baber/WOPTO huggingface dataset:
Patent GB-2037931-A (GB)
Title: Rack-and-pinion Gearing
IPC: B62D3/12
Filed: 1979-10-15
Abstract: A rack and pinion gear has a rack bar (5) which is longitudinally displaceable in a housing (4) by rotation of a pinion (1) which engages with a rack on the rack bar. A yoke (8) straddles the rack bar (5) and supports it for engagement of its rack with the pinion. The yoke has a tubular portion within which is located a slipper (15) which is rotatable about an axis (10) relative to the yoke. Opposed helical ramp surfaces 14 and 16 engage in face-to-face engagement between the slipper and yoke which causes the yoke (8) to be displaced into engagement with the rack bar (5) when the slipper 15 is rotated about axis (10) by the biasing effect of spring (19) one end of which is anchored to the slipper and the other end to the yoke (8). The spring 19 can be a tension, torsion or a blade spring. During rotation of the slipper (15) the slipper reacts against a plate (11) on the housing to bias the yoke (8) into supporting engagement with the rack bar (5) through the ramp surfaces (14 and 16). <IMAGE>
Patent GB-2033853-A (GB)
Title: Vehicle suspensions
IPC: B60G21/073
Filed: 1979-10-30
Abstract: In a rear wheel suspension system for a four-wheeled automotive vehicle of the kind in which at least the rear pair of wheels are suspended individually each by means including fluid under pressure, the pressure fluid being contained in suspension units, and wherein one unit is directly associated with each respective rear wheel, means are provided whereby the fluid pressures can be rendered equal in the two units at least when two wheels are motionless.
Patent GB-2036275-A (GB)
Title: Heating by turbulent fluidized bed
IPC: B01J8/38
Filed: 1979-03-19
Abstract: A container (1, 11) comprises a bottom (4) which is traversed by air nozzles (3). Air blown through the air nozzles (3) maintains a fluidized bed composed of inert material. Fuel is provided to the fluidized bed after it has reached the ignition temperature. Air entering through the air nozzles (3) to form the fluidized bed is imparted with a movement of which a component (14) provides at least a rotation (7) in a horizontal plane, and fuel is injected to the lower part of the fluidized bed, preferably at about 20% of the height of the bed. Additional air for generating the rotation of the fluidized bed is supplied by an eccentric supply (5). Preferably, at least the air nozzles (3) located close to the wall of the container are sloped with respect to the vertical and in the same direction thereof.
Patent GB-2041364-A (GB)
Title: Producing Sec-butanol from Linear Butenes
IPC: C07B61/00
Filed: 1980-01-16
Abstract: The process comprises the steps of esterifying one or more linear butene in the liquid phase with an organic acid in the presence of a cation exchange resin; hydrolyzing the resulting ester to sec-butanol in the presence of a cation exchange resin; and recovering the sec-butanol by azeotropic distillation.
Patent GB-2041315-A (GB)
Title: An Endless Belt Conveyor Unit
IPC: B65G23/44
Filed: 1980-01-30
Abstract: A conveyor unit for use, particularly, in food processing has a pair of spaced supports 5 carrying a frame 6. An endless conveyor belt 11 is supported by two rollers 8, 9 rotatably mounted in the frame 6. The frame 6 is secured by one side only to the supports 5 so as to be cantilevered horizontally to thereby have a free unsupported side. One of the rollers 9 is mounted on the frame through tensioning means 10 to enable the tension in the belt to be adjusted. When the tensioning means is slackened the conveyor belt can be removed and replaced from the unsupported side without having to be cut or joined. Alternative forms of tensioning means are provided. <IMAGE>
Patent GB-2064168-A (GB)
Title: A Pneumatic Power Amplifier
IPC: F15C3/04
Filed: 1980-04-08
Abstract: A pneumatic power amplifier comprises a working pressure circuit 2-10 for the supply of compressed air to a load through a shut-off device 7, and a control pressure circuit 11, 18, 22 branched from the working pressure circuit through a fixed throttle 12 and connected to atmosphere through a variable throttle 19 for controlling the shut-off device 7 in accordance with a measuring force 20 acting on the variable throttle e.g. in response to temperature or humidity, and a non-return valve 14 is provided between the control pressure circuit and the load side of the working pressure circuit and pre- loaded towards the working pressure circuit, for ventilating the load under a condition of decreased measuring force. <IMAGE>
Patent GB-2076751-A (GB)
Title: Fixing An Openable Roof or Roof Member to a Vehicle
IPC: B60J7/08
Filed: 1980-05-21
Abstract: The invention provides fixing hood-type roof, sun-roof panel, or hard top in position by means of a slide-type fastener F. One half 6 of the slide-type fastener may be carried by a windscreen frame and the other half 10 is carried by the roof. Movement of the slider 12 interconnects the fastener halves to fix the roof in position. The slide fastener provides even tension over the roof, a feature which is particularly advantageous where a hood-type roof is being fixed to the windscreen frame. <IMAGE>
Patent GB-2080792-A (GB)
Title: Nicotinoyl pantetheine derivatives
IPC: C07D213/80
Filed: 1980-07-25
Abstract: Compounds useful to provide a prolonged duration of a desired level of free nicotinic acid in the blood without unfavourable side effects are represented by the formula   <IMAGE> wherein R1, R2, and R3 each represents a member selected from a hydrogen atom and a nicotinoyl group, provided that at least one of R1, R2, and R3 is a nicotinoyl group, and non-toxic acid addition salts thereof.
