baber/WOPTO huggingface dataset:
Patent GB-1422987-A (GB)
Title: Projectile tail units
IPC: F42B10/20
Filed: 1973-06-01
Abstract: 1422987 Tail units DYNAMIT NOBEL AG 1 June 1973 [3 June 1972] 26359/73 Heading F3A A tail unit for a rocket or projectile intended for firing from the barrel 1 of a weapon, comprises: a plurality of erectile fins 9 which are pivoted at 10 and swing out tangentially when the projectile leaves the barrel owing to a pin 11, extending from each of the fins, being driven rearwardly along an arcuate slot 12 in a casing 4 of the tail unit by a sleeve 7 which, up to a predetermined instant after firing the projectile, is retained against displacement. The sleeve 7 is displaced by inertia or by propellant gas pressure, with the optional assistance of a spring 8. To hold the sleeve against displacement until the predetermined instant there is provided: shear pins; a disc which fractures under the pressure of the propellant gases; or a sleeve 16 which is deformed radially outwardly to release a supporting disc 15. An orifice in the disc 15 enables the gases from a launching motor 5 to ignite an initiator (52, 53, 54), Figs. 9 and 10 (not shown), for a cruising motor 19.
Patent GB-1425724-A (GB)
Title: Latex setting materials
IPC: C08L21/02
Filed: 1973-06-01
Abstract: 1425724 Setting rubber latexes MALAYSIAN RUBBER PRODUCERS RESEARCH ASSOCIATION 31 May 1974 [1 June 1973] 26377/73 Headings C3G and C3P A set product suitable for sealing or re-sealing pipe joints is prepared by providing a fluid composition comprising a latex of natural or synthetic rubber, from 20 to 200 pp. hr. by weight of a polymerizable ethylenically unsaturated organic material and a conventional heat sensitizer for the rubber latex (which may be completely or partially omitted when a plasticizer or extender for the rubber is used in sufficient quantities to confer heat sensitizing properties), the composition comprising not more than 50% by weight of water, and initiating polymerization of the polymerizable unsaturated organic material. Suitable synthetic rubber latexes are those of polychloroprene, styrene - butadiene, carboxylated styrenebutadiene, synthetic polyisoprene, acrylonitrile-butadiene and butyl rubbers. Exemplified unsaturated additives are methyl and ethyl acrylate and methacrylate, styrene, n-butyl acrylate and unsaturated polyester prepolymers, the latter being used in supplementary amounts to stiffen the set product. Exemplified polymerization catalysts are redox systems such as comene or tert-butylhydroperoxide in conjunction with tetraethylene pentamine and iron, sodium formaldehyde sulphoxylate, or sodium or potassium bisulphite. Conventional heat sensitizers include zinc ammonium salts, polyoxyalkylene diols and polyvinyl methyl ethers. Plasticizers and extenders include light mineral oils and processing oils and dibutyl phthalate. The fluid compositions, which may be formulated as two-component packages, may also include surfactants, chlorinated hydrocarbon fungicide and/or bactericides, sodium nitrate corrosion inhibitors, antioxidants and pH adjusters.
Patent GB-532850-A (GB)
Title: Improvements in or relating to chairs
IPC: A47C7/00
Filed: 1939-09-22
Abstract: 532,850. Seat-frames. GOMME, E. D. Sept. 22, 1939, No. 26407. [Class 52 (ii)] In a small chair the front and back legs at each side are interconnected by a bottom horizontal rail 13 and a diagonal bracing 14 extending from the top of the front leg to the lower part of the rear leg. The front legs are interconnected by rails 7, 8 and the side seat rails may be dispensed with.
Patent GB-804424-A (GB)
Title: Improvements relating to manometers
Inventor: ROBERTSON GAVIN WILLIAM EDWARD
IPC: G01L9/00
Filed: 1955-09-15
Abstract: 804,424. Photo-electric pressure gauges. NORTH THAMES GAS BOARD. Oct. 4, 1956 [Sept. 15, 1955], No. 26452/55. Class 40 (3). In a U-tube manometer containing a translucent liquid, light is directed on to one limb of the manometer on both sides of the liquid surface in that limb, and that part of the light which passes through the liquid forms on a photo-cell an elongated image which varies in length with the position of the liquid surface. In a modification, photo-cells are associated with both limbs of the manometer and are connected in a measuring circuit to give an indication of the difference in liquid level between the two limbs.
