baber/WOPTO huggingface dataset:
Patent GB-362506-A (GB)
Title: A device for sharpening gramophone needles other than steel
IPC: B24B19/16
Filed: 1930-09-06
Abstract: 362,506. Gramophone needle sharpening-appliances. SCOTT, D. S., 154, City Road, Edgbaston, Birmingham. Sept. 6, 1930, Nos. 26628 and 28400. [Class 40 (ii).] For sharpening gramophone needles other than those made of steel, such as needles made from thorns, a device is used consisting of a tubular attachment to a gramophone turntable, the tube having an abrasive material such as a strip of carborundum cloth attached to its outer side. The needle is held against the abrasive as the tube is rotated by the motor. According to the first Provisional Specification, an abrasive material is fixed around the inside of a conical depression at the top of a tube which fits on the turntable spindle.
Patent GB-209162-A (GB)
Title: Improvements in silencers or mufflers for use in connection with internal-combustionengines
IPC: F01N1/08
Filed: 1922-10-03
Abstract: 209,162. Cox, A. Oct. 3, 1922. Exhaust-silencers and the like.-In a silencer for the air inlet of a carburettor, comprising thin rings c with narrow spaces between them, the ring c<1> nearest the union a for attachment to the carburettor has a central opening considerably smaller than those of the remaining rings. The rings are spaced apart by distance washers and secured between a closed end plate b and the union a. The rings may be flat, coned, or domed, and the plate b may be coned as shown.
Patent GB-440875-A (GB)
Title: Improvements in apparatus for playing a game, or for educational purposes
IPC: A63F9/18
Filed: 1935-09-27
Abstract: 440,875. Games and educational apparatus. HARDING, C. H. J., Rustic View, Boxhall Lane, Hollesley, Woodbridge, Suffolk. Sept. 27, 1935, No. 26814. [Class 132 (ii)] Apparatus for playing a game or for educational purposes comprises a series of small blocks representing different commodities adapted to be bought and sold for counters at prices determined by the spinning or setting of an indicator disc 6, the blocks bought being transferred from spaces 16 on a large chart 3 to other spaces on supplementary eharts allotted to each player. The counters may be stored on the corner squares 17, and the price indicator disc 6 and surrounding segmental spaces 20 marked with different commodities are placed on the central square 15. The charts, the disc 6, and a tray 9 for storing the blocks 7 and counters 8, are compactly housed in a box 1.
Patent GB-498190-A (GB)
Title: Improvements in traps for animals
IPC: A01M23/30
Filed: 1937-10-05
Abstract: 498,190. Animal traps. MILLER, A. G. Oct. 5, 1937, No. 26898. [Class 5 (i)] A throw-over trap is provided with a safety catch device to prevent the trap from being sprung accidentally, the device being rendered automatically inoperative when the trap is placed on the ground. In the form shown, the setting member 16 is in position to be engaged by a hook 25 on a pivoted wire having a part 28 extending below the base of the trap. The safety device may be pivoted on the underside of the base, and, in a modification, is adapted to be engaged by the striking member 6 instead of by the setting member 16.
Patent GB-869121-A (GB)
Title: A process for the preparation of 1:4-dibromobutene and 1:4-dibromobutane
Inventor: ELIAN JOHN
IPC: C07C17/354
Filed: 1957-08-26
Abstract: 1:4-dibromobutene is obtained by reacting butadiene with bromine at low temperature and in the presence of a solvent for both reactants to form a mixture of 1:2- and 1:4-dibromobutenes, heating the mixture to about 90 DEG C. to increase the proportion of 1:4-isomer and cooling the mixture to enable the solid 1:4-dibromobutene to be separated, the 1:2-isomer being reintroduced into the mixture for conversion to the 1:4-isomer at a point in the reaction cycle where the mixture has not been raised to a temperature high enough for any appreciable isomerisation to take place.  The bromine and butadiene are preferably reacted in equimolar proportions or advantageously with a slight excess of butadiene.  Specified solvents are chloroform, acetic acid, carbon disulphide and hexane.  An apparatus for the continuous operation of the process is described wherein bromine, butadiene and a solvent are cooled and the mixture passed through a series of interconnected compartments in a vertical column. The product is drawn from the bottom of the column, heated to remove butadiene which is recycled, heated to 95 DEG C. to effect isomerisation, the solvent distilled off, the mixture cooled and the solid 1:4-isomer separated by a centrifuge.  The liquid 1:2-isomer is recycled.  The 1:4-isomer may be hydrogenated in known manner to 1:4-dibromobutane.
