baber/WOPTO huggingface dataset:
Patent GB-1086184-A (GB)
Title: Method of forming a fin between tubes
IPC: F22B37/10
Filed: 1964-12-14
Abstract: 1,086,184. Welding by fusion. FOSTER WHEELER CORPORATION. Dec. 14, 1964 [Dec. 24, 1963], No. 60895/64. Heading B3R. A pair of spaced parallel thin-walled tubes are joined by an integral fin formed in a single pass by fusion welding. The fin is formed by the fusion using a consumable electrode of a layer of granular metal which may include alloying ingredients and be mixed with fluxing ingredients, e.g. oxides of calcium, silicon, magnesium or aluminium, deposited between the tubes on a backing in the form of a layer of granular refractory material. The granular backing may be composed of oxides of titanium, aluminium, manganese or silicon, fireclay or sand. The fireclay or sand may be covered with powdered flux. Submerged arc welding may be used. The granular backing, filler and fluxing materials may be deposited automatically in front of the submerged arc welding torch. Tube panels may be built up by this method.
Patent GB-1417559-A (GB)
Title: Compressors
IPC: F04C28/02
Filed: 1972-11-06
Abstract: 1417559 Rotary positive-displacement compressors HYDROVANE COMPRESSOR CO Ltd and LOUGHBOROUGH UNIVERSITY OF TECHNOLOGY 5 Feb 1974 [6 Nov 1972] 51157/72 Heading F1F A rotary compressor comprising main and auxiliary sections 11,15 and 10, 14 delivering to a common outlet 22, 23 is unloaded, when the delivery pressure exceeds a predetermined value, by operation of valves 24, 25, 27, the valves 24, 25 restricting the inlets 18, 19 to the auxiliary and main sections and the exhaust valve 27 causing the delivery of the main section 11, 15 to be bypassed to a low pressure region such as the inlet 18 to the auxiliary section. The inlet valves 24, 25 are operated by servo devices (not shown) responsive to the delivery pressure in the outlet 22, 23, the main inlet valve 25 closing at the same, or higher, or preferably lower pressure than the auxiliary inlet valve 24. Operation of the exhaust valve 27 is either in direct response to the delivery pressure or in response to the increased suction in either inlet 18, 19 caused by closure of the valves 24, 25. During unloading the continuing delivery from the auxiliary section is prevented from entering the outlet 21 of the main section by non- return valves 26. The compressor is of the eccentric vane type having a sump for lubricating and sealing oil pressurized by the delivery from the auxiliary section and relief valves 28, 29 for draining oil from the inlets 18, 19 when the compressor is stationary.  In a second embodiment the compressor comprises an auxiliary section and several main sections, each section having an inlet valve and each main section a separate exhaust valve.
Patent GB-1415707-A (GB)
Title: Electrical circuit breaking arrangement
IPC: H01H33/915
Filed: 1973-11-05
Abstract: 1415707 Gas blast switches SIEMENS AG 5 Nov 1973 [3 Nov 1972] 51334/73 Heading H1N In a high voltage gas blast switch of the puffer type an auxiliary compression controlling piston 12 is provided within the gas blast cylinder 9 and arranged to be connected during different parts of the stroke to either the blast cylinder only or the blast piston only by a spring controlled rod 13. On circuit breaking the switch contact 6 slides in the direction of arrow 8 and carries the blast cylinder 9 with it so that gas is compressed between the blast cylinder and the relatively fixed blast piston 10 in combination with the auxiliary piston 12, the auxiliary piston 12 being fixed at this time to the blast piston 10 by rod 13 engaging aperture 14 in the blast piston. When end wall 21 of the blast cylinder reaches and operates plunger 20 however the rod 13 is moved under the influence of leaf spring 17 to engage aperture 15 in the blast cylinder and to simultaneously disengage from the blast piston, so that the auxiliary piston then is locked to the blast cylinder and moves with it to effectively reduce the gas compressing piston area. On circuit closing the auxiliary piston is disengaged again from the blast cylinder and engaged again with the blast piston. The gas employed is SF 6 .
