baber/WOPTO huggingface dataset:
Patent GB-1426009-A (GB)
Title: Electronic device serving to supply a load with constant voltage pulses
IPC: F02P3/08
Filed: 1973-09-24
Abstract: 1426009 Ignition systems J-B PULZER 24 Sept 1973 [25 Sept 1972] 44608/73 Heading F1B [Also in Division H3] Spark-plug igniting voltage pulses are produced by discharging C1 into a load 4a and are kept constant in amplitude by using the oscillator T1-T2- 6, which charges C1, to charge also an auxiliary capacitor C2 whose voltage upon reaching a set value stops the oscillator. A feedback winding 6b on transformer 6 turns on Tl, T2, during positive half cycles and charges C2 during negative half cycles. The voltage on C2 eventually overcomes Zenor diode Z1 voltage and turns on T3 to inhibit the oscillator. Subsequent opening of an internal combustion engine-operated contact 3 causes a positive charging pulse in C4 which turns on a  thyristor T6. This discharges C2 into R7, turning on thyristor T7 so that Cl can discharge into the primary 4a of a spark-gap-driving transformer 4 through inductor L and R8 in parallel. Inductor L aids the extinguishing of T7. Turn-on of T6 also extinguishes T5 by way of C3, and permits the oscillator to restart. Spurious pulses at the input point B from the engine are prevented from triggering T6 while the oscillator is functioning by holding on T8 with the battery voltage via R13, T5 being off when oscillation is occurring.
Patent GB-1071272-A (GB)
Title: Improvements in or relating to cutting tools
Inventor: PINDER HAROLD WILLIAM
IPC: B23B27/16
Filed: 1962-11-27
Abstract: 1,071,272. Tool-holders. CINTRIDE Ltd. Nov. 27, 1963 [Nov. 27, 1962], No. 44740/62. Heading B3B. A cutting tool 20 comprises backing surfaces, forming are-entrant angle, for supporting a " throwaway " tip 23. An eccentric 26 in the cutter-aperture 24 clamps the square or triangular tip against the backing surfaces.
Patent GB-1485672-A (GB)
Title: Audio-visual apparatus
IPC: G03B31/06
Filed: 1975-10-29
Abstract: 1485672 Audio-visual apparatus KONISHIROKU PHOTO INDUSTRY CO Ltd 29 Oct 1975 44766/75 Heading G5R A transparency 1 carrying a magnetic recording area 3 is located by means of holes 14 engaging pins 13 on an illuminated face 5 and is recorded or played back by means of a magnetic head 11 moving either rectilinearly as shown or spirally, Figs. 5 and 6 (not shown). The recording area 3 may be pressed against the magnetic head 11 by a pressure plate 28, Fig. 4, hinged to the head mounting 1 la. As described, in the rectilinear layout the head 11 is driven to and fro by an electric motor (15), Fig. 3 (not shown), through a lead-screw 16 under the control of limit switches (18, 19) which also cause a switch (20) to effect change of track in a multi-track head 11 and to switch off at the end of the last track, or earlier in response to a recorded signal.
Patent GB-1045445-A (GB)
Title: Process for the preparation of aliphatic dinitriles
Filed: 1964-11-06
Abstract: Aliphatic dinitriles are made by heating an aliphatic amidino-carboxylic acid, in which the amidino group and the carboxylic acid group are separated by at least one carbon atom, at 260-320 DEG  C. in the presence of a dehydration catalyst. Suitable reactants have the formula HOOC-R-C(: NH)NH2, where R is an optionally substituted alkylene radical, and yield products of the formula NC-R-CN.  Suitable catalysts are those used in the dehydration of amides to nitriles, e.g. alumina, P2O5, phosphoric acid and its salts and mixtures of phosphoric and boric acids.  The water of reaction is preferably eliminated as it is formed, e.g. by distillation or by use of dehydrating agent.  It is preferred to effect the reaction in the presence of ammonia.  Solvents, e.g. anthracene, may be used. Examples relate to adiponitrile and 1,10-dicyanodecane.
