, 1962], No. 12480/62. Heading F4V. In an air cooling system, a humid air flow is cooled in a combined heat exchanger and water extractor, said heat exchanger being provided with a supply of liquefied gas at a temperature below 0‹ C., said supply of liquefied gas being arranged to be intermittent under the control of a thermostat positioned in said air flow downstream of said heat exchanger. In the Figure, humid air to be fed to an aviator's suit is passed for conditioning from the compressor of a turbine engine to a combined heat exchanger and water extractor 12 by an inlet pipe 11 arranged tangential to the exchanger housing but angled slightly from the normal to the axis of said housing to cause an internal air flow along a helical path. Moisture condensed from the air is removed through a drain 28. An axial tube 14 passes through an end wall 15 of the exchanger to the far end, and is formed with holes adjacent this latter end for the outflowing air. Liquid oxygen is fed from a storage tank 29 through pipe 30 to the outer of two continuous concentric helical coils of small bore tubing formed around the tube 14 through the wall 15, the helices having the same hand of helix as the air flow. The liquid oxygen becomes gaseous in this tubing and after passing through an inner coil, is passed to a solenoid valve 19 before injection into the air flow through a nozzle 20. Thermostats 21, 22, 23 operating at different temperatures sense the temperature of the air and gas mixture, such that when the temperature in the outlet 13 falls beneath a predetermined value, the thermostat selected by the selector 24 will operate a relay 26 which will cut off the electrical supply to the valve 19 and so stop the gas flow. A switch 25 can cut out the whole system and will only permit operation of the system when the cooling system for the aviator's cabin is set at its coldest. The container 29 is fed from a well-known type of pressure build-up system incorporating a heat exchange coil 31, a pressure closing valve 32 and a filling, build-up and vent valve 33.
Patent GB-1217465-A (GB)
Title: Improvements in and relating to aerial flare bombs
Inventor: MAKOW ABRAHAM
IPC: F42B12/62
Filed: 1969-03-10
Abstract: 1,217,465. Aerial flare bombs. ISRAEL MINISTRY OF DEFENCE. 10 March, 1969, No. 12614/69. Heading F3A. An aerial flare bomb whose momentum is decreased with a rocket motor prior to opening a parachute, comprises a tubular rocket propellent 4; propellent igniting means (not shown); one or more nozzles (not shown) which, upon ignition of the propellent after release of the bomb, direct the propellent gases so as to decrease the momentum of the bomb; an illuminant composition 6 surrounding the propellent; a bomb tail assembly 3 including a parachute 24 coupled to the body of the bomb and located in a container 16 secured to the bomb body by shearable means 18; a pyrotechnic charge 26, which upon ignition, causes shearing of the shearable means and the release of the parachute; and ignition delay means 25 arranged to be initiated as a result of the combustion of the propellent so as to ignite the pyrotechnic charge after a predetermined time delay which corresponds substantially to the burning time of the propellent. The shearable means 18 are sheared by displacement of a piston 13 upon ignition of the pyrotechnic charge. The container 16 comprises a plurality of segments which carry fins 17 and which are secured together and to the body of the bomb by the shearable means 18. The segments are coupled together at the rear by means of a cover cap 19 secured thereto by further shearable means 20. Columns 21 attached to the piston transmit the motion of the piston to the cover cap, whereby the shearable means 20 are severed to detach the cap from the segments. A delay (not shown), ignitable by the hot propellant gases, is arranged to ignite the illuminant after the parachute has fully opened. The nozzle for directing the propellent gases is contained within a nose assembly 1 which is detached by the pressure of the propellent gases to uncover the nozzle.
Patent GB-861270-A (GB)
Title: Improvements in or relating to spray nozzles
IPC: B05B15/658
Filed: 1959-04-14
Abstract: 861,270. Spray nozzles. GOYETTE, F., and BEDARD, R. E. April 14, 1959 [April 23, 1958], No. 12693/59. Class 69 (3). A spray nozzle screwed in a pipe 10, e.g. for use in paper-making machines, comprises a body 12 with a bore 16 having a tubular cylinder 20 slidably mounted within it and a seat 30 which provides an obstruction, the tubular cylinder being held within the body by an H-shaped spring 50 and sealed by a washer 46. Liquid in the pipe 10 forces the cylinder 20, against spring action, into engagement with a conical surface 32 of the seat and emerges as a spray from a gouge 34. Whenever the nozzle becomes clogged, a temporary reduction of pressure in the pipe 10, sufficient to permit the spring to retract the tubular cylinder, provides a free flow of liquid past the seat 30 to wash away the obstructing material. The pipe may have several nozzles therein.