Patent GB-482654-A (GB)
Title: Improved process for separating carbon monoxide from industrial gases
IPC: C01B32/40
Filed: 1936-09-30
Abstract: <PICT:0482654/III/1> Carbon monoxide is continuously absorbed from industrial gases by means of a solution obtained by dissolving cuprous chloride in a solution of two or more of the chlorides of potassium, sodium, ammonium, calcium, magnesium, aluminium, iron, manganese, nickel and copper (cupric).  A preferred solution is a saturated aqueous solution of potassium, sodium and ammonium chlorides in which sufficient cuprous chloride is dissolved to make the concentration in monovalent copper 30 per cent.  The efficiency of the absorption may be increased by operating under increased pressure.  The carbon monoxide may be recovered from the solution by the application of a vacuum.  Specification 359,234 is referred to. The Specification as open to inspection under Sect. 91 comprises also the employment of a solution of cuprous chloride in a solution containing one only of the above mentioned chlorides. The use of other salts (e.g. halogenous) and other bases (e.g. organic bases) is also referred to.  An apparatus for conducting the process comprises an absorption column A filled with Raschig rings, the carbon monoxide-containing gas entering at T and passing away free from carbon monoxide at T1 and a recovery column A1 to which a vacuum is applied by a pump F, the liquor being circulated by a pump P to the vessel A1 and returning to the vessel A through a pipe B whose lower part is submerged in an open tank C of greater volume than the pipe B.  If the absorption is conducted at elevated pressure the length of the pipe B is proportionately increased.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1429557-A (GB)
Title: Hydraulic exciter of vibrations for a vibratory compactor
IPC: B06B1/18
Filed: 1973-06-04
Abstract: 1429557 Hydraulic pulse generators KOEHRING GmbH - BOMAG DIVISION 4 June 1973 [24 June 1972] 26474/73 Heading F1P In Fig. 1 pistons 14, 15 driven by a common crankshaft reciprocate a piston 13 connected to a vibratory compactor. The stroke of the latter is altered by changing the angle α of the piston 15. Fig. 2 shows an arrangement in which two pistons are driven by two pairs of driving pistons. Fig. 3 shows an arrangement in which a free piston 23 separates a volume 24 of gas from liquid in the rest of the system. The gas acts as a spring and at the resonant frequency a large stroke can be maintained at decreased power output. Figs. 4, 5 show oscillating vane devices which are driven by any of the methods described above.
Patent GB-169997-A (GB)
Title: Improvements in wireless telegraphy
IPC: H04L5/06
Filed: 1921-10-06
Abstract: 169,997. Abraham, H. Oct. 6, 1920, [Convention date]. Multiplex signalling; keying systems and apparatus.-A multiplex wireless system is arranged so that when one key is depressed the aerial radiates a wave length L1, when the other key is depressed the aerial radiates a wave length L2, whilst when both are depressed simultaneously a third wave length L3 is radiated. At the receiving station or stations, one indicator is operated by wave lengths L1 and L3, and the other by wave lengths L2 and L3. More than two messages may be sent simultaneously. Figs. 1 and 3 show respectively transmitting and receiving circuits for a diplex system, and Fig. 2 shows a transmitter for a Baudot system. Referring to Fig. 1, the signal keys 7, 8 are placed in circuits 5, 6 coupled inductively or directly to the aerial inductance 2, the aerial being energized by an oscillation generator such as an arc 3. Closure of the key 7 gives a wave length L1, of key 8 a wave length L2, and of both simultaneously a wave length L3. The keys 7, 8 may be arranged to short-circuit an inductance or a capacity in the oscillating circuit. At one of the receiving stations, Fig. 3, resonant circuits 3<1>, 4<1> responding to wave lengths L1, L3 are connected to the same or to different detectors, and the signals are received in a common listening or recording apparatus 5'. In the arrangement shown in Fig. 2 for sending two messages simultaneously on the Baudot system, the oscillations are generated by an arc 3, and the interrupters 10, 12 in the circuits 5, 6 are controlled by electromagnets 17, 18. Five keys are provided for each message, and the keys of each set are put in the battery circuit in turn by a distributor 34. The keys for one message control the magnet 18 and circuit 6, for emitting wave length L2; while the keys for the other message control the magnet 17 and circuit 5, emitting the wave length L1. Should a key of one set be operated at the same time as the corresponding key of the other set, the third wave-length L3 is radiated. If desired, each key may control a separate circuit such as 6, thus giving a different wave length for each key. The keys may be controlled manually or automatically. The wave emission may be suppressed or damped when neither of the circuits 5, 6 is closed. The electromagnets 17, 18 and switches 10, 12 mav be replaced by thermionic apparatus. Arrangements similar to those shown in Figs. 1 and 2 may be employed for thermionic generator or spark-gap stations. When high-frequency alternators are used for transmission, the frequency or wave length emitted may be varied by controlling a rotating field the frequency of which is added algebraically to that of the cscillations. Three alternators giving wave-lengths L1, L2, and L3 may be employed. The Specification as open to inspection under Sect. 91 (3) (a) also states that frequency-changers with stationary windings may be employed. This subject-matter does not appear in the Specification as accepted.
