baber/WOPTO huggingface dataset:
Patent GB-461684-A (GB)
Title: Improvements in or relating to laminated glass
IPC: B32B17/10
Filed: 1935-08-23
Abstract: The interlayer for compound glass is made by mixing polymerized vinyl acetate and/or a polymerized acrylic acid ester with 7--20 per cent of a softening agent, heating, and extruding to form a sheet.  The polymerization product is mixed with, for example, tributyl or tricresyl phosphate, dibutyl or diamyl phthalate at 80 DEG C., heated to 140 DEG  C., and extruded on to the glass which has been coated with an adhesive consisting of incompletely polymerized vinyl acetate and/or an incompletely polymerized acrylic acid ester dissolved in a high-boiling solvent such as benzyl alcohol, glycol mono-butyl ether, methylcyclohexanol, methylcyclohexanone, the acetate of methyl - 1.3 - butylene glycol, benzyl acetate, or cyclohexyl acetate.  Interlayer compositions of polyvinyl acetate plasticized with dibutyl phthalate and of polyethyl acrylate with diamyl phthalate are described. Specification 391,356 is referred to.
Patent GB-465103-A (GB)
Title: Improvements in or relating to the shaping of metal articles by the passage through them of an electric current accompanied by stretching
IPC: B21J5/06
Filed: 1935-09-24
Abstract: 465,103. Breaking metals. BENEDETTO, G. Sept. 24, 1935, No. 23775. [Classes 83 (ii) and 83 (iv)] Electric heating; stretching.-Blanks for projectiles &c. are severed from a rod or tube which is heated by a current passing therethrough while being gripped by vices moving apart by tension applied. By varying the tension and /or the amperage or voltage, abrupt-shaped or long tapering points may be produced on the work-pieces.- The vices are subjected to tension under the action of the pressure fluid of an hydraulic system supplied with pressure by a pump and electric motors. The severing of the blanks is diagrammatically shown in Fig. 5, vice jaws 16, 17 holding the rod or tube while vice jaws 18, 19 pull to severing point a part of the work. The result of successive severings produces blanks 72 having pointed ends, and serving for two .blanks. In Fig. 3 is shown a schematic arrangement of apparatus comprising an electric motor-driven pump 28, control valve 30, delay action valve 46, spring- loaded pressure-operated electric switch 50, pressure cylinders 25, 43, 44 and vice jaws 16, 17, 18, 19. When the vice jaws are open to receive the work, the latter is placed in position and the pump started. When the vice jaws are in contact with the work and a predetermined pressure built up in the ram cylinders 43, 44 a valve 59 is opened and a passage 47. supplies pressure to the cylinder 25 to provide the pulling strain on the work. The built up pressure operates the electric switch 50 to provide the electric current for the operation. A lost motion device is indicated at 38 and is operated at each end of the stroke of a ram 22 of the cylinder 25. The throw over mechanism operates a lever 37 and rod 36 connected to the control valve 30. A spring-loaded valve 31 allows liquid to escape by a pipe 33 to a reservoir 34 and is adjustable to vary the load. The rate of flow past the valve 59 or past a valve 69 is adjustable, one of these valves being operated in the particular direction in which the rams are working. The voltage and amperage of the circuit may be adjusted in the manner described in Specification 340,215. These various adjustments may be automatic and may be made with the aid of link mechanism and gearing. The Provisional Specification mentions the application to percussive drills.
Patent GB-1352931-A (GB)
Title: Electrphotographic materials and processes
IPC: G03G15/26
Filed: 1971-04-19
Abstract: 1352931 Electro-photographic element; developing electrostatic images MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 April 1971 [11 March 1970] 23796/71 Headings G2C and G2H A diascopic slide comprises at least one frame having a film supported therein, the film including a transparent conductive layer and a photoconductive layer, the conductive layer being electrically accessible. The slide may comprise frame members 11, 12, Fig.2 of plastics, paper or card and a film 13 comprising a transparent substrate of cellulose triacetate or polyethylene terephthalate having a layer of cuprous iodide with a portion 19 not covered by a layer of poly-N- vinylcarbazole. A cut-out portion 21 of the frame 11 provides electrical contact to 19. Other frame members having a hole or leaving most of portion 19 uncovered are also disclosed Figs.6 and 8 (not shown). In an electro-photographic development process, an exposed electro-photographic slide 10, Fig. 5, is held against an opening 27 by backing member 28 and spring 29. Developer liquid 32 is held in contact with the slide by valve 34 for the requisite time. Reference has been directed by the Comptroller to Specification 1305915.
