baber/WOPTO huggingface dataset:
Patent GB-604695-A (GB)
Title: Improvements in or relating to resistance elements having positive temperature/resistance characteristics
IPC: H01B1/24
Filed: 1945-11-16
Abstract: 604,695. Non-metallic temperature-variable resistances. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and FRYDMAN, E. Nov. 16, 1945, No. 30726. [Class 37] Resistances having a pronounced positive temperature/resistance characteristic are made from a mixture of powdered graphite and polythene. The ingredients are mixed on calenders at about 150‹ C., the softening temperature of the polythene, and moulded, rolled, extruded, or otherwise formed to the required shape, when roughened conducting end caps are attached. Various applications to voltage and current control are described. The Provisional Specification describes a resistance in which the graphite is replaced by powdered iron. Specification 541,222 is referred to.
Patent GB-1384327-A (GB)
Title: Evaporators for refrigerators and method for their manufacture
IPC: F25B39/02
Filed: 1972-06-30
Abstract: 1384327 Refrigerating INDUSTRIE A ZANUSSI SpA 30 June 1972 [3 July 1971] 30872/72 Heading F4H  A method of connecting the refrigerant inlet or outlet tube 5 to the channels 4 formed in the freezer evaporator 2 of a two compartment refrigerator comprises cutting through one wall of a channel 4 and introducing coaxially thereinto one end of a tubular sleeve 7, over the other end of which the end portion 8 of the tube 5 is passed. The interstices 10, 11 between the cut, tube and sleeve are soldered as at 12 and insulation material 13 is foamed over the exterior of the evaporator.
Patent GB-732576-A (GB)
Title: Joint-making packing and method of manufacturing same
IPC: B32B15/08
Filed: 1952-12-05
Abstract: 732,576. Joint-making packing. REINZ DICHTUNGS-GES. Dec. 5, 1952 [Dec. 7, 1951], No. 30975/52. Drawings to Specification. Class 122 (3). A joint-making packing comprises a metal base and a packing mass, preferably on each side of the base, the mass/comprising binding agents and fillers, more especially an elastic binding agent such as rubber and/or artificial rubber and/or synthetic resin, and a filler containing or consisting of asbestos fibres, preferably a filler consisting of asbestos fibres and powdered mineral fibres, for example powdered asbestos, wherein the base has a compressibility of at least 7 per cent but not more than 25 per cent, and preferably not more than 15 per cent, and a resilience of at least 0.3 per cent, all based on the initial thickness of the base, and wherein the complete packing has a compressibility of more than 7 per cent, preferably 7 to 15 per cent, and a resilience of at least 0.5 per cent, preferably at least 0.6 per cent, all based on the initial thickness of the packing. The base, which preferably has an overall thickness of at least half that of the packing, may'be a steel sheet deformed to have resilience by forming, on one or both sides of the sheet, resilient protruberances, for example of semi-spherical shape, or resilient tongues; or the base may be a laminar structure formed by two such resiliently ,deformed steel sheets separated by a layer of the packing mass used for covering the base. The methods of assessing the specified compressibilities and resiliences are described in the Specification. Specification 720,400, [Group VIII], is referred to.
Patent GB-660028-A (GB)
Title: Improvements in or relating to photographic light sensitive layers
IPC: G03C1/04
Filed: 1948-11-30
Abstract: 660,028. Photographic emulsions. MASON & SONS, Ltd., E. N., and BAKER, T. T. Nov. 30, 1949 [Nov. 30, 1948], No. 31016/48. Class 98 (ii). A photographic emulsion is prepared by intimately mixing an aqueous-alcoholic solution of urea formaldehyde resin with a watersoluble cellulose derivative (e.g. methyl cellulose) or with " Tylose " (Registered Trade Mark), and adding thereto a light-sensitive silvo salt or other light-sensitive compound, the final coated emulsion being treated with an aqueous solution to dissolve out the methyl cellulose and leave a permeable emulsion. An aqueous solution of silver nitrate may be added to an aqueous solution of methyl cellulose containing potassium bromide, and the emulsion mixed with an aqueous solution of urea formaldehyde (a small proportion of ammonium chloride being added). According to the Provisional Specification, an aqueousmethanol-ethanol solution of urea-formaldehyde is mixed with aqueous ammonium chloride and then with aqueous silver nitrate to produce a silver chloride emulsion containing a slight excess of ammonium chloride.
