baber/WOPTO huggingface dataset:
Patent GB-2031038-A (GB)
Title: Fibre Drafting Apparatus and Method
IPC: D01H5/20
Filed: 1979-09-18
Abstract: A method of drafting fibres which comprises drawing out fibres from a sliver by means of a succession of discrete bites which draw the fibres from a feed position to a release position, the nips being timed to ensure continuity of the fibres so drafted, and causing or allowing the tension of the fibres to drop to substantially zero immediately prior to each successive nipping action. In apparatus for use in the method, a fibrous sliver is supplied by feed rollers 10, 12 to a porcupine roller 16 from which the fibres are intermittently drafted by reciprocating jaws 20 carried on a rocking arm 22. Retaining rollers 92 and 94 take up the slack in the drafted sliver released by the jaws 20 at such a rate that the slack is just taken up when the jaws return to the proximity of the roller 16 for a further bite. <IMAGE>
Patent GB-2034318-A (GB)
Title: Photopolymerisable compositions, derived coatings and other polymerised products
IPC: C08L61/00
Filed: 1979-10-16
Abstract: Photopolymerisable compositions capable of polymerisation by an acid-catalysed mechanism under the influence of ultraviolet and/or visible light comprise (a) at least one material capable of polymerisation by an acid- catalysed mechanism to a polymeric material of higher molecular weight state, (b) a photosensitive aromatic sulphonium salt and (c) a material which under the conditions of photopolymerisation will yield a significant proportion of free radicals. These compositions yield useful coating films and other products on irradiation.
Patent GB-2041456-A (GB)
Title: Fluid-powered engine
IPC: A63H29/16
Filed: 1979-11-16
Abstract: A compressed air engine, suitable to power a toy wheeled vehicle or airplane, has fluid imput cavity 120 in continuous fluid communication with a compressed air source and separated from fluid delivery cavity 122 by wall 124 having a valve opening 126. Cavity 122 communicates continuously via airline 54 with cavity 152 in cylinder 104 containing movable piston 148, and is separated from an open-ended exhaust cavity 128 by wall 130 having an exhaust opening 132. Downward movement of piston 148 actuates a valve rod 136 through a cam 164 formed on crank disc 160 to open valve opening 126 and close exhaust opening 132, thereby allowing fluid to reach piston cavity 152. Valve opening 126 is closed and exhaust opening 132 opened when the piston 148 moves upwardly, thereby allowing fluid from piston cavity 152 to reach the outer air via exhaust cavity 128. In another embodiment a linkage, outside the cylinder controls valve rod 136. <IMAGE>
Patent GB-2069886-A (GB)
Title: Chuck
IPC: B23B31/00
Filed: 1980-02-22
Abstract: In order to maintain alignment of flats of a polygonal workpiece bar (24) with the jaws of a 3-jaw chuck when the jaws are open, there is incorporated within the chuck a transversely extending metal plate (28) which is disposed behind the jaws and which contains an aperture (32) dimensioned to accept with a sliding fit the polygonal workpiece bar. The plate (28) is attached to the chuck body in a manner enabling the plate to be easily fitted and removed so as to be replaceable by another plate having a differently dimensioned aperture. <IMAGE>
Patent GB-2051416-A (GB)
Title: Hydraulic servo-controlled amplifier for internal combustion engines
IPC: F02M51/04
Filed: 1980-04-23
Abstract: The amplifier includes a double- acting follow-up piston 13 and a control spool 15 disposed coaxially thereof, and its adjusting movement is controlled by a valve device which comprises two control edges (31, 32), Fig. 3 (not shown), on the control spool 15 which enable pressure medium to flow out of a selected one of the pressure chambers 18, 19, and a hydraulically actuable change-over valve 24 which operates as a logic valve and is in the form of a three-port, two-position valve interposed between a pressure medium supply line 23 and two branch conduits 21, 22 leading to the pressure chambers. The valve 24 automatically controls the supply of pressure medium to one of the pressure chambers 18 or 19 when the other of the pressure chambers is relieved of pressure, whereby the piston 13 and governor rod 11 move to a new position. The amplifier with its compact construction and simplified control is particularly suitable for rapid actuation of the adjusting member of a fuel metering device. <IMAGE>
Patent GB-2058878-A (GB)
Title: Mine Tunnel Supports
IPC: E21D11/18
Filed: 1980-04-25
