baber/WOPTO huggingface dataset:
Patent GB-465760-A (GB)
Title: Improvements in and relating to the manufacture of selenium surfaces
IPC: H01L21/10
Filed: 1936-02-27
Abstract: 465,760. Light - - sensitive cells; rectifiers. GENERAL ELECTRIC CO., Ltd., JOHNSON, W. A., and TURNER, H. C. Feb. 27, 1936, No. 5888. [Class 40 (iii)] [Also in. Group XXXVI] A selenium surface for a light-sensitive cell or contact rectifier is manufactured as follows : selenium is melted on to a chemically clean base, such as a nickel-plated iron plate, at a temperature of about 250‹ C. and is also applied by sublimation to a plate of freshly split mica or chemically clean glass. When cool the two selenium surfaces are put together under a pressure of the order of 100 lb./square inch and raised to a temperature of 90 to 140‹ C. for a period of 10 to 40 hours, when the change to the metallic state commences. After slow cooling the pressure is released and the plates separated, the selenium coated metal disc being then subjected to heat treatment at about 170‹ C. to complete the charge of the selenium to the metallic state.
Patent GB-401160-A (GB)
Title: Manufacture of threads
IPC: D02G3/34
Filed: 1933-02-27
Abstract: 401,160. Yarns &c. SOKAL, S., 1. Great James Street, Bedford Row, London, -(Kalle & Co. Akt.-Ges. ; 23, Rheinstrasse, Biebrich, Wiesbaden, Germany.) Feb. 27, 1933, No. 5979. [Class 120 (iii).] Threads having special lightreflecting properties comprise a small proportion of artificial fibres having sharp edges. The edged artificial fibre may consist of cellulose hydrate, cellulose esters or ethers, resinous or caoutchouclike substances, or fibroin. The edged fibres may be made by casting, cutting, pressing or rolling, but preferably by cutting superimposed foils of transparent, opaque or coloured cellulose hydrate, giving for example a fibre having a rectangular cross section of À07 X À02 mms.
Patent GB-231648-A (GB)
Title: Improvements in taps or valves for oil drums and the like
IPC: B67D3/04
Filed: 1924-03-08
Abstract: 231,648. Barton, H. W., and Withers, W. March 8, 1924. Piston and tubular valves; protecting covers; locking.-A sliding tubular discharge valve for oil drums, of the kind described in Specification 211,346, is provided with a protecting cap which partly covers the actuating head. The outer tube 1 has a threaded socket head 2 secured to the wall of the drum, and a bayonet slot 4 to receive a guiding pin carried by the inner tube. The latter has an opening 5 in its wall, which is uncovered when the tube is drawn out by means of the serrated actuating head 6. A cap 9, Fig. 5, in the form of a flanged ring, screws into the socket 2 to secure the actuating head when the drum is in transit.
Patent GB-104781-A (GB)
Title: Improvements in Pivotal Joints for Link Work.
Inventor: DOUGLAS WILLIAM
IPC: F16C11/04
Filed: 1916-04-28
Abstract: 104,781. Douglas, W., (trading as Douglas Bros.). April 28, 1916. Spring devices.-Relates to pivotal joints for pairs of links, in which means of adjustment for wear are provided. In the application shown, a cycle fork A connected by a spring bridging-piece A<2> is pivoted to the frame. Washers C secured to eyes B on the fork-ends bear on flanges E<2> on stationary sleeves E. Plugs D screw in the eyes B and abut together or against a central distancepiece G. The parts are kept in position by a bolt H carrying nuts H<2> and cupped washers J. Wear in the parts C, E<2> is adjusted for by removing the bolt and slightly screwing out one or both of the plugs D. The bolt H is then replaced and presses the fork-ends inwards until the plugs abut together or against the piece G.
Patent GB-1023727-A (GB)
Title: Furnace equipment for the heating or heat-treatment of metal tubes
IPC: C21D9/08
Filed: 1965-02-12
Abstract: 1,023,727. Coiling; curving; strengthening. INDUGAS, GESSELSCHAFT FUR INDUSTRIELLE GASVERWENDUNG m.b.H. Feb. 12, 1965 [Feb. 18, 1964], No. 6093/65. Heading B3E. [Also in Division F4] Metal tubing R is bent to follow a circular path by rollers 1, passed through a furnace 3 arranged along the path, and straightened by rolls 4 as it issues from the furnace. The tubing may follow a helical path, passing two or three times through the furnace, which may be in sections. The rolls 1, 4 are adjustable for different diameters of tube, and may be automatically controlled by a device sensing the curvature. Rolls 5 guide the tube R between furnace sections.
