baber/WOPTO huggingface dataset:
Patent GB-516519-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M9/00
Filed: 1938-04-13
Abstract: 516,519. Intercommunication systems. TELEPHONE MANUFACTURING CO., Ltd., FLINT, J. G., and ELLIS, C. F. April 13, 1938, No. 11368. [Class 40 (iv)] In a system including both master stations and substations, a call between a master station and a substation is completed over a four-wire circuit individual to the master station to which the substation instruments are connected by differential relay R operated, under the control of the master station. A call between substations is completed over the home wire H of the called substation, to which the local circuit of the transmitter TR and receiver RC at the calling substation is connected through a condenser Q by the operation of a push button A which serves when fully depressed to send calling current. On a call between a master station and a substation, the transmitter TR and receiver RC are connected over separate circuits to the loudspeaker LS and microphone MIC at the master station over a key KMA or KMB corresponding to the master station by the operation of differential relay R under the control of a corresponding key KSA or KSB at the master station. When the call is initiated at the master station, calling current energizes a relay IA or IB, which connects up the buzzer B. When the call is initiated at the substation by means of key KMA or KMB, calling current operates an indicator IAM or IBM at the master station, but this current - does not energize relay R since its windings are in opposition. Thus the substation instruments cannot be connected up until the master station accepts the call by operation of the corresponding key KSA or KSB. A call between master stations is made over keys KM.
Patent GB-687112-A (GB)
Title: Improvements relating to mechanisms for playing gramophone records
Inventor: METCALFE CLIFFORD
IPC: G03B31/00
Filed: 1950-05-10
Abstract: 687,112. Automatic gramophones. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 10, 1951 [May 10. 1950], No. 11589/50. Class 40 (ii). A mechanism for playing gramophone records comprises a record post 70 spaced from the turntable 29 and supporting a pile of records which are released one by one on to the locating spindle 34 of the turntable 29, and means for removing a record from the turntable comprising a frame 64. which is pivoted about an axis 66 so that when moved through an angle of about 30 degrees the record is lifted and slides into a receptacle 69. Means are provided for lifting the turntable from the position 29', in which the upper face of the record may be played by a stylus 62 of a transducer 60. to the position 29, in which the lower face of the record is played by a stylus 61 of the transducer 60. In the lower position 29<SP>1</SP> the turntable engages a rotary element 23. through the medium of serrations 28, and is driven clockwise, as viewed from above, by means of a disc 14 driven by a motor shaft 11 and jockey pulley 12. The turntable is raised to the upper position by a member 33 so that a pinion 38 engages another pinion 42 whereby the turntable is rotated in an opposite direction by means of pinion 41, shaft 46, pinions 40 and 35, and pins 36. Specification 688,134 is referred to.
Patent GB-105017-A (GB)
Title: Improvements in Pistons for Engines and like Cylinders.
Inventor: MORT GEORGE FREDERICK
IPC: F02F3/00
Filed: 1916-08-17
Abstract: 105.017. Mort, G. F. Aug. 17, 1916. Pistons, particularly those for explosion engines, have the gudgeon-pin bosses stiffened and supported by upper and lower walls 4, 5 parallel to the axis of the bosses, and by walls 6, 6 at right. angles to this axis. The pockets 7 thereby formed are open in front and allow of the insertion of transverse bolts, pins, &c. to secure the gudgeon-pin.
Patent GB-502061-A (GB)
Title: Process for the manufacture of a chloride of carbon
IPC: C07C21/20
Filed: 1938-04-19
Abstract: 502,061. Chlorinated hydrocarbons. CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE CES. April 19, 1038, No. 11668. Convention date, April 17, 1937. [Class 2 (iii)] A carbon chloride, C4Cl6, is prepared by treating hexachlorbutene simultaneously or successively with catalysts which split off hydrogen chloride, i.e. chlorides of iron, aluminium, manganese or cobalt, and with chlorine, preferably in the presence of chlorine carriers. In examples: (1) hexachlorbutene is heated with ferric chloride to give C4HCl5, presumably pentachlorbutadiene, antimony trichloride is added and chlorine passed in giving heptachlorbutene, C4HCl7 ; the temperature is finally raised to split off hydrogen chloride giving C4Cl6; (2) hexachlorbutene is treated with antimony trichloride and chlorine to form octachlorbutane which is heated with ferric chloride to give C4Cl6; (3) hexachlorbutene is heated with ferric chloride and antimony trichloride and chlorine to yield C4Cl6. Specification 473,644 is referred to.