Abstract: A support structure suitable for supporting the walls and/or roof of a tunnel comprising at least two supports and lagging boards, the supports (2) being spaced apart and each having one or more flanges for positioning the ends of the lagging boards, the lagging boards being positioned between the supports to form a roof and/or walls of the tunnel, the support structure including ties (4) extending between adjacent supports and positioned between adjacent lagging boards, the lagging boards each having a longitudinal recess along each major edge to accommodate said ties whereby each lagging board is held in place between the supports by said ties, the support structure including means to stress the lagging boards in the longitudinal direction and maintain the stress and means (10, 12) to stress the lagging boards in the transverse direction and maintain the stress. <IMAGE>
Patent GB-2056942-A (GB)
Title: Bale wagons
IPC: A01D90/08
Filed: 1980-08-18
Abstract: A bale wagon comprising bale pick-up means (17) for lifting bales from the ground, bale tier-forming means (16) to which the lifted bales are transferred, a load bed (23), means (25) operable to transfer a tier of bales formed in the tier-forming means to the load bed (23) to form a stack of bales on the load bed comprising a plurality of tiers of bales, and bale-retaining means (70) movable between an operative position in which the bale-retaining means (70) engage the underside of the or each lowermost bale of the foremost tier on the load bed (23), and an inoperative position clear of the underside of the or each lowermost bale, the bale-retaining means (70) occupying the operative position when the means (25) for transferring a tier of bales to the load bed (23) are inoperative and the inoperative position when the means (25) for transferring a tier of bales are operative. <IMAGE>
Patent GB-2082943-A (GB)
Title: Making relay contact spring
IPC: H01H11/04
Filed: 1980-09-02
Abstract: To produce the contact on a relay contact spring, the contact spring is given an indentation (6), preferably at the same time as the contact spring is blanked from a carrier strip. Then the indentation receives a precious metal plating (7), by selective plating. <IMAGE>
Patent GB-2061097-A (GB)
Title: Underseat bracket for office chair
IPC: A47C7/00
Filed: 1980-09-11
Abstract: A Y-shaped underseat bracket for an office chair is of unitary construction having L-section arms 17 which are smoothly curved forwards from their junction with an inverted channel section stem 20. Within the channel of the stem 20 and near the junction a socket (not shown) is provided for receiving a pillar of a chair pedestal. At the rearward end of the stem 20 lugs 12 provide a mounting for a back-rest support (not shown). A seat cushion panel (not shown) is secured to the web 16 of the stem and flanges 18 of the arms. The bracket is formed from flat sheet metal strip which is first blanked and pierced, then bent into channel form and pierced with an axial slot to divide it partly into arm-forming portions 17. Finally the arm-forming portions 17 are bent into their smoothly curved shape. <IMAGE>
Patent GB-2059757-A (GB)
Title: Improvements in or relating to seats
IPC: B60R25/01
Filed: 1980-09-15
Abstract: A seat (2) for a vehicle comprises a seat back frame (8) which is pivotally (12) disposed with respect to a seat base frame (10). In order to lock the seat in a position which would prevent use of the seat and which would prevent operation of the vehicle in which the seat is mounted there is provided catch means (14) carried by the seat back frame (8) and comprising a plunger (18) which is engageable in a recess (24) formed in the seat base frame (10). A locking device (16) in the form of a key operated lock actuates the plunger (18) so as to lock the seat in the tilted position against the steering wheel. In an alternative arrangement, the base frame is slidable on a mounting frame, and the recess is provided in the mounting frame. <IMAGE>
Patent GB-2064151-A (GB)
Title: Photopolymerisable composition
IPC: C08F289/00
Filed: 1980-11-17
Abstract: A photopolymer elastomeric article designed to be used primarily as a flexible printing plate comprising three constituents: a chlorinated polyethylene polymer matrix, a photopolymerizable, ethylenically unsaturated crosslinking agent, as typified by esters of acrylic or methacrylic acid and a photoinitiator, which is a compound that when irradiated, will initiate polymerization and/or crosslinking. The chlorinated polyethylene component may comprise a blend of chlorinated polyethylene with 5-50% of an elastomer e.g. butadiene-styrene, butadiene-acrylonitrile, styrene- butadiene-styrene block copolymer, styrene-isoprene styrene block copolymer, 1,4 polybutadiene, chlorosulphonated polyethylene and natural rubber.
