baber/WOPTO huggingface dataset:
Patent GB-983377-A (GB)
Title: Improvements relating to the reserve fuel supply for road vehicles
IPC: B60K15/06
Filed: 1962-11-06
Abstract: 983,377. Fuel supply systems. J. C. RIDOUT, and W. F. HILL. Feb. 5, 1964 [Nov. 6, 1962], No. 41851/62. Heading F1B. The reserve fuel supply of a vehicle is provided with a control tap or valve which after being moved to its reserve position is automatically returned to its normal position when the ignition or a vehicle immobiliser which is subsequently closed. The circuit in Fig. 1 comprises a battery D, ignition switch E, reserve tap solenoid C, reserve button switch B and "avalanche diode" A, Shockley diode or combination of Zener diode and rectifier. With ignition switch E closed, pressing of button B energizes solenoid C to bring in the reserve fuel supply and then on release of button B the inductive surge voltage generated by solenoid C causes breakover of device A from the non-conducting to conducting state thus providing a current supply to solenoid C to maintain the reserve fuel supply until the ignition switch E is opened when the diode A returns to its high resistance state. A small condensor H or ferrite beads on the wiring to protect the device A from electrical interference and an indicator lamp G may be provided. In a modification (Fig. 2, not shown) switch B is replaced by a switch which acts as switch B when pressed but when withdrawn breaks the circuit between switch E and device A hence cutting off the reserve fuel supply. Alternatively the reserve tap is operated by a solenoid with a 'hold on' contact which is energized either directly or through a relay when the reserve switch is operated. A mechanical coupling may alternatively be provided between the ignition switch and either a reserve switch or manual reserve tap which incorporates a latch releasable by opening of the ignition switch.
Patent GB-985623-A (GB)
Title: Semiconductor circuit complexes and method of making same
Inventor: NOYCE ROBERT NORTON
IPC: H01L27/06
Filed: 1961-11-24
Abstract: 985,623. Semi-conductor devices. FAIRCHILD CAMERA & INSTRUMENT -CORPORATION. Nov. 24, 1961, No. 42157/61. Heading H1K. A semi-conductor circuit complex comprises a wafer with zones of one conductivity type separated from each other by material of the opposite conductivity type, each zone of said one type having a zone of opposite type formed on it. A typical complex is formed from the wafer shown in Fig. 1 comprising a P-type grid which isolates N regions 13. The wafer may be formed by diffusing impurity of one type into a silicon wafer to provide a uniform doping and then diffusing impurity of the opposite type from the gaseous or solid phase simultaneously from both faces into unmasked areas of the wafer. Part of a circuit complex formed from it is illustrated in Fig. 5. One N region 31 is used as the collector zone of a transistor, the base 37 and emitter zone 38 of which are formed by sequential diffusion of acceptor and donor impurities into one face. A PN diode is formed from adjacent N region 32 by diffusion of acceptor to form P region 41 in the lower face. The wafer is protected by a coating 42 of insulation, regions exposed through apertures in the coating being interconnected as desired, e.g., at 46, 43 by metal plated on the coating. Capacitive connections may also be made through the insulating layer. Reference has been directed by the Comptroller to Specification 910,976.
Patent GB-868668-A (GB)
Title: Improvements relating to rocket motors
Inventor: CARTER JOHN MICHAEL MINDEN
IPC: F02K9/97
Filed: 1958-12-31
Abstract: 868,668. Fluid-pressure servomotor-control systems. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 21, 1959 [Dec. 31, 1958], No. 42270/58. Class 135. [Also in Group XXVI] A pressure-sensitive valve for use in connection with a single chamber dual thrust rocket motor, that is one designed to operate both as a boost motor and as a sustainer motor (see Group XXVI) is shown in Figs. 3 and 4 and communicates at its forward end with propellent gases by means of a duct 28, see Fig. 1, and at its rearward end with hydraulic fluid contained in the annular space 11, by means of a vent 26. The valve comprises a valve spindle formed in two parts 39, 40 screwed together so as to constitute a differential piston, the spindle also being formed with a collar 42 and with an annular recess 55. A spring-loaded ball is disposed within the spindle part 40 and controls an orifice 47. The spindle is prevented from moving to the right from the position shown, by means of two shear discs 57, 58 as shown in Fig. 4. When the motor is fired, the propellent gases by-pass the sustainer nozzle 17 and flow through the openings 12 in the axially-movable nozzle carrier 8 to discharge through the boost nozzle 19, the parts being in the position shown in Fig. 1. Gases also pass through the duct 28 into the space 34 within the valve 27, the gases then passing through the ball-controlled orifice 47 and into the space 46. The gas pressure on the valve spindle at this stage causes it to burst the shear discs 57, 58 and to move to the right until the collar 42 abuts against the casing. At the end of the boost phase, the gas pressure drops, but due to the high-pressure gas trapped in the space 46, the valve spindle is moved to the left until the annular recess 55 comes into line with the spring-loaded peg 53 which is then projected into the recess so locking the valve stem against further movement. The passage 56 is incovered by the axial movement of the valve stem and so hydraulic fluid in the annular space 11 is vented through ducts 26 and 56, the tabs 22 are sheared by the residual pressure of the propellent gases acting on the nozzle carrier and so the latter is moved to the right to the position shown in Fig. 2. The balls 20 disengage from the holes in the nozzle carrier and so the boost nozzle 19 becomes disengaged. The by-pass passages 12 are now rendered ineffective and propellent gases discharge through the sustainer nozzle 17.
