baber/WOPTO huggingface dataset:
Patent GB-1441739-A (GB)
Title: High-temperature sensing elements
IPC: G01K1/08
Filed: 1975-02-20
Abstract: 1441739 Semi-conductor devices SIEMENS AG 20 Feb 1975 [21 Feb 1974] 7221/75 Heading H1K A temperature sensing device has a conductor body 1 with a negative temperature coefficient in an oxidizing atmosphere 7 within a sealed quartz housing 2, current being supplied to the body 1 by leads 3 of Mo fused into the housing wall and leads 4 of Pt inside the housing. As shown, the Pt leads 4 are connected to contacts 5 on the body 1 which is a bead of metal oxide or a mixture of such oxides. The or each oxide may be of a rare earth metal. A quartz support rod 6 separates the leads and is held in place by pinched-in areas 9, 10 of the quartz tube 2. External leads 8 may also be of Mo.
Patent GB-1203051-A (GB)
Title: Improvements in or relating to photographic light-sensitive silver halide materials
Inventor: WILLEMS JOZEF FRANS
IPC: C07D285/16
Filed: 1967-02-15
Abstract: 1,203,051. 051. Photographic silver halide materials. GEVAERT-AGFA N. V. Feb. 6, 1968 [Feb.15, 1967], No.7252/67. Heading G2C. Also in Division C2] A photographic light-sensitive silver halide material, having reduced tendency to yellowing, contains in a non-light-sensitive water-permeable colloid layer at least one organic compound containing a mercapto group or a thioxo group having thioxo-thiol tautomerism, a group rendering the compound fast to diffusion such as an aliphatic radical with 8 to 20 carbon atoms in a straight chain and a group rendering the compound watersoluble or alkali-soluble. Compounds specified include alpha-mercapto-stearic or palmitic acid, N-(2 -hexodecyloxy-5-sulphophenyl)-2 -mercaptoethyl urethane or a heterocyclic nitrogen-containing thione containing a carboxylic or sulphonic acid group and a long-chain alkyl group such.as a 1:2:4-triazoline-thione, a benzimidazolinebenzthiazoline- or benzoxazoline-thione, a thiadiazolinethione or a tetrazoline-thione containing such groups. The colloid layer may be an antistress layer coated over the emulsion which may by an X-ray emulsion. The emulsion may contain the usual additives and may include mercury compounds as stabilizers.
Patent GB-621684-A (GB)
Title: Improvements in photographic film spools
IPC: G03B17/30
Filed: 1946-03-08
Abstract: 621,684. Photographic film spools. GEVAERT PHOTO-PRODUCTEN N. V. March 8, 1946, No. 7287. Convention date, June 7, 1941. [Class 98 (i)] A photographic film spool comprises a core having an aperture extending diametrically for the introduction of the end of the film, and a spring blade within the core having a part projecting across the aperture towards the opposite wall with its end extending in a trailing direction relatively to the direction of insertion of the film so that a backward pull on the film results in the spring blade having a tightening action on the film. As shown, the slot has a narrow opening 2 for the introduction of the film on one side and a wider opening 8 on the other. The spring 3 is a metal strip bent at an angle of about 95 degrees, and is held in a narrow slot 10 parallel to the wall 1 of the film slot by means of teeth 5 embossed or cut in the strip and gripping the sides. The end of the film is introduced between the spring and the wall 1, which may be roughened, and is gripped against retraction by the edge 9 of the spring, which may be serrated.
Patent GB-1435888-A (GB)
Title: Process for the reduction of iron ores and apparatus for carrying  out said process
IPC: C21B13/10
Filed: 1975-02-21
Abstract: 1435888 Ore reducing furnaces VEREINIGTE OSTERREICHISCHE EISEN UND STAHLWERKE ALPINE MONTAN AG 21 Feb 1975 [22 Feb 1974] 7315/75 Heading F4B [Also in Division C7]  Apparatus for reducing iron ore comprises a rotary kiln discharging into two hearth furnaces arranged in series, the three units being gastightly connected so that all exhaust gases are discharged through the kiln. In the particular embodiment described kiln 3 fired by burner 15 discharges into the first of two hearths (7, 8) formed in a common shell which is arranged to tilt about the axis of the kiln. The hearths are each provided with a tapping spout 18, and are separated by a weir 19 which is downwardly stepped on the side remote from the spout whereby by tilting in one direction slag or metal can be discharged, and by tilting in the other metal can be transferred from the first to the second hearth. The first hearth is heated by burners 9 or electrodes 17 to melt the charge, while in the second hearth slag-forming additions from hoppers 11, 13 are melted by electrodes 12 and the bath is then blown with oxygen from lance 14.
