baber/WOPTO huggingface dataset:
Patent GB-880045-A (GB)
Title: Improvements in or relating to arc welding
IPC: B23K9/10
Filed: 1959-08-12
Abstract: 880,045. Arc welding systems. WESTING- HOUSE ELECTRIC CORPORATION. Aug. 12, 1959 [Aug. 27, 1958], No. 27538/59. Class 38 (4). [Also in Groups XXII and XXXVII] To prevent crater formation at the termination of a weld on an automatic welding machine, as the end of the weld approaches the electrode advancing speed is reduced thus reducing the arc current subsequent to which the arc voltage is also reduced. In the embodiment described, the voltage from main transformers T1-T3 feeding the arc through rectifiers RX is supplemented by the voltage from booster transformers BT1-BT3 during the main run of the arc, but when the weld is being terminated, series resistors 1R-3R are unshunted to reduce the booster voltage. Specifications 831,580 and 876,864 are referred to.
Patent GB-616634-A (GB)
Title: Improvements in and relating to control units for discharge lamps
IPC: H05B41/12
Filed: 1946-09-13
Abstract: 616,634. Control systems for space discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 13, 1946, No. 27589. Convention date, Sept. 17, 1945. [Class 38 (iv)] [Also in Group XXXVII] Rapid starting of a discharge lamp 1 is effected through a glow switch 7, having a bimetallic strip 11 normally out of engagement with contact member 10, series connected to the coil 20 of an electromagnetic switch 8 (see Group XXXVII) through its normally closed contacts 15 which are arranged to open circuit at or near the peak value of each half wave of the applied A.C. The contacts of switch 8 repeatedly open to provide a series of high voltage kicks between the electrodes 2. A condenser 9 may be shunted across the electrodes to limit the value and extend the period of the striking voltage applied. A glow or thermal type lock-out switch 22 (see Group XXXVII) with normally closed contacts 23, 24 may be series connected in the starting circuit to open it should the lamp fail to ignite after a predetermined period. Specifications 542,853 and 558,205 are referred to.
Patent GB-1509263-A (GB)
Title: Rotary internal combustion engine
IPC: F01C11/00
Filed: 1975-07-01
Abstract: 1509263 Rotary positive-displacement fluid-machines B O STOOKEY 1 July 1975 27677/75 Heading F1F In an I.C. engine fuel-and-air mixture is compressed by a sliding-vane rotor (15), Fig. 5 (not shown), in a housing comprising a cylinder 13 and subsequently ignited by a spark-plug 27 after being transferred to combustion chambers 25A, B, C in a rotor 25 within a housing including a cylinder 23, the combustion products driving another sliding- vane rotor 35, which is enclosed by a housing comprising a cylinder 33. The combustion chambers communicate with the intervane spaces of the other rotors 15, 35 through ports 19A, B and 29A, B in end-plates 12, 21 and 22, 32. An auxiliary exhaust-port 29D facilitates scavenging of the combustion chambers, the main exhaust-port 40A communicating with the intervane spaces of the rotor 35. The output shaft 10 inter-connects the rotors. Alternatively, air per se is compressed by the rotor (15) and fuel is injected into the compressed air flowing between the ports 19A, B through a "sleeve" 19.
Patent GB-426651-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/52
Filed: 1933-10-07
Abstract: 426,651. Safety razors. KIRMES, E., 5, Kantstrasse, Charlottenburg, Berlin. Oct. 7, 1933, Nos. 27693 and 27694. Convention dates, Oct. 8, 1932 and Dec. 21, 1932. [Class 30] The one or two blades is or are longitudinally flexed and is or are usable in either convex or concave manner by turning the razor-head about the spherically jointed handle 6, so that either side of the head is uppermost. The clamping-plates 1, 2, which are held together by a loose screw 3, may be cut from conical envelopes so as to flex the blade to different radii of curvature along each edge. In Fig. 10, two blades 4<a>, 4b lie on opposite sides of an intermediate guard-plate 15 toothed on both edges. In a single-bladed form, the blade is clamped directly between clamping-plates which are each toothed only on their opposite edges. Additional clamping-plates may be superposed on each toothed plate. In Figs. 7 and 8, the clamping-plates 1, 2 carry separate dovetailed guarding-edges 9 or 12 attachable to either side. The ball- and-socket jointed handle is set in the desired position by a screw-plunger 7. The blades are of the usual three-hole type. Reference has been directed by the Comptroller to British Specification 274,013, [Class 30], and U.S.A. Specification 1,821,825.
