baber/WOPTO huggingface dataset:
Patent GB-2093786-A (GB)
Title: Idler roller assemblies for troughed conveyor belts
IPC: B65G39/10
Filed: 1981-03-03
Abstract: An idler roller assembly consists of an odd number of e.g. three rollers extending transversely of a conveyor belt to provide support therefor in which the centre roller, supporting the lowermost middle portion of the belt, has an axial length shorter than e.g. 50-70% of the axial length of the adjacent wing rollers that support the remainder of the belt. The arrangement provides improved tracking of the conveyor belt and a longer life for the bearings supporting the said centre roller. <IMAGE>
Patent GB-2077613-A (GB)
Title: A method and catalyst for exothermal catalytic gas phase reactions
IPC: C07C27/00
Filed: 1981-05-11
Abstract: An exothermal catalytic gas phase reaction is conducted in a cooled reactor containing a bed of porous catalyst particles each having an outermost zone that has catalytic activity with respect to that reaction that is less than the catalytic activity of the remainder of the particle. Optionally, the pores in the outermost zone may contain a material catalytically active in a side- reaction. When the method is applied to methanation accompanied by a water gas reaction it is preferred to use, as the catalyst particles, particles comprising a porous support containing nickel and having copper in the outermost layer of each particle. Such catalysts are novel.
Patent GB-2077045-A (GB)
Title: Magnetic actuator device
IPC: H01F7/08
Filed: 1981-05-29
Abstract: A Magnetic actuator device 50 comprising magnetizable material 51 defining a gap 57 in which a magnetizable member 56 of a composite armature 54 is disposed and movable in a direction from one side of the gap 57 to the other side in response to changes in magnetization of the movable member 56 another part 55 of the armature being fixed. The member 56 at one side has shaped surfaces 39b extending generally in the direction of movement of the member 56 and which overlap in abutting or near adjacent relationship shaped surfaces 39a of the material 51 throughout the movement of the member 56. The overlapping surfaces 39a, 39b provide a path for magnetic flux in operation of the device 50, so that an asymmetric magnetic field is distributed about the member 56 in the direction of movement causing the member 56 to move across the gap 57. In other arrangements the armature follows a curved path. <IMAGE>
Patent GB-2101180-A (GB)
Title: Hazard warning barrier
Inventor: CLOUGH PETER SPENCE
IPC: E01F13/02
Filed: 1981-07-01
Abstract: A portable barrier for providing a warning of excavations and the like comprises a plank 1 which incorporates two or more electric lamps 8 and 9 and which is detachably supported at either end on hollow posts 16. The plank 1 has T-shaped lugs 14 and 15 which engage in T-shaped slots 18 and 19 in the posts 16, each of which houses a battery 20. The lugs 14 and the slot 18 have electrical contacts which engage when the plank 1 is mounted on the posts 16. The contacts are wired to the lamps 8 and 9 and to the battery 20 to form a switch which is closed when the contacts are engaged. <IMAGE>
Patent GB-2102234-A (GB)
Title: Image processing
Inventor: BRAVIN JOHN
IPC: H04N1/387
Filed: 1981-07-22
Abstract: A visual display unit (V.D.U.), 13, has a curved image surface which causes a distorted representation of the object image, 17, to be displayed (as illustrated at 20). In the situation where a hard copy, 21, of the image is required in order, for example, to take detailed measurements this distortion can introduce unacceptable errors. The invention employs an image processing system, 11 of the ARGS (Advanced Radar Graphics System) type, to produce a version of the image that is predistorted (illustrated at 24) such that the image as viewed on the screen is an undistorted representation of the object image. <IMAGE>
Patent GB-2107040-A (GB)
Title: Heat exchange header construction
Inventor: THOMASSON RICHARD KEITH
IPC: F22B1/06
Filed: 1981-09-29
Abstract: A tube-in-shell heat exchanger has a tube plate (1) and header- defining plate (2) tied together by tie members (3). The plates (1, 2) and members (3) can be formed from a thick machined plate so they are integral, with the rim of the thick plate being machined to provide header outlet ducts (7). <IMAGE>
Patent GB-2085206-A (GB)
Title: Drop-out compensation for digital data on video tape recorders
IPC: G11B20/18
Filed: 1981-10-07