Patent GB-1111116-A (GB)
Title: Improvements in elastic woven fabric
IPC: D03D15/56
Filed: 1966-10-12
Abstract: An elastic fabric contains core-spun yarns consisting of a spandex filament surrounded by dyed wool fibres, the twist multiple being at least 3 and the spandex consisting not more than 20% by weight.  The fabric may be one-way stretch, or may be two-way stretch with the same kind of yarns in both disections or with nylon stretch yarns in one direction.  The fabric is finished by scouring and heat setting in either order.  Scouring is effected at open width by crabbing at not more than 71 DEG C and at pH1 to 8 during which the fabric may be kept taut or allowed to relax in the elastic disection (but not enough to become bulked). Heat setting under tension is effected at 160-200 DEG C for 30-90 secs., the fabric being cooled below 70 DEG C before removing the tension.  Treatment with thermosetting or thermoplastic resin may be applied after crabbing.
Patent GB-986202-A (GB)
Title: Process for preparing 4,4-diisoamyloxythiocarbanilide and product obtained
IPC: C07C335/18
Filed: 1961-12-20
Abstract: 4,41-Diisoamyloxythiocarbanilide is prepared by directly condensing p-isoamyloxyaniline with carbon disulphide for 2 hours under reflux in the absence of any solvent or diluent, then adding an alkali or alkaline-earth metal hydroxide catalyst and continuing heating for one hour.
Patent GB-457466-A (GB)
Abstract: 457,466. Two-stroke engines. BERENT, J., 233, Market Street, Lockport, New York, U.S.A.-(Assignee of Augustine, H. B. ; 158, Lincoln Boulevard, Kenmore, New York, U.S.A.) May 28, 1935, No. 15475. Convention date, June 14, 1934. [Class 7 (ii)] In a multicylinder engine, the cylinders have valve-controlled exhaust ports 17, and pistoncontrolled inlet ports 22, charged in succession by a pump piston 25 timed to make a complete charging stroke during each opening period of the ports 22 ; the charging air is delivered at, or slightly above, atmospheric pressure, the swept-volume of the pump piston being slightly greater than that of the power pistons to supercharge the cylinders by early closure of the exhaust valves. A two-cylinder engine is shown, the pump piston being connected to a shaft driven at twice crank-shaft speed. The suction and delivery pump valves are constituted by a rotary valve and the piston control of the ports 22, which are preferably tangential to the cylinders.
Patent GB-1207971-A (GB)
Title: Packages of laminated film
IPC: B65D75/32
Filed: 1967-10-09
Abstract: 1,207,971. Plastics film laminates. OSCAR MAYER & CO. Inc. 9 Oct., 1967 [31 Jan., 1967], No. 46097/67. Heading B5N. [Also in Division B8] Laminates for packaging are made by extruding polyvinylidene chloride film, combining with chlorinated polyethylene film and crystallizing the polyvinylidene chloride film. As shown films 22, 23 are extruded into a bath of water 26 maintained at 35-100‹ F. to cause supercooling, of the polyvinylidene chloride film which facilitates the bonding by laminating rollers 29. The laminate is then formed into a package at 32 and heated to 150‹ F. at 33 or stored at room temperature to crystallize the polyvinylidene chloride film, the chlorinated polyethylene film remaining amorphous to provide peelable and reclosable seals in packages. The packageforming step may be omitted and the laminate rolled up. Alternatively, (Fig. 3, not shown) the films may be pressed together after the polyvinylidene chloride film only has been supercooled in the bath 26.  The chlorinated polyethylene film may contain up to 60 wt. per cent chlorine, and the polyvinylidene chloride film may be a copolymer with vinyl chloride.
