baber/WOPTO huggingface dataset:
Patent GB-782416-A (GB)
Title: Improvements in and relating to fluid controlling valves
Inventor: JARRETT CHARLES ROY
IPC: F16K31/524
Filed: 1955-04-04
Abstract: 782,416. Valves. SAUNDERS VALVE CO., Ltd. April 4, 1955, No. 12455/54. Class 135. A valve comprising a diaphragm obturator 15 urged on to its seat by pressure of the controlled fluid which has access to the back of the diaphragm through an aperture 18 is mechanically pushed off of its seat by a shouldered rod 34 which, in co-operation with a resilient washer 41, constitutes a second obturator controlling return flow from the main outlet 13 to an exhaust port 43, and the two obturators work in opposite phase. A cruciform tappet inter. posed between rod 34 and diaphragm 15 allows some lost-motion between the actuation of the two obturators. The upper part of rod 34 is packed by an 0-ring 45. The actuating lever 35 forms, with a link 36, a toggle device which, when the lever is thrown over until a shoulder 37 on the link abuts the end of a slot 38 in the lever, locks the valve with upper obturator closed and the diaphragm 15 open.
Patent GB-558605-A (GB)
Title: Method of preparing stencils
IPC: B41C1/14
Filed: 1942-09-04
Abstract: 558,605. Stencils etching. REDDIE, L. N: (Riese, H.). Sept. 4, 1942, No. 12540. [Class 100 (ii)] A sheet is converted into a stencil by pressing a sheet, e.g. of blotting paper or clay, saturated with a solvent for the material of the sheet to be converted, into contact with a master stencil laid upon the sheet. The etching is effected by the vapour from the saturated sheet. The sheet to be converted may be a sheet of cellulose derivative and the master stencil a sheet of metal or gelatine or a layer of etch resistant material on a silk gauze or fabric of hard fibre. An original stencil may be prepared by coating a sheet of cellolose derivative with an etching resist coating, removing parts of the coating to form the design and then etching the cellulose derivative by the application of a saturated sheet as described above
Patent GB-904358-A (GB)
Title: Improvements in or relating to a cutter arrangement
IPC: A01D34/83
Filed: 1959-04-14
Abstract: 904,358. Mowing machines. FRUIT PRODUCTION & STORAGE (LINGFIELD) Ltd., and ASTON, W. S. Dec. 30, 1959 [April 14, 1959], No. 12542/59. Class 6(3). An endless-belt mowing machine attachable to a tractor 4 comprises a flexible rubber V-belt 7 mounted on pulleys 1, 2 and provided with teeth 8 which project from the outer belt-surface. the teeth being attached to the belt by members 15 which are seated in recesses 9 in at least one of the pulley-engaging surfaces of the belt, the seating permitting travel of the belt around the pulleys without obstruction by the attachment members. The teeth have horizontal sharpened edges 12 and upturned rear edges 20 to deflect cutgrass upwardly. As shown in Fig. 3, the attachment members each comprise a U- shaped lug which is bent around the belt so that the top portion enters the recess 9 and the free end 16 enters a recess 18 in the opposite side of the belt. Bolts 19 may secure the assembly together. In a modification, Fig. 6 (not shown) each attachment lug passes around both pulley-engaging faces of the belt, which is therefore recessed on both faces. The belt is driven from the tractor through a gearbox 6 and a conveyer-belt 21 may be provided for diverting cuttings.
Patent GB-1086061-A (GB)
Title: Improvements in or relating to transport vehicles
Inventor: BOWMAN-SHAW GEORGE NEVILLE
IPC: B62D53/06
Filed: 1963-03-29
Abstract: 1,086,061. Transporting special loads. LANCERS MACHINERY Ltd. March 25, 1964 [March 29, 1963], No. 12568/63. Heading B7B. A vehicle which is backed to pick up a load 7 has one of its sides 2 hinged at 6 to the transverse member 3. When the load is lifted by means 9 supports 10 are introduced beneath it to support it during transit.
