baber/WOPTO huggingface dataset:
Patent GB-1111475-A (GB)
Title: Elevator link and process of making the same
IPC: E21B19/06
Filed: 1966-05-02
Abstract: 1,111,475. Boring earth, &c. BYRON JACKSON Inc. 2 May, 1966 [7 June, 1965], No. 19278/66. Heading E1F. [Also in Division B3] An elevator link comprises an elongated ring having generally parallel side sections spaced from each other at opposite ends to provide openings, the side sections being adjacent to each other intermediate the openings to provide a shank section, a welded joint in at least one of the side sections in the shank, and weld means extending continuously between the openings on both sides of the shank the ring being formed of a metal having a grain structure oriented substantially parallel to the elements of the ring.
Patent GB-1533287-A (GB)
Title: Treating calcium nitrate in a used nitrogen oxide(s)absorption liquid
IPC: C01F11/46
Filed: 1976-05-11
Abstract: 1533287 Treating used absorption liquid KOBE STEEL Ltd 11 May 1976 [12 May 1975] 19298/76 Heading C1A A method of treating calcium nitrate in a used aqueous nitrogen oxide(s) absorption liquid containing calcium nitrate and calcium chloride comprises: (A) adding concentrated sulphuric acid to the used absorption liquid to obtain an aqueous mixture including nitric acid, hydrochloric acid, sulphuric acid and calcium sulphate and adjusting, if necessary, the quantities of chloride ions and nitrate ions in the mixed solution so that Cl<SP>-</SP>/NO 3 <SP>-</SP> is from 2 to 3; (B) heating said aqueous mixture to 110 to 150 C. after adjusting, if necessary, the concentration of the sulphuric acid in the aqueous mixture to 10 to 70% by weight, to drive off a mixed gas including at least NOCl, C1 2  and nitrogen oxides; (C) passing the mixed gas through concentrated sulphuric acid which has a concentration of 80% by weight or more and is maintained at a temperature of 80 to 150 C. to obtain a mixed gas containing chlorine and hydrogen chloride and a nitrosylsulphuric acid solution; (D) introducing a mixed gas of (S0 2  + H 2 O) into the nitrosylsulphuric acid to form sulphuric acid and a mixed gas of (NO + NO 2  + SO 2 ); and (E) introducing the mixed gas of (NO+ NO 2 +SO 2 ) into a reducing solution to convert nitrogen oxides to N 2  gas. In a modification of the invention, steam and air are introduced into the nitrosylsulphuric acid solution formed in step C to produce nitric acid.
Patent GB-381238-A (GB)
Title: Brown acid azo dyestuffs
IPC: C09B29/28
Filed: 1931-07-06
Abstract: Dyestuffs yielding full brown shades on wool are obtained by diazotizing 1-naphthylamine-2-sulphonic acid and coupling with 1 : 5-aminonaphthol in acid or alkaline medium.
Patent GB-1511906-A (GB)
Title: Recirculation of exhaust gases of an internal combustion engine
IPC: F02D21/08
Filed: 1975-05-08
Abstract: 1511906 Exhaust gas recirculation in IC engines REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 8 May 1975 [16 May 1974] 19505/75 Heading F1B Exhaust gas is recirculated, without passage through a valve, to an I.C. engine induction pipe 2a, air being admixed therewith before admission to the conduit in such a way as to control the flowrate of the exhaust gas. Exhaust gas from exhaust manifold 3a flows via pipe 6a to a point 8a immediately upstream of throttle valve 4a when in its substantially closed position, air being admitted to the pipe 6a by way of a pipe 9a and a valve device 10a. A vacuum chamber 14a is connected to the inlet pipe 2a via an electromagnetic valve 18, when a temperature sensitive switch 26 is open (i.e. at normal engine operating temperature) and, when switch 26 is closed (during warming up), is connected via the valve 18 to a vacuum reservoir 21. With the throttle valve 4a substantially closed, the vacuum downstream thereof or in the reservoir 21 holds valve 11a of valve device 10a fully open so that air-flow through pipe 9a is as high as possible and therefore, exhaust gas flow via pipe 6a is as low as possible. Below normal operating temperature, switch 26 is closed and valve 11a is held wide open for all settings of the throttle valve 4a by vacuum in reservoir 21 acting in chamber 14a. The air flow-rate is thus a maximum for the particular setting of the throttle valve and correspondingly the exhaust gas flow-rate is a minimum. When normal operating temperature is reached, switch 26 opens, so that chamber 14a is connected to pipe 2a and the opening of valve 11a is dependent upon throttle opening, being gradually reduced as the throttle 4a is opened. With the throttle 4a in its idling position, the pressure drop from 16a to 8a is small so that air-flow is small and exhaust gas recirculation is only moderate. Opening throttle 4a so that its edge crosses the opening at 8a increases the pressure drop and, therefore, the air flow-rate through pipe 9a reaches a maximum and the proportion of exhaust gas in the mixture entering induction pipe 2 is relatively low. Further opening of the throttle 4a causes the opening of the valve 11a to be reduced so reducing the air flowrate and increasing the exhaust gas recirculation. In Fig. 1 (not shown), the reservoir 21 and electromagnetic valve 18 are omitted so that the apparatus behaves throughout in the way that that shown in Fig. 2 does at normal engine operating temperatures.
