baber/WOPTO huggingface dataset:
Patent GB-1246374-A (GB)
Title: Synchronization system for a time division communication system
Inventor: GOTO HIROKAZU
IPC: H04J3/06
Filed: 1969-10-22
Abstract: 1,246,374. Multiplex pulse signalling; automatic phase control. NIPPON ELECTRIC CO. Ltd. 22 Oct., 1969 [25 Oct., 1968], No. 51843/69. Headings H3A and H4L. A synchronization system for a plurality of stations in a time division multiplex system comprises at each station, means for detecting phase differences between incoming clock pulse signals and the local clock pulse signals, a counter for measuring the phase differences digitally, means for determining the differences between the measured phase differences and a preset reference phase and means for weighting and averaging the differences to control the insertion or deletion of pulses into or from the local clock pulse train. As shown in Fig. 3 incoming clock signals 53 to 56 are supplied to phase comparators 31 to 34 respectively and compared with the local clock pulses on line 57. The phase comparators may be bi-stable devices which are set by one of the inputs and reset by the other to produce duration modulated pulses which operate counters 35 to 38 receiving pulses from a clock pulse generator 39 to produce corresponding digital outputs. The outputs of the counters are stored at 40 to 43 respectively and compared at 44 to 47 with a digital reference phase value from a generator 48, circuits 44 to 47 producing signals indicating whether the measured phase is equal to, larger than, or smaller than the reference phase. These signals are supplied to a logic circuit 49 where they are treated in terms of " majority decision " certain stations being arranged to carry a larger weight in the decision. The judged result is applied to a control circuit 50 which inserts or removes pulses from the clock pulse train generated at 51 as required, the resulting sharp phase variations being removed in circuit 52 which may take the form of a phase controlled oscillator.
Patent GB-1276847-A (GB)
Title: Fluid heater
Inventor: KELLETT ERIC
IPC: F23R3/00
Filed: 1968-11-04
Abstract: 1276847 Tubular heat exchanger CAV Ltd 21 Oct 1969 [4 Nov 1968] 52076/68 Heading F4S [Also in Division F1] The invention relates to a fluid heater which comprises a gas turbine unit and two heat exchanger units in series flow in which the fluid is to be heated. The assembly shown comprises a shaft 13 on which are mounted a first compressor 12, a second compressor 14 and a turbine 15, the first compressor 12 supplying an air/fuel mixture to a burner disposed within combustion chamber 10, the burner being defined by the wall of a divergent member 11 and the wall of the combustion chamber. The second compressor 14 supplies dilution air through the divergent member into the combustion chamber. Gases from the chamber pass to the turbine 15 to drive it, the gases then passing through a spirally wound tube 24 of a heat exchanger 21, the gases then passing through a line 26 which passes through the outlet duct of the second compressor 14 whereby the dilution air is preheated; the gases finally discharge to atmosphere. A first heat exchanger 16 is disposed around the combustion chamber 10, and a fluid to be heated is passed from condenser 20 through line 17 by pump 19 through the heat exchanger 16. The fluid then passes through line 18 to the second heat exchanger 21, the fluid passing through a spirally wound tube 23 which is interengaged with the first tube 24. The heated fluid finally discharges through line 22 to a point of use. The spirally wound tube 23 increases in cross-sectional area in the direction of fluid flow therethrough, while the tube 24 decreases in area.
Patent GB-524349-A (GB)
Abstract: 524,349. Melamine. I. G. FARBENINDUSTRIE AKT.-GES. Jan. 27, 1939, Nos. 2941, 2942 and 2943. Convention dates, Jan. 29, 1938, June 22, 1938 and June 24, 1938. [Class 2 (iii)] Melamine is produced by acting with gaseous anhydrous ammonia at elevated pressure on dicyandiamide at temperatures above 100‹C., the ammonia under the elevated pressure being supplied from a container outside the reaction vessel containing the dicyandiamide. The ammonia may be introduced from the container charged with liquid ammonia by heating the container to the temperature corresponding to the desired vapour pressure or may be introduced by means of a pump, the pressure being maintained by means of an automatic release valve and the ammonia if in the liquid state being evaporated in a preheater. The process may be adapted for continuous manufacture by feeding the dicyandiamide by means of a travelling band or an endless screw through a heated tube. Examples describe continuous and discontinuous processes in which temperatures from 100-200‹C. and pressures of 25-40 atmos are employed and in which both methods of introducing ammonia are employed. The Specification as open to inspection under Sect. 91 includes an example in which dry dicyandiamide and melamine are heated with gaseous or liquid ammonia and xylene in an autoclave at 135‹C. and finally to 140-142‹C. yielding a crystal pulp of melamine in xylene. This subject-matter does not appear in the Specification as accepted. Specification 466,957 is referred to.