Patent GB-424967-A (GB)
Title: Manufacture of compounds useful for protection against moths
IPC: A01N43/38
Filed: 1933-08-29
Abstract: Products useful as mothproofing-agents are prepared by condensing isatin-5-sulphonic acid with a homologue or derivative of phenol substituted in the nucleus by an alkyl group of at least three carbon atoms or by one or two halogen atoms or by halogen and an alkyl group.  The reaction is preferably effected in the presence of an acid condensing agent.  In the examples, isatin-5-sulphonic acid is condensed at 50--60 DEG  C. in the presence of sulphuric acid with (1) thymol, (2) amylphenol, (3) amyl-o-cresol, (4) 6-chloro-m-cresol, (5) p-chlorophenol, and (6) 2 : 4-dichlorophenol.  A sample has been filed under Sect. 2 (5) of a product obtained by condensing sodium isatin-5-sulphonate with C-amyl-o-chlorophenol in the presence of sulphuric acid.
Patent GB-791296-A (GB)
Title: Electrical insulating foils and method of producing same
IPC: H01B3/42
Filed: 1955-08-19
Abstract: The invention comprises foil for electrical insulation consisting of a self-supporting thin layer of the reaction product of an organic polyisocyanate and a branched organic polyhydroxy compound only.  It also comprises the manufacture of such foils by applying the components necessary for the formation of the reaction product to a metallic tape and reacting the components thereon, whereupon the polyurethane films formed on the tape are detached by wholly or partially dissolving away those parts of the support in contact with the films.  Aluminium foil or copper are suitable as the supporting metals, and hydrofluoric acid is preferred for removing the support. Preferred polyhydroxy compounds are branched polyesters.  In examples an aluminium foil is passed through a dipping solution and then through a vertical drying channel where it is heated at 150 DEG  to 300 DEG  C. to effect polycondensation.  The tape is then passed through a 1 per cent solution of hydrofluoric acid and the polyurethane foils are stripped off.  The dipping solutions are prepared by mixing (1) a solution of a polyester from adipic and phthalic acids and hexanetriol in methylene chloride, ethylene chloride and ethyl acetate with a solution of an adduct from toluylene diisocyanate in methylene chloride, toluene, ethyl acetate and chlorobenzene; (2) a solution of an adipic acid/trimethylol propane polyester in ethyl acetate, benzene and monomethyl glycol ether acetate and a solution of toluylene diisocyanate and hexanetriol in ethyl acetate, toluene, xylene and monomethyl glycol ether acetate; (3) a polyester from phthalic and adipic acids, 1,3-butylene glycol and trimethylol propane dissolved in ethyl acetate and monomethyl glycol ether acetate, and toluene diisocyanate and hexanetriol in the same solvents; (4) a similar polyester solution to (3) and a solution of the reaction product of trimethylolpropane and toluylene diisocyanate containing phenol dissolved in ethyl acetate, toluene and cyclohexanone.
Patent GB-1158843-A (GB)
Title: Light-Sensitive Copying Material
Inventor: DELZENNE GERARD ALBERT
IPC: G03F7/004
Filed: 1966-05-27
Abstract: 1,158,843. photo-sensitive materials. GEVAERT-AGFA N.V. April 27, 1967 [May 27, 1966], No.24012/66. Heading G2C. [Also in Division C2] A photo-sensitive material comprises a support coated with a layer containing an alkali soluble polymer and a compound of formula where R is an alkyl or halogen substituted alkyl group with 1-4 carbon atoms, aryl, halo - or nitro-alkyl or an aralkyl group and R<SP>1</SP> is hydrogen or a nitro group. A positive printing plate is produced when the compound is mixed with an alkali-soluble resin such as a novolak or a styrene/ maleic anhydride copolymer and coated on a support, imagewise exposed and developed with aqueous alkali to remove the exposed areas. If a metal support is used, this may subsequently be etched.