Abstract: Prior to recording, data 30 received by an assembler 31-37 is assigned to a predetermined non- standard format in which each "line" comprises a corresponding bit from each word of a block. Addition of synchronising information via a process amplifier allows the digital data to be recorded on an analog video tape recorder 18 as lines of video information. A binary '1' count "line" checksum generator 38 and a word parity bit generator 36 are provided to effect two dimensional coding indicative of assigned data content both prior to recording and following playback each recorded block ending with a "line" of parity bits. By detecting any differences between the played back and regenerated coding information drop out errors can be identified and compensated for. <IMAGE>
Patent GB-2086502-A (GB)
Title: Brake block
IPC: B32B7/022
Filed: 1981-10-27
Abstract: The brake block 10 which is suitable for use on cycles, in which the block is brought against the rim of the cycle wheel to produce a braking force, comprises a laminated construction having a facing or friction layer 12 of chrome tanned leather, an intermediate layer 13 of elastomeric material e.g. rubber and a base layer 11 (e.g. of nylon or metal) which is relatively hard in comparison with the elastomeric layer 13. Details of moulding techniques for forming the block are given. The block 10 may be secured in a retaining shoe 16 of pressed metal by means of a bolt 21. <IMAGE>
Patent GB-2111288-A (GB)
Title: Magnetic tape recording and reproducing arrangements
Inventor: WILKINSON JAMES HEDLEY
IPC: H04N5/7826
Filed: 1981-11-20
Abstract: A magnetic tape recording and reproducing arrangement comprising a rotary drum, helical scan digital video tape recorder including first and second head assemblies mounted diametrically on a rotary drum, the first head assembly including first and second heads having gaps of opposite azimuth angle, and third and fourth heads having gaps of opposite azimuth angle to the first and second heads respectively, the second head assembly including fifth and sixth heads having gaps of opposite azimuth angle, and seventh and eighth heads having gaps of opposite azimuth angle to the fifth and sixth heads respectively, tape guides to wrap a tape more than 180 DEG  around the drum, in a recording operation the first head assembly through the first and second heads and the second head assembly through the fifth and sixth heads alternately recording pairs of skew tracks on the tape such that the tracks alternate in azimuth angle, and each of the first, second, fifth and sixth heads recording video data in a track for substantially but not exceeding 180 DEG  of each complete rotation of the drum and vertical parity data in the track for some further part of each complete rotation of the drum, the further part lying wholly beyond 180 DEG , replay amplifiers to derive respective reproduced signals from all the heads, multiplexers to distribute the reproduced signals to four output channels, and a control arrangement including a programmable read-only memory to control the multiplexers in dependence on whether the selected reproduction mode is the normal mode, a slow shuttle mode or a fast shuttle mode.
Patent GB-2103447-A (GB)
Title: Multistyli recording systems
Inventor: GLAVISH HILTON FRANK
IPC: H04N1/192
Filed: 1979-05-03
Abstract: A method of, and apparatus for, recording information in a recording area uses a plurality of recording styli (51) distributed across, and reciprocating transversely of, a recording medium (52). A potential which is negative with respect to that on an electrode associated with the recording medium is applied to the styli to breakdown a dielectric top coating of the recording medium, which broken down dielectric is then removed by a dc current supplied via the styli and said electrode. The use of a negative potential on the styli is stated to reduce styli wear. <IMAGE>
Patent GB-2096084-A (GB)
Title: Belt conveyors
IPC: B65G15/14
Filed: 1982-03-12
Abstract: A belt conveyor having a pair of opposed endless belts with adjacent runs disposed so as to provide a generally vertical conveying region for articles or material placed between them, has a plurality of rollers carried by pivoted arms which extend downwards from the pivots in a manner such that the action of gravity urges the rollers against the adjacent runs of the belts, the arms having a rest position in which they are inclined at angle of not more than 20 DEG to the vertical. Pneumatic or hydraulic means may be provided to bias the rollers against the belts under a controllable pressure. <IMAGE>
Patent GB-2098695-A (GB)
Title: Self-locking and self-cleaning nut
IPC: F16B39/284
Filed: 1982-04-02
Abstract: The present invention relates to a self-locking and self-cleaning nut. Said nut comprises a tapped internal barrel portion (1) and an external skirt portion (5) coaxial with the barrel portion (1) and connected to the latter by an annular portion (6) located on the opposite side to the bearing surface side of the nut, the barrel portion (1) being internally provided throughout its height with a slot (3) located opposite an arris (11) of the flats of the skirt portion (5) and opening into the space (10) formed in that region between the skirt portion (5) and the barrel portion (1), so as to provide accommodation for released dirt. The nut according to the invention applies to the assembling of any mechanical members by means of a nut and a screw. <IMAGE>
