baber/WOPTO huggingface dataset:
Patent GB-1099630-A (GB)
Title: Gas cock
IPC: F16K5/02
Filed: 1966-10-18
Abstract: 1,099,630. Valves. METALLWERKE GEBR. SEPPELFRICKE G.m.b.H. Oct. 18, 1966 [Oct. 19, 1965], No. 46578/66. Heading F2V. A cock with a nozzle 9 which may be changed to suit the kind of gas being used has a by-pass 13 feeding an inlet 15 in the nozzle to determine the minimum flow rate when the main shut-off member 4 is closed, the maximum flow rate being determined by an outlet 11 in the nozzle when the member 4 is open. The nozzle has a threaded portion 17 screwed into the body of the cock and an extension 18 provided with a resilient annular seal 19. A spherical face on the head 16 of the nozzle abuts a plane surface on the body to form a further seal. A radial port in the member 4 which communicates with the by-pass through a part circumferential groove 12 may be turned into and out of register with a radial part in the body.
Patent GB-1458144-A (GB)
IPC: G03B19/12
Filed: 1974-10-29
Abstract: 1458144 Exposure control MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 29 Oct 1974 [31 Oct 1973] 46777/74 Heading G2A An exposure control circuit employing a fast response photo-sensitive element and having a memory circuit is arranged to store a signal representative of the average value of incident light even when an oscillating source is employed. As described a silicon cell P.D. is disposed to receive light from the view-finder of a single lens reflex camera, the output from the cell being amplified in a first high impedance differential amplifier A 1  and being passed via switch S 1  to a memory (comprising capacitor C 1  in series with a high resistance R 1 ). The memory element is connected across the inputs of a second high impedance differential amplifier whose output is applied to one side of a capacitor C 2 . The voltage across capacitor C 2  is compared with a standard voltage V 7  by differential amplifier A3, and when the two voltages are equal a signal causes electromagnet M to release the following blade of a shutter. It is stated that when the illumination comprises an A.C. component superimposed on the D.C. component that the D.C. component appears across the capacitor C 1  while the A.C. component appears across resistor R 1 . The stored value is thus the mean value corresponding to D.C.
Patent GB-959920-A (GB)
Title: A flotation device
IPC: B03D1/16
Filed: 1962-12-12
Abstract: 959,920. Flotation apparatus. KLOCKNERHUMBOLDT-DEUTZ A.G. Dec. 12, 1962 [April 27, 1962], No. 46909/62. Heading B2H. A flotation device for selective separation of a mineral mixture which is subjected to the action of air bubbles in a tank comprises an agitator in the lower part of the tank and means for supplying air towards a central portion of the agitator which is constructed so as to discharge the pulp from it in directions continually varying with the horizontal plane. Pulp is supplied to the tank through channels 11 and 8. The agitator has an impeller disc 3 with ribs 5 which rotates on a shaft 2. The disc 3 is set at an angle and coacts with a guide plate 6 arranged annularly around the shaft 2. The ribs 5 are of different heights and the thickness of the disc is varied to keep it in balance. Between the ribs, the disc has circular perforations (not shown). Rotation of the wheel 3 withdraws pulp from the channel 8 and the resulting injector action draws air down a tube 9 which surrounds the shaft 2.
Patent GB-1206599-A (GB)
Title: Shrink-wrapped package
Inventor: GRANVILLE-DAVIS GEOFFREY NEVIL
IPC: B65D71/00
Filed: 1967-10-18
Abstract: 1,206,599. Packaging. H. P. SAUCE Ltd. 28 Oct., 1968 [18 Oct., 1967], No. 47412/67. Heading B8C. A cardboard top locating pad 3 for placing on top of articles in a box to fix them in position has downwardly projecting bifurcated lugs 4 for engaging the sides of the upper portions of the articles. As shown, bottles 1 are located in tray 2, Specification 1,206,600, and the whole assembly shrink-wrapped. The lugs 4 are U- shaped to engage the necks of the inner bottles. The outer bottles are held by the shrinkwrapping.
Patent GB-1122573-A (GB)
Title: Magnetic tapes
Inventor: HEISE ALFRED
IPC: C09D5/23
Filed: 1965-11-09
Abstract: 1122573 Magnetic structures ZONAL FILM (MAGNETIC COATINGS) Ltd 8 Nov 1966 [9 Nov 1965] 47478/65 Index C3R 32 C24 C33A C6X C5B2 C21 C11 L2A L6G C8T L2X L4H A magnetic recording element comprises a base having a coating of magnetic oxide particles in a binder and containing as lubricant particles of tungsten disulphide less than 10 microns in size. The WS 2  is preferably submicron and is present in amounts of 1-10 weight per cent of the solids in the coating. The magnetic particles may be Fe 2 O 3  and the binder a polyurethane.
