baber/WOPTO huggingface dataset:
Patent GB-1326445-A (GB)
Title: Coupling arrangements for cylindrical articles
IPC: F16L19/02
Filed: 1970-11-05
Abstract: 1326445 Pipe couplings; pipe stoppers SGE RESEARCH PTY Ltd 5 Nov 1970 [7 Nov 1969] 52577/70 Headings F2G and F2P In a pipe or rod coupling or a tube stopper, a coupling member comprises a cylindrical body having a screw-threaded portion and two coaxial bore portions of different diameters forming a shoulder which abuts a resilient annular clip carried in a groove in the pipe or rod. The coupling may be used to couple glass tubes 1, 2 via a fluid-tight resilient sealing washer 17, as shown in Fig. 1. Coupling members 4, 5, which may be of stainless steel, are slidable on the tubes 1, 2 and have counterbored portions in the shanks 6, 8 to form shoulders 11, 12. The clips 15, 16, retained in grooves 13, 14 in the glass tubes, abut the shoulders 11, 12 when the coupling members are screwed together. A shoulder may be provided on the tubes to limit the axial movement of each coupling member back along the tube. The shoulder may be a further clip retained in a groove in the tube. The end of a tubular glass vessel 1 may be sealed by a resilient blank washer (21) which replaces the washer 17 and is deformed by a cap (18) (Fig. 2, not shown) which replaces the coupling member 5. In a modification, the cap (18) has a small diameter axial bore to permit the passage of a hyperdermic needle which punctures the washer to connect with the bore of the vessel 1. Upon removal of the needle the puncture hole collapses and is sealed due to the resilience of the washer material.
Patent GB-1528979-A (GB)
Title: Piston pump
IPC: F04B17/03
Filed: 1975-12-23
Abstract: 1528979 Reciprocating pumps OXY METAL INDUSTRIES (INTRA) Inc 23 Dec 1975 [24 Dec 1974] 52613/75 Heading F1A A pump, e.g. for a portable water purifier, comprises pistons 26, 27 reciprocated by a rocker arm 32 pivoted at 29 and actuated either manually through foldable arms 12, 13 or by a motor acting via a reduction gear and pin-and-slot connection, Fig. 6 (not shown). The cylinder bores are formed in a housing section 22 having inlet and outlet check-valves 43, 44 for each cylinder. A manifold section 23 is bolted to section 22 and has passages connecting the check-valves to a common inlet and a common outlet, the outlet passage also being connected to an accumulator 53. For manual operation, a casing 11 receiving the pump has foldable feet (17, 18) Fig. 1 (not shown), for engagement by the knees or feet. The pistons and housing sections may be of acetal plastics.
Patent GB-1134350-A (GB)
Title: Building blocks for electrical toy assemblies
IPC: A63H33/04
Filed: 1966-11-25
Abstract: 1,134,350. Building blocks for electrical toys. INTERNATIONAL STANDARD ELECTRIC CORP. 25 Nov., 1966 [26 Nov., 1965], No. 52914/66. Addition to 1,130794. Heading A6S. In a toy building block as described in the Parent Specification 1,130,794 the spigot that is provided to make electrical contact, includes a threaded axial bore hole into which is screwed a metallic stud and this stud has a hollow guide housing at the inward end which is substantially closed by a washer with a central hole and protruding from this housing is a resiliently mounted pin which may contact the stud of another block when such blocks are interlocked. In Fig. 1, the stud 2, which is screwed into the spigot 1, contains the resiliently mounted pin 4.
Patent GB-1096499-A (GB)
Title: Method and apparatus for measuring temperature
IPC: G01K1/14
Filed: 1965-12-16
Abstract: 1,096,499. Immersion pyrometers. BETEILIGUNGS - UND PATENTVERWALTUNGS G.m.b.H. Dec. 16, 1965 [Dec. 17, 1964], No. 53486/65. Heading H1K. The temperature of molten metal is determined by projecting a temperature sensitive device into the melt in a predetermined trajectory and recording the temperature by suitable apparatus connected by cable to the device. The device is initially held by a device from which it is dropped or propelled into the melt, with the cable paid out from a spring biased reel. The preferred temperature sensitive device is an immersion pyrometer consisting of a thermocouple 1 inside a carboard tube 6. To the leading end of the tube is attached a distance rod 4 with a weight 3 at its end. The tube may be provided with stabilizing fins 9.
