baber/WOPTO huggingface dataset:
Patent GB-1271956-A (GB)
Title: Epoxy resin cellular plastics materials and process for their manufacture
IPC: C08L63/00
Filed: 1969-07-21
Abstract: 1,271,956. Foamed, hardened epoxy resins. FARBWERKE HOECHST A.G. 21 July, 1969 [20 July, 1968], No. 36653/69. Headings C3B and C3C. A foamed, hardened epoxy resin is made by mixing an epoxy resin having 2-10 epoxy groups per molecule, a liquid and/or solid expanding agent, an amine hardener which comprises one or more aromatic polyamines each containing two or more primary amino groups, and an accelerator which comprises one or more polyphenolic compounds, at a temperature within the range of from 30‹ to 80‹ C., to foam and harden the epoxy resin. A pore regulator may be mixed with the epoxy resin, and may be a polysiloxane or a block copolymer of a polysiloxane and ethylene oxide. The hardener may additionally comprise a cycloaliphatic amine and/or an aliphatic amine. The polyphenolic compound may be a novolak. The aromatic polyamine may be a condensation product of aniline and formaldehyde having a molecular weight of 200 to 600. The epoxy resin may be the reaction product of 2,2-diphenylol propane with epichlorohydrin. The expanding agent may be 1,1,2-trifluoro-1,2,2-trichloroethane.
Patent GB-853469-A (GB)
Title: Improvements in or relating to valves for controlling fluid flow
IPC: F16K31/06
Filed: 1955-12-21
Abstract: 853,469. Valves. BAIRD & TATLOCK (LONDON) Ltd., MATTHEWS, A. I., [Representative of MATTHEWS, S. J.], CHAPMAN, D. R., DOBNEY, C. S., and MONK, P. R. Dec. 18, 1956 [Dec. 21, 1955], No. 36704/55. Class 135. In a diaphragm valve having a body 1 formed with two or more passageways 2, 3 each opening at one end into the flat base surface of a circular cavity 6 formed in a face of the body, a flexible diaphragm 8 is clamped by a ring 16 against the base of the cavity over an area surrounding the openings and is moved to connect and disconnect the openings by a rod 15 which forms the armature of an electromagnet 19. When the electromagnet is energized the armature is attracted to the polepiece 27 and opens the valve against the force of closure spring 30. In another embodiment (not shown), the electromagnet is omitted and fluid pressure acting through one of the openings on the underside of the diaphragm against the force of spring causes the valve to act as a safety valve ; adjustment of spring force being provided by screwed plug. Alternatively, the rod 15 may be fitted with a cam lever which when rotated acts on the top face of ring 16 to open the valve. The diaphragm is formed of a flexible impervious material bonded to a resilient material and a projection on this part is forced into an axial bore of a stud also having a diametred drilling and grub-screw attachment to the rod 15.
Patent GB-344389-A (GB)
Title: Improvements in and connected with moulding apparatus
IPC: B28B7/16
Filed: 1929-12-02
Abstract: 344,389. Blocks for building and lining shafts and tunnels. O'ROUHKE, J. F., 17, Battery Place, New York, U.S.A. Dec. 2, 1929, No. 36872. [Class 87 (i).] A curved block for erecting tunnels, conduits, and the like is provided with recesses a at the top and corresponding projections at the bottom. On the inner face it is provided with a screw threaded through hole c, an L-shaped hole b emerging about centrally of the base, and two truncated pyramidal holes d to facilitate lifting by the prongs of an erector. The outer and inner edges of the curved surfaces and one end of the blocks may be rebated. For rounding curves in the tunnel, the recesses a are made slightly wedge-shaped. Blocks B, C of special shape for the party all between two tunnels are shown in Fig. 13.
