baber/WOPTO huggingface dataset:
Patent GB-410262-A (GB)
Title: Improvements in and relating to systems of electric welding
IPC: B23K11/04
Filed: 1933-01-13
Abstract: 410,262. Electric welding. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricatats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Jan. 13, 1933, No. 1207. Convention date, Jan. 15, 1932. [Class 83 (iv).] In electric flash welding, the feed movements of the movable work piece are effected at a constant speed throughout the welding operation. After being connected to the welding current, the movable part is fed at constant speed until the parts abut, whereupon they are resistance heated. A relay or like then acts to reverse the movement until the parts are again separated. These operations are repeated until the parts fuse, whereupon after a predetermined time the parts are upset so as to weld them together and the current is cut out by an end or stop contact. The feed movement may be between 2 and 5 m.m. per sec.
Patent GB-471462-A (GB)
Title: Improvements relating to the treatment of hydrocarbon gases
IPC: C07C7/148
Filed: 1937-01-15
Abstract: Unsaturated hydrocarbons are separated from gas mixtures containing also saturated hydrocarbons by passing the gases through a solution obtained by treating a strong aqueous solution of a bromide with chlorine in excess of the stoichiometrical quantity required to liberate the bromine.  It is stated that the layer of free bromine first formed disappears giving a colourless solution, probably owing to the formation of a compound chlor-bromine.  The hydrocarbon gas is passed through the solution in the form of very fine bubbles, preferably at temperatures of 5--20 DEG  C. and at pressures lower than 25 lb. sq. inch.  Gas mixtures obtained from the cracking of petroleum and the like may be treated, giving mixtures of saturated hydrocarbons, e.g. methane, ethane, propane, butane, pentane etc. and halogenated hydrocarbons, e.g. ethylene dibromide or chlor-bromide, propylene dibromide or chlor-bromide etc.  Mixtures of chlor-bromhydrocarbons thus formed may be separated by fractional distillation.  They may be mixed with the bromides or chlorides, depending on the amount of chlorine originally used to treat the aqueous bromide solution.ALSO:When a strong aqueous solution of a bromide is treated with chlorine in excess of the stoichiometrical quantity required to liberate the bromine, it is stated that the layer of free bromine first formed disappears, giving a colourless solution, probably owing to the formation of a compound chlor-bromine.
Patent GB-285365-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1928-01-14
Abstract: 285,365. Associated Telephone & Telegraph Co., (Assignees of Bellamy J. I., and Stehlik, R. F.). Feb. 14, 1927, [Convention date]. Automatic exchange systems.-In a group selector of the Strowger type. the vertical magnet is connected by the line relay in series with a high-resistance guard relay which is short-circuited or shunted each time the line relay falls back, the magnet then being energized over a locking contact of the guard relay. As shown in Fig. 1, the guard relay B1 is energized by relay A1, locks itself up under control of relay E1, and is shunted, on each relapse of A1, by the low-resistance slow-release change-over relay C1 At the end of a digit, relay C1 falls back and hunting takes place as usual by interaction of the stepping relay D1 and rotary magnet RO1, and when an idle trunk is found relay E1 switches the connection through and opens the locking circuit of B1, which however is sluggish to fall back because on the relapse of A1 it is again shunted by C1 Relay C1 may be connected across terminals 3 instead of 2, in which case it is included in the initial circuit of B1, but is not energized on account of its low resistance, or it may be connected across terminals 4 or 5. In all these cases the relay C1 is short-circuited except at moments when A1 falls back, and it need not therefore be coppered. When connected in position 5 the relay C1 is energized in series with the release magnet RL1 and energizes relay D1 to ground the guard circuit 21 during release. A modification is described in which the change-over relay is made slow to release by a shunt resistance and is controlled by an additional spring-group on the line relay, being connected in parallel with the vertical magnet when the line-relay is de-energized and open-circuited when the line relay is erergized. In the further modification shown in Fig. 3, the relay C3 is permanently in parallel with the magnet V3, this connection having the effect of making the relay sufficiently sluggish, and a second winding is included in the release circuit so that C3 and D3 are energized during release to ground the wire 23.