Patent GB-889132-A (GB)
Title: Improvements in or relating to hobbing machines
IPC: B23F23/04
Filed: 1958-06-18
Abstract: 889,132. Gear-cutting. PFAUTER, M., PFAUTER, W., and PFAUTER, H., [trading as PFAUTER, H., [Firm of]]. June 18, 1958 [June 19, 1957], No. 19513/58. Class 83 (3). A machine tool, such as a hobbing machine, comprises means for engaging a blank and a finished workpiece simultaneously to transfer them to working and unloading positions respectively. The gear-blanks and gears are carried to and from the machine on pins 2 on a chain 32. A vertically reciprocable head 10 carries a head 6 containing a wedge 8 movable to operate jaws 7, 7<SP>1</SP> through levers 9, 9<SP>1</SP>. Blanks are loaded at position 50 where a pivoted gauge checks that they are correctly located. If the blanks are upside down, the gauge actuates a switch to stop the machine. The blanks are subsequently checked at the loading station by a toothed gauge which can only be operated correctly to allow the machine to continue to operate if it engages an untoothed surface. When a gear has been hobbed, the hob slide is rapidly retracted. The head 6 is lowered and a blank and a finished gear are gripped. The work is automatically released from its centres. The head 6 is then raised, rotated by an hydraulically operated rack, lowered and releases the gear and blank. In a modified gripping head 19, Fig. 10, the work-holding jaws 62, 62<SP>1</SP> are actuated through gears 63, 63<SP>1</SP> by gear segments 25, 25<SP>1</SP> oscillated by pins 24, 24<SP>1</SP> engaging cam grooves in an axially movable rod 66.
Patent GB-811714-A (GB)
Title: Improvements in or relating to a separator of an alkaline electrolytic system
IPC: H01M50/429
Filed: 1955-07-06
Abstract: A semi-permeable sheet for use in an alkaline battery comprises a mixture of methyl cellulose and an electrical resistance-lowering agent, in the form of a gel with an abundance of ionogenic groups, which is resistant to oxidation and to alkaline solutions.  The resistance-lowering agent is preferably a water-soluble alkali salt of a high polymer, e.g. a salt of alginic acid (present in a proportion between 10 and 200 per cent by weight of the methyl cellulose) or of sulphonated polystyrene (present in a proportion between 10 and 1000 per cent of the methyl cellulose).  A glycol plasticizer may be added to the sheet mixture before casting.  The term "alkali" in the Specification embraces ammonium as well as the alkali metals.
Patent GB-435796-A (GB)
Title: Synthetic resins and their applications
IPC: C08G8/28
Filed: 1934-03-21
Abstract: Oil soluble resinous materials are prepared by condensing formaldehyde with a chlorinated di- or trinuclear phenol having at least one but not more than two substitutable reactive positions, and at least three non-aromatic carbon atoms, one of which is directly joined to at least three carbon atoms and is directly joined to a benzene ring in one of the o- and p-positions to the phenolic hydroxyl group.  Suitable phenols include di(4-hydroxy-3-chlorophenyl)dimethylmethane, di(4 - hydroxy - 3-chlorophenyl) - methylethylmethane, di(4-hydroxy - 3 - chlorophenyl) - propylmethane, di(2 - hydroxy - 5 - chlorophenyl) - dimethylmethane, and di(2-hydroxy-5-methyl-6-chlorophenyl)-phenylmethane.  In an example di(4-hydroxy - 3 - chlorophenyl)diphenylmethane is condensed with formaldehyde in the presence of caustic soda and the product is blended with chinawood oil and thinned with mineral thinner and aromatic hydrocarbons to yield a varnish.  The products may be blended with cellulose derivatives such as nitrocellulose, cellulose acetate, benzyl cellulose and ethyl cellulose; natural resins and ester gums such as rosin, kauri, copal, and rosin glyceride; synthetic resins or synthetic resin forming material such as metastyrene, coumarone - indene resins, amine-aldehyde resins, acrylic ester resins, vinyl resins, casein plastics, polyhydric alcohol-polybasic acid condensation products not modified with drying oils or drying oil acids; bitumens such as asphalts; waxes such as beeswax, candelilla wax, montan wax, carnauba wax and lauryl stearate; other ester-like bodies such as stearin, castor oil, hydrogenated castor oil, tricresyl phosphate, dibutyl phthalate, triethylin, animal fats and waxes; pigments; solvents; plasticizers; antioxidants; fillers and lakes for use in the manufacture of coating compositions, moulding plastics, impregnating agents for paper, wood, cloth, stone or rubberized fabrics, adhesives for safety glass, linoleum, adhesives, cements, sealing waxes, insulating materials together with mica or asbestos and laminated sheet or tubes from cellulose derivatives such as cellulose acetate.  Specification 435,762 is referred to.  Di(4 - hydroxy-3-chlorophenyl)dimethylmethane is obtained by chlorinating the parent body in solution in carbon tetrachloride by means of a solution of chlorine in carbon tetrachloride.
