baber/WOPTO huggingface dataset:
Patent GB-298273-A (GB)
Title: Improvements in or relating to electric welding
IPC: B23K11/06
Filed: 1927-07-08
Abstract: 298,273. Lawson, J. F. July 8, 1927. Pipes. - The longitudinal seams of pipes are electrically welded by causing an alternating current to flow across the seam which is fed lengthwise and submitted to pressure to complete the weld, the value of the current and its distribution lengthwise of the seam, the point at which the edges are brought together, the pressure and the speed of traverse being so correlated as to produce an intermittent weld, the interrupted portions bearing indications of having been heated to a higher temperature than the welded portions. Roller electrodes 2, which co-operate with one or more pressure rolls such as 4 whose axis is slightly behind that of the electrodes, are arranged at a relatively large angle and span a wide arc on the tube so that the centre of pressure is about 45‹ from the seam, so that the current enters and leaves the tube 1 at some distance from the seam, and thus furnishes a wide path for the current where it crosses the seam. The electrodes may be extended to a point close to the horizontal axis of the tube, the portion of the current passing under the tube being reduced by varying the pinch of the roll 4 to relieve the pressure of the tube against the heel of the electrode. The seam edges are brought together at a point 15 in advance of the point 16 in the plane containing the electrode axes bv an amount such that the seam in travelling between these points at a rate of 60 feet per minute receives three or five current impulses or half cycles of a 60 cycle alternating- current. The distance between these points is fixed by setting the main feed rolls and forming rolls or by an internal roll 17 supported by a bar 18. An arc is formed immediately in advance of the point 15 and to the rear thereof the tube shows highly heated or bright spots corresponding with this point and spaced apart a distance corresponding to the distance traversed between each impulse. These spots alternate with welded spots of darker colour. Minute holes caused by the arc may be eliminated or formed into lines by the pressure during welding and the welded spots form a series of sharp-pointed ovals placed end to end and divided lengthwise of the seam. This burr may be removed by hammers or by rollers 24, 28, 29 co-operating with rollers 25, 26, 27 on a mandrel mounted in an extension of the bar 18. The weld may be cooled by water applied at the point 23.
Patent GB-1019125-A (GB)
Title: Compositions having nematocidal properties
IPC: C07C309/65
Filed: 1964-05-01
Abstract: Compositions for combating soil-dwelling mematodes comprise as active ingredient a compound of the formula:- <FORM:1019125/A5-A6/1> wherein X represents a halogen atom (the two X's may be the same or different) and R represents a mono- or poly-halo straight-chain or branched-chain alkyl group containing from one to ten carbon atoms, together with inert liquid carrier material and a surface-active agent, or a solid carrier material with or without a surface-active agent.  The compositions may be in the form of solids, e.g. dusts, powders or granules, aqueous emulsions or dispersions or solutions in organic solvents.  The compositions may also contain insecticides, fungicides, different nematocides, harmones and/or fertilisers to form multi-purpose compositions.
Patent GB-743899-A (GB)
Title: Improvements in or relating to electric circuit arrangements for operating low pressure electric discharge lamps
IPC: H05B41/392
Filed: 1952-06-17
Abstract: 743,899. Control systems for space discharge apparatus. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. June 10, 1953 [June 17, 1952], No. 18297/53. Divided out of 743,844. Class 38 (4). An electric circuit arrangement for operating one or more L.P. electric discharge lamps 1, and including two gas-filled grid-controlled thermionic valves 2 connected in reverse parallel in the lamp discharge circuit so as to permit lamp current flow in each half-cycle of the A.C. supply voltage and means for varying the period of conduction of the valves during each halfcycle to vary the lamp(s) brightness, is provided with one or more power factor correction capacitors C5 connected in parallel with the load circuit and in series with the valves 2, and with respective surge current limiting non- capacitive impedances e.g. inductors L2 serially connected between each capacitor and the valves. Alternatively, to the circuit position shown the inductor L2 may be disposed also in series between the lamps and the valves, Fig. 2 (not shown), and in this position it may form part of an oscillatory lamp starting circuit forming the subject of Specification 743,844 and which may be embodied in the present circuit. The invention is applicable to hot and to cold cathode lamps, and the arrangements thereof and the discription of the valve controlling circuits are as in the said original Specification.