Patent GB-144389-A (GB)
Title: Improvements relating to concrete or like structures
IPC: E04B1/21
Filed: 1919-03-12
Abstract: 144,389. Dunn, A. J. March 12, 1919. Reinforced concrete girders and beams; reinforcedconcrete columns.-Precast beams having cogs or fillets d, as described in Specification 122,866, are connected end to end by links c, Fig. 1, which project into spaces formed by omitting the ends of the cogs and hook over bolts between a pair of plates f and over pins b with which the main bars engage. Fig. 4 shows a similar form for use at the junction of four beams; links t, e, Fig. 11, may be used instead of plates. The connecting-plates may be angled as shown in Fig. 8, and may be connected directly to the pins b, the link plates n being then omitted. In the form shown in Fig. 15, transverse beams u engage in pockets x in a main beam and are connected together by stirrups 2, plates 3, and bolts 2<a>. Columns are connected to beams or sills by angle-plates such as 4, Fig. 16, and bolts passing through holes formed in the members.
Patent GB-828511-A (GB)
Title: Improvements in or relating to supervisory signalling arrangements for carrier systems
Inventor: CHITTLEBURGH WILLIAM FRANCIS S
IPC: H04J1/14
Filed: 1958-02-26
Abstract: 828,511. Telephone transmission systems. STANDARD TELEPHONES & CABLES Ltd. Feb. 26, 1958, No. 6167/58. Class 40 (4). [Also in Groups XL (b) and XL (c)] A supervisory carrier, of frequency outside a main communication band, is keyed on and off by a switching circuit employing Zener diodes. Carrier oscillations from a transistor oscillator 1, 2 are applied to a tuned output circuit 32, 33 inductively shunted by a circuit having opposed windings 37, 38, a capacitor 40, Zener diode 39, and load resistance 47, and a D.C. voltage may be applied or not to the diode 39 from a source 41 by a key 42, so that the diode 39 may operate with Zener breakdown low impedance and the carrier output is then effectively short-circuited and suppressed. The key 42 may be operated from a remote point by a line in which case diodes 44, 46 are inserted in the circuit to prevent interference rendering the Zener diode 39 forwardly conducting when its impedance should be high. The key 42 may be operated by a relay driven from a 16- cycle source, or the source may be substituted for the key 42. Different supervisory switches in parallel may be used. The oscillator may comprise a grounded collector transistor 1 coupled to an emitter follower output transistor 2 with its collector transformer coupled to the base of the transistor 1 to generate oscillations of frequency determined by the tuned circuit 25, 26. A Zener diode 10 stabilizes the voltage difference across potentiometer resistors 6, 7 and a rectifier 24 limits the negative excursions of the base of transistor 2 to the voltage at the junction of resistors 7, 8 while positive excursions are limited to the voltage at the junction of resistors 5, 6 by the transistor 1 becoming blocked when its base 12 reaches that voltage, so that rectangular waves of constant amplitude are applied to the tuned circuits 32, 33. In a modification, Fig. 4, four Zener diodes 62, 63, 53, 54 are connected between transformers 58, 61 and D.C. telegraph voltages of opposite polarity applied to the centre taps of the connected secondary 59 and primary 60, so that alternatively the series diodes 62, 63 are conductive and the shunt diodes 53, 54 blocked, or vice versa, and carrier is suppressed or not at the output. Diodes 70, 71 as before, prevent low impedance forward conductions of the Zener diodes. Alternatively, either the series or the shunt Zener diodes may be omitted, and a single polarity D.C. source used.
Patent GB-538978-A (GB)
Title: Apparatus for coating wire or the like with insulating rubber or similar material
IPC: B29C48/06
Filed: 1940-04-08
Abstract: 538,978. Coating wire with rubber by extrusion, vulcanizing. BRIDGE & CO., Ltd., D. (National Rubber Machinery Co.). April 8, 1940, No. 6273. [Classes 70 and 87 (ii)] Between a continuous extruding machine A for coating wire with rubber and a vulcanizer B is situated a movable fluid-tight connector C comprising a tube 20 connected at one end by a bayonet joint 28 to the extruder, its other end being slidable in a packing gland 23 secured to the vulcanizer. Specification 505,163 is referred to.