Patent GB-1219897-A (GB)
Title: Improvements relating to roof supports for mine workings
Inventor: GROETSCHEL KARL MARIA
IPC: E21D23/04
Filed: 1967-10-10
Abstract: 1,219,897. Advancing mine roof supports. K. M.' GROETSCHEL. 10 Oct., 1968 [10 Oct., 1967], No. 46258/67. Addition to 1,168,796. Heading E1P.  In a mine roof support comprising an outer frame and an inner frame 13 adapted to be selectively advanced by a jack the superstructure 15 of the latter is provided with a movable mat 38 to give protection over the manway 33 when the inner frame is: advanced. The support is also provided with fixed shields 35a, 35b and a flushing shield 36. The mat 38 is in the form of steel plates articulated together or consists of a rubber sheet reinforced by one or more layers of canvas. The sheet may be wound on a roller or coiled over a series of rollers and tensioned by spring means or weights as appropriate, see Figs. 4, 5 and 6, (not shown). Specifications 1,168,796, 1,168,792, 1,171,944 and 1,198,507 are referred to.
Patent GB-1160128-A (GB)
Title: Barrier for Protecting Substances or Material from Attack by Termites
Inventor: IONIDES MICHAEL GEORGE
IPC: A01M1/20
Filed: 1966-10-17
Abstract: 1,160,128. Anti-termite barrier. M. G. IONIDES. 12 Jan., 1968 [17 Oct., 1966], No. 46322/66. Heading A5E. A barrier for protecting substances or materials from attack by termites comprises two sheets of water-impervious material of substantially the same dimensions, the edges of which lie adjacent and are united to form a sealed thin envelope, with a layer of insecticide lying within the envelope and substantially evenly distributed throughout the area enclosed by the sheets. The insecticide may be in the form of a solution or emulsion, or may be attached to the water-impervious material by an adhesive, or paper or cardboard may be impregnated with the insecticide. Suitable insecticides are B.H.C. and dieldrin.
Patent GB-1515935-A (GB)
Title: Tubing for use in solar heating systems
IPC: F24S10/70
Filed: 1975-11-25
Abstract: 1515935 Translucent plastics tube R S WALDE 25 Feb 1977 [25 Nov 1975] 46549/75 Heading F2P [Also in Division F4] Tubing for use in solar heating systems comprises spaced inner and outer tubes 1, 2, at least part of the outer tube being translucent. As shown, the inner and outer tubes are flexible and spaced by webs 3. The inner tube is formed of black matt PVC which may be impregnated with conductive metallic dust, e.g. aluminium or copper, or may be reinforced with spirally wound conductive metal wire or ribbon. The outer tube is formed of translucent PVC. The tubing may be extruded. The outer tube may have a lens or series of lenses formed on its surface, Figs. 2, 3 (not shown).
Patent GB-1122518-A (GB)
Title: Improvements in air separation device and liquid delivery system incorporating same
Inventor: KRONK RICHARD MICHAEL
IPC: B01D19/00
Filed: 1966-10-18
Abstract: 1,122,518. Centrifugal separators. GENERAL ELECTRIC CO. 18 Oct., 1966 [16 Feb., 1966], No. 46556/66. Heading B2P. [Also in Division F2] In an aircraft engine lubrication system capable of operation at varying attitudes and comprising a deaerating device and a sump tank 10, Fig. 1, having an inlet 16, Fig. 4, for connection with a conduit 20 for aerated oil returned from the engine and an outlet 42 for connection with a pressurizing pump for the supply of deaerated oil to the engine, the deaerating device comprises a tube 25, 32 extending from the top of the tank to a point adjacent its bottom and connected at its upper end to the tank inlet 16 by means of a tangential passageway 22, and a vortex generator 26 provided in the upper portion 25 of the tube to impart a swirling action to the aerated oil whereby a vortex is formed within the portion 32 of the tube to provide deaerated oil which is discharged from the tube into the tank, e.g. through openings 36, the separated air being vented from the tube 25, 32 through a central tube 35. The vortex generator 26 consists of one or more helical blades 30 mounted on a conical member 28 secured against a flange 39 on the tube 35 by a nut 37. Make-up oil may be supplied to the tank via an opening normally sealed by means of a hand-knob 49. A passageway 50, 52 Fig. 5, is provided between the upper portion of the tank and the venting tube 35 to prevent excessive pressure variations in the tank due to changes in the oil level and to provide a pressure force acting on the oil surface for minimizing the escape of air from the vortex into the tank. A ball check valve 54 prevents escape of oil from the passage 50 upon inversion of the tank, e.g. during aircraft roll. In a modification, Fig. 6, the aerated oil is supplied to the deaerator 79 by means of a jet pump 72 which comprises a downwardly extruding siphon tube 74 for supplying additional oil to the deaerator. The deaerator has a jet nozzle outlet 86 directed to the tank outlet 88 for deaerated oil.