Patent GB-567446-A (GB)
Title: Rivets and riveting
IPC: F16B19/05
Filed: 1943-08-06
Abstract: 567,446. Riveting. NORTH AMERICAN AVIATION, Inc. Aug. 6, 1943, No. 12726. Convention date, July 31, 1942. [Class 83 (iv)] [Also in Group XXV] Sets and snaps.- Plates are connected by means of alloy steel rivet pins that are too hard to be upset, the effective head being formed by upsetting a malleable collar into a groove on the rivet. The rivet pin 10 has a preformed head and a groove 14 terminated by a shearing edge 16, the diameter of the edge being a few mils less than that of the pin to avoid damage to the edge during insertion of the pin. The collar 13 is closed on to the pin by a hollow snap 18 having the bore flared at 20. The snap carries an adjustable stop sleeve 21 that is set according to the length of the pin projecting so that at the close of the operation the end of the flared part of the bore coincides with the shearing edge. If the metal of the collar be in excess, such excess is sheared off by the edge 16 in the form of a ring that passes into the bore of the snap. The sleeve 21 may be dispensed with or may be integral with the snap. In modified forms of pin the domed end 15 may take a conical or truncated conical form.
Patent GB-873295-A (GB)
Title: New and improved reverberatory furnace
IPC: F27D13/00
Filed: 1959-04-15
Abstract: 873,295. Reverberatory tilting furnaces. SKLENAR, W. F. April 15, 1959 [April 16, 1958; May 21, 1958], No. 12778/59. Class 51 (2). In a reverberatory tilting furnace for melting metals, the stepped roof comprises blocks 104 suspended on girders 106 removably supported on the furnace side walls, and a combined flue and charging shaft 110 has a removable wall 108 adjacent said roof comprising blocks 112 set in a metal frame 116 with lifting hooks 118. The blocks 112 may be replaced by a unitary wall. The furnace shell 22 includes arcuate supports 24 with tracks 32 engaging rollers 28, said supports being rocked by a power cylinder 34. A blower 36 supplies a fuel/air mixture to one or more burners disposed in a burner block 42 and heating a space defined by the stepped roof and a baffle assembly 74 disposed above the hearth 48. The baffle assembly comprises rabbeted panels 80 of nickel alloy castings embedded in the side walls, the central panel being provided with a semi-conical portion 78 above the pouring spout 70. Modified baffles, Figs. 14-16 (not shown), comprise refractory, e.g. silicon carbide, tiles with tongue and groove joints and recessed centres. Metal charged through the shaft 110 on to the arcuate hearth 50 melts rapidly, collecting on hearth 48.where it is heated indirectly from the baffle assembly 74.
Patent GB-171419-A (GB)
Title: Improvements in means for preventing the capsizing of rowing and other boats
IPC: B63B27/14
Filed: 1921-03-08
Abstract: 171,419. Nicklin, T. March 8, 1921. Air casings.-In a boat fitted at each side with an inflated rubber tube a fixed in brackets d or the like, secured to the shell, shields h, located below the gunwales, cover the top and sides of the tubes, and serve as platforms for entering and leaving the boat.
Patent GB-681746-A (GB)
Title: Improvements in and relating to electromagnetic relays
Inventor: ROST HELGE FABIAN
IPC: H01H47/22
Filed: 1950-05-23
Abstract: 681,746. Electrically-released switches. INGENJORSFIRMAN, H. F. ROST & SONER. May 23, 1950, No. 12939/50. Class 38 (v) A relay with a yoke and armature of soft iron has its core of a material of such retentivity and coercive force that after interruption of the operating current the armature is retained by remanent magnetism but if the armature is then mechanically "released" and restored, it will then no longer be retained. Carbon steel of approximately 0.35 per cent carbon is suitable. In the arrangement shown in the figure operation of a relay R<SP>11</SP> completes a circuit to the relay R<SP>10</SP> of the invention. Later operation of a reversing switch R<SP>12</SP> causes a reverse demagnetizing current to flow through the relay R<SP>12</SP> through a resistance 13. In a modification, Fig. 5 (not shown) the relay closes contacts through which, later on, the demagnetising current flows. In another modification the relay has two coils one for operating and one for releasing.
Patent GB-252877-A (GB)
Title: Improvements in spinning, doubling, and twisting machines used in the production of yarns or threads
IPC: D02G3/36
Filed: 1925-05-19
Abstract: 252,877. Sutcliffe, R. L. May 19, 1925. Rollers and roller heads; roving and thread guides.-Grooved pulleys 7 are mounted between the carrier rollers 5, 6 and the front rollers 3, 4 of spinning, doubling, twisting, and like machines, especially for yarns of hair or like springy fibres, so as to conduct the material in a close formation to the front rollers and to facilitate the feeding of the binding-thread 12 when such is used. The grooves of the pulleys are preferably acute and all the pulleys are mounted on a bar which is reciprocated by any known mechanism. Two or more pulleys may be provided for each yarn. The Provisional Specification describes an arrangement wherein the bowls are mounted with their axes vertical.