Patent GB-1134999-A (GB)
Title: Trunk pistons for internal combustion engines
IPC: F16J9/20
Filed: 1967-11-17
Abstract: 1,134,999. Pistons. SULZER BROS. Ltd. 17 Nov., 1967 [17 Nov., 1966], No. 52480/67. Heading F2T. An internal combustion engine piston comprises an oil control or scraper ring 4 located between the compression rings and the piston bearing surface 7 in a groove 3 closed to the interior of the piston, the bearing surface being formed with at least one lubrication groove 8 which merges into the groove 3 whereby oil scraped off the cylinder wall by the ring 4 is transferred to the bearing surface 7. Further lubrication grooves 9 and 10 in the surface 7 extend from the groove 8. Compression rings (not shown) are received in the top three grooves in the piston shown in Fig. 1. In a modification, Fig. 3, oil control rings 34, 36 are housed in the bottom two grooves 33, the groove containing the ring 34 communicating with the piston interior via bores 35. A spreader ring 41 is housed in a groove 40 at the bottom end of the piston 30 and grooves 42 in the surface 37 extend upwardly from the groove 40.
Patent GB-1149443-A (GB)
Title: A sampling device for obtaining a sample of a liquid flowing in a pipeline
Inventor: DRAPER NORMAN EDWARD
IPC: G01N1/20
Filed: 1967-11-20
Abstract: 1,149,443. Delivering measured quantities of liquid; sampling liquids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 20 Nov., 1967 [22 Nov., 1966], No. 52713/67. Heading B8N. A device for obtaining a sample of a liquid flowing in a pipe-line 10 comprises a rotatable valve member 40 mounted in a housing 20 and provided with an inlet port 35 adapted to align, in one position of the valve member, with correspondingly-shaped port 35 in the housing and to be brought out of alignment in a second position of the valve member by an actuating means 45, 60, 62, 71 and a discharge means arranged, when the valve member is in the second position, to force a trapped sample of liquid from the valve member through an outlet 33. The actuating means includes a piston-rod 60 having a shaped slot 61, 62, the valve member being coupled to the slot via a pin 45. A piston 71 is mounted on the rod so that when compressed air is fed through an inlet 77, the rod moves to rotate the valve via the inclined slot portion 62 so as to trap a sample of liquid within the valve member. Continued movement of the piston-rod then forces the trapped liquid through the outlet 33. In a modification, Fig. 3 (not shown), the pin-and-slot rotating device 62, 45 is replaced by a crank-lever (95) connected to an end-piece (81) secured to the valve member, the crank being actuated by a compressed-air actuated ram.
Patent GB-1517769-A (GB)
Title: Nozzle member for a liquid jet cutting apparatus
IPC: E21B7/18
Filed: 1975-12-24
Abstract: 1517769 Nozzles BRITISH HYDROMECHANICS RESEARCH ASSOCIATION 9 Dec 1976 [24 Dec 1975 15 June 1976] 52891/75 and 24751/76 Heading B2F  A nozzle member 10, Fig. 1, for use in the formation of high velocity liquid jets in liquid jet cutting apparatus comprises a piece of artificial sapphire with an internally polished aperture of circular cross-section, said aperture having a smoothly curved convergent inlet portion 12, an intermediate portion 13 extending from the inlet portion and having a uniform diameter d and a length of 0.25d to 5d, and a divergently bevelled outlet portion 14. Fig. 3 shows a re-usable mounting for such a nozzle member, said mounting comprising two body members 21, 31 held together by screws 35, 36 the lower member 31 providing a step against which the nozzle member 10 is held by a sleeve 22 and a retaining screw 40, the latter being screwed into a threaded bore in the upper member 21. The upper member 21 has a convergent inlet 18A and the lower member 31 has a divergent outlet 6A for the high velocity liquid jet. The adjoining surfaces 37, 38 of the members 21, 31 can be lapped and polished to provide a good seal or a sealing washer (39), Fig. 4 (not shown) may be interposed between them. In Fig. 5 (not shown) the nozzle member 10 is held against a step in the bore of the lower member 31 by a sleeve (22A) having a radial bleed vent (34); the nozzle member is surrounded by a rubber O-ring (42) and a further O-ring (41) surrounds the upper end of the sleeve (22A) and bears against the adjacent surface of the upper member 21. Fig. 2 (not shown) depicts a nozzle assembly in which the reusable mounting (18) is located in a cupshaped holder (16) having an axial outlet aperture (6) and a radial vent (7) and the tapered end (15A) of a water pipe is held against the inlet 18A of the mounting by means of a gland nut (17) and a screwthreaded collar (24) mounted on the water pipe and disposed within the gland nut.
