baber/WOPTO huggingface dataset:
Patent GB-1282669-A (GB)
Title: Improvements in or relating to gas discharge surge voltage arresters
IPC: H01T1/22
Filed: 1970-10-02
Abstract: 1282669 Cold-cathode tubes; cathode materials SIEMENS AG 2 Oct 1970 [3 Oct 1969] 46904/70 Heading H1D [Also in Division C7] At least one of the electrodes 2, 3 of a gas discharge surge voltage arrester is provided on its face adjacent the other electrode with a layer 4 consisting of an alloy of Ba and Al containing between 90 and 30% by weight of Ba and between 10 and 70% by weight of Al, with 50% Ba and 50% Al preferred. The arrester is formed by sealing frusto-conical electrodes 2, 3 of Ni-Fe or Ni-Fe-Co alloy to a tubular insulator 1 of glass or ceramic, and is filled with a rare gas. The Ba-Al alloy is purified by heating the arrestor to a temperature of 700‹ to 900‹ C. during manufacture.
Patent GB-1517729-A (GB)
Title: Solid state polymerisation of polyesters
IPC: C08G63/78
Filed: 1975-11-17
Abstract: 1517729 Solid phase polymerization using anti-stick agents STANDARD OIL CO 17 Nov 1975 [21 Nov 1974] 47311/75 Heading C3R The solid phase polymerization of a polyester having an initial inherent viscosity of from 0À3 to 0À7 dl./g. is carried out in the presence of 0À05 to 10% by weight, based on the polyester, of a water-soluble alkali metal or alkaline earth metal salt, the water-soluble salt being removed from the polyester after polymerization with an aqueous medium. The examples describe the solid phase polymerization of polyethylene terephthalate using, as anti-stick agents, sodium chloride, sodium sulphate and sodium dihydrogen phosphate.
Patent GB-1192300-A (GB)
Title: Antilocking Control System with temporary retention of the Reduced Brake Pressure
Inventor: LEIBER HEINZ
IPC: B60T8/1761
Filed: 1968-10-04
Abstract: 1,192,300. Aritiskid control systems. TELDIX G.m.b.H. 4 Oct., 1968, No. 47312/68. Heading F2F. In an antilocking control for road vehicles, brake pressure is reduced in response to excessive deceleration of one wheel, i.e. during time t 1 -t 2 , Fig. 2, and is maintained at a reduced level while the wheel is accelerating towards road speed VF by detecting when the acceleration has fallen below a value 18, i.e. at time t 6 . Circuit arrangement.-As shown, switches B, V, responsive to acceleration and deceleration of a wheel control solenoids E, A, operating a brake pressure inlet valve 1 spring-urged to the open position and a vent valve 2 spring- urged to the closed position. The brake operating cylinder is supplied by pipe 4. Operation.-When the deceleration switch is closed (at value 17 time t 1 ) solenoids E, A are energized to close the supply valve and open the vent valve. At time t 2  (when deceleration is reduced to value 17) V opens to release A and close the vent, but E, " slugged " by capacitor 15, retains inlet closed between times t 2 -t 3  when the wheel has started to accelerate a switch B closes to maintain the inlet closed. (Operation of A is blocked by diode 16.) Modifications.-Fig. 3 (not shown) switches B, V, may be connected to two inputs of an amplifier providing different output amplitudes, and the solenoids A, E may be voltage selective (A requiring a high voltage). Figs. 4, 5 (not shown) the acceleration switch (B<SP>1</SP>) makes momentarily to close the inlet valve only while the acceleration is increasing or decreasing between values (18), (20). Fig. 6 (not shown) a small value " slugging " capacitor may be used to control solenoid E through a transistor amplifier in conventional manner.