Patent GB-1277954-A (GB)
Title: Method of highly-densifying powdered metal
Inventor: HALLER JOHN
IPC: B22F3/14
Filed: 1969-09-26
Abstract: 1277954 Compacting metal powders FEDER-  AL MOGUL CORP 26 Sept 1969 [26 Nov 1968] 47559/69 Heading B5A [Also in Division C7] A hot pressing process for metal and alloy powders e.g. Co and Ni super alloys in which the powder is packed in a metal container which is evacuated, sealed, heated e.g. to 2000-2200‹ F. and then pressed in a die so that the periphery of the container and the powder deforms axially into the space formed by the clearance between the die wall and the punch. A clearance space may also be formed between the bottom punch and the die wall and the core pin and the punches. As shown in Fig. 3 the metal powder is packed in a steel or stainless steel container 12, evacuated, heated and compacted in die 32 by axial movement of top punch 36. The less dense peripheral portion is extruded into clearance space 50 to form an annular lip which, with the container, is removed by pickling or machining. Top and bottom punches may be used (Fig. 4, not shown) and annular components using a core pin may be formed (Figs. 5-8, not shown).
Patent GB-1400336-A (GB)
Title: Apparatus for measuring the redox potentioal of a fluid medium
IPC: G01N27/416
Filed: 1973-10-11
Abstract: 1400336 Redox potential measurement JOH A BENCKISER WASSERTECHNIK GmbH 11 Oct 1973 [12 Oct 1972] 47598/73 Heading G1N Apparatus for measuring the redox potential of a fluid comprises a flow control valve 3, flowmeter 4 and flow vessel 5 in series, the flow vessel 5 having a fluid outlet which does not constrict flow and containing an electrode assembly 6 comprising a reference electrode and a sensor electrode connected to a measuring circuit 13, 14. As shown the apparatus comprises two sets of measuring apparatus with flow-paths from 1 to 8 and la to 8 respectively. Two electrode assemblies 6 and 6a, one in each flow-path, are provided and selected alternately by a transistorized switching device with lamps 23, 24 to indicate the selected electrode assembly. The electrode assembly may be platinum/calomel and the cell potential is recorded at 14a after amplification at 13, the power supply being via plug 15, switch 16 and lamp 17. The apparatus is preferably mounted in two connectable housings 9 and 10. Threshold devices may be used to monitor the electrode potential and to control the addition of chlorine or ozone to water in a disinfecting plant.
Patent GB-1331767-A (GB)
Title: Door latch
IPC: E05C1/14
Filed: 1970-10-09
Abstract: 1331767 Latches DECALOCK Ltd 9 Oct 1970 [14 Oct 1969] 48054/70 Heading E2A A latch comprises a pair of handle mounting members 22, 23 bolted together and with portions 24, 25 extending into an opening in a door, handles 20, 21 pivot thereon on pivot pins 69, 70 a latch bolt 56 slidable in a passage in the door housing and sleeve 52 with a face plate 51, the latch bolt being urged outwardly by a spring 59 and having a slot 64 and a double chamfered web 67 engaging a cam surface 83 or 84 on a cam member 82 extending from a stem 42 on the handle 21 whereby pressing or pulling the handle 21 presses the cam surface against the chamfered surface of the web and withdraws the bolt, the handle 20 having a stem 41 with a pair of lateral projections 90 which engage in grooves 89 in a channel 86 of the member 82 whereby pivoting the handle 20 also withdraws the bolt. A spring 92 between the stem 42 and pivot pin 69 urges the cam member to inoperative position. The second cam surface allows the latch bolt to be reversible for use on the other edge of the door. The slot 64 allows axial movement of the cam member 82 in order that the latch may be used on doors of different thicknesses.
Patent GB-1115548-A (GB)
Title: Process for the electrolytic manufacture of compounds of trivalent phosphorus
IPC: C01B25/00
Filed: 1966-10-26
Abstract: Trivalent phosphorous compounds are formed by electrolytic reduction of pentavalent phosphorus in an electrolyte comprising the compound of pentavalent phosphorus and a solvent having a water content of less than 10% by weight (preferably less than 1%), the trivalent phosphorus compound obtained being recovered from the electrolyte in known manner.  As the solvent monohydric and polyhydric alcohols, e.g. methanol, ethanol, glycol or glycerol; ethers, e.g. diethylether; ketones, e.g. acetone; or sulphones, e.g. tetramethylene sulphone, may be used.  The pentavalent phosphorus compound used may be orthophosphoric acid, e.g. of strength >85%, alkali metal phosphate, polyphosphoric acid, phosphorus pentoxide or an acid phosphoric acid ester.  The electrolyte may also contain a substance to improve conductivity thereof, e.g. ammonium phosphate or an alkyl ammonium salt, and an agent capable of binding water.  The process may be carried out using a diaphragm cell and lead electrodes may be used.