Patent GB-1519986-A (GB)
Title: Sawing of lumber from logs or cant
IPC: B27B31/06
Filed: 1975-07-24
Abstract: 1519986 Sawing wood ACME TIMBER INDUSTRIES Ltd 24 July 1975 [30 July 1974 20 Dec 1974] 31018/75 Heading B5L In a method of sawing an elongate workpiece, particularly a bent or curved timber workpiece, the workpiece is orientated as it is presented to the saw or saws in dependence upon the configuration of one longitudinal side thereof so as to saw the workpiece longitudinally parallel to the said configuration. The yield of useful lengths of timber from a log is thereby improved. In one embodiment, Fig. 6, sensing means comprising a roller 25 arranged in contact with the edge 9 of the log 1 to be sawn co-operate with micro-switch or other electrical means 26 to control via regulator 28 the fluid pressure applied by line 29 to a ram (not shown) which actuates an orientating roller 6, the latter acting on the edge of the log to orientate it so that the saw cuts 12 are made parallel to the edge 9. Subsequent drying of the timber eliminates undesirable curvature of the sawn boards. In another embodiment, Fig. 1, in which the curved workpiece is fed by rolls 3 to reciprocating frame saws 2, being supported by rollers 16, a single orientating roller 6 mounted on an arm 7 and urged by fluid pressure ram 8 towards a pre-set stop 11 makes contact with the concave edge 9 of the workpiece in order to position the workpiece suitable as it passes through the saws for the saw cuts 12 to be made parallel to the edge 9. In this embodiment a counter pressure roller 13 may be employed, the roller 13 making contact with the opposite edge 14 of the workpiece at substantially lower pressure than roller 6. The workpiece 1 may be positioned initially by one or other of two fluted drive rollers 4a, 4b which can be brought selectively into contact with the underside of the workpiece. Alternatively sensing means acting on the edge of the workpiece may control the use of rollers 4a, 4b to provide the necessary orientation during sawing.
Patent GB-1112968-A (GB)
Title: Improvements in or relating to builders trestles
Inventor: ROGERS WILLIAM ALFRED
IPC: E04G1/34
Filed: 1965-07-22
Abstract: 1,112,968. Trestles. TUBECLAMPS Ltd. 7 Sept., 1966 [22 July, 1965], No. 31140/65. Heading E1S. A builder's trestle comprises a tubular frame 10, 11, 12 of rectangular form and a pair of feet 14 which are slidably and turnably mounted on the uprights 10 of the frame. Each foot 14 comprises a pair of diverging legs 16, 17 welded to a sleeve 15 and the sleeve is locked in adjusted position by a pin 20 passed through a hole 21 or a hole 23 in the sleeve and through holes 19 in the uprights 10. The holes 21, 23 in the sleeve are spaced ninety degrees apart so that the plane of the legs may be disposed at right angles or parallel to the plane of the frame 10, 11, 12. Parallel trestles may be connected together by bracing tubes secured to the ends of the lower cross members 12 by bolts engaging nuts permanently mounted in the ends of the lower cross members.
