baber/WOPTO huggingface dataset:
Patent GB-1461670-A (GB)
Title: Method of producing a hologram with an orthoscopic image
IPC: G03H1/00
Filed: 1974-12-19
Abstract: 1461670 Holography BBC BROWN BOVERI & CO Ltd 19 Dec 1974 [21 Dec 1973]  54913/74 Heading G2J A method of producing a hologram with an orthoscopic, at least partially real image of an object, comprises recording the object 3 on a first hologram 1, Fig. 1a (not shown), reconstructing the object 3(r) from hologram 1, Fig. 1b (not shown), and re-recording it on a second hologram 2, Fig. lc (not shown). To solve the problem of the final image 3(r)' disappearing suddenly when the observer's eye A move outside the angular range FF determined by the aperture of the first hologram 1, solid objects, (e.g. ground glass plates 4, 5 or holograms), are situated laterally of the wave field WI produced when the object 3 is reconstructed from the first hologram 1. The second hologram is taken so as to include the solid objects and the reconstructed object 3(r). The orthoscopic, at least partly real image 3(r)' is seen when a reconstructing beam Rek 2 illuminates the second hologram 2, Fig. ld (not shown), Fig. 2.
Patent GB-1244165-A (GB)
Title: Improvements relating to blowpipe burners
Inventor: SMITH WILFRED CECIL
IPC: F23D14/64
Filed: 1967-12-02
Abstract: 1,244,165. Blowpipe burners. WILLIAM ALLDAY & CO. Ltd. 27 Nov., 1968 [2 Dec., 1967], No. 54941/67. Heading F4T. In a blowpipe head, particularly for natural gas, having a burner tube 12 threaded in a body 11, pressurized air passes through a nozzle 15 in a chamber 13 in body 11 and into a Venturi tube 17 secured in tube 12, thereby entraining fuel gas, supplied to chamber 13 by a duct 16, through a converging annular gap between the complementary frusto-conical surfaces of the nozzle tip 22 and a mouth portion 18 of Venturi tube 17. The gas and air then pass through a cylindrical portion 21 of Venturi 17, with a diameter larger than that of the orifice of nozzle 15 but forming a passage of reduced diameter connecting chamber 13 to the main bore of tube 12, and through an internal baffle 28 in tube 12. The baffle 28 has a central coaxial bore 30 and three outer helical passages 31, defined by the flanks of a very coarse three-start V-section thread in baffle 28 and by the wall of tube 12, give the gas a swirling motion. The nozzle 15 is threaded in a bore 23 of diameter less than that of chamber 13 and which is supplied with compressed air from a duct 24 via a needle valve 25. Different sizes of the combined burner tube 12 and Venturi 17 may be screwed into the common body 11 for different applications.
Patent GB-1524116-A (GB)
Title: Container for foodstuffs or the like
Inventor: TUPPER EARL SILAS
IPC: B65D43/06
Filed: 1974-12-19
Abstract: 1524116 Container and lid TUP (PANAMA) SA 10 Dec 1975 [19 Dec 1974] 54988/74 Heading B8T A container having a peripheral wall 2 and an upwardly extending member 4 to define an internal or external channel with the wall 2 is provided with a lid having structure defining a double seal both with the rim 3 of the container wall 2 and with an upper edge of the member 4. Each seal may be of the kind described in Specification 1,416,686. The channel defined by the member 4 may be internal of the container Fig. 5 (not shown) and whether internal or external may be coated or filled with insect repellant substance. The lid may be provided with radial ribbing, Fig. 6 (not shown).
Patent GB-1327804-A (GB)
Title: Radiation-sensitive material for reproducing an image
IPC: C07C69/76
Filed: 1970-11-19
Abstract: 1327804 Phenyl-cyclobutenones KALLE AG 19 Nov 1970 [21 Nov 1969] 55064/70 Heading C2C [Also in Divisions C4 and G2] Compounds of Formula A in which R 1  and R 2  are hydrogen, halogen or alkyl and X is halogen, are prepared by reacting an appropriate aroyl halide with phenyl cyclobutene dione, optionally in the presence of a Lewis acid catalyst.
