baber/WOPTO huggingface dataset:
Patent GB-1052856-A (GB)
IPC: H01S5/024
Filed: 1965-10-13
Abstract: 1,052,856. Coating metals and gallium arsenide; semi-conductors. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 13, 1965 [Nov. 13, 1964], No.43343/65. Heading C7B and C7F. [Also in Division H1] Films of indium or tin or an alloy thereof are electroplated on to a member of resilient conductive material, such as molybdenum, copper, silver, or tungsten, and on to a body of semiconductor material, such as gallium arsenide, on which successive thin layers of gold and tin have previously been deposited by electroless plating and alloyed in. The two films are then pressed together to form a continuous single metallurgical phase.
Patent GB-1311411-A (GB)
Title: Chock
IPC: B60T3/00
Filed: 1971-09-17
Abstract: 1311411 Rendering road vehicle chocks conspicuous E KELLER J NR  [trading as SCHUHKELLER OHG] 17 Sept 1971 [15 Oct 1970] 43349/71 Heading E1G [Also in Division F2] A hollow plastics vehicle chock (see Division F2) may have reflectors (not shown) and/or battery-powered warning lights (not shown) on its rear surfaces 9, the battery being housed between internal webs 1, 1'. A movable tongue 4 in the ribbed inclined surface 2 is provided with depending ground-anchorage spikes 6.
Patent GB-936208-A (GB)
Title: Vehicle unloading or loading devices
IPC: B66C19/00
Filed: 1959-12-24
Abstract: 936,208. Overhead cranes on vehicles. DIESEL EQUIPMENT Ltd. Dec. 24, 1959 [Dec. 29, 1958], No. 43800/59. Class 78 (4). The platform A of a lorry is provided with rails 11 for a frame B which supports an extensible beam D, and a wheeled carriage E, which is movable along the beam, carries lifting mechanism for a fork lift cradle C. The cylinder of an hydraulic ram 28 is secured to the beam, and the piston of this ram carries a pulley 35 which engages a cable 37a secured at its ends to the beam and carriage, respectively. A similar oppositely acting ram and cable mechanism (not shown) is secured to the other side of the beam. Catches, which are selectively operable by a rod 50, are provided to lock the carriage to the beam and the beam to the frame B whereby the rams 28 can be used either to move the beam and carriage relative to the frame, or to traverse the carriage along the beam. The carriage is provided with auxiliary rollers 73 which engage fixed rails 71, 72 in the frame to permit the carriage to be moved beyond the inner end of the beam when it is extended beyond the side of the platform A. The cradle C is suspended on ropes 23, 27 which are connected to a pulley tackle system 22, 55 operated by a further hydraulic ram 51. The frame B is provided with a bracket 75, spring loaded rollers 10 and brake members 77 which immobilize the frame when it is supporting a load outside its wheel base. The tines 87 are detachably mounted on the cradle by pivots 86a (Fig. 9) which may be retracted into a tube 84 against the action of a spring 90 by a linkwork 91, and the heel of each tine is supported by an abutment 85 on the cradle. The beam may extend either laterally or longitudinally of the vehicle platform.
