baber/WOPTO huggingface dataset:
Patent GB-426343-A (GB)
Title: Improvements in or relating to plastering compositions
IPC: C04B28/14
Filed: 1933-09-30
Abstract: A plastering-composition consisting of 2 cwts. of a retarded hemi-hydrate plaster intimately admixed with 3 to 6 stones of paper fluff or paper dust is brought to plastering consistency with water and spread so that the product presents on drying a rough indented surface.  The rough indented surface, which improves the sound-absorbing properties of the product, is obtained for example by trowelling.  Two coatings of different consistency may be applied, e.g. a first coating comprising 2 cwts. of plaster and 3 stones of paper dust and a second coating comprising 2 cwts. of plaster and 4 stones of paper dust. Colouring matter may be added to the mix or applied subsequently as colloid paints which will not fill up the pores in the surface.
Patent GB-1396345-A (GB)
Title: Pattern sheet eg for jacquard machines
IPC: D03C19/00
Filed: 1972-06-09
Abstract: 1396345 Pattern cards SCHAFFHAUSER STRICKMASCHINENFABRIK 9 June 1972 [11 June 1971] 27098/72 Headings D1C and D1E A pattern card comprises a perforated plate 1 covered by a plastics foil 6 in which openings 8 are arranged in accordance with a desired pattern, in alignment with perforations in the plate 1. The perforated plate may be of steel and the foil of transparent plastics material stuck to the plate. The holes in the foil may be removed by stamping, cutting or by heat, e.g. a soldering iron.
Patent GB-1011439-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: H01J61/22
Filed: 1964-07-01
Abstract: 1,011,439. Metal-vapour lamps. GENERAL ELECTRIC CO. July 1, 1964 [July 1, 1963], No. 27188/64. Heading H1D. An electric discharge lamp comprises a tubular elongated envelope of material resistant to the attack of potassium vapour, two electrodes sealed respectively into opposite ends of the envelope, and an ionizable medium within the envelope and comprising potassium and an inert starting gas, the quantity of the potassium being such that in use of the lamp the potassium vapour pressure lies in the range of 30 to 540 torr. The ceramic envelope 2 of the lamp shown is of sintered transparent polycrystalline alumina 8.5 cm. long, 6 mm. in internal diameter and having a wall thickness of 0.8 mm. increased to 1.4 mm. at the ends. Metal, preferably niobium, exhaust tubes 5 and 6 are welded to niobium end closures 3 and 4 sealed by a glassy mixture comprising mainly aluminium and calcium oxides into the envelope. Electrodes 7 and 8 each comprise tungsten coils coated with activating material slipped or screwed on to rods or studs of thoriated tungsten crimped or welded into the exhaust tubes, one, 5, of which may be a dummy while the other, 6, has a filling aperture 9 and a pinched off cold weld 10. The starting gas may be argon or preferably xenon. The projecting length of the tube 6 may be predetermined to provide a desired potassium saturation vapour pressure. The potassium may be introduced by heating to bursting point a glass ampoule located in an exhaust manifold connected to the envelope, or by electrolysing potassium into a glass appendix from a molten bath of a potassium salt. The lamp may be operated continuously on D.C. or A.C. or may be pulsed, and is suitable as a pump for a laser of neodymium barium crown glass. Drawings of the percentage absorption of a neodymium glass and of the emission spectrum of the lamp are provided (Figs. 2 and 3, not shown).
Patent GB-634166-A (GB)
Title: Improvements in or relating to automatic tuning apparatus
IPC: H03J7/30
Filed: 1946-09-11
Abstract: 634,166. Automatic tuning control. COLONIAL RADIO CORPORATION. Sept. 11, 1946, No. 27281. Convention date, May 6, 1944. [Class 40 (v)] An automatic tuning arrangement comprising a motor driven tuning element and means operated by a control valve to disconnect the motor when the circuit is tuned to the desired frequency has further means operated by the control valve to connect or disconnect a reactance which compensates for the overrun of the motor. In the Figure the tunable circuit consists of an inductor 10 and a variable condenser 11 driven by a motor 12 through a clutch and brake 18, 19. A voltage indicative of the state of tuning is applied at 1, 2 to the grid circuit of thyratron control valve 14 and when the voltage is sufficient the thyratron fires operating relay 15. Back contact 15b breaks the circuit of the motor and also of a magnet 22 which disengages the clutch and applies the brake. The forward contact connects a reactance comprising-an inductance 17 and a capacitance 16 across the tuned circuit, the capacitance having been adjusted so that the combined reactance compensates for the over-run of the motor. A cam 21 on the motor shaft disconnects the control valve during 180 degrees of its movement so that the arrangement is only effective when the capacitance is increasing. In an alternative arrangement the cam disconnects the control valve when the capacitance is decreasing the reactance being connected across the circuit during tuning and disconnected when the motor stops. The motor is started by pressing button 14s which extinguishes the control valve. Specification 561,977 is referred to.
