baber/WOPTO huggingface dataset:
Patent GB-1207132-A (GB)
Title: Device comprising a piston and cylinder
IPC: F02B3/06
Filed: 1967-10-18
Abstract: 1,207,132. Cylinders; pistons. PHILIPS GLOEILAMPENFABRIEKEN N.V. 18 Oct., 1967 [21 Oct., 1966], No. 47388/67. Heading F2T. In a hot gas engine or other device including a piston 2 reciprocable in a cylinder 1 and separating two spaces 6, 11, each containing a medium, the piston being sealed by two piston rings 12, 13, each housed with axial clearance in a groove 12a, 13a in the piston or cylinder, means, e.g. grooves 17, 18 in the rings, are provided to prevent full engagement between one side of each ring and the opposing wall of the groove so that the ring seals in one axial direction only, the directions being opposite for the two rings, and the cylinder or piston has at least one axial groove 21 therein dimensioned and positioned such that one ring 12 is bridged by the groove during a part of each stroke of the piston to communicate the space 20 between the rings with the space 6 adjacent the ring 12. The piston 2 and a displacer 3 are connected to a driving mechanism (not shown) and the space 6 communicates with a space 7 through a cooler 8, regenerator 9 and a heater 10. The space 11 is a buffer space. The pressures in the spaces 6, 11 and 20 are indicated by lines 15, 16 and 19 respectively in the indicator diagram shown in Fig. 2. Piston ring 12 allows leakage towards space 6 and piston ring 13 allows leakage towards space 11. When the piston reaches point M in its downward stroke, ring 12 passes ends 22 of grooves 21 and the pressures in spaces 6 and 20 are equalized and if such pressure is higher than that in space 11 flow will occur past ring 13; thus the pressure in space 11 is determined by the position of the ends 22. In a modification, Fig. 6 (not shown), the length of grooves (21) is relatively small so that the spaces 6 and 20 communicate with each other during a small part only of the working cycle. In a further modification, Figs. 7 and 8 (not shown), the grooves 17 and 18 are on the sides of the rings 12 and 13 facing the space 20. In further embodiments, the invention is incorporated in a cold-gas refrigerator, Figs 9-15 (not shown), and in a double-acting piston machine, Figs. 16-20 (not shown).
Patent GB-1529727-A (GB)
Title: Device for exerting a restoring force
IPC: G01D11/14
Filed: 1975-11-18
Abstract: 1529727 Electrical measuring instruments APPARATEBAU GAUTING GmbH 18 Nov 1975 [22 Nov 1974 13 May 1975] 47547/75 Heading G1U [Also in Division F2] A system for providing a restoring force on a member 3 comprises a conductor 4 providing at least least two portions such that electric current flows therethrough in opposite directions across a displacement path 6, and a magnetic circuit 1a, 1b providing at least two poles pairs along the path 6, adjacent pairs producing fluxes in opposite directions across the path 6. When current flows, the conductor 4 aligns such that the transverse portions produce fluxes in the same directions as the pole pair fluxes, any displacement of the member 3 carrying the conductor 4 is opposed by a restoring force between the two flux fields. The magnitude of the force being adjustable by varying the current. The system is described as being applied to electrical instruments to producing restoring forces or torques (Figs. 2-5 not shown) for indicating elements. In a further modification, a similar construction, Fig. 6 (not shown) has the conductor 4 connected to a resistive load to provide inductive damping.