Patent GB-662302-A (GB)
Title: Improvements in rotors for axial flow elastic fluid compressors and turbines
IPC: F01D5/06
Filed: 1949-07-11
Abstract: 662,302. Turbines and compressors. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. July 11, 1949 [Sept. 22, 1948], No. 18325/49. Class 110(iii) The rotor of an axial-flow machine comprises axially-spaced discs 6 with integral axially extending flanges 7, 8 at different radii and connected together by an axial bolt 9 threaded through the discs and jamming the abutting flanges together. The bolt carries an external collar 10 abutting an internal collar on a part 13, and a screwed end engaging the threaded bore 11 of a part 14. The parts 13, 14 abut the flanges 7 on the end rotor discs. After it is tightened up the bolt is heated, the expansion being indicated on a gauge 20, and is again tightened and allowed to cool. The tensile strain is measured and controlled by a strain gauge 21 comprising an electric resistance wire. The flanges 8 may be welded together where they abut. A second axial bolt 22 has a head 23 engaging an internal collar 24 on the part 14 and a screwed end engaging the threaded flange 25 of a member 26 bolted to a coaxial machine. The bolt 22 may be tightened after heating. Specification 662,301 is referred to.
Patent GB-992798-A (GB)
Title: Coating process
IPC: B05D7/26
Filed: 1961-05-19
Abstract: A process for applying a coating to an article comprises applying thereto a suspension of a high molecular weight plastic having a particle size of from 10-300 microns in a volatile organic liquid in which the plastic does not dissolve, but in which it may soften, or in a mixture of such liquids, the plastic being one which is capable of flowing and forming a film on heating and which has a softening point below its decomposition point, and after evaporation of the volatile organic liquid subjecting the coating to a heat treatment at a temperature above the softening temperature but below the decomposition point of the plastic so as to form a continuous coating by fusion.  Suitable plastics include polyethylene, polypropylene, polyamide, polyvinyl chloride, polystyrene, cellulose acetobutyrate, acrylic and methacrylic esters and terephthalates.  The coating composition may also include pigments, dyestuffs, metal powders, fillers, blowing agents, stabilizers, suspending agents and plasticizers. Silicone oils may also be included.  The coating may be applied to metal sheets, moulded components, foils, wood, wood moulding compositions and fibre structures such as paper, textile fabrics, fibre fleeces, felts and the like.  The compositions may be used for lining vessels, for insulation against electricity, heat or sound, or as a bearing material for moving parts.  The coating may be applied by brushing, spraying, including electrostatic spraying, dipping, casting or flooding.  Decorative effects can be applied by means of embossing rollers.  If desired the process of the invention may be repeated to produce a multilayer coating.
Patent GB-458020-A (GB)
Title: Improvements in or relating to switch devices for use with electric rectifiers
IPC: H02M7/06
Filed: 1936-07-02
Abstract: 458,020. Rectifying alternating current. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. July 2, 1936, No. 18415. Convention date, July 5, 1935. [Class 38 (ii)] [See also Group XXXVII] An interlocked switch arrangement for ensuring a delay in the application of anode potential to a rectifier after the cathodeheating circuits have been completed comprises a slidable locking bar 3 between plates 1, 2 carried by the A.C. and D.C. switch shafts. Thus when the A.C. switch is closed the bar 3 becomes free to slide and be disengaged from the notch 4 in the plate 2, but this unlocking action is delayed until a thermal switch 19 is operated, the energization of the heating coil 18 of which is completed through a resistance 17 by closure of the A.C. switch. Thus when the contacts of switch 19 come into engagement after a predetermined time interval the circuit of an electromagnet 5 is completed and the energized electromagnet attracts the bar and unlatches the D.C. switch which may then be closed to complete the rectifier anode circuit. While the D.C. switch remains closed the A.C. switch is locked by the bar 3 in the closed position but after the D.C. switch has been restored to the open position subsequent opening of the A.C. switch restores the locking bar to the position shown in which the notch 4 is engaged by the locking bar.
Patent GB-963380-A (GB)
Title: Ethylene copolymers
IPC: C08F210/02
Filed: 1962-05-14
Abstract: Copolymers of ethylene and alpha-beta ethylenically unsaturated acids having from 3 to 8 carbon atoms per molecule, containing 0.1 to 10% by weight of said acid and having a melt index of 0.01 to 30g/10 min. are prepared by continuously charging ethylene, the acid and a free radical initiator into a reaction zone maintained at a pressure of at least 1000 atmospheres and at a temperature of 90 to 280 DEG C., the ethylene and the acid being charged in a weight ratio of 10,000:1 to 100:2, and in relative proportions depending on their reactivities, converting from 3 to 20% of the ethylene into copolymer and continuously removing the copolymer from the reaction zone. Specified acid comonomers are acrylic, methacrylic, crotonic, maleic, fumaric and itaconic acids and the methyl and ethyl hydrogen maleates and fumarates. Specified free radical initiators are oxygen; peroxides, e.g. benzoyl and lauryl peroxide and t-butyl peracetate; and azo-bis compounds, e.g. azo-bis (isobutyronitrile). The polymerization is preferably carried out in a stirred autoclave, the ethylene, the acid comonomer and the initiator being dissolved in solvents, e.g. ethylene, benzene, before injection into the autoclave. The copolymers can be used to coat cardboard, paper, metal foil, plastic films such as ethylene terephthalate films and other surfaces. They can be used as adhesives, e.g. binders for fibres, and they can be used as laminating resins.