Patent GB-354091-A (GB)
Title: Improvements in and relating to washing and sterilising apparatus for surgical and other appliances
IPC: A61G9/02
Filed: 1930-09-09
Abstract: 354,091. Washing bottles &c. PYLE, C. R., St. Bartholomew's Hospital, London. Sept. 9, 1930, No. 26956. [Class 138 (i).] An apparatus for washing and sterilizing bed-pans, surgical bowls, milk bottles, (Provisional Specification), and other appliances comprises a cabinet, preferably of non-corrodible metal, having a door 1 hinged at 2 about a horizontal Axis and having clips 10 to support the appliance P to be washed. The door 2 is provided with peripheral rubber packing 9 and is opened to insert the appliance P by a pedal 4 through linkwork 3. Cold water is projected against the appliance from a nozzle 12 connected to a flushing cistern by a pipe 15 into which disinfectant may be introduced. Steam is subsequently supplied through a nozzle 11, the connecting pipe 14 of which contains a valve opened by a cranked spindle, the cranked portion being arranged to lie in front of and prevent opening of the door 1 when the valve is open and being turned by hand or by a pedal. The door 1 is held normally closed by a weight 8 on the door 1. The cabinet is provided with a funnel-shaped discharge pipe 16 connected to the drainage system and with a vent pipe 26. The Provisional Specification states that a spring may be employed as an alternative to the weight 8 and that hot water may be used instead of steam.
Patent GB-688723-A (GB)
Title: Improvements in or relating to electronic storage arrangements
Inventor: BAKER GEORGE THOMAS
IPC: H04Q11/04
Filed: 1950-11-04
Abstract: 688,723. Automatic exchange equipment. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Nov. 2, 1951 [Nov. 4, 1950], No. 26972/50. Class 40 (iv). In an arrangement for associating a plurality of storage devices with a plurality of sending and receiving equipments in which each equipment is apportioned a definite part of the storage capacity of its associated device, appropriate equipments are associated simultaneously with their associated devices under the control of equipment common to the plurality of storage devices. The arrangement is described for use in a system similar to that described in Specification 681,360, in which different areas of a target of a cathode-ray tube are associated with different sending and receiving equipment. As shown in Fig. 1, the signal inputs or outputs to the tubes T1, T2 and T3 are connected in turn to their associated sending or receiving equipments A1 ... D1, A2 ... D2, A3 ... D3 by gating circuits X opened in turn by voltages applied to common leads. The leads A ... D are energized by a ring counter which is stepped by the sweep circuits each time a complete individual area of the storage target has been swept. Separate sets of gating circuits may be used for writing and reading or switching arrangements may be provided to interchange the input and output connections of the gates. If magnetic storage means are used instead a single track may represent a storage device for several equipments, but all the tracks may be arranged on the same drum and associated with a corresponding number of pick-ups.
Patent GB-503340-A (GB)
Title: Improvements in planks for covering hatches and other openings
IPC: B63B19/16
Filed: 1937-10-05
Abstract: 503,340. Hatch covers. FRICK, H. E. Oct. 5, 1937. No. 26997. [Class 113 (i)] A plank for covering a hatchway is formed of a closed casing of sheet metal, the interior of which is filled with fire resistant material. The casing is formed of two sheets 36, 38 joined at the edges by,welds 40, 41. The lower sheet is stiffened by folded ribs 39, and projections 37 and recesses 36 engage corresponding portions on adjacent planks. In a modification these projections are absent ; whilst in further modifications the ribs 39 are omitted.
Patent GB-172447-A (GB)
Title: Improvements in electrical speed regulator systems
IPC: H02P7/34
Filed: 1920-09-22
Abstract: 172,447. Miller, L., and Metropolitan- Vickers Electrical Co., Ltd. Sept. 22, 1920. Systems for continuous current motors only.- In motor-control systems of the Ward Leonard type for controlling a plurality of motors, the speed of a working motor is automatically regulated by causing it to drive a rotary device which changes the motor field excitation in a compensating direction. In one arrangement, shown in Fig. 1, a working motor 3 is fed from mains 4 supplied by a motor-generator 1. The arrangements for excitation and control of the motorgenerator set are similar to known Ward Leonard systems. The motor 3 drives a rotary make-andbreak switch 26 which together with a condenser 25 is connected in one arm of a Wheatstone bridge having three other arms 22, 23, 24 constituted by adjustable resistances, the values of which are chosen so as to balance with the effective resistance of the condenser arm for a given speed of rotation. If the speed changes, current flows in the neutral arm 21 and starts a small motor 20 which acts upon a rheostat 19 connected to the field winding 14 of the motor 3, the direction of the change being such as to compensate for the initial variation of speed. As a modification, the neutral arm of the bridge, instead of being directly connected to the motor 20, is connected to a relay controlling a small reversible motor in an independent branch of the circuit. In other modifications, the condenser and rotary make and break are replaced by a magneto machine, and the rheostat device in connection with the motor 3 is replaced by a booster arrangement.