Patent GB-1406004-A (GB)
Title: Apparatus for conveying hot glass
IPC: F16F7/01
Filed: 1973-10-16
Abstract: 1406004 Conveyer rolls in glass tempering apparatus LIBBEY-OWENS FORD CO 16 Oct 1973 48153/73 Heading C1M [Also in Divisions F2 and B8] Apparatus for tempering glass sheets 11, including means 12, 14, 9 defining a generally horizontal path of travel through successive heating and chilling areas 10, 15 and means 16, 18, 19 below the path in the chilling area 15 for directing a cooling medium against the sheets 11 is characterized in that the cylindrical rolls 9 for supporting and moving the sheets 11 through the chilling area 15 have hollow interiors and vibration dampening substance 23 inside the interiors. The apparatus also includes upper chilling means 17, 18, 20 and the preferred dampening substance is lead shot 23. A fibrous covering 21, secured as at 22, is also provided for the rolls 9 and is preferably of staple glass fibres in braided form. The dampening substance may be solid or liquid as well as particulate and may be loose or have restricted motion. The proportion may be variable, but the lead shot 23 is preferably 90% of the capacity of the interior.
Patent GB-1484625-A (GB)
Title: Television camera
IPC: H04N5/225
Filed: 1975-11-07
Abstract: 1484625 Television camera LINK ELECTRONICS Ltd 7 Nov 1975 [11 Nov 1974] 48705/74 Heading H4F A television camera comprises a rigid main frame 11 attached to camera support 1 and carrying the optical system 12 of the camera, and an auxiliary frame 13 carrying electronic circuitry of the camera which is hinged to the main frame 11 for movement between the open position as shown) in which the optical system 12 is readily accessible and a closed position in which it overlies and closely surrounds the optical system 12. The major part of the electronic circuitry comprises plug-in modules 14-16 slidably engaged in frame 13. The modules 14-15 are disposed in two subframes 17 (only one shown) of the frame 13 on each side of the camera. The sub-frames are hinged to frame 13 for movement between the closed position (shown) and the open position in which their rear parts are readily accessible for servicing. Side covers 2 and 3 of the camera are hinged to the main frame 11 (shown in the open position). Each cover incorporates a cue lamp 30 (only one shown). A view finder (5, Fig. 1, not shown) is mounted on an upper rear edge of frame 13 on brackets 19 and 20.
Patent GB-1334299-A (GB)
Title: Colour photographic silver halide materials
IPC: G03C7/34
Filed: 1971-10-20
Abstract: 1334299 Substituted naphthamides; substituted benzamides FUJI PHOTO FILM CO Ltd 20 Oct 1971 [20 Oct 1970] 48853/71 Heading C2C [Also in Division G2] 1 - Hydroxy - 2 - [N - 2 - {(2,4 - ditertiary amyl) phenoxy - acetylamino}phenyl] - naphthamide is prepared by adding dropwise half of a solution of 2,4-di-t-amylphenoxyacetic acid chloride in acetone to 1-hydroxy-2-[N-(2<SP>1</SP>-aminophenyl)]- naphthamide in acetone with ice cooling, adding triethylamine and then adding the rest of the acid chloride solution. 1-Hydroxy-4-chloro-2- [N - (2 - stearoylamino) phenyl] - naphthamide is prepared similarly. 1 - Hydroxy - 2 - [N - {2<SP>1</SP>- aminophenyl}] - naphthamide is prepared by shaking 1 - hydroxy - 2 - [N - {2<SP>1</SP> - nitrophenyl}]-naphthamide, pyridine and 10%- palladium carbon catalyst for 6 hours at 40 C. under hydrogen at 45 atmospheres. 1-Hydroxy- 2 - [N - {2<SP>1</SP> - nitrophenyl}] - naphthamide is prepared by heating to about 170 C. for 3 hours on an oil bath 1-hydroxy-2-naphthoic acid phenyl ester and o-nitroaniline and distilling off phenol under reduced pressure. 1-Hydroxy-2- [N - (3<SP>1</SP> - N - n - hexadecyl - carbamoyl) - phenyl] naphthamide is prepared by heating to 170- 180 C. for 3 hours on an oil bath under reduced pressure N - hexadecyl - 3 - aminobenzamide and 1 - hydroxy - 2 - naphthoic acid phenyl ester. 1 - Hydroxy - 2 - [N - (4<SP>1</SP> - n - hexadecylcarbamoyl) phenyl] - naphthamide, 1 - hydroxy-2- [N - (2<SP>1</SP> - methoxy - 5<SP>1</SP> - n - hexadecylcarbamoyl)- phenyl] naphthamide and 1-hydroxy - 2 - [N- (3<SP>1</SP> - methyl - 4<SP>1</SP> - stearoylamino) phenyl]- naphthamide are prepared similarly. N-hexadecyl-3-aminobenzamide is prepared by catalytically hydrogenating at 50 C. N-hexadecyl-3- nitro-benzamide in ethanol. N-hexadecyl-3- nitro-benzamide is prepared by reacting cetylamine with m-nitrobenzoyl chloride in the presence of triethylamine in acetone.