Patent GB-1169932-A (GB)
Title: Fibrous Rod
IPC: B01D39/18
Filed: 1966-10-21
Abstract: 1,169,932. Felt nib pens. CIGARETTE COMPONENTS Ltd. 21 Oct., 1966 [22 Oct., 1965; 18 May, 1966], No. 47349/66. Heading A4K. [Also in Divisions A2, B1 and D1] A bonded fibrous rod for use as an ink absorber within felt tipped pens, is formed of crimped filaments bonded together at the points of contact and has an evenly deformable peripheral surface such that on transaxial compression of the rod the surface deforms without the formation of irregularities. The rod is formed by feeding the filaments containing a heat activatable bonding constituent to a heating enclosure where an endless tape forms the material into a rod and conveys the rod through the enclosure in which steam is passed through the tape and the rod to activate the bonding constituent. The rod and tape then passes through a cooling enclosure where air is passed through the tape and rod. The tape is separated from the rod which psses via a device which measures the presure drop transversely through the rod and which varies the feed rate of the material in dependence on the measurement, to a cutting device which cuts the rod into suitable lengths. The tape and rod pass through bores which may be of adjustable cross-section in the heating and cooling enclosures, with a threading slit for the tape, being provided and having a removable sealing member. The edges of the tape do not quite meet in the heating enclosure causing a ridge to form on the rod which is removed by a presser arm between the two enclosures. The tape may be woven from nylon or polyethylene terephthalate monofilament, have a coarse or fine weave to produce an embossed or smooth rod, and may have a coating of silicone resin or polytetrafluroethylene. The filaments are fed to the heating enclosure from a bale via an air banding jet, draw rolls, a further air banding jet, and spray guns which may spray the bonding constituent and/or a particle applicator which may apply the bonding constituent and/or activated carbon, silica gel, activated alumina or molecular sieves. The filaments may be of cellulose acetate with glyceryl triacetate or low-density polyethylene particles as the bonding constituent, or a polyolefin, a polyamide, or a polyester.
Patent GB-1192128-A (GB)
Title: Improvements in and relating to Containers
Inventor: BERTHAUD JEAN
IPC: G21C1/30
Filed: 1968-10-07
Abstract: 1,192,128. Skips. COMMISSARIAT A L'ENERGIE ATOMIQUE. 7 Oct., 1968 [13 Oct., 1967], No. 47522/68. Heading B8H. [Also in Division B4] A container for transporting spent fuel elements to a vessel 2 comprises a tube 3 closable at its lower end by flaps 11 pivoted to the tube at 12. The flaps 11 are normally held in the closed position, Fig. 1, by pins 14 engaging notches 15 formed in the pivoted ends of the flaps, these pins being carried by a sleeve 8 slidable on the tube 3. The container is carried by a tongs 1 which grips two half-shell members 7 each mounted on a cranked lever 21 pivoted to tube 3 at 5. One arm of each of the levers slidably extends through a bush 18 pivotally mounted on a sleeve 4 slidable on the tube 3. To load the container it is transported by the tongs 1 to a support 19 whereby on release of the tongs a plate 20 attached to the sleeve 4 causes the latter to move upwardly on the tube 3 and the members 7 are moved to the Fig. 2 position. After loading the container it is released from the support 19 so that the sleeve 4 moves down the tube 3 and the levers 21 bring together the members 7. The container is then lowered by the tongs 1 on to the vessel 2 whereby the top of the vessel raises a flange 9 attached to the sleeve 8 so that the pins 14 leave the notches 15 and the flaps 11 drop to the open position, Fig. 3. On subsequently lifting the container the flaps are reset in the closed position by the engagement of a lip 17 on the vessel with a protruding surface 16 on the flaps.
Patent GB-1147410-A (GB)
Title: Improvements in or relating to valves
Inventor: KNOTT ARTHUR
IPC: F16K1/20
Filed: 1967-10-21
Abstract: 1,147,410. Pipe stoppers. ROLLS-ROYCE Ltd. 21 Oct., 1967, No. 47981/67. Heading F2P. A stopper 18, of the kind adapted to seal the end of a conduit 12 which terminates in a chamber 15 in which high pressure and/or temperature conditions exist whilst permitting a probe on the like to be inserted into the chamber, comprises a body 10 which encloses the chamber 15 and in which is pivotally mounted the stopper 18 having two extreme positions in the first of which it completely seals the conduit 12 and in the second of which it leaves the conduit completely unobstructed, the stopper being urged by resilient means into the first position. The stopper 18 has a head 20 to fit a spherical seating around the lower end of the conduit 12 and is of cylindrical shape for rotation in a correspondingly shaped chamber 15. A torsion spring 21, heated alongside the stopper 18, urges the latter into its conduit closing position. The stopper has a U-shaped recess which receives the lower end of the conduit 12, the lower end of the body 10 being screw-threaded for mounting in the casing of a gas turbine engine.
