baber/WOPTO huggingface dataset:
Patent GB-1320354-A (GB)
Title: Gas burning appliance
IPC: F24H9/20
Filed: 1970-10-23
Abstract: 1320354 Safety device for gas burners SAUNIER DUVAL 23 Oct 1970 [24 Oct 1939] 50540/70 Heading F4T A gas burning appliance has a safety device comprising a first temperature-sensitive electrical contact 4, located to be heated and thereby opened or closed by combustion products diverted from a normal path to an outlet 1 of the appliance, and a normally closed second temperature-sensitive contact 5 adjacent a heating resistance 7 supplied with current when the first contact is opened or closed to cause the second contact 5 to be opened, thereby closing dcwn the appliance. In Fig. 1, resistance 7 is in parallel with contact 4 and when the latter opens current heats the resistance to open contact 6. In Fig. 2 (not shown), contact 4 and resistance 7 are in series so that closing of the contact causes the resistance to heat to open contact 6. Opening of contact 6 cuts the electric supply to electrical controls and/or pumps of the appliance. In Fig. 1, close down may occur before contact 6 opens, because of current supply to the appliance being reduced by having to flow through resistance 7.
Patent GB-505904-A (GB)
Abstract: 505,904. Purifying mineral oils. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Nov. 17, 1937, No. 31630. [Class 91] [Also in Croup IV] Tetrahydrofuranes are used as solvents in refining hydrocarbon oils.
Patent GB-1494647-A (GB)
Title: Pharmaceutical composition
IPC: A61K31/165
Filed: 1974-11-22
Abstract: 1494647 Pharmaceutical compositions CRC COMPAGNIA DI RICERCA CHIMICA SA 22 Nov 1974 50752/74 Heading A5B A pharmaceutical composition comprises a compound of the formula:- in which R<SP>1</SP> is H or a halogen atom or a nitro group; R<SP>2</SP> is H or C 1 -C 4  alkyl; R<SP>3</SP> is C 1 -C 4  alkyl, benzyl or substituted benzyl and A is a protective group; together with a pharmaceutical carrier or diluent.
Patent GB-1149692-A (GB)
Title: Improvements in the manufacture of sockets for electrical plug and socket connectors
IPC: H01R13/40
Filed: 1966-11-15
Abstract: 1,149,692. Making sockets. SMITHS INDUSTRIES Ltd. 15 Nov., 1966 [15 Nov., 1965; 24 March, 1966], No. 51097/66. Heading B3A. [Also in Division H2] A socket for an electric plug is made by deforming a middle section of a cylindrical tube to form plug engaging strips 3a, 3b, 3c joined by corners which are cut out to form slots 4a, 4b, 4c which separate the strips. The slots 4a, 4b, 4c are preferably parallel to the axis of the tube but may have a slight inclination to the axis. The tube is deformed by external pressure, for example, by punches (15a), (15b), (15c), Fig. 4 (not shown). The slots 4a, 4b, 4c do not extend along the whole deformed section in order to provide projections 6b which engage a step 17 in the holder 7. The other end section is outwardly flanged to secure the socket in the holder. In an alternative embodiment of the socket for flat-faced plugs, Figs. 10-13 (not shown), the tube is deformed in its middle section to form two strips (13d), (13e). The corners between the strips are cut away to provide slots (4d), (4e) and the strips may have a convex region (d), (e) to provide resilient engagement with the plug. This socket has projections (6e), (6d) to hold the socket in a holder (7). The same type of socket may be adapted for round plugs, Figs. 14-17 (not shown), by providing an inwardly directed groove (3f), (3g) on each strip. The end of the socket remote from the projections may be held resiliently in the holder by making a portion of the end non- circular (23a), Fig. 18 (not shown).
