baber/WOPTO huggingface dataset:
Patent GB-770896-A (GB)
Title: Improvements in and relating to rectifier circuits
Inventor: GRAFF-BAKER WILLIAM SEBASTIAN
IPC: H02M7/06
Filed: 1953-11-20
Abstract: 770,896. Rectifying. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 19, 1954 [Nov. 20, 1953], No. 32288/53. Class 38 (2). In a rectifying circuit supplying a D.C. load from an A.C. source G having a high internal inductive reactance, a capacitor C is connected across the power source whereby the ratio of D.C. power to V.A. output of the source is improved. Fig. 2 shows curves of the generated voltage Eg, and voltage Eo at the input to the rectifier R, and the rectifier input current Ii, the capacitor current Ic and their sum, the source current Ig. The capacitor C must be sufficiently large that the current Ic does not reverse at the moment of commutation. The waveform of the current input to the rectifier may be arranged to be that obtained without the capacitor from a source of sinusoidal voltage having zero reactance. Where the load is supplied through bridge connected rectifiers from a three-phase source, capacitors may be connected in star or delta across the source, Fig. 4 (not shown). Part of the load may be supplied direct, not through the rectifier without unduly affecting performance.
Patent GB-384776-A (GB)
Title: Improvements in fuses for explosive shells
IPC: C06B33/00
Filed: 1931-11-21
Abstract: 384,776. Projectile fuzes ; fuze compositions. HERCULES POWDER CO., 900, Market Street, Wilmington, Delaware, U.S.A.-(Assignees of Nash, H. E. ; Wilmington, Delaware, U.S.A.) Nov. 21, 1931, No. 32328. Convention date, Aug. 1. Drawings to Specification. [Classes 9 (i) and 9 (ii).] The time fuze composition for the rings of projectile fuzes is made of a mixture of an oxidizing agent, such as barium peroxide, potassium chlorate, or potassium permanganate, with an element of the right-hand column of Group VI of the Periodic table, such as selenium, sulphur, or tellurium, the ingredients being so chosen that when burned together they will not evolve any substantial amount of gas. An inert material such as barium oxide may be added to the mixture. An example contains 15 per cent of selenium and 85 per cent of barium peroxide. The fuze is ventless.
Patent GB-141324-A (GB)
Title: An improved process for deoxidising and refining aluminium
IPC: C22B21/06
Filed: 1919-12-24
Abstract: 141,324. Strasser, A. April 9, 1919, [Convention date]. Dry processes of refining aluminium.-For deoxidizing and refining aluminium, an aluminium cartridge containing potassium phosphide is first added to the metal heated above its melting- point to convert the impurities, silicon, and iron,. into phosphorus compounds; then, at a higher temperature, a second aluminium cartridge, containing one of the metals of the alkaline earths, is added. The alkaline earth metal combines with oxygen present as an impurity, and with the phosphorus compounds, and the oxides formed float on the surface of the aluminium. The Specification as open to inspection under Sect. 91 (3) (a) states also that aluminium alloys may be similarly refined and that lithium may be used in the second aluminium cartridge added. This subject-matter does not appear in the Specification as accepted.
Patent GB-323863-A (GB)
Abstract: 323,863. Plummer, E. Nov. 16, 1928. Gloves &c.-A hand tool for gardening purposes, such as weeding, comprises one or more hoe-shaped, fork-shaped, or other relatively long prongs mounted upon a flexible carrier of fabric, leather, or like material adapted wholly or partially to enclose a human hand. The carrier may consist of a glove 1 with the prongs 2 mounted on the fingers. Each prong may consist of a parallel-sided metal plate 3 pointed at one end and having curved hook or clip members 4 to fit around the glove fingers. It may be provided with one or more holes 5 to receive securing rivets. A modified prong consists of a triangular plate provided with three parallel arms for securing to the back and front of a glove finger, strips of leather .or other reinforcing material being stitched on the finger, so as to enclose the arms. In other modifications, tubular parts or circular bands are provided to encircle the glove finger. The prongs may be made of stainless steel or other non-corroding or rustless metal.
Patent GB-497251-A (GB)
Title: An improved brick moulding machine
IPC: B28B13/02
Filed: 1937-11-24
Abstract: 497,251. Moulding bricks. SHORROCK, R. T. L. Nov. 24, 1937, No. 32390. [Class 87 (ii)] A brick-moulding machine of the repress type is provided with an additional finishing mould in which bricks, fed from the repress mould, are subjected to surface treatment by rollers. The machine described in Specification 472,477 may be adapted according to the invention or it may be provided with an attachment comprising a finishing mould 27 attached in place of the delivery shoot and a plunger 31 carried by a plate 33, bolted on the reciprocating head 32, and supported by a strut 34. The mould 27 has smooth or patterned rollers 28, 29 let into its walls on two or more sides. Alternatively the mould may comprise an open framework supporting the rollers. The bricks are pressed through the mould 27 by the plunger 31 and are delivered by a shoot 35 on to a conveyer 36. Wire brushes may be provided to roughen the brick on its entrance into the mould and sand may be injected into the mould to coat the brick. The rollers may be heated electrically or by steam.