Patent GB-598282-A (GB)
Title: Improvements in or relating to interferometric comparators for linear dimensions
IPC: G01B9/02
Filed: 1945-09-18
Abstract: 598,282. Optical gauging apparatus. BENDIX AVIATION CORPORATION. Sept. 18, 1945, No. 24142. Convention date, Aug. 16, 1944. [Class 106 (ii)] [Also in Group XX] An interferometric gauge comprises two optical flats mounted with freedom for slight relative angular movement wherein one of the flats is supported in substantially parallel relation to the other by a pair of aligned flexible hinge plates each fixed to one of the flats and adjustably anchored to the other flat. The interferometric gauge comprises an optical system with a source 20 of monochromatic light which passes through an aperture in a cap 43 on to a convergent lens 24 so that the cone is converted into parallel rays which are reflected back from the surfaces 28, 29 of two optical flats 26, 27 and converged by lens 24 to pass through an opening in a diaphragm near the opening in the cap 43. The interference pattern may be viewed through an eye-piece 40. The work-holder and mounting means for the optical flats comprises a base 68 on which is mounted the flat 27. The upper flat 26 is fixed in a mounting ring 69 having radially extending arms 70, 71 to which are attached the upper ends of flexible hinge members 72, 73. The lower ends are fixed to an anchorage block 74, vertically adjustable by - screws 76, 77. Coarse adjustment may be made by bushings 78, 79. One jaw of the gauge is provided by the surface 85 of a block 82 with adjusting means 83. The upper jaw is formed by an abutment 86, formed as a projection from the mounting ring 69, which may be tilted slightly by the screw 83. The work-piece 89 is held in position by an arm 90. Means for controlling the temperature in the cabin surrounding the apparatus is described.
Patent GB-1262826-A (GB)
Title: Piston pumps
Inventor: KRAUS JOHANN
IPC: F04B53/10
Filed: 1970-05-19
Abstract: 1,262,826. Reciprocating pumps. J. KRAUS. May 19, 1970, No. 24246/70. Heading F1A. A hand-actuated pump with provision for free through flow comprises a cylinder 1, e.g. of transparent plastics, having an outlet 3 controlled by a valve 9, and a bucket piston on a hollow piston rod 15 having an inlet 22 controlled by a valve 13, the outlet and inlet valves being operated by movement of the piston and mounted on members 10 and 14, respectively, member 10 being telescopically slidable within member 14 and frictionally engaging its interior by resilient lugs 12, and member 14 frictionally engaging the interior of rod 15 by resilient lugs 24. Free through flow is obtained by moving the piston fully outwardly to open the outlet valve and permit opening of the inlet valve by the liquid supply, the flow being stopped by moving the piston inwardly to close the inlet valve.
Patent GB-226876-A (GB)
Title: Improvements in power-driven mechanism for breaking pig iron, rock or other material
IPC: B23D31/00
Filed: 1923-10-01
Abstract: 226,876. Dovel, J. P. Oct. 1, 1923. Multiple-way cocks for fluid-operated tools. A single manually-operated valve 28 controls the flow of fluid through an inlet port 31, an exhaust port 32 and a regulatable relief port 33, the latter port being provided to permit of cushioning the power stroke. The valve 28 which works in a bushing 27 in a valve casing 26 and is formed with a short lip 39 and a longer lip 40, is provided with a stem 41 operatively connected to a handle through intermediate connections comprising a crank 43, a link 44, a crank 45 and a shaft 46. The handle has an extension with a stop screw whereby its upward movement may be limited.
Patent GB-592237-A (GB)
Title: Improvements in or relating to lighting fittings for adjustable drawing-boards
IPC: F21V21/14
Filed: 1944-12-06
Abstract: 592,237. Supporting lamps. COOPER, H. C. Dec. 6, 1944, No. 24431. [Class 75 (iii)] [Also in Groups XIV and XV] A lighting fitting for an adjustable drawing- board 10 comprises a lamp 30 attached by articulated arms 28, 29 to a tubular member 16 which is rotatably mounted in a cable junction box 17 rigidly fixed to a rock-shaft 18 mounted in bearings 20 on the board. The rock-shaft 18 is rigidly attached to a tube 22 telescoping on a member 23 pivoted to a pin 25 extending from one side of the stand so that a large angular movement of the board from the vertical only causes a small tilting of the lamp. The drawing-board may be mounted by a leverlink mechanism 11 on pillars 12 which are vertically adjustable in sockets 13 in a frame 14. The board is balanced by counterweights 15.
Patent GB-150340-A (GB)
Title: Improvements relating to the heating of oil delivered by lubricating pumps
IPC: F16N39/04
Filed: 1920-08-23
Abstract: 150,340. Friedmann, A., [Firm of]. April 10, 1914, [Convention date]. Heating lubricant. - A lubricator for locomotives &c. comprising an oil-container containing one or more pumps is provided with a steam-heated suction chamber d communicating with the container through openings e. A chamber f to which steam is admitted is arranged below or within the chamber d. To prevent heated oil from returning from the chamber d to the container a the openings e are placed below the top of the chamber d, or are of small size so that a current flows through them when the pumps are working.