Patent GB-645130-A (GB)
Title: Improvements in or relating to processes of preparing thioxane derivatives and the improved compounds resulting therefrom
Filed: 1947-05-09
Abstract: Thioxane derivatives of the formula <FORM:0645130/IV (b)/1> are prepared by treating vinyl acetate with a thiosalicylic acid of the formula <FORM:0645130/IV (b)/2> where X is hydrogen, chlorine, methyl, nitro or methoxy and Y is hydrogen or methyl, in the presence of an acidic catalyst.  The latter may be an acid, e.g. nitric or acetic acid, an acid salt, e.g. sodium bisulphate, or a compound such as boron trifluoride or zinc chloride; mercuric acetate may also be present, as well as a polymerization inhibitor.  Specified thiosalicylic acids are chlorothiosalicylic, methylthiosalicylic, dimethylthiosalicylic, nitrothiosalicylic, methoxythiosalicylic and nitro methylthiosalicylic acids.  Reaction temperatures may range from room temperature to the boiling temperature, and increased pressure may be used.  The process is preferably carried out by refluxing in excess vinyl acetate.  Inert diluents may be used. In an example, thiosalicylic acid and excess vinyl acetate are refluxed in the presence of sulphuric acid, mercuric acetate and hydroquinone to give 2-methyl-4-keto-1 : 3-benzothioxane.  The Specification as open to inspection under Sect. 91 comprises also the use of bromothiosalicylic acid as a suitable starting-material.  This subject-matter does not appear in the Specification as accepted.
Patent GB-236899-A (GB)
Title: Improvements in and relating to gill bars
IPC: D01H5/14
Filed: 1925-05-15
Abstract: 236,899. Trigallez, H. [Firm of]. July 10, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Gill bars or fallers.-The bar a is formed with a longitudinal groove b and pierced with holes through which the pins d are inserted from the back. The pins are set by a templet comprising a bar with a series of correctly spaced conical holes to receive the points of the pins. To fix the pins the bar is dipped in solder up to a level reaching the groove.
Patent GB-214473-A (GB)
Title: Improvements in pressing seamless metal pipe connectors and the like
IPC: B21K1/14
Filed: 1923-05-11
Abstract: 214,473. Rheinische Stahlwerke, Abt. R÷hrenwerke, and Thielmann, A. May 11, 1923. Pipes.-Pipe fittings are made from hot metal rod b by a die d which cuts off a blank and forces it into a matrix a and a punch f which then pierces it. One or more additional openings, according to the fitting required, are formed in the blank by using additional punches f<1>, f<2>, f<3>, Fig. 6. The work is removed from the matrix by an ejector h. The limiting stop c is either adjustable or reciprocated in order to clear the die d as shown in Fig. 4.
Patent GB-388255-A (GB)
Title: Improvements in means for shielding tubular apparatus in furnaces from radiant heat
IPC: F23M5/08
Filed: 1932-05-03
Abstract: 388,255. Radiant-heat shields in furnaces. STANDARD OIL DEVELOPMENT CO., Linden, New Jersey, U.S.A.- (Assignees of Potts, G.; 1061, Salem Avenue, Hillside, New Jersey, U.S.A.) May 3, 1932, No. 12777. Convention date, May 5, 1931. [Class 51 (i).] The tubes of stills, reaction chambers, and the like arranged in furnaces are shielded from the effects of radiant heat by non-tubular metallic elements spaced apart and arranged parallel with the tubes. In the furnace shown in the Figure, comprising tubes 2 arranged in a radiant heat section 3 and tubes 4 arranged in a chamber 5 which receives the hot gases of combustion, the upper row of tubes 4 which is exposed to radiant heat from the wall 7 is shielded by suspended I-beams 8 which may carry heat-insulating material. The beams are supported at their ends in such a manner that they may expand and contract. Insulated flat bars or V-shape bars may be employed as shields.
Patent GB-570148-A (GB)
Title: An improved lather-forming device
IPC: A45D27/12
Filed: 1943-08-09
Abstract: 570,148. Foam-producing devices. THOMAS, H. E. Aug. 9, 1943, No. 12862. [Class 86] A lather or foam is formed on water in a washing bowl or other container by a device comprising a canister 1 into the lower end of which, by detaching the perforated lid 2, soap may be placed. A flexible piston 3 of rubber or other material with perforations therein is reciprocable in the canister by a handle 6 which has a stop 9 thereon to limit the forward movement of the piston. In operation, the device is partially immersed in the water, and the piston reciprocated to draw water through the canister and over the soap past the piston and out through openings 11 in the upper end of the canister, which deflect the water back to the bowl. The canister may be corrugated, in which case the piston may be circular and need not be perforated. Alternatively, the handle 6 mav have a helix thereon to ensure rotation during reciprocation and paddle devices may be attached to the plunger portion.