Patent GB-687414-A (GB)
Title: Improvements in the manufacture of one- and two-dimensional shaped articles from cellulose triesters
Inventor: JOHNSON EDGAR BERTIE
IPC: D01F2/28
Filed: 1949-10-28
Abstract: Artificial filaments, yarns, films and similar shaped articles are made by extruding a solution of a cellulose triester of a fatty acid containing at most 4 carbon atoms, e.g. cellulose triacetate or tripropionate, in a solvent mixture containing 50-75 per cent by volume of methylene chloride or ethylene chloride and 50-25 per cent by volume of a fatty acid containing at most 4 carbon atoms, e.g. acetic or propionic acid, into a coagulating bath of which the main or sole constituent is an aliphatic alcohol containing at most 4 carbon atoms, e.g. 90 per cent aqueous ethyl alcohol or aqueous denatured ethyl alcohol, e.g. methylated spirits.  The Provisional Specification states that the coagulating bath may comprise acetic acid, acetone, ethers and hydrocarbons.
Patent GB-677406-A (GB)
Title: Improvements relating to welding electrodes
IPC: B23K35/365
Filed: 1950-11-13
Abstract: A welding electrode has a Ni-Cu alloy core and a coating containing by weight 20 to 40 parts calcium carbonate; 5-35 parts calcium fluoride; 10-35 parts cryolite; 2-5 parts bentonite and a binder.  An example of the core and coating compositions follows:- ...Part .Core..Coating..by ...weight .C 0.1 per cent.Calcium carbonate.26 .Fe 0.7 per cent.calcium fluoride.16 .Mu 0.75 per cent.cryolite.25 .Si 0.25 per cent.vitania.25 .Ti 0.5 per cent.ferro-manganese. .Al 1.7 per cent.85 per cent Mu.5 .Cu 29.5 per cent.bentonite.3 .Ni balance.ferro-iridium 50. ..per cent Nb.16 ..sodium silicate.15 ..invert sugar.2.5 ..water.12
Patent GB-988161-A (GB)
Title: Improvements in or relating to rotary internal combustion engines
IPC: F02B75/02
Filed: 1962-07-19
Abstract: 988,161. Rotary I.C. engines. ROTOR SOC. MECCANICA ITALIANA S.p.A. July 19, 1962 [July 26, 1961], No. 27795/62. Heading F1F. A rotary internal combustion engine has outwardly sliding vanes mounted in the casing S (Fig. 3), these vanes being movable as the rotor R rotates by cammed surfaces outside the working chambers. For example, as shown in Fig. 4, the vanes P 2 , P 4  have rollers R 1 , R 2  rolling on cammed surfaces G 1 , G 2  in the end faces of the rotor, or, as shown in Fig. 1, the vanes P 1 , P 2 , P 3 , P 4 , are curved, and are each fixed to a bell crank which pivots about F, and has an adjustable plate 2 at its other end bearing on a cam E. Inlet and outlet passages are formed in the rotor (Fig. 2, not shown), and cooling water passages cc (Fig. 3) are provided in the casing. Sealing strips c, e are fitted in grooves in the vanes, h in grooves in the end faces of the rotor, and d in the casing bearing on the vanes. In the four stroke engine shown, the lobes of the rotor (Fig. 3) are of different sizes so that a more complete exhaust may be effected without an excessively high compression ratio.
