baber/WOPTO huggingface dataset:
Patent GB-204436-A (GB)
Title: Apparatus for plating sheet metals or alloys
IPC: C23C2/00
Filed: 1922-07-10
Abstract: 204,436. Camelo, N. July 10, 1922. Cleaning; coating.-Metal or alloy sheets are sprayed with acid flux and coated with metal or alloy in a machine having means actuated by the sheets to cause application of the flux and metal &c. Scraping and trimming discs are provided at the delivery end of the machine. The sheets are treated during passage over platform sections 20 and rollers 21 arranged at an incline from front to rear of the machine. Acid spray mechanism, Figs. 6 and 7, comprises a transverse pipe 27, connected at one end to a supply tank from which acid is delivered by means of an air pump, and having spaced openings 31, the flow of acid through which is controlled by apertured sleeves 32. By means of links 37, lever arms 36 mounted on a shaft 35, and a lever arm 38, the sleeves are rotated so as to uncover the openings by movement of a lever arm 41 against the action of a spring 39. This movement is effected by the forward edge of a sheet after passing 'between rollers 14. 16 and 15, 17, and the spray is cut off by return of the arm 41 when the sheet has passed under the acid pipe. When sheets of a less width are to be coated, some of the sleeves may be disconnected from the operating means. The sheet is wiped by brushes carried by rotating discs 52 supported in a rectangular frame 46, 47 and is then fed to the coating mechanism by discs 23 over a roller 21. A molten metal reservoir 53, which may be heated by burners 71, has spaced openings 63, Fig. 9, normally closed by members 56, having apertured devices 59, but adapted to be uncovered upon actuation of a lever arm 67 by the forward edge of a sheet, and kept open until after passage of the sheet, when the arm 67 is returned to its normal position by a spring 68. After being wiped by brushes carried on rotating discs 82, the sheet is trimmed by passing between a pair of shafts carrying cutting discs 86 at their ends, and is then ejected by the last set of discs 23 and rollers 21. The various shafts are preferably rotated from one source of power by sprocket and chain mechanism.
Patent GB-1005261-A (GB)
Title: Improvements in or relating to electrical protective equipment
Inventor: BAKER CHARLES THOMAS
IPC: H02H9/04
Filed: 1962-05-16
Abstract: 1,005,261. Transistor switching circuits. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. May 8, 1963 [May 16, 1962], No. 18898/62. Heading H3T. [Also in Division H2] In an arrangement for protecting electronic equipment employing semi-conductors against excessive supply voltages a Zener diode is connected in series with a resistor between the supply line and earth, the voltage across the resistor triggering a bi-stable switching device to apply a low impedance connection between the line and earth upon the supply voltage rising above a predetermined value and thereby to blow a fuse F1. In a first embodiment the switching device is a silicon controlled rectifier CR; the protective circuit is connected to the line by a diode D and may be connected also to several other lines by similar means. In a second embodiment the switching device takes the form of a bi-stable circuit employing transistors T1, T2 and controlling a third transistor T3 connected between the supply line and earth.
Patent GB-1457599-A (GB)
Title: Ball and socket joints
IPC: F16J15/34
Filed: 1974-04-30
Abstract: 1457599 Ball and socket joints CATERPILLAR TRACTOR CO 30 April 1974 [30 April 1973] 18900/74 Heading E2F [Also in Division F2]  In a ball and socket joint 10, a rotatable socket 54 is pivotable about an axis transverse to the longitudinal axis of a shaft 12 by having seals 60, 62 disposed between the socket and annular retainer surfaces 34, 40, the surfaces being fixed relative to the shaft. Each seal comprises a resilient member, e.g. 64, which is bonded on one side to a retainer surface, e.g. 34, and on the other side to an annular seal carrier e.g. 66, and a resilient member, e.g. 70, carried by the carrier so as to be in continuous, annular, sliding contact with the socket 54. Other embodiments are described in which the shape of the retainer surfaces and the mounting of the shaft within the retainer surfaces are changed.
Patent GB-115779-A (GB)
Title: Improvements in or relating to Magnetic Blow-out Fuses.
IPC: H01H85/38
Filed: 1917-12-21
Abstract: 115,779. Switchgear & Cowans, and Neep, G. H. Dec. 21, 1917. Fusible cut-outs.- In cartridge fuses having magnetic blow-outs, the fusecarrier is removably mounted on a pivot on a supporting- bracket. The magnetic blow-out fuse b, which may be of the kind described in Specification 104,257, has side plates f with recesses f<1> engaging the pivot cross-pin c<4> on the fixed brackets e. A cross-pin f<2> on the plates engages lips e<5> on the brackets when the fuse is swung about its pivot so that the fuse may rest in its disengaged position without complete removal from the brackets. The fixed contacts are in the form of spring blades c<1>, Fig. 3, with which engage rigid jaws d<1> on the fuse-carrier. The pivot cross-pin may be carried bv the fuse member b.