Patent GB-474933-A (GB)
Title: Improvements in or relating to electric discharge devices with indirectly heated cathodes
IPC: H01J19/38
Filed: 1936-07-15
Abstract: 474,933. Thermionic valves. M-O VALVE CO., Ltd., DUKE, S. M., and LE ROSSIGNOL, R. July 15, 1936, No. 19669. [Class 39 (i)] Relates to indirectly heated thermionic discharge tubes having at least one control grid, and consists in forming the grid as a tortuous tube adapted to be cooled by fluid flowing through it with members of high thermal conductivity extending between some pairs at least of the adjacent lengths of the tube. As shown, the grid comprises a number of hair-pin shaped tubes 8 through which fluid is circulated in parallel from annular channels 9, 10 with inlet and outlet pipes 11, 12. The members of high thermal conductivity are formed by a helix of copper wire 13 wound about the tubes. The cathode 1 is a nickel cylinder coated with alkaline earth material and mounted on wires 2, one of which serves as a lead. The heating element 5 is fed by wires 6. The cathode cylinder is slotted at each end as at 7 to prevent buckling and is supported, through an insulated rod 3, from a plate 4 to which the tubes 8 are soldered at their bends.
Patent GB-773266-A (GB)
Title: Improvements relating to motor cycles
IPC: B62K25/28
Filed: 1955-07-07
Abstract: 773,266. Motor cycles. ZUNDAPP-WERKE GES. July 7, 1955 [July 10, 1954], No. 19676/55. Classes 79(2) and 79(3). In a motor cycle having the engine unit 1 held at its output end in a rubber-bushed mounting in the frame 4 the rubber bush 2 surrounds the output shaft of the unit and has an extension 2<SP>1</SP> which overlaps and seals one end of a swinging arm 10 carrying the driving wheel (not shown) and surrounding a propeller shaft 9. As shown, the engine unit 1 is also mounted on the frame 4 by a rubber ring 3 and the rubber bush 2 is conical, the bush 2 being arranged in a similar shaped eye in a cross member 5. The shaft 9 is connected by a universal joint 8 to the output shaft of the unit 1, and the member 10 is one of the pair of wheel suspension arms adapted to pivot in the directions of the arrows about the transverse axis of the universal joint 8.
Patent GB-1335176-A (GB)
Title: Trimmer potentiometer having means for lead screw misalignment compensation
IPC: H01C10/40
Filed: 1972-04-27
Abstract: 1335176 Variable resistors SPECTROL ELECTRONICS CORP 27 April 1972 [12 Nov 1971] 19704/72 Heading HIS A variable resistor comprises a housing 10 in which is journalled a lead screw 13. The lead screw may be inserted ultrasonically in a thermoplastic housing. Terminal means 17 are provided to make electrical contact with a resistance element 33 (Fig. 2) deposited on a substrate 12. The substrate is secured and sealed in the housing e.g. by staking and potting with epoxy resin 18 which may also form a vapour seal. A collector element 34 is also deposited on the substrate. Wiper body 15 includes pairs of flexible ribs extending transversely to the axis of the body. The flexibility of the ribs is such as to allow continual rotation of the lead screw even when the wiper body has reached the end of its travel. Pairs of resilient protuberances 50 and 51 are formed on the shoulders of either the wiper or the housing body and extend by an amount greater than the distance between these shoulders such as to urge the wiper into firm sliding engagement with the substrate. The protuberances, which may be of conical or hemispherical shape, may be formed integrally with the wiper from e.g. a plastic material. Typically they will be approximately 5/1000 inch in height for a ¥ inch long trimmer potentiometer.