Patent GB-1477570-A (GB)
Title: Flow control apparatus for air filters
IPC: F24F3/16
Filed: 1975-11-28
Abstract: 1477570 Air filters FLANDERS FILTERS INC 28 Nov 1975 [5 Dec 1974] 49101/75 Heading B1T [Also in Divisions F2 and F4] An air filter element 49 capable of removing sub-micron sized particles has combined therewith a rectangular frame member 47 in which it is sealably disposed, the opening through the frame being closed, suitably on the downstream side of the filter element, by valve means 60 comprising a pair of rectangular plates of a size conforming to the outline of the frame and each having numerous apertures 56 therethrough, the apertures being distributed over the entire surface of the plates and corresponding in position and number on each plate, the plates being mounted for sliding movement relative each other so that the apertures in each may be brought into alignment to open the valve or taken out of alignment to close the valve and a film of non-evaporating viscous fluid, e.g. petrolatum or silicone grease, being interposed between opposing faces of the plates to prevent lateral flow of air between the plates. The filter elements may comprise pleated sheets of glass, ceramic or cellulose-asbestos. The frames 47 may be wood or pressed chipboard. A plurality of the filter element/frame/valve units may be mounted in parallel in channel members 41, the channels being partially filled with a fluid to form a seal. A clean room is described comprising a false ceiling formed from a bank of the filter element/valve units mounted in the channel members 41, the channel members being sealed to the room walls at the periphery of the filter bank. The space above the false ceiling provides an inlet plenum for gas to be filtered fed in via a blower from a bank of coarse pre-filters mounted behind a wall of the room and filtering air circulating from grills in the room floor. The valve means for each filter element are arranged to be individually operatable from within the room.
Patent GB-1024165-A (GB)
Title: Improvements in or relating to adjustment means for positioning two relatively movable parts
Inventor: PEVELER FRANCE DEARL
IPC: E02F5/32
Filed: 1963-12-13
Abstract: 1,024,165. Scarifiers. H. & L. TOOTH CO. Dec. 13, 1963, No. 49453/63. Heading E1G. [Also in Division F2] Adjustment of a first member relative to a second member is by rotation of an eccentric 60 on one of the members, engaging in an elongated slot 80 in the other member. As shown, a shank A carrying a ripper tooth is supported by a pin 52 between spaced vertical cheeks 51 of a clevis D pivoted by a vertical pin 50 to a horizontal beam E carried transversely on the rear of a track laying vehicle provided with means for raising and lowering said beam. The eccentric 60 is keyed by flats 62 to a shaft 70, bearing in aligned bores 55 in the upper parts of the clevis cheeks 51, and having an operating lever 71. Fig. 4 shows one extreme position of the eccentric 60, in which it bears against a 180 degrees seating surface 82 of the slot 80. Rotation through 90 degrees anticlockwise (Fig. 4) brings the eccentric into bearing contact with a second 180 degrees seating surface 81 of the slot, the shank A being pivoted through about 2 degrees about the pin 52. A further 90 degrees rotation of the eccentric brings it to the other extreme position, bearing against seating 82 once more, the shank being pivoted through a further 2 degrees. A pin (not shown) engaging with one of a pair of mutually perpendicular bores through the shaft 70 and with a bore in a locking bar 75, whose spigot 77 engages a further bore 55, locks the shaft 70 in one of the three positions. Several sets of bores 55 may be provided in the clevis cheeks 51, all at the same radius from the pin 52.