Patent GB-729696-A (GB)
Title: Improvements in or relating to flexible drives
Inventor: MULHEIM JOSEPH ELBERT
IPC: F16F15/129
Filed: 1953-07-06
Abstract: 729,696. Mounting rotors of dynamo-electric machines. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 6, 1953, No. 18670/53. Class 35. [Also in Group XXIV] A generator 1 on an aircraft is driven through a torsionally resilient shaft 15, arranged inside its hollow armature shaft 8, splined at its opposite ends 16, 17 respectively to a driving member (not shown) on the engine and to the hollow shaft 8, the inner splines 17 having circumferential clearance, of the order of 15 degrees, sufficient for detuning torsional vibration, which latter is also frictionally damped. The torsion shaft 15 is elastically positioned axially by opposing springs 22, 25 between abutments 21, 26 on the shaft 15 and 23 in the shaft 8. As shown, the abutment 21 also forms a frictional damper comprising a segmental cone 21 axially loaded onto a coned surface 20 on the inner 'shaft 15 and radially against a cylindrical surface in the shaft 8. In Fig. 5, not shown, friction damping is provided,by a flat plate, integral with the inner shaft between the outer splines 16 and the end of the outer shaft 8, and gripped between a pair of axially spring-loaded plates one of which is freely splined on the end of the outer shaft. The axial positioning spring 22 then abuts directly on the inner splines 17.
Patent GB-613340-A (GB)
Title: Improved wheel and brake assembly for vehicles
IPC: B60T1/06
Filed: 1946-06-21
Abstract: 613,340. Wheel brakes. GENERAL MOTORS CORPORATION. June 21, 1946, No. 18675. Convention date, July 2, 1945. [Class 103 (i)] [Also in Group XXXII] In a wheel and brake assembly, the wheel 21 carries a removable brake drum 45 and closure disc 43 on its outer side, and its hub 19 is rotatably mounted by bearings such as 29 on a non-rotatable flanged axle 15, ingress of foreign matter to the brake mechanism enclosed in the drum being prevented by seals 31 at the ends of the hub and by a tongue and groove seal 33, 35 between the hub and axle flange 37. As shown, the axle 15 is secured to a casing 9, which is pivoted about a vertical axis 11 on a king-pin and encloses a joint between a driving shaft 5 and driven shaft 13, the latter being splined to a coupling disc 39 bolted to the disc 43. The brake drum is cast on to the disc 43 and is formed with radial extensions secured by bolts 47 to the wheel. The brake shoes 53 are expanded by hydraulic cylinders and are mounted on an anchor plate 51 secured to the axle 15. Steady rests 69 are provided to hold the shoes away from the disc 43. Liquid is supplied to the brake cylinders through a pipe 63, a radial passage 59 in the flange 37, an axial passage 57 in the axle 15, and a pipe 67.
Patent GB-1178954-A (GB)
Title: Method of Aluminum Plating with Diethylaluminum Hydride
Inventor: WILLIAMS BILLY JOHN
IPC: C23C18/02
Filed: 1968-04-19
Abstract: 1,178,954. Coating with aluminium. CONTINENTAL OIL CO. April 19, 1968, No. 18702/68. Heading C7F. In a method of coating a substrate with aluminium by contacting, e. g. by spraying or dipping, the heated substrate with a solution of diethylaluminium hydride, titanium or an alloy or a readily reducible compound thereof is added to the solution in an amount of 10 to 250 parts by weight per million of aluminium. The titanium compound may be titanium tetraalkoxide, isopropoxide, tetrabutoxide, tetrapentoxide or a halide, several of which are described. The substrate may be iron or steel, copper or brass, aluminium, ceramics, glass or plastics, e.g. phenolics, epoxy resins or halogenated vinyl compounds. The solution may also contain wetting, oxidizing or reducing agents e. g. calcium phenyl stearate, polydimethyl siloxane, lead soaps, Na 2 S 2 O 2 , anhydrous H 2 O 2 , KMn04, Li A1 H 4  , H 2 , O 2  or peracetic acid. Solvents are e. g. higher alkanes, aromatics and paraffins. When plating an oxidizable surface, it may be first coated with a heavy hydrocarbon. Reference has been directed by the Comptroller to Specification 1,122,359.