Patent GB-951334-A (GB)
Title: Continuous casting plant
IPC: B22D11/053
Filed: 1961-07-21
Abstract: 951,334. Continuous casting-machines. CONCAST A.G. July 21, 1961 [July 27, 1960], No. 26480/61. Heading B3F. In a continuous casting plant with a reciprocating mould, the amplitude of the reciprocation is steplessly variable during operation. A mould table is clamped to support members 7, 7<SP>1</SP>, Figs. 1 and 2, by clamps 10, and reciprocated by a U-shaped lever 17 pivotally mounted on a horizontal pin 18. The ends of the limbs of the lever are pivotally connected to the mould table support pillows 1, 1<SP>1</SP> and the other end of the lever carries a roller 24 engaging with a grooved annular member 26. The member 26 surrounds the motor-driven drive shaft 28 and is mounted on a pivot 27 so that it rotates with the shaft but may be inclined to the axis thereof so as to vary the amplitude of rocking of the lever 17 about the shaft 18. The tilting of the ring 26 is achieved by vertical movement of a pin 33 by means of a hand wheel 43, the pin being secured to the ring 26 through links 35, 36, 37. An indicator 45 shows the selected amplitude. In a modification, Figs. 4 and 5, a U-shaped lever 66 pivoted on a shaft 68 is rocked by engagement of a roller 65 with the cam groove 64 in the wheel 60. Levers 75, 751 pivoted on a shaft 76 engage, by means of wheels 73, 731, 81, 81<SP>1</SP>, at one end the lever 66 and at the other end the mould reciprocating levers 107, 107<SP>1</SP> which are pivoted on a shaft 18. Variation of the amplitude of the stroke of the mould is achieved by movement of the shaft 76 carrying the levers 75, 75<SP>1</SP> on a slide 75 by means of a shaft 79, operable manually or otherwise. (For Figure 4 see next page).
Patent GB-284385-A (GB)
Title: Improvements relating to railway signalling systems
IPC: B61L3/22
Filed: 1926-10-25
Abstract: 284,385. Westinghouse Brake & Saxby Signal Co., Ltd., (Union Switch & Signal Co.). Oct. 25, 1926. Thermionic relays.-Fig. 9 shows a train-carried apparatus used in an automatic railway signal and traincontrol system employing alternating current in the track rails 1, 1<a> Inductively affected coils 27, 28 are connected in series to the primary 196 of an auto-transformer and tuned to control current frequency by condenser 195. The secondary of the transformer is tuned to the same frequency by condenser 197 and the voltage variations are amplified by two electron-tube amplifiers 198, 199. The filaments are supplied in series from a battery 203 over control resistances 201, 202 and a ballast lamp 200. The secondary of the transformer is connected between grid and filament of amplifier 198 through resistance 202 and a high resistance 204, the function of the latter being to prevent the grid from becoming positive with respect to the filament during a portion of each cycle when the voltage across condenser 197 is greater than that across resistance 202. The plates of the amplifier are supplied from the high-potential winding 205 of a dynamotor, the low-potential field winding 206<a> and armature 206 of which are supplied from battery 203. The positive terminal of winding 205 is connected to the plates through reactor coils 207, 208. The plate of tube 198 is connected through an adjustable resistance 210 with the negative pole of the filament supply and a portion of this resistance is included in the grid circuit of tube 199. The plate circuit of tube 199 includes a condenser 212 and the primary 211 of a transformer bridged by a condenser 213. The secondary 214 of the transformer has two windings connected as shown through rectifiers 215, 216 to deliver both halves of the current wave unidirectionally to a relay D. Relay D controls the supply of current from battery 203 to slow-release relays E', E<2> which in turn selectively control the lighting of one or other of three lamps 50 - - 61 according to traffic conditions.
