baber/WOPTO huggingface dataset:
Patent GB-712498-A (GB)
Title: Devices for clamping workpieces of web and flange section
Inventor: DARGE WILLIAM
IPC: B23K37/04
Filed: 1951-10-19
Abstract: 712,498. Welding by pressure ; work-holders. RESISTANCE WELDERS, Ltd. Oct. 17, 1952 [Oct. 19, 1951], No. 24483/51. Classes 83 (3) and 83 (4) A device for clamping a metal section having a web and a flange, has two fixed surfaces at right angles to each other to engage two surfaces of the section and two movable clamping members each acting to urge the section against one of the fixed surfaces, the clamping members being brought into action one after the other by the introduction of fluid to a single fluid pressure motor. In an embodiment a clamping device, two of which are provided on a resistance welding machine for welding window frames, one on the movable head and one on the fixed, has fixed surfaces 12, 13 on a block 11. Co-operating with these are two heads 19 on levers 17 pivoted at 18 to a base 10 and a jaw 27 on an arm 24 pivoted at 25 in blocks 26 sliding horizontally in guide surfaces in the base. Arms 33 pivoted at 34 to the base and arms 32 pivoted at 39 in blocks 41 sliding horizontally in guides in the base are pivoted together and to a head 35 at 34a. Levers 31 are pivoted to the blocks 41 at one end and to the pivot 25 at the other. The rod 55a of a piston 55 in a cylinder 36 is screwed to the head 35 and the cylinder 36 has lugs 56 with pins 57 which engage in slots 58 in lugs on the base. In the closed position shown in the Figure the heads 19 are held on to a workpiece at right angles to the arm 24 by springs 20 acting on the lever 17 while the jaw 27 is held on the workpiece by pressure exerted by the rod 55a. To release the clamp fluid is admitted to the bottom of the cylinder to cause the cylinder to move downwardly relative to the piston to move the pins 57 towards the bottom of the slot 58. In so doing the pins engage the levers 17 and rotate them to release the work. The piston is raised and in turn the pivot 34a. The toggle is moved to cause the arms 31 to push the pivot forwardly, surfaces on the arm 24 sliding on surfaces 29 and 52 on the base. The jaw 27 releases the work and the arm 24 continues to move horizontally until pins 37 on the arm 24 engage stops 38. Further movement of the levers 31 rotates the arm 24 about the pins 37 to raise the arm 24 to an inclined position. Fluid now admitted to the top of the cylinder causes firstly the cylinder to rise until the pins 57 reach the top of slot 58 to allow the springs 20 to press the' heads 19 on the work and further fluid lowers the piston and hence pivot 34a to straighten the toggle and move the arms 31 rearwardly. The arm 24 is rotated until it reaches the horizontal and is then pulled rearwardly so that jaw 27 clamps the work. The pivot 34 is eccentric to adjust the position of the piston rod relative to the arm 24. The fluid supply to the two cylinders on a welding machine may be supplied from a common valve.
Patent GB-889830-A (GB)
Title: Improvements relating to the manufacture of cellular insulated wire
IPC: H01B13/06
Filed: 1958-07-30
Abstract: Porous plastic coatings are obtained from a mixture of polythene and sulphonyl hydrazine in toluene, by applying the solution to, e.g. electrical conductors, driving off the solvent before decomposing the blowing agent, and then, before substantial softening of the resin, heating at a temperature sufficient to decompose the blowing agent, but stopping such heating before the gases break through the coating. Rapid cooling after cell generation prevents gas break through. Further coatings may be applied.ALSO:Porous polythene coatings are formed on, e.g. electri<\>gcal conductors, by applying a mixture of polythene and sulphonyl hydrazide in toluene to the conductor removing the solvent without decomposing the hydrazide, and then, before substantial softening of the polythene, heating at a temperature sufficient to decompose the hydrazide, but stopping such heating before the gases break through the coating.  Rapid cooling after cell generation prevents gas break through.  Further coatings may be applied.ALSO:Porous plastic coatings are formed on articles, in particular electrical conductors, by applying to the surface of the article a solution of a synthetic resin containing also a blowing agent, driving off the solvent at a temperature below that required to decompose the foaming agent, and then, before substantial softening of the resin heating at a temperature sufficient to decompose the foaming agent, but stopping such heating before the gases break through the outer skin of the coating.  Rapid cooling after cell generation prevents break through of gases.  Further coatings may be applied.  The example describes a copper wire coated with a polythene -sulphonyl hydrazide mixture in toluene.