Patent GB-513840-A (GB)
IPC: G03C7/14
Abstract: 513,840. Colour photography. LASSUS ST. GENIES, A. H. J. DE. Jan. 20, 1938, Nos. 1979 and 1980. Void. Convention dates, Jan. 22, 1937, and Dec. 28, 1937. [Class 98 (ii)] Colour photographs made or paper having surface formed by small pyramids, the facets of which are grouped,according to different orientations the facets of each group being perpendicular to an axis ir space, and the axes forming among themselves angles such that each group may be illuminated separately by ray: directed according to the corresponding axis. The pyramids may be produced by a matrix comprising an assembly of prismatic rods inclined anc fixed on a support, or of plates cut in sawtooth fashion which are inclined and fixed on a support. Partial images of a multicolour screen original may be copied on each group of facets through suitable filters, the successive partial copies being effected with different positions of the point light sources. In copying a lenticular original three light'sources may be used. As shown in Fig. 6, the lenticular original C is, pressedinto contact with the -paper F under the collimating lens D. The framework K may occupy three positions by rotation in its own plane each corresponding to a partial exposure. Similar apparatus is described for projection printing. Three objectives may be used for copying by:projection in one exposure. The copies may be viewed by filling the hollows with transparent varnish and illuminating with several monochromatic light sources, each acting on a different group of facets. The different groups of facets may be successively illuminated and the resultant images colour developed to colours of the additive synthesis. The images may be developed to silver, which is removed, and the groups of facets successively illuminated and colour developed to colours of the subtractive synthesis.
Patent GB-1415869-A (GB)
Title: Compounds of lead germanium and oxygen and the use of such compounds in electrical devices
IPC: C30B15/00
Filed: 1972-11-09
Abstract: 1415869 Delay lines DEFENCE SECRETARY OF STATE FOR 9 Nov 1973 [9 Nov 1972] 51699/72 Heading H3U [Also in Divisions C1 and H1] An acoustic surface wave device (plan view in Figure) includes a substrate 91 of modified lead germanate which has been conventionally "poled" to make it single domain. An input transducer 92 is attached to the top surface of the substrate 91 at one end of it and an output transducer 94 is attached to that surface at the other end of the substrate. The transducers 92, 94 are of the conventional two-part interdigital comb type. Signal leads 96, 97 are connected to the two respective parts of the transducer 92, and signal leads 98, 99 are connected to the two respective parts of the transducer 94. In action, when an alternating electric signal is applied to the transducer 92 via the leads 96, 97 an acoustic surface wave is produced by the transducer 92 in the top surface of the substrate 91. This wave travels across the top surface of the substrate 91 until it reaches the transducer 94. Here it is converted into an alternating electrical signal by the transducer 94. The alternating electrical signal is detected via the leads 98, 99. The acoustic surface wave device may be used as an electrical delay line.
Patent GB-1386842-A (GB)
Title: Cultivators
IPC: A01B33/08
Filed: 1972-03-07
Abstract: 1386842 Soil cultivators C VAN DER LELY NV 7 March 1972 [12 March 1971] 51985/73 Divided out of 1386841 Heading A1B The subject matter is that disclosed in Specification (1,386,841) but the claims relate to the mounting of the respective vertical shafts of the soil working members in the transverse beam. Reference has been directed by the comptroller to Specifications 1226679, 1266432 and 1277679
Patent GB-1092054-A (GB)
Title: Improvements in or relating to electrical thermal storage space heaters
Inventor: SAMBROOKE GEORGE
IPC: F24H7/02
Filed: 1964-12-23
Abstract: 1,092,054. Electric thermal storage space heaters. J. S. WEBB (HEATING) Ltd. Dec. 20, 1965 [Dec. 23, 1964], No. 52185/64. Heading F4U. An electric thermal storage space heater 9 comprises four storage elements 10 arranged side by side, each element being formed from two steel blocks 11 clamped around an electric heating element 32. The blocks 11 are mounted at the top by bolts 17 in a channel sectioned beam 12 which may be formed from sections corresponding in length to each element 10, and which is releasably suspended by rods 19 from a surrounding angle iron frame 20, through a metal plate 27 and refractory insulating block 29. The storage elements 10 are surrounded by insulating slabs 31 and an inner casing 30 having both lower cold air inlet apertures 35 covered by slidable dampers 39, leading to the air channels formed between the adjacent storage elements 10, and also upper hot air outlet apertures 36 having a spaced deflecting outlet baffle (36a). A decorative outer casing 54 mounted on base 52 and provided with air inlet and outlet grilles 51, 50 respectively surrounds and is spaced from the inner casing 30. In a modification (Fig. 2, not shown), the inner casing (30) and angle iron frame (20) are mounted in the cavity wall (43) of a house, having a layer of wall insulating material (44, 45) spaced from the back and side faces, a decorative panel (48) provided with inlet and outlet air grilles covering the front. If mounted in an interior wall, decorative panels will be used to cover both the front and back of the heater. Thermostatic switch gear (not shown) for " off peak " heating is mounted in the bottom space between the inner and outer casings.