Patent GB-1482784-A (GB)
Title: Printed circuit boards
IPC: H01R12/51
Filed: 1974-10-28
Abstract: 1482784 Printed circuits MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 28 Oct 1974 [26 Oct 1973 29 Oct 1973] 46567/74 Heading H1R A printed circuit board 10 (Fig. 1) of material including synthetic resin has conductors 11, 12 in mutually displaced planes, e.g. upper and lower surfaces of the board, and further conductor 13 disposed in a multilayer board. To interconnect the three conductors a hole 14 is formed in the board and a conductive layer 15 applied to cover the walls and the adjacent surface at 15a, 15b to contact conductors 11, 12. The hole is filled with insulant resin 16 which covers surface points 15a, 15b and the adjacent conductors, and the resin is heat cured. A discrete component 17, e.g. resistor or capacitor, is mounted by lead wires in holes 20, 21 of the board for connection to conductors 11, 12 and 22, 23 respectively; a conductive layer 24, 25 being formed on the walls of holes 20, 21 to which the lead wires are soldered at 26, 27. Alternatively, two holes may separately intersect conductors 11, 12 of which one receives a lead wire which is soldered, whilst the other receives only the conductive layer and is filled with resin to maintain connection between conductors 11, 12. The conductive layers may be formed by electroless or electroplating with copper, nickel, or silver, or coating with a conductive, e.g. silver paint. A silver-plated layer may be overplated with copper or nickel and underlain and/ or overlain by an inhibited resin; the inhibitor being: e.g. diethylamine, triethylamine, or azole compounds; to prevent silver migration. The resin may be a thermosetting epoxy, misaturated polyester, or polybutadiene resin, or alternatively melamine, alkyd, phenol or polyurethane resin. The hole filling resins may be thermosetting phenolic epoxide, silicone or polyester resins; or thermoplastic polyimide, polyethylene, polyfluoroethylene, or laminated epoxy resins, and the insulant board may be a paper laminate containing epoxy or phenol denatured epoxy resins. Halogenide or phosphorus flame retardants, and fillers such as talc, silica, antimony trioxide, may be added.
Patent GB-1489578-A (GB)
Title: Check valve
IPC: F16K15/03
Filed: 1975-01-06
Abstract: 1489578 Valves IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 6 Jan 1975 [5 Oct 1973] 46583/73 Heading F2V In a check valve for a gas main a closure member 52 is pivoted about an axis inclined from the vertical in two planes mutually perpendicular so that it has a tendency to close even when opened fully and aligned with the valve passage. The closure member is carried by a pivoted arm 74 and the pivot is mounted on a seat member 50. The seat/closure unit is mounted in the valve housing by a spigot 54 and socket 46 arrangement. The unit is retained by bolts 64 engaging in bores 62 which intercept the spigot to form tangential grooves 58 on the surface thereof.
Patent GB-1524055-A (GB)
Title: Adhesive polyamide compositions for metals
IPC: C09J5/06
Filed: 1975-11-12
Abstract: 1524055 Adhesive polyamide blends TOAGOSEI CHEMICAL INDUSTRY CO Ltd 12 Nov 1975 [12 Nov 1974 22 Nov 1974] 46664/75 Heading C3R A metal adhesive composition comprises (a) nylon 11 and (b) nylon 12 in a weight ratio 95 : 5 to 5 : 95, (c) 2 to 40% by wt. of (a) + (b) of nylon 6-12 and optionally 0À1 to 20 wt. per cent of (d) polyethylene and/or (e) an isomer. The nylons 11, 12 and 6-12 are desirably homopolymers but may contain up to 5, 5 and 10 wt. per cent respectively of comonomers. Such adhesives have good heat and water resistance and are useful as side-seam adhesives for tins.