Patent GB-656913-A (GB)
Title: Improvements in or relating to compositions of matter suitable for sealing electrical devices
IPC: H01B3/44
Filed: 1948-12-02
Abstract: A composition for use in sealing insulated electrical conductors comprises polybutene, preferably polyisobutene, hydrogenated rosin and an amide wax.  The amide wax may be the condensate of a fatty acid and an alkyl amine, said condensate containing a long chain, monovalent aliphatic hydrocarbon radical or may be the product obtained by condensing two mols. of a long chain fatty acid amide, preferably stearamide, with one mol. of formaldehyde.  The first type of wax may be prepared by condensing a lower fatty acid such as acetic, propionic or butyric acid with an alkylamine containing between 12 and 20 carbon atoms, such as cetylamine, or by condensing a higher fatty acid such as stearic acid with an alkylene polyamine such as ethylene diamine, diethylene triamine or triethylenetetramine.  A preferred composition comprises from 50 to 94 per cent polybutene, from 5-30 per cent hydrogenated rosin and from 1 to 10 per cent, preferably 3 to 5 per cent, amide wax.  An antioxidant such as polymerized trimethyl-dihydroquinoline, or a filler such as clay or whiting, may be incorporated in the composition.
Patent GB-729248-A (GB)
Title: Billet piercing press
IPC: B21C31/00
Filed: 1952-12-10
Abstract: 729,248. Billet-piercing. HYDROPRESS Inc. Dec. 10, 1952 [Dec. 22, 1951], No. 31325/52. Class 83 (4). A hydraulically-operated billet-piercing press has an upsetting tool 31 carried by a cross-head 29, and a piercing tool 32 carried by a cross-head 23, both of said tools being initially connected together by hydraulic coupling rams 26, 28 and moved in unison by an hydraulic ram 22, operating in a main cylinder 21, so as to upset a billet in a container 34, the pressure liquid in the coupling rams being released when a predetermined pressure is reached in the main cylinder 21 whereby the upsetting tool is stopped whilst the piercing tool pierces the billet. The pressure liquid trapped in the cylinders 28 during the upsetting movement, is released by a valve controlled by an electric timer switch energised by the attainment of said predetermined pressure. A pre-filling valve in the main cylinder 21 allows the idle stroke of the ram 22 to be performed quickly, the pressure stroke being then effected by high-pressure liquid. At the beginning of the piercing movement the upsetting tool is raised slightly by hydraulic motors 44 to permit the billet metal to rise during the piercing. A back-up plunger 41 presses against the underside of the billet and is lowered when adjustable rods 63, acting on a cross-head 56 connected to the plunger, are engaged by the cross-head 23. When the ram 23 stops, the plunger 41 is lowered further to a position 43 by hydraulic cylinders 65. The cross-head 23 is raised by admitting pressure liquid to the cylinder 28 and the cross-head 29 is raised by the motors 44. The billet container 34 is mounted on a slidable carrier 37 which, after withdrawal of the piercing tool, is moved by an hydraulic motor to align the pierced billet with an ejector device 48, Fig. 2 (not shown), operated hydraulically. The piercing tool is subsequently cooled by lowering it into a vessel containing cooling fluid. An electrical-hydraulic control system is described.
Patent GB-1020413-A (GB)
Title: Improvements in and relating to manually guided humanly portable appliances for harvesting fruit from trees, bushes and the like
IPC: A01D46/26
Filed: 1964-08-04
Abstract: 1,020,413. Tree-shakers. H. WACKER, P. WACKER. Aug. 4, 1964 [Aug. 3, 1963], No. 31330/64. Heading A1F. A tree-shaker comprises a humanlyportable vibrator 1 equipped with detachable means 3 enabling it to be attached to the trunk or branch 5 of a tree. The detachable means may include a hook 4 and a harness 6 may be provided for attachment of the device to a human operator. In a modification (Fig. 2, not shown) the harness is replaced by a pulley and counterweight enabling the device to be suspended from the branch of a tree.