Patent GB-988669-A (GB)
Title: Dense faced laminated structure
Inventor: STEPHENS JOSEPH FRANCIS
IPC: E04C2/16
Filed: 1964-03-26
Abstract: 988,669. Laminates and laminating. GUSTIN-BACON MANUFACTURING CO. March 26, 1964, No. 12873/64. Heading B5N. A laminated insulation panel, for example for making suspended ceilings, comprises a body 22 of glass fibres of average diameter 10 microns bonded together with a cured thermosetting binder and one or more substantially denser skins 23 of similarly bonded fibres of average diameter 5 microns. The skin or skins may be impressed with a pattern 24. The density of the body 22 may be from to 3 Ibs./cu. ft., and that of the skin or skins 23 10-20 1bs./cu. ft. The binding agents used may be phenol-, melamine-, urea-, or melamine/urea-formaldehyde resins. The panels may be made by hotpressing between platens a precured layer having on one or both sides an uncured skin layer, the latter being patterned if desired by interposing a profiled aluminium or other plate. Alternatively, continuous webs of cured and uncured fibrous material may be superposed and passed through a curing oven between endless conveyers the vertical spacing of which is chosen to produce the desired pressure on the skin layer or layers during curing. The panel may comprise a number of high and low density layers alternately arranged. For ceiling panels the surface patterning may include ribs so located as to form a regular rectangular pattern with the T-bar suspension elements. Specification 777,823 is referred to.
Patent GB-555437-A (GB)
Title: Improved method of centrifugally casting steel articles and articles produced by such method
IPC: B22D13/02
Filed: 1942-09-12
Abstract: 555,437. Steel alloys; annealing. FORD MOTOR CO., Ltd., Sept. 12, 1942, No. 12889. Convention date, Nov. 21, 1941. Drawings to Specification. [Classes 72 and 82 (i)] [Also in Groups XXII and XXVI] An engine cylinder is made from a casting of steel containing 0.35-0.45 per cent. of carbon. 0.60-0.90 of manganese. 0.80-1.10 of chromium. and 0.15-0.25 of molybdenum and the casting is normalized at 1700-1750‹F., kept at 1550‹F. for 1 hour. quenched in oil, heated to 1050‹-1100‹F. for 2 hours, and then gradually raised in. temperature until the hardness is 285-321 Brinell.
Patent GB-824226-A (GB)
Title: Improvements relating to acrylonitrile polymers
IPC: C08F220/44
Filed: 1955-10-18
Abstract: Cross-linked polymeric acrylonitrile soluble in solvents for polyacrylonitrile, e.g. ethylene carbonate and dimethyl formamide, acetamide and sulphoxide, comprises at least 85 mols. per cent of acrylonitrile and from 0-15 mols. per cent of another monoethylenically unsaturated monomer cross-linked by up to 0.06 mols. per cent of a cross-linking agent, the mols. per cent referring to the total number of structural monomeric units in the polymer. Monoethylenic monomers specified are acrylic and methacrylic acids and their esters, e.g. methyl acrylate, acrylamide, methacrylamide, methacrylonitrile, vinyl and vinylidene chlorides and vinyl acetate. The cross-linked polymeric material may be made by polymerizing in solution or aqueous emulsion a mixture of at least 85 mols. per cent of acrylonitrile with up to 15 mols. per cent of a monoethylenic monomer and from 0.001 to 0.3 mols. per cent of a polyethylenic cross linking agent, e.g. methylene-bis-acrylamide, divinyl benzene, triacrylohexahydrotriazine, diallyl phthalate, diallyl maleate and ethylene glycol diacrylate.  In examples aqueous emulsion polymerization is carried out in the presence of sodium lauryl sulphate and a mixture of ammonium persulphate and sodium metabisulphite.  Alternatively acid or amine groups may be copolymerized into the polymer which are then reacted with a polyhydric compound, a polyvalent metal compound or a polybasic acid, for example an acrylonitrile-acrylic acid copolymer may be reacted with glycol or aluminium or magnesium sulphate.
