baber/WOPTO huggingface dataset:
Patent GB-284445-A (GB)
Title: Slide rule for paper makers
IPC: G06G1/12
Filed: 1926-12-28
Abstract: 284,445. Black, J. Dec. 28, 1926. Slide-rules for calculations relating to weights &c. of paper. The scales A and D on the rule and the scale B on the slide read from left to right but the scale C on the slide reads reversely and the graduations are such that in the normal position of the slide the " demy " length and width divisions of scales C and D coincide and the graduations of the other scales are also coincident. Cursors F mounted in a groove E are graduated for reams having numbers of sheetsvarying from the standard of 480.
Patent GB-210575-A (GB)
Title: Foot cushions and the like
IPC: A61F7/00
Filed: 1922-12-01
Abstract: 210,575. Johnston, G. A. Dec. 1, 1922. Muffs.-A combined foot cushion and foot muff comprises in combination a flat shockabsorbing device 2 enclosed in a cover 1 together with a hood portion 3. The resilient member may consist of an inflatable bladder, inflatable tubes, or indiarubber sponge, and the hood, which may be formed integrally with or separtaely from the cover 1, may be fur lined, and may carry a rear upward extension.
Patent GB-262281-A (GB)
Title: Improvements in earth connections for electric conductors
IPC: H01Q1/48
Filed: 1925-12-30
Abstract: 262,281. Eley, A., and Ryeland, A. M. Dec. 30, 1925. Earth-plates and earth connections.-Earth connections for wireless apparatus, lightning conductors, electric lighting and power systems, &c., consist of an inner tube C provided at its lower end with tongues C<1> and adapted to be driven into an outer tube A provided at its lower end with a conical, pyramidal or like surface F by which the tongues C' are spread laterally as shown in Fig. 1. The spreading surface F may be formed in one piece with a spike G, &c., to enable the tube A to be inserted in the ground and with a collar D from which it is spaced by pillars E and which is fitted into the end of the tube A. The upper ends of the tubes are provided with driving collars B, H which, in the assembled positions, may be secured together by a bolt and nut acting as the attachment of the conductor N.
Patent GB-1018364-A (GB)
Title: Prevention of cold flow in elastomers
IPC: C08C19/00
Filed: 1964-08-12
Abstract: The tendency of a rubbery polymer to cold flow, the polymer having been prepared with a lithium-based catalyst, is reduced by heating the polymer in the presence of from 0.075 to 1.75 millimols per 100 grams polymer of an organic peroxide or hydroperoxide; from 0.015 to 1.2 parts per 100 polymer of maleic acid or anhydride and 1 to 10 parts of zinc oxide, magnesium oxide or lead oxide may also be present. Long lists of peroxides include benzoyl peroxide, dicumyl peroxide, di-t-butyl peroxide and 4-chlorobenzoyl peroxide. Specified polymers are those of butadiene, isoprene, piperylene, 2-3-dimethyl butadiene, 1-3 octadiene, 4 - 5 - diethyl - 1 - 3 - octadiene and 2 - 5 - dimethyl - 1 - 3 - decadiene and copolymers thereof with vinyl-substituted aromatic hydrocarbons. The heating is preferably carried out at 250 DEG  to 350 DEG  F. for 1 to 120 minutes.
Patent GB-1080581-A (GB)
Title: Information storage apparatus
Inventor: CHANG JAMES TSENG HSU
IPC: G11C11/06
Filed: 1964-08-13
Abstract: 1,080,581. Circuits employing bi-stable magnetic elements. WESTERN ELECTRIC CO. Inc. Aug. 13, 1964 [Aug. 15, 1963], No. 32976/64. Heading H3B. [Also in Division G4] In an information store, Fig. 1, in which an apertured sheet 11 of magnetic storage material has each hole threaded by a conductor 15 so as to define respective storage elements, one face of the sheet is covered with a layer of photoconductive material 12 in contact with the conductors, the resistance of the photo-conductive material in a selected local region being lowered by a light beam so that a write or a read pulse from respective sources 8, 16 may pass through the conductor adjacent the selected local region. The pulse circuit includes a transparent conductive electrode 13, a conductive backing plate 14 and a resistance 17 across which the voltage developed by a pulse is applied to a strobed sense amplifier 9. In a modification, Fig. 2 (not shown), the associated transparent electrode and photoconductive layer and the backing plate are in the form of co-ordinate strips, each backing strip being connected through a respective threshold circuit to a strobed sense amplifier. Separate sensing circuits are used in the remaining embodiments, Figs. 3 to 6 (not shown) and Fig. 7, in the form of separate sense conductors located in further holes in the sheet adjacent to the write/read conductors. These additional conductors are connected in series by printed connections so as to provide a single sensing circuit in which a voltage is induced if any storage element is switched, Fig. 3 (not shown), or separate sensing circuits for each column of storage elements, Fig. 5 (not shown). Fig. 7 shows a modification of Fig. 5 in which a hollow cylindrical body 111 of magnetic storage material is used, the photo-conductive layer 112 being plated inside the cylinder as rings about the axis. Each photo-conductive ring has a transparent electrode 113 and is connected to write/read conductors 115. Adjacent sense conductors are interconnected by printed conductors, the sense conductors in different axial planes being connected to respective output resistors 120-123. The light beam source consists of a fixed lamp 137 about which is rotated by a drive 133 concentric sleeves 134, 135 having aligned axial slits 130, 131 for the light beam, the arrangement permitting a row of magnetic storage elements to be read or written into simultaneously. A modification is suggested in which the light rotates externally of the cylinder. The magnetic storage material may be a magnesium-manganese-zinc ferrite, and the photo-conductive material may be cadmium sulphide, lead sulphide, lead telluride or intrinsic silicon deposited by plating.