Patent GB-694617-A (GB)
Title: A process for the purification and decoloration of liquids, especially sugar solutions
Inventor: LOURENS CORNELIS
IPC: C13B20/12
Filed: 1951-08-13
Abstract: Liquids especially sugar solutions are decolourized or otherwise purified by filtration through a column of granular bone black in which the bone black is mixed with a minor proportion of powdered vegetable active carbon.  The quantity of powdered active carbon, which may be that sold under the Registered Trade Mark "Norit," is from 2-6 per cent by weight of the bone black and is introduced by making an aqueous suspension and spreading this over the bone black, or by suspending the powdered carbon in a diluted or normal clarified solution of the substance whose solution is to be decolourized or otherwise purified.  To prevent the powdered carbon from being carried away with the liquid two or more filters may be connected one behind the other, or one-third of the carbon may be left without admixture.  The powdered carbon is rinsed from the bone black during regeneration.ALSO:Liquids especially sugar solutions are decolourised or otherwise purified by filtration through a column of granular bone black in which the bone black is mixed with a minor proportion of powdered vegetable active carbon.  The quantity of powdered active carbon, which may be that sold under the Registered Trade Mark "Norit," is from 2-6 per cent by weight of the bone black and is introduced by making an aqueous suspension and spreading this over the bone black, or by suspending the powdered carbon in a diluted or normal clarified solution of the substance whose solution is to be decolourised or otherwise purified.  To prevent the powdered carbon from being carried away with the liquid two or more filters may be connected one behind the other, or one third of the column may be left without admixture.  The powdered carbon is rinsed from the bone black during regeneration.
Patent GB-144509-A (GB)
Title: Improvements in means for starting internal combustion engines adapted also to be used for generating electric current
IPC: F02N15/04
Filed: 1919-08-01
Abstract: 144,509. Jeal, W. S. Aug. 1, 1919. Turning-gear.-In an electric starter in which a motor drives the engine shaft at low speed and is afterwards driven as a dynamo at engine speed, a one-direction clutch is interposed between a pinion c mounted on the armature shaft a and gearing carried by the engine shaft b and permanently in mesh with the pinion. In the form shown, the planet pinions d on a carrier f mesh with the pinion c and with an internally toothed ring h, which is carried by rotatable rings i, j, the ring j being connected by a free-wheel device o to the motor casing m. The planet carrier has a boss g keyed to the engine shaft b, and a freewheel device n is interposed between the boss g and the pinion c. The drive from the armature shaft a is transmitted at low speed through the gearing c, d and planet carrier f to the engine shaft, the ring h being held against rotation by the free-wheel connexion o. When the engine starts, its rotation is transmitted directly through the free-wheel clutch n and carrier f to the shaft b at engine speed, the ring h turning freely. In a modification, the free-wheel clutch n is replaced by a friction clutch, the planet carrier f being mounted on a screw-thread on the shaft b in order to put the friction clutch into engagement when the engine runs. The Provisional Specification describes a form of the invention in which bevel gearing is employed.
Patent GB-576774-A (GB)
Title: Improvements in and relating to blasting cartridges
IPC: F42B3/02
Filed: 1943-11-17
Abstract: 576,774. Blasting cartridges and charges. HERCULES POWDER CO. Nov. 17, 1943, No. 19213. Convention date, June 30. [Class 9 (i)] [Also in Group XXV] Two or more blasting cartridges 1 are assembled in end-to-end propagating relationship by an internally threaded sleeve, or sleeves, 2 with the threads 3 of which lugs 5 on the cartridge wrappings are engaged. Alternatively, the threads may be formed on the wrappings and' the lugs in the sleeves. In other forms, the threads may be provided at the ends only of the sleeve or cartridge elements. The sleeves, which may be of paper, cardboard, metal or plastic, may be made by feeding a thread-forming strip on to a mandrel at the correct pitch and then winding over the thread a strip of material to form the outer wall 6 of the sleeve, adhesive being applied to the inner surface of the strip. The lugs 5 may be adhered to the cartridge wrapping by winding a strip carrying them at suitable spacings on to the wrapping, and applying pressure.