Patent GB-1193822-A (GB)
Title: Means for Irradiating Materials
Inventor: NORMAN JOHN ROY
IPC: C08F2/54
Filed: 1966-06-18
Abstract: 1,193,822. Polymerization with high energy electrons. T.I. (GROUP SERVICES) Ltd. 15 June, 1967 [18 June, 1966], No. 27313/66. Heading C3P. [Also in Division H1] Polymeric and monomeric materials are treated in a continuous process to cause therein free radical combination chain reactions to produce polymerization, graft polymerization, co-polymerization, and/or crosslinking by passing the material M in a linear path at a substantially uniform rate past at least four mutually spaced beams of high energy electrons with intervals therebetween, all the beams having the same order of energy, so that the material is exposed to at least four successive doses of radiation of the same order of energy, the duration of each dose being shorter than the time interval between successive doses and the speed of travel being such that the time intervals between successive doses are greater than the half-lifetime of the freeradicals initiated in the material by the action of the electrons. Preferably as shown in Fig. 2, all the beams lie on one side of the path of the material M and the material is in the form of a flat strip. The material may be in the form of a liquid coating on a manufactured material and may comprise a blend of a polymer with a cross-linking monomer. Preferably the polymer is a polyester and the monomer is styrene.
Patent GB-503838-A (GB)
Title: A process for the production of a loose, fine-fibred material
IPC: A01F29/10
Filed: 1937-10-08
Abstract: 503,838. Endless - belt conveyers. EIRICH, J., and EIRICH, G. Oct, 8, 1937, No. 27416. Convention date, June 28. Addition to 483,581, [Group II]. [Class 78 (i)] [Also in Groups II, I, and VIII] Cutting apparatus D is fed with material by conveyer belts A, B which compress the material as it is fed to the cutting knives. The belt A is supported on a frame b pivoted on a shaft C supported in side walls G and is driven by a sprocket wheel d. The other end of the belt travels over a roller i, the shaft g of which is guided in arcuate slots e protected by cover plates, the roller i and sprocket d being relatively movable for adjusting the tension of the belt. The frame b is provided with a pressure plate h to compress the material prior to its being cut by the rotating knife. The lower conveyer belt B runs over a sprocket d on fixed axles k, m, and guide rails n for the belts are provided on conveyers A, B. A gear-wheel a loose on the shaft c gears with a wheel r on the upper sprocket and an intermediate gear s gears with a wheel t on the lower sprocket.
Patent GB-173079-A (GB)
Title: Improvements in sighting apertures for armoured vehicles, turrets, observation postsand the like
IPC: F41H5/20
Filed: 1920-09-27
Abstract: 173,079. Robertson, J. H. Sept. 27, 1920. Conning-towers.-Observation apertures comprising aligned front and rear slots b, c, as described in Specifications 128,607 and 129,477, [both in Class 20 (i), Buildings and structures, Kinds &c. of] are made continuous to provide all-round vision the inner slot being glazed in a gas-tight and water-tight manner. The slots are formed between a pair of upper conical or mushroom shaped members a<1>, d<1> and a pair of lower flanged cylindrical members a<2>, d<2>. The lips a<4>, d<3> round the slots are shaped to deflect bullets into the annular chamber a, which may be lined with splinter-absorbing material. The rear slot c is glazed preferably with plates f of triplex glass arranged between blocks d<4> which serve to support the member d<1> on the member d<2>. The glass is packed so as to be both gas and water tight, and the chamber a may be drained through an opening a<5>. The member a' may be raised and lowered with respect to the member d<1> by a screw-device to vary the size of the forward slot. The interior of the member d<1> which accommodates the head of the observer may be fitted with pads g.