Patent GB-2119524-A (GB)
Title: Process and apparatus for measuring the tensile stress in a rivet of a riveted joint
Inventor: MILAZZO GIUSEPPE
IPC: G01N3/08
Filed: 1982-04-27
Abstract: The process of a rivet 5 joining components together, e.g., components 2, 4 of the cage 1 for roller bearings together is determined by placing the joint between a fixed member 10 and a movable member 11, moving member 11 towards member 10 to elastically compress with a predetermined force the components 2, 4 and measuring the change in length of the rivet as a result of the deformation of components 2, 4. Resilient laminations 18 provided on gauge 16 bear against the opposite ends of rivet 5 and the deformation of laminations 18 as a result of change in length of rivet 5 is detected by electric transducer strain gauges 19. <IMAGE>
Patent GB-2101212-A (GB)
Title: A reciprocating piston internal combustion engine having a liquid- cooled exhaust valve seat
Inventor: BITTERLI ALOIS
IPC: F01L3/18
Filed: 1982-07-02
Abstract: In the cylinder head (4) the exhaust valve seat (2) has an annular cooling chamber (6) fed from an annular coolant distribution chamber (12) via transfer passages (5) passing through a wall (17) separating the two chambers (6, 12). The transfer passages (5) are distributed all around the cooling chamber (6) and are inclined relatively to the radial direction so that a swirling turbulent flow is produced in the cooling chamber (6), such flow taking the form of a liquid ring which rotates symmetrically of the valve axis (18). The turbulence of the flow ensures a satisfactory heat exchange and the fact that the flow is rotationally symmetrical ensures a uniform temperature distribution around the valve seat avoiding the risk of unequal thermal expansion effects causing distortion and twisting of the valve seat (2). <IMAGE>
Patent GB-2105214-A (GB)
Title: Humidifier device
Inventor: CORNER LESLIE ROY
IPC: F22B1/28
Filed: 1982-08-18
Abstract: A humidifier device having a tubular casing 15 with end plugs 16, 17 containing two heater elements 18, 19 one above the other, the casing having an outlet slot 24 above the upper heater element 18 and water supply means including a solenoid operated valve 14 and a small bore tube 22, through which water is emitted as a fine jet into the chamber within the casing 15 above the lower heater element 19 and below the upper heater element 18. The water falls on the lower heater element 19 and is converted substantially immediately into steam and this then rises to be further heated by the upper heater element 18 before being emitted through the outlet slot 24. <IMAGE>
Patent GB-2109733-A (GB)
Title: Butt-welding apparatus
Inventor: LJUBOMIR SRNIC
IPC: B23K11/31
Filed: 1982-10-19
Abstract: Apparatus for butt-welding comprises a body (9), having a slideway therein of non-circular cross section, a first pair (10, 11) of hydraulic jaws mounted on the body (9) for gripping a first article (8') to be welded, a slide (20) adapted for accommodation in the slideway and adapted for sliding movement therein towards and away from the body, the slide (20) carrying a second pair of hydraulic jaws (10', 11') adapted for gripping a second article (8) to be welded, hydraulic means (23) for causing movement of the slide in the slideway to bring the said first and second articles into contact, and means (4) for supplying an electrical current to the said first and second pairs of jaws, and thereby to the said articles to be welded. <IMAGE>
Patent GB-2112543-A (GB)
Title: Objective refractor for the eye
Inventor: HUMPHREY WILLIAM EDWIN
IPC: G02B3/10
Filed: 1982-11-12
Abstract: An objective refractor for the eye E is disclosed in which knife-edge optics are utilized. The knife-edge optics cause characteristic illumination of the retina R so that components of sphere and astigmatism can be identified. Provision for remote reading of the characteristic images is provided with the result that two orthogonally disposed knife-edge images can identify the sphere, cylinder and axis required for prescriptive patterns giving the direction and magnitude of required prescriptive change. A system of at least two orthogonally disposed knife edges with weighted lighting is disclosed for detection. Utilization of the knife-edge images is made possible by the detection of the low light level images at a detector having low noise level. A photo-sensitive element divided into a plurality of photo-discrete segments has light from the images proportionally dispersed over its