Patent GB-516494-A (GB)
Title: Improvements in adjustable stands for drawing boards and the like
IPC: A47B27/14
Filed: 1938-06-30
Abstract: 516,494. Tables. MORSE, S. H. June 30, 1938, No. 19369. [Class 52 (iii)] In an adjustable stand for drawing boards and the like of the kind comprising an upper frame formed of a pair of vertical members adjustable vertically in a lower base frame and bearing pivotally supporting means to hold the drawing board, the base member comprises at each end inclined lug members a connected together in spaced relation by a plate b so as to leave a slot to accommodate the vertical members d. The members d are connected together by cross pieces e, f so formed at their ends that they may be drawn against the members d by screws j, j<1> the lower cross members f being fixed also in relation to the leg members a. The top of each member d is provided with a bracket s to which is pivoted a quadrant q having supports t for holding the drawing board. Cleats p serve to clamp the pivoted quadrant in adjusted position. Screws q are provided for vertical adjustment.
Patent GB-478245-A (GB)
Title: Improvements in or relating to fountain pens
IPC: B43K5/08
Filed: 1936-07-13
Abstract: 478,245. Clips. ZAHEL, J. July 13, 1936, No. 19433. Convention date, July 12, 1935. [Class 44] [Also in Group XV] A pocket clip 5 is secured to the cap 4 of a fountain pen by means of a ring on the clip engaged by an inner section 1 of the cap or by a nut 2 which serves to retain both the clip and inner section in place.
Patent GB-363998-A (GB)
Title: Improvements in or relating to recording combined tone complexes, in particular for the purpose of sound films
IPC: G11B7/28
Filed: 1930-06-26
Abstract: 363,998. Copying sound records. KLANGFILM GES., 4, Askanischer Platz, Berlin. June 26, 1930, No. 19519. Convention date, June 26, 1929. [Class 40 (ii).] Sound records on films, plates, discs, or other carriers are transferred simultaneously by photographic recording apparatus on to a single blank so that the latter has the records lying adjacent to each other. As shown, sound records on films T<1>, T<2> are printed side by side on a film T, the light rays from sources L<1>, L<2> passing through the films T<1>, T2 respectively and through a light slit S and optical system O. The width of each record may be varied and the intensity of the records may be varied by varying the strengths of the sources L<1>, L<2>, or by introducing screens into the light paths. The sound records on the film T or the sound records being combined may be simultaneously listened to. In the latter case the films T<1> T2 have testing devices A<1>, A2, acting upon an amplifier V and listening device L. In Fig. 2, three records are shown side by side on a single film.
Patent GB-586367-A (GB)
Title: Improvements in or relating to the flame-proofing of textile materials
IPC: D06M13/432
Filed: 1944-10-11
Abstract: 586,367. Fireproofing textiles, BRITISH CELANESE, Ltd. Oct. 11, 1944, No. 19613. Convention date, Oct. 13, 1943. [Class 140] Textile materials comprising fibres having a basis of an organic derivative of cellulose are flame-proofed by the incorporation of thiourea. The materials may be yarns, fabrics or staple fibre of cellulose esters such as the acetate, propionate or butyrate; mixed cellulose esters such as acetate-propionate or acetate-butyrate; or cellulose ethers such as benzyl cellulose. The thiourea may be applied to the textile material in water or aqueous alcoholic solution by methods such as padding or immersion and solvent is removed as by heated air, or, in the case of fabrics by a hot tower or tenter frame. The solution may contain an inorganic ammonium salt such as the chloride, bromide, borate or diammonium phosphate, and when used for treatment of fabric the solution may also contain a di-ammonium alkyl phosphate, such as the methyl, ethyl, amyl or octyl derivative for the purpose of imparting an excellent hand to the fabric.
Patent GB-849227-A (GB)
Title: Electrolytic smelting
IPC: C25C3/06
Filed: 1957-06-21
Abstract: 849,227. Production of metals by fused salt bath electrolyses. DILLER, 1. M. June 21, 1957, No. 19703/57. Drawings to Specification. Class 41 In the electrolytic smelting of a metal in a fused salt bath by applying low voltage D.C. between electrodes in the bath, the ionization and the mobility of the ions are increased by superimposing upon the low voltage brief high voltage pulses of the same polarity. The high voltage pulses may be provided either by means of a relaxation oscillator comprising a condenser charged from a rectified A.C. source and a discharge tube connected across the bath electrodes or by means of a time-actuated magnetic blowout switch interrupting a D.C. supply. A high inductance is included in the low voltage D.C. line and the impedances of the high voltage source, feeders and cell are adjusted to prevent alternation of the high voltage by reflectance. Typically for producing aluminium by the Hall process steady D.C. at about 4 volts and pulses of 1000 volts of 5 Á secs. duration at half-second intervals are employed.
