baber/WOPTO huggingface dataset:
Patent GB-782370-A (GB)
Title: Improvements in or relating to electric lighting fittings
Inventor: WIDNALL FRANK
IPC: F21V17/00
Filed: 1954-11-29
Abstract: 782,370. Lighting fitting for tubular electric lamps. BRITISH THOMSONHOUSTON CO. Ltd. Nov. 21, 1955 [Nov. 29, 1954], No. 34546/54. Class 75(4) A lighting fitting for a tubular electric lamp comprises a central unit for carrying the accessories for the lamp and an initially separate pair of arms preferably of light weight, secured to the central unit to extend in opposite directions from opposite ends, said arms having adjacent their outer ends respective lamp holders for receiving the lamp and being readily transferable from such extending positions to lie alongside the central unit. As shown the central unit 1 consists of a die-casting 2 forming, with a plate 6 an enclosure for the starting and control components for the fluorescent lamp 4, the inside surface of the die-casting being formed with mounting bosses 5 for this purpose and with bosses 5<SP>1</SP> for securing the plate 6 by screws 7. Apertures 8 receive fixtures for supporting the fitting and an aperture 9 in the plate 6 may accommodate a starting switch. Each end of the central unit 1 is recessed at 11 to receive one end of a hollow arm 12, preferably of rectangular cross-section, flush with the plate 6. The end portion of the arm 12 has apertures in its upper surface through which bosses 13 on the central unit 1 extend and the arm is secured to these bosses by screws 14. Each arm carries on its underside a lamp holder 15. By undoing the screws 14 the arms may be detached and laid alongside the unit 1 for packing. The arms and unit 1 have each a length of the order of one-third the overall length of the fitting. In alternative constructions the arms are attached at the upper surface of the unit 1 and are inclined downwardly to avoid fouling of the central unit by the lamp 4. Instead of fixing by screws, the arms may be hinged to the central unit 1 and the top side of the arms may be apertured or slotted to receive fixtures helping to support the weight. of the arms.
Patent GB-1475137-A (GB)
Title: Apparatus and method for forming a portion of a tube on a  toroidal core
IPC: B29D23/24
Filed: 1974-08-06
Abstract: 1475137 Sheet forming of tubes CATERPILLAR TRACTOR CO 6 Aug 1974 [6 Aug 1973] 34625/74 Heading B5A A tyre inner tube is formed from elastomeric sheet material by vacuum forming the material on to a toroidal core 10, which may be porous, so that it extends slightly beyond the midcircumferential plane of the core, removing surplus sheet material, inverting the core with the formed tubular part and repeating the process to apply a second part of the tube and then bonding the overlapping edges of the tube parts together; the core is removed by disintegration and removal from an opening in the tube. The sheet is supplied from a roll 30, and passes over a ring 16 surrounding the core and which, together with a base plate 18, support plate 12 and perforated plate 24 provide a chamber 33 to which a vacuum is applied. A cutter 40 with cutting members 42, 44 is lowered to remove surplus material. The edges of the tubular parts are bonded together by rollers 58 on pivoted arms 54, 56 urged together by means 60 and driven about a shaft 50.
Patent GB-212007-A (GB)
Title: Improvements in the process of and means for casting number or like identification tablets
IPC: B22C9/06
Filed: 1922-12-20
Abstract: 212,007. Craddock, F. Dec. 20, 1922. Name plates. - Metal moulds for casting number and name plates comprise two main parts dowelled at 3, one part being plain to form the back of the plate, and the other having a dovetail or other groove to receive interchangeable dies 7 bearing the character required. Special end forming dies are provided carrying projections 12 to form screw holes. One end die 9<a> is anchored by a screw and lug and the other is slidably held in position by an adjustable spring 8. Blank dies to act as spaces are provided and the plain surfaces of all the dies may be roughened to form a corresponding surface on the cast plate to render less prominent any lines produced at the junctions of the dies.