Patent GB-188641-A (GB)
Title: Improvements in curtains or shutters for windows, shop fronts or other architectural bays
IPC: E06B9/36
Filed: 1922-10-13
Abstract: 188,641. David, F. Nov. 9, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Lath blinds; curtains, drawing and suspending. -A window blind or shutter comprises a number of vertically arranged slats a each rotatably suspended from a ring c slidably arranged upon a rod d secured to the window frame, the slats being connected at their upper ends by cords h, h<1> by which they may 'be rotated the usuall operating cord e, secured to the necessary rings c, being provided for drawing the slats to one side. One of the cords h, h<1> may support a fabric curtain. The ring c is formed of wire coiled around the rod d one end c<2> projecting into a longitudinal slot d<1> in the top of the rod d, the other end c<3>, upon which the slat is adapted to rotate, carrying a lead c<1> located in recesses in wooden plates b, b' which are secured, one on each side, on the top of the slat, similar plates being provided at the bottom. The inner rings have the end c<2> formed with an eye to receive the draw cord e. In a modification, for use with a channel rail f, the ring comprises a portion g carrying the head c' and provided with a roller g<1>.
Patent GB-954502-A (GB)
Title: A new fungicide and a process for the preparation thereof
IPC: C01F7/786
Filed: 1960-08-11
Abstract: A stable complex compound with fungicidal properties consists of 2,4,5-trichlorophenol and either tri-isobutylphosphate or normal tributyl phosphate associated together in substantially equimolecular proportions. The reactants may be mixed together or distilled under a vacuum of about 0.01 in Hg at a temperature of between 94 DEG C. and 103 DEG C. In the example, 40 to 50 parts by weight of 2,4,5-trichlorophenol are mixed with 50 to 60 parts by weight of tri-isobutyl phosphate and then dissolved in an aqueous alcoholic solvent. The complex is formulated into fungicidal compositions for treating human and animal mycoses.ALSO:A fungicidal composition for treating human and animal mycoses comprises a complex of 2,4,5-trichlorophenol and tri-isobutyl phosphate or normal tributyl phosphate (see Division C2) and a non-toxic liquid or solid diluent or carrier e.g. salve or powder. The active material comprises 0.01 to 0.5% by weight of the composition.
Patent GB-240029-A (GB)
Title: Improvement in a window
IPC: E06B3/34
Filed: 1924-11-21
Abstract: 240,029. Zeh, F. C. Nov. 21, 1924. Pinless and like hinges.-Sashes of the fan-light or casement type are provided with weatherproof hinges consisting of sheet metal sockets 21 hing- ing on round rods 7. The sockets are secured in a groove on the bottom of each sash with a packing piece 22 and screws. The rods are secured to battens 14 on the frame by strips 9 let into grooves in the rods and screws passing through the strips and battens into the frame. Side and top screws are provided with sashes.
