baber/WOPTO huggingface dataset:
Patent GB-1427743-A (GB)
Title: Electronic ignition devices for the ignition of fuel gas in for example a cigarette lighter
IPC: F23Q3/00
Filed: 1973-01-22
Abstract: 1427743 Ignition devices BICOSA-SOC DE RECHERCHES 22 Jan 1973 [25 Jan 1972 12 April 1972 7 July 1972 11 Dec 1972] Divided out of 1427741 42838/75 Heading F1B An electronic ignition device for igniting gas fuel, for example in a cigarette lighter, comprises a D.C. voltage source 4, voltage raising means connected to the source and to a spark gap 1, the voltage raising means including oscillator means connected to the source and operative for converting the D.C. voltage of the source into an oscillating voltage, switch means 5 having an activated and an unactivated condition, the switch means being operative upon activation for initiating operation of the oscillator means to cause the voltage raising means to generate a spark voltage across the gap and terminating means operative when the switch means remains in the activated condition for automatically terminating operation of the oscillator means upon elapse of a predetermined time interval following the initiation of operation of the oscillator means, the terminating means comprising pulse generating means 210 operative for generating a pulse upon elapse of a predetermined time interval and bistable means 200. The bi-stable means 200 is operative when in a first state for permitting operation of the oscillator means and operative when in a second state for preventing operation of the oscillator means. Means are provided which connect the switch means to the bi-stable means 200 for causing the bi-stable means to undergo a transition to the first state in response to transition of the switch means from the unactivated to the activated condition and means 201 connects the pulse generating means to the bi-stable means for causing the bi-stable means to undergo a transition to the second state in response to receipt of the pulse and to remain in the second state until such time as transition of the switch means from the unactivated to the activated condition again occurs. The pulse generating means comprises means 212 for generating a pulse train and frequency divider means 213 having an input connected to receive the pulse train and having an output 211 constituting the output of the pulse generating means. In a modification, (not shown), the bi-stable means comprises a thyristor which receives a pulse from the discharge circuit of capacitor 12. A gas lighter incorporating the electronic ignition device is described.  The parent Specification 1427741 and the Divisional Specification 1427742 are referred to.
Patent GB-1155378-A (GB)
Title: Automatic Coupling Universal Drive
IPC: A01B71/06
Filed: 1966-09-27
Abstract: 1,155,378. Universal joints. INTERNATIONAL HARVESTER CO. 27 Sept., 1966 [10 Feb., 1966], No. 42989/66. Heading F2U. [Also in Division A1] The power take-off shaft 113 of a tractor is coupled to an implement driving shaft 61 as the implement is raised. A coupling plate 24, universally jointed to the power take-off shaft, has a projecting lug which co-operates with a slot on a coupling plate 44 universally jointed to the implement driving shaft. The plate 44 is held by a spring 82 during coupling so that it contacts plate 24 as the implement is raised. The lug on the plate 24 has undercut parts which are engaged by corresponding undercut parts of the slot in plate 44 whereby the two plates are locked together. The implement driving shaft is mounted in the bearing housing 67 to be axially movable against a biasing spring 66.
Patent GB-910692-A (GB)
Title: Shuttering girder
IPC: E04G11/52
Filed: 1959-12-18
Abstract: 910,692. Telescopic girders for supporting shuttering. URANUS TRUST. Dec. 18, 1959 [Dec. 27, 1958], No. 43030/59. Class 20 (2). [Also in Group XXV] A telescopic girder for supporting shuttering comprises a number of sections, e.g. 1<SP>11</SP>, 1, 9 pivoted together at 2, 3 (see Group XXV) the end section 9 receiving an inner member 8. Each section comprises a wide upper chord 20 connected by zig-zag bars 23 to a narrow lower chord 21 giving a cross-section of open isosceles triangular form. The inner member 8 is secured in position by a clamp 10 and the free end of the section 1<SP>11</SP> is provided with an extension 14<SP>1</SP> which is stayed by a screw tightener 16.
Patent GB-1216159-A (GB)
Title: Ion exchange membranes
Inventor: BLANCHARD ALAIN
IPC: C08J5/22
Filed: 1969-08-29
Abstract: 1,216,159. Ion exchange membranes. RHONE-POULENC S.A. 29 Aug., 1969 [2 Sept., 1968], No. 43100/69. Heading B5B. [Also in Division C3] Ion exchange membranes comprise particles of an ion exchange resin in a matrix of vinyl chloride-alkyl maleate copolymer. In the examples, a vinyl chloride-butyl maleate copolymer is dissolved in tetrahydrofuran, mixed with particles of an ion exchange resin impregnated with acetone and cast into a film, then immersed in a water bath for 15 minutes. Optionally the film is dried and subjected to pressure. Ion exchange resins used are crosslinked polystyrene carrying quaternary ammonium groups or sulphonic acid groups.