Patent GB-638831-A (GB)
Title: Improvements in or relating to step-contact film-printing machine
Inventor: COOTE JACK HOWARD
IPC: G03B27/08
Filed: 1947-05-14
Abstract: 638,831. Printing kinematograph films. BRITISH TRICOLOUR PROCESSES, Ltd. May 14, 1947, No. 13001. [Class 98 (ii)] A continuous step-contact printing machine comprises a mounting and optical system to produce a parallel beam of light, a film gate in this beam and means for feeding film into the gate, a first rotatable shutter driven by an electric motor to interrupt the beam of light, a second rotatable shutter driven by an electric motor in synchronism with the first motor and mounted so that during rotation an apertured portion of both shutters permits passage of light, and means for varying in predetermined manner the phase relationship of the two motors so as to vary the time interval during which the light passes both shutters and is incident upon successive frames of film. Exposures may thus be varied without use of iris apertures, diffusers or resistances in the lighting circuit, devices which provide insufficient control in printing multilayer records through the film base for colour work. As shown in Fig. 2, the beam of light from optical system 20, 21 passes the first shutter 23 driven by motor 24 and is diverted by mirror 22 to pass the second shutter 26 driven by motor 28 and impinge on to printing plane 3. Intermittent film feeding mechanism at 10 is also driven by motor 28. Motor 24, which is arranged as follower to motor 28, has a rotatable stator connected to gear-wheel 25 by which its phase may be varied in respect to motor 28, whereby the exposure gap may be varied. The machine may be provided with a pre-setting device (Fig. 3, not shown) by which a pivoted pointer may be directed to a numeral corresponding to a desired aperture relationship between the two rotating shutters, which, however, does not become operative until tripped by action of an electromagnetic release effected by a notch or metal insert in the side of the moving film; thus various exposure intervals determined in advance of printing may be made operative during the continuous sequence of printing exposures.
Patent GB-585935-A (GB)
Title: Improvements relating to railway rail-joints
IPC: E01B11/50
Filed: 1944-07-07
Abstract: 585,935. Rail joints. SPALTI, J. July 7, 1944, No. 13049. Convention date, July 9, 1943. [Class 104, (ii)] In a fish-plate joint, the rail ends are buttwelded from the rail heads to the neutral axis of the whole joint and the fish-plates, which have a total cross-section equal to that of the rail, have two bearing lugs on the lower face and three on their upper face. In a supported joint, as shown, the rails 14, 14<1> have bevelled ends for a weld 10, at the bottom of which a hole 12 is drilled. The welding is facilitated by a leaf spring 11. The fish-plates 15 have lugs 19 on their upper faces and lugs 20 on their lower faces. A filling-plate 16 may be used, secured by the main rivets 17 and by additional rivets 18. In a suspended rail joint, the fish-plates have flanges extending between the sleepers 13, 131.
Patent GB-1297271-A (GB)
IPC: B42F1/00
Filed: 1970-03-18
Abstract: 1297271 Hand tool for bending MAX CO Ltd 18 March 1970 [24 March 1969(2)] 13108/70 Heading B3E [Also in Division F2] A clip applicator comprises a base 1 having a guide groove 2 adapted to receive a bar of U-shaped clips A, a cover 4 positioned over the bar of clips and a handle 10 provided with a press plate 12. To operate the applicator the force handle 10 is opened wide so that a clip pusher 7 can be pulled out from the cover 4 against the force of spring 9 and hooked on the end surface of the cover. The bar of clips is then inserted into the opening between the guide groove 2 and the cover 4 and the clip pusher 7 released from the cover so as to press the bar of clips against a plate 5. Sheets to be fastened are inserted in the direction of the arrow in Fig. 1 and the handle 10 pressed downwardly causing the press plate 12 to separate the end clip from the bar and fasten it around the sheets. In a second embodiment an indentation, into which the end clip of the bar can slip, is formed in the guide groove 2. In a third embodiment, see Fig. 7, the bar of clips is loaded in magazine 23 and the sheets to be fastened are inserted in the direction of the arrow so that when handle 25 is pushed, press plate 26 touches the bendable ends of the end clip on the bar to fasten it around the sheets.
Patent GB-131331-A (GB)
IPC: B64C1/00
Abstract: 131,331. La ChevardiÞre de la Grandville, H. J. L. M. de. July 20, 1917, [Convention date]. Framework.-In the manufacture of laminated wood structures, reinforcing - sheets of woven metal or partly metal fabrics, or of perforated metal, are interposed between the laminµ, and the superposed laminµ are simultaneously pressed together and moulded to the desired shape while in the dry state. Fig. 1 shows an example of a girder assembled in this way, but a strut for an aeroplane body is also illustrated, and the application to parts of aeroplanes is mentioned. The various structures may be impregnated with creosote or other preservative, and a fireproof coating may be applied to the surface.