Patent GB-444903-A (GB)
Title: Improvements in or relating to automatic train control systems
IPC: B61L3/12
Filed: 1934-09-29
Abstract: 444,903. Train-control systems. HUDD, A. E., Villa Blanche, Balcombe Road, Pound Hill, Crawley, Sussex. Sept. 29, 1934, No. 27924. [Class 105] [See also Groups XXIX and XXXIV] A train-control system comprises two spaced track magnets one of which can be rendered inoperative and a train-carried magnetic receiver the armature of which is connected to a valve in the brake pipe line by a transmission such that the valve is opened by a first magnetic action and is closed if a second magnetic action arises. The traincarried receiver comprises flux collecting plates 36 which are provided with polepieces 35 to attract an armature 37 carried by a diaphragm 34. The movement of this diaphragm, when a track magnet is passed, sets up a pressure which is transmitted through a conduit 18 and deflects a second diaphragm 15 acting on the stem 19 of the brake-pipe venting valve 10. The stem is carried in a bearing 22 on the diaphragm 15 and is provided with two collars 23, 24 having inclined teeth 25, 26 co-operating with inclined teeth on a fixed sleeve 20 through which the stem passes. When the diaphragm 15 is deflected the stem moves to the left and, when the teeth 45, 26 at the right-hand engage, the stem 19 is rotated through an angle so that on the return of the diaphragm the tooth 25 of the left-hand collar 23 engages a shallow tooth 46 on the sleeve 20 and thus the valve 10 is maintained open so applying the brakes and sounding a whistle 12. A second deflection of the diaphragm will slide and rotate the stem 19 in a similar manner thereby bringing the tooth 25 of the left-hand collar 23 into engagement with a deep tooth 47 on the sleeve 20 and so will allow the valve to close. The second deflection of the diaphragm is effected by a second track magnet if the signal is at clear but if the signal is at danger the driver can cancel the braking and the whistle signal by a push which butts on the valve 30 to admit atmospheric pressure to the diaphragm 15. The lower face of the diaphragm 34 becomes exposed to atmospheric pressure by the opening of a port 39 when the diaphragm moves upwardly.
Patent GB-636461-A (GB)
Title: Control for differential air pressure power system
IPC: B60T13/24
Filed: 1946-09-18
Abstract: 636,461. Manually-actuated valves. BENDIX AVIATION CORPORATION. Sept. 18, 1946, No. 27932. Convention date, Oct. 3, 1945. [Class 135] [Also in Group XXXIV] A control valve mechanism comprises a flexible diaphragm 62 defining an opening which, in the normal position of the diaphragm, connects an outlet port 46 to a port 30 connected to a motor, the pressure-responsive faces of the diaphragm being of substantially equal area and exposed to the pressures existing in the respective ports, and the opening is sealed by a valve 64 following a displacement of the diaphragm by the operator; and, on continued displacement of the diaphragm and its valve, a further valve 72 mechanically connected thereto is moved from its seat constituted by an annular valve 78 of substantially larger area so as to connect an inlet port 40 with the motor port 30. The invention is shown applied to a vacuumoperated brake system in which actuation of the brake pedal causes the master cylinder to transmit a hydraulic pressure direct to a. second cylinder connected hydraulically to the brakeapplying motors and also to a piston 20 forming part of the control device for supplying air to a vacuum-suspended cylinder which also acts on the second cylinder. One side of the vacuumsuspended cylinder, which may have tandem pistons, is in permanent communication with the intake manifold of the engine and the other, or control, side is connected to port 30. Normally, a valve 54 carried by the diaphragm is kept open by a spring 66 so that port 30 communicates with the intake manifold port 46. Diaphragm 62 is connected by a bridge member 60 to the rod 50 of piston 20 so that, when the piston is moved by depression of the brake pedal, valve 54 will first be closed on to its seat 64 and the whole assembly will then move until a rod 80 carried by the seat 64 will press valve 72 away from its seat 78. This will put an atmospheric port 40 in communication with the power cylinder control port 30 and will also partially balance the pressures on opposite sides of the main closure member 78. In the further movement of rod- 80, an abutment 96 carried thereby will open the main closure member 78 and permit the full application of the brakes. In a modification, valve closure member 72 is flat in shape and is flexibly connected to its operating shaft by a short length of cable.