Patent GB-1535104-A (GB)
Title: Electrodes for electrolysis
IPC: C25C7/02
Filed: 1976-12-10
Abstract: 1535104 MnO 2 -coated electrodes DIAMOND SHAMROCK TECHNOLOGIES CORP 10 Dec 1976 [10 Dec 1975] 51580/76 Heading C1A [Also in Division C7] An electroysis electode has a conductive base coated with #-MnO 2  made by thermal decomposition of an alcoholic (e.g. C 1-4  alkanol) solution of Mn(NO 3 ) 2 . The solution may contain water and is desirably free of SO 4 , Cl and PO 4 . Up to 20% of the coating may be replaced by SiO 2 , SnO 2  and/or #- PbO 2 . Up to 5% total of a metal of Groups IB, IIB, IVA, VA, VB, VIB, VIIB or VIII (excluding Pt metals, Au and Ag) may also be included. Such modifications are effected by adding thermally decomposible compounds to the coating solution. Coating involves heating at 200-500 C. in an oxygenic atmosphere while avoiding total conversion of MnO 2-x  to MnO 2  with e.g. up to 40 successive coating applications. An intermediate layer of a Pt metal and/or a Pt metal or valve metal oxide may be applied e.g. RuO 2 .TiO 2 . The base may be a valve metal or alloy (e.g. Ti with up to 5% Co or Mn), graphite or FeSi, and may be grit blasted and pickled before coating. The coating may be bombarded with #-radiation (e.g. from P u <SP>304</SP>) before use, and is useful as an anode in electrowinning from acid sulphate solutions (in which case it may contain Co) and in perchlorate production (when it may contain As, Sb or Bi).
Patent GB-1250038-A (GB)
Title: Hydrocracking process
IPC: C10G47/00
Filed: 1969-10-24
Abstract: 1,250,038. Hydrocracking. SUN OIL CO. 24 Oct., 1969 [19 Nov., 1968], No. 52133/69. Heading C5E. Lube oils are made by hydrocracking a feed comprising a lube oil charge stock and 5-80 volume per cent of a diluent of viscosity 0À15- 17 centistokes at 100 F. Suitable diluents are hexane, heptane, naphtha, fuel oil and 60 S.U.S. neutral oil. Suitable feeds having initial boiling points of at least 650 F. are waxy and dewaxed vacuum distillates, deasphalted or Duo-Sol extracted residuum, and waxy and dewaxed deasphalted residua. The hydrocracking can be carried out at 650-875F. with a hydrogen partial pressure of 500-10,000 p.s.i. using a catalyst comprising at least one oxide or sulphide of Ni, W, Co or Mo on an alumina carrier. The catalyst can be used in two or more beds so that the feed can be fractionated and fed so that the heavier fractions can undergo more severe cracking. The lube oil products can be hydrogenated, extracted with furfural or rehydrocracked.
Patent GB-1308499-A (GB)
Title: Method for making foamed thermoplastic structures
IPC: B29C35/02
Filed: 1970-11-03
Abstract: 1308499 Moulding foamed articles HERCULES Inc 3 Nov 1970 [9 Dec 1969] 52255/70 Heading B5A [Also in Division C3] A thermoplastics shaped structure having a foamed core 10 and an unfoamed solidified skin 16 is made by a process comprising introducing pellets of a thermoplastics material containing a thermally decomposable blowing agent into a mould 12, heating the mould to melt the pellets and activate the blowing agent so that the molten mass so formed expands, cooling the mould thereby forming an unfoamed solidified skin adjacent the mould surface and opening the mould by a predetermined increment (as shown diagrammatically in Fig. 4) so that the still mobile core within the skin expands further and foams to form a foamed core bonded to the solidified skin. The shaped structure may be removed from the mould by completely opening the mould. In Fig. 6 the mould 20 is fitted with a tongue and groove construction 22 and 24, so that, in the position shown, although the article has increased in width due to expansion of the molten mass, it is held to a true undistorted surface due to complete contact throughout the surface of the mould cavity, the tongue and groove construction enabling the mould to be opened a predetermined increment while all external surfaces of the article remain intact against the surface of the mould cavity which may be smooth or have a textured finish. Suitably, the thermoplastics material is heated to from 150 to 380‹ C. Polymers of mono-olefins having 1-8 carbon atoms are preferred, especially polyethylene and polypropylene. Specified blowing agents include ammonium carbonate, N, N<SP>1</SP>-dinitrosopentamethylenetetramine, sodium bicarbonate, azodicarbonamide, 4, 4<SP>1</SP>oxy-bis-(benzenesulphonyl hydrazide), azobisisobutyronitrile benzene-1, 3-disulphonyl hydrazide, diazoaminobenzene and barium azodicarboxylate, which may be used in proportions of 0À05 to 10% by weight of the thermoplastic moulding material. The production of a polypropylene panel is exemplified, and the application to car trims, surf boards, water skis, building blocks and insulated containers is mentioned.