Patent GB-1028807-A (GB)
Title: Process for the preparation of endoaza-bicyclic compounds and new compounds thus prepared
IPC: C07D487/08
Filed: 1964-05-06
Abstract: The invention comprises endo-azabicyclic compounds of the formula III <FORM:1028807/C2/1> in which R is H, C1-C12 alkyl, phenyl, alkylphenyl in which the alkyl group contains 1-4 carbon atoms, benzyl or phenylethyl and their acid addition salts.  These compounds and others corresponding to the formula I <FORM:1028807/C2/2> may be prepared by heating a cyclic secondary diol of the Formula II <FORM:1028807/C2/3> with an amino compound of formula R-NH2 under pressure at 150-400 DEG  C. and in the presence of a hydrogenation catalyst, R being H or a hydrocarbon radical, n an integer from 1 to 4 and m an integer from 2 to 20.  The preferred catalysts are copper chromite, Raney nickel and ruthenium on an inert support.  The reaction may be carried out in the presence of a diluent, e.g. an aliphatic or cycloaliphatic hydrocarbon, araliphatic ether or a cyclic ether such as dioxan. Alternatively the compounds in which R is hydrogen may be prepared as described above and then reacted with an alkyl, aryl or aralkyl halide or sulphonate to replace hydrogen by another group represented by R.
Patent GB-1378802-A (GB)
Title: Railway marshalling yard system
IPC: B61J1/10
Filed: 1972-04-24
Abstract: 1378802 Railway systems GERMANY MINISTRY OF TRANSPORT 24 April 1972 18979/72 Heading B7L A railway marshalling yard system comprises sequentially a run-in zone I, a feed zone II and a collecting zone III having synchronized wagon propulsion means 1, 4 and 8 respectively, there being, in the run-in zone I, mechanism 2 for preliminary inspection of a wagon to collect operational data such as its intended destination and information concerning its mechanical condition, and in the feed zone II the propulsion means 4 being an endlessly revolving wagon transporting mechanism (two of which are employed in the symmetrical arrangement of Fig. 1) arranged transversely with respect to tracks of the run-in and collecting zones and comprising transfer cars 21, each of which is adapted to carry a wagon 14 and has retractable arresting or locking devices 6 for retaining wagons thereon in response to the inspection mechanism 2. The transfer cars 21 may be connected endlessly by joints 9 and be mounted on rollers 12 which are held in guide rails 11, there being track lengths 10 on the cars 21 for the wagons 14. The transporting mechanism 4 has a return path which may be above (as shown) or underground. The laterally outermost tracks 15 of classification or direction tracks 7 in the collecting zone III are repair tracks in which repair of wagons 14 may be carried out. The propulsion means 1 in the run-in zone I also serves to uncouple the wagons while the propulsion means 8 in the collecting zone III may couple wagons. The means 1 or 8 may be provided with a test coupling to test for wear and correct operation of the automatic central buffer coupling of a wagon.
Patent GB-874351-A (GB)
Title: Improvements in or relating to pulsed radars
Inventor: SCHELISCH ERNST FRIEDRICH
IPC: G06G7/625
Filed: 1959-06-04
Abstract: 874,351. Pulse radar. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Nov. 5, 1959 [June 4, 1959], No. 19136/59. Class 40(7) [Also in Group XL(b) ] In a pulse radar with two signal paths 8, 10 fed in parallel from receiver 5 I.F. output, a variable delay line is inserted in path 10 the output of which is combined in opposition with that of path 8 in detector 9 which feeds a display 20, an amplitude selector 19 separates out received signals exceeding a predetermined asjustable amplitude and means 13 dependent on the repetition frequency of the separated signals varies the delay in line 10, 11. Interference from jamming by a transmitter which follows the radar pulse repetition frequency (p.r.f.) is thus reduced. Transmitter 2 radiates with a random p.r.f. Selector 19 is adjusted to pass jamming pulses only and those trigger pulse generator 18 which feeds a circuit 14, 15 so chosen that the range of p.r.f.'s lies on one side of the circuit resonant frequency. Unit 13 output controls the delay line shunt capacitance constituted by zener diodes 11. Specification 634,108 is referred to.