Patent GB-880080-A (GB)
Title: Method of producing a stack of sheet metal plates
IPC: H01F41/02
Filed: 1960-01-13
Abstract: A hardenable metal modified epoxide resin consists of a compound of an epoxide resin containing not more than one hydroxyl group in the molecule and having an epoxide equivalent between 165 and 400, with an o-titanic acid tetraalkyl ester.  In another example the resin consists of an organo-metallic glycidyl polyether representing a compound of 0,1 to 40 parts by weight of the ester of a semi-metal acid with a 100 parts by weight of a glycidyl polyether having an epoxide equivalent under 400 and less than 1 hydroxyl equivalent per kilogram.
Patent GB-346675-A (GB)
Title: Improvements in or relating to furnace grates
IPC: F23H17/12
Filed: 1930-01-14
Abstract: 346,675. Firebars and grates. GOTHARD, H. A. S. and GOTHARD, S. C., (trading as G. K. S. COMBUSTION CO.), 11, St. Mary-at-Hill., London. Jan. 14, 1930, No. 1356. [Class 51 (i).] The bars of a stationary or travelling grate are made of T-section with sinuously curved slots a formed on the upper surface b and lying at an inclination to the sides of the bar. The slots in each bar are staggered in relation to the slots in adjacent bars and elongated air spaces f are formed between the bars. The upper surface of the bar may be recessed as indicated at g for collecting ash.
Patent GB-523811-A (GB)
Title: Improvements relating to audiphones or bone conduction telephone instruments
IPC: H04R1/14
Filed: 1939-01-14
Abstract: 523.811. Deaf aids. KOCH, H., and DICTOGRAPH PRODUCTS CO., Inc. Jan. 14, 1939, No. 1362. [Class 40 (iv)] A bone-conduction audiphone has a vibrating system comprising two members (e.g., the permanent magnet and its armature) connected by a stiff. spring member, one member being secured to the instrument casing and the other member being connected to a contact member which forms part or the whole of one wall of the casing, the arrangement being such that the vibrations of both the contact member and the casing are conveyed to the bone structure. As shown in Fig. 2, the reed or armature 22 secured to the face plate 11 of the casing 10 carries the permanent magnet 25 to which is secured a pole-piece 26 surrounded by -a speech-coil 27. A button 12 projecting slightly beyond the face plate 11 is adjustably connected to the magnet 25. In a modification, Fig. 3 (not shown), the magnet is attached to the reed by a spring strip and the threaded shank of the button is additionally secured to a cantilever spring mounted on the reed so that adjustment of the air gap between the reed and pole-piece can be effected. In further modifications the permanent magnet is secured to the casing and a button projecting through the face plate is carried by the reed, Fig. 4 (not shown), or a plate carried by the reed is recessed within the casing. Fig. 6 (not shown). In a further modification, Fig. 5, the reed 54 carries the face plate 56 which is separated from the bodv 53 of the casing by a thin ring 57 of soft rubber, felt or similar resilient material. The ends of the coil 27 are preferably connected to contact plates 29 engaged by springs 30 engaged by plungers 31 which project into apertures, 32 for the prongs of a connecting cord from a microphone circuit.
Patent GB-632033-A (GB)
Title: Improvements in or relating to devices for limiting electric current supply
IPC: H02H9/02
Filed: 1948-01-16
Abstract: 632,033. Protective cut-out systems; electromagnetic switches; thermal switches. P. A. M., Ltd., and HOLT, H. B. W. Jan. 16, 1948, No. 1363. [Class 38(v)] In a current-limiting device, a resistance wire 10 in series with the load is adapted, on overload, to cause a metal strip 4 to bow away from a contact 7 thereby removing a short circuit from a coil 18 of low impedance and causing an armature 23 to move about its pivot 22 and open contacts 32, 33 short circuiting a high impedance coil 19 which acts to retain the armature in its attracted position ; the coil 19 is also in series with the load and cuts down the current so much that the contacts 7, 11 reclose and cut out the coil 18. The parts can only be brought back to their original position in which full power was applied to the load by opening the load circuit and so de-energizing the coil 19. The electromagnetic switch includes a magnetic shunt 20 and the contacts are operated by the end of the armature 23 pressing 'back the inclined end 34 of the spring 29.