Patent GB-210480-A (GB)
Title: Improvements in and relating to the purification of liquids
IPC: B01J20/00
Filed: 1922-10-03
Abstract: 210,480. Benoit, A. L. Oct. 3, 1922. Filtering-media.-Chrome leather shavings or like scrap from the chrome leather industry are used as filtration and absorption material for purifying liquids. The scrap is dried in air, and the coarser parts, after separation from the finer particles, are used as the filtering medium. If drinking water is to be prepared from waste liquors, the scrap is first extracted with water, acetic acid, or other suitable chemicals. The scrap may be used in conjunction with other decolourising media, and is regenerated by extraction with water or by treatment with chemicals. It can be used for purifying sugar juice.
Patent GB-696378-A (GB)
Title: Improvements in or relating to universal couplings
Inventor: CHAPMAN CHARLES WALLACE
IPC: F16D3/62
Filed: 1950-11-02
Abstract: 696,378. Universal joints. METALASTIK, Ltd. June 28, 1951 [Nov. 2, 1950], No. 26767/50. Class 80 (ii). A universal joint has on hub portions 10, 11, of the interconnected shafts 12, 13, a similar number of outwardly radiating arms 14, 15, 17, 18, which carry resilient bushes 16 bonded between inner and outer sleeves 25, 26. A ring member 19 encloses the arms and has inwardly directed lugs each containing a resilient bush 24 bonded between inner and outer sleeves. The inner sleeve 27 of each bush 24 is connected to the inner sleeve 25 of a bush 16 by two links 29. A plate 31 screwed on each side of the ring member 19 encloses the links at the sides and may have a sealing ring engaging a hub portion 10 or 11.
Patent GB-733977-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L9/00
Filed: 1953-09-30
Abstract: 733,977. Suction cleaners. ELECTROLUX, Ltd. Sept. 30, 1953 [Dec. 20, 1952], No. 26816/53. Class 8 (1). In a suction cleaner comprising a housing 11 having an inside dust collector 12 and a removable cover 16, the dimensions of the cover are smaller than the opening in the housing and the rim 14 of the dust collector 12 forms a seating for the cover. The rim is provided with a sealing ring 15. In a modification the dust collector is provided with a supporting rim which is bent to contact a sealing ring on the cover and a further sealing ring on the housing.
Patent GB-242278-A (GB)
Title: Improvements in apparatus for use in cautery
IPC: A61B18/08
Filed: 1925-10-27
Abstract: 242,278. Magnani, 1-:L. Oct. 29, 1924, [Convention date]. Cauterizing - appliances.-Apparatus for use in cautery comprises an electrically heated needle and a holder which serves to connect it to a regulable transformer. The needle may comprise a heating-element z, Fig. 6, mounted in a quartz sheath X, and connected by conducting members, v<1>, v<11> passing through a carrier w to plug contacts u<1>, u<11>. The holder comprises an insulating handle o, Fig. 4, within which is mounted a conducting tube n carrying sockets t<1>, t<11> to receive the plugs u<1>, u<11>. The socket t<11> is connected to the plate r and through the tube n to an insulated lead m<11>. The socket t' is insulated from the plate r and is connected to an insulated lead m<1> passing through the tube n. The leads m<1>, m<11> are provided with plugs to engage sockets B, Fig. 1, connected to the secondary s of the transformer. The transformer comprises end-pieces a, b between which the laminated core c is mounted. The end-piece a is provided with a cap d in which is mounted a rotary switch e operated by a handle f to engage studs connected to tappings on the primary p. Plugs i are provided for connection of the primary to the supply leads. A window F is provided for observation of the switch. An extension member comprising a pair of insulated conductors with sockets at one end and plugs at the other may be connected between the needle and the handle. Modified forms of heaing element and sheath are described.
Patent GB-225683-A (GB)
Title: Improvements relating to dipper dredges or excavators
IPC: E02F9/06
Filed: 1923-10-27
Abstract: 225,683. Lobnitz & Co., Ltd., (Robinson, A. W.). Oct. 27, 1923. Scoop-arm machines.-A dredger comprising a loating structure carrying a turntable 5 with a oom 6 on which the scoop arm 7 is mounted and having stabilizing spuds, wire-rope operating gear, and winches has the main winch and its engine 9<a> centrally situated, the winch having a central barrel 16 for hoisting the scoop arm through a duplex rope 17, and side barrels 25, 26 for operating side spuds 3, while a separate engine and winch 11 for swinging the turntable are placed forwardly and a winch 12, and preferably the driving engine therefor; are mounted on the boom and effect inward and outward movement of the scoop arm ;; further, all the controls for these parts are placed together in one station for operation by one man. A backing rope 41 for the scoop arm is operated from a barrel 44 of the main winch. A rear spud 4 is operated by a winch 45 and a further winch 50 has a number of barrels controlling ropes 49 by which adjacent barges are manoeuvred. A duplex rope 36, Fig. 6, for thrusting the scoop arm forward passes round the end of the scoop arm and round an eye 38 secured in a recess 39. The driving means may be steam, electric or internal combustion. Compressed-air controls are provided for band clutches connecting the winches to their driving means and for brakes on the spud-hoisting barrels 25, 26. The various engines and brakes on the remaining winch barrels are controlled by levers or by compressed-air means.