Patent GB-1118893-A (GB)
Title: Regenerative heat exchanger matrices
IPC: F28D19/04
Filed: 1966-08-18
Abstract: 1,118,893. Rotary thermal regenerators. GENERAL MOTORS CORP. 18 Aug., 1966 [1 Sept., 1965], No. 37026/66. Heading F4K. A rotary thermal regenerator comprises an annulus including end rings 70 (72, Fig. 6) joined by circumferentially-spaced radial stiffener plates 92, heat exchange packs of thin corrugated stainless steel plates arranged between the stiffener plates and divided by a series of seal plate assemblies, thin relative to the plates 92, extending radially inwards and outwards of the pack material to form seal edges, the radially outer edges of the seal plate assemblies being retained and held under tension by means within the end rings, and the radially inner edges of the seal plate assemblies being slotted to permit longitudinal expansion and contraction. Each sealing plate assembly comprises spacer plates 78 and 80, with facing and touching protrusions 82, 84 respectively, and having tongues 86 received in facing annular grooves 74 (76) in the end rings, and a stainless steel sealing plate 88 having apertures 90, each freely receiving a mating pair of the protrusions 82, 84. The heavy stiffener plates 92 extend into facing annular recesses 96, (98) in which also are located retaining segments 100, 102, (104, 106) which trap the outer flange 116 or (118) of an I-beam section 112 or (114) respectively. Tabs 126 on the sealing plate 88 are slotted into the I-beam sections, as at 124, and keys 130 and 132 passed through the aperture 128 so that the inner flanges 116A, (118A) and the webs of the I-beam sections act as cantilever supports for the sealing plate 88. Cuts 140 at one side of apertures 90 allow unrestricted expansion of the hot side of the sealing plate 88. In another embodiment (Figs. 1 to 5), the sealing plate consists of an outer sealing strip (18) of beryllium copper attached to an inner sealing plate (20) by a snap-fastener arrangement (52, 56) for quick removal. Each end of the outer strip (18) is provided with a pin (38) which bears against a cam surface (40) (Fig. 3), formed by slot (42) in the end ring (10 or 12), to hold the strip under tension.
Patent GB-538157-A (GB)
Title: Improvements relating to buttons or analogous fastening devices
IPC: A44B1/28
Filed: 1939-12-19
Abstract: 538,157. Upholstery; buttons. MONAHAN, W. C. Dec. 19, 1939, No. 37046/38. [Class 52 (iv)] [Also in Group VII] A fastening particularly adapted for use in tufting mattresses &c. and applicable also for wearing apparel comprises a head member 100, Figs. 1 and 4, through which a loop of twine 120 is threaded, adapted to be passed through an apertured member 110 and then turned through an angle to engage it with a recess in the top of the apertured member, projections 104, on the head member, occupying the aperture. The head member may be elliptical in shape, as shown in Fig. 6, and the members may have complementary ribs and grooves 113, 103, Fig. 1. These projections may provide resilient engagement to retain the parts in position of use. A cord 414, Fig. 8, may be accommodated in an enlarged bore 413 at the end of a curved slot 412 in the head member, or it may fit in a groove in the outer face of the head member and be gripped therein when the head member flexes in engaging with the other member. A flexible tape tie may be secured by adhesive in the head member. The head member may be placed in a recess in the tail or point of a tufting needle for passing it through a mattress and through an apertured member.
Patent GB-1033698-A (GB)
Title: Improvements in the photographic characteristics of silver halide emulsions
IPC: C07J71/00
Filed: 1964-09-11
Abstract: 1,033,698. Antifoggants. FERRANIA S.p.A. Sept. 11, 1964 [Sept. 16, 1963], No. 37182/64. Heading G2C. Fog is prevented in developed silver halide emulsions by development thereof in the presence of a compound of formula:- wherein R is a fur-z-yl,thiophen-z-yl or pyrrolz-yl group. The antifoggant may be present in the emulsion or developer baths for colour or black and white development.
Patent GB-1397629-A (GB)
Title: Method of introducing oxygen into a liquid to be clarified and a device for carrying the method into effect
IPC: B01F3/04
Filed: 1972-08-09
Abstract: 1397629 Aerating and circulating liquids J R KAELIN 9 Aug 1972 [13 Aug 1971] 37222/ 72 Heading B1C Apparatus for aerating liquid (e.g. in the activated sludge process) comprises an activation tank 1 in which at least one upper and one lower toroidal flow is generated, oxygen or an oxygen mixture being supplied to each individual flow. As shown in Fig. 1, the upper circulation is generated by a surface aerator 4 and the lower by blades 7 both carried on shaft 5; circulation is guided by rotatable deflectors 12, 13 on shaft 5, and by a stationary draft tube 8. Gas is supplied to the upper flow by the surface aerator and to the lower by a pipe 9. Liquid to be treated enters at 16 at the plane of separation of the two flows and leaves by an outer not depicted. The shaft 5 also carries a variable pitch propeller 11 to assist and regulate the entry of activated sludge from a pipe 10. In a modification, the surface aerator, and the guides 12, 13 with impellers 7, 11 may be separately driven, see Fig. 2 (not shown). In another embodiment, Fig. 3, there are three toroidal flows, the lower two being generated by a centrifugal impeller 18 in association with gas inlet pipes 19 and sludge reflux pipes 20.