Patent GB-887662-A (GB)
Title: Semiconductor photosensitive device and method of assembling same
IPC: H01L29/02
Filed: 1959-12-24
Abstract: 887,662. Semi-conductor devices. TEXAS INSTRUMENTS Inc. Dec. 24, 1959 [Dec. 31, 1958], No. 43849/59. Class 37. A semi - conductor photo - diode has a lens formed at one end and its leads are brought out through metal tubes sealed through the envelope. Fig. 6 has a number of photo-diode elements to be inserted in the tubes. Each element (Fig. 7) consists of a wafer 10 of N- type section with diffused layers 21, 22 (Fig. 7), of P and N-type material on the top and one side face to form an NPN structure, and layers 41, 42 of nickel and gold. The edge of the unit is then bevelled as shown, exposing the junctions 10-21 and 21-22. Leads 71, 72 are soldered to the upper and lower surfaces and the exposed junctions are cleared by etching, the remaining surfaces being protected by the gold. An aqua regia etch then removes both nickel and gold plating and the device, when illuminated on face 53, is said to be insensitive to light direction because of the large area of N-type material penetrated by the light. A ceramic spacer is placed over the leads and the unit is inserted in a glass tube 101. Through the base of this tube are sealed metal tubes 102 through which the leads are brought to the interior. The end of the tube is then flameclosed to produce plano-convex lens 121. The photo-diode is adjusted to the focus of the lens or to any other desired position by means of a meter connected to the diodes, the metal tubes are crimped and the leads are soldered at 132. A photo-diode of the edge illuminated type may be used (Figs. 8, 8a, not shown).
Patent GB-1485125-A (GB)
Title: Cylindrical bearing and sealing device
IPC: F16J15/32
Filed: 1974-12-12
Abstract: 1485125 Sealing bearings PLESSEY CO Ltd 12 Dec 1974 [19 Sept 1973] 43876/73 Heading F2A A cylindrical bearing bush 2 of flexible material (e.g. PTFE) has an integral seal constituted by a lip 8 on one end of the bush which is urged towards the member supported in the bearing by, for example, an 0-ring 12. Shoulders 14, 16 may be provided on the outside of the bush to facilitate mounting.
Patent GB-441719-A (GB)
Abstract: 441,719. Folding casement windows. HOPE & SONS, Ltd., H., and MANTLE, P. A., Halford Works, Smethwick, Staffordshire. Sept. 27, 1934, No. 27706. [Class 20 (iii)] The edges of adjacent sections of folding - sliding casements which meet when closed are pivotally supported by slides on offset upper and lower tracks, said slides having ends which overlap when the sashes are closed so as to bring the pivots p, q into axial alignment. One of the slides m on the upper and lower track has a cranked and bent part s overlapping the adjacent slide. k and supporting the pivot p axially above the pivot of the second. Specification 417,955 is referred to.
Patent GB-1081519-A (GB)
Title: Food freezer and accelerated freezing process
IPC: A23L3/36
Filed: 1965-10-19
Abstract: 1,081,519. Freezing foodstuffs. LEWIS REFRIGERATION CO. Oct. 19, 1965 [March 1, 1965], No. 44231/65. Heading F4H. A method of freezing a food product slab comprises piercing the slab with heat-conductive prongs which are connected to heat-dissipating means and circulating a coolant over the latter. As shown, meat slabs S to be frozen are carried by a lower endless belt conveyer 2 through an insulated chamber 4 having a removable cover 5, and an upper conveyer 20 carries the piercing means which comprise prongs 33 projecting from one side of base-plates 23 and heat dissipating members 34 projecting from the other side of plates 23. The slabs S are initially moved upwardly towards the prongs, are penetrated thereby and are then moved horizontally while cooled air is circulated by fans 44 over members 34 and beneath the upper run of conveyer 2. The frozen slabs F are then stripped from the prongs by a stripper fork 47, 48 (Fig. 6, not shown) and are supplied to a discharge conveyer 3. As illustrated in Figs. 8 to 13 (not shown), the prongs 33 may be of square or circular cross-section and may have conical or single- or double-bevelled points while the members 34 may comprise posts each aligned with and of the same cross-section as a prong 33 or longitudinally spaced plate-like members each of which extends over substantially the entire width of the base-plate 23.
Patent GB-1089149-A (GB)
Title: Collapsible basket
IPC: A01K97/20
Filed: 1966-10-04
Abstract: In a collapsible wire mesh fish basket as claimed in Specification 1,068,142 one of the inwardly opening sprung doors at each end is formed of or has attached thereto material of sufficient buoyancy to float the basket.  As described, the upper door is made of hollow plastics material.