Patent GB-1165527-A (GB)
Title: Pressure Vessels
IPC: F16J13/02
Filed: 1968-07-02
Abstract: 1,165,527. Pressure vessel closures. SULZER BROS. Ltd. 2 July, 1968 [27 July, 1967], No. 31564/68. Heading F2P. The cover-plate 3 of a pressure vessel having a curved wall engages its rim at an interlocking mortise and tenon joint 10, 10<SP>1</SP> so that it can give the vessel wall radial support. The interengaging cylindrical surfaces of the joint 15, 15<SP>1</SP> and 16, 161 lie on proejctions (shown dashed) of the wall surfaces. The fixing bolts 8 lie on axes 20 at the centre of the cylindrical surfaces, and therefore at the centre of the wall thickness. There is an internal packing seal 14. The total cross-sectional area of the rim does not exceed eight times the square of the wall thickness B.
Patent GB-768737-A (GB)
Title: Improvements in devices for anchoring objects to concrete and other hard surfaces
Inventor: REGAN DONALD
IPC: B64F1/12
Filed: 1954-11-02
Abstract: 768,737. Anchoring aircraft. LEA BRIDGE INDUSTRIES, Ltd. Aug. 24, 1955 [Nov. 2, 1954], No. 31616/54. Class 4. A device for anchoring an aircraft to a concrete runway or similar surface comprises two laminations 1, 1 of flexible material such as natural or synthetic rubber or rubberized fabric which are stuck or sewn together and between which is sandwiched a plurality of webbing strips 2 which meet at the centre where they are gathered together and formed into an eye 4. The device is intended to be secured to the runway or other surface by an adhesive, the eye 4 serving as an attachment for a picketing rope.
Patent GB-316538-A (GB)
IPC: C09F5/06
Abstract: 316,538. Scheiber, J. July 30, 1928, [Convention date]. Esters.-The non-volatile residue obtained by distilling ricinoleic acid is esterified with glycerol or other alcohol. The residue may also he treated with the distillation product, 9.11 octadekadienecarboxylic acid, and esterification of both effected before or after mixing, to form a product resembling boiled wood oil. The products increase the elasticity of cellulose esters and are solvents and varnish bases. Specification 306,452 is referred to.
Patent GB-449224-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/44
Filed: 1935-11-15
Abstract: 449,224. Valve circuits for wireless reception. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Nov. 15, 1935, No. 31684. Convention date, July 12. [Class 40 (v)] An intermediate frequency is used which is at least five times the highest picture frequency in a television signal. Band-pass filters 8 ... 12 are used in the intermediate-frequency amplifier 4 ... 7 and to couple its output to a cathoderay tube 16. The coils A in the band-pass filters have high-frequency iron cores, and are damped by resistances R.
Patent GB-1191588-A (GB)
Title: Process for Dyeing Nitrogenous Fibres
IPC: D06P3/20
Filed: 1968-07-03
Abstract: 1,191,588. Dyeing natural nitrogenous fibrous material. CIBA Ltd. 3 July, 1968 [7 July, 1967], No. 31716/68. Heading D1B. Natural nitrogenous fibrous material especially wool is dyed in an acid to neutral bath at 70-85C with 1:2 metal complex dyes which contain no free acid groups imparting solubility in water in presence of a) a water-soluble salt or boric acid e.g. borax, b) an acid ester or its salt, of an at least dibasic oxygen acid and a polyglycol compound of an aliphatic compound containing 12-22 carbon atoms and at least one basic nitrogen atom chromium and cobalt complex dyes are preferably used and preferred sulphonic acid ester components, b) have formula I in which R is an aliphatic residue of 12-22 carbon atoms, m and s are each 1 or 2 p, q and r digits the sum p+q+r(m-i) being at least 2 and at most 30.