Patent GB-772622-A (GB)
Title: Improvements in or relating to dry rectifier assemblies
IPC: H01L25/03
Filed: 1954-08-23
Abstract: 772,622. Dry rectifiers. SIEMENS-SCHUCKERTWERKE AKT.-GES. Aug. 23, 1954 [Aug. 22, 1953], No. 24536/54. Class 37. A dry rectifier arrangement comprises a parallel faced holder of insulating material with an aperture extending between said faces and containing a stack or stacks of rectifier elements urged towards one end of the aperture by means contained therein and retained in position by electrically conducting members, one on each face. These members which close the ends of the aperture are each secured to their respective faces at two points on opposite sides of the aperture. Alternatively, several apertures are used, each having its own two conducting members, or where all the apertures lie on a straight line a common conducting member covering all the apertures and fixed to the face at two points on opposite sides of the line, may be used on one or both faces. In the embodiment, a holder 1 with a single aperture 2 is shown. Conducting members 5, 6 covering  the respective ends of aperture 2 are formed with two holes engaging projections formed on the holder which are thermally deformed to fix members 5 and 6 in place. Good electrical contact between the rectifier elements 3 forming the stack and between the stack and members 5, 6 is ensured by a spring 4 which presses the stack against member 6 and itself provides the electrical connection between the stack and member 5. Specification 749,714 is referred to.
Patent GB-186902-A (GB)
Title: Improvements in electrically driven periodically moving mechanisms
IPC: G04C3/18
Filed: 1922-09-11
Abstract: 186,902. Jamin, C. D. J'. Oct. 4, 1921, [Convention date]. Trays, dishes, and containers, rocking.-In periodically moving mechanism such as washing troughs for photographers, the controlling member, which may consist of a pendulum, balance wheel &c. or the spring or weight operating the periodically moving mechanism, is periodically driven or wound up by means of the deformations of a conducting member which is heated, with the periodicity of the contrclling member, by electric current. Fig. 1 shows its application to a clock. The conducting member 9 is secured to, but insulated from, an arm 8 pivoted at 7 and having a spring 6 bearing on the pendulum 1. When the pendulum swings to the left the electric circuit is closed through a wire 11, contacts 4, 5, conducting member 9 and wire 12. The conducting member 9 is thereby heated and expands, and the arm 8 rotates anticlockwise under the influence of the spring 6. On the swing to the right the pressure by the pendulum on the spring 6 increases the tension on the member 9 and immediately the pendulum passes through its mid position the circuit is broken and the member begins to cool and contract. The next swing of the pendulum to the left is assisted by the increased tension of the spring 6. In the modification shown in Fig. 2, two contacts 4, 5 and 13, 14, one on each side of the pendulum, are shown. The contacts 13, 14 are arranged in a shunt circuit 15 having a resistance in it. The circuit 15 may be used either for operating one or more secondary clocks by current impulses, the mechanism driving the hands of the clock, or for doubling the driving force by means of a second symmetrically-positioned conducting member. In other modifications the conducting member is attached to two fixed points and consists of a wire or spiral spring, a spring attached to the pendulum bearing on the conducting member and serving to transmit the forces due to the deformations to the pendulum. The conducting member may be bi-metallic to increase the deformation due to heating. In other arrangements the deformation of the conducting member cause the spring or the weight operating the mechanism to be periodically operated, wound up, or impelled..
Patent GB-649679-A (GB)
Title: Improvements in lifting and securing devices
IPC: B66F9/02
Filed: 1948-09-21
Abstract: 649,679. Maintaining an object in an elevated position. JONES, J. H. Sept. 21, 1948, No. 24646. [Class 78 (v)] An apparatus for maintaining objects in elevated positions comprises a rigid member 11 adapted to be positioned below a pulley 15 over which pulley is adapted to pass a rope 20 carrying the object 16 to be raised, which member is so shaped at its lowest point 11a that the object 16 as it is raised from below comes into contact with a sloping face 11x of the member, and is then guided to a higher supporting por. tion 11c of the member face, which portion is offset from the vertical end of the rope and is adapted to support the object hanging freely, and which member is also so shaped that the object when raised from said supporting portion up the vertical face 11y to the top 11b of the member passes over the said top of the member and thereafter may be lowered down the opposite face of the member to the ground. As shown, the object 16 is raised by means of rope 20 passing over pulley 15 which is journalled in plates 14 fixed to angle brackets 13 secured to a vertical fixture. As the object is raised it contacts the twin cam plates 11 which are fixed to the angle brackets 13. As the object meets the lowest point 11a of the cam plates 11 it slides along the inclined face 11x until it lodges in notches lie. It can then be lowered by first being raised from out of notches 11c up to the top point 1<1>6 of the plates 11, at which point the object swings to the right and descends down the opposite face of the plates. May be used for clothes-racks &c.