Patent GB-1433190-A (GB)
Title: Surface sizing composition
IPC: D21H19/20
Filed: 1973-11-12
Abstract: 1433190 Styrene-maleic copolymers SANYO CHEMICAL INDUSTRIES Ltd 12 Nov 1973 [15 Nov 1972] 52471/73 Heading C3P Copolymers of styrene with maleic acid, maleic anhydride or a maleic half-ester, the copolymer having a carboxylic equivalent of 80 to 300 in the free carboxylic form, 5 to 50% of carboxylic groups being in alkali metal salt form and 95 to 50% of the carboxylic groups being in ammonium or C 1-3  alkylamine salt form, may be used in sizing compositions for paper. The copolymers may be derived from other monomers, e.g. vinyl acetate, α-olefins, acrylic and methacrylic acids, esters and amides, fumaric acid and vinyl chloride, in proportions of less than 60 mole per cent. The copolymers may be used in admixture with conventional sizing agents, e.g. rosins and petroleum resins, and modifiers, e.g. oxidized and enzyme converted starches and polyvinyl alcohol. Examples describe sizing agents comprising oxidized starch and sodium and ammonium salts of (1) maleic anhydride/styrene/methyl methacrylate copolymers and (2) partial n-butyl alcohol esters thereof; (3) potassium and ammonium salts of maleic anhydride/styrene/n-butyl acrylate copolymer; and (4) sodium and ammonium and (5) sodium and monoethylamine salts of maleic anhydride/styrene copolymers.
Patent GB-1189297-A (GB)
Title: Fire Detecting Apparatus
Inventor: LAWSON DENNIS ILLINGWORTH
IPC: G08B17/103
Filed: 1966-11-24
Abstract: 1,189,297. Fire detection. NATIONAL RESEARCH DEVELOPMENT CORP. Jan. 12, 1968 [Nov. 24, 1966], No. 52659/66. Heading G1A. In fire detection apparatus, a beam of electromagnetic radiation is directed through the space to be protected towards a detector, the movement of hot gases due to the fire causing refraction of the beam either toward or away from the detector. If the beam is normally (i.e. in the absence of fire) incident on the detector, movement of the beam away from detector, due to refraction, is sensed, to actuate an audible or visible alarm and/or fire control means. Alternatively, in the absence of fire the beam may not be incident on the detector, but refraction of the beam causes illumination of the latter and alarm or control actuation. The source of radiation, which may be a laser, may be located in line with the detector, e.g. a photo-cell, positioned on the opposite side of the space to be protected. A number of such systems can be used to protect a large space. A more economical arrangement utilizes a number of mirrors reflecting the laser beam along a zig-zag path towards the detector. In an arrangement in which the light of the beam is not normally, in the absence of fire, incident on the detector, the beam is of annular cross-section and surrounds the detector. The arrangement in which the detector is normally illuminated provides fail-safe operation. Movement of the hot gases may cause wavering of the beam.
Patent GB-1242847-A (GB)
Title: Improvements in spacing members
Inventor: SCOVELL GEOFFREY PHILIP ASHTON
IPC: B65D90/06
Filed: 1967-11-20
Abstract: 1,242,847. Spacing members. BAXENDEN CHEMICAL CO. Ltd. 18 Nov., 1968 [20 Nov., 1967], No. 52689/67. Heading B5N. A two walled structure is formed by placing one or more inflatable tubes between the walls and inflating the tube(s) temporarily or per-  manently so as to cause them to contact the sur-  faces and act as spacers therebetween. If necessary, the surfaces are restrained in position. The uninflated tube may be laid on one of the surfaces or attached thereto by elastic bands or by elastic threads which break when the tube is inflated. The tube may be inflated with air and the space around the tube between the walls may then be filled with polyurethane foam formed in situ after which the tube is deflated and may be withdrawn and the remaining space is filled with the foam so that the entire space between the walls is occupied by foam. If a permanent spacer is required the tube is attached to one of the surfaces by adhesive and inflated with a settable polyurethane foam forming composition, the space around the tube then being filled with foam. The tube may be slightly porous so that the foaming composition may ooze through and cause the tube to adhere to the wall. The tubes may be made of canvas fire hose and are sealed at one end by a plug, the open end extending beyond the walls to enable the fluid to be introduced after which the tube is sealed with a clamp. In an embodiment a flexible tube filled with a cured polyurethane is formed and then inserted between the walls.