Patent GB-1399916-A (GB)
Title: Waste compactor
IPC: B30B9/30
Filed: 1972-07-06
Abstract: 1399916 Waste compactor INTERNATIONAL DYNETICS CORP 6 July 1972 [9 July 1971] 31740/72 Heading B8C A waste compactor comprises a tubular compaction chamber 20 of uniform cross-section along its length and having discharge and feed openings 16, 56 respectively at its leading and trailing ends, a shoot 28 communicating with the feed opening 56 for delivery of refuse thereto, a ram 34 longitudinally movable in said chamber between a first position to the rear of the feed opening and a second position forward of said feed opening to move refuse into, and along, the chamber forwardly to said discharge opening 16, the portion of the chamber located between said second position and said discharge opening having a plurality of elongated ribs 59 spaced from each other and each extending along the path of movement of the refuse and extending radially from the inner surface of said chamber toward the centre thereof by an amount sufficient to decrease the crosssectional area of said chamber and increase the surface area for contact by refuse between said second position and said discharge opening, whereby refuse is compacted on movement of the ram from the second position to said discharge opening. The ribs 54, which provide a compaction resistance to the flow of refuse along the chamber 54 and which are preferably of triangular rectangular shape, may be of rectangular, rounded, or other shape and they may be of spiral form and curved relative to the central axis of the chamber, the leading edges of the ribs being bevelled at 58. The chamber 20 comprises a cantilevered end of a tubular body 10 which has a feed section 22, which communicates with an inlet 28 of a shoot 30 having an electric eye 34, and which houses an hydraulic compaction unit 26 including a double-acting cylinder 36 and the ram 34. The latter carries a gate plate 42, which, in the forward position of the piston 34, blocks the inlet to the section 22 so that refuse from the shoot 30 collects upon it. When refuse on the gate plate 42 is sensed by the eye 34 the ram 34 is operated, each successive stroke of the latter pushing a quantity of refuse forward into the compaction chamber 20 so that the refuse is compacted axially, in disclike laminations, and is collected in a bag 60 which is shirred over the compaction chamber 20, is held by a pair of pivoted arms 64, and is secured by a chain 70. The latter is connected to a switch 72 connected to the control circuit of the ram 34. The bag 60 is adapted to be cut and tied at selected intervals on the discharge of refuse from the compactor. The degree of compaction of the refuse is dependent upon the length of the chamber 20 and the radial extent of the ribs 54.
Patent GB-1392601-A (GB)
Title: Blind-riveting assemblies
IPC: B21K1/44
Filed: 1971-07-07
Abstract: 1392601 Drills; making drills and rivets; blind riveting; forging dies USM CORP 6 July 1972 [7 July 1971] 31802/71 Addition to 1195246 Headings B3C B3A B3U and B3H [Also in Division F2] A self-drilling, blind-riveting assembly 11 comprises a tubular rivet and a mandrel 10, the latter having a drill end 20 of substantially elliptical cross-section with two flutes 22, 24, forming aligned cutting edges 28, 30 and 36, 38, which lie along the major axis of the ellipse and are of greater diameter than that of the tubular rivet. The mandrel is produced from a blank 74, which is swaged by dies 71, 72. (For Figures see next column.)
Patent GB-200760-A (GB)
Title: Improvements in or relating to the recovery of alkali thiosulphates from solutions
IPC: C01B17/64
Filed: 1922-11-21
Abstract: Liquors containing alkali thiosulphates and other less soluble alkali salts such as carbonates, which may be products of gas purifying processes such as those described in Specifications 169,996, 170,572, [both in Class 55 (ii), Gas manufacture &c.], and 209,169, are evaporated until the boiling-point reaches 120 DEG  C. at atmospheric pressure when the salts such as alkali carbonates separate and the crystals are removed in a centrifugal apparatus.  The solution is then cooled to obtain crystals of thiosulphate.  The mother-liquor may be further concentrated to obtain a second crop of thiosulphate crystals; the final mother-liquor contains sulphocyanides.ALSO:Liquors containing alkali thiosulphates and other less soluble alkali salts such as carbonates, which may be products of gas-purifying processes such as those described in Specifications 169,996 and 170,572, [both in Class 55 (ii), Gas manufacture &c.], and 209,169, are evaporated until the boiling point reaches 120 DEG C. at atmospheric pressure, when the salts such as alkali carbonates separate, and the crystals are received in a centrifugal apparatus. The solution is then cooled to obtain crystals of thiosulphate.  The mother liquor may be further concentrated to obtain a second crop of thiosulphate crystals; the final mother liquor contains sulphocyanides.  The thiosulphate crystals are washed and recrystallized, the mother liquor being returned to the evaporator.
