baber/WOPTO huggingface dataset:
Patent GB-490456-A (GB)
Title: Improvements in forced-flow steam and other vapour generators
IPC: F22B29/08
Filed: 1936-12-18
Abstract: 490,456. Forced-flow steam boilers. BABCOCK & WILCOX, Ltd. Dec. 18, 1936, No. 34791. Convention date, Dec. 18, 1935. Drawings to Specification. [Class 123 (ii)] In a forced-flow boiler with parallel connected tubes which discharge into a separator from which separated water is withdrawn, the three pumps supplying the feed, fuel and air are driven at fixed speed ratio, and the feed pump supplies more water to the boiler than is evaporated over the whole speed range of the pumps. The boiler tubes are arranged along the walls and across the back of the furnace, and the separator is arranged between a superheater and a feed heater in a horizontal return flue above the combustion chamber. The feed is supplied through resistors as described in Specification 490,459. The bends of the boiler tubes are formed by caps as described in Specification 490,454.
Patent GB-487063-A (GB)
Title: Improvements in or relating to multiple contact electric sockets
IPC: H01R13/453
Filed: 1936-12-18
Abstract: 487,063. Plug couplings. BRITISH MECHANICAL PRODUCTIONS, Ltd., and DEAKIN, S. T. Dec. 18, 1936, No. 34861. [Class 38 (i)] A shutter for the live contacts of a socket member terminates in a cam positioned in a socket tube for engagement by one of the pins and is pivoted closely adjacent this tube. The shutter is composed of two C-shaped plates secured back to back, one plate 5 being of insulating material and normally covering the current-carrying sockets and the other, which may be of metal, having a wedge-shaped end 7 lying in the earth socket 3. The pivotal axis of the shutter is at 8 near this socket so that a magnified movement.is given to the-shielding portions of the shutter. A helical spring at the pivot tends to maintain the. shutter in effective position. Specifications 377,352 and 434,078 are referred to.
Patent GB-840878-A (GB)
Title: Process for the production of bis-amidoximes
IPC: C07C259/14
Filed: 1958-10-30
Abstract: Bis-amidoximes are prepared by reacting a dicarboxylic acid dinitrile with hydroxyamine hydrochloride in an alcohol or aqueous alcohol solution in the presence of a solution of an alkali metal or alkaline earth metal hydroxide.  Examples describe the preparation of succinic and adipic acid-bis-amidoximes.
Patent GB-389207-A (GB)
Title: Improvements relating to reinforced magnesite composition floors
IPC: E04C5/01
Filed: 1931-12-17
Abstract: 389,207. Floors. TUCKER, H. L., Redcliffe, Urmston, Manchester. Dec. 17, 1931, No. 34946. [Class 20 (iv).] In the construction of reinforced and magnesite composition floors, the metal of the reinforcement is cleaned by buffing, sand-blasting, or like treatment, then coated with silicate of soda and, whilst the latter is still wet, the reinforcement is embedded in the composition used in making the floor. The silicate of soda may have alumina and sugar added thereto. The composition may comprise magnesite, magnesium chloride and the usual fillers. The reinforcement may be embedded in a sub-flooring such as described in Specification 388,158.
Patent GB-450295-A (GB)
Title: Improvements in and relating to control systems for multiple electric motor drives
Filed: 1935-12-18
Abstract: 450,295. Control of several A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 18, 1935, No. 35135. Convention date, Dec. 19, 1934. [Class 38 (iii)] An electric drive suitable for carding- machines comprises asynchronous motors m interconnected on their stator and rotor sides, and includes a main relay a for connecting the motors to the supply, a relay l1 operated simultaneously with the relay a to reduce the rotor resistance w, and a braking relay b arranged to connect the stator windings to a single phase of the supply when the relay a is opened to stop the motors. Upon operation of a starting switch the relays a, l1, are closed and maintained over auxiliary contacts of the relay a, a time delay relay also being energized which effects closure of a relay l2 to short-circuit the resistance w when the motors have come up to speed. Upon operation of a stop switch the relays a, l1, l2, are de-energized and back contacts on the relay a energize the relay b which connects the motor stators across a single phase of the supply, each stator having two phase windings connected in parallel. The time delay relay is also de-energized when the stop switch is operated, and, after a time interval, effects the de-energization of the relay b. Resistances d are permanently connected in the rotor circuits to reduce mechanical shocks on starting. The relay b may be so interlocked with the relay a that the drive cannot be restarted until it has first come to rest, and the relay b has dropped out.