Patent GB-1303143-A (GB)
IPC: H01M4/86
Filed: 1970-07-31
Abstract: 1303143 Fuel cells SIEMENS AG 31 July 1970 [1 Aug 1969] 37226/70 Heading H1B [Also in Division C1] An electrode (e.g. for a fuel cell) comprises a silver-containing tungsten carbide layer 10 in powder form supported on the electrolyte side by an asbestos paper cover layer 11 and on the gas side by a carbon mesh 12. Metal grids 13, e.g. perforated tantalum plate and P.V.C. and 14, e.g. perforated tantalum plate which may be gold plated may be used for further support. The silver-containing tungsten carbide may be applied by sedimentation to the asbestos paper cover layer preferably after pre-treatment of the carbide in the electrolyte by ultrasonics.
Patent GB-1108753-A (GB)
Title: Control system
IPC: G05B19/35
Filed: 1965-08-31
Abstract: 1,108,753. Correspondence control systems. DYNAMIC PRECISION CONTROLS CORPORATION. Aug. 31, 1965 [Sept. 3, 1964], No. 37240/65. Heading G1N. [Also in Division G3] In a positioning system for the cross-feed of a lathe 10, a lead-screw 14 is driven through a gear-box by a two phase motor 16. An extension of the screw 14 drives fire position transducers 21, 22, comprising resistance controlled oscillator, which repetitively, and in opposite senses, sweep through a frequency band, in dependence on position, within the range 1, 000 to 20, 000 cps. A coarse transducer 23 makes one sweep of the frequency band for the full travel of the screw 14 and its actual position signal is compared with a derived position command signal from a tape recorder 37 in a frequency comparator 76. The error signal energizes a motor 81 through a power amplifier 79 whereby a dead-zone switch 83 is engaged to select a rapid traverse gear of the gearbox 17 and energize a relay 62 whereby the quadrature winding of the motor 16 is energized in the appropriate direction from the supply 92 through a phase splitting circuit 91 and phase-sensitive switch 96. When the error signal from the comparator 76 is at a predetermined low value the drive of the motor is such that the switch 83 opens, so that the gear-box 17 changes to a low gear and the relay 62 releases to transfer positioning from the coarse transducer to the fine transducers. A segment switch 48, driven by the screw 14, through a bi-stable multi-vibrator 53 and interconnected switches 41, 42, 46, 47 selects the actual position signal from the appropriate fire transducers 21, 22 and an associated desired position command signal 43, 44 from the tape recorder 37. The selected signals are compared in a frequency comparator 36 to control a power amplifier supplying the quadrature winding of the motor 16 through the released relay 62.
Patent GB-944333-A (GB)
Title: Process and apparatus for the separation of hydrogen from gas mixtures
Inventor: ROSSET ARMAND JOHN DE
IPC: B01D53/22
Filed: 1960-10-31
Abstract: 944,333. Separating hydrogen by diffusion. UNIVERSAL OIL PRODUCTS CO. Oct. 31, 1960, No. 37272/60. Heading B1L. In the separation of hydrogen from gases by selective diffusion through a Group VIII metal membrane, the membrane is formed on opposite sides of a sintered metal matrix and hydrogen diffuses into said matrix and is withdrawn at a portion of the latter which is free from membrane. The matrix may be cylindrical in which case the membrane too is cylindrical and hydrogen is withdrawn axially, or it may be a flat plate bearing membrane on opposite sides and hydrogen being withdrawn peripherally. As shown in Fig. 3, a pipe 12 for the feed gas mixture containing hydrogen enters through shell 11 and the non-diffused components leave from pipe 13. A series of gas diffusion elements 14 in the form of horizontally disposed porous sintered metal matrixes 15 (which may be made from stainless steel, zinc powder, tin or copper dust, powdered nickel or cobalt) overlaid on all surfaces exposed to the feed gas mixture with a hydrogen-permeable Group VIII metal, or alloy thereof, membrane 16. Each plate or cylinder of porous matrix has an "open" end of matrix material free of membrane, through which the diffused hydrogen may flow into the manifolds 17 and 18 connected with hydrogen transfer pipes 19 and 20 respectively. The feed gas mixture may be charged to the apparatus at a temperature between 65 and 820 ‹C., preferably between 95 and 540 ‹C. The hydrogen partial pressure differential between the gas mixture surrounding each of the diffusion elements and the hydrogen pressure in the matrix on the downstream side of the membrane should be at least 0À68 atmospheres and may be as high as from 10 to several hundred atmospheres. Specification 833,837 is referred to.