Patent GB-1493220-A (GB)
Title: Screw or nut and a washer intended to be held captive thereon
IPC: F16B39/26
Filed: 1976-10-12
Abstract: 1493220 Washers PYE (ELECTRONIC PRODUCTS) Ltd 12 Oct 1976 42331/76 Heading F2H [Also in Division H2] In a combination of a screw 1 or a nut and a washer 9 intended to be held captive thereon, the washer 9 has an apertured portion 13 to fit over the shank of the screw 1 or the shank of a male threaded fastener with which the nut is to co-operate, and a further portion 10, the portion 13 being non-planar and such that it will be plastically deformed by the clamping force exerted by the screw or nut when the screw or nut is tightened, said plastic deformation causing the further portion 10 of the washer to be deflected towards the longitudinal axis of the screw or nut so as to engage over a shoulder 4 of the screw or nut to couple the washer to the screw or nut against axial separation. As shown, the washer 9 is of W form, with a V- section apertured portion 13 to be plastically deformed and two arms 10, 11 to engage the shoulder 4 of the screw head 2. A spring washer 8 is interposed between the screw head and the washer 9. The washer 9 may have other shapes, e.g. domed circular apertured portion 13 with one or more arms extending from its periphery.
Patent GB-424694-A (GB)
Abstract: 424,694. Current and pressure meters. STEVENSON, H. A., 146, Park Road, Aston, Birmingham. Oct. 13, 1933, No. 28302. [Class 37] In measuring-instruments in which a movable coil 1 is pivotally mounted on a fixed core 2, the outer ends of the spiral control springs 8 are anchored to adjustable members 9 mounted on the core. In the form shown, the coil 1 has pivots 7 engaging bearings 3 slidably mounted in bushes 4 against the action of springs 6. The bushes 4 have flanged heads 11 which hold discs 10 frictionally against the core, the discs 10 carrying the anchor members 9 from which they are separated by insulators 10<b>. The front anchor member 9 can be adjusted from outside the casing of the instrument by means of a screw pin 12 which engages a slide 13 having a forked projection 15 engaging a pin 10<c> carried by the anchor member. The lead wires 17, 18 are connected to arms 19<a> mounted on the discs 10, so that all the moving parts of the instrument are carried by the core. The core is held concentrically with the pole faces of the magnet 16 by distance pieces 19. The latter carry studs 20 which pass between the jaws of the magnet and engage spring clamping plates 22.
Patent GB-1526847-A (GB)
Title: Process for converting ethane to ethylene
IPC: B01J19/24
Filed: 1976-10-13
Abstract: 1526847 Dehydrogenating ethane ALLIED CHEMICAL CORP 13 Oct 1976 [14 Oct 1975] 42610/76 Heading C5E A process for producing ethylene by the oxidative dehydrogenation of ethane comprises (a) passing a gas containing ethane under pressure into a first elongated gas zone; (b) passing a gas mixture containing chlorine and oxygen under pressure into a second elongated gas zone positioned along said first gas zone, said first and second elongated gas zones being separated by a porous member; (c) maintaining the pressure of the gases in said second gas zone in excess of the pressure in said first gas zone for diffusion of oxygen and chlorine into said first gas zone; (d) maintaining said first gas zone under conditions sufficient to effect reaction therein of at least a portion of said diffused oxygen and chlorine with ethane for production of ethylene, and (e) withdrawing the gas product containing ethylene from said first gas zone.