Patent GB-1219140-A (GB)
Title: A tractor-hauled machine or drill for distributinh solid or liquid materials
IPC: G05G5/04
Filed: 1968-10-22
Abstract: 1,219,140. Distributers for solid or liquid materials. AMAZONENWERKE H. DREYER. 22 Oct., 1968 [4 Nov., 1967], No. 49965/68. Heading A1D. Apparatus such as a drill 2 for the discharge of solid or liquid materials comprises a material reservoir 3, a distributing device 4 having openings for supply of material to the ground and an adjusting device including a measuring device such as a calibrated cylinder 15 connectable to at least one opening of device 4, e.g. tube 14, and including at least one material flow regulating member such as a lever 18, Fig. 2, optionally and retainably engageable with at least two stops 25, 25<SP>1</SP>.
Patent GB-1243352-A (GB)
Title: Filter
IPC: B01D53/02
Filed: 1968-10-22
Abstract: 1,243,352. Purifying air. COLLO RHEINCOLLODIUM KOLN G.m.b.H. WERK HERSEL. 22 Oct., 1969 [20 Nov., 1967], No. 50134/68. Heading A5G. [Also in Division B1] A filter for the removal of gases and vapours from air, especially for deodorising air, by adsorption and chemical reaction comprises porous carrier material containing a catalytically-active redox system which is connected to the carrier material by means of adhesive. The porous carrier material may be a fibrous material made from inorganic fibres, for example glass wool or slag wool or metal fibres or shavings, or from natural or synthetic organic fibres; the fibrous material may be in the form of an agglomerate, a fabric, a felt, a fleece or a textile. Alternatively, the porous carrrier material may be a hollow body material, for example a lattice foam material. The redox system may be an inorganic redox system comprising oxides of polyvalent metals, for example copper, silver, manganese, iron and cobalt, or an organic redox system comprising enzymes. The adhesive may be polyvinyl alcohol or an ester thereof, for example polyvinyl acetate or polyvinyl propionate, a polyvinyl ether, a polyurethane, a derivative of a polymer or copolymer of acrylic acid or methacrylic acid, cellulose or a derivative thereof, starch or a derivative thereof, or collagen. The filter additionally may comprise at least one filler material, for example pumice, chalk, bentonite, activated charcoal, polyurethane granulate or organic cotton linters, and/or a sensitiser, for example thorium dioxide, and/or a promoter, for example ammonium vanadate, and/ or an impregnating agent for improving the moisture retaining powers thereof, which agent may comprise a polyhydric alcohol, for example glycerol, glycol or a polyglycol, either an alkali, for example an alkali metal hydroxide or alkali metal carbonate, or an acid, for example boric acid or a hydrogen phosphate, and optionally a non-ionic wetting agent. The filter may be in the form of a mat or strip having a thickness of between 5 and 50mm. According to Example 1, a filter comprises a fibrous fleece (thickness of 5mm and weight of about 200 g/m<SP>2</SP>) which contains manganese dioxide, cobalt, oxide, methyl cellulose, bentonite and, optionally, ammonium vanadate and which optionally has been impregnated with a solution of sodium dihydrogen phosphate or of boric acid and  with an aqueous composition comprising glycerol, sodium carbonate and non-ionic wetting agent; according to Example 2, a filter comprises a fibrous fleece which contains manganese dioxide, copper oxide, polyvinyl acetate, bentonite and thorium dioxide and which optionally has been impregnated with an aqueous composition comprising glycerol, boric acid and non-ionic wetting agent. Reference is made to Specification 1,060,396.