Patent GB-1357383-A (GB)
Title: Composite sectionalized protective indicating-type fuse
IPC: H01H85/36
Filed: 1971-08-09
Abstract: 1357383 Fusible cut-outs WESTINGHOUSE ELECTRIC CORP 9 Aug 1971 [26 Aug 1970] 37281/71 Heading H2G A composite fuse 6 comprising high-and lowcurrent interrupting sections 6A and 6B respectively has the low-current section threadedly connected to the high-current section so that upon low-current interruption the low-current section 68 only requires replacement. The high current section comprises at least one fusible (spring silver) element 12 housed in a glass epoxy casing 8 which is filled with white sand 10 and has a ferrule 14, 16 at each end. Ferrules 14, 16 are respectively provided with tabs 14a, 16a for connection to the element 12, and threaded studs 14b, 16b. The low-current section 6B comprises a fibre-lined insulating tube 20 in which are located a contact terminal 24 which is screwed onto the stud 16b, a terminal 15 secured to a fuse link cable 32, and a Nichrome (Reg. Trade Mark) strain link and a tin-lead alloy fusible link connected in parallel between the terminals 24, 15. When the link 30 fuses it causes link 28 to fuse and thereby the release of the cable 32 under the action of a spring strap 3 (Fig. 1) which then takes up a position 34 to indicate that the fuse has blown. Other suitable forms of low-current section include an ejection spring and a boric acid lining of the insulating tube (Figs. 4 and 4A, not shown) to assist in the ejection of the cable upon fusion. A number of alternate forms (Figs. 8, 9, 12, not shown) for the fusible elements of the high-current section are also described. A particular high-current section, Figs. 10 and 11 (not shown), comprises a plurality of fusible elements (12) (Fig. 12, not shown) consisting of wires provided with a number of sections (27) of reduced diameter, supported in slots (33) provided in a supporting rod (18).
Patent GB-963906-A (GB)
Title: Under-water paint
IPC: C09D5/16
Filed: 1960-10-31
Abstract: A paint which can be applied under water and which will harden under water, comprises a filmforming material and an organic solvent therefore soluble in water to harden the film-forming material, said solvent being effective to dissolve in the water slowly enough to permit the film-forming material to form its film in a progressive and controlled manner.  The film-forming material may be chlorinated rubber with or without bitumeno.  The solvent may be a mixture of isopropyl acetate, methylene chloride and amyl acetate or xylene, methylene chloride and butanol. Toluene may be used with the water-soluble solvents.  Other substances which may be present in the paint are anticorrosive agents or pigments e.g. red lead, zinc chromate, white lead, lead cyanamide and zinc oxide, dimethyloctadecylammonium bentonite gel, dried linseed oil, oleylaminophosphate, aliphatic amines and diamines, chlorinated naphthalene, tricresyl phosphate and manganese drier.ALSO:A paint which can be applied under water and which will harden under water, comprises a film-forming material and an organic solvent therefor soluble in water to harden the film-forming material, said solvent being effective to dissolve in the water slowly enough to permit the film-forming material to form its film in a progressive and controlled manner.  The film-forming material may be chlorinated rubber with or without bitumen.  The solvent may be a mixture of isopropyl acetate, methylene chloride and amyl acetate or xylene, methylene chloride and butanol.  Toluene may be used with the water-soluble solvents.  Other substances which may be present in the paint are anticorrosive agents or pigments, e.g. red lead, zinc chromate, white lead, lead cyanamide and zinc oxide, dimethyloctadecylammonium bentonite gel, dried linseed oil, oleylaminophosphate, aliphatic amines and diamines, chlorinated naphthalene, tricresyl phosphate and manganese drier.ALSO:Ferrous and concrete surfaces, which have been mechanically cleaned are coated with a paint which can be applied under water and which will harden under water, comprising a film-forming material and an organic solvent therefor soluble in water to harden the film-forming material, said solvent being effective to dissolve in the water slowly enough to permit the film-forming material to form its film in a progressive and controlled manner. The film-forming material may be chlorinated rubber with or without bitumen.  The solvent may be a mixture of isopropyl acetate, methylene chloride and amyl acetate or xylene, methylene chloride and butanol.  Toluene may be used with the water-soluble solvents.  Other substances which may be present in the paint are anticorrosive agents or pigments, e.g. red lead, zinc chromate, white lead, lead cyanamide and zinc oxide, dimethyloctadcylammonium bentonite gel, dried linseed oil, oleylaminophosphate, aliphatic amines and diamines, chlorinated naphthalene, tricresyl phosphate and manganese drier.