Patent GB-787908-A (GB)
Title: Process for the manufacture of indanthrone
IPC: C09B5/48
Filed: 1954-11-30
Abstract: Indanthrone is prepared by fusing 1-aminoanthraquinone with a small proportion, i.e. not exceeding about four times the weight of 1-aminoanthraquinone used, of an alkali metal phenolate in the presence of an oxidizing agent, wherein phenol or water or both are maintained in the melt in sufficiently high concentration to keep the melt in a stirrable condition.  Specified alkali metal phenolates are the sodium and potassium salts of phenol and the cresols, potassium phenolate being preferred.  Specified oxidizing agents are manganese dioxide, ferric oxide and alkali metal nitrates, perborates, persulphates and chlorates.  Potassium carbonate or boric acid may also be added to the melt.  In examples: (1) a melt consisting of equivalent amounts of potassium hydroxide and phenol, water, 1-aminoanthraquinone, sodium chlorate and manganese dioxide is heated to give indanthrone; (2) a melt consisting of potassium hydroxide and a slight excess of phenol or o-cresol, potassium carbonate, 1-aminoanthraquinone, sodium chlorate and manganese dioxide or ferric oxide is heated to give indanthrone; (3) as in (2) but a mixture of sodium and potassium hydroxides used.  Specification 5959/06, [Class ii], and 703,377 are referred to.
Patent GB-908518-A (GB)
Title: Improvements in or relating to analogue computers
IPC: G06G7/161
Filed: 1958-10-29
Abstract: 908,518. Electric analogue multiplier circuits. GENERAL PRECISION Inc. Oct. 29, 1958 [Oct. 30, 1957], No. 34731/58. Class 37. [Also in Group XL (c)] A multiplier comprises a circuit which provides an output pulse train, the average voltage of which corresponds to the product of two D.C. analogue voltages, the first of which (Vy) time-modulates two pulse trains and the second of which, Vx, is fed to a transistor switching device where it amplitude-modulates said pulse train, the output from the transistor switch being said output pulse train. In the embodiment shown, a sawtooth voltage is converted into the two pulse trains inverse with respect to one another by a limiter transistor amplifier 107 time-modulated in accordance with the first D.C. analogue voltage (Vy) applied at terminal 120. The pulse trains on conductors 108, 110 are taken to a transistor switching circuit 112 which also has an input reference voltage V R , to provide feed-back through a filter 113 to the amplifier 107. It is proved mathematically in the Specification that the time modulation of the output on conductors 108, 110, is thus made directly proportional to V y  and is in fact proportional to Vy/V R . Conductors 108, 110 are also connected to the bases of transistors T-1, T-2, respectively, of the switching circuit 121, the emitters of which are connected together. The other D.C. analogue voltage Vx is applied at terminal 125 to the collector of T-1 through an inversion amplifier 126 and directly to the collector of T-2. Amplifier 107 is arranged to provide output pulses of amplitude slightly greater than maximum Vx so that the output from circuit 121 will consist of a train of pulses time-modulated in accordance with Vx and amplitude limited in accordance with Vy. This output is averaged in the filter 123 connected to the transistor emitters and will thus be an analogue of the required product Vx X Vy. The transistor amplifier 107 may be replaced by a vacuum tube amplifier or by a bi-stable circuit.
Patent GB-504055-A (GB)
Title: Improvements in or relating to electric lamp-holders
IPC: H01R33/46
Filed: 1937-12-16
Abstract: 504,055. Electric - lamp holders. CRABTREE & CO.. Ltd., J. A., McLOUGHLIN, H. F., and HARRISON, B. G. Dec. 16, 1937, No. 34805. [Class 38 (i)] A lamp holder has spring- pressed plunger contacts i formed integral with terminals d and mounted in cavities b in the body of the holder, the lower ends of the plungers being reduced in diameter to enable the springs k to be passed over them after inserting the plungers in the cavities. The lower ends of the springs are of smaller diameter than the upper ends and abut on shoulders formed on the plunger or engage with a threaded portion thereof. Alternatively an inturned end of the spring may enter a transverse hole or recess in the plunger. The terminals d are square or have a flat side to co-operate with a projection e on the body to prevent rotation of the plunger. Between the contacts is a recess l shaped to follow the curvature of the cavities b and so to form a thin wall to prevent irregularities arising during curing of the moulded body. Specifications 396,727 and 408,112, [both in Group XI], are referred to.
Patent GB-181404-A (GB)
Title: Improvements in gas manufacture
IPC: C10B1/04
Filed: 1920-12-10
Abstract: 181,404. Helps, G. Dec. 10, 1920. Coking processes; producers.-Low-grade gases are enriched by being superheated, preferably in a bed of incandescent fuel, and passed through a retort containing coal shale &c. Gas from a producer a is superheated by passage through a bed of incandescent coke g, previously blown up with air from an inlet l the waste gases passing by a pipe k to a jacket surrounding a retort r and escaping by an outlet n. The superheated gas is passed through the retort and partly distils the fuel therein, the rich gas mixing with the lowgrade producer gas and leaving by an outlet p, the resulting coke falling into shoot s. In another form,_ the retort is situated in and surrounded by the coke g in the gas-superheating chamber a. According to the Provisional Specification, the superheating-chamber may be dispensed with and the retort heated by combustion of a part of the low-grade producer gas, or the waste gases from the blow may be used to heat up the chequer work in regenerators, which are then used to superheat the low-grade gas. Specification 181,403 is referred to.