Patent GB-1467967-A (GB)
Title: Pipeline pressure surge relief system
IPC: F16L55/053
Filed: 1974-12-20
Abstract: 1467967 Valves GROVE VALVE & REGULATOR CO 20 Dec 1974 [26 Dec 1973] 55157/74 Heading F2V [Also in Division G3] A pressure surge relief system for a liquid pipe-line 10 has a relief valve 14 in a relief line 24 which valve is provided with a valve member 36 that is biased into closed position by gas pressure in a flexible bag 44. The gas pressure is regulated to follow that in the pipe-line 10 by a line 48 which communicates the liquid pressure to the outside of the bag and to a combined relief and regulating valve 50 for the gas. On electrical detection of a pressure surge in the pipe-line 10 at 70 a solenoid operated valve 76 is actuated to vent a chamber 80 so that valve 86 is closed to isolate the gas pressure loading the relief valve from the liquid pipeline prior to the surge passing the line 48 so that when the pressure surge reaches the relief valve 14 the valve member 36 is moved off its seat by the pressure surge to vent excess pressure.
Patent GB-1455703-A (GB)
Title: Electronic gain control circuit arrangement
IPC: H03G3/12
Filed: 1973-11-30
Abstract: 1455703 Gain control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Nov 1973 [21 Dec 1972] 55624/73 Heading H4R In a gain control circuit comprising a transistor long-tailed pair T3, T4 having the output path of signal transistor T6 in the tail and a load R1 in the output circuit of one, T3, of the transistors for providing an output signal in response to the signal applied to the signal transistor T6 and whose level is dependent on the relative voltages on the input electrodes of the transistors of the pair, the output electrode of the second transistor T4 of the pair is provided with a load R2 and D1 which is coupled via a negative feedback path to the signal transistor T6. The arrangement allows handling of a higher signal level relative supply voltage and gives a lower noise level under low gain conditions than the prior arrangement of Fig. 1 (not shown). The long-tailed pair T3 is cross-coupled with a second long-tailed pair T1, T2, to stabilize the D.C. level of the output with change in gain, and the feedback is direct coupled via transistors T7 and T8. Diodes D1 and D2 are both formed by transistors having their collectors and bases interconnected.
Patent GB-1165837-A (GB)
Title: Manufacture of Thermistor Assemblies
IPC: H01C7/04
Filed: 1967-12-07
Abstract: 1,165,837. Thermistors. GENERAL MOTORS CORP. 7 Dec., 1967 [8 Dec., 1966], No. 55638/67. Heading H1K. A thermistor assembly is made by coating the surface of a nickel substrate 10 with a layer 14 of thermistor material 1-10 mils. thick, heating the coated substrate to oxidize the surface thereby forming a nickel oxide layer 12 0.1-2 mils. thick which bonds the thermistor material to the substrate, and bonding two electrodes 13, 15 to the thermistor layer. The thermistor material, which may comprise equal molar quantities of cobalt oxide and manganese oxide with or without cupric oxide, nickel oxide or zinc oxide, is dispersed in a liquid vehicle and applied to the substrate by means of silk screen printing. The material sinters to a certain extent during the heating process. The electrodes are applied in the form of silver or platinum-gold ink and are bonded to the thermistor layer by heating. In a modification a resistor film is positioned on top of the thermistor layer, and in a further modification an insulating layer, preferably composed of colloidal alumina dispersion or equal molar quantities of zinc oxide, manganese oxide and iron oxide, is applied to the substrate before the coating of thermistor material. During the heating step the nickel oxide bonds to the insulating layer and the latter bonds to the thermistor material.
Patent GB-1379049-A (GB)
Title: Methods and apparatus for coating parts only of earthenware  articles
IPC: B05D3/04
Filed: 1971-12-03
Abstract: 1379049 Coating bricks or the like J C DAS 3 Dec 1971 [10 Dec 1970] 56163J71= Headings B2E and B2L Apparatus for applying coating material to certain areas of earthenwear articles such as bricks or tiles comprises a conveyor 1, a heater 2 for locally heating the areas to be coated and a coating head 3 for sprinkling coating material on the heated areas where it bonds or melts onto the articles. The areas to be covered are the upper surfaces of bricks 7 which have a low thermal conductivity and so no heat is transferred to other surfaces which do not require coating. Coating powder is fed from the head 3 by a perforated aerating pipe 5 which receives air from a blower 9. Air laden with excess powder is drawn in through tubes 10 and a filter 11 before being fed to the pipe 5. A post heating or coating stage 8 may be provided. Various types of coating distributor may be provided including vibrating hoppers or air jet powder or liquid coating means. The coating medium may be liquid or powder including cellulose acetobutyrate, polyethylene, nylon, epoxy and ceramic powders.