Patent GB-813380-A (GB)
Title: Radio training apparatus
Inventor: DAVIDSON JOHN HUGH MACCREADY
IPC: G09B9/26
Filed: 1955-08-25
Abstract: 813,380. Radio training apparatus. COMMUNICATIONS PATENTS Ltd. Aug. 25, 1955, No. 24470/55. Class 40 (4). Apparatus for training an operator to tune in a radio receiver comprises a Wheatstone bridge whose diagonal output controls the amplitude of an audio signal in such a manner that the audio signal is at a maximum when the bridge is balanced. As shown, the bridge comprises tapped resistors 1, 2 the latter being preset by an instructor and the former being controlled by the trainee. The bridge is fed from an alternating source 3, the output from the diagonal 4, 5 being amplified by the triode 6 whose output is rectified at 10 to provide negative bias for the triode 16 whose grid is fed with an audio signal. When the bridge is balanced the bias is thus zero and a maximum output is obtained from the terminal 17. To improve the response the output from the rectifier 10 is also fed to the grid of the valve 6, so that the operating point of this valve moves up the Ia/Yg curve as the circuit comes " into tune," A " range " potentiometer 18 introduces variable bias and negative feedback for simulating different strengths of received signal. To simulate the falling off of noise in a receiver having A.G.C. when the receiver is brought into tune noise is fed to the output terminal 17 via a rectifier 23 having one end variably biased in accordance with the anode current of valve 6. Thus when the circuit comes into tune the voltage at the left-hand end of resistor 21 falls thereby increasing the resistance of the rectifier 23 to reduce the noise output. Variation in selectivity as between medium and short-wave bands may be simulated by varying the voltage of the input source for the bridge. To simulate differences in selectivity in various parts of a frequency band the amplitude of the A.C. source for the bridge may be varied e.g. by interposing a variable potentiometer or tapped autotransformer between the source and the bridge the interposed element being ganged to the tuning potentiometer. The trainer may include a plurality of tapped resistors 25 ... 27 operating similarly to resistor 2 and each having its own valve circuit and audio input. With the tappings on these resistances set to different " frequencies " the trainee may then change setting of the tapping on resistor 1 to time in the various " stations in succession. The different " frequencies may be chosen sufficiently close to simulate adjacent channel interference.
Patent GB-226883-A (GB)
Title: Improvements in and relating to the control of synchronous electric motors
IPC: H02K19/12
Filed: 1923-10-02
Abstract: 226,883. British Thomson-Houston Co., Ltd., and Whitaker, r. P. Oct. 2, 1923. Regulation of exciting machines.-Continuouscurrent generators for exciting the fields of synchronous motors have their field windings automatically regulated by torque-motors responsive to the load current.
Patent GB-820765-A (GB)
Title: Improvements in or relating to developing tanks for photographic film or plate
IPC: G03D13/06
Filed: 1957-08-07
Abstract: 820,765. Developing tanks. WALTER, C. I. Aug. 7, 1957, No. 24851/57. Class 98(2) A developing tank for photographic film or plate comprises an open topped container having a floor and two opposed parallel walls, means for supporting within the container in individual spaced relationship a plurality of films or plates, a closure means adapted to close the container in a light proof manner such that the interior is open to the atmosphere and means for introducing liquid into the container whilst closed in the said manner. As shown the opposed walls 3 of the container 1 have parallel grooves 6 which widen at the tops 8 and hold the film plates 9. The top edge of the container has a recess bounded by flanges 12 and 13. The lid 17 has two spaced flanges 18 and 19 such that when closed the inner face of flange 18 contacts the outer face of flange 13, both of which faces are bevelled to provide a light-tight fit. Liquid may be poured into the tank when closed through a hollow downward projecting conical frustum at one end of the lid 17 which projects part of the way into a conical recess in a boss 14 at the corresponding end of the tank and the liquid may be poured out of the tank via a spout at the opposite end of the lid.
Patent GB-886888-A (GB)
Title: Coil form and method
IPC: H01F41/04
Filed: 1960-07-18
Abstract: 886,888. Transformers and inductors. RESINITE CORPORATION. July 18, 1960 [April 22, 1960], No. 24905/60. Class 38 (2). [Also in Group XXVIII] An inductor comprises a winding on a tube comprising layers of ethylene terrephthalate secured by polyester adhesive. Tube 16 is made by winding helically on a mandrel 12 two overlapping strips 10, 11 of " Mylor " (Registered Trade Mark), coated with said adhesive. A brass or powdered iron core may be inserted in the tube, threaded into embossed indentations, the tube being subsequently heated under vacuum to anneal the plastic. A final coating of polyester adhesive may be applied.