Patent GB-1277249-A (GB)
Title: Perforable stencil
IPC: B41N1/24
Filed: 1969-09-08
Abstract: 1277249 Coating plastics sheets with fibres A S KONTOR KEMI 8 Sept 1969 [6 Sept 1968] 44305/69 Heading B2E [Also in Divisions B5 and G2] A duplicating stencil comprises a plastics film, which may be perforated by heat, attached to a porous 'backing material, wherein the plastics film has a thickness of 0.001 to 0.009 mm., a specific volume mean heat less than 0.45 cal/OC. cm<SP>3</SP> and a crystallinity of at least 55% for a part of or the entire film, and the backing material is unaffected by the heat applied to perforate the film. The plastics film may be of orientated polypropylene or a laminate with one layer as specified above and another layer of a thermoplastic material having a crystallinity lower than 55%, e.g. a laminate of polypropylene with polystyrene, polyvinyl chloride or polyisobutylene. The porous backing material may be of Yoshino paper, fabric web or glass web. The stencil may be made by bonding the plastics film to the backing material by heating or by use of an adhesive, or plastics film may be charged electrostatically and fibres down over the charged film, the fibres being bonded to the film by the use of an adhesive.
Patent GB-1537128-A (GB)
Title: Polishing
IPC: C09G1/02
Filed: 1976-10-26
Abstract: 1537128 Abrasive composition INTERNATIONAL BUSINESS MACHINES CORP 26 Oct 1976 [5 Dec 1975] 44527/76 Heading C4V A polishing composition consists of an aqueous mixture of colloidal size (i.e. 1-500 millimicrons) silicon dioxide particles, a soluble alkali metal base and an oxidizing agent which is the sodium or potassium salt of a dihaloisocyanuric acid.
Patent GB-1006265-A (GB)
Title: Improvements in and relating to adjustable hydraulic shock absorbers
Inventor: WORDSWORTH JACK
IPC: F16F9/46
Filed: 1962-11-24
Abstract: 1,006,265. Hydraulic shock absorbers. ARMSTRONG PATENTS CO. Ltd. Oct. 14, 1963 [Nov. 24, 1962], No. 44533/62. Heading F2S. A telescopic hydraulic shock absorber in which a piston 16 is provided with an hydraulic damping valve assembly 52, 56 and a foot valve assembly 28 communicates with a reservoir 14 is formed in one of the valve assemblies with an adjustable by-pass conduit (Fig. 2). The setting of the by-pass conduit is effected by an electrically operated stepping mechanism which includes a driver member displaceable in discrete steps from one position to another position by a switch means which energizes the electrical circuit. In the construction shown in Fig. 2 a driven shaft 60 of the stepping mechanism is provided with a longitudinal bore 62 which communicates with a transverse bore 64. The inner part 30 of the foot valve assembly 28 is formed with a plurality of circularly spaced, radial ports 66 of successively different diameter such that on the displacement of the driven shaft 60, the transverse bore 64 is brought into alignment with each of the ports 66 in turn. The shaft 62 may be introduced transversely into the shock absorber (Fig. 3, not shown). In a modification (Fig. 4, not shown) the driven shaft is housed concentrically within the piston rod, a bore in the piston communicating with the longitudinal bore in the end of the driven shaft 60. The stepping mechanism includes a solenoid actuated pawl and ratchet means (Figs. 5, 6, not shown) and the switching means is described with reference to Fig. 7 (not shown). Reference has been directed by the Comptroller to Specification 942,328.