Patent GB-1497855-A (GB)
Title: Fire-retardant intumescent putty
IPC: C09K3/10
Filed: 1976-05-13
Abstract: 1497855 Intumescent putty compositions DAINICHI-NIPPON CABLES Ltd 13 May 1976 [16 May 1975 22 Sept 1975] 19732/76 Heading C3P A composition comprises (a) at least 4% of a non-hardening organic material in a liquid or semi-solid state at room temperature and having a viscosity of 50 to 100,000 cSt at 210‹ F., and (b) at least 13% of a phosphate of formula wherein 0<X/Y#3 and n is 1-14, one of all of the hydrogen atoms of which are substituted with a nitrogen containing group and containing at least 7% of P. Suitable materials (a) are polybutene, polyisobutylene, polybutadiene and suitable materials (b) are melamine phosphate and ammonium polyphosphate. The composition may contain other conventional ingredients for intumescent compositions such as pentaerythritol, dipentaerythritol, melamine, grease, asbestos and glass fibre, and glass microballoons.
Patent GB-422478-A (GB)
Title: An attachment for ink bottles and the like
IPC: B43L25/00
Filed: 1933-07-12
Abstract: 422,478. Bottles; ink receptacles. BAKER, J. S. ST. B., 41, Boleyn Road, Dalston Junction, London. July 12, 1933, No. 19750. [Class 146 (iii)] [See also Group XVII] A dispensing attachment par ticularly for large-sized ink bottles comprises a cylindrical or like receptacle having an inter nally-screwed flange for attaching it to the neck of the bottle, anc means for placing it into anc out of two-way communication with the interior of the bottle and provided with a stopper to enable it to be charged on inverting or tilting the bottle. The attachment may comprise a receptacle 1 screw-threaded for attachment to the ink bottle 3 and provided with a stopper 13 at one end, while the other end is in two-way communication with the bottle by means of the vertical tubes 7, 8, which terminate just below the stopper 13. The receptacle 1 is filled by inverting the bottle, but for pouring purposes, the stopper 13 is removed and ink passes out through the tube 8, air passing into the bottle through the tube 7. In a modification, the receptacle 1 is mounted on a cap member which is screwed to the bottle, the receptacle being held thereon by a flanged member which screws on to the cap, so that the receptacle 1 is rotatable relatively to the bottle. The cap piece and receptacle are each provided with two apertures which by rotating the receptacle can be put into and out of communication. The receptacle and cap member may be constructed in one piece, a valve, adjustable from the exterior, being provided between the reservoir 3 and the interior of the cap piece. The cap piece can be used independently of the receptacle 1 as a pour-out for filling ink pots &c.
Patent GB-1137144-A (GB)
Title: Method and apparatus for measuring absorption of electro-magnetic radiation
Inventor: WILLIS HARRY ARTHUR
IPC: G01B11/06
Filed: 1966-05-04
Abstract: 1,137,144. Polarizers. IMPERIAL CHEMICAL INDUSTRIES Ltd. April 12, 1967 [May 4, 1966], No. 19754/66. Heading G2J. [Also in Divisions B2 and G1] In apparatus for measuring the thickness of a film by measuring the absorption of infrared radiation passed through the film, the radiation is incident upon the film at an angle such that any radiation being doubly reflected by the surfaces of the film is polarized in the plane of incidence and a polarizing element is provided to remove any radiation polarized in that plane. The polarizer may be a transmission polarizer comprising two or more films of selenium or silver chloride or, where the radiation is made to pass twice through the film, a selenium reflection polarizer.