surface. Such dispersion occurs through a matrix of wedge-shaped segments or alternately in the form of optical elements having cylindrical components. This dispersion of the light when used in combination with push-pull knife-edge patterns herein disclosed produces detectable low level refractive signal. An embodiment using an optic having a plurality of side by side optic elements, each element having the effect of crossed cylinders, is disclosed with the detector. Separate independent and non-interactive positional information on one hand, and refractive information on the other hand, is provided. Consequently the disclosed refractor is insensitive to adjustment and can accommodate a large range of pupil configuration with insensitivity to local retinal variations in light emission. <IMAGE>
Patent GB-2132517-A (GB)
Title: Inserts for cutting tools
Inventor: HALE ALAN ARTHUR
IPC: B23B51/04
Filed: 1982-12-13
Abstract: An indexable insert 210 has two parallel asymmetrical side faces 220 and contiguous edge faces, cutting edges 212-219 being formed at the junction of at least one of the side faces 220 and each of the contiguous edge faces, the asymmetry being such that when in use in a drill the inserts cannot be incorrectly indexed in the drill, at least one of the asymmetrical side faces having asymmetrical chip breakers therein capable of providing strength at the corner 222, 226 of the insert. The insert may be rhombic or octagonal in shape. <IMAGE>
Patent GB-2116345-A (GB)
Title: Gaming or amusement with prizes machine
Inventor: CARTER ALBERT EDWARD
IPC: G07F17/32
Filed: 1983-01-21
Abstract: The invention concerns fruit machines and the like in which, generally one symbol on each drum, when stationary, is highlighted relative to the other symbols in view of the player. The highlighted symbols may be arranged to be those on the basis of which a prize is awarded. Alternatively or additionally the highlighting of one symbol may be replaced by the highlighting of other symbols in quick succession and payout based on the finally highlighted symbol, with or without further rotation of a drum of drums. <IMAGE>
Patent GB-2119206-A (GB)
Title: Dataset apparatus
Inventor: DODDS DAVID E
IPC: H04B3/28
Filed: 1983-02-25
Abstract: A dataset apparatus is powered by voltages extracted from the electrical signals passing between a data terminal apparatus and the dataset by circuits comprising capacitor and diode combinations. The dataset includes capacitors C9, C10, C11 which are charged through diodes D15, D17, D10, D11, D14 from the signals, including data and control signals, TXD, RTS, DTR from the data terminal and provide constant power supply voltages -Vee, +Vcc, +Vdd to the data set. Additional auxiliary power supply terminals may act through diodes D16, D12, D13. The data set transmitter includes two oscillators enabled by mark and space signals on the data input from the terminal. The receiver of the dataset includes a doubly balanced resistance bridge network connecting the transmission lines to a differential amplifier, the circuit being balanced such that signals from the transmitter and also common mode signals are not applied to the amplifier. <IMAGE>
Patent GB-2120141-A (GB)
Title: Vacuum workpiece holder
Inventor: WOOD KENNETH O
IPC: B25B11/00
Filed: 1983-05-16
Abstract: A workpiece holder includes an air-impermeable flexible sheet 14 for engaging a workpiece w and a means for pulling a portion of the sheet away from the workpiece to create a vacuum space or pocket which holds the workpiece to the holder. The workpiece holder may have a relatively large workpiece bearing surface 24 covered by the sheet 14 together with the ability to create a large number of vacuum spaces dispersed over the area of the bearing surface to allow the holder to be used with a wide range of workpiece sizes. The means for pulling the sheet away from the workpiece may be a vacuum source or a system of cranks and pull rods. <IMAGE>
Patent GB-2130173-A (GB)
Title: Bag mouth closure and method and apparatus for making the same
Inventor: PACE VINCENT CHARLES
IPC: B31B50/72
Filed: 1983-10-27
Abstract: The lips (2 and 3) of the mouth of a bag (1) project beyond a heat-seal band (6) closing the bag mouth end (7), and a stiffening patch (8) is bonded to the exterior of lip (2) between the heat-sealing band (6) and the bag mouth end (7). The patch (8) being foldable in two return bends for holding the bag mouth closed. The stiffening patches (8) for the reclosable bag mouth end (7) can be applied to a strip of sheet material for making bags at the time that the bags are formed and filled by clipping from a strip of patch-making material patch pieces (8) having pressure-sensitive adhesive on one side. Such patch pieces (8) are transferred from a clipper onto the bag-making material by a revolving transfer member having a suction pick-up to pick up a patch piece (8) and blowing means for subsequently detaching the patch piece (8) from the transfer member and depositing it onto the strip of bag- making material. <IMAGE>