Patent GB-1526963-A (GB)
Title: Exhaust systems for internal combustion engines
IPC: F01N13/14
Filed: 1975-11-21
Abstract: 1526963 Exhaust system for IC engine  FUJI HEAVY INDUSTRIES Ltd 21 Nov 1975 [26 Nov 1974 (2)] 47997/75 Heading F1B [Also in Divisions F2 and F4] A heat-insulated exhaust pipe has a duct 1 surrounded by insulation 8 contained within a cover 9, the cover 9 being fixed at one end to the duct 1 e.g. by welding and being slidable with respect to the duct 1 (e.g. having a sliding collar 14) at the other end to accommodate thermal expansion. The duct 1 may be connected to a muffler (not shown) by a flange 17 with two concentric stiffening pipes 15, 16. The cover 9 can be of two half-shells 9a, 9b welded together (see Fig. 3), the upper half 9a having a downward projection 9c or having an edging strip 9d to prevent rainwater entering. The pipe may be attached to a vehicle by a resiliently deformable bracket (not shown).
Patent GB-1100028-A (GB)
Title: Improvements in or relating to height finding radars
Inventor: RAINBIRD DONALD BRUCE
IPC: G01S1/02
Filed: 1963-12-09
Abstract: 1,100,028. Measuring angular displacement electrically. MARCONI CO. Ltd. Sept.16, 1964 [Dec. 9, 1963], No.48451/63. Heading G1N. The angular elevation of a radar scanning aerial 1, driven by a motor 4, is measured by the rotor winding 7A of a resolver 7 whose A. C. - energized stator winding 7B is automatically maintained vertical by a servolink including a rotary pick-up 16 (e.g. an E-type transformer). One movable part 16B (e.g. the core of the transformer) is linked to a pendulum 17 to define the vertical. Deviation from the vertical of the other part 16A carrying the windings produces an error signal which is amplified at 18 to energize a motor 11, mechanically coupled to windings 16A and winding 7B and restores these parts to the vertical.
Patent GB-1027010-A (GB)
Title: Improvements in or relating to railroad rails
IPC: B21K9/00
Filed: 1962-12-27
Abstract: 1,027,010. Reworking worn rails. K. GERLACH, and H. GERLACH. Dec. 27, 1962 [Dec. 27, 1961], No. 48689/62. Heading B3V. In a method of reconditioning railroad rails, worn rails are welded to worn or new rails to form a continuous track in a butt welding machine a. The weld beads are removed in a machine b having a reciprocating slide 3, and the rail is heated by burners 4 before reprofiling by a high speed hammer d (Fig. 1a, not shown). After reheating at c<SP>1</SP> and quenching at e in the region of the rail head, the track is straightened by rollers 7. Quenching of the rail head allows heat to flow from the base of the rail back to the rail head to produce a tempering operation.
Patent GB-1085409-A (GB)
Title: Improvements in handle straps for knot tying devices
Inventor: SMITH CHARLES ROLAND
IPC: D03J3/00
Filed: 1964-12-03
Abstract: 1,085,409. Straps. WILOT MELLOR BROMLEY Ltd. Feb. 25, 1966 [Dec. 3, 1964], No. 49141/64. Heading A3V. [Also in Division E2] A strap 1 for supporting a knot-tying device on the hand includes an integral or attached pocket 8 for receiving the handle of the device and a felt lining strip 3 detachably secured to the strap, for ready replacement, by means of complementary strips of filamentary hooks and loops. The securing strips may be stitched or stuck to the strap or lining strip.