Patent GB-1270252-A (GB)
Title: Improvements in or relating to switchgear units
Inventor: CATON GEORGE
IPC: H02B13/02
Filed: 1968-03-26
Abstract: 1,270,252. Metal clad switchgear for ring mains. YORKSHIRE SWITCHGEAR & ENG. CO. Ltd. 25 June, 1969 [26 March, 1968; 11 Oct., 1968], Nos. 14419/68 and 48220/68. Heading H1N. A ring main switchgear is arranged for minimum dimensions with all control levers accessible from the front and top; incoming cable boxes 3 are placed substantially coplanar with the front panel of a main switch chamber 5 and the blades 6 of the main switches connecting the cables 2 to the bus-bars 13 serve as the fixed contacts of earthing switches 8 when in the open position. The switchgear is designed to mount directly on to a transformer casing (not shown) connections to the transformer being made by terminals 24. In a rear chamber 16 a switch-fuse unit connects the terminals 24 to the bus-bars 13. The main switches 6, an isolator 14 of the switch fuse and the earthing switches 8 are operated by handles 10, 11, 17 respectively pivoted in the sides of the easing and accessible from front and top of the switchgear. The earthing switches 8 are interlocked with the main switches 6 and with access lids 12, 12, 21 which respectively permit the coupling of test gear and the withdrawal, on a carriage 20, of the fuses 15. The chambers are oil filled. Other units may be connected to the ends of the busbars 13 by removing covers (35) (Fig. 5, not shown) in the side walls.
Patent GB-1447334-A (GB)
Title: Cameras
IPC: G03B17/56
Filed: 1974-11-07
Abstract: 1447334 Camera accessory FRANKE & HEIDECKE GmbH [trading as ROLLEI-WERKE FRANKE & HEIDECKE] 7 Nov 1974 [24 Nov 1973] 48284/74 Heading G2A A bayonet-fitting accessory 1 for a camera 12 has a toggle 5 connected by a threaded pin 19 to a pinion 4, toggle 5 being rotated to effect locked attachment to the camera by the outward movement of a rack 6 and handle 17 under the action of a spring 8 on release of the rack by inward movement of a roller-type lock 10 connected to an outwardly biased release knob 7 (which is pressed in when the attachment and camera are connected). The accessory is released by pressing in handle 17 and rack 6 once more.
Patent GB-1262308-A (GB)
Title: Fastening assembly
Inventor: FORKIN MATTHEW LEO
IPC: A01K5/00
Filed: 1969-10-01
Abstract: 1,262,308. Fastening device. M. L. FORKIN. 1 Oct., 1969 [2 Oct., 1968], No. 48292/69. Heading E2B. An assembly comprising two members 2, 3 or 9, 10 in abutting relationship each of which is provided with a regular polygonal hole 6, 4 or 11 and a removable regular polygonal pin 7 or 12 extending through the polygonal holes such that the members are releasably held at a discrete fixed relative angle to each other, the pin having stop means 8 or 13, 14 preventing it passing completely through the holes.