Patent GB-1322288-A (GB)
Title: Two-stage injection moulding method and apparatus for making  rubber-soled footwear
IPC: B29D35/08
Filed: 1971-11-19
Abstract: 1322288 Moulding rubber soles UNIROYAL INC 19 Nov 1971 [23 Nov 1970] 53825/71 Heading A3B [Also in Division B5] Injection moulding apparatus for forming a rubber midsole (60, Fig. 4-6) against a lasted upper 22 under a first pressure and for form ing a rubber outersole (68, Fig. 6) against the midsole under a second higher pressure includes a mould defined by the lasted upper 22, a pair of movable sidewalls 12 and a sole plate 24 reciprocated by a fluidically operated piston 34. To form the midsole (60), rubber is injected from a gun 48 through a port 14 into the mould and the sole plate 24 is advanced under the first pressure to spread the rubber over the upper 22. The midsole is incompletely cured and the plate 24 is retracted. Rubber of a lower modulus is then fed from a gun 54 through a port 16 into the mould and the plate 24 is advanced under the second higher pressure to spread the rubber of lower modulus over the midsole to form an outer sole which together with the midsole is subsequently fully cured using electrical heating elements 71. The second higher pressure may be retained throughout the curing cycle or may be decreased after a predetermined time to the first pressure which is then maintained for the remainder of the cycle. The movement of the plate 24 is controlled by switches 42, 42a actuated by the guns 48, 54 respectively. The operation of the fluidic circuit which includes a low-pressure conduit 205a, a high-pressure conduit 204a, a timer 203, a switching valve 200 and venting and connecting valves 38, 40 is described. Twelve moulds may be uniformly distributed around a turntable.
Patent GB-1166660-A (GB)
Title: Polyurethane Adhesive
IPC: C09J175/06
Filed: 1966-12-01
Abstract: 1,166,660. Boots &c. E. I. DU PONT DE NEMOURS & CO. 1 Dec., 1966 [2 Dec., 1965], No. 53853/66. Heading A3B. [Also in Division C3] A hot melt adhesive for uniting shoe uppers to shoe soles is a polyurethane obtained by reacting a diisocyanate with a polyester obtained by reacting (a) an epoxy compound of formula where R is a C 1-26  alkyl group and (b) certain dicarboxylic acids (see Division C3). In examples the polyurethane is heated to 150-160C. to melt it and applied to the edges of a synthetic rubber sole - the sole is then placed on a matching prewarmed leather upper and the unit clamped at a ,pressure of 60-80 p.s.i. for 20-30 seconds.  Reference has been directed by the Comptroller to Specification 1,001,293.
Patent GB-1428410-A (GB)
Title: Method of examining photographic sheet material
IPC: G03C1/74
Filed: 1972-11-22
Abstract: 1428410 Inspecting photographic material KODAK Ltd 16 Nov 1973 [22 Nov 1972] 53876/72 Heading G2X Apparatus for inspecting light-sensitive sheet 1 material comprises an inspection table 2 which forms part of a cylinder of elliptic section and an elongate source of safelighting along a focal line of the ellipse. Preferably the elongate source is a diffusing screen 4 and a safelight filter 5 backed by a strip-light 3, a shield 7 being provided to prevent the source being seen at a viewing position on or near the other focal line.