Patent GB-433643-A (GB)
Abstract: 433,643. Workmen's time-recorders. GLEDHILL, A. H., Trinity Works, Halifax, Yorkshire. March 6, 1934, No. 7060. [Class 106 (iv)] In time-recorders for workmen the time type wheels are adapted to record the time in minutes in units and tens, and hundreds and thousands, and the driving mechanism interposed between the clockwork and the type wheels is adapted to be thrown out of engagement for any predetermined periods during the day. The clockwork drives a shaft B, Figs. 1, and 2, to which is secured a block C carrying a pivoted spring controlled latch c<1> that co-operates with a slot d in a disc D loose on the shaft B. The disc D is formed with a boss d<1> and a flange d<2> from which projects a pin d<3> passing through a slot in a gear wheel d<4> and normally held against one end of the slot by a spring d<5>. The movement of the shaft B is transmitted by the disc D and wheel d' to a wheel d' secured to a shaft E rotatably mounted in end plates F, F<1> and to which is fixed a type wheel G representing minutes in units and tens from 0 to 99. A snail cam J, Figs. 2 and 3, on the wheel G co-operates with an arm j pivoted on a pin j<1> and rigidly connected to another arm j<2> carrying a spring controlled pawl j<8> that co-operates with a wheel h to advance the same one unit on the completion of a revolution of the typewheel G. The wheel h is secured to a typewheel H with type representing hundreds and thousands of minutes loose on the shaft E. During this transfer operation a projection j<11> on the pawl engages a pin on an arm j to withdraw a detent pin j from engagement with the teeth of the wheel h and a pin j on the end of the arm j<2> engages the teeth of the wheel to prevent overthrow; the arms j<2> and j<5> are connected by a spring j<7>. Means are provided to disengage the driving mechanism during meal times and other non-working periods. For this purpose a disc K, Fig. 1, driven by the clock to make a revolution once a day is provided with pins k<1> .... k<4> that co-operate with an arm k<5> operatively connected to an arm k<9>. Attached to or formed integrally with the arm k<9> is a second arm k<12> and on these arms are pins k<11>, k<13> adapted to co-operate with a projecting cam surface d<8> on the disc D. The parts are shown in Fig. 1, in the position they occupy at 12 o'clock noon; if it is assumed that the dinner interval commences at 12.30 p.m. the pin k<1> has displaced the levers k<5>, k<9>, and k<12> and the disc D has rotated through 180‹ so that the pin k<13> has ridden up the cam surface d<8> and is then released to knock the latch c<1> out of the slot in the disc D. At the termination of this interval the latch c<1> has made one revolution and as the pin k<1> has freed the lever k<5> the latch under its spring action again engages the slot d. Pins k<2> ... k<4> act in a similar manner to arrest the drive during the hours from 5 a.m. to 8 a.m. so as to reduce the total working period to 2,400 minutes to ensure the typewheels being at zero at the same time each day.
Patent GB-921381-A (GB)
Title: Regulating flap valve particularly for gaseous media
IPC: F24F13/15
Filed: 1960-12-20
Abstract: 921,381. Ventilators. ZAVODY NA VYROBO VZDUCHOTECHNICKYCH ZARIZENI NARODNI PODNIK MILEVSKO, VYZKUMNY USTAV VZDUCHOTECHNIKY. Dec. 20, 1960 [Dec. 31, 1959], No. 43738/60. Class 137. [Also in Group XXIX] A valve regulating the flow of air is formed by a frame 1, Fig. 1, with four pairs of pivots 3 for a pair of outer flaps 3a and a pair of inner flaps 3b, the pivots 3 accommodating arms 4 in such a manner that the effective length thereof are adjustable. The arms 4 of the outer flaps 3a are connected by rods 8, Fig. 2, of variable length to one of two pins 7 on a disc 6 operable by a hand lever 10 or power means; the position of the pins 7 on the disc 6 is adjustable. The inner flaps 3b are actuated from the outer flaps by rods 9, Fig. 3, connected to the arms 4 on the opposite ends of flaps from that to which the rods 8 are attached. The first crank, constituted by the disc 6, has an effective radius R which is equal to or greater than the effective radius r of the second crank formed by each of the arms 4 that are connected to the disc 6 by one of the rods 8. Various motions of the flaps and hence flow characteristics may be obtained in dependence upon the adjustments made to the operating and interconnecting mechanism.