Patent GB-1244842-A (GB)
Title: Building system
Inventor: CRITCHLOW KEITH BARRY
IPC: E04B1/32
Filed: 1967-07-11
Abstract: 1,244,842. Building. K. B. CRITCHLOW. 11 July, 1968 [11 July, 1967], No. 31896/67. Headings E1A and E1W. A building is made up from a plurality of panels which are shaped either all as rhombs of obtuse angle 109‹ 28' or a combination of at least two of the following shapes, rhombs of obtuse angle 109‹ 28' triangles, squares, hexagons and octagons, the edges of the panels, other than those which include ground engaging edges, being of the same length. The building so formed has the external shape of a close-packing solid in 4- fold symmetry or a section of such a solid e.g. truncated octahedron, as shown, made up of two "triangulated" hexagons 10, four "sectioned" "triangulated" hexagons 12, two squares 14 and two "triangulated" squares 16. Other structures are also described. The panels are formed from multi-layer corrugated cardboard or plastics material and are joined to each other by means of inwardly extending flanges which are fastened together by bolts, stapling or glueing. Door and window panels are also shown.
Patent GB-520300-A (GB)
Title: Improvements in or relating to prepayment gas meters
IPC: G07F15/00
Filed: 1938-11-04
Abstract: 520,300. Prepayment mechanism for gas meters. WILSON GAS METERS, Ltd., G., WILSON, J. H., and POOLE, C. E. Nov. 4, 1938, No. 31931. [Class 27] Quantity mechan. ism of rotary disc type.-The members of the valve of a prepayment gas meter comprise twc super-posed discs b c each provided with a port b<SP>2</SP>, c<SP>2</SP>. The disc b is rotated througt a definite angle by prepayment mechanism acting through a shaft g and worm gearing e, f, while the disc c, rotated by similar gearing from the meter mechanism, can turn indefinitely, and must move through the greater part of a revolution before leakage causes the valve to re-open. Thus leakage of gas past the valve after the ports b<SP>2</SP>, c<SP>2</SP> have passed coincidence and nominally shut off the supply will result in continued rotation of the disc c, insertion of a coin subsequent to such leakage will not bring the ports b<SP>2</SP>, c<SP>2</SP> into full coincidence, but will make allowance for said leakage, and if the latter has been considerable, may not bring the ports over one another at all, thus requiring a further coin.
Patent GB-887149-A (GB)
Title: Automatic control of electrically driven winches
Inventor: HARTL ERNST
IPC: B66C13/24
Filed: 1958-10-07
Abstract: 887,149. Automatic tension-control systems. INSTITUT FUR SCHIFFBAU ROSTOCK. Oct. 7, 1958, No. 31958/58. Class 38 (4). The tension in a touring cable 2 is detected by a roller 1 biased by a spring 2. Movement of the roller, through a rack and pinion, rotates a transmitter 6, electrically connected to a tension indicator on a controller 8, and rotates a transmitter 3 controlling the energization of a Ward-Leonard generator 5. Variation in cable tension is corrected by the generator 5 varying the supply to a motor 4 which drives a winch-drum 9 so as to take in or pay out cable. The output voltage of the generator is zero when the cable tension is at a desired value. A transmitter 7 mechanically coupled to the winch drum is electrically connected to a cable length indicator 15 having a limit contact for interrupting the supply to the transmitter 3 to prevent further cable being paid out.