Patent GB-1437278-A (GB)
Title: Diapers
IPC: A61F13/494
Filed: 1974-10-17
Abstract: 1437278 Diapers COLGATE-PALMOLIVE CO 17 Oct 1974 [18 Oct 1973] 45089/74 Heading A5R A diaper 10 has front and back waistline portions 24, 26, a crotch region 30 therebetween, lateral margins 20, 22 extending be- .tween the waistline portions, a surface for contact with -the wearer, and a fold line A extending between the waistline portions approximately equidistant from the lateral margins, and the diaper is folded along this line A and the said surface joined to itself along a line extending towards the lateral margin. As shown this line of attachment 36 is in the form of a quadrant of a circle beginning tangentially to the fold line. The surface may be secured to itself by an adhesive and may be formed by an absorbent body 12 overlaying a water impervious plastics backing sheet 14. The absorbent body 12 may comprise a liner of liquid permeable non-woven fabric over a layer of absorbent material. The lateral margins are formed by flaps on the sheet 14 folded to overlap the body 12 to which they are heat sealed
Patent GB-1409737-A (GB)
Title: Through-hole plated printed circuits
IPC: H05K3/42
Filed: 1972-09-29
Abstract: 1409737 Printed circuits EXACTA CIRCUITS Ltd 28 Sept 1973 [29 Sept 1972] 45158/72 Heading H1R A substrate of GRP is coated on each exposed face with a first layer of copper, and a hole or holes extends through the substrate and incumbent layers. In fabrication of a through hole printed circuit two additional layers are plated over the copper and the wall of each hole; one being thin and electrolessly deposited and the other being thicker and electroplated on using the one as an electrode. The first layer and the additional layers may be of Cu. A layer of positive photo-resist is applied over the metal layers but not over the walls of the holes, and selectively illuminated round the holes over a photo-mask enabling the exposed portions to be developed and dissolved out, leaving the metallic layers selectively uncovered. A layer of Sn-Pb alloy or gold or other noble metal is electroplated on the exposed portions surrounding the holes and the walls thereof. The photoresist is again exposed over another mask to define and isolate the required tracks; the layers being etched out where unprotected by the photo-resist or Sn-Pb alloy to produce a through hole printed circuit with a Sn-Pb pad surrounding each hole. The remaining photoresist is then removed, and the boards are profiled, cleaned, and coated with epoxy solder resisting lacquer.
Patent GB-1495723-A (GB)
Title: Method for refining molten ferrous metal
IPC: C21C5/28
Filed: 1974-10-18
Abstract: 1495723 Refining ferrous melts C B MURTON 18 Oct 1974 [5 Nov 1973]  45235/74 Heading C7D A ferrous melt is refined by introducing O 2  to form an 02-rich zone into which are introduced one or more oxides of elements which are present in the melt and which it is desired to retain in the melt. The oxides being introduced for a time sufficient to give a refined product having the required elements in the desired composition. The oxides may be of Fe, C, Mn, Si, P, S, Cr, Ti, Mo, Ni, V, B, Nb, Cu or mixtures thereof. The oxides, in particulate form, may be added with the O 2 -stream, or separately, entrained in a carrier gas, i.e. inert gas (CO 2  or Ar) or compressed air. The O 2  stream and carrier gas may be added through concentric tuyeres, and may be blown from above the melt, from the side or below the melt. In an example, a melt in a basic oxygen furnace is top-blown with O 2  containing oxides of Si and Mn. To produce a plain carbon steel, iron oxide (e.g. millscale, furnace dust) only may be added.