Patent GB-2060058-A (GB)
Title: Internal combustion engine
IPC: F02M23/08
Filed: 1980-09-08
Abstract: An internal combustion engine with a reciprocating or rotary piston, has the combustion chamber supplied with air via a pipe 25 to adjacent an inlet valve 8 and at least one supplementary, non-gaseous, fluent, combustible material which is introduced into the chamber by suction. The supplementary material may be a finely-ground solid, such as flour, milk powder or charcoal, and/or a liquid, such as an alcohol. The supplementary material can be introduced into the air intake passage (6) immediately adjacent to the inlet valve (8), or through one or more ports (91) in the cylinder wall (2) at about the mid-stroke level of the piston (18). Control valves (95, 96) may be used to meter the supplementary material (93, 94). Automatically operating control valves may be linked to a probe in the exhaust passage (7) to vary the quantity supplied in dependence on the exhaust gas composition. The supply may also be varied in response to the accelerator pedal (102). <IMAGE>
Patent GB-2085210-A (GB)
Title: Ball release device
IPC: G07F17/38
Filed: 1980-09-11
Abstract: A coin-freed pool table has a ball- retaining member (1) which can be moved, by operation of a coin-freed mechanism, to release balls for delivery to a player at the start of a game. A counter (10) is linked to the ball- retaining member (1) to record ball release movements. The counter (10) and a drive-transmitting link (9) between the counter and the ball-retaining member are enclosed within a container (4,5) mounted adjacent the member (1). In one embodiment, the ball-retaining member (1) is in the form of a pivotable ball tray and this is connected to the counter (10) via a cam (9) which engages an operating lever (13) of the counter. <IMAGE>
Patent GB-2059971-A (GB)
Title: Reducing the surface friction of rubber articles
IPC: C08J7/046
Filed: 1980-09-25
Abstract: The surface friction of rubber articles is reduced by firstly wetting them with carbon tetrafluoride, exposing to a glow discharge, and secondly coating with a polymer e.g. PTFE, and exposing further to a glow discharge, both exposures being for over one hour. Suitable apparatus comprises (i), in Figure 1 a rotatable cylindrical 'squirrel- cage' 5 in which the articles 9 are tumbled, the whole being inside a chamber 1 equipped with electrodes or (ii) in Figure 3, a rotatable horizontal concave table 16 inside a chamber 1 with electrodes 15. <IMAGE>
Patent GB-2074940-A (GB)
Title: Method for Making a Laminated Glass Article
IPC: C03C27/12
Filed: 1981-04-29
Abstract: A method for making a laminated glass article comprises:   a. casting into a sheet mold a single curable polyurethane reaction mixture which comprises:     (1) a polyalkylene ether glycol; (2) an organic compound containing at least three active hydrogens per molecule e.g. a triol; (3) an organic compound containing two active hydrogens per molecule e.g. a diol; and   (4) an aromatic diisocyanate;   b. polymerizing the reaction mixture to form a self-supporting polyurethane sheet;   c. removing the self-supporting polyurethane sheet from said mold;   d. laminating said polyurethane sheet to a sheet of glass; and   e. thermosetting the polyurethane. s
Patent GB-2084867-A (GB)
Title: Pad, cushion or mattress
IPC: A47C27/18
Filed: 1981-05-22
Abstract: A pad, cushion or mattress comprises a base and a top layer (2,1) of resilient material, having between them one or more liquid or gel containing envelopes (3). The material of the base layer (2) has a higher density than that of the top layer (1). The top layer (1) may be provided with transverse channels (5) which open to the external surface of the layer. <IMAGE>
Patent GB-2089353-A (GB)
Title: Ethylenic monomer polymerization process
IPC: C08F2/02
Filed: 1981-11-17
Abstract: In the bulk or suspension polymerization of vinyl monomers, particularly vinyl chloride, t-amyl peroxypivalate is employed as the initiator.