Patent GB-1119649-A (GB)
Title: Improvements in or relating to filters for the direct filtration of liquids and of water in particular
IPC: B01D24/00
Filed: 1966-09-30
Abstract: 1,119,649. Multi-layer filters. DEGREMONT. 30 Sept., 1966 [25 Oct., 1965], No. 43840/66. Heading BID. Water to be filtered is introduced through manifold 3 and is pre-filtered in passing upwardly through a course granular layer 2, a fraction of this prefiltered water being directed through a drainage device 9 and a pipe line 10 to the upper surface of the upper of two fine grannular layers for downward flow through the layer while the remaining fraction flows upwardly through the lower fine granular layer, both filtered fractions being removed through drainage device 4. The drainage devices are connected through valves 13 and 15 to the raw water supply pipe 14, for back washing purposes and an air manifold, also far back scouring purposes, is provided. The course layer may be proceeded by a settling chamber 22 (Fig. 4, not shown) provided with tangential raw water inlets - in this case a nozzle supporting member supports the course layer. The fine layers consist of sand with a very homogeneous particle size.
Patent GB-918946-A (GB)
Title: An improved extrusion device for use in blow-moulding apparatus
Inventor: GREBOWIEC MICHAEL
IPC: B29C48/09
Filed: 1961-12-08
Abstract: 918,946. Extruding tubes for blow moulding. REXALL DRUG & CHEMICAL CO. Dec. 8, 1961, No. 44096/61. Class 87(2). An extrusion device for use in blow moulding includes a mandrel moved by the engagement of a moving cam with a cam follower operatively connected to the mandrel, to vary the wall thickness of the extruded tube during extrusion. Plastic is forced into the extrusion head 11 through the openings 14 and a tapered mandrel 22 is moved up and down within the head 11 by a lever 32 which rooks about the pivot 32b. and whose precise position is controlled by the reciprocating cam 60 and the spring 45. The cam 60 is supported by roller 54, and is moved to and fro by the hydraulic ram 55. Provision is made for adjusting the various components, and other arrangements of mandrel, pivot, cam and spring are described.
Patent GB-1004986-A (GB)
Title: Improvements in fluid-pressure servo-controlled overspeed gear for steam turbines
Inventor: ATKINSON MYLES BIRKETT
IPC: F01D21/02
Filed: 1960-12-28
Abstract: 1,004,986. Turbines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 11, 1961 [Dec. 28, 1960], No. 44458/60. Heading FIT. [Also in Division G3] An overspeed limiting control for steam turbines comprises a piston 3 slidable in a cylinder 2, connected by a rod 16 to a pilot valve of the steam valve of the turbine. The movement of piston 3 is controlled by a valve 1, actuated by a solenoid 9, which admits or exhausts oil from the cylinder 2 through connections 1a, 1b. The piston is loaded by a spring 7 to the position shown in which the steam valve is closed. Ports 4 are provided through the piston and a valve 5 is loaded by a spring 6 to a position closing these ports, the valve being connected to a dashpot piston 10 by a rod 14 having a loose fit in a bush 12. A ball valve 15 is provided to by-pass the dashpot. In operation when the turbine is moving normally the valve 1 allows oil from inlet 1a to flow into the cylinder 2 whereby the piston 3 and valve 5 are moved downwards against the spring loading and the valve spindle abuts a plate 8. The valve 15 opens during this movement to prevent cavitation. When the speed of the turbine suddenly rises due to a loss of load, the solenoid is energised to move the valve 1 upwards to the position shown and the piston 3 starts to rise under the action of spring 7. Due to the dashpot, movement of the valve 5 is retarded and the ports 4 are opened thus allowing flow from the cylinder 2 through these ports to provide a rapid movement of the piston 3 to close the steam valve. The solenoid 9 has a short time constant which may be further reduced by a large resistor arranged in series.
Patent GB-1142739-A (GB)
Title: Improvements relating to wheel suspensions for vehicles
IPC: B60G3/24
Filed: 1967-09-29
Abstract: 1,142,739. Independent wheel suspensions; mounting differential gear-boxes. DAIMLERBENZ A.G. 29 Sept., 1967 [1 Oct., 1966], No. 44505/67. Headings B7D and B7H. A vehicle comprises a wheel suspension wherein semi-trailing arms 11 are mounted on the vehicle superstructure 12 by way of support members 13a, 13b which cross and are each provided with a mounting 14 on the side of the vehicle near the associated wheel 10 and a mounting 15 on the opposite side of the vehicle. The mountings 14 are preferably of larger diameter than the mountings 15 and the members 13a, 13b are cranked where they cross each other and a drive shaft or differential gear housing 17 and are preferably of identical form A torsion bar suspension spring 22 is housed within the interior of the uncranked portion of each member 13a, 13b and protrudes from the cranked portion to be clamped to the differential gear housing 17. The housing 17 is mounted on the superstructure by resilient mounts 19 at the forward end of an extension 17a of the housing and 20, 20 at the ends of a flat cross member 21 which is secured to the rear of the housing 17.