Patent GB-1328554-A (GB)
Title: Polymer isolation
IPC: C08F6/02
Filed: 1970-11-11
Abstract: 1328554 Isolation of polymers E I DU PONT DE NEMOURS & CO 11 Nov 1970 [17 Nov 1969] 53673/70 Heading C3P Elastomeric polymers, prepared in solution using a co-ordination catalyst having a transition metal component, are isolated by a process comprising (a) mixing the polymer solution with water or steam to deactivate the catalyst and form an aqueous phase, (b) adding 0À05 to 2 moles of a bisulphate, bisulphite or persulphate salt per mole of the transition metal catalyst component, (c) separating the aqueous phase from the polymer solution and (d) separating the polymer from the solvent. The polymer may be, e.g. a conjugated diene polymer or an olefin-non-conjugated diene copolymer. Usually steam is used in step (a) to vaporize unreacted monomers. The process is exemplified by the isolation of an ethylenepropylene-1,4-hexadiene copolymer prepared in tetrachloroethylene using a VOCl 3 -(i-Bu) 2 AlCl catalyst, the additive in step (b) being sodium bisulphate. Other additives mentioned are potassium bisulphate, ammonium and potassium persulphates, potassium metabisulphite and sodium bisulphite.
Patent GB-1476777-A (GB)
Title: Deposition of silicon carbide
IPC: H01L33/00
Filed: 1974-12-16
Abstract: 1476777 Epitaxial SiC deposition CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE GmbH 16 Dec 1974 [28 Dec 1973] 54161/74 Heading C1A [Also in Division H1] Deposition of an epitaxial layer of hexagonal silicon carbide on a single crystal silicon substrate is effected by depositing silicon carbide at a temperature below the melting point of silicon from a gaseous mixture comprising (i) at least 50% by volume of hydrogen, (ii) one or more components selected from silicon halides, organosilanes and silane, (iii) a hydrocarbon and (iv) water vapour and/or a substance which forms water vapour at the deposition conditions. As the specified silicon halide the preferred compounds are silicon chlorides, the preferred organosilanes are C 1 -C 4  alklysilanes and the preferred hydrocarbons are alkanes and alkenes containing up to 8 carbon atoms. Generally carbon dioxide is utilized as the source of water vapour. Deposition is preferably carried out in the temperature range 1100-1400 C. Selective deposition of silicon carbide may be effected by first depositing a silicon dioxide or nitride layer on the silicon substrate and providing the said layer with orifices through which the silicon carbide is deposited on to the silicon surface only. Doped silicon carbide layers may be obtained by mixing volatile components of Group IIIB or Vb elements, e.g. B 2 H 6 , BCl 3 , AlCl 3  for P-doping or PH 3 , AsCl 3  for N-doping, with the gaseous mixture utilized for SiC deposition. For P-N transition a change of dopant is made during deposition.
Patent GB-1328530-A (GB)
Title: Balanced free piston engine
IPC: F02B71/00
Filed: 1970-11-16
Abstract: 1328530 Free piston engines; reciprocating pumps A BRAUN 16 Nov 1970 [14 Nov 1969] 54481/70 Headings F1A F1B [Also in Division H2] A free piston engine comprises a synchronizer balancer assembly including a first portion 46 connected to move synchronously with the engine free piston and a second counterbalancing movable portion 62 operatively connected to the first portion for reciprocating movement in a direction opposite to that of the first movable portion, means being provided on the second portion for connection to the reciprocably movable member of an energy absorbing device 14. The energy absorbing device may be a pump, an electrical generator or a double acting compressor. In a modification two single acting oppositely directed power sections may be employed, placed one on each end of a free piston engine. The energy absorbing device or the generator positioned between the two power sections. The second counterbalancing movable portion is provided with movable members which have been designed so that they can be readily removed and replaced by movable members of different weights so that the counterbalancing weight may be varied.