Patent GB-1407159-A (GB)
Title: Process fot the manufacture of chlorinated polyethylenes
IPC: C08F8/20
Filed: 1973-12-05
Abstract: 1407159 Chlorinated polyethylene HOECHST AG 5 Dec 1973 [11 Dec 1972] 56386/73 Heading C3P Powdered polyethylene of particle size 0À1- 300 microns is chlorinated in aqueous phase, at a temperature which for at least part of the time is above the initial cyrstallite melting point according to differential thermal analysis, in the presence of silicic acid, there being added before, during or immediately after chlorination 0À01- 1À0 wt. per cent, based on starting polyethylene, of a polysiloxane containing alkyl, aryl or aralkyl groups and having a polymerization degree of 10-10,000. The aqueous phase is preferably 10-30% hydrochloric acid. PVC may also be present or may be added to the product before drying. The process may be effected in two temperature stages. In examples the process is effected (1) in the presence of silicic caid treated with dimethyl polysiloxane oil, (2) with simultaneous addition of chlorine and dimethyl polysiloxane oil to a reaction mixture already containing silicic acid, (3) in the presence of silicic acid only, but with addition of dimethyl polysiloxane prior to drying of the product, and (4) as in (1) but with addition of PVC prior to drying of the product.
Patent GB-1157930-A (GB)
Title: Gas Turbine Jet Propulsion Engine
Inventor: TAYLOR PAUL ALFRED
IPC: F02C7/24
Filed: 1966-12-28
Abstract: 1,157,930. Gas turbine ducted fan engines. ROLLS-ROYCE Ltd. Nov. 8, 1967 [Dec.28, 1966], No. 57984/ 66. Addition to 1,127, 660. Headings FIG, F1J and F1T. The invention relates to a gas turbine ducted fan engine comprising a gas turbine type gas generator, a duct arranged to receive gases from the gas generator a free turbine mounted in the duct to be driven by the exhaust gases, the turbine having at least one rotor stage located in a substantially radially extending part of the duct, and a fan coaxial with the gas generator and driven by the free turbine, at least a portion of the duct being porous, there being means for passing cooling-gas through the porous portion and into the duct. The invention is described with reference to an engine which comprises a gas turbine type gas generator 5 the gases from which discharge through duct 6 and are directed by inlet guide vanes 10 on to a three stage outward radial flow power turbine 11. The turbine 11 is connected to drive a fan 13 located in a duct 4 defined between inner and outer casings 3, 2. The part 14 of the gas duct 6 is formed of porous material and a supply of air under pressure is taken from a compressor of the gas turbine gas generator 5 and supplied to the porous wall, the air passing through the wall into the gas flowing within the duct. The inner wall of the duct 6 may be also formed of porous material. The gas turbine type gas generator comprises low pressure and high-pressure compressor and turbine assemblies and the cooling air may be taken from the HP compressor.
Patent GB-1159940-A (GB)
Title: Improvements relating to Packaging of Food Products
IPC: C08L27/08
Filed: 1966-12-30
Abstract: 1,159,940. Plasticizing vinylidene chloride polymers. KUREHA KAGAKU KOGYO K.K. 30 Dec., 1966 [30 Dec., 1965], No. 58278/66. Heading C3P. Shaped articles for packaging food are prepared from a polymer of vinylidene chloride or a copolymer thereof having vinylidene chloride as the principal constituent, a non-toxic stabilizer, a natural or synthetic rubber and as plasticizer less than 20% based on the weight of polymer of a polyester formed from an aliphatic dicarboxylic acid having a C 2 -C 10  alkylene group and a C 2 -C 8  polyol and having an average molecular weight of 1,000-8,000. The chain ends of the polyester may be hydroxyl carboxyl or ester groups, the latter formed from monocarboxylic acids or monohydric alcohols. The vinylidene chloride may be copolymerized with other monomers, examples refer to vinylidene chloride vinyl chloride and vinylidene chloride-vinyl chloride-monobutyl itaconate copolymers. Also present may be a bis-phenol A-epichlorhydrin polycondensate or a butadiene-acrylonitrile copolymer.