Patent GB-1342518-A (GB)
Title: Preparation of polyamide imides
IPC: C08G73/14
Filed: 1971-06-15
Abstract: 1342518 Polyamide-imides CELLA LACKFABRIK DR C SCHLEUSSNER GmbH 15 June 1971 [24 June 1970] 27982/71 Heading C3R [Also in Division D2] A method for preparing polyamide-imides comprises mixing an aromatic diprimary diamine and an aromatic tricarboxylic anhydride in the presence of an organic liquid which is a solvent for both reactants at a first temperature of at least 160‹ C. and then condensing the reactants at a higher temperature. The diamine and anhydride may be dissolved in separate portions of the solvent which are heated before mixing or the anhydride may be added to a solution of the diamine heated to and maintained above 160‹ C. Specified anhydrides are those of trimellitic, hemimellitic and benzophenone-2,3,2<SP>1</SP>- tricarboxylic acids; specified diamines are m- and p-phenylene diamines and 4,41-diaminodiphenyl ether and methane. The only organic liquid specified is cresol. The method is stated to give polymers soluble in cresol, giving solutions of 30 to 50% concentration useful as electrical insulation lacquers, avoiding the formation of insoluble diimide dicarboxylic acids which occurs at lower temperatures. In Example 2, six coats of a lacquer of the polyamide-imide prepared from trimellitic anhydride and diamino-diphenyl-methane in cresol and diluted with a cresol/solvent naphtha mixture and applied to copper wire. Reference is made to Specifications 1,032,649, 1,056,564 and 1,063,038.
Patent GB-176824-A (GB)
Title: Improvements in and appertaining to loose pulleys
IPC: F16N7/00
Filed: 1920-10-04
Abstract: 176,824. Grundy, G. Oct. 4, 1920. Reservoirs in pulleys. - A central boss with spokes a or a web and inner and outer sleeves a<1>, a<2> is secured to the shaft b and carries a loose pulley h, which has a flange h<1> and a corresponding plate attachment m enclosing the boss. Oil is supplied to the central chamber by holes o, m<5>, escape being prevented by grooves n on the sleeve a<1> and conical surfaces h<3>, m<3> on the parts h<1>, m. Perforations e in the sleeves a<2> supply oil to the running surfaces.
Patent GB-910786-A (GB)
Title: Improvements in or relating to trip free electrical circuit-breakers
IPC: H01H73/30
Filed: 1959-08-17
Abstract: 910,786. Electrically-tripped switches. WOOD ELECTRIC CORPORATION. Aug. 17, 1959 [Jan. 13, 1959], No. 28055/59. Class 38 (5). A double-break, trip-free circuit-breaker comprises fixed contacts 18, 20 co-operating with movable contacts 68, 70 carried by a V-shaped resilient wire bar 66 secured by an enlarged head 78 to to a leaf spring 72 having one end hinged at 74 and the other slidable against a rivet 76. Contact 20 is connected through a Z-shaped strap 24 to a thermostatic latch 26 connected to a terminal 32 and adjustable by a screw 60 engaging an arm 62 on the strap 24. An abutment roller 48 is carried by a member 28 pivoted at 52 and urged towards the head 78 by a torsion spring 86, members 48, 78 being engaged by a wedging roller 82 mounted at one end of a link 80, whose other end is pivoted to a manually-operable button 12 passing through a hole in the strap 24. Depression of the button 12 forces the roller 82 between members 48, 78, the former being locked by the engagement of member 28 with a block 56 on the latch 26, and the latter moving to the right to close the contacts with a wiping action produced by the bar 66 and the spring 72, Fig. 2. The contacts may be opened by withdrawal of the button 12 or automatically on overload by clockwise movement of the latch 26, which releases the member 28 and allows the spring 72, assisted initially by the bar 66 and subsequently by the spring 86, to restore members 48, 78, 82 to the positions shown in Fig. 1. All the functional parts, apart from the button 12, are mounted between two parallel insulating plates which are telescoped into an insulating casing 10, Fig. 3 (not shown). Specification 907,595 is referred to.
Patent GB-1194636-A (GB)
Title: New Tetracyclic Diketones
Inventor: BRADLEY DONALD MICHAEL
IPC: C07C61/28
Filed: 1968-06-13
Abstract: 1,194,636. Tetracyclic diketones. BIOREX LABORATORIES Ltd. 22 April, 1969 [13 June, 1968], No. 28175/68. Heading C2C. The invention comprises compounds of the formula wherein R is a hydrogen atom or an alkyl radical and which are prepared by ozonizing a compound of the formula in an inert organic solvent.