Patent GB-1124290-A (GB)
Title: Improvements in coin testing devices
Inventor: WILLETTS DERYK PAGE
IPC: G07F1/04
Filed: 1964-12-24
Abstract: 1,124,290. Coin-freed mechanisms. W. & T. AVERY Ltd. 23 Dec., 1965 [24 Dec., 1964], No. 52481/64. Heading G4V. In coin-freed mechanism such as a personal weigher an inserted coin guided to a coin-shoot 8 along a concave channel 13 in fixed guide 10 is supported in a plane at between 10 and 60 degrees to the vertical by an upper guide 16 pivoted at 17, undersize coins and most rubbish falling through the gap between the guides in to a space 9. Rubbish which may have jammed between the guides is freed on pivoting of the upper guide by an inserted coin being thrust in, and, e.g. lollipop sticks pass out through an aperture 25 in the shoot 8. A finger 28 pivots into the path of the coin to prevent it from sliding down the channel 13 while the guide 16 is pivoted upwardly.
Patent GB-1278875-A (GB)
Title: Improvements in and relating to power take-off trucks
IPC: B62D49/06
Filed: 1970-11-05
Abstract: 1278875 Agricultural vehicle MASCHINENFABRIK SCHILTER & CO 5 Nov 1970 [25 Nov 1969] 52711/70 Heading B7H An agricultural vehicle in which the driver's station 32 is situated laterally adjacent the engine block 22 and between the front and rear axle housings 11, 2, the rear housing 2 being rigidly connected to a chassis frame 1 or to the gear housing 23 and block 22, the front and rear wheels of the vehicle being approximately the same size and the vehicle having hydraulic powered lifting linkages 35, 36 for the attachment of working implements, the arrangement being such that the ground clearance beneath the engine and driver's station is approximately equal to that beneath the axle housings. Both the front and rear axles may be driven via transfer gearing 24 and drive shafts 25, 26, and power take-off shafts 30, 31 are driven via transmission 27 and shafts 28, 29. All four wheels may be steered through hydraulic rams 9 and 20. The front axle housing may be mounted on a yoke 12 pivoted by pins 13 and 14 to the chassis frame or may be pivotally mounted directly on to the engine block.
Patent GB-1210379-A (GB)
Title: Improvements in or relating to overhead electrical conductor shields
IPC: B60M1/04
Filed: 1967-11-21
Abstract: 1,210,379. Electrical conductor shields. ACIERIES DE GENNEVILLIERS ANCIENS ETABS. C. DELACHAUX. 21 Nov., 1967 [21 Nov., 1966], No. 52916/67. Heading B7L. A shield, for an overhead electrical conductor 1 supported by insulated hangers 2, has a cross-section of inverted generally U-shape and comprises a rigid central part 3 of T-crosssection made of vacuum-formed polyvinyl chloride, the stem of which has a channel 3a to straddle and engage the heel portion la of the conductor, and two flexible side wings 4 made of extruded polyvinyl chloride and curved by hotforming, the wings having beads 4a to engage in channels 3b along the edges of the central part 3. The parts 3 are each of a length to fit the gap between hangers 2 but the wings 4 are each of a length to span several parts 3.