Patent GB-1073721-A (GB)
Title: Microporous plastics material
Inventor: GILLIBRAND JAMES
IPC: C08J9/30
Filed: 1964-02-21
Abstract: A microporous plastics material is made by beating air into a plastisol of (a) a vinyl chloride polymer, (b) from 50-125% by wt. of a plasticizer having at least two benzene rings in the molecule, based on the wt. of the polymer, and (c) a foam stabilizer.  Suitable plasticizers are trixylyl phosphate, butyl benzyl phthalate and diethylene glycol dibenzoate.  A foam stabilizer is dodecyl benzene calcium sulphate.  An additional plasticizer, n-butanol, water and finely divided silica may also be present. Conventional mixing machines are used in the beating step.  The composition may be used to coat fabrics (see Division B2).ALSO:Fabrics are coated with a microporous plastics material which has been prepared by beating air into a plastisol of (a) a vinyl chloride polymer, (b) from 50 - 125% by weight of a plasticiser having at least two benzene rings per molecule and (c) a foam stabilizer.  The coating may be effected by a doctor knife or by reverse roller coating.  A waterproofing emulsion may be further coated upon such a coated fabric.  In an example a fluorocarbon emulsion is used for this purpose.
Patent GB-471905-A (GB)
Title: Improvements in and relating to vessels or receptacles for heating liquids
IPC: C10C1/04
Filed: 1936-03-11
Abstract: <PICT:0471905/III/1> In a container for heating liquids such as a tar still having at least one internal flue, the end walls are elastically strained together when the apparatus is cold by at least one of the flues passing through the container.  In making the container the flue may be heated so as to increase its length before being secured in place.  This is effected by plugging the ends of the flue and either injecting steam or inserting a gas burner.  When the whole apparatus becomes cold the flue will then have contracted and will strain the end walls together.  In an alternative method the end walls are strained together by mechanical means before the flue is finally secured in place.  The still is cylindrical and provided with internal and external flues arranged as in a Lancashire steam boiler. The internal flues are formed with flat parts 15 which form a top ridge 14.  Transverse ribs 16 act as stiffeners and a firebrick 18 is provided as an insert.  This shape of the flue reduces the extent to which sediment is deposited on top thereof.
Patent GB-1134503-A (GB)
Title: Pneumatic information-transfer system
IPC: B65G51/04
Filed: 1966-02-19
Abstract: 1,134,503. Pneumatic tube information conveyer systems. A. FREEMAN. 16 Feb., 1967 [19 Feb., 1966], No. 7388/66. Heading B8A. The carriers of a pneumatic conveyer system for transmitting information from different sections of a factory to a central control section each comprise a short cylindrical body 11 which is formed with projections 14, co-operating with grooves 16 in the tube 15 to prevent rotation of the carrier, and with frames 12, 13 for holding a ticket 17 having three columns 18-20 of punched holes, the columns 18, 20 representing coded information and the column 19 being a succession of regularly spaced holes representing resetting means for the scrutinizer at the control section. The scrutinizer comprises three photo-electric cells 24-26 and three light sources 21-23. The carrier is provided with light baffles 28. The ticket 17 may be provided with additional coded information in the form of projections 29 which are adapted to actuate micro-switches in the scrutinizer and which extend into further grooves 30 in the tube 15.
Patent GB-282245-A (GB)
Title: Improvements in and relating to leather and like thong cutting apparatus
IPC: C14B5/04
Filed: 1927-03-17
Abstract: 282,245. Lee, E. C. March 17, 1927. Addition to 262,993. Stationary-cutter machines. -In the machine for cutting thongs of the parent Specification, a mass W<3> is applied to the centre of the disc x of leather to maintain the disc flat.