Patent GB-1543296-A (GB)
Title: Body-mounted support device for motion picture camera
IPC: F16M13/04
Filed: 1977-06-28
Abstract: The camera carrying device for a cinematic or television camera which is to be carried on the body of the operator contains a supporting tube (12) which is to be held essentially vertically and on the upper end of which there are present holding and adjustment means (22, 23) for the camera (10). The supporting tube (12) is rotatably mounted at the top in a ring (34) which surrounds it and which is in its turn connected to a cardanic device (14) which is resiliently supported by means of a body harness (17) on the body of the operator. A battery support (13) for the camera power supply is mounted at the lower end of the supporting tube. The holding and adjustment means (22, 23) permit forward, backward and lateral adjustment of the camera in a horizontal direction. A camera carrying device of this type permits the operator to point the camera without agitation, without special skill and without exerting a large amount of energy. <IMAGE>
Patent GB-1345315-A (GB)
Title: Velocity flowmeter
IPC: G01F1/12
Filed: 1972-06-09
Abstract: 1345315 Rotary fluid-flow meters SAABSCANIA A B 9 June 1972 [11 June 1971] 27064/72 Heading F1F A velocity flow-meter comprises a rotor in the form of a propeller 2 mounted in a tubular body 1 on bearings 5, 6 for both rotary and axial movement, clutch elements 10, 13 on the rotor 2 being adapted to engage clutch elements 12, 14 mounted on bearings 6, 5, so as to compensate for rotor speeds which are higher or lower than the correct speed for the fluid-flow. Clutch element 12 is rotated by a motor 11 at a speed higher than that of the rotor 2, and clutch element 14 is stationary. If the rotor 2 is rotating at a speed higher than the correct one due, say, to a sudden drop in fluid velocity which results in the rotor inertia maintaining a higher speed, then the rotor 2 will be moved upstream and clutch elements 13, 14 will be engaged thus slowing down the rotor 2. When such slowing down occurs the rotor 2 will be returned to its neutral position. Similarly, if rotor speed is too low, for instance because of friction losses, then the rotor will move down stream, elements 10, 12 will be engaged and the rotor speed increased. Provision is also made for efficient operation when the flow-meter is inclined, a construction for preventing unwanted axial rotor movement due to gravity forces in such circumstances being described Fig. 2, (not shown). Also descirbed is a flow-meter in which a single clutch element on the rotor 2 can engage both the motor and stationary clutch elements Fig.3, (not shown).
Patent GB-186935-A (GB)
Title: Improvements in and relating to the utilisation of broken twist drills and like machine tools
IPC: B23B51/14
Filed: 1922-10-06
Abstract: 186,935. Peters, W. W. Oct. 6, 1921, [Convention date]. Drills; chucks; sockets.-Broken ends of twistdrills, milling..cutters, reamers, wood-bits, &c. are utilized by grinding square the end of the broken piece and securing it in a chuck by means of a collet. Various forms of collet are described. The brass &c. collet 11, Fig. 2, is cast in the end of the drill 10, and is subsequently turned to fit the socket. In some cases the cast socket may be removed from the shank for general use. In the case of drills &c. with plain shanks, grooves or flats may be ground in or on the shanks to provide additional grip for the cast metal. The collet may also be formed in halves, 21, Fig. 5, or in quarters, 23, Fig. 7, the terminal portions being shaped so as to engage the flutes of the drill &c. A split ring 26, Fig. 8, may be used to retain the various sections of the collet in their assembled positions. In each form the collet is provided with a groove 16 for driving engagement with a feather 19, Fig. 2, on the chuck, the collet being secured in the latter by means of a screw cap 17.