Patent GB-1491253-A (GB)
Title: Variable length rotor or propeller blade
IPC: B64C11/28
Filed: 1974-11-08
Abstract: 1491253 Helicopter rotor blades; air screw propellers UNITED AIRCRAFT CORP 8 Nov 1974 [26 Dec 1973] 48455/74 Headings B7W and B7V A variable length blade for a helicopter rotor or a propeller comprises an inner blade portion and an outer blade portion slidable over the inner portion by a jackscrew and nut arrangement and means within the inner blade portion for resisting torque loading imposed on the jackscrew and nut arrangement. As described for a helicopter, the rotor mechanism comprises an engine 36 driving a pinion 44 meshing with a further pinion 46 on the lower end of a rotor shaft 48 connected to a rotor head 10 to which a plurality of rotor blades 12 are attached. Mounted within shaft 48 are further coaxial shafts 50 and 52 which rotate with the rotor and terminate at their upper ends in a differential mechanism 54, 56, 60, 62 and at their lower ends are formed with disc brakes 64, 66. Each blade comprises an outer aerofoil portion 70 slidably mounted by shaped blocks 82, 84, 86, 88 on an inner oval-section tube 74 having an enlarged root portion and pitch control horn 32 and carried for pitch changing movements by bearings 98 on a fitting 96 fast with head 10. The pinions in the rotor head, e.g. pinion 62, drives a jackscrew 40 on which are meshed a plurality of nuts 134, 136, 138, 140 and 142 each connected to the blade tip fitting 80 by a respective pair of rods 144, 146, the outer end of jackscrew 40 being mounted by a bearing 12 housed in a fitting in the outer end of tube 74. The nuts 134-142 are shaped to fit within a lozenge-shaped torque-tube 92 the profile of which provides adequate freedom thereon of oval tube 74 for pitch-changing, the tube being provided with pads 113 to reduce friction with tube 74. When it is necessary to extend the span of the rotor blades the brake 64 will be applied thereby causing the differential in the rotor head to drive jackscrew 40 so that the restraint against centrifugal loading on aerofoil portion 70 provided by nuts 134-142 and the rods 144, 146 will be removed. To retract the blades brake 66 is applied to cause the jackscrew 40 to rotate in the opposite direction and draw the portion 70 inwardly. Provision is made for the supply of cooling air through the jackscrew/nut mechanism during its operation. The rotor shaft carries a cyclic pitch swash-plate mechanism 22 when the invention is applied to helicopter rotors. Reference has been directed by the Comptroller to Specification 1,332,658.
Patent GB-1086435-A (GB)
Title: Improvements in or relating to multistage counter electric circuit arrangements
IPC: H03K21/00
Filed: 1965-11-16
Abstract: 1,086,435. Electronic counters. SIEMENS A.G. Nov. 16, 1965 [Nov. 11, 1964], No. 48525/65. Heading G4A. Trains of pulses are counted in a timedivision multiplex system in which the delay imposed by delay-lines S1, S2, S4 is one input pulse time less than the cycle time. Each pulse train is allotted a time slot in the cycle so that the beginning of an input pulse zi coincides with read-out from the delay-lines at time t1. Readout sets up triggers K1, K2, K4 appropriately after which pulse t2 opens gate Gi. Pulse zi then adds 1 to the readings of triggers K1, K2, K4, transfer where necessary taking place through gates G³s, likewise responsive to pulse zi. The new value is returned to the delay line at time t3.
Patent GB-1438584-A (GB)
Title: Disperse azo dyes of the 2,6-diaminopyridine series
IPC: C07D213/85
Filed: 1973-10-19
Abstract: 1438584 Disperse azo dyes of the 2,6-diaminopyridine series BASF AG 19 Oct 1973 [21 Oct 1972] 48765/73 Heading C4P Disperse dyes of the 2,6-diaminopyridine series have the formula in which D is the radical of a diazo component, R is H, unsubs. or subs. alkyl of 2-7C or phenyl, X and Y are H or unsubs. or subs. alkyl, cycloalkyl, aralkyl or phenyl, and Z is carbamoyl or cyano. D may be opt. subs. phenyl, phenylazophenyl, anthraquinone, benzthiazolyl, benzisothiazolyl, thiazolyl, thiadiazolyl or thienyl. The dyes are produced by diazotization and coupling, and give yellow to blue shades with textile materials such as acrylonitrile polymers, synthetic polyamides, cellulose acetates, and particularly synthetic linear polyesters such as polyethylene glycol terephthalate.
Patent GB-1030669-A (GB)
Title: Semiconductor devices
Inventor: KURPISZ ZENON JAN
IPC: H01L29/00
Filed: 1964-12-02
Abstract: 1,030,669. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Dec. 2, 1964, No. 48961/64. Heading H1K. In a PNPN device comprising anode, cathode, gate, and base regions formed in a semi-conductor wafer, a layer covering the whole surface of the wafer is divided into an anode region and a gate region (containing the cathode region 3) by means of a groove or moat F extending more than halfway through the wafer from one face thereof in order to prevent surface breakdown under reverse bias. During the successive diffusions involved in making the device, use is made of the property possessed by silicon dioxide of acting as a mask for phosphorus but not for gallium. The groove or moat F may be produced by etching or by air abrasion or other mechanical method.