Patent GB-436128-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/38
Filed: 1935-05-02
Abstract: 436,128. Condensers. SPORING, P. A., Lindsay Lodge, Park Road, Hampton Hill, Middlesex, and TELEGRAPH CONDENSER CO., Ltd., Wales Farm Road, North Acton, London. May 2, 1935, No. 13134. [Class 38 (ii)] To produce two branch capacities, which may be different or may be adapted to withstand different voltages, the two conducting sheets 1, 2, of a rolled condenser, are cut through at intervals and their cut edges separated so as to form relatively staggered gaps 5 .. 8 in the winding operation or separate strips similarly arranged are used to produce the same effect. By connecting leads to say A, B, C., two branch capacities from the lead A are formed, that to C being capable of withstanding a higher voltage than that to B. By interposing during winding, a further strip in the gap 6 for example, with an external lead, an additional capacity can be formed which will be connected only to A.
Patent GB-1038783-A (GB)
Title: Electronic computer
IPC: H03M1/00
Filed: 1963-01-30
Abstract: 1,038,783. Electric selective signalling. GENERAL DATA CORPORATION. Jan. 30, 1963 [Feb. 5, 1962], No. 13142/66. Divided out of 1,038,781. Heading G4H. A multiplier comprises a first digital-toanalogue converter 701, Fig. 1 (not shown), arranged to receive a first digital number A and a reference voltage and a second digitalto-analogue converter 704 receiving a second digital number B and, as reference voltage, the output 703 of the first converter so that the output of the second converter is the product of the two numbers. An analogue-to-digital converter 706 produces a corresponding digital number C. For dividing number C, Fig. 2 (not shown), by number A to obtain the result B, the number C is applied to converter 803 and the output compared with that from digital to analogue converter 802. The input to this converter is the product from multiplier 801 of A and the unknown B. The difference signal is applied to increase the output of amplifier 804. This is applied to analogue-to-digital converter 805, the output of which is applied as number B to multiplier A. The system achieves a balance when A x B = C. For multiplication one number may be divided into higher and lower parts and each part multiplied separately with the other number and the products added as described in Specification 1,038,782. The digitalto-analogue converters 701, 704 and the analogue-to-digital converter 706 are as described in the parent Specification.
Patent GB-1414263-A (GB)
Title: Bipolar and insulated gate field effect transistor circuits
IPC: G11C19/28
Filed: 1973-03-19
Abstract: 1414263 IGFET circuits WESTERN ELECTRIC CO Inc 19 March 1973 [22 March 1972] 13148/73 Heading H3T In a circuit including an input IGFET 15 having its drain connected to the base of a bipolar transistor 16, means 17 for applying bias to the bipolar transistor, means 12 for applying an input digital signal to the gate of IGFET 15 and means for deriving an output digital signal from the emitter of the bipolar transistor 16, an auxiliary IGFET 18 has its gate connected to the gate of the IGFET 15 its source connected to the bias applying means 17 and its drain connected to the emitter of the bipolar transistor 16, the emitter load impedance 20 of the bipolar transistor 16 is periodically altered and the circuit operates such that the auxiliary IGFET 18 provides a signal at its drain to increase the output digital signal for a predetermined condition of the input digital signal. As shown the circuit includes P-type enhancement IGFET and forms an interface inverter circuit between an IGFET shift register or logic circuit 12 and an IGFET logic circuit 13. Antiphase clock sources # 1  and # 2  are provided so that when clock source 23 is high and clock source 22 is low IGFET 21 is off and IGFET 20 is on. A low "0" output from the shift register 12 causes IGFETs 15 and 18 and bipolar transistor 16 to conduct so that the output capacitance C OUT  charges to a high level "1" output (27, Fig. 2, not shown). When the clock source 22 increases to a high level IGFET 20 turns off and the effect of the auxiliary IGFET 18 is to pull up the voltage output level. Now the clock source 23 falls to a low level and IGFET 21 conducts the output to charge the input capacitance C IN  of the logic circuit 13. A high "1" input to IGFET 15 from the output of the shift register 12 produces a low output across C OUT  and across C IN  when IGFET 21 subsequently conducts. An IGFET 24 provides a discharge resistor path for the base of the transistor 16 when IGFET 15 is non-conducting. The circuit may be in integrated form such that the drain region of IGFET 15 also constitutes the base region of the transistor 16.
Patent GB-167309-A (GB)
Title: Improvements in or relating to spikes and screws for rails
IPC: E01B9/06
Filed: 1920-05-12
Abstract: 167,309. Radelet, F., and Bonnet, E. May 12, 1920. Addition to 153,188. Spikes; wood-screws. - The spike and screw claimed in the parent Specification are provided with a surface n at the rear of the head to bear on the sleeper, teeth r, and a projection s adapted to engage the rail when the spike becomes displaced.