Patent GB-1262708-A (GB)
Title: Method and apparatus for liquid treatment of hand or machine-knitted materials
IPC: D06B21/00
Filed: 1969-08-27
Abstract: 1,262,708. Treating textiles. VEPA AG. 27 Aug., 1969 [28 Aug., 1968; 2 May, 1969], No. 42667/69. Addition to 1,199,162. Heading D1L. The process and apparatus of the Parent Specification are modified in that several lengths of material are passed in parallel through the apparatus, there being width-holding devices for the material between the various treatment devices. Conveyor belts having width-holding prongs or J-box storage means are specified holding devices. The other details are similar to those disclosed in the Parent Specification.
Patent GB-1187422-A (GB)
Title: Fasteners
Inventor: FISHER JULIAN VERNON
IPC: F16L3/08
Filed: 1967-04-06
Abstract: 1,187,422. Clamps. ILLINOIS TOOL WORKS Inc. 6 April, 1967 [24 Oct., 1966], No. 42729/69. Divided out of 1187421. Heading E2B. A fastener made of one piece of a plastics material .consists of a head and means 12 adapted to retain the fastener to an apertured workpiece 18; the head including a workpieceengaging portion 26, a wall portion 32 connected with a first margin of the workpieceengaging portion and deviating from the workpiece-engaging portion so as to provide a pocket between these two portions for accommodating elongated objects 30, and substantially rigid means 27, extending from a second margin of the workpiece-engaging portion opposite the first margins or margin, and forming a throat open towards the pocket for receiving a free extremity of the wall portion when the wall portion is bent; this throat-forming means including a first shoulder 33 spaced laterally from the engaging portion, there being a second shoulder 36 on the free extremity of the wall portion, the first shoulder being capable of engagement with the second shoulder to detachably retain the free extremity of the wall portion within the throat, the disposition of the throat and the wall portion being such as to ensure an interlocking relationship of the first and second shoulders when interengaged. The wall portion 32 includes a resilient tang 35 for urging the first and second shoulders into the interlocking relationship when cooperatively engaged with one another.
Patent GB-1353876-A (GB)
Title: H2s dehydrogenation of lower alkanes
IPC: C07C5/333
Filed: 1972-09-15
Abstract: 1353876 Dehydrogenation of alkanes CONTINENTAL OIL CO 15 Sept 1972 [20 Dec 1971] 42877/72 Heading C5E Ethane or propane or mixtures thereof are dehydrogenated to the corresponding alkenes by mixing 0À10 to 30 parts / wt. H 2 S (or an amount of a compound which yields an SH radical in the cracking environment to yield that amount of H 2 S) per 100 parts alkane and passing the mixture plus 0À1 to 1 part/wt. steam per part by wt. mixture to a reactor at 1300 to 1800 F., residue time 0À1 to 10 sees., with a total pressure of 0-150 p.s.i.g. and hydrocarbon partial pressure of 5-120 p.s.i.a. Examples of materials yielding H 2 S on cracking are mercaptans, mercaptides, thioesters, CS 2 , (NH 4 ) 2 S, disulphide oils, sulphur and ammonium polysulphide.
Patent GB-1194250-A (GB)
Title: Compressor Lubrication Arrangement.
IPC: F04B35/04
Filed: 1967-09-20
Abstract: 1,194,250. Lubricating. CARRIER CORP. 20 Sept., 1967 [28 Oct., 1966], No. 42878/67. Heading F2A. [Also in Division F1]  A fluid compressor comprises compressor means in a crankcase 12, a lubricant pump 50 supplying lubricant to the compressor means, and a lubricant sump 24 separate from the crankcase. To start the compressor 10, switch 80 is closed and a solenoid valve 72 in passage 70 opens to allow passage of gas from crankcase 12 into sump 24 to equalise the pressures. Time delay mechanism 84 then closes switch 85 to start the compressor. Oil pump 50 is driven by crank-shaft 20 and draws oil from sump 24 through line 56 with check-valve 58, and supplies it through passage 60 to bearings 42, 43 &c. Oil which accumulates in crankcase 12 is carried into sump 24 via passage 70 by gas leaked from piston 30, the gas then passing via passage 74 with check valve 75 into the piston cylinder 28 of the compressor. To shut down the compressor switch 80 is opened, thus closing valve 72 which, with valves 58 and 75, prevents flow of gas into the sump 24 while the compressor is inoperative.
Patent GB-914671-A (GB)
Title: Improved light metal piston for internal combustion engines
IPC: F16J1/16
Filed: 1959-12-17
Abstract: 914,671. Pistons. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Dec. 17, 1959 [Dec. 17, 1958], No. 42972/59. Class 122(1). The gudgeon-pin bosses 3 of a light metal piston 1 are reinforced by heavy metal, e.g. steel rings 2, of rectangular cross-section shrunk on the bosses. The bores 4 of the bosses are increased towards the piston interior so that they become cylindrical in the hot state of the piston during operation.