Patent GB-956914-A (GB)
Title: Improvements in the production of n,o-dimethylhydroxylamine
Filed: 1962-05-22
Abstract: N,O-Dimethylhydroxylamine is isolated from a mixture of O-methylhydroxylamine and N,O-dimethylhydroxylamine by adding formaldehyde to the mixture and removing the O-methylformaldoxime formed, preferably as a gas by heating. Where the starting mixture is an aqueous solution of the two compounds heating at a pH of below 7 removes the O-methylformaldoxime leaving a solution from which, after the pH is raised above 7, the O,N-dimethylhydroxylamine may be distilled off. Specification 852,422 is referred to.
Patent GB-1165113-A (GB)
Title: Smelting and Refinery Nickel-Containing Materials
Inventor: O'NEILL CHARLES EDWARD
IPC: C22B5/08
Filed: 1968-04-25
Abstract: 1,165,113. Smelting sulphide materials. INTERNATIONAL NICKEL CO. OF CANADA Ltd. April 25, 1968 [April 26, 1967], No.19728/68. Heading C7D. A process for producing Ni or Ni-Cu by smelting and refining a molten sulphidic Ni or Ni-Cu bath comprises agitating the bath (e. g. by pneumatic, mechanical or electromagnetic stirring) while blowing a free oxygen containing gas stream (e. g. commercial oxygen) at or over its surface until the S content of the bath is below 4%, incorporating in the bath, at least partially from the gas stream, oxygen in stoichiometric excess of the amount required to form SO 2  with all the remaining S and vacuum treating the bath at below 0À1 atmospheres pressure while it is kept at a high enough temperature that all the S is removed by oxidation. Some of the excess oxygen may be incorporated in the bath by the addition of finely divided NiO or by passing thereinto an oxygen containing gas during the vacuum treatment, and the melt is preferably agitated during the vacuum stage. The excess in weight percent O 2 -S is preferably OÀ1-1. The solid sulphidic material is preferably added to the molten bath after a portion has been removed for vacuum treatment. During or after the vacuum treatment the melt is preferably deoxidized with C, Si, Al, Ca-Si, or with gases containing H 2 , CO or CH 4 .
Patent GB-1353076-A (GB)
Title: Polymeric mouldings with antistatic layers
IPC: C08J7/044
Filed: 1971-06-09
Abstract: 1353076 Antistatic compositions FUJI PHOTO FILM CO Ltd 9 June 1971 [9 June 1970] 19764/71 Headings C3F and C3P [Also in Division B2] A composition for reducing the electrostatic charge generating property of polymeric mouldings comprises a binder, which may be a cellulosic resin, vinyl chloride-vinyl acetate copolymer or a polycarbonate, and from 0À1-3% by weight of the binder of an antistatic agent. The latter may be of general formula where R is C 8-22  hydrocarbyl, A is -O- or -NH-, M is an organic amine or a metal and n, X and Y are each a positive integer, or may be "Catanac SN" of formula  or "Zelex OM". In Examples 1 and 3, the binder is a solution of cellulose triacetate in methylene chloride/methanol and the antistatic agent is respectively the compound of the above formula where R is C 17 H 35 , A is -O-, M is Ca, X is 2 and n and Y are 1, or is "Zelex OM". In Example 2, the binder comprises a solution in a mixed solvent of phenol/tetrachloroethane/ ethylene chloride/methanol of vinyl chloridevinyl acetate copolymer and "Catanac SN" (see above).
Patent GB-949531-A (GB)
Title: A bistable circuit
IPC: H03K3/288
Filed: 1962-05-23
Abstract: 949,531. Transistor bi-stable circuits. NATIONAL CASH REGISTER CO. May 23, 1962 [July 14, 1961], No. 19785/62. Heading H3T. In a bi-stable trigger circuit S1 provided with an input for setting it to one or other of its two states, the input signals are gated by clock pulses, and are delayed by a delay network I24 or I26. Input pulses sS1 are applied to the base of transistor 50 to switch either transistor 50 or 52 into its conductive state, depending on whether the input represents a logical " 0 " or " 1." Assuming transistor 50 is conducting, then current flows through inductor 24 and diode 47 to line 21 which is normally held at a negative potential. Application of a positive clock pulse C L (b) to line 21 cuts off diode 47 and the energy stored in inductor 24 causes a switching current to flow over line 25 to the base of transistor 14, which forms one half of the bi-stable circuit. The rate of build-up of the switching current is determined by the time constant of the inductive circuit, so that switching may be delayed until the end of the clock pulse. If the input is such as to cause transistor 52 to conduct, energy stored in inductor 26 causes a similar switching current to be fed over line 27 to the base of transistor 16 when the clock pulse cuts off diode 49. A number of similar bistable circuits may be driven from a common gate-pulse generator without spurious retriggering, Figs. 2, 5 (not shown). Specification 949,532 is referred to.