Patent GB-2093035-A (GB)
Title: Epoxy resin/polyiso-cyanate reaction products
IPC: C08G18/80
Filed: 1981-12-04
Abstract: A crosslinked resin excellent in heat resistance, toughness, moisture resistance and adhesiveness can be obtained by the use of an epoxy compound having both alcoholic hydroxyl groups and epoxy groups in its molecule and an isocyanate compound having isocyanate groups in its molecule by first reacting the alcoholic hydroxyl groups of said epoxy compound and the isocyanate groups of said isocyanate compound to produce an epoxy prepolymer having urethane linkages stable at room temperature, followed by dissociating the urethane linkages of the prepolymer to regenerate the isocyanate groups and reacting said isocyanate groups with the epoxy groups of said epoxy compound. By carrying out the above-mentioned reaction between the isocyanate groups and the epoxy groups in the presence of at least one member selected from the group consisting of amine compounds, carboxylic acid anhydrides, phenol novolac compounds and polyvinyl-phenol compounds and/or a bisimide compound, a crosslinked resin having higher heat resistance can be produced. Said prepolymer is excellent in storage stability and suitable for use in the production of laminates.
Patent GB-2118977-A (GB)
Title: Corrosion inhibiting coatings for non-ferrous metal surfaces
Inventor: DRAKE CYRIL FRANCIS
IPC: B05D7/14
Filed: 1982-02-16
Abstract: The coating incorporates a water soluble glass having corrosion inhibiting properties. Typically the coating comprises a paint incorporating a water soluble phosphate glass. In a preferred application of the process a steel surface is coated with a layer of zinc to which the corrosion inhibiting paint is applied.
Patent GB-2115173-A (GB)
Title: Spectacles
Inventor: WATKINS CECIL JAMES
IPC: G02C5/00
Filed: 1982-02-17
Abstract: The spectacle frame (1) has forwardly extending projections (5) so arranged as to support the spectacles, when placed on a flat surface, with the lenses (4) clear of the surface, to avoid scratching. <IMAGE>
Patent GB-2115236-A (GB)
Title: Electrical contact system of the insulation displacement type
Inventor: MCDONALD MARGARET JOAN
IPC: H01R4/24
Filed: 1982-02-19
Abstract: An insulation displacement contact 12, 14 is formed in a plate 10 with a slot 28 having a wider 32 and a narrower 34 portion. The plate is received in a longitudinal slot 42 in a moulding 40 which has transverse slots 46, 48 of different depths having bars 50, 52 in line with the contact slots 28. The higher bar 50 receives a thinner conductor 60 and forces in into the narrower part 34 of the slot 28. The lower bar 52 receives a thicker conductor 62 and pushes it into the wider part 32. Thus the identical contacts 12, 14 can accommodate wires of different diameters. The different heights can alternatively be provided by the use of inserts or break-off sections of the moulding. In another embodiment (Figure 7), the contact is slidable into a sleeve which has a pair of aligned large apertures and a pair of aligned small apertures in its walls. The slot can receive a thinner and a thicker conductor simultaneously. In a further embodiment (Figure 10) a cap serves to push the conductor into the slot and has several detent positions so that the user can feel when the position appropriate to the diameter of the wire used is reached. <IMAGE>
Patent GB-2114058-A (GB)
Title: Photocopying machine
Inventor: HOFFMAN LIONEL BLOOMFIELD
IPC: G03G15/22
Filed: 1979-10-02
Abstract: An electrophotocopying machine has means 20 for illuminating an original document, means such as carriage 12 for reciprocally moving the original document past the illuminating means, and a photoreceptor belt trained around rollers 42, 44 so as to travel along a predetermined path. There are, disposed adjacent the path, means 32 for charging the belt, means 35 for exposing the belt to the illuminated original document to form a latent image on the belt, means 36 for toning the latent image and means 50 for transferring the toned image to a copy sheet. The machine including a control means for making one copy of said original document during every two cycles of movement of the photoreceptor belt along its predetermined path. The control means includes means for moving the belt through two cycles along the path, and means for energizing the illuminating and charging means during the first cycle and for de- energizing and illuminating and charging means during the second cycle. <IMAGE>