Patent GB-1366007-A (GB)
Title: Heater for electron discharge device
IPC: C04B41/88
Filed: 1972-07-12
Abstract: 1366007 Coated particles; coated wire GTE SYLVANIA INC 12 July 1972 [15 July 1971 (2)] 32665/72 Heading B2E [Also in Divisions C7 and H1] Particles of Al, Be or Zr oxides are coated with W using a W resinate, and then coated with Pt or Ir or Al or Zr oxide. The tungsten resinate is heated to 500 to 550‹C to form tungsten oxide and then heated to 875‹C to reduce the oxide to W. The Pt may also be applied from a resinate. The particles may be formed into a suspension with butyl acetate and nitrocellulose and applied to an aluminium oxide (Al 2 O 3 ) coated Mo or W wire to form a heater for an electron discharge device.
Patent GB-1017886-A (GB)
Title: Method for producing wool-like bulky synthetic yarn
IPC: D02G1/18
Filed: 1964-08-11
Abstract: Bulky yarn having tensile strength, elasticity, handle, appearance and other properties similar to wool yarn is produced by blending high- and lowshrinking thermoplastic fibres; wet or dry heat-treating the blend in the form of (wound) sliver, top, untwisted strand or roving to produce fine crimps therein as a result of differential fibre shrinkage and frictional engagement and mutual interference between the fibres; simultaneously therewith i.e. by the same treatment, or separately therefrom, setting the crimps, then spinning the sliver &c.  The two fibres may be of similar or different materials e.g. nylon, polyesters, polyacrylies, polypropylene, produced by stapling tows of drawn and undrawn continuous filaments which may also be heat-treated, and the crimped fibres may be further blended e.g. by sliver doubling, with other untreated or differently treated fibres of similar or different materials e.g. wool, cotton, rayon, nylon, polyesters or copolyesters, polypropylene.  The heat treatment may be effected by hot water, hot air, steam at atmosphere or superatmospheric pressure or hot gases or vapours, within a temperature range of 80-200 DEG C.  The bulky yarn may be used as the filling of a fabric e.g. with cotton yarn weft, and the strains caused by weaving then removed by treatment with hot water or dyeing so as to leave a degree of elasticity in the weft-wise direction.
Patent GB-1062034-A (GB)
Title: Electric motors adapted to operate with a predetermined degree of out of balance
Inventor: WALKER THOMAS JOHN
IPC: H02K7/06
Filed: 1963-08-20
Abstract: 1,062,034. Vibratory mechanisms. BLENDING MACHINE CO. Ltd., and TRITON ENGINEERING (SALES) Ltd. Aug. 17, 1964 [Aug. 20, 1963], No. 32823/63. Heading F2X. An unbalanced rotary vibrator as described in Specification 899,409 has a " fixed " mass 11 clamped to each end of the rotor shaft 10, the mass 11 comprising a circular disc portion 111 and a segmental portion or weight 112, which may be integral with the disc. " Adjustable " segmental weights 14 are secured to each end of the shaft by screws 15 and are provided with two bolt-receiving openings 141 subtending an angle of 10 degrees at the shaft. Openings 113 at intervals of 20 degrees are provided around the periphery of the discs 111 so that the weights 14 may be adjusted at 10-degree intervals around the shaft and clamped in any required position by bolts 16.
Patent GB-983607-A (GB)
Title: Novel 4,5-seco-steroid compounds and methods for the formation thereof
IPC: C07C49/643
Filed: 1962-07-20
Abstract: The invention comprises 3-chloro-4,5-seco-estra - 2, 9 - diene - 5,17 - dione, 4,5 - seco - estr - 9 - ene - 3,5,17 - trione and a method for the preparation thereof by condensing a 5-enamino-des - A - estr - 5(10),9(11) - dien - 17 - one of the general formula <FORM:0983607/C2/1> (wherein R and R1, which may be the same or different, each represents an alkyl group having from 1-6 carbon atoms, or they, together with the N-atom, constitute a substituted or unsubstituted nitrogen or nitrogen and oxygen containing heterocyclic ring system) with a 1-halogeno-3-chloro-2 -butene to obtain 3-chloro-4, 5-seco-estr-2,9-diene-5,17-dione which is subjected to acid hydrolysis to obtain 4,5-seco-estr-9-ene-3, 5,17-trione. Specification 983,608 also is referred to.