Patent GB-1237065-A (GB)
Title: A plant for the production of corrugated sheets from fibrocement, particularly asbestos-cement
Inventor: NEIFELD MARK SOLOMONOVICH
IPC: B28B11/08
Filed: 1969-01-09
Abstract: 1,237,065. Moulding plastic substances. SPETSIALNOE KONSTRUKTORSKOE BJURO PO OBORUDOVANIJU DLYA PROIZVODSTVA ASBESTOTSEMENTNYKH IZDELY I RULONNO - KROVELNYKH MATERIALOV SKB ASBOTSEMMASH. 9 Jan., 1969, No. 1401/69. Heading B5A. [Also in Division B8] A plant for producing stacks of corrugated sheets from, for example, asbestos-cement, includes a number of working stations interconnected by conveyers, the stations comprising in turn, means for rolling a web of such material, means for cutting it into sheets, means for corrugating the sheets, means for piling the corrugated sheets and means for heat treating the piles, and is characterized in that, following the heat treatment, the sheets are transferred singly from the piles to a horizontal conveyer which feeds them to a stacking device from which the stacks are fed to a delivery conveyer.
Patent GB-1434143-A (GB)
Title: Guidance of submerged loads
IPC: E21B41/10
Filed: 1974-01-11
Abstract: 1434143 Buoys SUBSEA EQUIPMENT ASSOCIATES Ltd 11 Jan 1974 [3 Sept 1973] 1429/74 Heading B7A [Also in Division B8] When a guide cable 3 is released from a boat (1), Fig. 1 (not shown), a float 76 indicates the position of the cable in the water, the cable 3 normally being wound on a winch 8 on board the boat and passing through a frusto-conical guiding apparatus 73 and a clamping device 79, 80 attached to the float 76. When the cable 3 is unwound an attachment 81 on the cable abuts with the apparatus 73 thereby releasing it from locking means 74 mounted on the boat and then the assembly of the apparatus 73, cable 3 and float 76 falls into the water, and the lower portion of the apparatus 73 abuts against the part 80 of the clamping device 79, 80 causing jamming of the cable 3 in the clamping device, since the part 80 is connected to the part 79 by connecting rods 78.
Patent GB-377565-A (GB)
Title: Improvements in composite plates for wall coverings, panels and the like
IPC: E04C2/12
Filed: 1932-01-18
Abstract: 377,565. Panels. JACOBSEN, S., 41, Markensgate, Kristiansand, Norway. Jan. 18, 1932, No. 1472. Convention date, Jan. 31, 1931. [Class 20 (iv).] Plates for wall coverings and panels consist of a middle layer 1 faced on each side with veneer or the like, and provided with longitudinal grooves 5 cut on both sides and opposite each other to form thick portions connected by thinner portions 6, the latter lying within the layer 1. In a modification, the grooves 5 are of equal depth so that the connecting portions 6 lie in the central zone.
Patent GB-1450362-A (GB)
Title: Free-flowing unsaturated polyester moulding compositions hardenable with very littleshrinkage
IPC: C08L21/00
Filed: 1975-01-14
Abstract: The mechanical properties of moulding compositions based on an unsaturated crystalline polyester and vinyl monomers which can be polymerised on are improved by the presence of a graft-polymerised elastomer. These moulding compositions are suitable for the production of mouldings which can be cured with low shrinkage.
Patent GB-842075-A (GB)
Title: Improvements in or relating to corona discharge electrodes for electrostatic precipitators
IPC: B03C3/41
Filed: 1959-01-15
Abstract: 842,075. Electrostatic precipitation. METALLGESELLSCHAFT A. G. Jan. 15, 1959 [Feb. 27, 1958], No. 1571/59. Class 39(1). A corona producing discharge electrode is made of two pieces of wire. The main piece is the long strand D which has the other piece wound round it in a half hitch so that one end forms the discharge point S1 and the other end is wrapped round the main wire in the region of a clip E which holds it in place. Alternatively, the other end of the wire may be wound round again to form a further discharge tip S 2 . The main discharge electrode wire inferably has an angular crosssection. Specification 418,403 and U.S.A. Specification 2,352,651 are referred to.
Patent GB-1419501-A (GB)
Title: Olefin polymerisation
IPC: C08F4/619
Filed: 1973-01-11
Abstract: 1419501 Olefin polymerization catalysts INTERNATIONAL SYNTHETIC RUBBER CO Ltd 2 March 1973 [3 March 1973 11 Jan 1973] 10188/72 and 1601/73 Heading C3P Alpha-monoolefins are polymerized in a hydrocarbon diluent in the presence of a catalyst comprising (1) an intimate mixture of (a) a trivalent halide of titanium, zirconium or hafnium, and (b) a compound of a Group V(a) or VI(a) transition metal, in which the mole ratio of (a) to (b) is between 10 : 1 and 100 : 1 and (2) an aluminium trihydrocarbyl or a hydrocarbylaluminium halide. The dispersion (1) is obtained by mixing the specified ingredients, followed by subjecting the mixture to shear, e.g. milling in the presence of a diluent. The polymers may be recovered by injection into hot water to form crumbs. A thiodipropionate or a metal soap may be added before final recovery of the polymer. In examples, polypropylene or ethylene-propylene copolymer is obtained by polymerization in the presence of a component (1) obtained by ball-milling in a hydrocarbon diluent a mixture of TiCl 3  and VOCl 3  and, as component (2), AlEt 3  and Et 2 AlCl. In some cases hydrogen, ethyltrichloroacetate or butylperchlorocrotonate modifiers are also included.