Patent GB-1261818-A (GB)
Title: Transparent jacket for a dust cover of a book
Inventor: BLUNT GEORGE MALCOLM
IPC: B42D3/00
Filed: 1969-09-10
Abstract: 1,261,818. Loose covers for books. G. BLUNT & SONS Ltd. 9 Sept., 1970 [10 Sept., 1969], No. 44623/69. Heading B6A. A transparent jacket for the dust cover 5 of a book comprises an elongate strip of transparent material such as polypropylene provided along one longitudinal edge with a margin 2 of pressure-sensitive adhesive and along the other longitudinal edge a permanently-creased foldedin portion 3. The dust cover 5 is placed with one of its longitudinal edges within the portion 3, and the part 6 of the strip along the opposite edge thereof is folded over the edge of the cover 5 and secured thereto by the adhesive margin 2. Before use, the margin 2 may be protected by a waxed paper strip. The jackets may be cut from material supplied in roll form.
Patent GB-1340020-A (GB)
Title: Field effect transistor logic gate
IPC: H01L27/04
Filed: 1972-09-27
Abstract: 1340020 FET logic circuits NORTH AMERICAN ROCKWELL CORP 27 Sept 1972 [2 Dec 1971] 44709/70 Heading H3T In a two-phase F.E.T. logic circuit, # 1  is connected 32 directly to the substrate of F.E.T 21 to charge C31 through the drain-substrate PN junction, thereby eliminating the voltage reduction which would otherwise arise from the threshold of F.E.T. 21 when operating normally. The drain 25 of F.E.T. 23 also has its capacitance precharged through the substrate-source junction of F.E.T. 21. In operation, # 1  is supplied also to F.E.T. 23 to prevent a voltage drop across its source and drain and thereby reduce power loss. In # 2  time F.E.T. 21 conducts to discharge C31 if the input 28 to F.E.T. 23 is true. A combination of F.E.T.'s may replace F.E.T. 23 to perform logic operations. The circuit is said to reduce the effect of radiation damage, which could cause a rise in F.E.T. threshold levels due to charges induced in the gate insulation.
Patent GB-1397834-A (GB)
Title: Apparatus for tube rolling
IPC: B21B21/00
Filed: 1972-09-28
Abstract: 1397834 Tube rolling mills T A SAKSAGANSKY P I ORRO B A ISKRA V S MATVEEN B I VARENIK and N S KIRILENKO 28 Sept 1972 44746/72 Heading B3M A tube rolling mill comprises a pair of working rolls 11 and 16 which are reciprocated and rotated in a stationary housing 8 by means of rack- and-pinion drives connected to main driving cranks 2 and connecting rods 1. As the cranks rotate, the racks 4 are reciprocated and mesh with gears 10 (Fig. 2) associated with the roll 11 to drive the roll. The meshing of the gears 10 with side racks 15 and with gears 17 associated with the roll 16 causes both rolls to be reciprocated and rotated in unison. Idler gears 21 mesh with the gears 17 and with further racks 25 at the top of the housing. The upper and side racks are able to shift longitudinally to a limited extent, in order to reduce slipping between a tube being rolled and the pass grooves. Springs at the ends of the racks bias them towards central positions. Rollers 28 associated with the rolls move along upper and lower guide bars 27 which are adjustable towards or away from each other by wedges 29.
Patent GB-1457953-A (GB)
Title: Method for producing l-glutamic acid by fermentation
IPC: C12P13/18
Filed: 1974-10-17
Abstract: 1457953 L-Glutamic acid AJINOMOTO CO Inc 17 Oct 1974 [17 Oct 1973] 44979/74 Heading C2C A method for producing L-glutamic acid comprises culturing an L-glutamic acid producing microorganism in an otherwise conventional aqueous culture medium containing an excessive amount of biotin for producing glutamic acid and a sufficient amount of surfactant for suppressing the excessive activity of biotin, and recovering the L-glutamic acid accumulated in the culture medium, the microorganism being a mutant derived from an L-glutamic acid producing strain of Brevibacterium and sensitive to N-palmitoylglutamic acid, and the surfactant being a fatty acid having 6 to 19 straight carbon chains, a salt thereof, an ester of the fatty acid or an amide of the fatty acid. Suitable surfactants are polyethyleneglycol-mono-palmitate, polyethyleneglycol - mono - margarate, polyoxyethylene - sorbitan - mono - palmitate and polyoxyethylene - sorbitan - mono - stearate. Examplified microorganisms are Brevibacterium flavum FERM-P 2308 and Brevibacterium lactofermium FERM-P 2307.