Patent GB-1025578-A (GB)
Title: 1,1-dicyclohexyl-2-(2-piperidyl)ethane
IPC: C07D211/12
Filed: 1964-11-17
Abstract: The invention comprises 1,1-dicyclohexyl-2-(21-piperidyl)-ethane and acid addition salts thereof, and the preparation thereof by hydrogenating the corresponding piperidyl- or pyridylethylene or an acid addition salt thereof.  Pharmaceutical compositions having activity as coronary dilators contain as the active ingredient the above compound or an acid addition salt thereof.
Patent GB-1304080-A (GB)
IPC: A01N57/08
Filed: 1970-10-02
Abstract: 1304080 Phosphorus-containing pyridazino ester derivatives BAYER AG 2 Oct 1970 [7 Oct 1969] 47011/70 Heading C2P Novel compounds of the general formula in which R is C 1 -C 4  alkyl or a phenyl radical, R 1  is C 1 -C 4  alkyl and R 2  is C 1 -C 4  alkyl, C 1 -C 4  alkoxy, or phenyl are obtained by reacting (R 1 O)(R 2 )P(S)Hal wherein Hal is halogen with a 6-hydroxy pyridazine derivative of the formula in the presence of an acid acceptor or with an alkali metal, alkaline earth metal or ammonium salt of the said pyridazine derivative. The reaction may be carried out in the presence of a solvent or diluent, e.g. a hydrocarbon, chlorohydrocarbon, ether, ketone or nitrile. The products have insecticidal and acaricidal activity and may be used in admixture with a solid or liquid diluent or carrier and optionally surface-active agents to provide conventional pesticidal compositions.
Patent GB-969425-A (GB)
Title: Electrode structure for sewage handling equipment
IPC: E03F1/00
Filed: 1962-12-13
Abstract: 969,425. Automatic control systems. UNION TANK CAR CO. Dec. 13, 1962 [Jan. 29, 1962], No. 47102/62. Drawings to Specification. Heading G3R. [Also in Division F1] In a sewage ejector pump the compressed air admission pipe forms the level-detector electrode.
Patent GB-1224120-A (GB)
Title: Apparatus, comprising a motion picture camera and a tape recorder, having scene commencement indicating means
IPC: D06N3/04
Filed: 1969-09-26
Abstract: 1,224,120. Tape recorders; associated working with cine cameras. SYNCHRONEX CORP. 26 Sept., 1969 [6 Dec., 1968], No. 47502/69. Heading G5R. [Also in Divisions G2-G3] Sound synchronization marks are simultaneously made on the film in a cine camera and on the tape in an associated tape recorder for subsequent magnetic striping of the film, by means of a switch 12 on the camera which simultaneously actuates the camera motor 14 and the recorder motor, and also a thermal time delay 19 which, for a short period, energizes a lamp 20 within the camera to flash in synchronism with the film transport to expose the film, external light being excluded by a solenoid 27 acting to close exposure diaphragm 28. Flashing lamp 20 is controlled by rotary switch 21 through brush 21a, a second brush 22 providing switching pulses for an oscillator in the recorder to give destinctive pulsed signals on the tape. A flag 26 moves into the viewfinder while delay 19 is operative.