Patent GB-2074837-A (GB)
Title: Unit for destroying insects in closed rooms
IPC: A01K13/00
Filed: 1980-04-02
Abstract: A unit for destroying insect pests, in particular flies, is installed permanently in a building, for example a stable, and comprises a compressed-air source (1), a filter (2), a reduction valve (3) and a solenoid valve (4), which are controlled by a chronometer (6) and a timer (5). A tube system (7) leads the compressed air to nozzle heads (8), which are mounted via a quick coupling (10) each on its individual poison container (11). Through venturi effect the flow of air through the nozzle head aspirates the poisonous liquid into said head atomizing it out in the room, where it evaporates. By distributing the containers (11) with poison evenly in the room, the danger of too strong an initial dosing resulting from remaining liquid drops from the previous spreading is eliminated, and at the same time the centrally situated compressed-air plant makes possible an extremely simple controlling of the timing of the poison distribution.
Patent GB-2090865-A (GB)
Title: Electrolytic Anode Protection
IPC: C25C7/00
Filed: 1981-01-09
Abstract: In many forms of electrolytic cells, especially those for silver recovery using stainless steel anodes, the cell is operating on the edge of corrosion of the anode and any improvement in the operating conditions is advantageous. The placing of a non-conducting shield (34) between the anode (20) and the cathode of an electrolytic cell adjacent the point of entry (22) of the current to the anode (20) prevents a higher flow of current at the point of entry (22) than at more remote parts of the anode (20). This reduces potential differences across the anode (20) and hence the risk of corrosion. <IMAGE>
Patent GB-2092249-A (GB)
Title: Vehicle Skid Control Arrangements
IPC: B60T8/32
Filed: 1981-02-04
Abstract: A vehicle skid control arrangement includes a wheel speed detector 2, a differentiator 5, a deceleration signal generator 6, generating a deceleration signal when the output signal of the differentiator 5 exceeds a predetermined threshold deceleration, and an acceleration signal generator 7 generating an acceleration signal when the output signal of the differentiator 5 exceeds a predetermined threshold acceleration. The arrangement controls a valve solenoid 28 for decreasing the brake pressure when the deceleration signal is present, and a valve solenoid 25 for holding the brake pressure constant or allowing it to increase slowly when the acceleration signal is present. In addition the valves allow a rapid increase in pressure for a predetermined time while the acceleration signal is present. This arrangement compensates for the error in acceleration and deceleration detection due to the flexibility of the structure on which the fixed part of the wheel speed sensor is mounted. <IMAGE>
Patent GB-2085444-A (GB)
Title: Novel Anticoagulant agmatine derivatives and process for the preparation thereof
IPC: A61K38/00
Filed: 1981-02-27
Abstract: The invention relates to novel agmatine derivatives and their salts of general formula I  X-Pro-Agm./HB/n    I wherein X means an  alpha -amino acid moiety of D-configuration having a phenyl, phenyl-/lower/-alkyl or phenyl-/hetero atom containing lower/- alkyl side chain, Pro means an L-proline residue, Agm stands for an agmatine group, B stands for an acid residue, and n means 0, 1 or 2, and a process for their preparation, which comprises condensing a 1,4- diamino-butane derivative of general formula II  A-HN-CH2-CH2-CH2-CH2-NH2./HB/n    II wherein A means H2N-C-Nh-, Y-Nh-C/NH/- or Q moiety, Y and Q stand for amino protecting groups usually applied in peptide chemistry, B means an acid residue, and n means 0, 1 or 2,-with an L-proline blocked on its amino group and stepwise with the subsequent amino acid, or with some L-proline peptide, by known methods of peptide chemistry, the Q protecting group is optionally cleaved from the 1,4-diaminobutane moiety of the compound prepared, the amino group, set free, is converted into a guanidino group by known methods, from the resulting dipeptidylagmatine both the terminal amino protecting group and optionally the Y blocking group of the guanidino moiety are removed and the free dipeptidylagmatine is isolated in the form of a salt.