Patent GB-1024856-A (GB)
Title: Improvements in or relating to devices for controlling cut-off mechanisms
IPC: B26D5/40
Filed: 1962-11-13
Abstract: 1,024,856. Cutting-apparatus. KOPPERS CO. Inc. Nov. 13, 1962 [Dec. 4, 1961], No. 42978/62. Heading B4B. [Also in Division G3] The speed of flying shears 11 is controlled in relation to that of rolls 13 feeding a web, e.g. of card for box making, to produce cut lengths S equal to a desired length which is digitally expressed on a switched decade potentiometer 24. This potentiometer is connected across a shears speed D.C. tachogenerator 23 and its output is compared with the signal from a rolls speed tachogenerator 22; the resultant signal represents by its magnitude and polarity the size and direction of differences between desired length and actual length cut, as determined by the ratio of shears speed to rolls speed. The error signal is ultimately used to adjust a variable speed gear 16 in the transmission from driving motor 21 to the shears 11, and to do this it is filtered at 47, converted to A.C. of appropriate phase sense by a vibrator unit 48, amplified by valve amplifiers 63, 68 (the first having negative feedback 64), converted back to D.C. by a second vibrator 73 synchronous with the first, and is then applied through a cathode follower stage 82 to a magnetic amplifier 83 controlling a two-phase reversible servomotor 71 which makes fine adjustments to the variable speed gear 16. Rate feedback to the amplifier 68 is provided by an A.C. tachogenerator 98 coupled to the adjusting shaft 97. Voltage limiting diodes are included at two points in the chain, details of which are described (Fig. 4, not shown). Large error signals, e.g. due to a change in desired length, are detected by a voltage-sensitive relay 101 which, when operated, disengages a clutch 106 and operates a high speed correcting motor 72. Adjustment is provided to match the characteristic of tachogenerator 22 to that of 23, and the potentiometer selector controls also operate switches for local or remote display of the desired length setting (Fig. 2, not shown).
Patent GB-1129219-A (GB)
Title: Reaction product of a silane and an unsaturated fatty substance and coating compositions for siliceous materials comprising the same
IPC: C07F7/12
Filed: 1967-09-22
Abstract: 1,129,219. Coating surfaces. FATS & PROTEINS RESEARCH FOUNDATION Inc. 22 Sept., 1967 [29 Sept., 1966], No. 43330/67. Heading B2K. [Also in Division C3] Siliceous materials such as concrete and mortar are rendered water-repellent by coating with a composition comprising the reaction product of a silane having a hydrolysable chlorine, bromine or iodine substituent and a hydrogen atom linked to silicon and a fatty substance comprising an ester of a trihydric alcohol and an acid containing internal unsaturation. The preferred fatty substance is a mixed triglyceride of unsaturated and saturated acids, e.g. tallow, lard and olive, linseed, soybean and cottonseed oils. The products are dissolved or dispersed in a volatile vehicle such as mineral spirits or kerosene. On exposure, they hydrolyse and condense and form a chemical bond with the calcium in the silicates.
Patent GB-1263518-A (GB)
Title: Improvements in or relating to electrical conductors
Inventor: WOOLCOCK ALAN
IPC: H01L39/24
Filed: 1969-09-02
Abstract: 1263518 Super-conductors IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 18 Aug 1970 [2 Sept 1969] 43330/69 Headings H1A A4D A super-conductor composite is produced by forming longitudinally extending grooves in the surface of a rod or tube of ductile normal metal, locating a super-conductor filament in at least one of the grooves and closing the mouths of the grooves. As shown, Fig. 1, Cu rod 10 is provided with grooves 11 in each of which is inserted a stabilized super-conductor comprising a plurality of filaments of Nb 44 wt. per cent Ti embedded in Cu. A sheath 13 surrounds the rod to hold the wires in the grooves and the assembly is compacted and elongated by swaging, rolling and drawing. The composite may be flattened to form a rectangular strip, Fig. 2 (not shown). In a modification, Fig. 3 (not shown), the grooves are twice the depth and contain either two stabilized super-conductors, or one stabilized super-conductor and a Cu packing wire. In a further modification, Fig. 5 (not shown), a Cu rod is provided with grooves half the depth of the stabilized super-conductors which are positioned in them, a strip of Al is wrapped round and pressed against the wires and its edges are welded together. The grooves may extend helically round the core which may be tubular. The grooves may extend into the core at an angle to the radius and may be closed by swaging. The outer cover may comprise a preformed tube or a strip wrapped round and seam welded. The core may be produced by grooving one face of a strip forming it into a tube and welding the edges. An inner tube or solid rod can be inserted into the tube and may be of a reinforcing material such as stainless steel. Strengthening wires of Cu-Be-stainless steel, Cu-Ni or Ti may be inserted into some of the grooves. Stabilized super-conductors are preferably twisted about their axis before being inserted into the grooves.
