baber/WOPTO huggingface dataset:
Patent GB-1234360-A (GB)
IPC: F02B1/04
Filed: 1969-11-11
Abstract: 1,234,360. Evaporators, multi-stage flash type; desalination of sea water. AMF Inc. 11 Nov., 1969 [12 Nov., 1968], No. 55158/69. Heading B1B. Heated sea water is passed, via line 58, through a small number of flash chambers 60a..60d maintained at successively reduced pressure so that partial vaporization of water takes place in each chamber, the vapours flow to condensers 66a..66d from which condensate (i.e. desalinated water) is withdrawn through line 92; the brine leaving chamber 60d flows to flash chamber 70, which is also supplied with heated raw sea water, so that further vapour is formed; this vapour is drawn through line 72 into compressor 74, and the compressed vapour is passed to section 64 of heatexchanger unit 62 where it heats the sea water passing through coil 54 before being introduced through line 58 into the first flash chamber. The condensate formed in section 64 of unit 62 is passed through line 76 to mix with the condensate obtained in condensers 66a.. 66d. Compressor 74 is driven by steam turbine 50, the exhaust steam flowing through line 52 to section 56 of unit 62. Raw sea water is introduced into the system through pipe 104, flows through heater-coils 106, 112, and is then mixed with acid in line 114 before being introduced into de-aerator 108. The de-aerated sea water is pumped through heater-coil 122 and line 124 into chamber 70. If desired, an external heat source is interposed in line 124. Some of the mixture of brine and raw sea water leaving chamber 70 is pumped through line 82, condenser coil 84, and coil 54, and is then introduced into the first flash chamber 60a. The remainder of the mixture leaving chamber 70 flows through line 88, level-senser 90 and heatexchangers 96, 98, back to the sea. Some of the mixture flashes in heat-exchangers 96, 98, and the vapours condense on coils 122, 112. The distillate leaving condensers 66d also passes through heat-exchangers 96, 98, and mixes with the condensate from coils 112, 122. The combined distillate is withdrawn from the system through pipe 102. Also described is an apparatus, suitable for shipboard, wherein the compressor suitable for shipboard, wherein the compressor is driven by a diesel engine.
Patent GB-1239613-A (GB)
IPC: C09K11/02
Filed: 1968-09-25
Abstract: 1,239,613. Glass compositions. SYLVANIA ELECTRIC PRODUCTS Inc. 25 Sept., 1968 [25 Sept., 1967; 2 Jan., 1968], No. 45614/68. Heading C1M. [Also in Division H1] The envelope of mercury vapour discharge lamp is made of a soda-lime glass having a sodium oxide (Na 2 O) content greater than about 5%, a typical composition in weight per cent being SiO 2  74-76; Na 2 O 14-16; CaO 5-7; MgO 3-5.
Patent GB-1252450-A (GB)
IPC: G03B17/56
Filed: 1968-12-06
Abstract: 1,252,450. Photographic apparatus. EASTMAN KODAK CO. Dec.6, 1968 [Dec.8, 1967], No.58027/68. Headings G2A and G2E. Photographic apparatus comprises an electrical circuit having two contacts for a battery cell, relative movement between the cell and at least one of the contacts for cleaning purposes, being provided by a first member responsive to the insertion into the apparatus of a second member. As applied to flashlight photography (Fig.1), insertion of a bulb 12 into a socket 11 depresses a pin 14 which moves a cell 15 relative to its contacts 16, 17. The cell 15 is returned, on removal of the bulb by springs 18, 19. Similar provision may be made for a flash-cube 12<SP>1</SP> Fig. 2 (not shown). As applied to cinematography, Fig.3, insertion of a magazine 51 into a chamber 50 depresses resilient members 34, 35 and 44, 45 which move resilient contacts 31, 32 and 41, 42 relative to cells 33 and 43, respectively. Removal of the magazine 51 allows return of the contacts through their resilience. The cell 33 may be incorporated, for example, in an exposure-control circuit, while the cell 43 may be incorporated in a camera-drivemotor circuit.