Patent GB-1094874-A (GB)
Title: Methacrylic resin-vinylidene chloride resin compositions and method of production thereof
IPC: C08F259/04
Filed: 1964-12-08
Abstract: Methyl methacrylate syrups, which can be polymerized to form non-inflammable, transparent products, having a viscosity between 0.1 and 50 poise at 25 DEG  C. comprise as essential constituents (A) a copolymer of vinyl chloride and vinylidene chloride containing from 4-60% by weight of vinylidene chloride units or a polymer mixture containing predominantly such a copolymer, dissolved in (B) methyl methacrylate monomer or a mixture of copolymerizable monomers containing predominantly methyl methacrylate.  The vinyl chloride/vinylidene chloride copolymer may be admixed with, for example, poly-a -methylstyrene or polymethyl methacrylate. Copolymerizable monomers specified are styrene, ethyl acrylate, allyl methacrylate, acrylonitrile and ethylene glycol dimethacrylate.  The syrup may also include flame-retardant compounds such as antimony oxide or alkoxide, allyl or alkyl antimony, antimony salts of organic acids, antimony halides; tricresyl, diphenyl cresyl, alkyl diallyl, trioctyl or trichloroethyl phosphate; and chlorinated paraffin. Other optional additives include glass fibres, natural and synthetic fibres, metal powder and other viscosity augmenters, U.V. or heat stabilizers, polymerization inhibitors, chain transfer agents (unspecified), fillers, dyes and reinforcing agents. The syrup can be polymerized in bulk to form articles, either in a mould, on a surface, e.g. plastic, wood or glass fibre cloth, or impregnated in a glass fibre mat; or it may be polymerized while suspended in aqueous medium, e.g. in the presence of potasium polymethacrylate, to produce a granular polymer which can be shaped subsequently.  Polymerization catalysts exemplified are benzoyl peroxide and a benzoyl peroxide/hydrogen peroxide combination.ALSO:cis- and trans-4-Aminomethylcyclohexane-1-carboxylic acids and salts thereof are prepared by hydrogenating cis or trans-4-cyanocyclohexane-1-carboxylic acid or a C1- 4 alkyl ester thereof in a solvent under an atmosphere of hydrogen and in the presence of a catalyst and, in the case where the starting material is an ester, hydrolysing the product, optionally followed by salt formation.
Patent GB-1091541-A (GB)
Title: Driver training apparatus
IPC: B60Q9/00
Filed: 1964-12-08
Abstract: 1,091,541. Counting speed variations. B.D. GREENSHIELDS. Dec. 8, 1964 [Dec. 9, 1963], No. 49872/64. Heading G1K. [Also in Divisions B1 and G4] A counting apparatus for indicating the number of changes in speed of a vehicle comprises an apertured ring 46, Fig. 3 (not shown), associated with the speedometer, and a lamp 47 and photocell 48. Pulses from the cell which indicate a speed change, feed a cumulating counter 6, and, during half or one minute intervals, feed alternately counters 2a, 2b so that the number of changes occurring during the preceding interval can be read while the other counter is stepping. A further counter 5, counting timing pulses, is operative only when the vehicle is moving, contacts 126 being opened by a magnet on ring 46 to prevent counting when the speedometer is at zero.
Patent GB-1159104-A (GB)
Title: Air Pressure Regulator and Compensator for Pneumatically Operated Power Tools
IPC: B25D9/16
Filed: 1966-11-08
Abstract: 1,159,104. Nut runners. SKIL CORP. 8 Nov., 1966 [3 Dec., 1965], No. 50001/66. Heading B3N. [Also in Division F2] A pressure regulator in a pneumatic power tool such as an impact wrench comprises a valve member 48 slidably supported in a passageway 29 in the tool housing 11 and spring means 62 for maintaining the valve member in a predetermined axial position until the air pressure upstream of the valve member rises above a predetermined value when the valve member decreases the flow to maintain the downstream pressure at a predetermined value. A cylindrical portion 61 of the valve member approaches a bore 46 in a fixed bush 45 to reduce the flow, the movement being cushioned by air trapped in a bore 40 open to atmosphere only through a small port 43. An on-off valve 23 provided with an adjustable threaded-disc stop 27 is interposed between the regulator and the motor of the tool. The valve member 48 may have blind bores at its opposite ends to make it more responsive to changes in pressure and has a shouldered portion 57 to engage the bush 45 when the air pressure is at or below the predetermined value.
Patent GB-1071747-A (GB)
Title: Fleeces or mats of glass fibres or similar mineral fibres, and a method and an apparatus for producing such fleeces or mats
IPC: D04H1/4218
Filed: 1963-12-18
Abstract: A fleece or mat (9) (Fig. 5 not shown) of glass or like mineral fibres is impregnated with a binding agent in a bath (12) and, while still moist, is drawn under tension past a spiked non-driven roller (15) which serves to perforate the mat without destroying or removing any of the fibres thereof.  The fleece is then conveyed on a belt (18) to a drying furnace to cure and set the binder.  Alternatively a bonded fleece may be remoistened and drawn past the spiked roller. The perforated fleece material finds application in the jointing of plaster board wall panels (see Division E1-2).