Patent GB-1123004-A (GB)
Title: N-substituted octadecadienoic acid amides
IPC: A61K31/135
Filed: 1965-08-13
Abstract: The invention comprises (1) novel octadecadienoic acid amides of the formula C17H31CONHQ (wherein Q is hydroxycycloalkyl, alkoxycycloalkyl, 2- or 3-hydroxy-phenyl, alkoxy-aryl, halo-aryl, haloalkyl-substituted aryl, alkyl-substituted haloaryl, alkoxy haloaryl, haloalkyl-substituted haloaryl, aralkyl substituted in the aryl portion by alkyl, aralkyl in which the alkylene chain is branched, hydroxyaralkyl or alkoxyaralkyl, of at most 36 carbon atoms); (2) the preparation of these amides from the appropriate acids or their halides or lower alkyl esters and the appropriate amines; and (3) the preparation of these amides and of the amides of formula (I) described in Specification 1,057,742 from the appropriate mixed anhydrides C17H31CO.O.CO.Q11 (wherein Q11 is C1- 20 alkyl or alkoxy) and the appropriate amine in the presence of a basic condensation catalyst.ALSO:Agents for lowering the cholesterol level in the blood comprise one or more octadecadienoic acid amides of the formula C17 H31 CONHQ (wherein Q is hydroxycycloalkyl, alkoxycycloalkyl, 2- or 3-hydroxyphenyl, alkoxy-aryl, halo-aryl, haloalkenyl-substituted aryl, alkyl-substituted haloaryl, alkoxyhaloaryl, haloalkyl-substituted haloaryl, aralkyl substituted in the aryl portion by alkyl, aralkyl in which the alkylene chain is branched, hydroxyaralkyl or alkoxyaralkyl, of at most 36 carbon atoms) and a pharmacologically acceptable carrier.  They may also contain linoleic acid.
Patent GB-407152-A (GB)
Title: Improvements relating to the lids or covers of saucepans and like cooking utensils
IPC: A47J36/06
Filed: 1932-12-09
Abstract: 407,152. Saucepan &c. lids. MARSDEN, D. K., 195, Mottram Road, Stalybridge, Cheshire. Dec. 9, 1932, No. 34906. [Class 66.] Saucepan &c. lids are supported in erect position when removed from the pans by pivoted legs a which lie flat on the lid when in position covering the pan. The leg shown is formed of sheet metal and loosely mounted in a hinge barrel formed on an attachment part b secured to the lid by one of the handle rivets e, a tab d extending from the part forming the hinge-pin serving as a stop to limit the outward movement of the leg. The leg may be made of wire and mounted in an attachment part clipped to one of the end parts of the handle.
Patent GB-1391045-A (GB)
Title: Board game
IPC: A63F3/04
Filed: 1973-07-23
Abstract: 1391045 Board games J F GREGORY 23 July 1973 34915/73 Heading A6H Apparatus for playing a game comprises a board marked with a grid of vertical and horizontal lines representing "highways" passing through "gates" indicated at the grid intersections by symbols representing logical AND or OR gates associated with "control lines" connected to the highways either directly or by way of supplementary gates. The gates are considered to be "opened" or "closed", to control the passage of playing pieces therethrough, according to the logic state of their "control inputs" as determined by the disposition of the various pieces which are moved on the board in accordance with directions furnished in the specification in an attempt by each player to attain a winning position as set out in the rules of the game. Each of two players has eight playing pieces in the form of circular wooden pegs having coloured identifying tips and end portions, of reduced diameter, which can be received by holes in the playing board.
Patent GB-341187-A (GB)
Title: Improvements in and relating to observation shields
IPC: A61F9/06
Filed: 1929-11-15
Abstract: 341,187. Glass manufacture. WARDEN, F. M., 38, South Dearborn Street, Chicago, U.S.A. Nov. 15, 1929, No. 34938. Drawings to Specification. [Class 56.] Glass for the observation means of a welder's helmet or shield consists of siliceous material containing finely divided particles of metal such as gold.