Patent GB-1312348-A (GB)
Title: Preparation of tetrafluoroethylene
Inventor: VECCHIO M
IPC: C07C17/269
Filed: 1970-06-04
Abstract: 1312348 Tetrafluoroethylene MONTECATINI EDISON SpA 4 June 1970 [4 June 1969] 27076/70 Heading C2C Tetrafluoroethylene is prepared by dechlorination and dimerization of dichlorodifluoromethane by treatment with an alkali metal or alkaline earth metal amalgam in a polar aprotic solvent. Solvents specified are hydrocarbons, carboxylic and phosphoric amides, nitriles, lactams, sulphones, sulphoxides, ethers, phosphates and carbonates. Reaction is preferably assisted by a promoter comprising a lithium salt or an oxonium, sulphonium, phosphonium or quaternary ammonium salt. The process may be batchwise or continuous. The amalgam may be obtained from an electrolytic cell, the exhausted amalgam being recycled to the cell. Reaction temperatures may be controlled thermostatically or by variation of the rate of feed of the amalgam. Polymerization inhibitors may be added, for example terpenes, e.g. limonene, phenol and quinones. The products may be separated by fractional distillation.
Patent GB-463927-A (GB)
Title: Improvements in and relating to the manufacture of building plates
IPC: C04B28/30
Filed: 1936-10-07
Abstract: Sisal fibre waste is freed from fleshy matter by washing in a trough, and treated with baryta water to neutralize organic acids, and is then mixed with a suspension of magnesite in magnesium sulphate solution.  Fillers, e.g. red ochre, may be added.  The excess moisture is expressed and the mass is moulded or rolled into sheets. A small addition of a bitumen dispersion to the mass renders the sheets weatherproof.
Patent GB-279110-A (GB)
Title: Improvements in coffee infusing machines
IPC: A47J31/30
Filed: 1927-10-14
Abstract: 279,110. Greubel, F., and Eisenhut, P. Oct. 15, 1926, [Convention date]. Urns and infusing-machines.-In coffee-infusing machines of the kind wherein the water is raised by steam pressure from a vessel a in which it is boiled to a vessel a<1> containing the ground coffee, the coffee is carried by a receptacle e, which may have a sieve-like cover f and bottom, supported on a float d which raises it out of the infusion. The upper vessel a<1> may have a central tube b, forming a guide for receptacle e, through which the hot water passes to vessel a<1>, entering by outlets b'. The tube b may end slightly above the bottom of the lower vessel a so that all the water is not forced into the upper vessel a<1> into which steam finally enters and, by raising the cover c slightly, escapes through perforations in the cover flange. The vessels a, a<1> may be detachably secured together at a beaded edge g by fasteners g<1>. The vessel a has a handle c<2> and an outlet cock h<1>. The device may be made of aluminium.
Patent GB-651851-A (GB)
Title: Process of removing pyrogen from solutions of streptomycin by means of charcoal
Filed: 1947-10-13
Abstract: Aqueous solutions of streptomycin acid salts such as the sulphate or hydrochloride are freed from pyrogenic compounds by treating with charcoal, for one hour at least filtering off the charcoal and recovering the purified streptomycin from the filtrate, e.g. by freezing and drying in the frozen state. Suitably, the aqueous solution of the streptomycin salt containing up to 25 per cent of the salt preferably from 2 to 10 per cent is treated with an amount of powdered charcoal equal to from 12 to 50 per cent of the weight of the dissolved streptomycin salt and the mixture is filtered.  The charcoal may be washed with alcoholic acid or water to recover adsorbed streptomycin.  In examples (1) and (2) an aqueous solution of streptomycin hydrochloride is treated with charcoal and filtered, the resulting solution, together with the washings from the charcoal, are filtered through a Seitz filter and freeze dried to give a purified streptomycin hydrochloride.  Specification 657,674 is referred to.