Patent GB-405732-A (GB)
Title: Improvements in and relating to machines for cutting or trimming hedges, grass edgesand the like
IPC: A01G3/053
Filed: 1932-09-07
Abstract: 405,732. Hedge-cutting machines ; lawn-mowers. ALLAN, A. B., 7, Dowanside Road, Hillhead, Glasgow. Sept. 7, 1932, No. 24915. [Class 6 (ii).] In a machine for trimming hedges, grass edges, &c. comprising a stationary disc having radial'y projecting fingers on a portion of its periphery and a rotary driven cutter co-operating therewith, the outer extremities of the radial fingers 2 of the stationary disc 1 are spaced within the circle 1<1> forming the edge of the disc. A cover-plate 4 is secured to the disc 1 by studs or bolts 5 spaced inwardly from its edge and is spaced inwardly at 4<1> to provide a gap in which the cutter operates. The rotary cutter 8 has angled cutting edges 8<3> and is secured to a bevel wheel 10 loosely mounted on a fixed axle 6. The cutter 8 may be of the shape shown in Fig. 3. The bevel wheel 10 is driven by a pinion 11 on a shaft 12 which rotates in bearings 13 in the cover-plate 4 and is driven by a flexible shaft rotated by manual or power driving means. The driving means may comprise a petrol or electric motor mounted on a wheeled trolley. An automatic clutch may be inserted in the drive and may comprise a spring- urged member 19, Fig. 4, carried by the bevel wheel 10 and engaging the cutter 8. Alternatively the clutch may be formed of friction discs 18, Fig. 5, in the drive to the shaft 12 or it may be in the form of a slipping-belt drive. Grooves and holes may be provided in the bearings and cover-plate for lubricating purposes.
Patent GB-203906-A (GB)
Title: An improved oil sump for motor-car engines
IPC: B60R17/00
Filed: 1922-09-15
Abstract: 203,906. Chatt, L. D. Sept. 15, 1922. Channels and reservoirs in engine crank casings.-To prevent flooding of the crank case of a Ford engine when the vehicle is going downhill, the baseplate a of the crank case is provided with holes d adjacent the forward edges of the troughs c through which excess oil drains into an auxiliary sump e located beneath the plate, from which it returns to the fly-wheel sump f through a pipe g.
Patent GB-249849-A (GB)
Abstract: 249,849. Etablissements Poulenc FrÞres. March 28, 1925, [Convention date]. Salts of quinine, quinidine and other cinchona alkaloids with acetylamino-oxyphenyl-arsinic acids.-Cinchona alkaloids are transformed into salts by treatment with an acetylamino-oxyphenylarsinic acid. The salts may also be obtained by double decomposition of a salt of the alkaloid with a salt of the arsinic acid. The products possess antiseptic properties. Examples are given according to which hot aqueous solutions of quinine hydrochloride, and sodium 3-acetylamino-4-oxyphenylarsinate, or of quinidine and 3-acetylamino- - 4-oxyphenylarsinic acid, are prepared, and after filtration, allowed to crystallise.
Patent GB-665053-A (GB)
Title: Improvements in or relating to electric resistor assemblies
IPC: H01C7/00
Filed: 1949-09-29
Abstract: 665,053. Pointed circuits; resistance coatings and. deposits; combinations and sets of resistances. INTERNATIONAL RESISTANCE CO. Sept. 29, 1949 [Oct. 7, 1948], No. 25020/49. Classes 36 and 37. A method of producing resistance networks includes the steps of depositing a resistance coating or layer on one surface of a thin sheet of insulating material, depositing a highly conductive termination coating or layer in spaced areas on said resistance coating and removing coatings only or the latter and the insulation material throughout predetermined zones to form a plurality of resistors. Fig. 16 shows one embodiment designed to provide in a complete unit all the resistors and condensers required in a two-stage amplifier, Fig. 17. To make this unit a rectangular sheet 92 of insulating material, Fig. 15 has a resistance coating 94, for example of carbon composition, and silver termination coatings 96, 98. Beneath the lower termination coating 98 there is another silver coating 100 separated from 98 by an uncoated strip 102. A single stamping operation produces the apertures and terminal holes as shown in Fig. 16, thus to form resistors of the required value and properly interconnected to satisfy Fig. 17. The required four capacitors 154, 156, 158, 160 are then added appropriately connected. To complete the amplifier from the Fig. 16 unit assembly it is only necessary to connect the valve sockets to the appropriate terminal holes. Figs. 1 to 14 (not shown), illustrate various other networks of resistance strips and termination coatings produced from coated rectangular sheets either by punching, stamping, cutting out or simply scraping away the coatings or a combination of all these. The formed resistance strips may vary in length, breadth and thickness of coating as required and coating compositions of differing resistivities may be employed for different strips.