Patent GB-174873-A (GB)
Title: Improvements in speed-reducing or speed-multiplying gears
IPC: F16H1/32
Filed: 1921-03-11
Abstract: 174,873. Beasley, C. H. March 11, 1921. Toothed gearing.-Relates to reducing or other gearing of the kind comprising a rotating gear such as g driven by a cam such as d. Teeth of V-shape are employed to distribute thrust over a number of teeth, and three ball-bearing rings e, f, i are arranged parallel to the middle lines of the gear teeth, to support these. The gear g is supported at its centre on a spherical support j projecting from a driven shaft c<1> and is kept from rotating by lugs k engaging fixed slots k<1>. The balls f are supported in a groove in the back of the gear g and engage the flat face of the cam d secured to the driving-shaft b<1>. The rings e, i are between the walls of a fixed casing a and the cam d and driven gear h respectively.
Patent GB-609393-A (GB)
Title: Improved leads for ignition systems
IPC: H04B15/02
Filed: 1946-03-13
Abstract: 609,393. Electric cables; couplings. DUNLOP RUBBER CO., Ltd., and BULGIN, D. March 13, 1946, No. 7781. [Classes 36 and 38 (i)] An electric lead suitable for the ignition system of an internal-combustion engine has a core of electrically conducting rubber within an insulated covering, the core terminating at each end in uninsulated electrically conducting material having substantially the same crosssection as the insulated covering of the lead. The terminal portions may be integral with the core and vulcanized to the insulating jacket, being coloured to distinguish them from said jacket, or they may be metallic and bonded to the rubber. The resistance of such a lead is given as 1500 to 2000 ohms.
Patent GB-362276-A (GB)
IPC: C10B25/16
Filed: 1931-03-13
Abstract: 362,276. Coke oven doors. ACKEREN, P. VAN, 62, Irmgardstrasse, and KOPPERS AKT.-GES., H., 29, Moltkestrasse, both in Essen, Germany. March 13, 1931, No. 7833. Convention date, March 14, 1930. [Class 123 (i).] A packing between a coke oven door 4 and the frame 2 is formed by a resilient plate 8, having an angle frame 9, pressed against the frame 2 by screws 12 and provided with a metal plate or frame 13 enclosing heat insulating packing 14. The inner plate 13 rests against a shoulder on the door and is riveted to the frame 9.
Patent GB-684953-A (GB)
Title: An apparatus for comminuting refuse or like waste matter
IPC: B02C19/20
Filed: 1949-03-23
Abstract: 684,953. Apparatus for comminuting refuse. WESTSTRATE, W. A. G. March 23, 1949 [March 23, 1948], No. 7871/49. Class 59 Apparatus for the treatment of refuse or like waste matter, in which means are provided for separating the refuse during a comminuting treatment into a quantity of finer material, comprises at least one rasping element formed with a plurality of individual projections which effect the rasping action and one or more rubbing elements arranged substantially normal to said rasping element and in spaced relation thereto, the rasping element and the rubbing element being arranged for movement relative to each other so that the refuse or like waste matter is rubbed over the rasping surface to produce the finer material, separate outlets being provided for the delivery of the coarse and finer materials. Refuse fed on to a perforated rasping element 1 is rubbed thereagainst by rotating arms 4, the resulting fine particles fall through the perforations on to a collecting plate 9 where further rotating arms 10 move them to a discharge opening 11, while the coarser material is slowly moved by the arms 4 towards the periphery of the rasping element 1 where it is discharged continuously or at intervals through an opening 7. The arms 4 may be arranged to oscillate, may have roughened surfaces and/or may be capable of tilting, either being positively tipped up during their rotation or otherwise. The element 1 may be caused to undulate, or may rotate while the arms 4 are stationary, or both element and arms may rotate in opposite directions. The arms 10 may be W-shaped as at 10<SP>1</SP>, Fig. 3, and two discharge openings 11<SP>1</SP>, 11<SP>11</SP> may be provided in the plate 9. The plate 9 may be constructed as a fine mesh screen or as a rasp. Spray nozzles 6 to moisten the material to be comminuted are provided. In a modification the apparatus is mounted in an inclined position on caterpillar tracks and fine material from the plate 9 is discharged through a peripheral opening. In another modification, Fig. 5, material is moved over the perforated rasping element 1 by plates 19 carried by an endless belt, the fine material passing through the perforations to fall on to an endless belt conveyer 21 coarse material being carried to an opening 23 to be discharged down a shoot 20. In a further embodiment, Fig. 6, radial rubbing plates 25 on a rotating cylinder 24 cooperate with a cylindrical perforated rasping element 1.