Patent GB-263864-A (GB)
Title: Improvements in or relating to hydro-pneumatic shock-absorbers
IPC: F16F9/48
Filed: 1926-12-30
Abstract: 263,864. O'Neill, J. H. Dec. 31, 1925, [Convention date]. Pneumatic springs; fluid-friction vibrationdampers.-Relates to hydro-pneumatic shock-absorbers in which two tubular telescopic members are connected respectively to an inner cylinder and to a piston therfor moving below the free liquid level. In the construction shown, the telescopic members 6, 7 are connected by ball joints 4, 5 to the frame and axle of a motor vehicle. The cup-shaped inner cylinder 16 is connected by an annular part 18 to the inner telescopic member 6, while the piston-rod 23 is secured to the lower end of the outer member 6. The piston-rod 23 slides in the lower part of the cylinder 16. The piston consists of a loose annular member 20 movable between a solid plate 21 and a perforated plate 22, so that liquid may flow freely upwards but slowly downwards. The piston moves above and below the normal position in which it coincides with the holes 28 through the cylinder 16. As the apparatus moves from the normal position to the fully compressed position in which it is shown, liquid flows freely upward from the lower chamber 30 into the upper chamber 8 past the piston valve 20, while on the return movement to the normal position liquid can only flow slowly between the edge of the valve 20 and the cylinder 16, so that movement from the normal to the fully extended position is free but return to the normal position is retarded. The liquid level when the parts are fully compressed is indicated at 27. Stops 26 prevent relative rotation of the cylinder 16 and piston when the apparatus is fully extended so as to enable the piston-rod 23 to be screwed on or off the stem 24. Specification 250,331 is referred to.
Patent GB-1429915-A (GB)
Title: Dispersions of silver halide developing agents
IPC: G03C8/36
Filed: 1974-07-25
Abstract: 1429915 Silver halide developing agents FUJI PHOTO FILM CO Ltd 25 July 1974 [26 July 1973] 32991/74 Heading G2C A silver halide developing agent dispersion comprises a hydrophilic colloid having dispersed therein fine droplets of a silver halide developing agent dissolved in a substantially water-insoluble solvent, and at least one surface active polymer containing recurring units of the Formula wherein R is a hydrocarbon chain or a fluorine substituted hydrocarbon chain containing 4 to 22 carbon atoms or an aryl group; n is 0 to 40; and M is a hydrogen atom or a cation. The developing agent is defined as a compound capable of acting as a reducing agent for an exposed silver halide, such as a dye developer and/or an auxiliary developing agent. The polymers are esterfied maleic anhydride polymers or polymers of maleic acid half esters or their salts, including copolymers with e.g. ethylene, styrene, methyl vinyl ether, methyl methacrylate, ethyl acrylate, acrylonitrile, acrylamide, vinyl acetate and vinyl chloride. The dispersion may also contain conventional surface-active agents. The dye developers are conventional. Derivatives of hydroquinone, catechol and dihydroxy-tetrahydronaphthalene are specified as auxiliary developing agents. The developing agents may be dissolved in a high boiling solvent (e.g. b.p. above 150C) with optionally an auxiliary solvent and the solution is then dispersed in an aqueous solution of hydrophilic colloid to form colloidal particles of size less than 1 Á, e.g. down to 0.3 Á. An oleophilic polymer or viscosity increasing agent may be added to the oil phase of the dispersion.