Patent GB-477799-A (GB)
Title: An improved electrically operated tooth brush
IPC: A61C17/26
Filed: 1936-12-22
Abstract: 477,799. Toothbrushes. ROBINSON, R. C. Dec. 22, 1936, No. 35202. [Class 19] An electrically-operated toothbrush is characterized in that the brush is carried in an attachment D bent through an obtuse angle from a handle A, and the brush is carried by a clip J and is provided with a cup L to prevent tooth paste and other impurities entering into the working parts. A motor B is housed in the handle A or an independent electrical drive may be provided. The attachment D has a flexible or geared driving shaft E the end of which F is square to fit the end of the main shaft G. Bevel gears I are mounted in a housing H and the clip J holds the brush K. The lower end of the attachment D is split into four parts each part having a small pad adapted to spring into a recess in the handle A.
Patent GB-917770-A (GB)
Title: Organosilicon compounds
IPC: C07F7/18
Filed: 1961-09-29
Abstract: The invention comprises 3,6-bis(silyl)cyclohexadienes-1,4 of the formula <FORM:0917770/IV(a)/1> where R is an alkyl, aryl or cycloalkyl radical and Z is hydrogen, halogen or an R or OR radical. The compounds are prepared by reacting a halosilane SiR2ZX, where X is halogen, with benzene in contact with an alkali metal and any of certain ethers free from aliphatic unsaturation.  Mixtures of metals or of a metal with a metal salt may be used and a liquid alloy such as Na2K is also suitable.  The ethers include cyclic ethers such as tetrahydrofuran, tetrahydropyran and 2-butoxymethyl-tetrahydrofuran, and linear ethers having a carbon:oxygen ratio of less than 4:1, e.g. dimethyl and methyl ethyl ether and the ethers of ethylene glycol and of polyglycols. The compounds may be converted to the corresponding disilyl phenylene compounds which may themselves be converted to silcarbanesiloxane copolymers.  The first conversion may be effected by dehydrogenation, e.g. by heating with sulphur or oxygen or by reacting with quinone.  Some phenylene derivative may be formed in the preparation of the cyclohexadiene compound. Examples are given in which R and Z are methyl, chloro, methoxy, hydrogen, cyclohexyl and octadecyl.
Patent GB-1070076-A (GB)
Title: Explosion forming method and apparatus
IPC: B23K20/08
Filed: 1964-08-27
Abstract: 1,070,076. Moulding powdered materials. AEROJET-GENERAL CORPORATION. Aug. 27, 1964 [Aug. 27, 1963], No. 35223/64. Heading B5A. [Also in Division B3] A method of explosion-forming in a die comprises the step of heating a workpiece to be formed, or a body of powder to be compacted, before detonating the explosive charge.
Patent GB-1200110-A (GB)
Title: Electroplating of smooth, semi-bright gold deposits
IPC: C25D3/62
Filed: 1967-08-01
Abstract: 1,200,110. Electro-deposition of gold and gold alloys. SEL - REX CORP. Aug.1, 1967, [Sept.7, 1966], No. 35230/67. Heading C7B. Small parts of irregular shape are uniformly plated with gold, e.g. by barrel plating, by electro-deposition at a current density of 0À1 to 10 amp/sq.dm. at 20 to 90 C from an aqueous bath consisting of Gold (added as alkali metal gold cyanide) 1 to 75 g/l Conducting and buffering compounds 5 to 400 g/l Thallium (added as a watersoluble compound) 0À001 to 25 g/l Alum 0À100 g/l the pH being adjusted to lie within the range of 3 to 6 e. g. with phosphoric acid. By "alum" is meant the hydrated double sulphates of ammonium the alkali metals or thallium with those of aluminium, chromium or gallium. The thallium compound used may thallous or thallic sulphate, thallium chloride nitrate or fluosilicate or thallium (I) alum. The buffering compounds may be partially neutralized weak stable organic acids or alkali metal phosphate. In examples the gold is supplied as the potassium double cyanide, thallium as the sulphate and the bath is buffered with diammonium citrate or potassium phosphate. If an alum is also present potassium chromium alum is preferred. Reference is made to the product of both pure gold and bright lemon-yellow gold alloy deposits.
Patent GB-751713-A (GB)
Title: Improvements relating to filters for fluids
IPC: B01D27/00
Filed: 1954-12-06
Abstract: 751,713. Filters. FRAM CORPORATION. Dec. 6, 1954 [Jan. 4, 1954], No. 35247/54. Class 46. [Also in Groups VIII and XXVIII] An oil filter medium is formed by adhesively securing to one side of a sheet 10 of porous paper, flock fibres 11, e.g. rayon one or more millimetres long, so as to provide an erect pile of spaced fibres. The filter sheet may be corrugated and disposed with the fibres facing up-stream of the oil flow; dirt being collected at points 27.