Patent GB-1399281-A (GB)
Title: Extraction of copper from metallic materials
IPC: C22B3/00
Filed: 1972-02-21
Abstract: 1399281 Extraction of copper ISC SMELTING Ltd 6 Feb 1973 [21 Feb 1972] 7945/72 Heading C1A [Also in Division C7] Copper values are leached from copper dross separated from lead bullion produced in the blast furnace smelting of lead or zinc lead by contacting particles of the dross in the form of a metallic lead matrix containing copper and copper compound inclusions with an aqueous solution of ammonium carbonate and ammonium hydroxide to dissolve copper from the dross. The leaching may be effected in the presence of the oxidizing gas or the leachate may be subsequently treated with an oxidizing gas. The ammoniacal solution is preferably a solution of (NH 4 ) 2 CO 3  and NH 4 OA and may contain SO 4 - preferably with a mole ratio CO 3  : SO 4  of 1 : 3. The leaching may be carried out in any conventional manner. The copper may be recovered from the leachate by contact with a copper-selective organic phase, e.g. one containing a hydroxy oxime, from which it may be extracted with an aqueous mineral acid (preferably H 2 SO 4 ). This aqueous phase may be evaporated to recover a copper salt or it may be electrolysed to recover copper.
Patent GB-1009224-A (GB)
Title: Improvements in or relating to telescopically collapsible umbrellas
IPC: A45B25/08
Filed: 1963-02-27
Abstract: 1,009,224. Umbrellas. A. KORTENBACH, H. J. WORKING, T. SCHULTS, F. WORRING, K. KORTENBACH, and D. WORRING. Feb. 27, 1963 [April 25, 1962], No. 7957/63. Heading A4P. Telescopic parts 1, 2 of an umbrella stick, retained in extended position by spring urged balls 3 in a plastic ball cage 5, are prevented from complete separation by a locking plunger 9 urged by a leaf spring 10 having a free end 12 which is bent over and abuts the inner surface of the inner stick part 1 to prevent excessive bending of the spring when the plunger is pressed inwards to allow disassembly of the stick parts. The plunger is disposed in a longitudinal groove 6 in the inner stick part 1 into which an inwardly pressed rib 7 of the stick part 2 projects the rib having an aperture 8 the edge of which is engaged by the plunger and through which the plunger can be pressed in by a tool. The leaf spring 10 is retained at the lower end of the stick part 1 by a V-shaped reinforcing part 11.
Patent GB-1093901-A (GB)
Title: Hoist control safety lock
Inventor: ROBSON ERNEST THOMAS
IPC: B66B13/24
Filed: 1965-02-24
Abstract: 1,093,901. Builders' hoists. HOWARD FARROW CONSTRUCTION Ltd. Feb. 24. 1966 [Feb. 24, 1965], No. 8033/65. Heading B8L. A hoist control safety lock for use with a platform (not shown) adapted to be raised or lowered within a framework provided with landing stages each fitted with at least one gate (two shown 18, 19), adapted to close the landing stage entry/exit, comprises a locking member 3 operable towards or away from a locking position by opening or closing of the gate or gates and adapted, in the locking position, to co-operate with an abutment member formed by an interlock stop 24 on a control rope 23 in such a way that movement of the platform, once stopped at a landing stage, is prevented for as long as a gate at any landing stage remains at least partially open. When one or both of the gates 18, 19 are slid open strikers 16, 17 move apart by the force of a spring 6, this movement being transmitted through levers 11, 12, push rods 9, 10 and an equalizer arm 8 to a connecting rod 4 which, under the influence of the spring 6 abutting one of two fixed bearings 5, moves outwards to push the locking member 3 to its extended position where a forked end part 3a, Fig. 3, is positioned over the stop 24 to prevent the control rope 23 from being raised to start the hoist. The forked end part 3a of the locking member 3 is pivoted at 22 with wedge-shaped mating portions to prevent over-running and allow the control rope 23 to be moved to the " off " position even when the locking member 3 is extended, Fig. 4 (not shown).