Patent GB-1245057-A (GB)
Title: Improvements in or relating to automatic guidance systems
IPC: G01C15/00
Filed: 1969-10-30
Abstract: 1,245,057. Automatic guidance. SIEMENS A.G. Oct.30, 1969 [Oct.31, 1968], No.53160/69. Heading G3R. Two photo-sensitive detectors which move with a tool are arranged one on each side of a laser beam spread out to form a reference plane and are so maintained by applying the outputs of the detectors to a differential amplifier which controls the position of the tool. As applied to a drainage plough, two photo-cells are fixed relative to the plough share so that when the latter is at the required depth they are on opposite sides of a horizontal plane formed by a laser beam spread out by a cylindrical lens or rotary scanning mirrors. The outputs of the photo-cells are applied to the inputs of a differential amplifier controlling the depth of the plough share, selective filters responding only to the frequency at which the beam is modulated or scanned to eliminate interference e.g. from the sun. Additional photo-cells, spaced further apart, may be arranged to give warning or stop the machine if displacement of the machine becomes excessive. Automatic control along a line defined by the intersection of planes formed by two laser beams, modulated at different frequencies, which may be derived from a single source by beam splitting, is referred to.
Patent GB-1464146-A (GB)
Title: Hydraulic jet looms
IPC: F04B53/16
Filed: 1974-12-09
Abstract: 1464146 Reciprocating pumps ELITEX 9 Dec 1974 [10 Dec 1973] 53192/74 Heading F1A A pump for a hydraulic jet loom, has a spring- or gas-loaded piston 20 or diaphragm (23), Figs. 2 and 3 (not shown), communicating with the pumping chamber, the pump piston 1 having a groove 15 communicating with the pumping chamber via passages 13, 14 and communicating alternately with inlet and outlet ports 17, 18 in the cylinder during operation. The piston is reciprocated by a cam 10 via roller 9 and spring-loaded lever 5. The spring- loading on piston 20 is adjustable by nut 22. In Fig. 2 (not shown), a single, spring-loaded diaphragm (23) communicates with the pumping chamber. In Fig. 3 (not shown), a pair of diaphragms (23, 25) with an air cushion between them communicate with the pumping chamber, the cushion being adjustable by a valve (27), and the diaphragm remote from the pumping chamber being engaged by an adjustable loading member (28).
Patent GB-1079660-A (GB)
Title: Improvements in or relating to hydrogen generators
IPC: C01B3/04
Filed: 1965-12-16
Abstract: A generator for producing H2 from NH3 comprises a dissociation retort wherein NH3 is dissociated by heat, a purifying unit whereon H2 is separated from dissociated ammonia at a temperature lower than the temperature of the dissociated ammonia (1200-1700 DEG  F.) emerging from the retort, a first and a second conduit for conducting dissociated NH3 from the retort, means for cooling dissociated ammonia in the first conduit, preferably by heat-exchange with NH3 being conducted to the retort, to a temperature (about 500 DEG  F.) lower than the temperature at which hydrogen is separated from dissociated NH3 (840 DEG  F.), means for mixing dissociated NH3 from the first and second conduits in a proportion, preferably controlled by thermostatically controlled valves dependent on the temperature of the dissociated NH3, to produce a predetermined resultant temperature of the mixture, and a third conduit for conducting dissociated NH3 from both the first and second conduits to the purifying unit which is preferably a Pd alloy membrane.  The generator may also include a vaporizer for vaporizing liquid NH3, and conduit means for conducting H2 and the remainder of the dissociated NH3 from the purifying unit through the vaporizer and out of the generator.
Patent GB-1162894-A (GB)
Title: A Slip Winder for a Camera
Inventor: KARIKAWA TORU
IPC: G03B17/30
Filed: 1967-11-28
Abstract: 1,162,894. Friction clutches. ASAHI KOGAKU KOGYO K.K. 28 Nov., 1967 [16 Dec., 1966], No. 54159/67. Heading F2C. [Also in Division G2] A shaft 2, turned by a winding knob 1, has secured to it a gear-wheel 3 which engages shutter-tensioning mechanism, and also winds on the film by means of a gear-wheel 5. A slip device enables the film wind to terminate while the tensioning wind continues. A spring 11 is coiled round part of the shaft 2. One end life of the spring lies in a groove 10a at the end of a shaft 10 carrying a film spool driving member 7. The other end 11a lies in a groove 6a in a ring 6 which retains the gear-wheel 5. When the winding shaft 2 is rotated, with the spool shaft under load, this tightens the spring so that it grips the shaft 2. Shaft 10 is thus rotated without slipping, as is also ring 6 and gear 5. When the predetermined length of film has been wound, gear 5 is held and stopped. Groove 6a thus stops and holds end 11a of the spring. Further winding of shaft 2, to complete the shutter tensioning, causes spring 11 to be loosened, so that it no longer grips shaft 2, and so shaft 10 is no longer rotated by end 11b. The device is of use in cameras in which the amount of rotation required for the take-up spool is not constant, due to the increasing thickness of the layer of film wound on to it.