Patent GB-946695-A (GB)
Title: Improvements in or relating to partitioning means
IPC: E04B2/78
Filed: 1961-02-21
Abstract: 946,695. Partitions for buildings; conduits in partitions. HOLOPLAST Ltd. May 21, 1962 [Feb. 21, 1961], No. 6273/61. Headings EIS and E1V. Partitioning for hospital wards comprises a column 1, Fig. 3, of hollow form housing the conduits 26-29 for one or more services such as for example oxygen and/or other therapeutic gases, water and suction, said column having an outlet or outlets for such services at a convenient height or heights. Transverse members 16, 17 and 18 extend between adjacent columns of the partition, the upper of which is formed with ducting 25 through which the various services may be led from supply sources in the upper part of the room space to the column 1. The spaces between the columns and transverse members are closed by opaque panels 20 and glazing 19 and skirting strips 14, 15 are provided along the base of the partition. One or more roller blinds 33 is incorporated in the partition for obscuring the glazed portions and each such blind is controlled by chords suitably guided and brought to one or each face of the partition. The column 1 is centrally positioned in a length of partitioning extending at right angles to one wall of the ward, and two beds on one side of the partition and two beds on the other side have their heads adjacent to each column 1. The vertical edge of the partition remote from the wall of the ward is contained by a length of partitioning extending parallel to said wall of the ward.
Patent GB-1099802-A (GB)
Title: Improvements in or relating to the manufacture of catalysts
Inventor: OLIVER ROBERT BENNETT
IPC: C01B3/16
Filed: 1964-02-15
Abstract: Comparatives examples are given which describe the conversion of carbon monoxide and steam to carbon dioxide and hydrogen in the presence of conventional oxide catalysts and those made by adding a concentrated aqueous solution of ammonium nitrate to either the oxides of Zn, Cu and Cr or Co, Mg and Cu in the dry state.ALSO:Oxidation catalysts are made by mixing together in the dry state either the oxides of Zn, Cu and Cr or the oxides of Co, Mg and Cu and adding thereto a concentrated aqueous solution of NH4NO3 so as to form a paste, drying the paste and heating to 300 DEG C or above to cause decomposition of the NH4NO3 and cooling the heated mixture to yield the desired product.
Patent GB-920630-A (GB)
Title: Improvements in the fabrication of semiconductor elements
IPC: H01L27/102
Filed: 1960-02-24
Abstract: 920,630. Semi-conductor devices. SHOCKLEY TRANSISTOR CORPORATION. Feb. 24, 1960 [March 6, 1959], No. 6535/60. Class 37. A switching matrix is produced by providing two series of semi-conductor elements, each series being connected to and formed on a metallic strip; the elements are then tested and suitable elements from each strip are crossconnected to form the matrix. Fig. 1 shows such an arrangement comprising semi-conductor elements 10-14 and 17-21. Fig. 3 shows a PNPN memory element consisting of 4 layers 43-46 of alternate conductivity types adjacent an N-type layer 50 which acts as a resistor between layer 46 and electrode 42. N-type layer 50 also co-operates with P-layer 48 to form an avalanche diode in parallel with the resistor so that current first increases linearly with voltage, and then suddenly when the avalanche diode breaks down to provide a low impedance. Alternatively, diffused base transistors or multiple gate field effect transistors may be used. The electrode 42 may consist of molybdenum and the semi-conductor of silicon, the second electrode being provided by gold plating layer 43. The strip shown in Fig. 3 may be cut after the various layers have been provided to form a plurality of separate units; cutting may be effected by etching, or supersonic magneto-strictive means. The assembly may be placed in a sealed ceramic box. Fig. 4 (not shown) shows a matrix composed of crossconnected switching semi-conductor elements. Specification 920,628 is referred to.
Patent GB-1101646-A (GB)
Title: Improvements in or relating to electrochemical systems
Inventor: LIGHTFOOT ROBERT OSCAR
IPC: H01M12/08
Filed: 1965-02-16
Abstract: 1,101,646. Secondary cells with a gas electrode. YARDLEY INTERNATIONAL CORPORATION. 16 Feb., 1965, No. 6660/65. Heading H1B. A secondary cell has a gas electrode, a rechargeable electrode and an auxiliary electrode, the gas electrode including a catalyst capable of promoting the reaction of oxygen with the electrolyte, none of the electrodes containing a substantially radioactive material. The auxiliary electrode is used in recharging the rechargeable electrode when the gas electrode is disconnected. In the preferred embodiment, using an alkaline electrolyte, the auxiliary electrode 17 is a cylinder of stainless steel wire mesh disposed between a bowl-shaped air or oxygen electrode 11 and a flat rechargeable electrode 19 which may comprise zinc, cadmium, tin or iron. The gas electrode may be made of catalytically active carbon, or of high-density carbon impregnated with a finely-divided silver catalyst, or a finely-divided noble metal. The electrode 17 may alternatively be a flat plate or a hollow cylinder of imperforate material. Leads 23 and 27 are connected when the cell is in use and 23 and 25 for recharging.