Patent GB-1081646-A (GB)
Title: Improvements in or relating to resistors
IPC: H01L29/8605
Filed: 1966-03-17
Abstract: 1,081,646. Semi-conductor devices. TELEDYNE Inc. March 17, 1966 [March 22, 1965] No. 11724/66. Heading H1K. A buried channel 11 produced by a planartype double diffusion process has a sheet resistance in the range from 1000 to 15,000 ohms per square.
Patent GB-1487139-A (GB)
Title: Dock bumper unit
IPC: E01D15/24
Filed: 1975-03-20
Abstract: 1487139 Fenders incorporating hydraulic shock absorbers OIL STATES RUBBER CO 20 March 1975 [22 March 1974] 11743/75 Heading F2S A docking fender, comprising a bumper plate 32 spaced from a base-plate 38 by at least one hydraulic shock absorber 36 pivotally secured to both plates and extending perpendicularly to them, is provided with means, e.g. chains 80, 82, 84, 86 connected between the bumper plate 32 and the base-plate 38 to limit relative lateral movement (horizontal or vertical) of the two plates. Each plate is rectangular, and has a stanchion at each corner, projecting towards the other plate, each plate having two long and two short stanchions. Each chain is connected between a long stanchion (e.g. 62) on one plate (32) to the diagonally opposite short stanchion (68) on the other plate (28). Pillars 46 carrying pads 52 of resilient material limit movement of the plates towards each other, and chains 72, 74, 76, 78 limit movement away. Each shock absorber (of which there are four) comprises an hydraulic damper housed within two telescoping cylinders interconnected by a frusto-conical elastomeric sleeve. Several fenders may be disposed side-by-side with their bumper plates hinged together.
Patent GB-1201255-A (GB)
Title: Improvements in and relating to devices for magnetic field measurements
IPC: G01R33/07
Filed: 1969-03-05
Abstract: 1,201,255. Measuring magnetic fields. VARIAN MAT G.m.b.H. March 5, 1969 [March 13, 1968], No.11791/69. Heading G1N. A Hall plate magnetometer for measuring magnetic field strengths in sectoral field mass spectrometers is provided with thermal stabilization and a device for controlling the control current (i H ) in dependence on the temperature (t H ) of the Hall plate 1 in such a manner that the output voltage (U H ) is independent of the Hall plate temperature. As shown, the thermal stabilization system 6 includes a cooling coil 4 and a temperature sensor 8. The same temperature sensor, or, as shown, a different one 10, supplies a t H  signal to a control circuit 12 which also receives an i H  signal from across a resistance 13 in the control current circuit. Adjustable resistor 20 enables the proportionality factor to be adjusted.