Patent GB-1087329-A (GB)
Title: Novel diaryl compounds and methods of preparing same
IPC: C07D209/48
Filed: 1964-12-10
Abstract: Grease thickeners for mineral oil and silicone base greases have the formulae <FORM:1087329/C4-C5/1> (I) <FORM:1087329/C4-C5/2> (II) wherein R is H, alkyl or aryl, X is C=O, CHOH or CH2, and the ring-substituents in II are in the 3,4-positions.ALSO:The invention comprises compounds of formulae <FORM:1087329/C2/1> <FORM:1087329/C2/2> <FORM:1087329/C2/3> wherein R is H, alkyl or aryl, X is C = O, CHOH or CH2, and the ring-substituents in II are in the 3,4 positions.  The compounds may be made by reacting the corresponding tetracarboxylic acid, or its anhydride with R2NH to give the salt or diamide dicarboxylic acid, either of which may be heated to give the diimide, which reacts with further R2NH to give the tetraamide.
Patent GB-1443473-A (GB)
Title: Indicating instruments such as clocks for installation in  motor vehicles
IPC: C08F2/44
Filed: 1973-10-29
Abstract: 1443473 Styrene polymer compositions CANON KK and DENKI KAGAKU KOGYO KK 29 Oct 1973 [30 Oct 1972] 50243/73 Heading C3P [Also in Division G2] Compositions comprising (1) 30 to 85 weight per cent of a styrene homopolymer or copolymer, (2) 5 to 68 weight per cent of a chlorinated paraffin containing at least 30 weight per cent of chlorine and (3) 2 to 24 weight per cent of one or more aromatic compounds of formulae wherein P and Q are alkylene, R, S and T are H or alkyl and l, m and n are integers; may be prepared by mixing and kneading the components; or by mixing (2) and (3) with the monomer(s) of (1), dispersing the mixture water and polymerizing the monomer(s) in the presence of free radical initiators and dispersing agents. The styrene may be copolymerized with an alkyl- or halostyrene, vinyl naphthalene, acrylonitrile, methacrylonitrile, butadiene, chloroprene, vinyl or vinylidene chloride or an acrylic, methacrylic or itaconic acid ester. The products may be used in inks and paints, or mixed with carriers as electrophotographic toners, and as rubber tackifiers. Examples describe the preparation of compositions by mixing chlorinated paraffin with polystyrene and (1) diphenylbutane and (3) diphenylhexane, 4-n-butyl diphenylethane, 4,4<SP>1</SP>- diethyl diphenylethane, 4,4<SP>1</SP>-dimethyl diphenylpropane, diphenylbutane, 4-n-butyl diphenylbutane, p-diphenylethyl benzene and mdiphenylethyl benzene; and with (2) styrene/ acrylonitrile copolymer and p-diphenylethyl benzene, and by dispersion polymerization of styrene in the presence of chlorinated paraffin and (4) diphenylbutane, (7) p-diphenylethyl benzene and (8) 3,5-bis-(α-methylbenzyl) toluene; of (5) styrene/acrylonitrile/methyl methacrylate mixture in the presence of chlorinated paraffin and 3,5-bis-(m-tolylethyl) toluene and of (6) styrene/α-methylstyrene mixture in the presence of chlorinated paraffin and 4,41-dimethyl diphenylpropane. The products of dispersion polymerization are said to contain graft polymers on the chlorinated paraffin.
Patent GB-1174836-A (GB)
Title: Improvements in or relating to the Manufacture of Curved Grid Facets, such as for an aerial
IPC: H01Q15/14
Filed: 1967-11-07
Abstract: 1,174,836. Metal laminates. AVIOLANDA MAATSCHAPPIJ VOOR VLIEGTUIGBOUW N.V. 7 Nov., 1967 [10 Nov., 1966], No. 50599/67. Heading B5N. [Also in Division H4] A curved grid component from which the grid surface of an aerial may be built up is made by pressing gauze 10 on to curved rigid frame 21 by means of curved compression mould 24, adhesion being produced by a thermosetting resin which is subsequently curved at elevated temperature, and the gauze having a higher coefficient of thermal expansion than the frame material and being prestressed under a tensile load which is maintained throughout the process. The gauze may be of stainless steel and the frame may comprise tubular sections of normal steel. As shown frame 21 provided with adhesive rests on supports 20 and a tension of 1À5-2 kg./mm<SP>2</SP> is applied to gauze 10 via clamps 7, 18 and weights 17. Mould 24 is then lowered, forcing gauze 10 into the desired configuration. After pressing, the assembly is wheeled into a furnace, e.g. at 72‹ C., to cure the adhesive.