Patent GB-1261287-A (GB)
Title: Improved process for removing carbon dioxide from gases
Inventor: PRIGENT MICHEL
IPC: C01B32/50
Filed: 1969-10-28
Abstract: 1,261,287. Electrolysis of carbonate solutions. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. Oct.28, 1969 [Oct.28, 1968], No.52774/69. Heading C7B. [Also in Division C1] CO 2  is extracted from a gas containing it by absorption in a solution of a base having a basicity constant in water of greater than 1 x 10<SP>-6</SP> at 20‹C., and the solution containing a salt of an acid having an apparent dissociation constant in water of greater than 4À31 x 10<SP>-7</SP> at 25‹C., the salt being non-reactive with respect to the base; the solution is then supplied to the anodic compartment of an electro-chemical cell that comprises anodic and cathodic compartments separated by means of a membrane which is at least semi-permeable to cations but not permeable preferentially to anions, and a voltage produced by means of a D.C. external generator being applied between the anode and cathode; CO 2  is liberated in the anodic department (but the salt is not electrolyzed), and the solution is recycled via the cathodic compartment to the CO 2  extraction zone. In Fig.2 carbonated solution from extraction column 2 is passed to anodic compartment 10 of cell 9 where oxygen is liberated on anode 12 which is a gas-electrode of the type used for oxidizing H 2  in fuel cells. After separation of CO 2  and O 2  in 7 the solution is passed to cathodic compartment 11 (separated by membrane 6 from anode 10) where H 2  and OH<SP>-</SP> ions are formed; the regenerated basic solution is recycled to column 2 via 8 where H 2  is extracted and led via duct 19 to compartment 20 on the rear side of anode 12 through which it diffuses and becomes oxidized in contact with electrolyte with consumption of OH<SP>-</SP> ions.
Patent GB-1410950-A (GB)
Title: Camera having exposure time control means
IPC: G03B7/08
Filed: 1972-11-16
Abstract: 1410950 Cameras KONISHIROKU PHOTO INDUSTRY CO Ltd 16 Nov 1972 [17 Nov 1971 17 Feb 1972] 53029/72 Heading G2A A camera has a diaphragm which is stopped down to a pre-set value on operation of the shutter release, and a photo-electric control circuit which receives light through the stopped down aperture and controls exposure time accordingly. The diaphragm value is set by a stepped cam detecting the position of a galvanometer pointer, the galvanometer being connected to a photo-electric element and being rotated an amount dependent on film speed and required shutter speed. The actual shutter speed determined photo-electrically may differ from the pre-set value to compensate for differences between the correct aperture and the aperture actually set. The shutter control circuit of Fig. 2 includes a photo-electric element P, a film sensitivity resistor R 1  and a memory capacitor C. In Fig. 3 R 1  is set according to desired exposure time as well as film sensitivity, a memory circuit memorizes the difference between this pre-set exposure time and the time determined by the element P and this difference is used to modify the pre-set time which is also set in on resistor R 2 . It is stated that since only the difference has to be memorized, the memory circuit can be simplified. In Fig. 8, the circuit includes a preamplifier Tr 1  Tr 2  Tr 3 , amplifying circuits A, B, C constructed to amplify signals in different parts of the measuring range and SCRs S 1  S 2  S 3  for selecting A, B or C. This enables exposure time to be controlled from 1 to 1/1000 sec without logarithmic amplification. Fig. 5 (not shown), shows the lens (1), diaphragm (2-9), reflex mirror (10), movable photo-cell (12), shutter (13, 14), and exposure aperture (15).
Patent GB-1485638-A (GB)
Title: Amplifier
IPC: G11C11/404
Filed: 1974-12-10
Abstract: 1485638 Amplifier INTERNATIONAL BUSINESS MACHINES CORP 10 Dec 1974 [20 Dec 1973] 53273/74 Heading H3T An amplifier comprises a constant current sink 14, a constant voltage source V interconnected by a pair of parallel circuit branches 10, 12 with each branch comprising a transistor 32, 44 connected between the voltage source and an output terminal with a capacitor 36, 48 connected between the control electrode of the transistor and the output and a second transistor 20, 22 connected between the output and the current sink, precharging means 38, 50 to simultaneously precharge the capacitors 36, 38 and means to apply differential input voltage to the control electrodes 56, 58 of the second transistor whereby, after the capacitors have been precharged, an amplitude differential voltage is produced across the output. The transistors and the precharging means may be FETs the last having in operation clock pulses #, and a constant voltage V1 applied to it. Each circuit branch can have a feedback, preferably A.C., path from the outputs to the control electrode of the second transistor, such as a capacitor 24 and an additional FET 66, to whose control electrode 68 a bias voltage, V REF , may be applied. A voltage providing means #3 is arranged to apply voltage to the additional transistor in a first period and zero volts in a second period. As shown the feedback is in the positive sense and when #3 is at ground the FET's 66 and 76 are set by the feedback. The amplifier may receive its differential inputs from memory cells 106, 116 and bit lines 58, 64 and means may be coupled to the circuit to restore the differential input signals into the memory cells during the second period.