Patent GB-1214461-A (GB)
Title: Photographic colour printing
IPC: C08F283/01
Filed: 1966-05-12
Abstract: 1,214,461. Photographic colour processes. KODAK Ltd. (EASTMAN KODAK Ltd) Aug. 14, 1967 [May 12, 1966; Dec.7, 1966], Nos.21220/66 and 54777/66. Heading G2C. Multi-colour reproductions are made by imagewise exposing a first layer of a resin whose softening point is raised by exposure to light and which contains a dispersed pigment, pressing the layer in contact with a receiving sheet while heating to a temperature greater than the softening point of the resin before exposure but less than the softening point after exposure, thereby transferring the unexposed pigmented resin to the receiving sheet, exposing uniformly the transferred image to raise its softening point, and thereafter repeating the process with at least one other such layer containing a different pigment and transferring the image to the same receiving sheet. A flexible transparent support may be used and, in a modification, the unexposed resin of each matrix is transferred to one or more receiving sheets and the matrices with the exposed areas superposed for viewing. The process is suitable for use with continuous or halftone originals. The matrices are as disclosed in Specification 951, 928 but contain pigments dispersed therein and may be polyesters as disclosed in specification 1,214,462.
Patent GB-1308925-A (GB)
Title: Process for producing positive images
IPC: G03C5/56
Filed: 1970-11-24
Abstract: 1308925 Photochromism E I DU PONT DE NEMOURS & CO 24 Nov 1970 [26 Nov 1969 17 Aug 1970] 55857/70 Heading C4S [Also in Division G2] A phototropic composition used for the preparation of photographic positive images by simultaneous imagewise exposure to a first wavelength range and uniform exposure to a second wavelength range (see Divisions G2-G3) comprises a phototropic spiropyran or 2,3-diphenyl indenone oxide in a resin binder. The composition may be coated on a substrate. In Examples 12 and 13, paper coated with a mixture of acetone, cellulose acetate butyrate, N- ethyl-p-toluenesulphonamide and either 1<SP>1</SP>,3<SP>1</SP>,3<SP>1</SP>- trimethyl - 6 - nitrospiro(2H - 1 - benzopyran- 2,2<SP>1</SP>-indoline) or 2,3-diphenyl-1-indenone oxide is used.
Patent GB-1494740-A (GB)
Title: Photographic silver halide emulsions
IPC: C09B23/00
Filed: 1974-12-31
Abstract: 1494740 Sensitized silver halide emulsion POLAROID CORP 31 Dec 1974 [2 Jan 1974] 56100/74 Heading G2C [Also in Division C4]  A photo-sensitive silver halide emulsion contains as a green sensitizer a benzimidazolo-thiocarboxyanine dye of the Formula wherein R<SP>1</SP> and R<SP>2</SP> are lower alkyl, R<SP>3</SP> is sulfoalkyl or carboxyalkyl each having an alkylene chain of from 1 to 4 carbon atoms; R<SP>4</SP> is hydrogen, halogen, lower alkyl, carbalkoxy, alkoxy or acetamido; R<SP>5</SP> is halogen, cyano or carbalkoxy; R<SP>6</SP> is hydrogen or halogen; Y is an anion customary in cyanine dyes; and n is 0 or 1. This dye is advantageously used in combination with a symmetrical benzoxazolocarbocyanine dye of the Formula herein R represents hydrogen or an alkyl group ave 1 to 3 carbon atoms and each R<SP>7</SP> represents a arboxy alkyl or sulphoalkyl group having 1 to 4 carbon atoms in the alkylene chain; Y represents an anion and n is 0 or 1, with n=0 in the inner salt form of the dye. The dyes of Formula I can be used in combination with other sensitizing dyes, a number being specified. A preferred green sensitizing combination comprises anhydro-5, 6-dichloro- 1, 3-diethyl-3'-(4"-sulphobutyl)-benzimidazolothiacarbocyanine hydroxide in combination with a dye of Formula 13 and a dye of Formula 16. Symmetrical benzothiazolocarbocyane dyes can be used with dyes of formula I to form panchromatic sensitizing combinations. The dyes can be added as solutions in methanol, trifluoroethanol or pyridine. In a comparison test the improved sensitization of anhydro-5-cyano-1, 3-diethyl-3'- (3"-sulphopropyl)-benzimidazolothiacarbocyanine hydroxide compound with a known dye having the sulphopropyl group on the nitrogen atom of the  benzimidazole nucleus is described. Examples are given of the use of the dyes in black-and-white and monochromatic and multi-colour elements incorporating dye developers for diffusion transfer.