Patent GB-1445866-A (GB)
Title: Sensitized sheets for pressure sensitive copying
IPC: B41M5/155
Filed: 1973-09-27
Abstract: 1445866 Compositions for copying systems SANKO CHEMICAL CO Ltd and KANZAKI PAPER MFG CO Ltd 27 Sept 1973 [27 Sept 1972] 45246/73 Headings C3P and C3R [Also in Divisions D1-D2] A sheet material for use in a pressure sensitive copying system comprises a sheet provided with a coating capable of producing a colour on contact with a chromogenic material, the coating comprisin gparticles comprising both (a) one or more aromatic carboxylic acids and/or polyvalent metal salts thereof and (b) one or more polymers selected from homo- and co-polymers of styrene, α-methyl styrene, vinyl chloride, vinyl acetate, acrylic and methacrylic esters, and cyclopentadiene copolymers of vinylidene chloride, acrylic acid, methacrylic acid, acrylonitrile, acrylamide, and allyl alcohol, polychloroprene, and condensation products of (a) m-xylene and formaldehyde, (b) diphenyl ether and formaldehyde, (c) diphenyl ether, mxylene, and formaldehyde, and (d) benzyl chloride. The particles may be obtained by pulverising a solid mixture or solid melt of the components (a) and (b); or by dissolving components (a) and (b) in an organic solvent, evaporating the latter, and pulverizing the resultant solid; or by liquefying components (a) and (b) by heating or dissolution in an organic solvent, dispersing the resultant liquid in water, removing any organic solvent, thereby obtaining water-dispersed particles. Alternatively, the acid or salt may be mixed with a vinyl monomer, polymerization initiator and regulator, and a suspension or emulsion polymerization in water may be effected to obtain the desired particles. In yet another method, an alkali metal or ammonium salt of the aromatic carboxylic acid may be added to an emulsion of the polymer, followed by addition of an acid or an aqueous solution of a polyvalent metal salt. A water-insoluble inorganic material such as an oxide, hydroxide, or carbonate of the polyvalent metal, or a mineral pigment, e.g. clay, kaolin, activated clay, zinc oxide, calcium carbonate, aluminium hydroxide, or an organic powder, e.g. powdered starch or cellulose or organic pigment may be incorporated into the particles. An aliphatic carboxylic acid and/or polyvalent metal salt thereof, may also be incorporated to improve the compatibility of components (a) and (b) and the colour-forming property. The particles may be applied to the sheet in the form of a suspension in a liquid medium comprising conventional solvents and optionally binders. The coating composition may contain water-insoluble inorganic materials of the type described above. Tin silicate, zinc silicate, barium sulphate, talc, and aluminium silicate are additionally specified. The coating composition may contain capsules enveloping colour former when making self-contained copying papers. Plasticizers may also be included in coating compositions of the organic solvent type. The sheet may be a paper of natural or synthetic fibres, or plastics film, and may be provided with a barrier coat of a natural or synthetic high M.W. polymer.
Patent GB-1410664-A (GB)
Title: Mine roof support assemblies
IPC: E21D23/00
Filed: 1972-10-02
Abstract: 1410664 Advancing mine roof supports GEWERKSCHAFT EISENHUTTE WESTFALIA 2 Oct 1972 [2 Oct 1971 13 April 1972] 45342/72 Heading E1P In a mine roof support assembly comprising hydraulic props 112 mounted between a floor sill 110 and a roof cap 111, the assembly is protected from goaf collapse .by a shield 118 consisting of two relatively pivotable posts connected to two sets of pivotal levers, the axes of one set of levers 120 being vertically offset relative to the axes of the other set of levers 121. The assembly is also provided with an articulated cantilever extension, an advancing jack 47, a support 42 for the conveyor and guide means extending between two adjacent assemblies for alignment purposes, see Fig. 2 (not shown). The levers 120 are connected to a common shaft which is displaceable as by means of a screw-type device or a hydraulic actuator 122' to adjust the angle of inclination of the props 112. For a support having modified lever arrangement and means for tilting the conveyor in order to adjust the cutting path of the associated plough. Figs. 2, 3 and 4 (not shown), should be referred to. In a further modification, see Fig. 5 (not shown) the support is provided with a trough support arrangement for the conveyor which may move relative thereto or be clamped thereon.