Patent GB-889209-A (GB)
Title: Improvements in or relating to heating and atomizing devices for conditioning an atmosphere
IPC: F24F6/12
Filed: 1959-06-09
Abstract: 889,209. Treating a gas with a liquid; furnace atmospheres. REGIE NATIONALE DES USINES RENAULT. June 9, 1959 [July 21, 1958], No. 19772/59. Classes 51 (2), 55 (1) and 55 (2). [Also in Group XXIX] Apparatus for charging a gas with the vapour of a vaporizable liquid in a predetermined ratio comprises an atomizer for atomizing the liquid by means of the gas to be charged with vapour which during operation is supplied under pressure to the atomizer, and a tubular body in axial alignment with the nozzle of the atomizer and having a heating element located in close vicinity to the wall of the tubular body for vaporizing liquid projected by the gas into the tubular body. As shown in Fig. 2 the apparatus has a liquid atomizing device comprising an outer cylindrical body 1 carrying a nozzle member 4 at one end and threaded at the other end to receive a nut 7 mounted on a tube 3 inserted in the body 1, the tube 3 being locked in a desired position by a nut 6. The tube 3 is open to atmosphere at one end and at the other carries a liquid injection nozzle 12 releasably held in position by an apertured nut 13 and supplied with the liquid to be atomized through a tube 11. The gas under pressure enters at 9 and a suspension of liquid in the gas leaves the orifice of the nozzle member 4 passing into the tubular body 16 arranged in axial alignment with the nozzle member and surrounded by a heating element 17 whereby the liquid in the gas is vaporized. In a modification the heating element may be located inside the tubular body. The apparatus may be used to produce a mixture of nitrogen and methyl alcohol vapour suitable for producing by cracking at between 250‹ and 600‹ C. a carbo-nitriding atmosphere or a mixture of air and steam for supply to a gas producer.
Patent GB-1461593-A (GB)
Title: Electric storage batteries electrical interconnections
IPC: H01M50/529
Filed: 1973-04-26
Abstract: 1461593 Electrical interconnections in batteries LUCAS BATTERIES Ltd 4 April 1974 [26 April 1973] 19823/73 Heading H1B [Also in Division B3] In making electrical interconnections between battery plates 13 in adjacent cells of a storage battery box 11 having partition walls 12 with conductive lugs 14a, 15a extending from battery plates in adjacent cells to adjacent holes in partition walls, a conductive connector 17 or connectors extends between the lugs of two adjacent cells, a pair of resistance welding electrodes 34, 35 are located adjacent the lugs and current is passed between them to weld the lugs and connector or connectors together, the box is moved relatively to the electrodes in a first direction and then in a second direction at right angles to the first direction to position a further pair of lugs adjacent the electrodes, these lugs and their connector or connectors are welded together and the steps are repeated until all the required interconnections are produced. A lead slug 17, in an embodiment, having a tapered end is passed through a hole in each lug and in the partition wall, the ends of the slug projecting slightly from the end surfaces of the lugs. When slugs are in position in each connection point, the connection points being alternately adjacent opposite side walls, the box is positioned on a roller conveyer 23, Fig. 6, at a feeding station. The box is then fed along the conveyer to move along a guideway 42 provided by two members 43, 44 until it reaches a work stop. A platform 31 is then automatically raised by a ram 32 to project ribs on the platform between the rollers 23 to engage and lift the box towards the resistance welding tool 18 where the first connection is welded. The platform is then automatically retracted and the guideway 42 is moved laterally by a ram 40, the work stop is retracted and the box is advanced by the rollers to bring the next connection, adjacent the other side wall, beneath the electrodes. The box is again raised and the next connection is welded. All the connections are similarly made with further boxes being fed from the feeding station. Instead of a separate slug for each connection each lug 14 and/or each lug 15 may have an integral projection.
Patent GB-793676-A (GB)
Title: Selective drive hubs
Inventor: REQUA ROY
IPC: F16D11/16
Filed: 1956-06-27
Abstract: 793,676. Shaft couplings. FREE LOCK CORPORATION. June 27,1956, No. 19923/56. Class 80 (2). Means for connecting a wheel hub freely mounted for rotation about a drive-shaft to a splined tubular member secured to the shaft, comprises a tubular housing attached to the hub and carrying one or more radially movable clutch pawls which can be moved into engagement with the splines by a cam member rotatable externally to the tubular housing. A driveshaft 15 for a front wheel drive unit of a vehicle is within an axle casing 17 carrying a freely rotatable wheel hub 16 thereon. A housing member 22 and a tubular housing member 25 are secured to the hub 16 by bolts 26, both these housing members having radial notches 33, 35 in which are located flat portions 34 of a series of radially movable pawls 39 having teeth engageable with splines on a tubular member 21 rigid with the end of the shaft 15. A circular hub 29, rotatable by a spanner, is formed with cam members 38 which co-operate with slots in the flat portions 34 to advance the pawls into locked engagement with the splines, or to hold the pawls out of engagement. In a second embodiment, Fig. 10, the pawls 48 are moved inwards by cam surfaces 52 which have concentric portions 52A to retain the pawls in the engaged position. The pawls are moved radially outwards by pins 50 co-operating with curved slots in the cam member 51. To assist the easy engagement of the pawl teeth the slots in the member holding the pawls may have tapered sides as at 58.