Patent GB-943511-A (GB)
Title: Improvements in or relating to sheet plastic
Inventor: PEARCE ERIC NORMAN
IPC: B32B27/00
Filed: 1961-09-14
Abstract: 943,511. Laminates. FORD MOTOR CO. Ltd. Aug. 30, 1962 [Sept. 14, 1961], No. 33023/61. Heading B5N. A sheet of thermoplastic material 10 reinforced with a textile fabric bears a panel or pattern over a part of one surface of a non- reinforced thermoplastic material 8 which is dielectrioally welded thereto. The non-reinforced thermoplastic material is polyvinyl chloride, and the base sheet 10 is composed of polyvinyl chloride sheet with a reinforcing cotton backing. A polyvinyl chloride foam 9 may be incorporated as a riser being the reinforced and non-reinforced materials, the foam being collapsed along the lines of application of dielectric heat so that a relief pattern is obtained.
Patent GB-1198514-A (GB)
Title: Ultrasonic Compound Transducer.
Inventor: POHLMAN REIMAR
IPC: B05B17/06
Filed: 1967-07-18
Abstract: 1,198,514. Piezo-electric motors. R. POHLMAN and E. G. LIERKE. 18 July, 1967 [18 July, 1966], No. 33026/67. Heading H2A. [Also in Divisions B1, B2, F1 and H4] A transducer for atomizing liquids comprises a mechanical velocity transformer 2 (Figs. 1, 3) having a main body portion 2<1> of circular crosssection and either one end portion 3 (Fig. 1) or two end portions 3, 3<1> (Fig. 3) of circular and thinner cross-section than the main body portion. A piezoelectric disc 1 of small axial length compared with the axial length of the transformer 2 is cemented to the end of the main body portion remote from the end portion 3 or one of the two end portions 3, 3<1> (Fig. 3). The disc 1 is located at a position of low mechanical stress compared with the stress at the, or both, end portions. The transducer is used as a halfwave resonator. Disc 1 may be of quartz, barium titanate or lead zirconate-titanate. The transformer 2 may be of aluminium or titanium. The end portion 3 may be exponential or Gaussian. Liquid is atomized by feeding it to the upper end of the transducer of Fig. 1 by an external pipe. In the arrangement of Fig. 3 a bore 5 passes axially from one end of the transducer to the other. One end portion 3<1> is dipped into liquid to transmit liquid through the bore 5 by an ultrasonic pump effect. The bore is narrower at the end 6 than at the other end, whereby the pumping capacity is slightly smaller than the atomization capacity. The atomization capacity is increased by a disc 4<1> operating at bending resonance. Liquid is maintained at a constant level by a constant head device comprising a float 13, a valve 14 and a supply pipe 15. The transducer may have the end 6 at the boundary layer of two immiscible liquids and provide emulsification.
Patent GB-754920-A (GB)
Title: Annealing furnace
IPC: C21D9/00
Filed: 1954-11-16
Abstract: 754,920. Annealing furnaces. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 16, 1954 [Nov. 18, 1953], No. 33127/54. Class 51(2). In an annealing furnace of the type having a work container arranged within the furnace casing and adapted to be charged from above, the container 4 is fixed to the top 5 of the casing 1, and is provided with a sheet metal cover 6 from which depends a tube 9 provided with circular steel baffles 8 to cut down radiation and enclosing a pyrometer 10. The casing 1 is lined with insulating material 2 and carries heating elements 3. Connections 7 are provided by which the container 4 and the casing 1 may be evacuated. At working temperatures, the container 4 may rest upon a spring-supported base.
Patent GB-1103430-A (GB)
Title: Process and apparatus for manufacturing sheet glass
Inventor: JAVAUX GUSTAVE
IPC: C03B15/02
Filed: 1965-08-03
Abstract: <PICT:1103430/C1/1> In the manufacture of glass sheet by drawing molten glass upwardly from a bath and feeding it horizontally to an annealing lehr, the forward and return currents of glass in the melting and refining zones of the glass tank 9 are arranged to flow freely into and out of the drawing zone, e.g. by increasing the depth of the drawing zone to that of the melting zone, and the glass passes by way of an enclosed drawing chamber through a restricted opening to the horizontal lehr.  The opening may be between a screen 22 and a depending, preferably flexible, curtain 23.  Cold air currents in the drawing chamber are thus minimized.