Patent GB-1083489-A (GB)
Title: Indicator apparatus
IPC: G01F23/292
Filed: 1966-07-21
Abstract: 1,083,489. Liquid level indication. GENERAL MOTORS CORPORATION. July 21, 1966 [Sept. 7, 1965], No. 32843/66. Heading G1H. In a device for indicating the liquid level in a container, such as a motor vehicle fuel tank, a number of light transmission elements 12 have one end inserted and arranged in graduated steps in the container 15 so that the ends not covered by liquid will transmit light from an electric lamp 23 to a level indicator 10.
Patent GB-1021191-A (GB)
Title: Photographic materials containing colloidal substances and their use in photographic processes
IPC: G03C1/825
Filed: 1962-08-27
Abstract: 1,021,191. Photographic silver halide material. EASTMAN KODAK CO. Aug. 27, 1962 [Aug.25, 1961], No. 32853/62. Heading G2C. A photographic silver halide material comprises a layer on the same side of the support as the emulsion layer obtained by coating a composition containing a hydrophilic binder, and a colloidal dispersion of silver, gold, platinum or palladium or a sulphide of silver, zinc, lead, nickel, cadmium or copper, and to which has been added before coating a water-soluble organic sulphur-containing compound which breaks down to give a thiol when added to the composition. The thiol-yielding compound may have the general formula: - wherein Z is vinylene, ethylene, phenylene or naphthalene, Y is alkyl, substituted alkyl, aryl or substituted aryl, R is hydrogen, alkyl, alkoxy, aryl, substituted aryl or alkylmercapto, X is an anion and n is an integer greater than 1; or it may be one of the compounds described in Specifications 613,400 and 616,822, or p-thiocresol-benzal aniline adduct, or a compound of the formula: where R 1  is hydrogen or R 1 , R 2  and R 3  are alkyl groups of 1-8 carbon atoms, aryl groups, substituted alkyl or aryl groups or heterocyclic groups. Examples of such compounds are given where R 1  is phenyl or hydrogen, R 2  is phenyl, p-hydroxyphenyl or p-methoxyphenyl and R 3  is carboxymethyl, #- diethylamino-ethyl, #- morpholino - ethyl, #-hydroxyethyl. The invention is of use in preventing the colloidal metals or metal sulphides, intended for use in filter layers or as speed increasing agents, acting as development nuclei.
Patent GB-452501-A (GB)
Title: Improvements in or relating to reflectors for lamps
IPC: F21V7/04
Filed: 1934-11-15
Abstract: 452,501. Street lamps; reflectors. WARDLE ENGINEERING CO., Ltd., and HOPWOOD, E. E., Elsinore Road, Old Trafford, Manchester. Nov. 15, 1934, No. 32856. [Classes 75 (ii) and 75 (iv)] A reflector for use with an elongated light source 10 in a street lamp, has reflecting surfaces 12, 13, 14 which are respectively concave, cylindrical, and concave and convex in planes at right angles to one another, these surfaces providing two composite beams having their maxima at angles less than 180‹ apart on opposite sides of the light source. The reflecting surfaces are similar on both sides of the light source. The surface 12 may be formed by the rotation of a parabola about a horizontal axis, and the other surfaces 13, 14 may also be parabolic in section. The reflectors are attached to the frame 6 by being embedded in cement and by means of clips 15. The light source is supported by a holder 8 and a helically coiled ring 11, and may be a gaseous discharge, or a tubular incandescent lamp.
Patent GB-449740-A (GB)
Title: Improvements in and relating to a control or actuating unit for use with signalling systems for motor vehicles
IPC: B60Q1/36
Filed: 1935-11-27
Abstract: 449,740. Retractive switches ; actuation of switches. TRICO PRODUCTS CORPORATION, 817, Washington Street, Ruffalo, New York, U.S.A. Nov. 27, 1935, No. 32861. Convention date. Feb. 5. [Class 38 (v)] [See also Group XXXVIII] A switch is closed as the result of a manual operation and is opened when pressure on one side of an associated piston is reduced. The invention is described as applied to a switch on a motor vehicle. When the push button 14 is operated the groove 15 moves into the chamber 5 and connects atmospheric pressure to the upper side of piston 6, the under side of which is connected bv means of the pipe 9 to the engine manifold. The pressure difference thus established on the piston forces the piston down until it seats itself on the lower end of the chamber, a contact on the piston engaging the contact ring 7 to operate the signal. When the engine is speeded up the pressure difference on the two sides of the piston is reduced so that the spring 11 is effective to restore the switch.