Patent GB-1204904-A (GB)
Title: Improvements in or relating to recoilless weapons
IPC: F41A1/08
Filed: 1967-10-03
Abstract: 1,204,904. Recoilless weapon. FORSVARETS FABRIKSVERK. 3 Oct., 1967 [4 Oct., 1966], No. 44991/67. Heading F3C. A recoilless weapon comprises a barrel 1 with a rear constriction 4, or the constriction is provided in a case surrounding the projectile. The projectile is formed with a tubular member 8 which is concentric with the barrel and extends rearwardly from the projectile to behind the constriction where it is provided with a ring of fins 7. A metal or metal-alloy blow-out disc 6 is interposed between the constriction 4 and the fins, the disc being formed with a plurality of substantially radially directed weakenings (Fig. 2, not shown) which are positioned intermediate the fins 7. On firing, the disc is divided into a number of segments which are bent around the fins (Figs. 4, 5, not shown). The weakenings may comprise slots, cut or punched holes or the like. The disc may be of aluminium and be provided with stamped marks (Fig. 3, not shown) to facilitate the correct positioning of the disc in relation to the fins.
Patent GB-1370690-A (GB)
Title: Nuclear fuel
IPC: G21C3/62
Filed: 1971-09-28
Abstract: 1370690 Nuclear fuel NUKEM GmbH 28 Sept 1971 [9 Oct 1970] 45040/71 Heading G6C Nuclear fuel comprises separate zones of fuel material (plutonium carbide or nitride) and fertile material (uranium carbide or nitride), the porosity of the fuel zones being higher than that of the fertile material zones. The fuel is prepared by mixing uranium carbide or nitride in granulated form with plutonium oxide and carbon, compressing the mixture, and sintering. The plutonium oxide and carbon may be prereacted before mixing with the other component. If the proportions of plutonium oxide and carbon are such that sub-stoichiometric plutonium carbide is formed, metallic plutonium becomes concentrated at the surfaces of the particles which may be heated in N 2 , H 2 S or PH 3  to form stabilizing nitride, sulphide or phosphide coatings. The original grains of uranium carbide may be coated with a protective layer of stearic acid. Specification 1,370,689 is referred to.
Patent GB-1488685-A (GB)
Title: Moulding compositions
IPC: E04F15/10
Filed: 1974-10-17
Abstract: 1488685 Thermoplastic rubber-cork compositions DUNLOP Ltd 17 Oct 1974 [18 Oct 1973] 45138/74 Heading C3P A moulding composition comprises cork particles in a matrix of a non-vulcanizable composition of a thermoplastic rubber, e.g. a styrene-butadiene block copolymer, ethylene-propylene copolymer, ethylene-propylene-ethylidene norbornene terpolymer, propylene oxide elastomers and polyurethane elastomers. Softeners, e.g. naphthenic oils, reinforcing fillers, colorants and extenders, e.g. atactic polymers, may also be included. The compositions may be moulded into sheet or tile form for wall or floor covering or to form handle grips.
Patent GB-1149703-A (GB)
Title: Method of forming a metal layer on a substrate
IPC: C23C18/28
Filed: 1967-10-05
Abstract: 1,149,703. Coating with metals. INTERNATIONAL BUSINESS MACHINES CORP. Oct.5, 1967 [Dec.29, 1966], No.45430/67. Heading C7F. Prior to coating a substrate, which may be a plastic coated metal plate, with a metal by e.g. electroless plating, vapour deposition or sputtering, the surface is coated with a solution containing a metal salt and a plastics material, e.g. a polyimide, and the metal salt is reduced. The metal salt may be nickel hexachloropalladate, palladium nitride or palladium trimethylbenzyl ammonium nitride. The salt is reduced by heating in e.g. hydrogen or argon or dipping in sodium hypophosphite. A layer of Ni or Cu may then be electroless plated on the palladium. The coated substrate may be heated. A Ni-Fe or Cu layer may be electro-plated on the electroless layer.