Patent GB-1527220-A (GB)
Title: Display devices
IPC: G09B1/02
Filed: 1975-10-09
Abstract: 1527220 Matching boards P A H SEYMOUR 9 Oct 1975 [29 July 1974] 33331/74 Heading AGH [Also in Division G5] A device for use as a game comprises a translucent working surface 4, a length of translucent sheet material 7 with reference information thereon, and a length of transparent sheet material (9), the sheets each being movable so that selected areas thereof may be superimposed with the working surface, at least one sheet being supported on rollers, and on illumination by a lamp 13, battery 14 and mirror 11 arrangement the information on the translucent sheet can be viewed through the transparent sheet. One sheet can be a continuous band. The transparent sheet may be blank (to be marked) or have information thereon corresponding to the translucent sheet (a game being played by aligning corresponding information).
Patent GB-154590-A (GB)
Title: Improvements in electric batteries
IPC: H01M10/12
Filed: 1920-11-27
Abstract: 154,590. Pepper, D. Nov. 29, 1919, [Convention date]. Electrodes; separators; diaphragms; absorbents. -A cell comprises a container A of lead-antimony alloy containing between three and six per cent of antimony and pasted with active material B, an absorbent jar C of wood pulp, blotting-paper, or other material which expands when wet, and an inner pasted electrode, the jar C pressing against the active material of both electrodes. The active material may consist of lead peroxide, sulphuric acid being used as electrolyte. The electrode may consist of a lead grid bent into the form shown in plan in Fig. 3, a terminal F<3> projecting from the uppermost of two arms F connecting the portions F<1>, F<2> of the grid. The jar C is filled with absorbent material similar to that of which the jar is composed and it may be provided with a flanged opening in the bottom. The cell is closed by a layer of sawdust G and an asphalt seal H.
Patent GB-521639-A (GB)
Title: A process for purifying water
IPC: C02F1/52
Filed: 1938-11-19
Abstract: 521,639. Purifying water, ADLER. R. Nov, 19, 1938, No, 33707. [Class 46] In a process of purifying water the purifying agent consists of the reaction product obtained by a treatment of activated carbonaceous power gas producer ash with sulphuric acid. The ash may be obtained as. described in Specification 516,645, [Group III]. When the ash contains less than 10 per cent of aluminium oxide, clay is added to obtain this percentage, the clay being heated prior to, or preferably after, being mixed. to a temperature from 700‹C. to 800‹C., and the mixture being treated for about one hour with sulphuric acid at a temperature of about 180‹C.
Patent GB-1032651-A (GB)
Title: Flushing cisterns
IPC: E03D1/05
Filed: 1962-09-03
Abstract: 1,032,651. Siphon-discharge water-waste-preventing cisterns. K. SILK. Aug. 27, 1963 [Sept. 3, 1962], No. 33712/62. Heading E1C. In a flushing cistern 1 of the kind having an valve 15 to control the filling thereof to a desired level, an outlet 3 extending down from the wall 2, and manually-operable control means 12 to initiate siphon discharge, the dischargecontrol means comprises a substantially vertical reciprocable tube 4 having a closed top end and an open lower end slidable in the outlet 3 with an aperture 7 above the water level when the tube 4 is in the normal raised position, but below the level when it is lowered, and a chamber around the tube 4 defined partly by a bellows 8 communicating with the cistern lower part through an opening 10, to that when the tube 4 is depressed for the aperture 7 to be below the water level, water flows through it to the outlet 3 to create siphonic action to drain the cistern 1 below the opening 10. Above the opening 10 may be an air inlet 17, controlled by a valve which is closed when the means 12 is operated to start siphonic action, and is held in the operated position, the cistern 1 being then drained below the opening 10, whereas when the means 12 is released after being operated to start the action but before completion, air enters the chamber through the inlet 17 to stop the action before it can enter it through the opening 10. The manual means 12 acts through a pin 5 on the top of the tube 4 to lower it. In a modification the tube 4 has a top air inlet, closed when lowered by a valve member on the pin 5, so that on then releasing the manual means, air can enter the tube from above to interrupt siphonic action.
Patent GB-373098-A (GB)
Title: Improved process of preparing pigments for use in compounding rubber and of vulcanizing rubber containing the same
IPC: C08K9/00
Filed: 1930-11-10
Abstract: A pigment such as carbon black, barytes, zinc oxide, &c. is freed from adsorbed gases before incorporation in a rubber mix. In an example carbon black is heated to 900 DEG  C. for ten minutes, or for a longer time to 100 or 200 DEG  C. in a limited supply of air or an inert atmosphere.  Results of tests showing the benefits conferred by the use of such degasefied fillers, such as, for example, decreasing the vulcanization time, are given.