Patent GB-1409935-A (GB)
Title: Tetracyclic compounds and salts thereof and a method of  preparing same
IPC: C07D487/16
Filed: 1973-11-22
Abstract: 1409935 # - Carboline - derived tetracyclic compounds VSESOJUZNY NAUCHNOISSLEDOVATELSKY KHIMIKO - FARMATSEVTICHESKY INSTITUT IMENI S ORDZHONIKIDZE 22 Nov 1973 54150/73 Heading C2C [Also in Division A5] The invention comprises compounds of Formula I and their acid addition salts, wherein R is H, alkyl or alkoxy, R<SP>1</SP> is alkyl and m, n are each 2 or 3; and a process for making them by cyclizing the lactams (III) with POCl 3  and decomposing the thus formed salts (IV) with alkali or an alkanol.
Patent GB-1150645-A (GB)
Title: Sealing Device
Inventor: GULLICK DENZIL SIDNEY
IPC: F16J15/56
Filed: 1965-12-30
Abstract: 1,150,645. Seals; piston packing. DOWTY ROTOL Ltd. 22 Dec., 1966 [30 Dec., 1965], No. 55285/65. Headings F2B and F2T. A sealing ring 23 of P.T.F.E. is urged into sealing engagement with a piston member 13 (e.g. of a liquid spring) by a rubber loading ring 26 which is compressed by fluid pressure acting through a metal ring 18, a spring 19 being provided for exerting initial sealing pressure. As shown, a second sealing ring 24 is also provided together with an anti-extrusion ring 25 of sintered metal. A metal backing ring 16 closes the end of the recess housing the sealing rings and the metal ring 18 has a conical end face. If desired, the sealing rings may be carried by a piston.
Patent GB-1330200-A (GB)
Title: Fuel supply devices for ic engines
IPC: F02M71/04
Filed: 1971-12-01
Abstract: 1330200 Spray carburetters P AUGUST 1 Dec 1971 55784/71 Heading F1B A fuel supply device for I. C. engines in which fuel is supplied through a jet or jets controlled by a needle valve or valves characterized in that the said jet or jets are in an injection nozzle arranged in an induction manifold and further ports are provided which come into operation as the fuel feed increases so that when idling with low fuel pressure the flow through the jet 12 is diminished and the jet(s) open with increasing fuel pressure, the further ports coming into operation as the fuel pressure is raised to increase the engine speed. Fuel from an engine driven pump is supplied to a nozzle chamber 21 and acts on a piston 15 to which is attached a needle 14, withdrawing the needle from a jet 12. The fuel which issues from the jet strikes a concave baffle plate 16 and breaks up into a fine spray, the droplets of which are entrained in the combustion air and carried to the cylinders. Condensation on the walls of the inlet manifold is thus minimised. As the engine speed increases more fuel is supplied by the pump, the pressure in chamber 21 increases and piston 15 rises further to uncover ports 13. Fuel issuing from these points strike baffle plates 22 and is broken up into spray. The flow of air into the induction pipe 1 is controlled by a valve consisting of two over lapping sliding plates 19a and 19b. Each plate has a semi-circular notch 20, the notches co-operating to form a roughly oval hole. At idling speed, the air is led to an annular cavity 3 surrounding the jet. As the valve is opened further, air flows through a tube 18 surrounding the nozzle chamber. At full throttle air also flows along the annular space between the tube 18 and the induction pipe.
Patent GB-1256360-A (GB)
Title: Method and composition for treating substrates, and articles so treated
IPC: D06M13/213
Filed: 1968-11-27
Abstract: 1,256,360. Aerosols. COLGATE PALMOLIVE CO. 27 Nov., 1968 [28 Nov., 1967], No. 56293/68. Heading C4X. [Also in Divisions C3 and D1] An aerosol composition comprises a fluorocarbon polymer, plasticizing agent therefor and water, the plasticizing agent being trichlorotrifluoroethane, hexafluoroxylene, trifluorotoluene, bis(trifluoromethyl) benzene, dimethyl formamide, tetrahydrofuran or a mixture of any two or more of these and the composition being pressurized and containing a liquefied normally gaseous propellant. In Example II the propellant is dichlorodifluoromethane.