Patent GB-1173386-A (GB)
Title: Sealing Compositions for Sealing Ceramics to Ceramics or to Refractory Metals
IPC: C04B37/00
Filed: 1967-04-26
Abstract: 1,173,386. Ceramic seals. WESTINGHOUSE ELECTRIC CORP. 26 April, 1967 [30 June, 1966], No. 19145/67. Heading B3V. [Also in Division C1]  A method of sealing ceramic or refractory metal members to ceramic members comprises applying a sealing composition to the members, securing the sealing areas together, and heating the assembly to secure a bond, the composition of the sealing material after the sealing operation being, by weight per cent: and 0.5-10% of at least one of: SiO 2  BaO, ZrO 2 , SrO, TiO 2 , BeO, ThO 2 , Y 2 O 3 . Also included may be 0À5-3À5% by weight of Nd 2 O 3 , Ta 2 O 5 , W0 3 , Nb 2 O 5 , V 2 O 5 . A chart is included listing examples. The method may be applied to sealing Ta, Nb or ceramic, e.g. alumina, discs 12; 14 or caps on the ends of high-temperature metal vapour lamps 10 of alumina. Alumina rings 24, 26 are sealed to the discs 12, 14. One method preparing the sealing composition includes mixing 1 mole of CaCO 2  with ¢ a mole of alumina in powder form and adding the selected other constituents. Amyl acetate and cellulose acetate are included to obtain the desired viscosity and adhesion, and the composition is applied by brushing or spraying, after sand-blasting and cleaning the metal. The seals are air-dried before the assembly is located in a molybdenum clamping fixture, Fig. 2, having a tantalum R.F. susceptor 40. Alternatively, the sealing composition may be formed into compacted preforms. The fixture is placed on a rod. 48 within the R.F. coil of a vacuum furnace and subjected to a heating schedule, Fig. 3 (not shown). Another method of preparing the sealing composition to avoid a degassing period in the furnace includes melting the composition in a gas crucible furnace, pouring the molton mixture into water, ball-milling the mixture in distilled water to a fine powder, adding amyl acetate and cellulose acetate and subjecting the mixture to ultrasonic vibrations. A different firing schedule, Fig. 4 (not shown), may then be used. After evacuation of the tube 10 and insertion of the discharge sustaining filling, the tantalum tube 18 is closed and welded at 22. The expansion ratio of the tube 10, end plates and the sealing material match each other.
Patent GB-874419-A (GB)
Title: Improvements in the production of cyclododecene
IPC: C07C13/275
Filed: 1960-05-31
Abstract: Cyclododecene is obtained by chlorinating cyclododecane to obtain a conversion of up to 60%, separating monochlorocyclododecane and dehydrochlorinating.  The chlorination is effected without catalyst or light in the presence of a solvent, e.g. chloroform, carbon tetrachloride or tetrachloroethane at 30-110 DEG C. using 0.75-0.8 mol of chlorine per mol of cyclododecane.  Preferably the chlorine is bubbled in at such a rate that no chlorine escapes above the liquid. The dehydrochlorination is effected at above 180 DEG C., e.g. 240-260 DEG C. in the presence of 0.1-5% by weight of a catalyst, e.g. salts, such as halides, sulphates or nitrates, of aluminium, alkali or alkaline earth metals, zinc, copper nickel, manganese or iron, alumina or iron turnings; the latter and ferrous chloride are preferred.
Patent GB-203309-A (GB)
Title: Elevation indicating drum for gun carriages with independent elevation
IPC: F41A27/24
Filed: 1923-07-26
Abstract: 203,309. Compagnie des Forges et AciÚries de la Marine et d'HomÚ- court. Aug. 31, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Sights and methods of sighting.-Guns having an independent line of sight are provided with a pointer 17 and drum 18 for indicating the angular movement of the gun with respect to an aiming cradle 1 which remains fixed when the gun 2 is elevated for range, the plane of the pointer and drum being adjustable for inclined trunnion axis. Fig. 5 shows in plan the pointer and drum hinged at 14 to a false trunnion 15 arranged on a part of the aiming cradle remote frcm the gun trunnion 4. The trunnions 4, 15 are connected by parallel motion links 19, 20, 25 to maintain the hinge 14 parallel to the guns axis. To adjust the drum about the hinge 14 to bring it into the vertical plane a screw device 12, Fig. 4, and a spirit level 22, Fig. 5. are provided. In a modification, the drum is arranged on the axis of the gun trunnions and is driven through multiplying gear.