Patent GB-1021968-A (GB)
Title: Liquid applicator
Inventor: ANDREWS MAURICE
IPC: A45D34/04
Filed: 1964-12-04
Abstract: 1,021,968. Brushes. MINI CLEANS Ltd. Dec. 4, 1964, No. 49412/64. Heading A4K. A reservoir brush comprises a head portion 4 and a resilient-walled liquid-containing hollow body portion 1. The head portion 4 contains a nylon brush 15 secured by a spring wire clip 16, and a stainless steel wool filter 9, between which is formed a constricted neck 11 which prevents liquid flowing therethrough unless it is forced under pressure. The liquid may be contained in a thin-walled sealed glass phial 3 which is broken by deforming the resilient wall to release the liquid.
Patent GB-1300221-A (GB)
Title: Artificial stone elements-a method of manufacturing same
Inventor: MORRISON PHILIP HENRY
IPC: C04B26/02
Filed: 1968-10-18
Abstract: 1300221 Artificial stone P H MORRISON W URQUHART and D J McAULEY 19 Jan 1970 [18 Oct 1968] 49502/68 Heading C1H Artificial stone elements are obtained by thermally bonding a mineral filler with at least 10% of a thermoplastic resin both being of similar particle size. Wire, mesh, fibre or fabric reinforcements are optional. The upper surface can have a pattern and the under surface lettering derived from the mould. Specified thermoplasts are P.V.C. polyamide, polyethylene terephthalate, and polypropylene. A filler, e.g. sand, glass, diatomaceous earth, flint, shale, mica, granite, schists, basalt asbestos, carbon, brick dust, metal oxides, NaHCO 3 , metal powder or wood, can be dusted in the mould before the mixture to give a rough undersurface.
Patent GB-1396546-A (GB)
Title: Double-row field forage harvester
IPC: A01D43/08
Filed: 1972-10-27
Abstract: 1396546 A two row forage harvester MASCHINENFABRIK FAHR AG 27 Oct 1972 [4 Nov 1971] 49626/72 Heading A1F [Also in Division A4] A two row forage harvester, especially for maize, has two juxtaposed flywheel type cutter discs 3 carrying cutting blades 5 and chopping blades 6 and a blower 14 positioned between the discs from whence chopped material is discharged through an upwardly extending pipe 19. Forwardly extending feed devices 7, incorporating feeding screws or belts, deliver standing crop to the discs 3 whose blades 5 cut the crop and blades 6 cooperate with stationary counter blades 9 to chop it. The discs 3 are mounted on vertical axes 4 and are driven in opposite directions by a drive shaft 12 which also carries the blower 14 comprising a disc wheel 15 having radial blades 16. The chopped material is delivered, due to centrifugal forces, to the lower part of a blower housing 17 via openings 18.
Patent GB-985129-A (GB)
Title: A machining device
IPC: B23G5/12
Filed: 1963-12-16
Abstract: 985,129. Screwing machine details. GEORG FISCHER A.G. Dec. 16, 1963 [Dec. 21, 1962], No. 49652/63. Heading B3N. A screw thread cutting device comprises a self-opening chuck 2 having thread-cutting means 40 displaceable radially, a rotatable chuck spindle 9 axially displaceable by a lever 25, a part of the chuck arranged to displace the thread-cutting means to the operative position, and braking means arranged to co-operate with the part to cause the displacement when the lever is moved to displace the spindle away from the work. A shaft 4 drives chuck spindle 9 through teeth 8 and a gear 16, the spindle being axially movable in a bearing 10. A sleeve 13 is rotatable with spindle 9 but relative axial movement is provided by a key 12. A second sleeve 50 is fixed to sleeve 13, and a grooved sleeve 56 is rotatable on sleeve 50. A camming sleeve 27 is axially fixed but rotatable on an enlarged end 2 of spindle 9. Sleeve 27 has an annual groove 28 which co-operates with a fixed braking annulus or part annulus 29, and a stepped tube chamfering tool 52 is carried by the spindle. A control shaft 20 is mounted in bearings.21, 22 and carries a fork 23 having rollers 24 mounted thereon. The rollers run in an annular groove 19 in the hub 18 of gearwheel 16. A lever 25 is secured to the shaft and the latter carries a pre-tensioned torsion spring 41. In operation the workpiece is moved into engagement with thread-cutters 40 which are in their closed positions. Lever 25 is moved from the full line position, Fig. 1, towards the left and the screw thread is completed. At this point a pawl 33 releases sleeve 56 and spring 63 rotates sleeve 27 to move cutters 40 outwardly to disengage the work. Spring 41 moves spindle 9 to the right, Fig. 1 and members 27, 29 are engaged, but a spring 41 is relatively weak, the shaft 9 is not stopped. Lever 25 is again moved to the left, Fig. 1, and the work is chamfered by tool 52. Lever 25 is again moved and pressure is exerted on the lever to engage members 27, 29 so that sleeve 27 is braked and the cutters 40 are closed. Sleeve 50 is rotated relative to sleeve 56 so that pawl 33 enters the groove in sleeve 56 and spring 63 is tensioned. In a modification, spring 41 is omitted. Specification 869,354 is referred to.