Patent GB-143234-A (GB)
Title: Improvements in or relating to portable radiators
IPC: F24H3/00
Filed: 1920-05-11
Abstract: 143,234. Morice, G. A. M. April 7, 1919, [Convention date]. Radiators. - In a steam-radiator of the type in which steam is generated in a boiler b under the radiator elements c, the elements are open to the atmosphere through openings f at the top, allowing the steam to be maintained at atmospheric pressure. The boiler is filled through an inlet e and heated by a burner a. The steam generated ascends the radiator elements, is condensed, and returned to the boiler.
Patent GB-131866-A (GB)
IPC: A24F9/10
Abstract: 131,866. Bilton, M. Aug. 6, 1919. Drawings to Specification. Cleaners for tobacco pipes.-A bowl-scraper comprises a plug of wood or other material provided with a rim, lugs, thumb-piece, or the like for rotating by hand and having its surface covered with sand paper, powdered glass, emery, carborundum, or other abrading-material.
Patent GB-132218-A (GB)
IPC: A01K31/02
Abstract: 132,218. Darracott, W. A. June 2. 1919. Poultry houses.-The door b of a poultry house is hinged at the bottom to a lever d which is pivotally supported at e and carries a perch g at its inner end. The door is held in its closed position. by an eye h engaging over a pin i. When the birds depress the perch g in attempting to escape, the door b is lifted until the eye h is disengaged, and then falls open.
Patent GB-458344-A (GB)
Title: Improvements in or relating to advertising devices
IPC: G04B47/00
Filed: 1936-05-11
Abstract: 458,344. Advertising device. EBERLE, E., 35A, Alexanderstrasse; Stuttgart, Germany. May 11, 1936, No. 13227. [Class 3 (i)] An advertising pillar comprises one or more television screens a located at its upper part and a radic sound reproducer disposed in a housing b above the screens a. Advertising matter is displayed at e and a clock d surmounts the pillar.
Patent GB-437503-A (GB)
Title: Improvements in and relating to electric fuses
IPC: H01H85/42
Filed: 1935-05-03
Abstract: 437,503. Cut-outs. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 3,1935, No. 13243. Convention date, May 5, 1934. [Class 38 (i)] In an expulsion fuse, the strain wire 16 is electrically connected by a bolt 25 to one end only of the fusible link, the mechanical connection to the other end being by means of a bolt 22 and an insulating plate 29. When the fusible link melts, an arc strikes to the strain wire and ruptures it in a much shorter time on small overloads than that taken for the fusing of a strain wire arranged in the usual way. The disc 33 which closes the lower end of the fuse is driven out when the fuse blows and so serves as an indicator.
Patent GB-828214-A (GB)
Title: Improvements in and relating to methods of producing fibrous structures impregnated with adhesives
IPC: D04H1/645
Filed: 1956-04-30
Abstract: 828,214. Laminates; agglutinated fibrous sheet materials. FREUDENBERG KOMMANDIT-GESELLSCHAFT AUF AKTIEN, C. April 30, 1956 [Sept. 22, 1955], No. 13272/56. Class 140. Material of great surface and marginal hardness and at the same time good compressibility is produced by impregnating a fleece in which only fibres, other than glass fibres, in random directions are present with an aqueous natural or synthetic rubber latex containing vulcanizing agents so as to incorporate 45 to 70% by weight of said latex, subjecting the resulting fleece to heat to vulcanize the latex, superimposing several sheets of the product and subjecting them to heat and pressure. In an example, a web of nylon waste is impregnated in two stages with a foamed aqueous dispersion of natural rubber containing tetramethyl thiuramdisulphide, zinc oxide, sulphur, phenyl betanaphthylamine and a wetting agent, dried and vulcanized; four sheets of this material are pressed together under 100 kg/cm<SP>2</SP> pressure for 20 minutes at 155 ‹ C. The sheets may be further impregnated with a solution of a water-soluble melamineformaldehyde resin before subjecting to heat and pressure. Specifications 488,394, 505,801, 716,178, 728,865 and 774,790 are referred to.
Patent GB-494659-A (GB)
Title: Improved regeneratively heated coke oven
IPC: C10B21/16
Filed: 1938-05-04
Abstract: 494,659. Coke - ovens. OTTO & CO., GES., DR. C. May 4, 1938, No. 13286. Convention date, June 16, 1937. [Class 51 (ii)] In a vertically-flued regenerative coke oven openings k are provided in the heating-wall heads giving access to the dampers j by which the supplies of lean gas and air from the regenerators to the end heating flues are controlled. In the twin flue oven shown further openings closed by wedge-shaped plugs o, and arranged in line with the openings k, are provided in the partition wall between the two end flues b<1>, b<2> to allow manipulation of the dampers in the flue b<2>. The openings k pass obliquely through the head wall from opposite sides of the usual buckstay p.