Patent GB-1254384-A (GB)
Title: Printed circuit boards
Inventor: COOKE REGINALD BEJAMIN WILLIAM
IPC: H05K3/06
Filed: 1969-11-05
Abstract: 1,254,384. Double sided printed circuit board. STANDARD TELEPHONES & CABLES Ltd. 5 Nov., 1969, No. 54282/69. Heading H1R. A double sided epoxy glass fibre or paper phenolic printed circuit board 5 with holes is produced by covering both surfaces with a bonded copper foil 6; drilling holes 7; immersing it in an electroless copper plating bath; electroplating with a copper layer 8; plating with a tin/lead coating 10 inside and adjacent the holes, using a land pattern mask (Fig. 3) exposing only the land areas 10; and etching away the exposed copper not covered by a track pattern (Fig. 2) with an etchant which does not attack tin/lead. The respective patterns are produced by covering board 5 with a photo-resist (9, Fig. 4) and exposing it to either the land or track pattern as appropriate, and developing. Components may be flow soldered to the lands 10, the rest of the board being covered by a solder resist.
Patent GB-1175990-A (GB)
Title: Benzene Production.
IPC: C10G65/12
Filed: 1967-11-29
Abstract: 1,175,990. Benzene; toluene; treating pyrolysis gasoline. AIR PRODUCTS & CHEMICALS Inc. 29Nov., 1967 [16 Dec., 1966], No. 54359/67. Heading C5E. Benzene is produced from pyrolysis naphtha containing polymerizable unsaturates, e.g. dripolene, by contacting a vaporized mixture of the feed and a hydrogen-containing gas in a first reaction zone with sulphided cobalt molybdate or sulphided nickel cobalt molybdate under conditions effecting hydrogenation of the polymerizable unsaturates, contacting the effluent from the first zone with chrome-alumina catalyst in a second reaction zone under hydrocracking conditions, thus effecting cracking of non-aromatics and dealkylation of alkylaromatics, separating the effluent into vapour and liquid phases, and recovering benzene from the liquid phase. Suitable conditions for the hydrogenation are: inlet temp. 204-343 C., pressure 42-84 kg./sq. cm. gauge, LHSV 0À1-5À0, hydrogen to oil mole ratio 1-12, and the catalyst may be supported on alumina. Sulphur may be added to the hydrogenation feed, e.g. as CS 2  or a mercaptan. Suitable conditions for the hydrocracking are: outlet temp. 593-650 C., pressure 56-84 kg./sq. cm. gauge, contact time 30-180 seconds, hydrogen partial pressure 17À5-49 kg./sq. cm. gauge, and inlet hydrogen to total aromatics mole ratio 3:1-10:1. Either reaction may be conducted in several reactors, with cooling between successive reactors. The recovered liquid phase is stabilized by removal of hydrogen and light hydrocarbons, clay treated and fractionated to recover benzene. Unconverted products and by-product diphenyl may be recycled to the hydrocracking, though if desired toluene may be recovered as product. The recovered gaseous phase may also be recycled as part of the hydrogen-containing gas to the first stage.
Patent GB-1166518-A (GB)
Title: Improvements in or relating to Gas Separation Processes
Inventor: PETERS WERNER
IPC: B01D53/047
Filed: 1967-11-29
Abstract: 1,166,518. Separating oxygen and nitrogen. BERGWERKSVERBAND G.m.b H 29 Nov., 1967 [8 Dec., 1966], No. 54381 /67. Heading B1L. Mixtures of oxygen and nitrogen, suitably. air, are separated into fractions enriched in oxygen and nitrogen by fractionally and preferentially adsorbing the mixture on oxidised or unoxidised natural coal at 2-40 atmos. pressure, desorbing a first nitrogen-enriched fraction at 5-100, preferably 10-30, mm. Hg until the composition of the desorbate has approximately the same composition as the original mixture and then collecting a second oxygen-enriched fraction under the same desorbing conditions. The adsorption and desorption steps are both suitably carried out at 50‹ to -60‹C., preferably 0-25‹C. The adsorbent coal is suitably used in a particle size of 0.1-0.5 mm., and is preferably a coal which has been oxidised at 150-200‹C.