Patent GB-1400953-A (GB)
Title: Flat glass
IPC: C03B18/02
Filed: 1973-07-25
Abstract: 1400953 Glass composition PPG INDUSTRIES Inc 25 July 1973 [26 July 1972 3 April 1973] 35326/73 Heading C1M Flat glass articles (e.g. sheets) are made from glass which has the following composition, in per cent by weight:- the CaO/MgO weight ratio being 1À3-1À9, and the Na 2 O/CaO weight ratio being 2À0-3À2. The glass may be formed into flat glass by a float process or a sheet drawing process (e.g. the Pittsburgh process). The glass may be produced by including less than 25 lbs. of salt cake (Na 2 SO 4 ) per 1000 lbs. of silica sand in the batch (to dissolve silica scum), and forming the melt, at least 60% by weight of the SO 3  added to the batch being retained in the glass produced. The glass preferably has a melting temperature of 2550-2660 F., a liquidus temperature of 1680-1725 F., and a softening point below 1330 F., and may exhibit a Young's Modulus below 10<SP>7</SP> pounds per square inch. The glass may be chemically tempered using molten KNO 3  at 800 F. for 16 hours, to form a surface compressive stress layer of thickness more than 25 microns.
Patent GB-759282-A (GB)
Title: Improvements in or relating to magnetic sound translating head assemblies
IPC: G11B5/74
Filed: 1953-12-22
Abstract: 759,282. Magnetic recording and reproducing heads. COLE, Ltd., E. K., KNIPE, A. R., and SAUNDERS, E. G. T. Dec. 22, 1954 [Dec. 22, 1953], No. 35556/53. Class 40(2) In a magnetic transducer assembly for utilizing two tracks on sound and picture film, two transducer heads 4 are connected together in such a manner that extraneous fields tend to be cancelled out. The assembly comprises a central recessed guide portion 1 over which the film passes between guide plates 8 and 11. The individual coils of each transducer head 4 are connected in series in signal aiding relationship but such that an extraneous field tends to be cancelled out. Similarly, each transducer head 4 is connected in series with each other but in a sense tending to cancel out the effect of extraneous fields. It is assumed that the two sound tracks carry the same signals. A hum-bucking coil 9 'is also provided, the position of which is adjustable by means of a slotted spindle 10, access to which by a screwdriver is effected by means of an aperture 13 in a cover plate 12. Two engaging heads 6 are also provided, and these are also connected in a similar manner as the transducing heads 4 to cancel out the effect of extraneous fields. Specification 747,767 is referred to.
Patent GB-184818-A (GB)
Title: Improved indicating attachment for gas meters with combination indicating dials
IPC: G01F15/06
Filed: 1921-11-30
Abstract: 184,818. Gibson, R. K. Nov. 30, 1921. Dials and scales.-Mechanism of the kind de. scribed in Specifications 146,046 and 149,414 [both in Class 106 (i), Calculating &c.], for indicating the volume and calorific value of the gas passing through the meter, comprises (1) a fixed dial R, Fig. 5, reading up to 100,000 c. ft. and indicating by means of a pointer S' carried by a concentric moving dial R' which is graduated in therms and indicates by means of a fixed pointer S<2>, (2) two moving vertical drum scales L, K, Fig. 2, and fixed pointer reading up to 10,000 c. ft. and graduated in therms and cubic feet respectively, (3) a fixed dial P<1> with moving pointer P reading up to 500 c. ft., and (4) the usual pointer and dial showing 2 c. ft. per revolution. A recess V receives a disc V<1> showing the price per therm. The drum scales are secured on a vertical shouldered spindle G<1> by a plate and lock nut X' so that they may be readily changed or zeroized after each survey. The dial R<1> is also readily changeable, when the calorific value is altered, being held in position by a nut X. The scales and pointers are driven from a meter shaft B which indicates two cubic feet per revolution bv a train of worm and wormwheel gearing C C<1>, D<1> E. F G, G<2> H, the worms C and G<2> being double, and the spur wheels C<1> E. G and H having 20, 25, 20, 20 teeth respectively.