Patent GB-2073400-A (GB)
Title: Fuel injector
IPC: F23R3/34
Filed: 1981-04-01
Abstract: A fuel injector 16 for the main fuel system for a two-stage combustor 18 of a gas turbine engine is modified so that the swirling air 24 mixing with the fuel is injected into a fuel passage 22 prior to the mixture being injected into the combustion zone for reduced smoke emissions. <IMAGE>
Patent GB-2076594-A (GB)
Title: Transformer Transport Means
IPC: H01F27/02
Filed: 1981-05-15
Abstract: The invention relates to a carrying case 1, having a transformer 2 set within it, and socket means 5, 6 lying externally of the carrying case 1 whereby the transformer 2 can be connected to a source of mains electricity supply and connected to a power tool, the transformer 2 being so located within the carrying case 1 as to leave space for a power tool operable from a reduced voltage. <IMAGE>
Patent GB-2075812-A (GB)
Title: Cutting tool for grafting
IPC: A01G1/06
Filed: 1981-05-20
Abstract: A cutting tool for use in preparing scions and clefts for grafting in viniculture, arboriculture, horticulture and the like, comprises two members 1, 6 having a common pivot 5, the portions of the members on one side of the pivot 5 serving as handles and the portion of the second member on the other side of the pivot 5 to the handle being connected firstly with the handle portion of the first member 1 via a spring 9 and secondly to the non-handle portion of the first member 1 via a movable understock locating member 13 attached to the second member 6 and a cutting edge 15 attached to the first member 1, the understock locating member being downwardly movable guided by a groove 11, on pressing the handles together and compressing the spring 9 and on release of the handles and spring 9 returnable towards the cutting edge 15 for, for example, cutting a scion from an understock. <IMAGE>
Patent GB-2078916-A (GB)
Title: Container for hot granular material
IPC: B65D88/54
Filed: 1981-05-28
Abstract: A container for conveying material such as reduced iron from a furnace to other plant in which the entrance of air into the container during use is minimized comprises a closed bottomed vessel (1) with a single charge/discharge opening (3) therein, said vessel being adapted to be rotated between an upright charge condition and an inverted discharge condition, and having a tapered section (2) in its upper portion which narrows towards said opening, and a charge/discharge value (6) located in the opening whereby material can either be charged into the vessel while in its upright condition, or discharged from the vessel while it its inverted condition. A blast port 9 for purging the vessel with nitrogen or inert gas before charging the reduced iron communicates with the interior of the vessel via a passage in one of the legs 8. <IMAGE>
Patent GB-2099496-A (GB)
Title: Toilet seat hinge
IPC: A47K13/12
Filed: 1981-06-01
Abstract: A toilet seat (1) with a hinge bearing (2) for arranging said seat (1) on a toilet pan (3) has two bearing openings (9), between which is arranged the hinge bearing (2) with two detachable bearing bolts (4) forming the hinge axis and extending into the hinge bearing (2) through its ends (8). To construct such a toilet seat (1) in such a way that it is suitable for easy and rapid disassembly and/or refitting, e.g. for cleaning purposes, so that no fixing means are left behind on the seat and the bearing bolts (4) do not have to be kept as individual components, whilst also offering the possibility of fixing a toilet cover (11) which substantially hides the hinge bearing (2) in the closed position, the bolts (4) can be retracted into the hinge bearing (2) at least up to its ends (8) in an unlocking position by turning toothed knobs (14) which engage a rack 13 on each bolt (4). The bearing bolts are secured in the locking position and are prevented from falling out in the unlocking position, so that they form a unit with the hinge bearing (2). <IMAGE>
Patent GB-2082966-A (GB)
Title: An appliance for the repair of rubber or plastics conveyor belts and for making them endless
IPC: B29D29/00
Filed: 1981-07-01
Abstract: An appliance for the repair of rubber or plastics conveyor belts 1, usually having reinforcement inserts 2, and for making them endless, comprises heatable press plates 3, 4, upper girders 5, lower girders 6 and hydraulic pressure-producing equipment 7. The girders 5, 6 are connected together in pairs by tensioning bolts 8 with mechanical tightening facilities 9 and undergo bending deformation under a specified pressure, with a defined deflection curve or bending line. The pressure- producing equipment 7 acts between one of the press plates 3 and the associated girders 5, and consists of hydraulic tubes which are of constant perimeter but the cross-section of which can be deformed and which are supported on one side by the girder 5, and on the other side on a U-profile pressure plate 12. The distance of the pressure plate 12 from the girder 5 is adjustable and is so adjusted that in the operating condition the tubes 7 possess an oval cross-section. The deflection of the girders can be compensated by a deflection curve compensator 11. The tubes 7 may be arranged either parallel to or transversely of the girders and may either be connected to a common source of pressure medium or be tightly sealed but contain an incompressible liquid. <IMAGE>