Patent GB-886841-A (GB)
Title: Improvements in or relating to holders for motor vehicle licence discs and the like
IPC: B60R13/10
Filed: 1959-09-29
Abstract: 886,841. Holders for motor vehicle licences and the like. RAND SPA RES & ACCESSORIES (PROPRIETARY) Ltd. S ept. 29, 1959 [Nov.24, 1958], No. 33025/59. Class 73 A holder for a motor vehicle licence or the like comprises an annular rim member 1 of rubber or like flexible material having the flanged cross-section shown, the licence 6 being held in the rim by a stiff backing member 5 which engages behind the rear flange 3 of the member 1. The front flange 4 is secured to the windscreen 2 by adhesive. The backing member 5 is provided with a shallow central recess into which is fitted and secured a badge assembly comprising the badge proper 7, a contrastingly coloured disc 8, a recessed brass holder 9, a further contrastingly coloured disc 10 and a metal backing disc 11.
Patent GB-393608-A (GB)
Title: Improvements in or relating to the manufacture of cyclic diethers
Filed: 1931-11-30
Abstract: Cyclic diethers are produced by condensing aldehydes or their polymers or ketones with polyhydric alcohols in the presence of restricted quantities of water, not more than two molecules of water to one molecule of aldehyde or ketone.  The reaction may be effected with the aid of ehterification catalysts such as sulphuric, hydrochloric, phosphoric or benzene sulphonic acid, ferric or zinc chloride or the catalysts described in Specification 394,679, namely acid sulphates and phosphates, pyrosulphates and pyrophosphates.  The aldehyde may be employed in the form of a highly concentrated solution.  In an example, equimolecular proportions of formaldehyde (50 per cent solution) and ethylene glycol are reacted in presence of sulphuric acid in a pressure vessel at 140 DEG  C.  The reaction of trioxymethylene with glycol is also mentioned.  Specification 394,678 also is referred to.
Patent GB-870636-A (GB)
Title: A hydrogen actuated mechanical control device
IPC: B64C13/00
Filed: 1959-09-30
Abstract: 870,636. Gaseous pressure actuated singlestroke apparatus. UNION CARBIDE CORPORATION. Sept. 30, 1959 [Oct. 22, 1958], No. 33119/59. Class 8(2). A single-stroke piston 24 serving to control a steering fin 38 is actuated by gaseous hydrogen leaving the warm end of a vaporizing coil 17 supplied at the cold end with liquid hydrogen from a heat insulated storage container 12. A pair of two-way valves 20, 21 connected by a link 22 which may be manually or electrically controlled serve as inlet and exhaust valves respectively according to their setting.
Patent GB-773904-A (GB)
Title: Improvements in, or relating to, building panels
Inventor: HINCHLIFFE ERNEST DARBY
IPC: E04C2/54
Filed: 1954-11-17
Abstract: 773,904. Building panels. HILLS (WEST BROMWICH), Ltd. Nov. 14, 1955 [Nov. 17, 1954, March 10, 1955], Nos. 33238/54 and 7001/55. Class 87(1) A building panel comprises a dished opaque body 1, preferably of aluminium or other sheet metal, having a sheet 3 of transparent or translucent material extending across its mouth. The sheet 3 seats on a lip 2 provided around the periphery of the dished body and is secured thereto by means of a channel section metal frame 4 having a lining 5 of waterproofed, compressible and preferably adhesive substance, e.g. mastic-impregnated fabric. According to the earlier Provisional Specification, the frame 4 may be replaced by a channel formed along the outer edge of the lip 2. A pad of glass fibre or like fibrous material of depth less than that of the dished body may be secured to the base of the body within the sealed space 6. The internal body surface, or the exposed surface of the pad may be coloured or treated to give it a decorative appearance.
Patent GB-1403382-A (GB)
Title: Chromatography
IPC: G01N30/32
Filed: 1972-07-17
Abstract: 1403382 Liquid level control SUOMEN SOKERI OSAKEYHTIO 17 July 1972 [1 Oct 1971] 33328/72 Heading B1H [Also in Division Gl]  Flow control apparatus for a chromatographic fractionating column includes a liquidpervious plate assembly adapted to float on the liquid layer overlying an ion-exchange resin bed within the column and a detection device carried by the assembly responsive to the thickness of the liquid layer reaching a predetermined minimum for opening a normallyclosed valve to supply additional liquid to the column so as always to maintain a liquid cover over the beds independently of whether the upper surface of the bed moves vertically within the column. As shown a plate 18 which may be of polystyrene is perforated with holes 28 to allow indirect access of liquid from nozzles 16 to bed 12 of ion exchange resin. A mesh 26 carried below the plate enters the bed when the plate is at its lowest position and ensures a smooth surface. Detector 30 is responsive to the thickness of the liquid layer and operates valve 34.