Patent GB-487505-A (GB)
Title: Improvements in or relating to liquid fuel burners
IPC: F23D3/00
Filed: 1936-12-30
Abstract: 487,505. Fluid-fuel burners. ASIATIC PETROLEUM CO., Ltd., and RICHARDSON, A. W. Dec. 30, 1936, No. 35750. [Classes 75 (i) and 126] In a burner comprising perforated shells 1, 2 resting on a grooved base filled with asbestos and fed with liquid fuel, air is supplied to the flame issuing from the perforated shells by a central tube 3 fitted at the top with a spreader plate 6 which rests on a sloping cover 4 connecting the tube 3 and shell 1. A perforated plate 7 suspended from the plate 6 maintains the plate 6 in position. The cover 4 and a cover 9 connecting the shell 2 and an outer casing 8 may be formed with slots or perforations. Heat radiating wire coils 13, 14 and a wire gauze mantle 12 may be arranged above the burner. Air-regulating means such as a sliding shutter or fixed and rotatable perforated plates may be fitted at the bottom of the central tube 3 and the spaces between the shells 1, 2 and the tube 3 and casing 8.
Patent GB-1189726-A (GB)
Title: Process for the Modification of Polyamide Fibers
Inventor: JIROU MARCEL GEORGES
IPC: D06P5/22
Filed: 1967-08-04
Abstract: 1,189,726. Polyamide resists. UGINE KUHLMANN. 4 Aug., 1967 [8 Aug., 1966], No. 35909/67. Heading D1B. Synthetic polyamide fibres are modified by treating at pH 3-11 at a temperature of from 40C to the boiling temperature of the bath with a compound of the formula I in which A 1  is a colourless, aliphatic, aromatic or heterocyclic radical, W is a residue of an acylating agent carrying an atom or group of atoms capable of reacting with polyamide fibres and R is a hydrogen atom or an alkyl group having 1-4 carbon atoms, 0.1 to 20% by weight of the polyamide being used. The compound may be applied as a solution or dispersion or in a print paste and the process may start in an acid bath followed by treating in an alkaline bath. In Examples cyanuric chloride derivatives of para-toluene sulphar-amide and parachlorobeneze sulphonamide are used also the -,3 - diohloro quinonalino - 6 -carboxylic acid chloride derivative of para-toluenesulphonamide.
Patent GB-367914-A (GB)
Title: Improvement in electric dry cells
IPC: H01M6/08
Filed: 1930-11-29
Abstract: 367,914. Galvanic batteries. DEIBEL, C. P., 18176, Clifton Road, Lakewood, Ohio, U.S.A. Nov. 29, 1930, No. 36063. Convention date, March 15. [Class 53.] Cells.-To provide a tight joint between the metal container and the seal of a dry cell, the upper edge of the container is turned inwardly and downwardly and is completely embedded within the sealing material, and the turned-over edge is provided with a series of vents. In the form shown in Fig. 1, the edge of the container 1 has gas vents 11 and is bent and embedded in the seal 10a which completely fills the space within the container 1 and the carton 3 above the washer 9. Specification 368,081 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also cells with metal containers which have their edges turned inwardly but not downwardly. The edge may project radially inwards or be bent as shown in Fig. 4 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-1186265-A (GB)
Title: Improvements relating to Connection Means for Tubular Frameworks.
Inventor: HUTCHINGS JEAN FRANCES ALISON
IPC: E04G7/22
Filed: 1967-08-07
Abstract: 1,186,265. Furniture frames. J. F. A. HUTCHINGS and M. HOCKTON. 29 Oct., 1968 [7 Aug., 1967], No. 36065/67. Heading A4H. A tapered nut 1 expands two wedges 2, to grip the inner wall of a tubular structural member and anchor a bolt therein (Fig. 1, not shown). The assembly 1, 2, with or without a plastic coated end plate 4, may be placed in a paper or plastic wrapper and flexible polyurethane 3 foamed therearound, to hold the parts together. Alternatively, the parts may be held with malleable wire. Four mutually perpendicular tubular members may be joined together, by means of a corner piece (Fig. 6, not shown). The tubular members may be of square or rectangular cross-section.
Patent GB-357430-A (GB)
Title: Improvements in and relating to machines for the manufacture of envelopes
IPC: B31B19/00
Filed: 1930-11-29
Abstract: 357,430. Making window envelopes. WINKLER, A. and DUNNEBIER, M., Neuwied, Germany. Nov. 29, 1930, No. 36086. [Class 94 (ii).] In an envelope folding machine in which there is disposed before the folding apparatus and after the feeding or gumming devices an apparatus for stamping out a window and sticking a window piece thereon or for sticking on a lining paper, the blanks, arranged in stepped overlapping relationship, are fed by conveyer bands 1, 2 to a more rapidly moving band 4 and co-operating rolls 5, 6, 7 which draw out the blanks until the window portions and the rear re-entrant angles thereof are exposed. Feed rolls 8, 9 direct the blanks to fingers 10, 11 adapted to engage the front and rear re-entrant corners thereof while a stamp 12 cuts out the window opening. During this operation the front portion of the blank lies between rolls 13, 14 in a cut-away portion of the roll 14, the rolls 13, 14 after the operation passing the blank beneath a type gummer 15 to rolls 19, 20. The roller 19, which is provided with suction openings and draws transparent material from a roll 28, rotates at the same peripheral speed as the blanks and applies thereto the transparent patch severed from the web by cutters 29. The blank may then be conducted to a known drying apparatus.