Patent GB-1331539-A (GB)
Title: Luminescent screens
IPC: H01J9/22
Filed: 1971-09-29
Abstract: 1331539 Luminescent screens PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Sept 1971 [2 Oct 1970] 45358/71 Heading HID A light-absorbing coating is provided on a colour television screen in the interstices of the phosphor areas by coating the screen with a photo-sensitive material which has a sticky surface when unexposed, this sticky property disappearing on exposure to radiation, exposing the screen three times through a shadow mask to expose areas of the surface on which phosphors will later be deposited, coating the sticky layers with a powder or suspension of the light absorbing material, and washing the latter off exposed areas. The three sets of phosphors are then deposited in known manner by photoconductive or by photo-resist processes. The photo-sensitive material may consist of " Cermifax " and disappears on firing after aluminizing the screen. The light-absorbing material may be graphite, MnO 2  or Fe 3 O 4 .
Patent GB-1499070-A (GB)
Title: Vascular prostheses
IPC: A61F2/24
Filed: 1974-12-23
Abstract: 1499070 Oxidised polyacrylonitrile cloth NATIONAL RESEARCH DEVELOPMENT CORP 23 Dec 1974 [28 Sept 1973] 45446/73 Heading DIP A cloth of oxidised polyacrylonitrile defines the surface of a vascular prosthesis which is to be exposed to blood. The woven cloth of acrylic fibres is oxidised at 220‹C for about two hours and shrinks by about 25%, producing a denser cloth than otherwise produced. The cloth is thus oxidised to shrink it upon a prosthesis e.g. a heart valve comprising a body including a substantially rigid annular base, and a movable base obturating member. The base is enveloped by the cloth, which is then oxidised.
Patent GB-967030-A (GB)
Title: Organotin derivatives of sulphosalicylic acid
IPC: C07F7/22
Filed: 1962-11-30
Abstract: The invention comprises trihydrocarbyl tin derivatives of sulphosalicylic acid of formula <FORM:0967030/C1/1> wherein a, b, x and y are 0 or 1. a+b=1, x+y=1 and R is a hydrocarbon radical. R is preferably an alkyl radical of less than 7C atoms e.g. n-propyl or n-butyl, or a phenyl radical, but other alkyl, aryl, alkenyl, alkynyl, aralkyl, alkaryl, cycloalkyl, cycloalkenyl and cycloalkynyl radicals are specified.  The sulphosalicylates specififically disclosed together with methods of preparation are the trin-propyl, trin-butyl, trin-octyl and triphenyl derivatives; bis(tri-n-butyltin) sulphosalicylate is also disclosed with a method of preparation.  Compounds of the above type may be made by mixing the appropriate sulphosalicylic acid with the equivalent quantity of (R3Sn)2O or R3SnOH and heating said mixture preferably in a diluent e.g. a liquid which forms an azeotrope with water, is a solvent for the product and has a boiling point of 110 DEG -200 DEG C. Suitable diluents are toluene, xylenes, decalin, cymenes, cumene, ethylbenzene, t-butylbenzene, di-n-butyl ether and amyl alcohol. Other solvents may be aliphatic and aromatic hydrocarbons, alcohols and ethers, benzene being exemplified as a suitable diluent-solvent. The reaction may be conducted under reflux until the theoretical amount of water is recovered and the diluent removed by distillation at reduced pressure.  The application of these compounds in bacteriostatic and fungicidal compositions is disclosed (see Division A5).ALSO:Bacteriostatic and fungicidal compositions contain compounds of formula <FORM:0967030/A5-A6/1> where a, b, x and y are each 0 or 1; a + b = 1 x + y = 1 and R is a hydrocarbon radical; which may contain an inert substituent. When R is an alkyl radical of less than 7 C atoms e.g. n-propyl or n-butyl, or a phenyl radical, the compound may be used together with an excess of an inert diluent.  Other radicals are also disclosed together with specific compounds and their method of preparation (see Division C2).  The effective levels of tributyl-, tripropyl- and bis (tri-n-butyl)-sulphosalicylates against specific organisms are tabulated.  Solutions of the compounds may be applied e.g. by spraying, to textiles or other surfaces which are to be rendered resistant to attack by micro-organisms.