Patent GB-1169836-A (GB)
Title: Injection-Electroluminescent Device with Graded Hetero-Junctions, and Method of Manufacturing such Devices
IPC: H01L21/00
Filed: 1968-06-07
Abstract: 1,169,836. Electroluminescence. WESTING- HOUSE ELECTRIC CORP. 7 June, 1968 [24 Aug., 1967], No. 27159/68. Heading C4S. [Also in Division H1] An injection-electroluminescent device for generating infra-red or visible radiation by charge carrier recombination comprises p-type layer 18 of ZnTe (with acceptor impurities such as P (e.g. in amount 0À1% by wt.), Li, Na, K, e.g. 0À01 to 1% by wt., preferably 0À1%, Rb and Cs for example, layer 14 of CdS, e.g. insulating or n-type with donor impurities such as In (e.g. 0À01 to 1%, preferably 0À1%, by wt.), Al, Ga, Cl, Br, I, Sc or any rare earths, for example, and luminescent insulating layer 16, of ZnSe (e.g. a 1 micron thick single crystal) or a ZnSe-ZnS combination coupled to layers 14 and 18 by graded hetero-junctions. A further luminescent insulating layer of i-type ZnS may be included between the i-type ZnSe layer and n- or i-type CdS layers (Figs. 4 and 5 respectively not shown). Also a layer of admixed ZnS and ZnSe in combination with a separate ZnS layer may be used wherein at least 90% by wt. of ZnSe is present in the junction region between the admixed ZnS-ZnSe and ZnTe layers. Layer 12 may be indium, titanium or tin oxide and layer 20 of aluminium, nickel or gold. The thickness of the graded junctions (S 1 and S 2 , Fig. 2, not shown) should preferably be equal at 0À1 to 1 micron and preferably at least 10% of the thickness of the unadulterated portion (S 3 ) (the latter of 1 micron thickness for example). The ZnTe and CdS layers may be 2 microns thick. Preparations described include standard vacuum vaporization techniques with substrate temperatures of 300 to 500 C., the different charges being each in a separate or the same crucible, selective evaporation in the latter instance being attained by controlled temperature variation. The film thicknesses may be determined by the quantity of charge and the graded hetero-junction thicknesses by variation of the substrate temperature during or after the film depositions, or by controlling the evaporation rates. For example, the CdS charge may be heated to 800 to 1000 C. for 1 to 5 mins. and then reduced to below 700 C. while the ZnSe charge is heated to 1000 C. and then 1300 C. to promote ZnSe vaporization.
Patent GB-260984-A (GB)
IPC: F04B39/08
Filed: 1926-10-29
Abstract: 260,984. Soc. Technique d'Etudes et d'Entreprises pour l'Industrie, and Huguenin, A. Nov. 6, 1925, [Convention date]. Heat of compression, absorbing; valve gear.- Gas is compressed in one or more stages, and cooled after each stage and a part of the cooled gas from any cylinder is injected into the same cylinder at the end of the dischage stroke to cool the cylinder which is lagged. Fig. 8 shows gear controlling the inlet valve for the cooled gas, the stem of which is actuated by levers 3, 10. Lever 10 embraces an eccentric 6 threaded on a driven shaft 5; axial motion of the eccentric varying its radial position on the shaft is effected by levers bearing on collars attached to the eccentric and engaging grooves in a support 14 moved up and down by a hand-wheel 16. The Specification as open to inspection under Sect. 91 (3) (a) states that further injections of cooled gas may take place during the compression stroke. This subject-matter does nob appear in the Specification as accepted.
Patent GB-1260729-A (GB)
Title: Removing water from calcium sulphate
IPC: C04B11/036
Filed: 1969-05-29
Abstract: 1,260,729. Removing water from calcium sulphate; continuous furnaces. KNAUF SAAR GIPSWERKE G.m.b.H. GEB. 29 May, 1969 [31 May, 1968; 3 Aug., 1968], No. 27199/69. Headings F4B and F4G. Water is removed from calcium sulphate by passing the material, e.g. gypsum, in the form of a body 2 of superposed horizontal layers of different particle size, on a moving air permeable grate 1 through a heating zone 4 wherein combustion gases from burner 11 are drawn through the material by fans e.g. 14, and to prevent overheating of the sloping lateral sides which are less resistant to passage of combustion gases, the lowermost layer of finest particle size is arranged to having lateral portions deeper than a central portion. This may be achieved using a shaped vertically adjustable template 18 (Fig. 3, not shown) at the exit from supply hopper 3. Preferably at least one of the lateral portions is two to five times as deep as the central portion, and as shown, a higher bank 15 on one side is provided to compensate for uneven gas flow due to there being more fans on one side than the other. This may provide a fine adjustment of gas flow, a coarse adjustment being obtained by using a grate whose free cross-sectional area varies laterally. The grate may consist of an endless air-permeable belt cover with a perforated sheet of metal, wire fabric or like mesh.