Patent GB-1281065-A (GB)
Title: Improvements in loom let-off and take-up motions
IPC: D03D49/06
Filed: 1969-11-18
Abstract: 1281065 Loom take-up devices NORTH AMERICAN ROCKWELL CORP 18 Nov 1969 [6 Jan 1969] 56263/69 Heading D1E [Also in Division H2] In a loom having warp delivery rollers 14, 15 driven by a variable speed electric motor 20, fabric take-up rollers 28 and a pair of rollers 52 supporting the cloth roll 53 are driven by separate electric motors 25, 51, of a known type which automatically maintain constant tension in the warp yarn and the woven fabric. The speed of motor 20 is set at a desired rate of supply of warp by control knob 24 on a panel 22 at the desired tension in the warp yarn and fabric is set by control knobs 37, 66. The motors 29, 51, are of a known capacitor controlled type comprising a d.c. shunt-type motor with a separately excited armature circuit energised with d.c. from a rectifier whose c.c. input is in series with capacitors. Under no-load conditions the voltage drop across the capacitor is small with most of the input voltage appearing across the armature so that the motor runs at its highest speed. Under load the capacitor voltage increases and armature voltage decreases so that the motor speed decreases and a constant tension is automatically maintained on the warp and fabric. The motor speed can decrease to stalling without excessive heating. The ends of the cloth rule 53 are guided by slots 55 in a stand 49.
Patent GB-574209-A (GB)
Abstract: 574,209. Lamps for airfields. HOLOPHANE, Ltd., and ENGLISH, S. Jan. 17, 1944, No. 872. [Classes 75 (ii) and 75 (iv)] Warning lights for airfields consist of two lamp fittings arranged one above the other and fitted with lenses concentrating the light from each lamp into horizontal or slightly upwardly inclined beams, some of the rays being diverted into the region which would otherwise be put in shadow by the lamp support. Fig. 1 shows upwardly and downwardly projecting lamps mounted d in sockets 1, 2 attached to radial lugs 3 on a flanged metal fitting 4 to which domed or well glasses 6 and red globes 10 are secured against rubber washers 5 by rings 11 and pivoted screws 12, 13. The glasses 6 are formed on one surface with annular prisms 7, 8 and an arcuate rib 9 to concentrate the light into slightly upwardly inclined beams of small vertical divergence and on the other surface with vertical prisms 16 to direct some rays into the region beyond, a vertical pipe or pipes carrying the fitting 4 and forming a conduit for the electric conductors. Alternatively the prisms 16 may be formed on the inner or outer surfaces of the globes 10.