Patent GB-1257603-A (GB)
IPC: C08G63/58
Filed: 1970-02-24
Abstract: 1,257,603. Modified epoxy resins; vinyl aromatic-unsaturated acid copolymer derivatives. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 24 Feb., 1970, No. 8811/70. Headings C3B and C3P. [Also in Division C7] A condensate which is thinnable by water after neutralization and which contains free COOH groups which is prepared by: (A) reacting at 120-180‹ C. a polyglycidyl ether of a polyhydric phenol with 0À08-0À35 acid equivalents per epoxy equivalent of a copolymer of 2-20 parts by wt. of a C 3-18  ethylenically unsaturated acid and 98-80 parts by wt. of styrene or vinyl toluene. (B) The product of step (A) is then esterified with 0À8-1À3 acid equivalents of an ethylenically unsaturated fatty acid per hydroxyl equivalent of the OH- containing ester. (C) The resultant polyester is then reacted with at least 3% by wt. (based on the polyester) of an ethylenically unsaturated dicarboxylic acid or anhydride thereof. A preferred diglycidyl ester is derived from bisphenol A and has an epoxide equivalent of 400-600. Esterification may take place in the presence of a catalyst, e.g. an organic phosphine. Maleic anhydride may be used in step (C) at 3-10% by wt. of the polyester, reaction may take place at #175‹ C. Water thinnable binders may be prepared by neutralizing at least 40% of the free COOH groups, e.g. with a primary, secondary or tertiary (cyclo)aliphatic amine. Uses.-Electrodeposition.
Patent GB-1264444-A (GB)
IPC: H04N5/775
Filed: 1970-11-19
Abstract: 1,264,444. Radio receiving circuits; transistor amplifying circuits. BLAUPUNKT-WERKE G.m.b.H. 19 Nov., 1970 [19 Nov., 1969], No. 55079/70. Headings H3Q and H3T. A coupling circuit for passing a television video signal from a first unit 10, Fig. 1, to a second unit 11 at video frequency while isolating the chassis of the two units from each other comprises a transformer 13 having a primary winding 14 and a secondary winding 15 and switching means 19, 22, respectively, for connecting the primary winding 14 with the first unit 10 and the secondary winding 15 with the second unit 11 during the picture signals to pass them to the second unit 15 the picture signals, and for disconnecting the windings from the units to enable the stored magnetic energy of the transformer to be dissipated in a shunt 16 during the line synchronizing intervals. In an embodiment, a television receiver comprises a video detector feeding into an emitter-follower (not shown) coupled to the primary winding 35, Fig. 3, of transformer 36 via cascaded emitterfollowers 32, 34. The secondary winding 37 feeds the input of a video tape recorder via emitter-follower 38; the resistive shunt 35 is connected across primary winding 35. The switching means comprise the collector to emitter paths of transistors 43, 40, the bases of which are driven from windings 46 on the transformer of a blocking oscillator 45; the -base of this is supplied with line flyback pulses over capacitor 47. The emitter of transistor 40 is coupled to the emitter of an auxiliary transistor 41. A channel for playback of recorded video signals is also provided, and this comprises transformer 60, having a primary damping resistor 62; transistors 68, 69 with their bases driven from the windings 46 comprises the switches. Recorded video signals are applied to the primary winding 62 via cascaded emitter followers 52, 57, 59, transistors 52, 57 being A.C. coupled by capacitor 55 and the D.C. restored by diode 53. The output from secondary winding 63 is transferred to the television receiver via an amplifier comprising emitterfollower 64, a grounded base stage 65 and output stage 67.