Patent GB-283671-A (GB)
Title: Improvements in distribution boards for electrical installations
IPC: H02B1/00
Filed: 1926-10-30
Abstract: 283,671. Leach, S. G. Oct. 30, 1926. Fuse boards. - In a multiway double-pole fuse-board, instead of arranging the fuses on the positive side in a group separated from the group on the negative side, they are arranged in a single row, alternate fuses being connected to the positive and negative bus-bars respectively. In this way wiring is facilitated, each pair of circuit wires being connected to adjacent fuses. In the arrangement shown, one of the terminals of alternate, cut-outs (the cut-outs 2a) are connected to the strip bus-bar 5a by means of connectors. 4 sweated or rivetted to the terminal at one end and secured to the bus-bar by a nut 4a at the other. The remaining cut-outs (the cut-outs 2) are similarly connected to the other bus-bar 5 by connectors extending in the opposite direction. The bus-bars are provided with terminals on both ends to admit the supply leads at either end or at the sides, and the different pairs of circuit leads from adjacent cut-outs are taken out from adjoining terminals 11, 11<a>, all on the same side.
Patent GB-400406-A (GB)
Title: Improvements in and relating to electric valve circuits
IPC: H02M7/51
Filed: 1932-09-30
Abstract: 400,406. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Willis, C. H. ; 184, Prospect Avenue, Princeton, New Jersey, U.S.A.) Sept. 30, 1932, No. 27217. Convention date, Oct. 1, 1931. [Class 38 (ii).] In translating electric energy from one circuit to another through vapour discharge devices with control grids, the elements of the grid circuit of a discharge device are surrounded by a conductive shield connected to its cathode to prevent transients in the power circuit from inducing electrostatically in the grid circuit voltages sufficient to deprive the grid of control. In a parallel inverter system with valves 14, 15, the control transformer 17, the biasing battery 18 and the resistance 19 are enclosed in a shield 24 connected to the cathodes 25. Condensers 22, 23 connected between the grids 26 and cathodes 25 are also arranged in the shield. These condensers are sufficient to prevent power transients inducing voltages in the grids due to the electrostatic capacity inside each valve between the control grid and the anode 27. The addition of the shield 24 avoids the use of condensers 22, 23 so long that the grid circuit has a time-delay and requires considerable control energy. Specification 219,026, [Class 38 (ii), Electric currents, Converting &c.], also is referred to.
Patent GB-483045-A (GB)
Title: Manufacture of polymethine dyestuffs and of sensitised photographic emulsions
IPC: C09B23/01
Filed: 1936-10-07
Abstract: Polymethine dyes are made by condensing with an ortho-formic acid ester a compound of the general formula <FORM:0483045/IV/1> where X=O or S, Y=halogen or any acid residue, Z=1, 2 or 3, R1=alkyl (obtained by distilling an o-aminophenol or o-aminothiophenol and a dibasic saturated aliphatic acid).  They are ascribed the formula <FORM:0483045/IV/2> where R=H and are useful as sensitizers and filter dyestuffs for photography.  In examples: (1) 1 : 4-dioxazole butane made by distilling adipic acid with o-aminophenol is converted into the alkyl, e.g. ethyl iodide compound and the product condensed with ortho-formic acid ethyl ester in pyridine; (2) dioxazole pentane made from pimelic acid and o-aminophenol is converted into the alkyl iodide compound and condensed as in (1); (3) dibenzthiazole butane (from o-aminothiophenol and adipic acid) is converted into the alkyl iodide and condensed as in (1).  Sensitizing data for silver halide emulsions are given.  The Specification as open to inspection under Sect. 91 comprises condensations with orthoesters of organic acids and specifies orthoacetic acid ethyl ester whereby a dyestuff containing a CH3 group as the radical R in the second general formula above is obtained.  Reference is also made to the sensitizing of silver halide emulsions with dyes of the second general formula above when R=alkyl.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1066177-A (GB)
Title: Improvements in or relating to tyre girdles
IPC: B60C27/08
Filed: 1964-07-01
Abstract: 1,066,177. Wheel tyres. MITSUBISHI JUKOGYO KABUSHIKI KAISHA. July 1, 1964 [July 1, 1963; July 4, 1963], No. 27255/64. Heading B7C. A tyre girdle comprises shoes 1 each with a projection (1c) (Fig. 3, not shown) engaging between tyre tread ribs, the shoes being interconnected by a chain ring or linked slotted rods to permit the shoes to swing by their own weight and slide circumferentially of the tyre whereby shoes approaching or on the ground are closer together than the remaining shoes and their normally radial flanges 1a, 1a<SP>1</SP> extend downwardly (Fig. 4, not shown).