Patent GB-1378036-A (GB)
Title: Microwave radiation monitor
IPC: G01S13/56
Filed: 1972-09-20
Abstract: 1378036 Intruder alarms PEAK TECHNOLOGIES Ltd 10 Aug 1973 [20 Sept 1972] 43542/72 Heading G4N [Also in Division H4] A microwave radiation monitor comprises a horn type aerial containing a diode coupled to a first monitoring circuit, which provides an alarm signal when the received signal level falls below a pre-determined value, and coupled to a second monitoring circuit which provides the alarm signal when the output from the diode includes a component having a frequency within a pre-determined range, under 100 Hz. The monitor also comprises means for modulating the energy entering the aerial at a fixed frequency which is substantially greater than 100 Hz, the output signal of the diode being demodulated to give a signal at the modulation frequency the amplitude of which is indicative of the energy level within the aerial. As described, two diodes D1, D2 are contained within a half-cheese aerial having two slightly divergent plane walls 1, 2, a generally parabolically shaped wall 3, and a front panel 6 of radiationtransparent material. On top of the aerial is a casing 4 of the same shape, on which electronic components 5 of the monitor are mounted. When used in conjunction with a microwave radar unit arranged to provide cover of an area under surveillance, the monitor may be mounted on the boundary of said area. It provides assurance that the radar unit is radiating, and additional intrusion detection means. The actual mounting may be by means of a universal ball-joint connecting the unit to a wall-plate. The diode D1 is connected to a multivibrator which comprises transistors T1, T2, and it modulates oncoming radiation at a frequency of 1 kHz. Output at that frequency from the diode D2 is amplified by an integrated circuit amplifier A1, and is detected in a circuit comprising a diode D3, a transistor T3, and a capacitor C7. The return circuit to earth for the latter circuit is via a transistor T6 which, if the 1 kHz signal is present in the output from the amplifier A1, will conduct and hold an alarm relay BL1 energized. Any Doppler frequency components (e.g. in the range 1 to 100 Hz) appear as changes of voltage at the collector of the transistor T3, and are amplified by a circuit including a transistor T4. Output from the transistor T4 is detected in a circuit comprising a diode D4, a transistor T5, and a capacitor C10. Output from the transistor T5 is applied to cause a reduction in the voltage available for the collector supply of the relay drive transistor T6, so that the relay RL1 is de-energized, and the alarm signal is given.
Patent GB-1500748-A (GB)
Title: Method and apparatus for electrolytic recovery of silver from photographic fixing baths
IPC: C25C7/06
Filed: 1975-10-23
Abstract: 1500748 Electrolytic recovery of silver GALAFIT SNC DI ARRIGONI & C 23 Oct 1975 [12 Dec 1974] 43542/75 Heading C7B Silver is electrolytically recovered from a photographic fixing bath by simultaneously supplying voltage from a variable voltage generator to an electrolytic silver recovery cell 6 and an auxiliary electrolytic test cell 14, both cells containing the liquid of the bath, increasing the voltage to a value at which silver deposited on the cathode 18 of the test cell is sulphurized, terminating the voltage supply to the test cell, and continuing electrolytic recovery of silver in the cell 6 with the voltage initially at the value. The test cell may be a glass vessel 14, in which are immersed steel electrodes 16, 18, disposed on one side of a cabinet (10), Fig. 1 (not shown), on the front face of which are arranged a 3-section and 3-position switch 30, scale (24) and control knob (26) for regulating the setting of a device 3 of a voltage changer 15 connected to electrical supply leads 34 mounted inside the cabinet with a transformer 4, rectifier diode 7 and geared motor 13 for automatically operating the changer 15 via a drive shaft; a button 28 may be provided for (un)coupling the motor shaft to the regulating device 3. The recovery cell 6 may comprise two parallel steel plate cathodes 56, 58 between which is disposed at least one parallel graphite plate anode 60, and a stirring belt (52), Fig. 3 (not shown) with projections (54), moving around rollers (48, 50) driven by electric motor 40 between the cathode and the or each anode.