Patent GB-306237-A (GB)
Title: Improvements in or connected with devices for use in the walls of buildings and the like for the passage of articles in one and one direction only
IPC: B65G35/00
Filed: 1927-12-24
Abstract: 306,237. Fullarton, H. N. Dec. 24, 1927. Receiving and delivery devices for doors and the like.-A device for use in the walls of buildings &c. for the passage of articles in one direction only comprises a frame structure 3 fitted in the wall and having circular compartments B<1>, B<2>. B<3> situated side by side and connected by passages F, P<1> and rotors C, D, E, one mounted in each compartment and geared so that they rotate together; one frame structure has an entry opening 2 and a delivery opening 3 and the rotors have transverse pockets 4 - - 8 so arranged that in the rotation of the rotors, the open ends of the pockets in the rotors C, E are successively presented to the entry and delivery opening respectively and adjacent pairs of pockets are successively presented to one another and to a connecting passage without permitting a clear way through the device. The rotors and pockets are arranged so that the articles slide from one to another of adjacent pockets and the rotor E may be provided with pivoted cradles 9 which, by suitable cam and spring action, are caused to grip an article as it slides from the rotor D and to release it as it arrives over a delivery conveyer G; the articles may be delivered to the rotor C by a conveyer F. The opening 2 may be provided with a door K which may be secured by a. lock and the device may be arranged with upright rotors. A device having two interconnected rotors is also described.
Patent GB-1314468-A (GB)
Title: Bone substitute
IPC: C09D4/00
Filed: 1971-07-26
Abstract: 1314468 Artificial bones UNITED STATES ATOMIC ENERGY COMMISSION 26 July 1971 [31 Aug 1970] 34991/71 Heading C4X Artificial bone for animal, including human, use comprises a body of substantially pure porous aluminium oxide impregnated in selected regions with pure polymethyl methacrylate, polymerized in situ. Polymerization is effected by irradiation with gamma rays, and polymer is then removed from regions where bone or tissue growth is to develop. The Al 2 O 3  body may be of 30-50% porosity by volume, the majority of pores being 75-150 microns diameter, and polymer may be removed to a depth of 100- 400 microns from the surface. Polymer removal is effected by masking surface areas where no bone or tissue growth is required with, e.g. a Silastic (Registered Trade Mark) polymer and then subjecting exposed areas to a solvent, e.g. acetone, in an ultrasonic bath. The body may then be sterilized by further gamma irradiation. The product may be used as a bone gap bridge, a skull plate, and in a system for pinning fractures in which the ceramic/polymer is shaped as fasteners and bolts.
Patent GB-438685-A (GB)
Title: Improvements in machines for manufacturing cigars
IPC: A24C3/00
Filed: 1934-12-06
Abstract: 438,685. Cigar-making machines. KRAMER, A., Hansjakobstrasse, Haslach, Baden, Germany. Dec. 6, 1934, No. 35009. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 8, 1935.] [Class 130] In a machine for making short cylindrical cigars or " stumps " by rolling the tobacco in a forming channel and thus shaping a continuous rod which moves axially out of the channel and is cut up into separate cigars, the forming channel h is constituted by an endless band a passing in the form of a loop through an obliquely disposed trough e, leaving open a gap for the entrance of tobacco into the looped band. As shown, the band a runs over end rollers b and rollers l journalled at their ends in bars m, and a feeding and rolling band c running over end rollers d, the main part of the upper run of the band c being in contact with that of the band a. Between the bands a, c near one end of the machine is an inclined trough formed by a troughshaped metal member e and a number of parallel rollers f journalled at their ends in a curved guide g fixed to the machine frame. The band c travels in an S-loop over and through the trough, producing the forming channel h. The lateral displacement of the band c owing to the inclined S-loop is compensated for by the provision in the lower run of the band of an S-loop passing over rollers s parallel to the trough e, f. The rollers f are caused to travel over the surface of the member e by a fluted roller t projecting through a slot in a curved guide member u and engaging between consecutive rollers. The filler tobacco, binders, and wrappers are placed on the band a and fed to the forming channel h between this band and an upper band p passing around rollers n, q, r and between the trough e, f and a frame o, which supports the rollers n and may be pressed downwards by springs. In a modification, the rollers f and guides g are omitted, the S-shaped loop of the band c being in contact with the inside of the member e and with a roller behind the channel h. The Specification as open to inspection under Sect. 91 comprises also modifications in which (1) the bands a, c are omitted and the trough e, f and guides g are somewhat higher and are continued underneath and to the rear of the channel h, the belt p and supporting rollers being correspondingly raised and the rollers f either travelling around the member e or remaining in one position, with or without axial movement ; (2) the tobacco is fed to the channel h from the side of the machine from the end of the channel opposite to the outlet. This subject-matter does not appear in the Specification as accepted.