Patent GB-1265075-A (GB)
IPC: C08F10/02
Filed: 1969-06-11
Abstract: 1,265,075. Polymerizing α-olefins. FARBWERKE HOECHST A.G. 11 June, 1969 [27 June, 1968 (2)], No. 29554/69. Heading C3P. [Also in Division C2]  Ethylene, or a mixture of ethylene and up to 10% by weight of one or more α-olefins of the formula R-CH = CH 2  wherein R is C 1-13  hydrocarbon, is polymerized at 20-120‹ C. and up to 20 atmospheres, in solution, suspension or the gaseous phase in the presence of a catalyst comprising (A) the reaction product of a tetravalent titanium compound containing halogen and alkoxy or aralkoxy groups and an inorganic or halogen-containing magnesium compound which contains at least 1À5 moles of hydroxy groups per gram-atom of magnesium; and (B) an organo-aluminium compound. The magnesium compound may have the general formula MgCl 2 .XMg(OH) 2  wherein X is at least three or it may be a magnesium oxychloride cement. It may be reacted with an inorganic metal compound which will not inhibit polymerization, e.g. an oxide, hydroxide, halide, sulphate, carbonate, phosphate or silicate, preferably zinc chloride, before reaction with the tetravalent titanium compound which may have the formula TiX n (OR) 4-n  wherein R is C 1-18  hydrocarbon, X is chlorine or bromine and n is 1-3, e.g. diethoxytitanium dichloride, triethoxytitanium chloride, di-isopropoxy titanium dichloride, tri - isopropoxytitanium chloride. The organo-aluminium compound (B) is preferably trialkylaluminium, dialkylaluminium hydride, dialkylaluminium chloride, alkylaluminium sesquichloride or the reaction product of trialkylaluminium or dialkylaluminium hydride with a C 4-20  diolefin. The component (A) may be treated with the organoaluminium compound (B) prior to polymerization at - 30-100‹ C. in order to reduce the tetravalent titanium compound to a lower valency.
Patent GB-1266605-A (GB)
IPC: C08J7/04
Filed: 1969-03-13
Abstract: 1,266,605. Coating. STANDARD PACKAGING CORP. 13 March, 1969, No. 13361/69. Heading B2E. [Also in Divisions B4 and B5] A method of making a laminate comprises subjecting the surface of a polyolefine substrate to oxidative treatment to increase the free surface energy as measured by an increase in wettability to water, applying an adhesion promoting primer layer to the surface and either (a) melt extruding a normally solid filmforming synthetic linear polyamide in molten form onto the exposed surface of the primer and optionally subjecting the exposed surface of the polyamide to oxidative treatment, applying an adhesion promoting primer thereto and applying a layer of a copolymer of vinylidene chloride with vinyl chloride or acrylonitrile to the exposed surface of the primer, or (b) applying a layer of a copolymer of vinylidene chloride with vinyl chloride or acrylonitrile to the exposed surface of the primer, applying an adhesion-promoting primer to the exposed surface of the copolymer and melt-extruding a layer of a normally solid synthetic film-forming linear polyamide in molten form onto the exposed surface of the primer. Specified primers, which may be. subjected to oxidative treatment prior to applying layers thereto are polyalkyline imines and polyurethanes which are preferably applied in solution or dispersion. Specified polyolefines are polymers and copolymers of ethylene and propylene. Specified polyamides are nylon 6, nylon 6.6, mixtures of nylon 6.6 and nylon 6.10, mixtures of nylon 6 and nylon 6.6 and mixtures of nylon 6, nylon 6.6 and nylon 6.10. The vinylidene chloride copolymers are preferably applied from solution. The oxidative treatment may be effected by a flame, an oxidising agent, nitrous oxide, ozone, ultra-violet radiation or electrostatic discharge. The products of the invention may be folded such that peripheral parts of the polyolefine surface are in contact and heat-sealed together along at least part of the area of the contact.