Patent GB-1272598-A (GB)
Title: Improvements in and relating to carcase cutting apparatus
Inventor: HARVEY PETER DEREK
IPC: A22C21/00
Filed: 1969-05-14
Abstract: 1,272,598. Severing hocks from poultry carcases. ROSS POULTRY Ltd. 9 June, 1970 [14 May, 1969], No. 24651/69. Heading A2U. Apparatus for severing the hocks of poultry comprises a pair of relatively movable plates each with at least one V-shaped cut-out portion constituting two cutting edges and arranged to form a diamond-shaped aperture with a V- shaped portion of the other plate, the arrangement being such that a knuckle joint may be located by the edges of a V-shaped portion so that it is severed between the ball and socket of the joint when the diamond-shaped aperture is diminished in size by relative movement of the plates. As shown, a plate I fixed to a frame 9 has two V-shaped portions 3, 4 opening at its upper edge, and a movable plate 2 slidable behind the plate 1 in guides 10, 11 has corresponding V-shaped portions 5, 6 at its lower edge, all of the V-shaped portions being chamfered to provide cutting edges. A preferably transparent guard 25 with apertures 26, 27 is provided in front of the plates, and the plate 2 is connected by a rod 12, urged upwardly by a spring 16, to foot operating means. Operation may, alternatively, be by hand or automatically. The plate 2 may be locked in the closed position by a member 23. The rear of the apparatus is fitted with a guard (not shown) and a sloping plate 28 for the conveyance of severed hocks.
Patent GB-338189-A (GB)
Title: Improvements in or relating to electric motor control apparatus
IPC: H01H21/26
Filed: 1929-08-13
Abstract: 338,189. English Electric Co., Ltd., and Morris, F. Aug. 13, 1929. Controllers, actuating.-Remote control apparatus for a drum controller comprises pneumatically or electromagnetically-operated notching and holding pawls interlocked at a common operating pedal and arranged so that the holding pawl controlling means are operated before, and disengaged after, the notching pawl controlling means. The holding pawl and the notching and holding pawl mechanism form the subject of Specification 340,031. In the form shown, the holding pawl 4 is operated by rocking the lever 6 by the piston 7 which is actuated by compressed air through the normally closed valve 12 (Fig. 2) during the first part of the stroke of the pedal 18. Further depression of this pedal actuates tappet 20 admitting air to the piston 3 which operates the notching pawl. The pedal 18 is arranged so that the notching pawl moves the controller, which is biassed clockwise towards off. position, one notch for each depression of the pedal, but the holding pawl is not released until the pedal is fully lifted. The controller passes through the same steps for braking, a separate pedal, interlocked with the controller so that it can only be operated when the controller is in the off position, being provided to actuate the power-to-brake change-over switch. Electromagnets or fluidoperated motors may be used to operate the notching mechanism, and the pedal may operate contacts to control the electromagnets or the valves for fluid pressure operating devices. Specification 313,268 is referred to.
Patent GB-719005-A (GB)
Title: Improvements in hair clippers
IPC: B26B19/04
Filed: 1952-10-03
Abstract: 719,005. Hair clippers. PAOLI, M. DE. Oct. 3, 1952 [Oct. 17, 1951], No. 24818/52- Class 131 [Also in Group XXII] A hair clipper comprises an inner tubular comb member slidable within a fixed outer tubular comb member, the cutting. portions of the members being formed by two co-operating straight surfaces forming an acute angle and the fixed member having a non-cutting projection from its vertex edge portion. As shown, contact between the cutting teeth 9, 10 is limited by cranking the sides at 12, 13 and the teeth 9 each have a non-cutting projection 14. The inner member is operatively connected to a rocker 4 by a cushioning member 5 and urged into cutting co-operation by a spring 6, the members being ground or ground-in to ensure contact at the vertex portions. A suitable blank and steps in the bending of the blank to produce either an inner or an outer comb member are described.