Patent GB-966019-A (GB)
Title: Improvements in or relating to composite piece-parts for use in apparatus manufacture
Inventor: ROBINSON JOHN SYDNEY
IPC: H01L23/36
Filed: 1960-03-08
Abstract: 966,019. Riveted joints; making semiconductor devices. ENGLISH ELECTRIC CO. Ltd. March 6, 1961 [March 8, 1960], No. 8143/60. Headings B3A and B3U. [Also in Division H1] A method of mounting a mechanically weak ductile member comprises the steps of placing said member within an aperture in a piece of mechanically strong material and expanding the ductile member to grip the sides of the aperture. A silicon power rectifying device is constructed by placing a silver-plated cylindrical O.F.H.C. copper slug a inside a nickel-plated mild steel ring b and forcing a punch into the copper to expand it to fill the aperture in the ring. Surplus copper is machined off to form a seat for a semi-conductor wafer d and for an insulator e, and the assembly is then heated to 825‹ C. in an hydrogen atmosphere to braze the copper to the steel. The wafer d and insulator e are placed in position and an electrode f is added. The device is secured to a heat sink by an external clamp (not shown). Silver, gold or aluminium may be used instead of copper for the slug and the ring may be of Ni-Cr-Mo steel or a hardenable copper.
Patent GB-700873-A (GB)
Title: Improvements in and relating to toothed wheels
Inventor: TUCK FREDERICK ALFRED
IPC: F16H55/06
Filed: 1951-04-09
Abstract: 700,873. Toothed and ratchet wheels. BRITISH THOMSON-HOUSTON CO., Ltd. March 28, 1952 [April 9,1951], No. 8181/51. Classes 80 (1) and 80 (3) A toothed or ratchet wheel is formed of laminations A punched, complete with the teeth and with holes B for assembly rivets D, from electrical sheet steel having a silicon content. The rivets pass also through metal side discs C.
Patent GB-1368857-A (GB)
Title: Switching device for a coin controlled machine
IPC: G07F5/10
Filed: 1972-02-22
Abstract: 1368857 Coin freed mechanisms WALTER KIDDE & CO Inc 22 Feb 1972 8187/72 Heading G4V A switching device for an electrically operated coin freed machine comprises a pair of series connected switches S1, S2 through which conduction is established after either a predetermined number of coin slide movement cycles or a single such cycle depending on the configuration of a drive member 15 disposed for movement in unison with the coin slide. In the first configuration the drive member displaces cams C1, C2 to actuate the switches in a predetermined sequence and in the second configuration displaces contact members 34, 35 to close both switches independently of the operation of the cams. Changeover from one configuration to the other is effected by exchange of an adapter 25 or 25A releasably secured to the end of the drive member. In the embodiment shown, when the flat adapter 25 is used, two coin slide cycles are required, the adapter on insertion of the slide rotating a ratchet plate 19 carrying a pawl 22 which on withdrawal of the slide engages gear 17 to rotate shaft 16 and cams C1, C2 through an angular distance determined by index gear 18 and latching lever 23. This first indexing of the cams opens switch S1 (normally closed) and closes switch S2 (normally open), the switch S2 being held closed by latch 27 that is released by solenoid 33 at the end of a machine operation (Figs. 9 and 10, not shown). The second indexing of the cams closes switch S1 (Fig. 11, not shown) to establish conduction through the pair of switches (Fig. 3, not shown). When adapter 25A is attached to the drive member depending flanges 40, 41 act on members 34, 35 associated with the switches to establish conduction after one coin slide movement cycle. Embodiments which require three and four coin slide cycles to establish conduction are shown respectively in Figs. 19 to 21 and Figs. 22 to 24 (not shown). The former includes modified switch operating cams (C1B), (C2B) and the latter uses modified ratchet and index gears (17C), (18C) to reduce the amount of angular rotation for each coin slide cycle as well as modified cams (C1C), (C2C).
Patent GB-1541885-A (GB)
Title: Passenger vehicles having an aisle lined with seats
IPC: B60N2/75
Filed: 1976-03-02
Abstract: In the case of the seat (2) which is arranged along the central aisle in buses and bounds the said aisle, the armrest (3) is designed such that it can be pivoted out of an in-use position (G) into a stand-by position (B) in which it makes it possible for a person to sit on the seat and walk down the central aisle without being obstructed. The armrest (3) therefore has an angular leg (7), the length (L) of which corresponds approximately to half the distance (A) measured on the backrest (5) between the in-use position (G) and the stand-by position (B) located to the side of the sitting area (4). The free end of the leg (7) is mounted such that it can pivot about an axis (10) which runs parallel to the longitudinal direction of the horizontal part (8) of the armrest (3). On being pivoted through approximately 180 DEG  the armrest (3) is transferred from the in-use position (G) into the stand-by position (B) or vice versa. In both positions (G or B) the armrest (3) is designed such that it can be locked automatically. <IMAGE>