Patent GB-1443986-A (GB)
Title: Containers
IPC: B65D3/10
Filed: 1973-12-07
Abstract: 1443986 Portable containers 7 Dec 1973 [3 Jan 1973] 56804/73 Heading B8D [Also in Divisions B3 and B5] A container holding liquid under pressure comprises a body portion 12 closed at one end by a metallic end closure 24, which has a peripheral channel defined by parallel leg portions 30 and 34 of straight cross-section bonded to the body by a heat-activated thermoplastics adhesive, comprising a polyterpene resin. The adhesive also comprises an ethylenevinyl-acetate terpolymer, a butadiene-styrene block copolymer, or a polyamide polymer, specific examples of mixes being given. The body may be formed from a helically-wound composite fibrous sheet or from metal or plastics. The body is provided with a vinyl coating 52 over a base epoxy coating or with a modified epoxy coating and the closure is provided with a modified epoxy coating 50.
Patent GB-1409430-A (GB)
Title: Lighting circuits
IPC: B60Q1/44
Filed: 1972-12-12
Abstract: 1409430 Road traffic signals on vehicles ROLLS-ROYCE MOTORS Ltd 12 Dec 1973 [12 Dec. 1972] 57307/72 Heading G4Q [Also in Division H3] A lighting circuit comprises a lamp-current sensing means controlling the bridging of a dimming impedance. As applied to brake (stop) lamps 1, 2 a dimming resistor 5 is connected in series with brake switch 3 and a resistor 4; the latter is bridged by a potentiometer 6 the wiper of which is connected to a transistor 7 between which and a transistor 8 is a relay coil 11. In operation closure of a vehicle lighting switch 21 energizes relay coil 22 to open contacts 26 and closure of brake switch 3 causes a voltage drop across resistor 4 sufficient to turn on transistor 7 thereby holding off transistor 8; as the initial surge voltage reduces transistor 7 turns off, transistor 8 is turned on, relay coil 11 is energized and dimming resistor 5 is effective. To obviate the "standing" voltage drop across resistor 4 a lighting switch 21 having change-over contacts is utilized in a modified circuit, Fig. 3 (not shown). It can be arranged that when fog lamps are on the brake lamps when on are always at highest intensity.
Patent GB-1184240-A (GB)
Title: Method and apparatus for Manufacturing Sausages and the like
Inventor: VIERVOLL ROALD
IPC: A22C11/10
Filed: 1967-12-19
Abstract: 1,184,240. Linking and twisting sausages. R. VIERVOLL. 19 Dec., 1967 [1 Aug., 1967], No. 57591/67. Heading A2B. In a method for linking and twisting a length of stuffed sausage casing by constricting it at predetermined spaced intervals to form link points and rotating the resulting lengths alternately in opposite directions, the casing is fed to a pair of parallel rollers, rotating in the same sense about their longitudinal axes, mounted on a member that rotates about an axis perpendicular to the longitudinal axes of the rollers, the rotation of the member firstly allowing a length of the stuffed casing to come into contact with one side of the pair of rollers and to be supported and rotated by the rollers in one sense, and secondly causing the casing to be gripped and bent at the ends of the rollers to form a link point and then causing the immediately following length of stuffed casing to be supported, on the other side of the pair of rollers and rotated in the opposite sense by the rollers. Fig. 1 shows one suitable apparatus, the rollers 30, 32 rotating in the direction of the arrows, and the assembly being rotatable about axis 24, the necking occurring in yokes 62, 64, the apparatus being operated by turning handle 25.
Patent GB-1421358-A (GB)
Title: Electric transducer
IPC: H04R21/02
Filed: 1973-12-14
Abstract: 1421358 Carbon microphones INTERNATIONAL STANDARD ELECTRIC CORP 14 Dec 1973 [15 Dec 1972] 58016/73 Heading H4J Carbon microphone has a granule chamber bounded by a movable electrode 12, and insulati ng member 19, and a fixed electrode 23, in which the fixed electrode extends over a part of the inner surface of the insulating member 19. As shown the insulating member 19 is held in a metal base plate 1 by a ring 20 turned into a groove 6 of the base plate and the fixed electrode is a gold plated bushing 23 riveted in the opening 22 of the insulating member 19 and an outer contact member (24) closes the opening and is turned behind shoulder 21 of the insulating member 19. The movable electrode 12 is suspended in the opening of the base plate 1 by a soft copper member 13, insulated from the granules by a silk disc 14. An annular metal damping member 9 with apertures 27 is mounted behind the aluminium diaphragm 11 separated therefrom by metal ring 10 which provides electrical conductivity to the base plate 1. A rubber diaphragm 16 seals the assembly from moisture.