Patent GB-1169963-A (GB)
Title: Improvements in or relating to Amplitude Limiters
IPC: H03G11/02
Filed: 1967-11-02
Abstract: 1,169,963. Zener diode limiting circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 2 Nov., 1967 [16 Nov., 1966], No. 49934/67. Heading H3T. A limiter comprises a Zener diode 3 fed with the signal to be limited via a capacitor 2. When the amplitude exceeds where Vz= Zener voltage and V D  = threshold voltage, capacitor 2 becomes charged and applies to the diode a bias voltage = so that the limiting is symmetrical.
Patent GB-1278670-A (GB)
Title: Direction finding aerial system
Inventor: CALLENDAR MAX VICTOR
IPC: G01S3/58
Filed: 1969-10-10
Abstract: 1278670 Radio direction-finding PYE Ltd 30 Sept 1970 [10 Oct 1969] 49955/69 Heading H4D In a radio direction-finding aerial system two spaced-apart aerials 10, 12, Fig. 1, are connected by respective feeders 18, 20 to a receiver 22, which algebraically subtracts the voltages induced in said aerials by an incoming signal from, for example, a transmitter in a direction 16. The aerials 10, 12 are symmetrically mounted about an axis of rotation 14 and the feeders 18, 20 are similar except that a small extra length 24 is inserted in the former. A minimum output from the receiver 22 is obtained at two angular positions of the aerials, which are not at 180 degrees to each other, and which correspond to values 0 degrees (aerials shown as 10<SP>1</SP>, 12<SP>1</SP>) and 180-# degrees (aerials shown as 10<SP>11</SP>, 12<SP>11</SP>). In these, the time taken by the incoming signal to traverse the additional distance in the direction 16 to the aerial 12 corresponds to the delay introduced by the extra length 24 in the feeder to the aerial 10. The sense of the bearing may thus be determined. An indicator 25 of the angular position of the aerials may be provided with a false zero to allow for the angle #. The aerials may be monopoles or dipoles, the feeders may be of the coaxial or twin-wire type, and instead of an extra length of feeder 24, a reactive impedance may be inserted in the feeder 18 (Fig. 3, not shown). In another embodiment, two monopoles are continuously rotated and are associated with a synchronized rotating-scan cathoderay tube. A bright up circuit, which may be of the kind described in Specification 834,794, is employed to show the radial trace only when a bearing is being indicated (Fig. 4, not shown). A small length of twin wire feeder is inserted in one of the two coaxial feeders from the monopoles, and consists of two conductors 132, 134, Fig. 5, which are mounted on movable supports 136, 138. The phase change which is introduced may be adjusted by altering the spacing between the two conductors. Other types of aerials, such as rotatable Adcock aerials, or spaced tuned loop aerials, may be used.