Patent GB-1295474-A (GB)
IPC: B01J27/28
Filed: 1969-03-28
Abstract: 1295474 Regeneration of supported oxychlorination catalysts IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Feb 1970 [28 March 1969] 16456/69 Heading B1E [Also in Division C2]  Supported catalyst which is sulphur-contaminated by reason of use in the oxychlorination of a hydrocarbon or chlorinated hydrocarbon is regenerated by contact with an acidic, neutral or basic aqueous medium, for example aqueous hydrochloric acid or caustic soda solution, and thereafter may be used in the oxychlorination of an aliphatic or aromatic hydrocarbon, for example ethylene, or chlorinated hydrocarbon, for example 1,2-dichloroethane. The catalyst may comprise either a compound of copper, optionally associated with an alkali metal chloride and/or with a compound of an element of variable valency other than copper, for example a rare earth metal, or a compound of a Group VIII noble metal, for example as disclosed in Specification 1086222; exemplified support materials are silica, alumina and diatomaceous earth. The regenerated catalyst may be reimpregnated with metal values to compensate for losses which result from leaching during contact with the aqueous medium. As exemplified, ethylene is oxychlorinated by contacting, at a temperature of 235-240C, a gaseous mixture comprising ethylene, hydrogen chloride, air and a mixture of nitrogen and sulphur dioxide with fluidised catalyst comprising chlorides of copper and sodium supported on activated alumina, the catalyst being either fresh catalyst or catalyst deactivated by reason of use for 133 hours or regenerated catalyst obtained by stirring the deactivated catalyst with caustic soda solution at ambient temperature, washing with water until the washings are neutral and thereafter drying.
Patent GB-1295930-A (GB)
IPC: D05B63/00
Filed: 1970-09-25
Abstract: 1295930 Bobbin tension adjustment SINGER CO 25 Sept 1970 [2 Oct 1969] 45776/70 Heading D1G A bobbin case 1, having an arm 2 pivoted at 3 to the case and biassed by a spring means 12, 13 to exert pressure on a bobbin (not shown) to provide thread tension, has a two part device for adjusting the tension comprising a first means 21 connected to the body and a second means 24 movable relatively to the first to set the maximum tension, the two means being movable together to reduce the tension. To set the device part 21 is screwed downwards until its head 22 abuts the lower face of the stepped aperture 27, part 24 then being screwed down to bear against the ball pivoted spring 12, 13 until the maximum thread tension (40-45 gms) is achieved. The opening in part 21 above the part 24 may then be filled with sealing material. To change the thread tension the operator may screw part 21 up or down between the limits set by the step of 27 and the head 32 of a rivet 31, but the preset maximum tension cannot be exceeded and the spring cannot be overstressed. The bobbin case is a modification of that described in Specification 994629, and the arm 2 has a spherical protuberance (4, Fig. 2 not shown) which engages a spherical seat in the top flange of the bobbin.
Patent GB-1296054-A (GB)
IPC: F23D11/08
Filed: 1969-04-11
Abstract: 1296054 Liquid fuel burner; spark igniter LANDON KINGSWAY Ltd 16 March 1970 [11 April 1969] 18627/69 Headings F4F and F4T In a burner, liquid fuel is supplied to a helical core and sleeve assembly 4, which, when driven by an electric motor 3, feeds the fuel to an air impeller 10 also driven by motor 3, ignition being effected by a spark igniter 11. The igniter may be connected to the secondary of a transformer, whose primary is linked to a timing control arrangement.
Patent GB-1296329-A (GB)
Inventor: BURROWS O M
IPC: C04B35/50
Filed: 1971-04-19
Abstract: 1296329 Refractories NORTON CO 19 April 1971 [13 April 1970] 26311/71 Heading C1J A refractory mix comprises graded grains coated with 2-20% by volume of a vitrified glass. Specified grains are of Al 2 O 3 ; MgO; MgO.Al 2 O 3 ; ZrO 2 ; 2Al 2 O 3 .3MgO; optionals are clay, SiO 2  (which forms mullite with Al 2 O 3  grains), MgO (which forms spinel with Al 2 O 3 ). Not all the grains need be coated, and an organic plasticizer can be included.