Patent GB-1196430-A (GB)
Title: Grocery Cart with Inclined Bottom having a Front Opening Gate System Co-operating with a Counter having a Gate Opening Device
IPC: E04H3/04
Filed: 1967-12-27
Abstract: 1,196,430. Check-out counter. UNITED STEEL & WIRE CO. 27 Dec., 1967 [17 Jan., 1967], No. 58692/67. Heading A4T. A supermarket counter 13, Figs. 4, 22, has a sloping bottomed cart 11 wheeled against one end 22 with the wheels astride a platform 75, Figs 4, 7, 22. An operator moves pedal 36 and cable 98 to swing sprung levers 81, 82 through platform slots 76, 76 to abut the cart wheel supports and press the cart into close position to close limits witches 93, 94. A plate 68, Figs. 4, 22, engages loop 191 of a downwardly opening bottom cart gate 186, 196 held up by a torsion rod and releases gate latch 206, while a top, forwardly-hinged, front cart gate 157 attaches to magnet 41 on lever 37. Through a relay circuit the operator energises a motor at 44 which rotates an edge cam 42 moving lever 52 and a groove cam 49 moving lever 51. Lever 52 tensions cable 69 which via pulley 70, pivots at 64 plate 68 on lever 67 and the plate pulls gate 186 open downwards thereby releasing gate 157, the cable also, via link 102, holding tensioned cable 98 for release of pedal 36. Following this, lever 51 pulls cable 58, rotates lever and magnet 37, 41 clockwise and opens front gate 157. The cams momentarily actuate a limit switch which stops cam rotation and also stops a motor driving conveyer 19 preventing damage to goods sliding off the cart bottom. The operator then energizes motors driving horizontal conveyer 19 and rising conveyer 21, the latter carrying automatic variable height support flaps, whereby the goods are fed towards a checking point facing a cash register or electronic scanner. The circuit allows for closing the gates and releasing the cart. The front gate swings inwardly for nesting the carts, and a foldable baby seat compartment is provided.
Patent GB-1390468-A (GB)
Title: Herpes simplex type 2 virus vaccine and method of production  and use
IPC: A61K39/245
Filed: 1973-03-30
Abstract: 1390468 Vaccines RECHERCHE ET INDUSTRIE THERAPEUTIQUES 30 March 1973 58727/73 Divided out of 1390467 Heading ASB A temperature-sensitive, substantially non- pathogenic mutant strain of Herpes Simplex type 2 virus is obtained by contacting a pathogenic strain of the virus with a buffered aqueous solution of nitrous acid at pH 4-5. The treated virus may be separated, cultured in primary rabbit kidney cell culture at a temperature not exceeding 38‹C and the cultured virus worked up into vaccines suitable for intradermal administration in accordance with the parent Specification.
Patent GB-1431605-A (GB)
Title: Sheet stacking apparatus
IPC: B41L43/10
Filed: 1973-12-19
Abstract: 1431605 Delivering sheets XEROX CORP 19 Dec 1973 [29 Dec 1972] 58829/73 Heading B8R A sheet-stacking receptacle comprises an inclined base 205, Figs. 3, 4 and 9b, for supporting the face of the stack, a front wall 207 against which the leading edges of the sheets abut, the wall 207 being narrower than the body of the base, Fig. 4, and at each side of the wall a pivoted hexagonal plate member 262. Each sheet strikes the members 262 and causes them to swing forwardly, and as they return into contact with the top sheet the sheets are urged downwards thereby to avoid the sheets riding up the wall 207. A plurality of receptacles form an assembly supported by three cam followers 211, 211, 213 in helical cam grooves 221, 227 in cam members 223, 224, 225, whereby, as the cam members are intermittently rotated in response to the direction of sheets approaching the assembly, all the receptacles are moved upwards. The grooves are so constructed that at any given time the receptacles are arranged in groups of five separated by a gap larger than that between receptacles in a group, while at the zone where sheets enter the receptacles, a larger gap is formed. Each receptacle carries a pivoted arm supporting a roller which rests on the stack in the receptacle below. By delivering one sheet formed from each original in a xerographic copying-machine into each receptacle, returning the receptacles to their lowest position, and repeating the process for each original, collated sets are obtained.