Patent GB-1112574-A (GB)
Title: Improvements relating to heat exchangers
Inventor: WHEELER WILLIAM HENRY
IPC: F28D9/00
Filed: 1963-12-03
Abstract: 1,112,574. Plate-type heat exchangers; air heating stoves. URQUHART'S (1926) Ltd. 24 Nov., 1964 [3 Dec., 1963], No. 47626/63. Heading F4S. A heat exchange unit comprises an assembly of corrugated metal sheets joined in pairs along their corrugations to form substantially tubular passages 104 in each pair, said pairs being spaced apart to form undulating passages at right angles to the tubular passages. Heat exchange units 118-121, of the above construction, are arranged to form a chamber 122 and are enclosed within an outer casing 123a-123d, the units being held in position by end plates 111, 112 formed with apertured spigots 116 locating the tubular passages. Plenum chambers are provided at two corners of the chamber so that fluid to be heated enters at one plenum chamber, divides and flows through the undulating passages of two or more units and leaves at the other plenum chamber, the transverse undulating passages of two units along adjoining sides of the chamber being aligned to form continuous passages around said adjoining sides. In use, combustion products from an oil-fired burner flow through the chamber 122 from a duct 140 at one end to a baffle 132 at the other, where they are deflected back through the tubular passages of the heat exchanger units, and are exhausted at the entry end. Air to be heated enters one plenum chamber through a duct 124, the heated air being taken off at duct 128. The apparatus may be provided with a heat insulating lining.
Patent GB-1248779-A (GB)
Title: Improvements in and relating to ignition systems
IPC: F02P19/02
Filed: 1968-10-10
Abstract: 1,248,779. Ignition in rotary piston engines. ROBERT BOSCH G.m.b.H. Oct.10, 1968 [Oct.11, 1967], No.47982/68. Heading F1B. When starting a rotary piston engine a glow plug or other heating element connected to a battery may be employed for ignition. Subsequently a coil ignition system is used.
Patent GB-1247760-A (GB)
Title: Process for the production of hydrogenated olefin sulfonates
Inventor: WOO GAR LOK
IPC: C07C309/04
Filed: 1969-10-02
Abstract: 1,247,760. Synthetic detergent bar. CHEVRON RESEARCH CO. 2 Oct., 1969 [3 Oct., 1968], No. 48500/69. Heading C5D. [Also in Division C2] A synthetic detergent bar is formed from a mixture of hydrogenated olefin sulphonates prepared by sulphonating a mixture of straightchain olefins having from 10 to 24 carbon atoms with SO 3  and subjecting the resulting sulphonated olefins to the following steps in any desired sequence: (a) treatment with an oxidizing agent in a quantity sufficient to provide at least 0À05 part of oxygen or an equivalent oxidizing amount of another oxidizing agent per 100 parts of sulphonated olefins, and hydrogenating the resulting treated sulphonated olefins until a major portion of the -C=C- bonds are saturated, (b) hydrolysis, and (c) neutralization.
Patent GB-1206397-A (GB)
Title: A machine tool having an indexable tool-carrying head
Inventor: LOVE DOUGLAS STANLEY
IPC: B23Q16/06
Filed: 1966-10-28
Abstract: 1,206,397. Turret lathes. NICKOLS AUTOMATICS (E.M.I.) Ltd. 12 Oct., 1967 [28 Oct., 1966], No. 48527/66. Headings B3B and B3T. A machine tool such as a turret lathe having an indexable tool carrying turret 12 mounted on a slide 14 movable towards and away from a workpiece includes a driving mechanism 10  mounted on the tool slide to effect rotary indexing of the turret and of a stop carrier which stops determine the extent of forward traverse of the turret slide, the driving mechanism effecting indexing of the turret through one or more index positions without the turret slide being returned to its forward position before completing the selected rotation of the turret, and a locking device in the form of a reciprocatable bar 16 to lock the turret in its required indexed position. In operation, the retraction of the slide 14 effects operation of a switch 48 by a member 50 which initiates the operation of the driving mechanism which is indicated by a lamp. The bar 16 is withdrawn by pneumatic means 20 and the turret indexed to the next required position without further movement of the slide, the bar being subsequently engaged to lock the turret in the new position. The driving mechanism is a pneumatically actuated device including piston and cylinder 30 and (46) (not shown in Fig. 1), a two-part clutch 32, 34, and a band brake 36, actuated by a pneumatic piston and cylinder 38, to effect retardation of the moving parts prior to the turret locking action. The sequence of operation is effected automatically by electrical actuation of the various pneumatic features.