Patent GB-860641-A (GB)
Title: Improvements in or relating to the polymerization of ethylenically unsaturated hydrocarbons and catalysts therefor
IPC: C08F10/00
Filed: 1957-04-10
Abstract: Olefines are polymerized using a catalyst composition (see Group III) formed by mixing, in the presence of a liquid diluent, a Group IVa metal halide with a combination of reducing agents comprising (1) a Group IIIb, IVb or Vb alkyl metal halide containing at least one alkyl and two halide groups and (2) a Group Ia, IIa or IIIb metal alkyl or aryl.  The term "halide" is defined as including oxychlorides.  Preferred liquid diluents are those which can serve as polymerization media and as solvents for the catalyst components, e.g. an inert hydrocarbon or liquid monomer.  Polymerization may be effected batchwise or continuously preferably in a diluent such as cyclohexane, decane, xylene or toluene at temperatures from below O DEG  to above 300 DEG  C. and 1 to 200 atmospheres using 0.001 to 10% of the catalyst based on the weight of the monomer.  In examples, ethylene or propylene is polymerized using catalyst compositions obtained by mixing the following ingredients in decahydronaphthalene: (a) TiCl4, C2H5AlB62, Mg(C5H5)2; (b) TiCl4, C2H5AlBr2, LiAl(C7H15)4; (c) TiCl4, (C4H9)2SnCl2, Mg(C6H5)2; and (d) TiCl4; (C4H9)2SbCl3, Mg(C6H5)2.ALSO:Catalyst compositions suitable for olefin polymerization reactions are formed by mixing the following three components in a liquid diluent: (i) a halide of titanium, zirconium or hafnium (including oxychlorides); (ii) a metal alkyl halide containing at least two halogen atoms and one alkyl group wherein the metal is aluminium, gallium, indium, thallium, germanium, tin, lead, antimony or bismuth; and (iii) a metal alkyl or aryl wherein the metal is one or more of the metals of Group Ia, IIa, and IIIb. The diluent may be an inert hydrocarbon or a liquid monomer. Components (ii) and (iii) are reducing agents for component (i) and should be added in sufficient amount to reduce the metal thereof to a valency state below three.  The molar ratio of components (ii) plus (iii): (i) is preferably between 0.3 and 10 : 1 and the molar ratio of component (iii) : (ii) preferably exceeds 1.  In examples the following catalyst compositions are used: (a) TiCl4, C2H5AlBr2, Mg(C6H5)2; (b) TiCl4, C2H5AlBr2, LiAl(C7H15)4; (c) TiCl4, (C4H9)2SnCl2, Mg(C6H5)2; and (d) TiCl4, (C4H9)2SbCl3, Mg(C6H5)2.
Patent GB-551705-A (GB)
Title: Improved carroting solution and process for treating fur and the like
IPC: D04H1/08
Filed: 1941-09-16
Abstract: 551,705. Furs. AMERICAN HATTERS & FURRIERS CO., Inc. Sept 16, 1941, No. 11855. Convention date, May 6. [Class 76] A carroting solution for treating furs consists of an aqueous solution of sulphuric acid, chloric acid, nitric acid and hydrogen peroxide, containing 70 per cent. by weight as much nitric acid as hydrogen peroxide, an amount of sulphuric acid equal to the chloric acid and between 136 per cent and 229 per cent. as much chloric acid as hydrogen peroxide. A relatively strong solution having the above proportions may be prepared so that the quantities of ingredients are within the following ranges, sulphuric acid 1.3 to 5.4 per cent. chloric acid 1.3 to 5.4 per cent. nitric acid 0.7 to 1.7 per cent. hydrogen peroxide 1.0 to 2.4 per cent., and this may be diluted with water to give various strengths for treating different furs. Specification 477,796 is referred to.
Patent GB-109797-A (GB)
Title: Improvements in or relating to the Heating Conductors of Thermic Telephones.
IPC: H04R23/00
Filed: 1917-08-18
Abstract: 109,797. Naamlooze Vennootschap de Nederlandsche Thermo Telephoon Maatschappij. Sept. 15, 1916, [Convention date]. Hot-wire receivers.-The heating-conductor of a thermic telephone comprises a coil or spiral of Wollaston or like wire flattened to an oval shape and connected along its flattened sides to two parallel rcds, the wire thus forming a set of arch-shaped conductors connected in parallel. As shown in Fig. 4, the rods 1 are carried by an insulating bar 2 and are soldered to the flattened sides of a spiral coil 4. The outer ends of the rods are inserted in holes in the insulating base 7 of a tube 6 which is closed by a perforated cover 10. The base 7 is socketed to receive conducting tubes 8 into which the leadiu plugs 9, Fig. 5, are inserted when the instrument is assembled. The plugs 9 are carried by a cap 11 which is screwed into an outer casing or earpiece 12. The arch-shaped conductors may be etched by dipping them in an acid bath after attachment to the rods 1.