Patent GB-1377770-A (GB)
Title: Apparatus for visual projection and sound reproduction
IPC: G03B31/06
Filed: 1971-12-29
Abstract: 1377770 Audio-visual apparatus S SATO 29 Dec 1971 [31 Dec 1970 27 Nov 1971] 60431/71 Heading G5R A tape cassette incorporating a slide or transparency for projection is transported to a station where it is played back and projected and is then ejected. As shown, each stroke of a solenoid 8 having its plunger 8<SP>1</SP> secured to a perforated plate 5 engaging a pawl 12 on a sliding carriage 10 causes the leading cassette in a horizontal stack 3 to fall down a passage 21 to a playback-and-projection station where it engages a spring-loaded stop 26 and closes a microswitch. A solenoid 45 pulls in a member 31, which opens a shutter over the projection aperture and thrusts two rotatable shafts 33a, 33b through the tape-carrying hubs (3c, 3d), Fig. 4 (not shown), of the cassette and into two hubs (34<SP>1</SP>, 35<SP>1</SP>), Fig. 3 (not shown), of the drive train contained in the apparatus housing 1. This drive train, including a capstan (39) mounted on a flywheel 40, and a magnetic head (57) are brought into operative position by the lateral movement of a plate (48) under the action of a further solenoid (50), so that the tape is driven by an electric motor 42 and is played back while the slide or transparency is projected. When the end of the tape is reached, detection of its increased tension initiates rewinding of the tape followed by release of the cassette and its ejection through an opening 70 on to three guide rods 78a-78c by movement of a plate 74 under the action of a solenoid 77.
Patent GB-1358158-A (GB)
Title: Buildings
IPC: E04B1/343
Filed: 1969-12-12
Abstract: 1358158 Prefabricated room units Z BORYS 19 April 1971 [12 Dec 1969 29 June 1970] 60876/69 and 31475/70 Addition to 1226107 Heading E1A In a prefabricated room unit including traylike wall sections 1, 4 (see Fig. 6) adapted to form a container for transportation of the contents &c of the room unit as disclosed in Specification 1226107, the wall elements incorporate a load-bearing framework. The room units may be connected to end wall elements 10 by tongue-and-groove interengagements interlocked by rotatable locking means, see Figs. 3, 7 and 8 of the accompanying drawings (not shown) and likewise connected to tray-like ceiling elements 9. The steel framework is connected to lifting blocks 33 and is clad with a skin of glass-fibre reinforced plastics whilst plywood or other cladding is used for the floor, internal walls or ceiling. A flexible weatherseal is used between the joints and caps used to cover the locking means. The room units may be stacked to form a multistorey building with the loads transmitted between the framework and the blocks 33, connections between superimposed units being effected by means of projecting studs, twist locks or tie rods for details of which Figs. 15-18 (not shown) of Provisional Specification 1226107 should be referred to. The room units may be provided with cupboards, furniture and service fittings and ductings as deemed necessary. Again, the room units may incorporate corridors, balconies, verandahs, balustrades, stairways &c as required, see especially Fig. 12, 13 of the accompanying drawings and Figs. 11, 12, 13 of Provisional Specification 1226107. The services included may comprise drainage, mains water, rain water, electricity, telephones, lighting, wells hatches, and rails and a trolley for maintanence purposes, service junctions being also provided - see for example Figs. 10, 11 and 12 (not shown) of Provisional Specification 1358158. The room units may be furnished having living accommodation, hospitals or offices in mind or used to house electrical sub-station equipment, generators or air-conditioning plant, see for example, Fig. 9 (not shown), of the accompanying drawings. The room units may be mounted on foundation units and have their service fittings connected to corresponding fittings in the foundation units for details of which the drawings, (not shown), accompanying Specification 1358158, should be referred to. For innumerable other minor details concerning joints, services, dimensions, applications and constructional desiderata the Specification and various drawings (not shown), accompanying the complete and Provisional Specification 1358158 should be referred to.
Patent GB-1271758-A (GB)
Title: Improvements in turbine rotor blade erosion shield attachment
IPC: F01D5/28
Filed: 1969-12-15
Abstract: 1,271,758. Making turbine blades; welding by fusion. GENERAL ELECTRIC CO. 15 Dec., 1969 [7 Feb., 1969], No. 60988/69. Headings B3A and B3R. [Also in Division F1] A steam turbine blade having an erosion resistant shield 7 at the leading edge has a shim 8 interposed between the shield 7 and the blade body 3, the components being welded together to produce a ductile weld. In one arrangement blade body 3 is a stainless steel alloy, shim 8 a nickel-base chromium iron alloy and shield 7 a cobalt-base chromium tungsten alloy, the components being electron beam welded together. In a modification, body 3 is a titaniumalloy containing aluminium and vanadium and shim 8 pure titanium previously diffusion bonded to a shield 7 of the above specified composition. In a further arrangement, the latter shield 7 is replaced by a titanium base alloy including tin, aluminium, molybdenum and silicon electron beam welded to the shim 8. T.I.G. welding may be used in some cases.