Patent GB-926936-A (GB)
Title: Improvements in and relating to electrical connectors
Inventor: SZAFRANSKI ROMAN
IPC: H01R13/56
Filed: 1960-08-08
Abstract: 926,936. Lamp caps and holders. THORN ELECTRICAL INDUSTRIES Ltd. Aug. 8, 1960, No. 27450/60. Class 38 (1). Figs. 1 and 2 show a two-socket connector, for use with fluorescent lamps having two-pin terminal members, wherein the pins may be various distances from one another, which consists of socket members 13, 14, fixed to the cable cones 17, 18 and embedded in a V-shaped moulding 10, of rubber, P.V.C. or other flexible insulating material, having flexible limbs 11, 12, the distance between the socket members being variable by flexing one or both of the limbs. During the moulding process inserts 19 (Fig. 3, not shown) are placed in the socket members to stop penetration therein of the moulding material. Specification 850,841 is referred to.
Patent GB-1023958-A (GB)
Title: Improvements in and relating to scale removal and ferrous metal passivation
IPC: C23G1/19
Filed: 1963-07-11
Abstract: A process for removing iron oxides from, and passivating, ferrous metal e.g. steel surfaces, particularly in evaporators, boilers or heat exchangers, comprises contacting them with an aqueous alkaline solution, e.g. pH at least 8, prepared by mixing one or more of citric acid, nitrilotriacetic acid, N-2-hydroxyethylamino diacetic acid and alkylenepolyamine polycarboxylic acid, e.g. EDTA, N-2-hydroxyethyl EDTA, diethylenetriamine pentaacetic acid, propylene -1, 2 or 3-diamine tetraacetic acid or isomeric butylene-diamine tetraacetic acids, with water and adding sufficient ammonia, an amine and/or hydroxyalkylamine to render the solution alkaline.  Preferably the amine or hydroxyalkylamine contains 1-5 carbon atoms per molecule, e.g. (di)methylamino-, (di)ethylamino-, methyl ethylamino-, propylamino-, trimethylamino-, butyl- or amylamino-, or the corresponding mono-, di-, tri-(alkano)amino-. The solution may be heated under pressure up to the decomposition temperature. Between 0.1% and 5% corrosion inhibitor may be added.
Patent GB-175327-A (GB)
Title: Improvements in devices for delivering tape
IPC: B65H35/00
Filed: 1920-09-28
Abstract: 175,327. Mortimer, C. G. Sept. 28, 1920. Feeding webs.-In a machine for delivering lengths of moistened adhesive tape, an oscillating hand-lever 53 turns a moistening-roller 27 and a pair of feed rollers 20, 21 until their rotation is arrested by a fixed stop, and the further movement of the lever 53 causes a roller 62 to turn a lever 40 and thus operate a pivoted cutting-blade 35. During the first part of the movement of the lever 53, a projection 64 on it turns a part 51 carrying a pawl 50 engaging a ratchet-wheel 49 carried by a casing 45 secured to the main shaft 28. When sufficient tape has been fed. an arm 66 strikes a fixed stop 76. A spring-pressed block 57 in the part 51 then yields until the roller 62 strikes a plate 44 on the lever 40. Upon release of the hand-lever, it is turned back by a spring until the arm 66 strikes a stop 67; which may be adjusted to vary the length of tape delivered by the device. The moistening-roller 27 is fixed to the main shaft 28 and dips into a tank 12. The roll 18 of tape is mounted on a spindle 15 and is held laterally by a plate adjustably secured to the spindle 15 by a screw. In a modified construction the handle 53 is in two parts hinged together and can be swung forward as a whole against a leaf spring to effect the feeding motion, in the completion of which the lower part strikes a stop and the upper part moves forward alone about its pivot to actuate the cutting device.