Patent GB-934025-A (GB)
Title: Separation of uranium metal from oxides and slag in the reduction of uranium tetrafluoride
IPC: C22B60/02
Filed: 1962-03-28
Abstract: Uranium, for fabrication into nuclear reactor fuel cores, is prepared from UF4 containing 3 to 10% uranium oxides by mixing the oxide-containing UF4 with magnesium, preferably 4% in excess of the amount required to reduce the UF4, providing lead in the mixture in a proportion of at least 0.2% of the uranium in the mixture, and heating the lead-containing mixture, e.g. in a MgF2 or graphite lined reactor enclosed in a resistance or an inductance furnace heated at 1250 DEG F., until the mixture reacts to form uranium metal and magnesium fluoride slag containing uranium oxides.  Lead, magnesium and other impurities in the resulting uranium may be removed in a subsequent vacuum melting step, e.g. by heating a uranium derby as produced in a reactor by the above process, to 2550 DEG F. in a MgZrO3 crucible under a vacuum, prior to casting.  The lead is preferably in shot form and blended throughout the mixture, the magnesium being in the form of granules or chips.
Patent GB-370202-A (GB)
Title: Improvements in or relating to manifolding books
IPC: B41L1/24
Filed: 1931-04-22
Abstract: 370,202. Manifolding books. BALLANTYNE, W. H., 111, Hatton Garden, London.-(Appleford Paper Products, Ltd.; 78, Stirton Street, Hamilton, Ontario, Canada.) April 22, 1931, No. 11948. [Class 16.] A manifolding book comprises a series of bound units each consisting of a duplicate sheet 1 integral with but separable from a stub portion 2, an original sheet 4 integral with the duplicate and normally folded in parallel relation thereto, and a carbon sheet 3 disposed between the original and duplicate and united at one margin thereof to one of the sheets 1 or 4, so that it normally remains in connection with that sheet when the latter is detached from the part with which it is connected. A "stop" sheet or record sheet 10 secured to or integral with the back cover 7 is arranged to be swung beneath a manifolding unit while entries are being made upon it, and to cover parts of used units remaining in the book. The carbon sheet 3 may be gummed along one edge to the back of the original sheet 4 adjacent its line of juncture with the duplicate sheet 1. The carbon sheet, which is carbonized only on the face which normally contacts with the duplicate, has its free edge 5 uncarbonized for convenience in handling, and the edge to be united to the original sheet may also be uncarbonized to facilitate gumming. The carbon sheets are preferably of thin cheap paper with a light coating of carbon, and these may be used as a permanent record of all entries. Perforations or other weakening lines facilitate the separation of the originals from the duplicates and of the duplicates from their stubs. Each unit separated from the book may be used for further entries at a later stage.
Patent GB-1039358-A (GB)
Title: Superheaters for steam boilers
IPC: F22B37/14
Filed: 1963-03-26
Abstract: 1,039,358. Steam superheaters. SIEMENSSCHUCKERTWERKE A.G. March 26, 1963 [April 7, 1962], No. 12014/63. Heading F4A. In a steam boiler having a radiant superheater located in the upper portion of the combustion chamber, the superheater consists of a plurality of U-shaped tubes with vertical arms connected in parallel and grouped to form a series of U-shaped bands of tubes 4 which are suspended side-by-side. Each band of tubes has its own inlet and outlet header 5, 6 which are respectively connected by pipes 3, 7 to main inlet and outlet headers 2, 3 so that the bands and individual headers can expand and contract independently. The tube bands with interposed evaporator tubes, not shown, may constitute the wall lining in the upper part of the combustion chamber. Steam flow to the bands located in less intensely heated regions of the chamber, e.g. the corners, may be restricted by forming these bands of tubes of reduced crosssection. In addition steam flow control valves 10 may be located in the inlet pipes 3 or in the outlet pipes 7.
Patent GB-151048-A (GB)
Title: Improvements in petrol tanks
IPC: B64D37/32
Filed: 1919-05-14
Abstract: 151,048. Hobbs, H. T., and Parry, H. M. May 14, 1919. Tanks.-Petrol and other tanks comprise a number of spaced casings a, b, c, fittings m, n being provided to allow the intervening spaces which are filled with suitable absorbent material to be exhausted of air. A baffle o may be provided, a rubber covering may be provided for one of the casings, and the inner casing may be strengthened by metallic fabric l.