Patent GB-2117845-A (GB)
Title: Hydraulic percussive apparatus
Inventor: REYNOLDS LIONEL ARTHUR
IPC: F01L25/06
Filed: 1982-04-03
Abstract: Hydraulic percussive apparatus has a body 104 in which a unitary piston/striker 101 with piston portion 102 and striker portion 103 is reciprocable, for impact with a tool T releasably retained in the forward end of the body 104. The body 104 contains a forward pressure chamber 105 and a return pressure chamber 106. The forward pressure chamber 105 is controlled by a valve V which in a cyclic manner alternately connects the chamber 105 to supply pressure P and to exhaust Ex with fluid pressure in this chamber acting on the piston portion 102 to produce forward strokes of the piston/striker 101 so that the striker portion 103 impacts the tool T. The return pressure chamber 106 is connected to the supply pressure P to provide a continuous return force acting on the piston/striker 101. A channel 113 is closed off during normal reciprocation of the piston/striker 101 but in the event of an overstroke of the latter in the forward direction interconnects the two chambers 105 and 106. The resultant hydraulic flow through the channel 113 pressurises the chamber 105 sufficiently to apply a forward fluid pressure force bias to the piston/striker 101.This holds the piston/striker 101 in the forward position so that reciprocation thereof ceases. <IMAGE>
Patent GB-2097825-A (GB)
Title: Cam arrangement for knitting machines
IPC: D04B15/32
Filed: 1982-04-13
Abstract: In an arrangement of cams in knitting feeds of circular knitting machines, butts (K2) of needles in the clearing position and butts (K1) of needles in the tuck position approach a stitch cam (3). Before reaching the stitch cam (3), the butts (K2) engage a guide cam (4) so that the corresponding needles are retracted into an intermediate position, and the butts (K1) engage a radially displaceable raising cam (5) so that the corresponding needles are raised into the intermediate position. Thus, the butts (K1) and (K2) are at the same height when they engage the stitch cam (3). This improves the knitting of elastic threads with normal threads. <IMAGE>
Patent GB-2119328-A (GB)
Title: Land vehicle propulsion system
Inventor: KING CHARLES SPENCER
IPC: B62D11/12
Filed: 1982-04-24
Abstract: A propulsion system for a track or wheeled vehicle is provided with an engine 11 having a through shaft such that output may be taken from both sides. Each end of the shaft being coupled to a ground engaging track or wheel through a continuously variable transmission unit 17, 18. The output from the CVT unit may be transmitted either directly to the track or wheel or by way of an epicyclic or other gearset if the ratio range of the CVT unit makes this necessary. The invention enables the speed of each track or wheel to be continuously varied independently of any others so improving the manoeuvreability of the vehicle. Fuel savings are also possible by enabling the engine to run at optimum speed virtually regardless of the load. <IMAGE>
Patent GB-2099430-A (GB)
Title: Preparation of carboxylic acids
IPC: C07C51/12
Filed: 1982-05-28
Abstract: The rapid production of a carboxylic acid, such as propionic acid, by carbonylation of an olefin, such as ethylene, in the presence of water is made possible in relatively high yields and at relatively low pressures by the use of a molybdenum- nickel or tungsten-nickel co- catalyst in the presence of a promoter comprising an organo-phosphorus compound or an organo- nitrogen compound wherein the phosphorus and nitrogen are trivalent and in the presence of a halide. A specific catalyst system for the reaction is also claimed.