Patent GB-1015937-A (GB)
Title: Substituted benzimidazoles and their use as herbicides
IPC: C07D235/08
Filed: 1964-07-03
Abstract: A benzimidazole of formula <FORM:1015937/C2/1> where R1 is H, alkyl, cycloalkyl, Cl, Br or CHF3; R2 is H or alkyl, and each R3 is H, halogen, lower alkyl or alkoxy or CHF3 (provided that when R1 and all the R3's are H, R2 is alkyl), or a water-soluble phytotoxic salt thereof is used as a herbicide.  Compounds claimed per se are 2-isopropyl-, n-propyl-, and n - butyl - 5(6) - chlorbenzimidazole, 1 - n - butyl - benzimidazole, and 1 - n - butyl - 2 - methylbenzimidazole; compounds having Cl or Br on the benzene ring and R1 = cyclopropyl or cyclobutyl; and 2 - isopropyl - 5(6) - trifluoromethylbenzimidazole.  Preparation may be from the appropriate o - phenylenediamine and an aliphatic carboxylic acid; from the appropriate benzimidazole and a haloalkane; by halogenation of the parent benzimidazole; from the halogen-substituted o-phenylenediamine and cycloalkyl carboxylic acid; by reacting the appropriate benzimidazole with a halogenating agent; by reacting the o-phenylenediamine with trifluoracetic or the trifluormethyl-o-phenylenediamine with an organic acid.  Salts are formed with strong acids and bases.  The hydrochloride and alkali metal salts are preferred.  Examples describe the preparation and use of many benzimidazoles containing alkyl, cycloalkyl, methoxy, mono- and di-chlor- and brom-, and trifluormethyl substituents.ALSO:Herbicidal compositions comprise a benzimidazole of formula <FORM:1015937/A5-A6/1> where R1 is H, alkyl, cycloalkyl, C1, Br or CHF3; R2 is H or alkyl; and each R3 is H, halogen, lower alkyl or alkoxy or CHF3 (provided that when R1 and all the R3s are H, R2 is alkyl), or a water soluble phytotoxic salt thereof.  Compounds claimed per se are 2-isopropyl-, n-propyl-, and n-butyl-5(6)-chlorbenzimidazole, 1-n-butyl-benzimidazole, and 1-n-butyl-2-methylbenzimidazole; compounds having Cl or Br on the benzene ring and R1 = cyclopropyl or cyclobutyl; and 2-isopropyl-5(6)-trifluormethylbenzimidazole  Salts are formed with strong acids and bases.  The hydrochloride and alkali metal salts are preferred.  Liquid or solid carriers, solvents or suspending agents, including water, alcohols, hydrocarbons, surfactants and other adjuvants, and other herbicides, e.g. sodium chlorate, sodium borates, 2, 3, 6-trichlorbenzyloxypropanol, chlorphenoxyacetic acids, substituted ureas, trichlorbenzoic acids, triazines, uracils, and carbamates, may be included.  Examples describe the use of many benzimidazoles containing alkyl, cycloalkyl, methoxy, mono-and di-chlor and bronz and trifluormethyl substituents.
Patent GB-1271423-A (GB)
Title: Improvements relating to the manufacture of sheets having holes therein by an etching process
IPC: B01D29/01
Filed: 1969-06-02
Abstract: 1,271,423. Etching. GENERAL ELECTRIC CO. 2 June, 1969 [27 June, 1968], No. 27754/69. Heading B6J. Cylindrical holes are formed in a solid material which has been subjected to a source of radiation forming tracks of damage therein by contacting the solid with a pre-etchant which attacks and degrades the damaged material and contacting the pre-etched solid with an etchant which attacks the degraded damaged material. The solid is a sheet of glass or polymeric material. The pre-etchant may be sulphuric acid or sulphur trioxide gas. The etchant may be hydrofluoric acid, sodium hydroxide, potassium hydroxide or potassium permanganate. The pre-etchant and the etchant may contain a surfactant (examples are given). The damaging radiation is selected from fusion fragments, ions heavier than alpha particles and alpha particles (examples are given).
Patent GB-771896-A (GB)
Title: Rocket motors fuelled by a monopropellant
Inventor: HALFORD FRANK BERNARD
IPC: F02K9/68
Filed: 1954-09-27
Abstract: 771,896. Jet propulsion plant. DE HAVILLAND ENGINE CO., Ltd. Sept. 20, 1955 [Sept. 27, 1954], No. 27794/54. Class 110 (3). A rocket fed with a monopropellant decomposable by heat is provided with means for burning some monopropellant in decomposition products of hydrogen peroxide to provide heat for initiating the decomposition of further monopropellant. A monopropellant, which is decomposable by heat, such as propyne is injected into the reaction chamber 10 through a main inlet 11. To start the rocket hydrogen peroxide is forced in through the inlet 13 and through the decomposer pack 12 which may consist of a wad of silver gauze. The hydrogen peroxide decomposes into a hot mixture of steam and oxygen which decomposes a small quantity of monopropellant injected through the inlet 14. The supply of monopropellant is then increased by a supply through the main inlet 11. The reaction is thereafter self sustaining and the hydrogen peroxide supply may be cut off. Alternatively, a small supply of hydrogen peroxide may be maintained to increase the efficiency of the monopropellant decomposition process. The supply of monopropellant and hydrogen peroxide can be effected by pressurizing their tanks with an inert gas or by pumps. These pumps may be driven by a turbine fed with the decomposition products of the hydrogen peroxide before they enter the reaction chamber. The auxiliary inlet 14 may be dispensed with and the decomposition of the monopropellant initiated by direct injection of the main flow of monopropellant into the decomposition products of hydrogen peroxide.