Patent GB-1246997-A (GB)
Title: Vibration damping laminated systems
IPC: C08F291/00
Filed: 1968-12-04
Abstract: 1,246,997. Vibration damping laminates. FARBWERKE HOECHST A.G. 4 Dec., 1968 [6 Dec., 1967], No. 57606/68. Heading B5N. [Also in Divisions B2 and C3] A vibration damping laminated system comprises two plates, e.g. of metal such as steel, bonded together with an interlayer comprising a graft polymer of 40-80% by weight of a equimolar mixture of styrene and acrylonitrile on 60-20% by weight of a copolymer of 30-40% by weight of vinyl acetate, 30-40% by weight of 2-ethylhexyl acrylate, 10-30% by weight di-n-butyl maleate and 5-15% by weight of a copolymerizable unsaturated caroxylic acid, e.g. crotonic acid. The graft polymer may be cross-linked with a compound containing a plurality of epoxide or isocyanate groups. The graft polymer may contain minor amounts of fillers, e.g. heavy spar, silicic acid, graphite, soot or a mixture thereof, and one or more plasticizers. The total thickness of the laminated system may be 1-6 mm., the thickness of the interlayer being 0À1-1 mm. and the ratio of the thickness of the plates being from 1 : 1 to 4 : 1. The graft polymer may be applied to the plates by trowelling, brushing or pouring at an elevated temperature and the system cooled under pressure between rollers. A solution of the copolymer in the mixture of styrene and acrylonitrile containing a polymerization initiator, e.g. tertiary butyl hydroperoxide, may be applied between the plates and the laminated system subjected to heating at 60-180 C. to effect grafting.
Patent GB-1169580-A (GB)
Title: Tongs-Type Device
IPC: B26B15/00
Filed: 1966-12-28
Abstract: 1,169,580. Stamping; shearing. WALTER KOSS O.H.G. 28 Dec., 1966 [8 Jan., 1966; 19 Aug., 1966], No. 57941/66. Headings B3Q and B3W. In a tongs device having a handle-forming housing sleeve 2 and a piston 3 operated by fluid pressure and having a manually actuated valve for the control of the fluid, the piston 3 itself contains a conical bore 9 into which the rearwardly extending legs of the tongs project, to produce wedging action which closes the tongs. Interchangeable inserts 1 are connected to the hollow handle 2 by a pin 6, the rearwardly pointing legs of the tongs 7 extending into the piston cavity 9 so that when a lever 5 is pressed, fluid passes the ball valve 15 to force the piston 3 forward and close the tongs 7 against pressure of a return spring 8. Release of the hand-lever 5 closes the fluid inlet 13 and opens the outlet 14, allowing a spring 10 to return the piston 3.
Patent GB-1168980-A (GB)
Title: Surface Finishing of Optical Elements
IPC: C23C14/04
Filed: 1966-12-28
Abstract: 1,168,980. Coating optical elements by vapour deposition. PERKIN-ELMER CORP. Dec.28, 1966 [Dec.29, 1965], No. 57968/66. Heading C7F. [Also in Division G2] The surface of an optical element is finished to a desired contour by first determining the location and depth of errors in the contour of the surface and then vapour depositing a layer over the entire surface which is varied in depth in accordance with the depth of the errors at any particular location. An inter-ferogram is first taken of the surface from which a mask is made by etching a copper plate, and then material, e.g. silica, is deposited from a source 73 through the mask, whilst it is reciprocated, on to the element 12. A rotatable member 76 provides a radially uniform deposition.
Patent GB-1413139-A (GB)
Title: Substituted piperidinoalkanone oxime derivatives
IPC: C07D211/70
Filed: 1972-12-15
Abstract: 1413139 Pharmaceutical aerosol compositions RICHARDSON-MERRELL Inc 15 Dec 1972 [28 Jan 1972] 57996/72 Heading C4X [Also in Division C2] Pharmaceutical compositions in the form of aerosols comprise a compound of Formula I in which R is H or OH, R 1  is H or R and R 1  taken together form a second bond, n is 1-3 and Z is thienyl, phenyl or phenyl substituted by halo, 1-4C alkyl, 1-4C alkoxy, di(1-4C alkyl)- amino or a saturated monocyclic heterocyclic ring; and a gaseous or liquefied propellant such as Cl 2 CF 2 , optionally mixed with C 2 H 2 Cl 2 F 2 , together with any co-solvents or wetting agents as may be necessary.