Patent GB-699510-A (GB)
Title: High-frequency electrical energy absorbing devices
Inventor: KELLIHER MAURICE GORDON
IPC: H01P1/26
Filed: 1952-10-03
Abstract: 699,510. Wave-guides. MULLARD RADIO VALVE CO., Ltd. Oct. 3, 1952. No. 24823/52. Class 40 (viii). A high-frequency energy-absorbing device comprises a hollow rectangular wave-guide section consisting of two parts 1 and 2 inclined at an angle to each other, and a straight insulating tube 9 passing centrally through the free end of part 2 and out through a wall of part 1. Liquid of high dielectric loss such as tap water or brine flows through tube 9 which may be made of glass. In a modification the waveguide section may comprise three sections all disposed at an angle to each other. The angles between the sections may be 135 degrees. The drawing omits a large part of section 2 which causes the ends of tube 9 to appear out of line though this is actually not the case.
Patent GB-374711-A (GB)
Title: An improved method of and means for assembling screened wireless receiving apparatus
IPC: H05K9/00
Filed: 1931-09-04
Abstract: 374,711. Wireless receiving a p - paratus. MONTAGUE, D. and MONTAGUE, S., 126, Walm Lane, Willesden Green, London. Sept. 4, 1931, No. 24920. [Class 40 (v).] A screened wireless receiving set assembly comprises a main base member 1 and a series of screen members 11, 22, 10, 9 shown in Figs. 4 and 5. The components particular to the members are wired up before assembly, the wiring being completed by a few final connections after the complete chassis is assembled. The base 1, which is cut away at 1a for the mounting of transformers 6, Fig. 1, has downwardly bent lugs 5, 7a, Fig. 4, which provide a wiring space beneath, an insulating sheet 26 being eyeleted at 8 to the base. The various screens are assembled as shown in Fig. 5, the whole being secured to the base 1 by lugs 9a, 10a, 11a. The top of the compartment thus formed by 11, 20, 9 and 6a is closed by the metal sheet 25. The member 20 carries the panel 19, Fig. 1.
Patent GB-819237-A (GB)
Title: Improvements relating to waistbands
IPC: A41F11/00
Filed: 1957-08-07
Abstract: 819,237. Garment waistbands. HANNOVER, H. Aug. 7, 1957 [Aug. 7, 1956], No. 24928/57. Class 141 [Also in Group IX] A garment waistband is made of two-ply fabric comprising a flexible face weave B and a backing weave E of buckram &c., with longitudinal rubber bands C woven through both plies so as to be exposed on the face B. An edge portion A comprises an extension of the face weave B. Decorative motifs D may be woven into the central part of the face ply and transverse pockets. Fig. 3 (not shown) may be provided between the plies for receiving stiffening strips of synthetic resin.
Patent GB-1221266-A (GB)
Title: Improvements in cutter devices for flaying
IPC: A22B5/16
Filed: 1969-05-16
Abstract: 1,221,266. Flaying apparatus. SCHMID & WEZEL. 16 May, 1969 [25 June, 1968], No. 24957/69. Heading B4B. Animal carcasses are flayed to part their skins by a cutter device comprising a pair of juxtaposed coaxial toothed discs 3, 4 arranged partially within a slot formed between housing parts 1, 2 and caused to oscillate rotatably about their common axis by eccentric drive means (not shown), the device including sealing means for preventing ingress of foreign matter into the drive means and consisting of resilient sealing strips 9, 10 arranged in grooves in the respective housing parts 1, 2, plus a further resilient strip (14, Fig. 1, not shown) arranged in a groove 13 between the housing parts 1, 2, the strips 9, 10 each extending from the inner end of the slot at one side of the housing via an intermediate portion which is parallel to the disc peripheries to the inner end of the slot at the other side of the housing. Protuberances on the ends of the strips 9, 10 engage each other in the gaps between the discs and the inner end of the slot.
Patent GB-1317267-A (GB)
Title: Central heating radiator combined with a convector space heating means
IPC: F28D1/03
Filed: 1970-05-22
Abstract: 1317267 Space heaters ETABS CHEVALIER & BERTRAND 22 May 1970 [23 May 1969] 24967/70 Heading F4S In a central heating radiator adapted also for convector space heating, U-shaped fins 4 are secured by their base portions to a hot-water panel 1, and L-shaped capping members 6 are secured at the fin ends and define with said fins a plurality of convection-air conduits 8, the capping members together providing also a flat heat-radiating front surface of the apparatus. As shown, one limb 6a of each capping member extends between adjacent fins and is attached to the panel 1. U-shaped fins may also be attached to the rear face of the panel 1 as indicated. Removable capping members 9 are provided at the ends of the assembly which is attached by bolts 15 to a wall 13. Two or more of the radiator/convectors may be coupled by piping to form a larger unit (Fig. 4).