Patent GB-1296463-A (GB)
IPC: F16D69/02
Filed: 1970-01-16
Abstract: 1296463 Brakes KELSEY HAYES CO 16 Jan 1970 [14 Feb 1969] 2336/70 Heading F2E [Also in Division C3] A brake assembly comprises a braking member and a friction member adapted to be disposed in frictional contact with the braking member during a braking action, wherein the friction member contains no ferrous metal and comprises (A) from 10 to 90% by weight of a fibrous reinforcing material, (B) from 0 to 80% by weight of a particulate filler, (C) from 5 to 60% by weight of a binding agent which is a heat resistant, thermoset polymer, and (D) from 5 to 75% by weight of a fluorocarbon resin which is polytetrafluoroethylene, a copolymer of tetrafluoroethylene and hexafluoropropylene or a mixture thereof, the percentages being based on the total weight of (A), (B), (C) and (D). The friction member may comprise a plurality of two types of sections the first type comprising (A) and (C) and optionally (B) and/or (D) and the second type comprising (D). The two types may alternate. The first type may comprise a plurality of cavities and the second type may be in the form of a plurality of inserts disposed in these cavities. In the examples the friction member comprises asbestos fibres, phenolic resin and polytetrafluoroethylene.
Patent GB-1301265-A (GB)
IPC: H05B3/12
Filed: 1970-03-25
Abstract: 1301265 Aluminium-containing alloy coatings INTERNATIONAL MATERIALS CORP 25 March 1970 [25 March 1969] 14577/70 Headings C7A and C7F [Also in Division F4 and H5] An oxidation-resistant heating element 24, (or other furnace component), capable of withstanding high temperatures in air, comprises a solid core member 26 of graphite, carbon, tungsten or molybdenum with a coating 32 of an alloy of aluminium with tin, indium or gallium defined by triangle ABC, Fig.2. The alloy coating normally includes tungsten and its preferred composition is indicated by quadrilateral DEFG in Fig. 2. The coating is applied by dipping the core in the molten alloys or is sprayed or sputtered directly on to the core. Part of the aluminium is substituted for by chromium, (up to 30%), and part of the tungsten is substituted for by boron (up to 10%). The coating may also include gold, silver or copper replacing a minor part of the idium, tin or gallium. The aluminium forms a protective oxide film on a molten layer of tin, indium or gallium during operation of the element 24. The element is straight, looped or W-shaped, and has graphite end-pieces 28a, 28b, and brass electrodes 34a, 34b, with coating 32 applied to the end-pieces also. An element 40, Fig.4, comprising a tungsten core 44, graphite end-piece 46 and alloy coating 47, is mounted in a furnace wall 42, in a passage 48, so as to project into the furnace cavity 50. The element conductor is an aluminium rod 52, with a massive thermally-conductive heat sink 54, having a threaded portion 52a screwing into bore 46a of piece 46. The element is then self-supporting in the furnace cavity. If required, aluminium supports for the element may be provided. The invention is also stated to have application to crucibles, heat shields and linings, and other furnace components, and to heated filaments, where oxidation-resistant coatings are required.
Patent GB-1302037-A (GB)
IPC: G03B19/18
Filed: 1969-07-21
Abstract: 1302037 Film feed mechanism ELLIOT BROS (LONDON) Ltd 9 July 1970 [21 July 1969] 36482/69 Heading G2E [Also in Division F2] In a cine projector, film 10 is intermittently fed by an indexing mechanism comprising a sprocket 26 at a variable framing speed, sprocket 26 only rotating upon coincidence of a signal in a first train of signals from transducer 58 on the shutter shaft 22 with a signal in a second train of signals from transducer 44 on a shaft rotatable through belt 52 and pulleys 48, 50 at speeds equal to or less than that of shaft 22. The two halves of split-V pulley 50 are axially adjustable by lever 54. The coincidences are detected by an AND gate 56 and energize an actuator 42 which momentarily displaces a Geneva cam 30 along splines 38 on shaft 22 so that pin 34 engages Geneva wheel 28. The transducer 58 is arranged to give synchronism between shutter position and the coincidences. In an alternative form, cam 30 has a further, fixed radially extending pin which is deflected by mechanical means into either of two parallel annular channels in a fixed guide co-axial with shaft 22, the deflection being controlled by actuator 42 as before. The indexing mechanism may be applied to TV projectors on conveyor belts.