Patent GB-1292839-A (GB)
Title: Improvements in and relating to selective separation of metals by pyrolysis
Inventor: HAKE ANDREAS
IPC: C22B3/22
Filed: 1969-11-27
Abstract: 1292839 Pyrolytic separation of metal values RUTHNER INDUSTRIEPLANUNGS AG and METALLURGIE HOBOKEN 27 Nov 1969 58114/69 Headings C1A and C1N Metal values in solution are separated pyrolytically by atomizing and spraying the solution which has been treated to convert ions in a lower valency state to a higher valency state, in cocurrent with a gas into a heated reactor to dehydrate the solution and pyrolyse the solute, whereby the temperature of the reactor is selected so as to render some of the anions insoluble whilst the others remain soluble and are extracted by leaching. The preferred anions are Cl-, NO 3 -, and SO 4 --. In the case of Clthe reaction is carried out at 2-400‹ C. and the Clis recovered as HCl; with NO 3 - the reaction temperature is 125-150‹ C. and the NO 3 - is recovered as HNO 3  and with SO 4 -- anions the reaction temperature is 600-650‹ C. and the SO 4 -- is recovered as H 2 SO 4 . The cations should be in their higher valency states before separation and this may be achieved by oxidizing the solution with Cl 2 , O 2  or air. Metals whose compounds are pyrolysed are Fe, Cr, Al, As, Sb, Sn, Mo, W, Ti, Ta and Nb, and may be separated from Ni, Co, Cu, Mn, Zn, Ca, Pb and Mg, whose compounds remain soluble.
Patent GB-1411257-A (GB)
Title: Glass manufacture
IPC: C03C1/00
Filed: 1972-12-21
Abstract: 1411257 Producing glass PPG INDUSTRIES Inc 21 Dec 1972 [23 Dec 1971] 59047/72 Heading C1M Glass is prepared by feeding a free-flowing, glass-forming, aqueous slurry of at least one metal hydroxide, sand and other glass-forming ingredients to a pool of molten glass at a rate sufficient to minimize spattering, segregation of reactants and carry-off of alkali with evolved steam, the metal hydroxide providing from 70- 100% by weight of the alkali metal content of the glass to be formed, and the slurry having a water content of at least 10% by weight, and keeping the temperature of the molten glass at or above the fusion temperature of the combined reactants for a time sufficient to effect reaction, and recovering the resultant glass formed, said glass having the same composition as the molten glass pool. The slurry preferably contains 10-30% by weight water by weight of the alkali metal hydroxide and sand. Preferably the glass formed has a SiO 2 /M 2 O mole ratio of 1-4, where M is a monovalent metal. The metal hydroxide preferably is sodium hydroxide, but the hydroxides of potassium, calcium, lead or aluminium may also be used. The pool of molten glass is preferably of depth 1-6 feet, and is maintained at least at 2300 F. In a modification of the process, a slurry of alkali metal hydroxide and sand only may be charged to a pool of molten metal silicate, so as to produce an alkali metal silicate.
Patent GB-1395408-A (GB)
Title: Mine cage
IPC: B66B17/06
Filed: 1972-12-21
Abstract: 1395408 Lift cages M B WILD & CO Ltd 7 Dec 1973 [21 Dec 1972] 59243/72 Heading B8L A mine cage comprises a frame 10 and a pair of vertically spaced apart rectangular normally horizontally extending platforms 13, 14, the lower one 14 of which is fixed to the frame, and the upper one 13 of which is pivoted to the frame about a horizontal axis which extends parallel to and lies intermediate a pair of opposed edges of the platform 13. The pivot axis is offset towards one of the opposed edges of the platform 13, which is pivotable vertically under the control of fluid pressure rams 16, 17 on an upper frame member 11, and interconnecting traction cables passing over rollers 18, 19, 20, 21 on the frame 10. When a load longer than the length of platform 13 is to be carried, the platform is tilted by the rams to position the load diagonally within the cage and supported by closed gates 25 on the platform 13.