Patent GB-826354-A (GB)
Title: Improvements in or relating to an implement convertible from a side delivery rake to a tedder
IPC: A01D78/00
Filed: 1955-11-25
Abstract: The subject-matter of this Specification is included in Specification 826,350 but the claims differ.  Specifications 826,353, 826,356, 826,357, 826,358 and 826,359 also are referred to.
Patent GB-886755-A (GB)
Title: Improvements in or relating to articles of footwear
IPC: A43B1/10
Filed: 1959-02-26
Abstract: Boots &c. are composed of at least two adherent layers of plastic or elastomeric material of which the outer layer is of transparent or translucent colourless composition and at least one inner layer is of coloured opaque, translucent, or transparent composition.  The inner layer which is of uniform thickness and which is thinner than the outer layer may be made of polyvinyl chloride, a silicone resin composition, or a mixture thereof.  The outer layer, which varies in thickness, or the inner layer may contain additions such as chopped tinsel, mother of pearl, or fish scales.  The polyvinyl chloride plasticol used for the inner layer may be less viscous than that used for the outer layer. Specification 726,784 is referred to.
Patent GB-127687-A (GB)
Title: Improvements in Heat Engines for the Production of Motive Power.
Inventor: LANCHESTER FREDERICK WILLIAM
IPC: F02G1/045
Filed: 1918-04-23
Abstract: 127,687. Lanchester, F. W. April 23, 1918. Hot-air engines.-In a two-stroke hotair or other engine in which the charge is transferred from a pump cylinder to a power cylinder during the period of maximum compression, the transfer of the charge is controlled by employing the cushioning in the power cylinder in conjunction with an abnormal timing of the inlet to the pump cylinder to prevent premature transfer. The outlet valves r from the pump cylinder a are ordinary self-act.- ing lift valves. The pump and motor cranks may be inclined at 60 degrees to each other, the power-cylinder exhaust valve closing about 70 degrees before the power piston reaches its in-centre, and the pump admission valves closing not later than 50 degrees before the pump piston reaches its out-centre. The pump inlet valves n<1>, which control a ring of air-admission ports in the cover k of the pump cylinder, are actuated by the difference of pressure acting on opposite sides of the valve heads. The air inlet to the valve ports is an annular recess k<2>, and the extent of opening of the valve is limited by a shoulder l<1> on the cylinder wall. The valves are normally closed by springs n<5> hooked over bars q placed over holes m in which the valves are placed. The valve stems carry balance pistons n<2>, the upper sides of which communicate with an annular recess o connected by a pipe s to a port in the wall of the cylinder. The valves n<1> are closed when this port is overrun, or when a governor-controlled valve in the pipe s is closed, the effect of the cushioning-compression produced in the power cylinder being increased when the valves n<1> close early. One of the Provisional Specifications states that the engine cycle may comprise working both by hot air and internal combustion, and that the pump piston may be actuated by a quick-return motion comprising a swing- ing arm connected to the piston and to the connecting-rod, the timing being so arranged that the whole of the pump volume may be employed. Specifications 127,686 and 128,686, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], are referred to.
Patent GB-537905-A (GB)
Title: Improvements in insulated electrical conductors
IPC: H01B3/08
Filed: 1940-04-16
Abstract: 537,905. Cables. ROCKBESTOS PRODUCTS CORPORATION. April 16, 1940, No. 6873. Convention date, May 3, 1939. [Class 36] A flexible electric conductor 1 has bound to it a layer of asbestos fibres by helical glass threads. A sliver 4 of asbestos may have a glass thread 3 centre and be wound directly on the conductor, the surface being afterwards flattened. As shown, the asbestos winding is superposed on a layer of other insulation 6 other than glass yarn, and may be covered by a layer 7 of impregnated asbestos, with or without a binding of another glass thread 8. Specification 529,380 is referred to.