Patent GB-905680-A (GB)
Title: Vinylidene interpolymer latices
Inventor: LINDSTROM MARY DAWN
IPC: C08F220/06
Filed: 1959-07-21
Abstract: An aqueous latex of an interpolymer from (a) 12 to 58% by weight of a fumaric ester having a total of 6 to 32 carbon atoms in the ester group or groups, or a mixture thereof, (b) 1 to 5% by weight of acrylic acid or an alpha or beta methyl or phenyl acrylic acid, or a mixture thereof, and (c) 41 to 87% by weight of a monovinylidene aromatic hydrocarbon or halohydrocarbon or a C1-C3 alkyl methacrylate, or a mixture thereof, is made by continually adding an aqueous composition containing a polymerization catalyst and an emulsifying agent to a charge of water in a reaction vessel maintained under polymerization conditions, during the first part of such addition gradually adding a part of monomer (c) amounting to 10 to 60% of the total monomers to be charged, gradually adding the remainder of the monomers thereafter and maintaining the whole at a polymerizing temperature until the reaction is complete.  A part of monomer (c) may be replaced by 3 to 20% by weight of the interpolymer of acrylonitrile and/or methacrylonitrile.  Monomers specified are: (a) dibutyl, butyl octyl, dioctyl, methyl decyl, methyl octadecyl, didecyl, di-2-ethylhexyl and dihexadecyl fumarates, (b) acrylic, methacrylic, cinnamic, atropic and crotonic acids, and (c) styrene, alpha-methylstyrene, alpha-methyl-p-,methylstyrene, p-methylstyrene, m-ethylstyrene, p-chloro- and p-bromo-styrenes, p-isopropylstyrene, 2,4- and 2,5-dichlorostyrenes and vinyl naphthalene, and methyl ethyl and propyl methacrylates.  Catalysts specified are benzoyl, lauroyl and ditertiary butyl peroxides, cumene hydroperoxide, potassium persulphate, azobisisobutyronitrile and redox catalysts, e.g. potassium persulphate+sodium bisulphite, hydrogen peroxide+ferrous sulphate and hydrogen peroxide+ferric sulphate+sodium pyrophosphate. Emulsifiers specified are alkali metal and amine salts of rosin acids, alkali metal salts of long chain alkyl sulphates and sulphonates and ethylene oxide condensates of long chain fatty alcohols, fatty acids and mercaptans; preferred is a mixture of a condensation product of ethylene oxide and tridecanol or octyl phenol and an alkali metal salt of an aralkyl polyether sulphate.
Patent GB-511651-A (GB)
Title: Improvements in and relating to automatic voltage regulating equipments
IPC: G05F1/14
Filed: 1938-08-25
Abstract: 511,651. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd: Aug. 25, 1938, No. 25029. Convention date, Aug. 26, 1937. [Class 38 (iv)] Electromotive force.-An automatic voltage regulating system comprises motor driven transformer tap-changing apparatus in which energisation of the tap changing motor is controlled by switch contacts operated by a rotary apparatus connected to a rejector circuit comprising a parallel arrangement of a saturable choke and a condenser energised in accordance with the voltage to be controlled. The rotary apparatus may be a dynamometric system, a Ferraris system or an asynchronous motor having two windings in the circuit of one of which the rejector circuit is placed.
Patent GB-1256417-A (GB)
Title: Pyrethroid insecticide
IPC: A01N53/10
Filed: 1969-05-16
Abstract: 1,256,417. Insecticides comprising pyrethroids. S. C. JOHNSON & SON Inc. 16 May, 1969 [31 May, 1968], No. 25234/69. Heading ASE. An insecticide comprises an insecticidally effective amount of at least one pyrethroid and at least one sorbitol ester of a fatty acid (as defined). The pyrethroid may comprise pyrethrum extract or a synthetic pyrethroid such as allethrin, cyclethrin, neopynamin, furethrin and dimethrin. A synergist for the pyrethroid may also be present and piperonal bis- [2-(2-butoxyethoxy) ethyl] acetal, piperonyl butoxide, safrole, iso-safrole and various derivatives thereof are specified as being useful. The composition may be in the form of a spray or aerosol.