Patent GB-1471880-A (GB)
Title: Furnace atmosphere for the heat treatment of ferrous metal
IPC: C23C8/32
Filed: 1973-10-26
Abstract: 1471880 Furnace atmospheres AIR PRODUCTS & CHEMICALS Inc 29 Oct 1974 [26 Oct 1973] 49963/73 Heading F4B [Also in Division C7] In the heat-treatment of ferrous metal, the metal is charged to a furnace which is then heated to the desired temperature and supplied with a gas mixture to produce an atmosphere having the required carbon potential, the gas mixture being of (a) an oxygen bearing medium (e.g. O 2 , air) and/or one or more compounds of oxygen with H and/or C (e.g. CO 2 , H 2 O), (b) a gaseous hydrocarbon, e.g. CH 4 , natural gas, and (c) an inert gas carrier, e.g. Ar, He, N 2 , which is the predominant component, by volume, of the mixture. The mixture can be used in carburizing, decarburizing, hardening, or annealing, depending upon the relative proportions of the gases and the resulting carbon potentials, and also for carbonitriding, when NH 3  is added to the mixture. The heattreatment temperature is within the range 690-1150 C.
Patent GB-1085799-A (GB)
Title: Rotary electric motor or generator
IPC: H02K21/38
Filed: 1964-03-07
Abstract: 1,085,799. Dynamo-electric machines. GOLAY BUCHEL & CIE SOC. ANON. March 7, 1964 [Aug. 24, 1963], No. 50004/63. Heading H2A. A rotary electric motor or generator comprises a stator S having arranged on a circle an even number of field poles 1, 3, 5 sequentially of opposite polarity and of further poles 2, 4 rigid with the field poles and alternating therewith with a constant angular displacement between any two poles, and an unwound rotor R having distributed about its circumference facing the stator a plurality of magnetizable armature sections 6 ... 8 of a number equal to that of the stator pole pairs and each having a circumferential extent substantially equal to the arc between the centre lines of successive further poles so that it can provide flux paths linking simultaneously a further pole with both adjacent field poles the sections occupying substantially the entire circumferential extent of the rotor; the further poles have windings which in the case of a motor are energizing windings but in the case of a generator are induced windings in which magnetic flux reversal is effected by the armature sections alternately directing the field pole fluxes. As shown, the sections are segmental soft Fe sheets embedded in an A1 body 12, and there are two such rotors keyed to a common shaft, a fan 9 impelling an air stream between end plate openings 13, 14; the field poles are energized by either electrical windings or permanent magnets, and there are two stators S, either the rotors or the stators being mutually angularly shifted to eliminate inoperative periods. In an alternative embodiment, Figs. 3 and 4, the rotor is disposed radially outside the stator. As a generator, the machine produces a substantially rectangular voltage, possibly multiphase, the phase number and shift corresponding to the number of stators and their mutual displacement; a two-phase vehicle battery charger is envisaged, and the poles may have short-circuiting rings. As a motor, the further windings are periodically energized preferably through semi-conductors controlled, e.g. inductively, electromagnetically or photoelectrically, by a member rotating with the rotor; speed adjustment is by variation of field winding voltage or selection of energizing winding connections.
Patent GB-1401840-A (GB)
Title: Carpets and rugs
IPC: D05C17/02
Filed: 1972-10-30
Abstract: 1401840 Pile fabrics BRITISH ENKALON Ltd 30 Oct 1972 50017/72 Heading D1K A carpet or rug has a cut pile formed of tufts of plied yarn or of a number of yarns twisted together, the yarns being crimped, and the twist of the singles of which the plied or twisted yarns are composed being opposite to that of the plied yarn or of the yarns twisted together. A large proportion of the filaments in each tuft are interlaced to impart coherence to the separate tops of the tufts. The ply twist and twist of the singles may be both 50 to 250 turns per metre, for example 140 turns per metre, and the singles may be drawn, yarn of 1260 dtex. The pile height may be 8-80 mm, and the filaments of which the pile yarn is composed may be circular, or multilobal, for example trilobal in cross-section. The back of the carpet may be latexed. The pile yarn may be nylon.