Patent GB-926202-A (GB)
Title: Improvements relating to wheel brakes
Inventor: LOBELLE MARCEL JULES ODILON
IPC: B60B33/02
Filed: 1961-02-24
Abstract: 926,202. Drum brakes. M. L. AVIATION CO. Ltd. Jan. 11, 1962 [Feb. 24, 1961], No. 6883/61. Class 103 (1). In a wheel brake in which a number of shoes are forced into contact with the inner surface of a drum 4 against the action of brake springs by the action of cams moved by rotation of a cam-operating shaft 5, an arm 6 mounted on the shaft 5 and a connecting rod 8 pivoted at 7 to the arm 6 and at 9 to an operating lever 10 mounted on a pivot 11 on the axle support 2 are so arranged that as the lever 10 is moved to apply the brake the rod 8 moves from one side of the pivot 11 to the other so that the brake is locked on by the reaction of the brake springs. As-shown, a second operating lever 17 pivoted at 18 is connected via a pivoted link 14 to the lever 10 so that movement of either lever applies the brake. The levers 10, 17 are formed with flattened ends 13, 19. The length of the rod 8 is adjustable by rotation of a part 27 engageable by a spanner so that the ends 25, 26 of the rod which are threaded in opposite senses screw into or out of the oppositelythreaded parts 20, 21. Lock-nuts 23, 24 lock the rod 8 at any pre-adjusted length.
Patent GB-804912-A (GB)
Title: Improvements in or relating to electric circuit control devices for automatically reclosing circuit breakers
IPC: H02H3/07
Filed: 1954-03-09
Abstract: 804,912. Protective cut-out arrangements. SOUTH WESTERN ELECTRICITY BOARD and SNOW, L. T. March 9, 1955 [March 9, 1954), No. 6888/54. Class 38 (5). A control device for automatically reclosing a circuit-breaker comprises switches 1, 2, an armature 3 and solenoids 5, 7. When the contacts 6 of a fault responsive relay close, the opening coil 8 of the circuit-breaker (not shown) and the solenoid 5 are energized. The latter moves the armature 3 from the position X to the position Y to open the switch 1 without delay to de-energize the solenoid 5 and after a first time delay to close the switch 2. The closing of the switch 2 causes the energizing of a closing coil 9 to reclose the circuit-breaker and the energizing of the solenoid 7 to restore the armature 3 to its initial position X. The switch 2 opens without delay, but the switch 1 only recloses after a second time delay, so that if the relay contacts 6 are reclosed during the second time delay the circuit-breaker is again opened but not reclosed as the circuit for the solenoid 5 has not been completed by the switch 1. The switches 1, 2 may be mercury switches which when suitably tilted, open in 0.5 seconds and close in 30 seconds.
Patent GB-1493083-A (GB)
Title: Explosive-powered fastener-driving tool
IPC: B25C1/14
Filed: 1975-02-19
Abstract: 1493083 Cartridge powered fastener drivers HILTI AG 19 Feb 1975 [8 March 1974] 6956/75 Heading B4C A piston type cartridge powered fastener driving tool comprises an opening in the cylinder between the limits of travel of the piston for removing hot gases and causing the inflow of cooling air by creating an underpressure. In Fig. 1 an ejector 8 fed from an outlet 5 draw gases out through a pipe 9 and cooling air is drawn in through cartridge chamber 2 either because a caseless cartridge has burned away or because a cartridge case has been retained in a magazine leaving an opening in chamber 2. To be free from the necessity of drawing in cool air gases passing out of opening 5 may pass through a heat exchanger and bench to the cylinder before being ejected. In a further embodiment a single outlet having a conical end to the exhaust pipe is provided.
Patent GB-1144619-A (GB)
Title: Apparatus for continuously refining cocoa nibs and like material
IPC: A23G1/04
Filed: 1968-02-13
Abstract: 1,144,619. Apparatus for refining cocoa and the like. G. PILZ [trading as MASCHINENFABRIK J. S. PETZHOLDT]. 13 Feb., 1968 [15 Feb., 1967], No. 7095/68. Heading A2B. An apparatus for refining cocoa nibs and like materials comprising a plurality of containers in which the material is mixed, liquefied, and refined, said containers being provided with stirrers and being joined by conduits fitted with valves, is characterized in that there are at least two like containers adjacent to the feed to receive the material and liquefy it, the feed being preferably so arranged that first one and then the other of the two like containers is fed, and at least one additional container arranged immediately adjacent the two like containers, being connected thereto by conduits fitted with pumps, the above additional container being fitted with a spraying device, for example a standpipe connected to the conduit with a spray disc over the outlet, to spray the liquefied material into the additional container, and thereby aerate the contents. Fig. 3 is a schematic diagram of such an apparatus, the cocoa nibs entering the liquefying containers 2, 2<SP>1</SP> via line 3, and the liquefied material being pumped by pump 16 via line 20, valves 17 and 18, line 22 and standpipe 9 into refining containers 8, 8<SP>1</SP>. By operation of valve 17 the material may be recirculated through the refining containers via lines 21 and 22 by pump. Finally, the refined material may be withdrawn via valve 18 and line 23 into collecting container 13. The containers may be provided with jacketed walls through which heating water or other fluid may be circulated.