Patent GB-1377976-A (GB)
Title: Process for preparing bituminous compositions containing plastic or elastomeric polysulphide polymers and compositions prepared according to the process
IPC: C08L95/00
Filed: 1971-11-19
Abstract: 1377976 Bitumen/polysulphide compositions SOC NATIONALE DES PETROLES D'AQUITAINE 19 Nov 1971 [20 Nov 1970 20 Oct 1971] 53849/71 Headings C3N and C3R A process for the preparation of bituminous compositions comprises adding to bitumen at least one un-crosslinked plastic or crosslinked elastomeric polysulphide polymer having a molecular weight of less than 20,000 and a sulphur polymerization degree of 2-200 and containing substantially no elemental sulphur, and which is capable of mixing with the bitumen, either by itself or in the presence of a fluxing oil, a bitumen, or a bitumen fraction. The polysulphide may be dispersed in fluxing oil, bitumen or a bitumen fraction comprising any of coumarone oils, polyindenic oils or polyolefin, other aliphatic or aromatic resins extracted from petroleum or coal oils, with which the polysulphide can react. Examples refer to the blending of bitumen which may be fluxed with (a) mercapto-ethyl adipate polysulphide optionally cross-linked with allyl maleate and dispersed in bitumen or flux oil; (b) mercaptoethyl thiodipropionate polysulphide dispersed in bitumen or flux oil; (c) dimercapto-diethyl formal polysulphide dispersed in bitumen or flux oil; (d) mercapto-ethyl adipate polysulphide dispersed in a petroleum resin or a coaloil resin; (e) LP3 polysulphide dispersed in a flux oil; and (f) mercapto-ethyl adipate polysulphide cross-linked with the reaction product of maleic anhydride and mercapto ethanol. Further examples describe the situation when the mercapto-ethyl adipate polysulphide crosslinked with allyl maleate or maleic anhydride/ mercapto ethanol reaction product is prepared in situ. The polysulphides used in the examples are prepared in further specific examples by reacting sulphur with:-a dithiol polysulphide (1); mercapto-ethyl adipate optionally with allyl maleate or the reaction product of maleic anhydride and mercapto ethanol (2); mercaptoethyl thiodipropionate optionally with propane trithiol (3); and dimercapto-diethyl formal optionally with allyl maleate (4).
Patent GB-1291936-A (GB)
Title: Process for producing a copolymer of tetrafluoroethylene and propylene
Inventor: TABATA YONEHO
IPC: C08F2/54
Filed: 1970-11-19
Abstract: 1291936 Tetrafluoroethylene-propylene copolymer ASAHI GLASS CO Ltd 19 Nov 1970 55087/70 Heading C3P Tetrafluoroethylene and propylene are copolymerized by subjecting the monomer mixture to free-radical producing radiation in a liquid medium which is capable of dissolving or swelling the copolymer. Preferred are fluoro and chlorofluoro-hydrocarbons, also specified is t-butyl alcohol. Gamma-rays, e.g. from cobalt 60, is the preferred radiation.
Patent GB-1441235-A (GB)
Title: Hydraulic control system
IPC: B62D11/18
Filed: 1974-12-20
Abstract: 1441235 Hydraulic control circuits O & K ORENSTEIN & KOPPEL AG 20 Dec 1974 [22 Dec 1973] 55198/74 Heading F1P In the circuit shown, Fig. 2, and with the valves in the positions shown, pressure liquid is fed to an actuator 8À1 from both pump 5 and pump 6 From the pump 6 liquid passes successively through valves 4, 3 and 2, a check valve 1À3 and the valve 1. To operate a second actuator, e.g. 8À3, Fig. 3, the valve 3 is moved to the position shown, in which liquid from the pump 6 is delivered to the actuator 8À3, the actuator 8À1 being supplied solely by the pump 5. Thus, any one actuator may be supplied by both pumps or any two actuators may be separately supplied.