Patent GB-1110191-A (GB)
Title: Process for preparing a polyhalogenated phenylene polyisocyanate
IPC: A61K31/21
Filed: 1966-06-23
Abstract: Polyhalogenated phenylenepolyisocyanates (see Division C2), derived by phosgenation from e.g. 1,3,5-trichlorobenzene-diamine and -triamine, tetrachlorobenzene-1,3- and -1,4-diamines, and the corresponding Br and F compounds, can be reacted with polyether polyols such as propoxylated glycerol (M.W. 3000) in presence of catalysts and blowing agents to form flame-resistant polyurethane foams.ALSO:The title compounds are prepared by introducing simultaneously into a reactor, and reacting with mixing therein at 130-180 DEG  C., phosgene and a solution in an inert organic solvent of a polyhalogenated phenylenepolyamine having in each position ortho to an amino group, a Cl, Br or F atom.  Specified starting materials are 1,3,5-trichlorobenzene-diamine -1,4-diamines, and the corresponding Br and F derivatives.
Patent GB-873207-A (GB)
Title: Polymeric materials
Inventor: LEWIS DENNIS AUBREY
IPC: C08F8/04
Filed: 1957-09-06
Abstract: Polymethallyl alcohols of molecular weight greater than 2000 are prepared by reducing at least 50% of the ester groups of polymethacrylic esters of corresponding high molecular weight in an inert liquid medium using a reducing agent which is soluble in the medium and which is either a complex aluminium hydride or an aluminium trialkyl of the formula:  <FORM:0873207/IV (a)/1> where R1 and R2 are alkyl groups.  Suitable reducing agents are lithium aluminium hydride and aluminium tri-isobutyl. Suitable reaction media for use with complex aluminium hydrides are N-ethyl morpholine, dioxan, tetrahydrofuran, tetrahydropyran and ethylene glycol dimethyl ether.  Aromatic hydrocarbons are suitable media for use with aluminium trialkyls.  Reduction to the polyalcohol is indicated by an infra-red spectrum absorption band in the product at 1040 cm-1, and reduction is complete upon the disappearance of an infra-red absorption band at about 1730 cm-1.  If complete reduction is desired a weight ratio of 0,5-1 of lithium aluminium hydride to 1 of polymethacrylate is preferred.  A white gel of the polymeric alcohol is precipitated and is separated from the reaction mixture by filtration or, preferably, by evaporating the reaction medium in a current of air and washing the polymeric alcohol with dilute acid to remove inorganic impurities.  The polymeric alcohols are soluble in dimethyl sulphoxide, tetramethyl urea, m-cresol, o-chlorophenol, ethylene bromhydrin, ethylene chlorhydrin, hot diethylene glycol or ethylene glycol, glacial acetic acid, and piperidine.  They may be crystallized by treatment with a swelling agent, e.g. a boiling monohydric alcohol of up to 7 carbon atoms. The polymers, preferably those free from ester groups, may be used to produce films and filaments, the films being of value as water-impermeable wrappings. Synthetic drying oils may be produced by esterifying the polymers with linoleic or linolenic acids.  Examples 1-13 describe the production of the polymers and, in some cases, their conversion into crystalline form by treatment with ethanol or n-hexanol.  Examples 14-17 describe the production of films by evaporating solutions of the polymers.  Examples 18-21 describe the production of filaments; this may be effected by melt-, dry- or wet-spinning, and in the last case the coagulating bath may be water or an aqueous solution of calcium chloride.  The films and filaments may be stretched.  The Provisional Specification mentions lithium borohydride, aluminium hydride and magnesium aluminium hydride as reducing agents for the polymethacrylic esters.  Specifications 527,532, 565,719, 837,227 and 841,388 are referred to.