Patent GB-507122-A (GB)
Abstract: 507,122. Photo - electric cathodes. ELECTRICAL RESEARCH PRODUCTS, Inc. June 23, 1938, No. 18627. Convention date, June 26, 1937. [Class 39 (i)] The cathode in a photo-cell is formed by diffusion of caesium or rubidium, lithium, potassium or sodium into a layer of silver sulphide formed on a silver backing by means of a glow discharge in an atmosphere of hydrogen sulphide. A number of cells 5-in each of which the anode 9, silver cathode plate 12 and caesium emitting pellet 14 are already mounted-are attached by the exhaust ring tubes 16 to a header 20, Fig. 2, which is connected to pumping apparatus comprising a liquid air trap 29, two McLeod gauges 30, 31, mercury vapour pump 32, mercury cut off 33 and vacuum pump connected to tube 34 ; an ionization manometer 40 is attached to the tube 20 and three gas supply vessels 35, 36, 37 to the pump side. An electric heater 25 comprising removable chimneys 27 is placed under the cells. The cells are evacuated, the liquid air trap being cooled with a mixture of solid carbon dioxide and a material known by the Registered Trade Mark as " Cellosolve " acetate. Oxygen from the vessel 35 is next admitted and an electric discharge passed to first oxidize the silver plate and then reduce it, by heating, to form a matte surface. The oxygen is evacuated and hydrogen sulphide is admitted from the vessel 36 ; the electric processing circuit is changed to give condenser discharges through the cells to form silver sulphide, excess gas being subsequently evacuated. The pellets 14-each carried by a copper ring 13-are now heated and the mixture of Ca2CrO4, Cr2O3 and A1 produces caesium vapour which diffuses on the glass envelope, a shield 15 preventing flow to the cathode plate. The heater, 25 which is used in various stages of the processing with or without the chimneys 27, is then employed to vaporize the caesium from the envelope on to the plate. Argon is subsequently admitted as a filling at a pressure of 5 x 10<-2> mm. of Hg. The silver surface may be formed on a backing of nickel or copper. As finished the cathode surface may contain in addition to the mixture of caesium. sulphide and metallic silver, some caesium alloyed or absorbed in free silver particles.
Patent GB-1395057-A (GB)
Title: Sweeping appliance
IPC: A47L11/32
Filed: 1972-11-03
Abstract: 1395057 Carpet and other sweepers LEIFHEIT INTERNATIONAL GUNTER LEIFHEIT GmbH 3 Nov 1972 [5 Nov 1971] 50838/72 Heading A4F In a sweeping appliance particularly for carpets, the or each base portion 15, 16 comprises an integrally moulded planar base part, a transverse wall 19 moulded in the plane of the base part being connected thereto by a flexible zone 24 between chamfered edges 26. Longitudinal walls 18 may be moulded in the upright configuration shown or in the plane of the base part when further zones 24 and edges 26 are included. Each base 15, 16 comprises a dust chamber in its functional configuration, a spring 22 engaging in wall recesses 27 to maintain the walls 18 upright and to bias the dust chamber to its closed position. Dust removal is facilitated by pivoting each chamber about an axle 20 behind which axle 20 a groove in the wall 19 engages so as to maintain wall 19 in its functional configuration. The compartments are positioned adjacent a roller brush 11 driven by wheels 13. Two forwardly disposed auxiliary brushes 12, driven by wheels 14, direct dirt toward the brush 11.