Patent GB-283865-A (GB)
Title: Vapourising device for petroleum or oil burners
IPC: F23D11/44
Filed: 1928-01-17
Abstract: 283,865. Weltner, J. Jan. 17, 1927, [Convention date]. Vaporizing - apparatus.- The vaporizer of a vapour burner comprises two annular chambers 11, 12 connected by a tubular neck 13 and provided with transverse walls 15, 16 which cause the fuel entering at 14 to pass completely round each chamber before entering the pipe 9 leading to the nipple 5. The nipple 5 is fitted with a needle valve 4 and discharges into a casing 1 which surrounds the vaporizer and is provided with a diffusing nozzle 2.
Patent GB-1452733-A (GB)
Title: System for regulating the power supplied to a threephase load
IPC: G05F1/455
Filed: 1975-01-14
Abstract: 1452733 Automatic control of electrical power and x-ray dose rate SIEMENS AG 14 Jan 1975 [15 Jan 1974] 1614/75 Heading G3R The power supplied to a load such as an x-ray tube over three-phase supply lines is regulated using A.C. switches in two of the lines. The switches are phase-controlled in accordance with an actual power signal, a desired power signal and a phase reference signal. The latter signal is derived in the case of one of the switches from its own phase line, while for the other switch the phase reference is taken from the uncontrolled phase line. As shown in Fig. 6, an x-ray diagnostic installation comprises a tube 6 connected to threephase lines R, S, T over anti-parallel thyristor switches 1, 2, a star-connected transformer 8 and a rectifier 7. The actual x-ray dose rate is measured and compared with a required dose rate to form a PI power regulating signal α. This signal is fed to one input of each of two control circuits 3, 4 which determine the firing angles of the thyristor switches 1, 2. The circuit 3 receives a phase reference signal R from the phase line in which the switch 1 is connected, while the circuit 4 receives a reference signal from the uncontrolled line T rather than from the line S in which the switch 2 is connected. This arrangement ensures that the dose rate increases continuously over the full range of firing angles, thereby preventing hunting, and also produces a constant peak voltage at the x-ray tube for any given firing angle.
Patent GB-268902-A (GB)
Title: Improvements in or relating to table-mats
IPC: A47G23/03
Filed: 1926-01-20
Abstract: 268,902. Holmes, W. F., and Holmes & Co., Ltd., W. F. Jan. 20, 1926. Mats.-Table mats are constructed of outer surfaces of waterproof material having a fabric base, such as imitation linen, which surround a heat-insulating layer, the lower outer surface being smooth and secured to the upper by a known cement consisting of a solution of a cellulose ester. An inner disc 10 of stiffening material, such as leatherboard, has applied to each side sheets 12, 13 of heat-insulating paper, the sheets 13 being of felt paper such as thick brown paper. The uppermost sheets 13 are covered with a second disc 11 of leatherboard over which is placed a sheet 14 of patterned waterproof material, such as waterproof imitation linen, larger in diameter than the heatinsulating discs and adapted to be folded over the edge thereof at 15. Over the remaining surface, which in use is the lower surface, is placed a disc 16 of smooth waterproof material. To secure the two sheets together, the abutting faces are covered with the cement to which reference has been made. Specification 253,323 is referred to.
Patent GB-851411-A (GB)
Title: Improvements in or relating to tractor cabins
IPC: B60R21/13
Filed: 1957-01-16
Abstract: 851,411. Tractor cabins. NORDPATENT A. B. Jan. 16, 1957 [Jan. 18, 1956], No. 1663/57. Class 108(1). A tractor cabin has two side frames 10 of channel members held in spaced relationship by transverse members and the front and rear of the cabin are sloped upwardly and rearwardly to protect the driver should the tractor rear or overturn. A windscreen 23 pivoted at 22 is held in one of a number of open positions by an adjustable stay 28. A sliding door may be provided on one or both sides of the cabin. Provision is also made for a passenger's seat having a' seat back 60 suspended from brackets 66 projecting from the frame and a seat 61 hinged to the back 60 and located at its forward edge by brackets 68. The seat may be stowed when not in use or it may be extended to form a protection for the rear of the cabin.