Patent GB-2137596-A (GB)
Title: Sheet sorting device
Inventor: MATSUO KUZUHIRO
IPC: B65H39/11
Filed: 1984-02-24
Abstract: A sheet sorting device S in which sheets P are sorted with trays 41.....415 is being moved so that one of the trays, e.g. 44, corresponds to the sheet outlet 1,1 of an image forming apparatus C, is provided with a sheet conveying portion 14.....21 for causing sheets carried from the outlet 1,1 into the sheet sorting device S to be discharged out of the sheet sorting device S, thereby bypassing the device S and being passed into an adjacent sorting device S1 e.g. when the trays are full. <IMAGE>
Patent GB-2155406-A (GB)
Title: Ruler with holder
Inventor: WARWICKER CLIVE WALTER
IPC: B43K31/00
Filed: 1984-03-12
Abstract: A ruler 12 is provided on its front face with a holder 10 for holding small stationary items such as pens, pencils, erasers and pencil sharpeners. The holder 10 comprises a separate elongate plastics part extending centrally along the length of the ruler 12 and bonded in place. In includes a sleeve portion 18 with internal lugs 22a, 22b, (not shown) defining side-by-side channels adapted to accommodate therein a pen 24 and a pencil 26 which are held under a light clamping pressure, a raised bridge portion 35 which defines an open pocket to receive and hold an eraser, and a box-like housing 30 at one end which is adapted to receive and hold a pencil sharpener 32. <IMAGE>
Patent GB-2139257-A (GB)
Title: Jig for stitching fabric layers in a sewing machine
Inventor: GILL PETER R
IPC: D05B39/00
Filed: 1984-04-02
Abstract: A jig is for use in stitching together two layers of material on a stitching line defining a corner. The jig has a lower plate (1) having a slot (4) through which stitching may be effected, the slot including at least one corner. An upper plate cooperates with the lower plate and a fulling plate (3) is positioned between the lower and upper plates and has fulling means (6 to 8) on its upper surface for defining pleats in a fabric layer placed over the fulling means. At least one of the fulling means has an upstanding, pleat-forming member (11) which is positioned so that the pleat formed thereby extends towards the slot (4) at a line that intersects the slot at a location lying ahead of the associated corner (13). <IMAGE>
Patent GB-2162886-A (GB)
Title: Hook assembly
Inventor: BURALL DAVID CHARLES
IPC: A47G25/38
Filed: 1984-08-11
Abstract: A merchandise support assembly comprises a connection member 42 and a hook 44. Hook 44 comprises a hook member 54 upstanding from a pair of shoulder members 56, 58 with a notch 60 to receive and locate the sheet material of connection member 42, with the sheet material resting on the shoulder members. A second notch 62 is formed on the other side of the hook member 54. The notches serve to retain the connection member in position. <IMAGE>
Patent GB-2147146-A (GB)
Title: Contact mechanism for a circuit breaker
Inventor: SATO KAZUHIKO
IPC: H01H73/02
Filed: 1984-09-05
Abstract: A support member 4 is pivotally mounted at 4c and carries a contact 3. A spring 5 urges one end of the contact 3 away from the member 4 with a force component such as to maintain engagement between shoulders 3c and the member 4. Closing of the contacts causes engagement surfaces 4d to move around the pivot axis through 4c and move the support 3 laterally as well as downwardly giving a sliding, self-cleaning action between the contacts 2a, 3a. <IMAGE>
Patent GB-2166897-A (GB)
Title: Coin freed vending machine
Inventor: KETTERINGHAM TERENCE THOMAS
IPC: G07F11/20
Filed: 1984-09-25
Abstract: A multi-product coin freed vending machine with electro-mechanical operation particularly applicable to multi-column vending machines capable of releasing ten or more delivery slides or drawers with multiple products. The machine can be powered either by batteries or by mains power so as to provide the power to the solenoid which will in turn operate a mechanical release mechanism. The machine bed 11 (Fig. 2) has a number of delivery apertures 15. Packets are released one at a time by means of a pull bar 17, normally locked in position by blanks 22, associated with a particular column. To each of the pull bars is attached a push block 8 and when the pull bar is free to move it can be pulled back with its push block to allow a packet to drop into the frame and then pull bar is pushed inwardly to push the packet over the delivery aperture 15 from whence it drops into the base of the machine. The pull bars 17 are locked until released by a coin freed electromechanical device which releases appropriate locking blanks. <IMAGE>