Patent GB-1065321-A (GB)
Title: Improvements in or relating to tool changing apparatus
Inventor: ANTHONY MYRON LEE
IPC: B23Q3/155
Filed: 1963-09-23
Abstract: 1,065,321. Machine tools. SCULLYANTHONY CORPORATION. Sept. 23, 1963, No. 37359/63. Heading B3B. A machine tool comprises tool-changing means having first and second transfer members to grasp the flange 26 of a tool 16 simultaneously, the first member 40 being movable in one direction to a tool magazine 10 and the second 54 in another direction to the spindle 70. The member 40 is carried on a shuttle 30 having rollers 32 and moved to-and-from the magazine by a chain 36. The tools are held in the magazine by solenoid-operated latches 20 as in Specification 1,004,625. The magazine 10 may be stationary instead of rotatable and may be situated in another room of a building. The spindle 70 may be moved axially for tool transfer instead of the member 54, or the spindle and the transfer arm may move transversely. A plurality of shuttles may be provided and the member 54 may be stopped opposite a selected shuttle. Reference has been directed by the Comptroller to Specification 1,004,625.
Patent GB-848413-A (GB)
Title: Detergent sponge and its manufacturing process
IPC: A47L13/17
Filed: 1956-12-06
Abstract: A detergent sponge comprises a body of resiliently distortable substance, preferably polyurethane, having an alveolar structure extending uniformly throughout, in which at least part of the alveoles are entirely filled by a charge of water-soluble detergent, which may be in solid, liquid, pasty or powdered form; an alkyl sulphate is a suitable detergent.  The detergent may be introduced into the sponge body either by injection into the sponge under pressure by means of one or more atomizing nozzles in the vat containing the polyurethane immediately after formation and during the escape period of the gases which cause the formation of the alveoles, or by means of injection needles introduced into the sponge, the needles being preferably provided with two spacer plates on either side which are forced apart under the pressure of the injected detergent so creating a cavity.  When a pasty or powdered detergent is used, the central core may be surrounded by secondary cores throughout the entire sponge; when the charge is liquid the central cavity may be first treated with a silicone or a water soluble plastic material.
Patent GB-619746-A (GB)
Title: Improvements in or relating to means for coupling together pipes, tubular bodies andthe like
IPC: F16L19/14
Filed: 1946-12-24
Abstract: 619,746. Locknuts. LAMONT, B. N. R. Dec. 24, 1946, No. 37808. [Class 89 (i)] [Also in Group XXVIII] A pipe 5 is secured in a socket 3 by a nut screwing on to the socket and having at its outer end an internal flange or lip 4 inclined away from the outer end of the nut so that in abutting against the end face of the socket it is deformed radially inwards to deform and grip the pipe. The flange may have sharp edges or the edge contacting the pipe may be flat or rounded. The end face of the socket may be flat or conical and its bore may be tapered or partly tapered and partly cylindrical.
Patent GB-619789-A (GB)
Title: Improvements in speedometers
IPC: G01P1/08
Filed: 1946-12-24
Abstract: 619,789. Indicating-apparatus. FORD MOTOR CO., Ltd. Dec. 24, 1946, No. 37827. Convention date, Jan. 5. [Class 106 (iv)] A vehicle speedometer comprises a member angularly displaceable in proportion to vehicle speed, connected concentrically to a masking drum 10, having a light aperture 17 in its periphery, a source of illumination 13, and a light shield 12, within the masking drum, and a plurality of strips 14 of light-conducting material in face to face relationship, each strip having one end adjacent the periphery of the masking drum 10 and the other end adjacent and parallel to an indicating dial 16 and arranged so that rotation of the masking drum progressively exposes the ends of the lightconducting strips to illumination from the light source. A transparent coloured strip 18 may be placed between the outer ends of the strips 14 and the graduated dial 16, and a perforated or shuttered member 19 may be introduced to prevent strong sunlight from obscuring the indication.