Patent GB-600940-A (GB)
Title: Improvements in and relating to impedance matching of aerial arrays
IPC: H03H7/38
Filed: 1945-05-14
Abstract: 600,940. Impedance-matching. BRITISH. BROADCASTING CORPORATION, BLISS, J. L., and PAGE, H. May 14,1945, No. 12113. [Class 40 (viii)] A circuit for matching a transmission line to a load, such as a short-wave aerial array, provides an exact match at one frequency and an approximate match at a second frequency, or over a narrow band of frequencies. The circuit is defined by at least two parameters L1, L2, such as the length L1 of a stub B, Fig. 1, and the distance L2 between the stub and the terminals A of the load. Values a, b are first found for the parameters L1, L2, such that impedances are exactly matched for a wavelength 0,. They will then be matched for that wavelength if L1 has a value (a+n1#1/2) and L2 has a value (b +n2#2/2). The invention consists in choosing n1, n2, so as to secure an approximate match for a second wavelength #2, or throughout a narrow band between #1 and #2 Either n, or n2 may be zero. The shortcircuited stub B, Fig. 1, may be replaced by a pair of much shorter stubs in parallel, one short-circuited and the other open-circuited, their relative lengths being so chosen, in relation to the impedance characteristic of the load, as to give an approximate impedance match throughout the band between #1 and #2. If, however, the impedance characteristic of the load is such as to give an irreducible mismatch within the band, an impedance-transforming section with appropriate characteristic impedance may be inserted between the circuit and the load. The length L2, instead of being that of a stub B, Fig. 1, may be that of a section of the line T in which each leg is shunted by a sagging loop of conductor, Fig. 2 (not shown) ; or each leg of the line may comprise a pair of parallel conductors, Fig. 3 (not shown), and the length L1 may be that of a section in which the spacing between each. pair is re. duced, so as to change the characteristic impedance, Fig. 3 (not shown) ; or there may, Fig. 5, be two sections of equal length, or equivalent quadripoles, Fig. 4 (not shown), connected in shunt.
Patent GB-1379369-A (GB)
Title: Thermal compensation in data storage apparatus
IPC: G11B21/08
Filed: 1973-03-13
Abstract: 1379369 Automatic control of position CONTROL DATA CORP 13 March 1973 [5 June 1972] 12113/73 Headings G3N and G3R A device for providing temperature compensation in the positioning of a magnetic transducer head 14 on a selected track on a data storage disc 11 comprises a strip element 22 having a scale portion 18 with "markings" corresponding to the tracks on the disc and another portion 17, the coefficient of linear expansion of the respective portions being such that they simulate thermal movements of the disc and transducer supporting arm 13 respectively, and a sensor 19 for the markings to supply a signal indicative of the, position of the transducer relative to the disc. As shown, the element 22 is secured at one end 16 to the machine deck and the sensor 19 is attached to a carriage 15 for the transducer arm 13. A desired track address signal 26 is entered into an unspecified control unit 28, causing a coil 20 to move an armature 21 attached to the carriage 15. Pulses from sensor 19 are counted in 28 until agreement with the signal 26 is reached, stopping the motion. The scale "markings"  comprise turns of a winding and sensor 19 detects null points in the resulting magnetic field. In use the carriage is caused to "dither" about the desired position and any thermal movement of the scale is followed by the carriage. The respective portions of element 22 may be of the same dimensions and materials as the disc and arm (aluminium and stainless steel) or the portion 17 may be extended to include that part 18a of 18 which corresponds to the portion of the disc within its innermost track, in which case 17 is of brass of the appropriate temperature coeffecient. The element 22 may alternatively be secured to the carriage and the sensor to the deck, the disc 11 may in fact be a stack of discs and enclosed in a cover into which air is blown Fig. 4 (not shown) and the portion 17 may be in the form of a hollow tube with an opening near the periphery of the discs, or with the flexible tube so placed, all of which arrangements are designed to ensure equality of temperature of disc and 17.
Patent GB-156039-A (GB)
Title: Oil can holder
IPC: F16N3/04
Filed: 1920-05-03
Abstract: 156,039. Marks, E. C. R., (Nagel Electric Co., W. G.). May 3, 1920. Clip brackets.-A device for holding a lubricating- can in a motor vehicle &c. comprises an L- shaped bracket, formed at its outer edge with ears 6 to engage the can, and provided with an integral spring tongue 8, 10 of L-shape, bent so as to press against the bottom and one side of the can.