Patent GB-750711-A (GB)
Title: Improvements relating to spring clips for the mounting of rotatable shafts
IPC: F16B9/02
Filed: 1954-01-20
Abstract: 750,711. Circlips. GENERAL MOTORS CORPORATION. Jan. 20, 1954 [Feb. 3, 1953], No. 1705/54. Class 89 (2). A spring clip, e.g. for positioning a shaft 26 in an odometer, comprises a flat piece of resilient metal bent to form members 38, 40 substantially at right angles, member 40 having a slot 42 extending from its end and terminating in a substantially circular opening adjacent the bend line to form legs 46, 48 adapted to embrace a groove in the shaft, whereby separation of the legs in their own plane, causes member 38 to bend about the line of the slot. The tension with which the legs engage the groove may be increased by bending the member 38 about said line. The legs are slightly bent about a line 12a so that in use, end play in the shaft is taken up. The slot is notched for the shaft groove and the ends 58, 60 are bevelled.
Patent GB-924880-A (GB)
Title: Photographic roll-film camera
IPC: G03B19/04
Filed: 1960-01-18
Abstract: 924,880. Cameras. AGFA A.G. Jan. 18, 1960 [Jan. 31, 1959], No. 1792/60. Class 98 (1). A roll-film camera has a detachable cover 2 extending over the base and back of the camera in light-proof engagement given by labyrinth light traps 3, situated one behind and one in front of the film channel 4-4, the boundaries of the light traps nearest the optical axis being separated by a perpendicular distance which is less than the height of the film channel by at least the depth of one light trap. This allows a reduction in overall camera height.
Patent GB-826644-A (GB)
Title: Pneumatically operated fastener driving machine
IPC: B25C1/04
Filed: 1956-01-19
Abstract: 826,644. Percussive tools. MODERNAIR CORPORATION. Jan. 19, 1956 [Nov. 14, 1955], No. 1885/56. Class 124. A pneumatic unit for driving fastners comprises a handle and head portion forming a container for a gas under pressure, a piston carrying a driving blade reciprocating in a driving cylinder open at one end to a container, a control piston of greater diameter than the driving piston reciprocating in a control cylinder in the head portion to open and close the open end of the driving cylinder, the two pistons moving in opposite directions and the driving piston being operated in response to a momentary reduction in pressure on the side of the control piston opposite to the driving piston, and means to return the driving piston after a working stroke. As shown, a handle 15 and a head portion 19 form a reservoir for compressed air, which, on the opening of the control piston 47, enters the driving cylinder 49 and moves the driving piston 51 and blade 34 downwardly, the latter engaging a nail 32 from a magazine. Air pressure acts continuously on the upper side of the piston 47 through passages 64, 65 and space 45, and, on opening a manually operated valve 42, the space 45 is connected to atmosphere and the air pressure in the container acting on the annular underside of the piston 47 moves it upwards allowing pressure air to act on the piston 51. The piston 51 may be returned by a spring 52, the air trapped in the cylinder by the piston 47 reseating on the open end of the driving cylinder, escaping through passages 83, 84, 85, 87. The driving piston may also be returned by air pressure, Figs. 6 and 10 (not shown). Specification 826,646 is referred to.
Patent GB-584721-A (GB)
Title: Fastener for cables or the like
IPC: F16L3/233
Filed: 1945-01-24
Abstract: 584,721. Band clips. THACKER, R. S. Jan. 24, 1945, No. 1935. [Class 44] [Also in Group XXXVI] Electric wires, rods, or other articles are attached to a wall or other support by a flexible strap having its ends folded inwards, means being provided for drawing the ends together around the articles and for attaching the strap, between its ends, to the support. The strap A is of leather or fabric webbing comprising a body part 12 with ends 13, 15 folded at 14, 16 and united by adhesive or stitching. The attachment B consists of rivets 40 passed through eyelets 31 and covered by the free part 50 of the end 15. The securing means C consists of a tie-string 46 wrapped around hooks 45 secured to the body part 12, and covered by the ends 13, 15.