Patent GB-1401965-A (GB)
Title: Indicator mechanism
IPC: G07F9/02
Filed: 1971-07-15
Abstract: 1401965 Indicator mechanism for article vending machines GENERAL FOODS Ltd 17 July 1972 [15 July 1971] 33371/71 Heading T A mechanism indicating e.g. when a dispenser of cups or other articles 5 is empty, comprises a U-plate 4 pivoted at 2 engaged at one end by the articles to display at the other end e.g. one sign 6, and released when there are no articles so as to pivot downward under gravity to display a second sign 3.
Patent GB-974924-A (GB)
Title: Improvements in or relating to apparatus for detecting gaseous halogen
IPC: G01N27/12
Filed: 1961-09-19
Abstract: 974, 924. Detecting impurities in fluids. R. LOTTENBACH. Sept. 19, 1961, No. 33441/61. Heading G1N. In a halogen gas detector the hot resistance of a porcelain or quartz tube 21, Fig. 2 between spaced electrodes 22, 23 is measured by a meter. 26 to indicate the presence of halogen in the vicinity of the tube, the tube being heated to a semiconductive state by a coil 25. In a modified arrange - ment, described with reference to Fig. 1 (not shown), the resistance between a centre tap on the heater coil which is wound around the outside of a tube and an electrode on the inner surface, is measured. Changes of body conductivity and surface resistance, resulting from ionization of the halogen by the hot body are said to occur as a result of ion absorption.
Patent GB-956874-A (GB)
Title: A process for the production of coated polyolefine films
Inventor: STEAD BRIAN DOUGLAS
IPC: C08J7/052
Filed: 1961-09-19
Abstract: Oriented and unoriented polyolefine films are subjected to surface oxidation treatment and coated with a composition comprising a thermoplastic polymer and from 0,5-10% by weight thereof of a thermosetting resin in a liquid medium.  Thereafter, the coated film is heated to dry the coating and to at least partially cross-link or cure the thermosetting resin.  Specified surface oxidation processes are treatment with H2SO4, HNO3, ozone, chromic acid, halogens under free radical forming conditions, exposure to high voltage electric stress accompanied by corona discharge or to U/V, a -, b -, or g -radiation in the presence of oxygen or exposure to a flame. The thermosetting resin may be a phenol-formaldehyde, urea-formaldehyde, melamine-formaldehyde, epoxy, N-alkoxy methyl polyamide or cross-linkable thermosetting acrylic resin. Specified thermoplastic polymers are copolymers of vinylidene chloride with acrylonitrile, methyl acrylate or ethyl acrylate (preferred); P.V.A.; partially hydrolysed P.V.A.; copolymers of butadiene with styrene, acrylonitrile or methyl methacrylate; methyl methacrylate/methacrylic acid copolymers; copolymers of terephthalic acid with a glycol and another dicarboxylic acid, copolymers of vinyl chloride with ethylene, vinylidene chloride or vinyl acetate and copolymers of vinyl acetate with ethylene. The coatings are preferably applied as aqueous solutions or dispersions and may optionally also comprise cationic emulsifiers, dyes, pigments, anti-oxidants, lubricants, U/V stabilizers and anti-blocking and slip agents, e.g. waxy agents such as ester, ether and other hard waxes, fatty acid amides, hydrogenated castor oil and comminuted solids, e.g. starch, talc, ZnO, CaCO3, MgCO3, silica, kaolin, TiO2, diatomaceous earths, inorganic oxides, carbonates and silicates and finely dispersed polypropylene and P.V.C.  Specifications 715,914, 785,505 and 932,652 are referred to.
Patent GB-206725-A (GB)
Title: Improvements in or relating to bed bottoms
IPC: A47C23/28
Filed: 1922-12-08
Abstract: 206,725. Cole, W. J. Dec. 8, 1922. Mattresses.-In a spring mattress or bed bottom of the type having two series of flexible strands 8, 17, one series extending crosswise of the other, and retractile members or springs 11, 20 associated therewith, the overlying adjacent portions of the strands are freely directed through depending flanges 22 of discs 21. The springs may be interposed between adjacent discs, and the tension of the strands may be varied bv means of rollers 9, 14 held in adjusted position by pins 25.