Patent GB-147784-A (GB)
Title: Improvements in the construction and operation of dynamo electric machines
IPC: H02P9/22
Filed: 1920-07-09
Abstract: 147,784. Apple, V. G. April 23, 1917, [Convention date]. Drawings to Specification. Regulation, automatic systems and apparatus for.-An automatic regulator forming a removable attachment to a dynamo consists essentially of an electro-magnetic coil and a vibrating contact-carrying armature mounted within an iron cylinder which is included in the magnetic circuit of the coil. The detailed construction of the vibratory contactor is described in Specification 147.783. The screw-threaded outside of the cylinder screws into a correspondingly threaded hole in the coverplate of the dynamo and is so positioned that the vibratory contact is normally in rubbing engagement with a brush contact carried by the dynamo axle. The regulator is connected in circuit with a compound wound generator, a storage battery, and lamps, and acts to put a resistance into and out of circuit with the dynamo shunt-field. Details of the disposition and adjustments of the regulator are given in the Specification, which also describes a foot-operated switch for making the necessary starting and running connexions. For starting, the contact is depressed to the full extent. When the foot is taken off, the contact moves back under spring pressure to an intermediate running position where it is retained set bv a latch, which is kicked out when it is desired to return to the off position.
Patent GB-1499024-A (GB)
Title: Process for making printing masters
IPC: G03G13/28
Filed: 1975-05-12
Abstract: 1499024 Printing masters XEROX CORP 12 May 1975 [30 May 1974] 19858/75 Heading B6C A lithographic printing plate, which can be used without damping, is made by providing a layer comprising two kinds of silicone, the two kinds being curable at different temperatures, curing one of the silicones, imaging, and thereafter curing the other. The imaging may be by typing but is preferably electrophotographic, either by transferring a developed image thereto, or by making the plate itself photoconductive, e.g. by incorporating photoconductive material into the layer or as a layer beneath the layer. The image may be embedded into the silicone by rolling with a roller prior to the final cure, and the image material removed, e.g. by solvent, after curing to provide ink-accepting depressions in the silicone surface.
Patent GB-1436808-A (GB)
Title: Vibratory mill structures and method of forming same
IPC: B24B31/00
Filed: 1974-05-06
Abstract: 1436808 Vibratory finishing SWECO Inc 6 May 1974 [4 May 1973] 19866/74 Heading B3D [Also in Division B5] A vibratory mill comprises a housing 10 in which is a rigid foamed plastics base 46 having a rigid plastics liner 48. The housing consists of a cylindrical wall 14 which has a flange 12 and is welded to a circular base plate 16 secured to a central tube 32 in which is mounted a motor 39 having eccentric weights 40, 42. The housing is supported by springs 28 on a base 20. The rigid foamed plastics base 46 is cast in the housing, and a wear-resistant lining 48 is cast on the base and defines a helical chamber 50 in which articles may be deburred, ground or finished by the vibration imparted by the motor and weights. The helical chamber has a discontinuity 58 forming a ledge which may be provided with a dam or screen for separating parts and media. The rigid foamed plastics base reduces the transmission of noise. A method of constructing the rigid foamed plastics base 46 and rigid plastics liner 48 includes the production of casting tools. A block of rigid foamed plastics material or other easily carved substance is cast into a cylinder 62, Fig. 3c, and carved to have a cavity 66 of the desired shape of the finishing mill chamber. A coating 68 of fibreglass and resin is splash coated on to the block, allowed to harden and then removed to form a first casting tool. Further sculpture to increase the cavity in the block by the desired thickness of the liner 48 is effected and a coating of fibreglass and resin splash coated on to the block, allowed to harden and then removed to form a second casting tool. The second and first casting tools are then used to form moulds in the housing 10 for casting first the rigid foamed plastics base 46 and then the rigid plastics liner 48. If the cylinder 62 comprises the housing 10, the forming of the second casting tool is not necessary.