Patent GB-1513403-A (GB)
Title: High-voltage transformer
IPC: H01F38/42
Filed: 1975-09-02
Abstract: 1513403 Two-part coupling PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES LTD 2 Sept 1975 [5 Sept 1974] 36095/75 Heading H2E [Also in Division H1] A socket output terminal mounted on a high voltage transformer for a television receiver (see Div. H1) comprises a tube 30 containing a socket 31 connected to a transformer lead 29 and containing a triangular spring contact 32 which is to connect with a cable termination connection. Ridges 33 increase creepage path. To clamp the plug connector which is to be inserted, the other end of the tube 30 is provided with tapered claws which are pressed inwards by a nut 35.
Patent GB-1446586-A (GB)
Title: Thermoplastic polyurethanes mixed with ehtylene copolymers
IPC: C08L33/00
Filed: 1973-07-30
Abstract: 1446586 Polyurethane compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 13 June 1974 [30 July 1973] 36137/73 Heading C3R A polyurethane composition comprises a thermoplastic polyurethane, obtained by reacting together excess of an organic diisocyanate with an organic diol having a molecular weight of above 800 and chain-extending the product with a diol having a molecular weight below 250, the reactants being free from olefinic unsaturation, in admixture with at least 1% by weight based on the weight of the mixture of an ethylene copolymer comprising ethylene copolymerized with from 1À7 to 21 mole per cent of one or more unsaturated esters of a fatty acid wherein the ester contains from 3-8 carbon atoms in the molecule. The ethylene copolymer may additionally comprise 0À5-10 mole per cent of one or more unsaturated C 3 -C 7  acids, provided the total quantity of acid plus ester does not exceed 21 mole per cent of the copolymer and that the acid does not react chemically with the polyurethane to an extent which destroys its useful properties, and that the word "acid" includes the salts and anhydrides thereof. Suitable esters are the methyl, ethyl or butyl ester of acrylic or methacrylic acid, or vinyl acetate. Suitable ethylene copolymers are copolymers of ethylene/methyl methacrylate/methacrylic acid or of ethylene/ methyl methacrylate/vinyl acetate/methacrylic acid. The composition preferably contains 2-5% wt. of ethylene copolymer. A preferred composition is in the form of a dry blend of granules of the thermoplastic polyurethane and granules of the ethylene copolymer. In the examples granules of various ethylene-vinyl acetate copolymers and optionally carbon black were blended with granules of a thermoplastic polyurethane prepared by reacting poly-(ethylene adipate) of M.Wt. 2000 with 4,41-diphenylmethane diisocyanate and subsequently chainextended with 1,4-butane diol. The dry blends were melt extruded into films, which were wound on to reels.
Patent GB-975633-A (GB)
Title: Method and apparatus for making polytetrafluoroethylene tubing
Inventor: SLADE WINTON LLOYD
IPC: B29C48/475
Filed: 1961-10-09
Abstract: 975,633. Moulding polytetrafluoroethylene tubing. RAYBESTOS-MANHATTAN Inc. Oct. 9, 1961, No. 36162/61. Heading B5A. In a method of forming polytetrafluoroethylene tubing, having an improved resistance to seepage by low viscosity fluids, an annular billet, comprising finely divided polytetrafluoroethylene particles and a volatile extrusion aid, e.g. white oil or naphtha, is forced by a ram 18 between a hollow mantle 10 and a mandrel 15 and through an annular space bounded by a tapered circular surface 12 of the die, and mandrel 15 in which the cross-sectional area of the preform is reduced by at least 90%, thus forming the resin particles into longitudinally extending fibres, the outer and inner layer fibres then being displaced in opposite directions relative to each other by means of grooves 16 and 19 in the mandrel and the die, the crosssectional area in this grooved region up to the cylindrical annular die formed by opposed surfaces 14, 17 being further reduced by between 50 and 95%, thus making the respective surface layer fibres lie at an angle of at least 15 degrees with respect to each other, passing said billet through said annular die opening to form a tube, removing the extrusion aid, and sintering the tube. There may be provided rotational movement between the die and the mandrel, or the latter may remain in fixed relationship. Alternative apparatus is described with reference to Figs. 3 and 5 (not shown), the latter being for the wall tubes of large diameter.