Patent GB-1157317-A (GB)
Title: Treatment of metal oxides
IPC: C09C3/00
Filed: 1966-08-05
Abstract: 1,157,317. Treating metal oxide pigments. P.P.G. INDUSTRIES Inc. 5 Aug., 1966 [9 Aug., 1965], No. 35094/66. Headings C1A and C1N. Metal oxide pigment, especially TiO 2 , produced by the vapour phase oxidation of the metal halide is digested in the presence of at least 0À1% (preferably 0À2%) of at least one Group II metal cation having an atomic weight less than 200, at a pH below 3 or from 10 to 12. The digestion is carried out at a temperature between 50 C. and the boiling point of the slurry, preferably between 80 and 90 C., for at least 5 minutes, preferably 1 to 10 hours. The pigment may be coated at the same time or subsequently with at least one hydrous oxide of aluminium, titanium and/or silicon. Exhaustive lists of suitable Group II compounds and of other suitable pigments are given.
Patent GB-176887-A (GB)
Title: Improvements in and relating to liquid electric controllers and/or starters for electric motors
IPC: H01C10/02
Filed: 1920-12-15
Abstract: 176,887. West & Co., Ltd., A., and West, A. Dec. 15, 1920. Liquid-resistance controllers are formed with electrodes which fall under gravity subject to retardation by dash-pots or electric braking means. In one construction, an operating-handle 2 is connected by a chain 5 and an arrangement of stationary and movable pulleys to electrodes inside a tank 1. When the handle is moved to either side from the position shown, the chain is slackened off, and the electrodes, which are attached to a chain passing over a braking-pulley 15 and are partly counterpoised by a weight 13, fall slowly and cut out resistance at a rate independent of the operator. The braking effect may depend upon the motor current or upon fans or dash-pots.
Patent GB-1523864-A (GB)
Title: Board games
IPC: A63F3/00
Filed: 1975-08-07
Abstract: 1523864 Board game G L D SPODE 7 Aug 1975 [10 Aug 1974] 35313/74 Heading A6H A board game apparatus comprises a board with islands on it and pieces for placement round the islands, the pieces being of different shapes and/or sizes. The islands are marked on or are proud of the surface and the remaining area is marked in squares, not shown. The pieces consist of four sets of twentyeight pieces 5, Fig. 3, three pieces 6, four pieces 7 and four pieces 8, Fig. 4.
Patent GB-1177702-A (GB)
Title: Silanes containing Phosphorus and Platinum
Inventor: CHATT JOSEPH
IPC: C07F15/00
Filed: 1967-08-01
Abstract: 1,177,702. Platinum-and phosphorus-containing silanes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 July, 1968 [1 Aug., 1967], No. 35332/67. Heading C3S. Platinum- and phosphorus-containing silanes of the formula where R is alkyl or aryl, R<SP>1</SP> is halogen or substituted or unsubstituted alkyl or aryl and Y is halogen, are prepared by reacting a compound of the formula (R 3 P) 2 PtXY, where X is hydrogen or halogen, with a silane HSiR<SP>1</SP> 3 . When X is halogen, an acid acceptor must be present. The compounds of the above formula are novel with the exception that if Y is chlorine and R 3  = (Et) 3 , not more than two of the R<SP>1</SP> groups are methyl and if Y is chlorine and R 3  = (Me 2 Ph) the groups R<SP>1</SP> 3  are not (MePh 2 ). The process may be effected in a solvent and useful temperatures are from 20‹ to 100‹ C. Among the values of R<SP>1</SP> are p-tolyl, p-chlorophenyl and m-(perfluoro-methyl) phenyl in addition to the simple alkyl and phenyl groups.
Patent GB-971155-A (GB)
Title: Arrangement for deriving direct current at substantially constant voltage from alternating current
IPC: H02M7/06
Filed: 1960-10-14
Abstract: 971,155. Rectifying. BROWN, BOVERI & CIE. A.G. Oct. 14, 1960 [Oct. 17, 1959], No. 35355/60. Heading H2F. Constant-voltage D.C. is derived from a high voltage A.C. conductor 2 through a current transformer 1 having a core of high permeability, square-loop magnetic material wound with a secondary winding 3 which supplies a rectifier 4 whose output is smoothed by a capacitor 5 and wherein a compensating winding 7 is included in series with the winding 3. A capacitor 6 and rectifier 8 may be across the series connection. Fig. 7 shows two similar circuits on a common magnetic core arranged to give an output on both input half cycles. A voltage dependent load, e.g. a gas discharge tube, may be connected across the output.