Patent GB-1152587-A (GB)
Title: Improvements in or relating to Gyroscopes.
IPC: G01C19/04
Filed: 1966-06-22
Abstract: 1,152,587. Gyroscopes. S.G. BROWN Ltd. and N.J. MYALL. June 21, 1967 [June 22, 1966], No.27802/66. Heading G1C. A gyroscope includes a gyro rotor 10 mounted for rotation in a gaseous environment by means permitting angular displacement of the rotor spin axis from the axis about which the torque for spinning the rotor is applied and stationary means 44 adjacent the rotor arranged to promote the turbulence in the gaseous environment due to rotation of the rotor. In the embodiment described the rotor assembly 10 is constructed in accordance with Specification 1,148,582. The stationary means are in the form of radial ribs 44 connected to face 36 of the gyro casing 30. The outer rotor portion of the disc 10 is a gyro wheel 26 the outer surface of which is spherical about the centre of suspension of the gyro and has a pair of annular end faces 40 opposite the ribs 44. The ribs 44 increase the convergency time constant of the gyro i.e. they reduce the rate of return of the spin axis to coincidence with the drive shaft axis.
Patent GB-239083-A (GB)
Title: Vibrating hammer for cleaning or working the surfaces of objects
IPC: F28G7/00
Filed: 1924-11-20
Abstract: 239,083. Schmidt, J. C. Nov. 20, 1924. Cleaners for mechanically removing incrustation; cleaning externally and internally, rotary and non-rotary appliances for. - A scaling or like appliance for plates of tubes comprises an unbalanced spindle 5 driven by a flexible shaft so as to rotate inside a holder carrying a chisel or other tool 10. In the form shown in Fig. 2, spring-mounted cruciform scaling tools 32 are arranged at each end of a frame 27 within which rotates a weight 26. A handle 28 is attached to the frame.
Patent GB-297844-A (GB)
Title: Improvements relating to vehicle bumpers or collision guards
IPC: B60R19/30
Filed: 1928-09-28
Abstract: 297,844. Bryan, J. T., (Assignee of Marston, R. E.). Sept. 29, 1927, [Convention date]. Collision-guards.-In a vehicle bumper or collision-guard having a hinged buffer-bar which is displaced when an object is struck, rubber tension members are provided to resist the swinging movement of the bar. In the construction shown the transverse buffer-bar 7 is carried by double-arm levers 6, which are pivoted at 5 to brackets 4 mounted on the chassis members 2 and have their rear ends 9 bent at right-angles parallel to short projections 10<1> on brackets 10 depending from the chassis, one or more rubber cords 12 being passed around the parts 9, 10<1> and adapted to be extended when the buffer-bar 7 is forced rearwardly. Stops 11, 13 on the brackets 4 and chassis members 2 limit the movements of the levers 6 and bar 7 in either direction. According to the Specification as open to inspection under Sect.. 91 (3) (a) the buffer bar may have a sliding instead of a pivotal movement. This subject-matter does not appear in the Specification as accepted.
Patent GB-827908-A (GB)
Title: Improvements in or relating to stabilizer fin arrangements for ships
Inventor: BELL JOHN
IPC: B63B39/06
Filed: 1957-09-04
Abstract: 827,908. Ships'stabilizing fins. MUIRHEAD & CO. Ltd. Sept. 2, 1958 [Sept. 4, 1957], No. 27891/57. Class 113. A ship stabilizer comprises a main fin rotatable in an oscillatory manner and separate auxiliary fins, one on each side of the neutral position of the main fin, rotatable in time with the main fin to increase the lift thereof in each of the two directions of deflection of the main fin from the neutral position. In Fig. 2, the main fin 1 is associated with two auxiliary fins 2 so that when the main fin is deflected to its maximum angle (shown in phantom), it lines up with one of the auxiliary deflected fins 2. In Fig. 3, there are five auxiliary fins arranged symmetrically about the neutral position of the main fin. The assembly is shown with the main fin at maximum angle of tilt 20 degrees, the uppermost auxiliary being tilted to its maximum 50 degrees, the other auxiliaries assuming proportionately less angular defection down to the last one, which is deflected 20 degrees to the neutral. The proportion between the angles is maintained as the fins are turned together.