Patent GB-2125152-A (GB)
Title: Furnace linings
Inventor: WATKINS MELVYN ALAN
IPC: F27D1/14
Filed: 1982-08-11
Abstract: Method and associated assembly for securing a thermally insulating, pleaded fibre block (1) to a furnace casing (3), wherein such a block (1) is located in a desired position upon the furnace casing (3), with the block pleats (1', 1'') extending generally normally with respect to the plane of the casing (3). At least one pair of adjacent pleats (1', 1'') are separated to expose the respective base of the pleats (1', 1'') adjacent the casing (3) and then an elongate securing element, such as a nail (4), is passed through the base of the adjacent pair of block pleats (1', 1'') and into the casing (3). A washer (5) and/or a plate (6) may be provided between the head of the nail (4) and the base of the pleats (1', 11'). <IMAGE>
Patent GB-2106966-A (GB)
Title: Method and apparatus for ice prevention and deicing
Inventor: FERREN RICHARD ANTHONY
IPC: B06B1/06
Filed: 1982-09-21
Abstract: Piezoelectric elements formed from poly(vinylidene fluoride) films (11) sandwiched between one or more electrode layers (13, 17) are used to prevent and remove ice from various surfaces (14) such as bridges, roads, walkways, vehicles, with a minimum amount of energy, preferably by electrically energizing (15) the device to cause the film to vibrate and prevent ice formation or to break-up preformed ice. <IMAGE>
Patent GB-2113158-A (GB)
Title: Cover or hub cap for a vehicle wheel
Inventor: WIRSING HELMUT
IPC: B60B7/12
Filed: 1983-01-05
Abstract: A wheel cover or hub cap, is provided with a wire ring (7) which is mounted on axial projections (3,4) of the cover or cap such that in use the ring engages, directly or indirectly via the projections, with the wheel mounting nuts (6) or bolts to secure the cover or cap to the wheel. As illustrated the ring (7) is mounted on the radially outer surfaces of alternate rigid (3) and resilient (4) projections, the latter snapping behind the wheel nuts (6) in use. <IMAGE>
Patent GB-2121134-A (GB)
Title: Electronic connector box
Inventor: HOP LEE
IPC: H02G3/08
Filed: 1983-04-08
Abstract: A watertight connector box has a removable plate (17) with projections extending through a gasket for engaging interior walls of the box to prevent lateral translation or rotation of the cover and conduit engaging means having a hollow threaded extension (22) with longitudinal slits (36) thereabout for clamping a conduit (21) upon tightening of a nut (37) thereon with tapered threads (39). In a second embodiment, a short hollow threaded cylinder (51) has a flange (52) with gasket (54) adapted to engage the interior of the box about an opening through which the cylinder extends with a split ring (58) having internal cerrations (66) and a tapered edge engaging a tapered outer end of the cylinder for tightening about a conduit (21) by a nut (57) about a conduit and having an internal shoulder engaging said split ring. <IMAGE>
Patent GB-2126748-A (GB)
Title: Optical coupling device
Inventor: WELSH FREDERIC SAGER
IPC: G02B6/34
Filed: 1983-08-30
Abstract: An optical device diverts light among various transmission elements, e.g performing multiplexing/ demultiplexing functions for light transmission involving three or more wavelengths. The device includes at least two adjacent lens assemblies (10, 11), each assembly including an at least partially reflecting element (21, 22) such as a filter disposed between two focusing elements (16, 17, 18, 19) such as graded index of refraction lenses. Each filter (21, 22) reflects a different wavelength component of incident light ( lambda 1,  lambda 2). A plurality of transmission elements (25-27) such as optical fibres are coupled to one surface (12) of the first assembly (10). One fibre (25) transmits the multiplexed signal and at least two other fibres (26, 27) each transmit one of the wavelength components. A third fibre (28) is coupled to the opposite surface (15) of the second assembly (11) and transmits a third wavelength component ( lambda 3). The two assemblies (10, 11) are positioned with their optical axes (23, 24) displaced so that the wavelength ( lambda 2) reflected by the filter (22) in the second assembly (11) can be incident on the appropriate fibre coupled to the first assembly. Optical taps can also be included on the surfaces of the assemblies. <IMAGE>
Patent GB-2145633-A (GB)
Title: Puzzle
Inventor: VEERAMALAI MUNIANDY
IPC: A63F9/08
Filed: 1983-08-31
Abstract: The puzzle comprises a pair of parts 10, 12, one of which slides with respect to the other, which together provide a closed loop 24 in which a plurality of captive balls 28 of varying colours can be moved. The sliding part 12 has a plurality of columns 40 containing balls and, by movement of the sliding part, different columns of balls can form part of the closed loop. <IMAGE>
Patent GB-2131687-A (GB)
Title: Plastics foam product
Inventor: KENYON CHARLES FREDERICK
IPC: A01G5/04
Filed: 1983-09-21
Abstract: A plastics foam product, e.g. for use in flower arranging, comprises a body 10, made from a low density hydrophilic rigid plastics foam and a water-impermeable retainer 21, made of a reacting closed cell plastics foam, integrally formed therewith so that when the body 10 has been moistened the retainer 21 is effective to maintain the integrity of the body. The retainer 21 may extend up the sides of the body 10 to prevent the escape of moisture from the undersurface of the body 10. The product is made by positioning said body 10 in a mould shaped to provide a free space 16 around the underside of the body and introducing into and reacting in the free space the constituents of the closed cell plastics foam. <IMAGE>