Patent GB-2105263-A (GB)
Title: Typesetting
Inventor: REEVE PAUL MICHAEL
IPC: B41B27/00
Filed: 1981-07-09
Abstract: A typesetting system is described which permits the setting of complete page layouts of newspapers and similar publications. In the specific embodiment text input means (4) and graphics input means (5, 6, 7) provide data which is used to drive an electron beam microfabrication device (9) arranged to produce microform output. in the illustrated embodiment control is provided by a computer (1). An interactive graphics terminal (3a, 3b) permits determination of any desired layout for the materials. Automatic justification and point-size selection are provided. <IMAGE>
Patent GB-2080626-A (GB)
Title: Circuit interrupters
IPC: H01H33/84
Filed: 1981-07-13
Abstract: An electrical circuit interrupter including a pair of separable contacts (1a, 11) which during contact separation are totally enclosed within a gas-filled chamber (7) incorporates means for injecting an arc-extinguishing liquid between the separating contacts through radial holes (9) in an insulating inner cylinder (8) and also through an arc-ring (10). The arc-extinguishing liquid is suitably a perfluoro-alkane having 3 to 8 carbon atoms per molecule, and the gas within the chamber (7) is suitably sulphur hexafluoride. <IMAGE>
Patent GB-2101921-A (GB)
Title: A method of forming a matrix
Inventor: JONES BRYAN EMRYS
IPC: B01J19/32
Filed: 1981-07-16
Abstract: A matrix (26) for use either as a forming tool or as a mould in which a forming tool may be produced is formed from a plurality of blades (10) arranged with their surfaces adjacent to form a block (12). The edges of the blades defining a first surface of the block are cut to give the first surface a first profile (20). The edges of the blades defining a second surface opposed to said first surface are cut to give the second surface a second profile (24). The cut edges defining the second surface are then brought into contact with a planar surface whereby the first and second profiles are superimposed in the first surface such that the matrix (26) is defined thereby. <IMAGE>
Patent GB-2089017-A (GB)
Title: Equipment for preheating a processing gas
IPC: F23L15/04
Filed: 1981-09-21
Abstract: Equipment for preheating a processing gas by means of heat recovered from a waste gas comprises a processing gas duct 2, a waste gas duct 3 and a bypass duct 8. Flow rate regulators 4 and 9 acting in opposition in the processing gas and bypass ducts respectively are controlled by driving means 7 (which may be a piston and cylinder arrangement) attached to a temperature sensor 5 within the waste gas duct 3. In operation high temperature waste gas flows through duct 3 over the sensor 5. Thermally responsive hydraulic fluid within the sensor undergoes a volume change and acts upon the driving means against a return spring 11, thus activating the flow rate regulators and thereby varying the amount of processing gas which passes through the heat exchanger 1 to be preheated, before mixing with the remaining processing gas passing down the bypass duct 8. The equipment may be installed on an fuel-fired air heater. <IMAGE>
Patent GB-2113613-A (GB)
Title: Improvements in or relating to printers
Inventor: JONES MALCOLM EDWARD
IPC: B41J25/20
Filed: 1981-12-02
Abstract: A printer for use in a text or data communication system has one or more printing elements such as a daisy wheel. The or each printing element has character forming parts which can be actuated to cause in a single strike of the character forming part the imprint of a character on a print receiving medium. The printer is arranged so that one or more of the character forming parts can be actuated to strike successively at the same position or substantially the same position on the print receiving medium to produce the final character. This arrangement allows complex characters of latin based alphabets to be produced by forming an image from a combination of characters provided on the character forming parts of the printing element or elements.
Patent GB-2090891-A (GB)
Title: Method and apparatus for reducing the differential pressure sticking tendency of a drill string
IPC: E21B21/00
Filed: 1982-01-07
Abstract: A method for reducing the sticking tendency of a rotating drill string in its drill cuttings and the surrounding wall cake by constructing the drill string elements, such as the tool joints, drill collars, wear knots, with noncircular cross-sectional shapes. The noncircular shapes may be triangular, square or other higher order multi-faceted shapes, or elliptical. Rotation of the drill string causes a periodic opening to form between the noncircular elements and the cuttings and wall cake which results in a movement of the mass of solids around the noncircular elements to positions away from the drill string, thereby mitigating the tendency of the drill string to differentially stick. Further, hydraulic seals are also likely to be broken by the reciprocating action of the noncircular elements.