Patent GB-1094325-A (GB)
Title: Improvements in or relating to circuit interrupters using sulphur hexafluoride
Inventor: GOZNA CLIVE FREDERICK
IPC: H01H33/02
Filed: 1965-08-06
Abstract: 1,094,325. Gas-blast switches. CENTRAL ELECTRICITY GENERATING BOARD. Nov. 1, 1966 [Aug. 6, 1965], No. 33823/65. Heading H2B. A circuit breaker using sulphur hexafluoride SF 6  as the arc quenching medium and having a nozzle 14 through which an arc is drawn, the nozzle being formed of or lined with boron nitride. A movable contact 13 co-operates with a resiliently mounted fixed contact 12. Boron nitride or a coating or lining of boron nitride is used generally for arc limiting devices and/or other electrically insulating structures exposed to arc breakdown products in SF 6  breakers.
Patent GB-1445772-A (GB)
Title: Process for silvering polyamides
IPC: D06M101/16
Filed: 1974-07-31
Abstract: 1445772 Silvering polyamides RHONEPOULENC-TEXTILE 31 July 1974 [1 Aug 1973]  33847/74 Heading C7F Polyamides are silvered by pre-treating with a reducing agent which is also a swelling agent and then treating with an ammoniacal silver nitrate solution. The swelling/reducing agent may be a polyphenol e.g. ortho diphenol (2, 2'-dihydroxydiphenyl), 1-4 diphenol (4, 4'dihydroxydiphenyl) or 1, 3, 5-trihydroxybenzene. The polyamide which may be in the form of fibres, filaments, yarns, flock films, woven fabrics, knitted fabrics or non-woven articles is immersed in a 1-30 wt. per cent aqueous solution of the polyphenol at up to 90C and after rinsing with distilled water it is treated with a 1-10 wt. per cent ammoniacal silver nitrate solution. The process is used to make textiles electrically conductive and to improve their antistatic properties.
Patent GB-1526497-A (GB)
Title: Process for the preparation of nitriles
IPC: B01J23/00
Filed: 1976-08-16
Abstract: 1526497 Nitriles SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 15 Aug 1977 [16 Aug 1976] 33970/76 Heading C2C Nitriles of the formula R<SP>2</SP>R<SP>3</SP>CH-CHR<SP>1</SP>C # N, wherein R<SP>1</SP> is an optionally substituted hydrocarbyl group or a hydrogen atom and R<SP>2</SP> and R<SP>3</SP> are optionally substituted hydrocarbyl groups or hydrogen atoms or R<SP>2</SP> and R<SP>3</SP> together complete a carbocyclic ring, are obtained by reacting nitriles of the formula R<SP>2</SP>R<SP>3</SP>C = CR<SP>1</SP>CN with alkanols and magnesium in the presence of ammonium salts.
Patent GB-202216-A (GB)
Title: Improvements in flexible couplings
IPC: F16D3/80
Filed: 1922-12-13
Abstract: 202,216. Munro, H. Dec. 13, 1922. Addition to 202,367. No Patent granted (Sealing fee not paid), Shaft couplings.-The shaft coupling described in the parent Specification is provided with a throttling and relief valve system mounted on the cylinders thereof. Fluid under pressure is admitted through a passage 6 provided with a non- return valve (not shown) to the curved cylinder 4 carried by one of the coupled shafts. The ram 5, secured to the other shaft, carries a tappet 42 adapted, when the cylinder is full, to contact with a piece 48 and move a valve spindle 43 to cut off the supply, wholly or partially, by its edge 45. If the supply is partially cut off, a discharge valve 46 is partly opened to balance the supply. Under an impulsive overload, additional fluid is discharged past the valve 46 and also through a spring-loaded relief valve 12. If the overload persists, the ram enters the cylinder, allowing a piston 47 or a spring 49 to close the valve 46, discharge taking place only through the valve 12 at a rate diminishing as the ram masks the ports 50. When the overload has passed, the cylinder refills through a passage 17 having a non-return valve 32. In a modification, the valve 12 and piston 47 are dispensed with, the spring 49 being stressed to allow the valve 46 to blow when the normal load is exceeded. In this form, the tappet 42 may contact with a piece 44 in place of the piece 48, so that it acts to reduce the spring load, the oil pressure then moving the spindle 43 wholly or partially to cut off the supply, and the valve being set to blow at the pressure corresponding to the load transmitted. If a protracted shock occurs, the parts 42, 44 disengage, and the full spring load is restored.