Patent GB-1073696-A (GB)
Title: Automatic record player
IPC: G11B17/28
Filed: 1963-12-13
Abstract: 1,073,696. Juke boxes. J. FOUFOUNIS. Dec. 13, 1963 [Dec. 13, 1962], No. 64681/66. Divided out of 1,073,695. Heading G5R. The description is substantially the same as that of Specification 1,073,695 but the claims differ.
Patent GB-1431468-A (GB)
Title: Apparatus for severing heated tubular thermoplastic material
IPC: B29C49/78
Filed: 1973-11-27
Abstract: 1431468 Cutting tubular extrudate; blowmoulding BELOIT CORP 27 Nov 1973 [29 Nov 1972] 55011/73 Heading B5A Apparatus for severing heated tubular thermoplastic material transverse to its axis comprises a pair of elongate shear members on either side of the tube axis, the edges of the shear members being parallel to each other in a plane transverse to the tube axis, and means to move at least one of the shear members along a path diagonal to the edge of this shear member, the edge of both shear members being maintained parallel throughout the movement so that a shearing force is applied to the material in a direction transverse to the tube axis. Tubular extrudate (5, Fig. 1, not shown) is continuously extruded from head (3) of extruder (1) and severed by means (7) to form a parison (9) which is enclosed between blow-mould halves (11a, 11b) and blow-moulded in cavity (11c) thereof. Means (7) comprises shear members (13, 15), one-of which (13) carries a knife (17) so that the lower end of the extrudate (5) is clamped and sealed. In the embodiment of Fig. 2, sides 19, 23 of a parallelogram linkage 19, 21, 23, 25 carry shearing members 13, 15 and knife 17. Corner 27a is maintained in a fixed position by link 31 and opposite comer 27c is connected to piston-rod 33 of cylinder 37. In an alternative embodiment, Fig. 4, shearing members 13<SP>1</SP>, 15<SP>1</SP> are connected across links 211, 231 and 19<SP>1</SP>, 25<SP>1</SP>, respectively, being connected thereto by a fixed pivot 39 or 45 at one end and at the other, by pivots 41, 47 sliding in slots 43, 49 thereof as the shearing is effected.
Patent GB-1302280-A (GB)
IPC: G03C11/04
Filed: 1970-11-20
Abstract: 1302280 Photographic silver eradicating process FUJI PHOTO FILM CO Ltd 20 Nov 1970 [21 Nov 1969] 55366/70 Heading G2C The silver image on a photographic print is eradicated by applying to the print an aqueous thiourea solution and then an aqueous persulphate solution.
Patent GB-1364448-A (GB)
Title: dock-boards
IPC: B65G69/28
Filed: 1971-11-24
Abstract: 1364448 Loading ramps J S SIEDER 24 Nov 1971 [24 Nov 1970] 55883/70 Addition to 1170745 Heading B8H The two-section loading ramp, for bridging the gap between a railway wagon and a loading surface, described in the parent Specification 1,170,745 is modified in that the retaining arms, which are adapted to pivot outwardly to engage behind the door posts of the wagon, are so mounted on the ramp as to leave the ramp surface unobstructed. As shown, each retaining arm 10 is pivotally mounted by means of a pin 17 on a plate 11 which is secured to the outer surface of the wall 13 of the ramp section 14b. A disc 23 is slidably mounted in a slot 19 in the arm 10 and is urged by a spring 21 against a square-section lug 16 secured to the plate 11 whereby the arm is retained in any of the positions a, b, c. In a modification, Fig. 6 (not shown), the lug 16 is formed with a rounded nose to provide two stable positions of the arm,