Patent GB-1305902-A (GB)
IPC: E04B1/36
Filed: 1969-04-09
Abstract: 1305902 Adjustable jack - like supports PORTAKABIN Ltd 3 April 1970 [9 April 1969] 18258/69 Heading B8J An adjustable support for a structure, such as a cabin, to be levelled comprises a mounting 3 securable to the structure (not shown) with a base 1 sliding therein with a coarse adjustment provided by a pin 7 passing through a selected pair of holes in the base 1. Fine adjustment is provided by a bolt 11 threaded in a secondary support member S, adjustably secured to the member 1 by bolts 12, engaging a portion 8 of a bracket 6 attached to the mounting 3. Initial coarse adjustment may be made by a pneumatic or hydraulic jack or by a camming lever as described in Specification 982,839. The fine adjustment may be by a pawl and ratchet mechanism, Fig. 4 (not shown), operated manually or by pneumatic or hydraulic power.
Patent GB-1311864-A (GB)
Title: Selvedge knitting means
IPC: D03D47/44
Filed: 1969-10-07
Abstract: 1311864 Knitted selvedges H J TOVEY 7 Oct 1970 [7 Oct 1969] 49095/69 Heading DIE A selvedge'knitting needle 9 is reciprocated by a linkage consisting of a carrier arm 1 driven from the loom crankshaft 3 through an eccentric bearing 2 and a link 5 pivoted at one end 4 to the carrier arm 1 and at the other to the loom frame 7, such that the path of movement of the hook of the needle 9 is a tear drop shape and the needle shank 9 always remains in a plane including the fell 12. Loop of weft are inserted by a needle or rapier. The needle is supported between correspondingly grooved plates 8 and 10 on a cranked end part of the arm 1.
Patent GB-1312524-A (GB)
Title: Method of casting a concrete cross member to span a pair of  upright support members
IPC: E04G11/46
Filed: 1970-04-14
Abstract: 1312524 Shuttering A W NORLANDER 14 April 1970 17674/70 Heading E1S A mould for a concrete cross member comprises a core casing 15 supported on a platform 10, and adjustably clamped to supports 18, 19 by at least one bolt 32 cooperating with a nut 31 anchored in an extension 25 of the casing 15 which extends below the platform, the bolt acting on a pressure plate 33 having a flange 34 to close the gap between the casing and support. The bolt 32 can be tubular. (For Figures see next column)
Patent GB-1313424-A (GB)
Title: Tape cassettes
IPC: G11B23/087
Filed: 1970-04-17
Abstract: 1313424 Tape cassettes OLYMPUS OPTICAL CO Ltd 17 April 1970 58227/72 Divided out of 1313423 Heading G5R A twin-reel tape cassette has a liner sheet located between each side of the reels and the adjacent wall to reduce friction, each sheet having at least one edge formed by a fold and directed towards the tape. The sheets either have a single fold extending between the reel axes or a plurality of folds radiating from the reel centres.
Patent GB-1316262-A (GB)
Title: Pumps for fluids
IPC: F04F1/00
Filed: 1969-07-04
Abstract: 1316262 Raising liquids by gaseous pressure T H GOSSLING 3 July 1970 [4 July 1969J 33730/69 Heading F1R In apparatus for pumping fluids which comprises a vessel B containing as described a gas, connected by U-tubes D, E containing liquid, to vessels A1, A2 respectively, the gas within the vessel B is subjectable to a reduction and a subsequent increase in pressure relative to atmospheric pressure so that liquid is transferred from the vessel A1 via the vessel B to the vessel A2, the U-tube D acting as a valve during discharge of liquid from the vessel B to maintain the increased pressure therein. A number of vessels B, A may be arranged in a stepped sequence to form a multi stage pump, Fig.4 (not shown) or be arranged in the form of a column, Fig. 5 (not shown). The apparatus may e. g. be applied to generate electricity from the motion of the tides or be used to pump liquid requiring careful handling e. g. corrosive liquids or nitroglycerine.