baber/WOPTO huggingface dataset:
Patent GB-2089259-A (GB)
Title: Drive transmission for driving a spindleless rolling stand
IPC: B21B31/26
Filed: 1981-08-04
Abstract: A drive transmission for driving a spindleless rolling stand with a large adjusting range for the roller shafts 11, 12, and having roller shafts 11, 12 mounted in eccentric adjusting sleeves 15, 16, includes drive wheels 17, 18 on the shafts and driven by wheels 9, 10 with internal teeth. The meshing internal and external teeth accommodate adjustment of the shafts. The axes of the internally toothed wheels 9, 10 of the gear shafts 6, 8 are located eccentrically of the axes of the eccentric adjusting sleeves 15, 16 in the housing of the gearing case 3, the pitch circles of the drive wheels 17, 18 of the rollershafts 11, 12 being at a tangent to the pitch circles of the internally toothed wheels 9, 10 of the gear shafts 6, 8 over the entire adjusting range, and that the shifting of the axes is dependent on the roller displacements in the region of the teeth, resulting from the loads and clearances necessitated by the operation. <IMAGE>
Patent GB-2087407-A (GB)
Title: Bituminous compositions
IPC: C08L95/00
Filed: 1981-11-04
Abstract: Bituminous-compositions having good energy absorbing properties contain bitumen, hardened extract, finely divided particles of crosslinked non-thermoplastic rubber and a filler, the amount of finely divided particles of crosslinked non-thermoplastic rubber by weight being equal to or greater than the amount of filler by weight, and the bitumen being a rubberised bitumen in which the rubber is a non-thermoplastic copolymer of at least two mono alpha olefins and a cyclic olefin having an endocyclic bridge and at least two olefinic double bonds. The compositions can be formed into sheets or slabs using rubber compounding equipment and are suitable for use as safety surfaces e.g. children's playgrounds.
Patent GB-2089560-A (GB)
Title: Method and Apparatus for Adjusting, Operating and Cooling Lasers
IPC: H01S3/03
Filed: 1981-11-04
Abstract: The mirrors of a laser tube are adjusted by securing at least one end 16 of the laser tube 10 to a fixed support 21, and applying a force to the laser tube at a location spaced from its secured end by a distance of at least one-half the tube length. Two (or four) orthogonal screws 51 are used to apply the force. The tube may be secured at both ends with screws acting at its centre. The laser tube is thus gradually bent from the secured end(s) such as to effect the adjustment of the mirrors with respect to the laser tube axis. The described laser tube is enclosed in a metal cylindrical sleeve which distributes heat uniformly around the tube to minimize thermal bending during the operation of the tube. In addition, the described tube includes two cathodes at its opposite ends, and two anodes at intermediate portions thereof, both of the cathodes being grounded and being cooled by a common cooling medium. <IMAGE>
Patent GB-2090409-A (GB)
Title: Method of seismic exploration
IPC: G01V1/30
Filed: 1981-11-09
Abstract: In seismic exploration, the amplitude of the gathered CDP traces representing a reflection anomaly is plotted as a function of offset. The plotted contours (upper part of Figure) are displayed contigously with the portion 24 of the seismic section having an anomalous reflections. The patterns of the contours distinguish the various types of anomalous reflections. Anomalous amplitude contours caused by variations in reflection coefficients, such as a hydrocarbon indicator, lie along slanted CDP lines on the contour plot, whereas anomalies caused by other factors, e.g. source strength or receiver channel variations, have different patterns. <IMAGE>
Patent GB-2091181-A (GB)
Title: Power steering apparatus
IPC: B62D5/083
Filed: 1981-12-17
Abstract: A control valve of rotary type controls a flow of hydraulic fluid by relative rotational displacement between a pair of elements (13, 14) of the valve. A C-shaped spring (12) preloads the elements to a neutral position and is resiliently deformed upon movement of the elements from that neutral position. The spring is displaced only in a plane perpendicular to the rotary valve axis, and is constrained against movement out of that plane. In one form, this is achieved by transmitting the spring load through projections consisting of a pair of projections (11, 17) rotatable with one of the valve elements and a further projection (10) rotatable with the other of said elements and disposed axially intermediate said pair of projections. By such means the gap opened by the increasing diameter of the spring as it is deformed does not interfere with the accurate and reliable return of the valve to the neutral position. In another form, the spring is constrained between a snap ring and a shoulder on the valve element 14. <IMAGE>
Patent GB-2106947-A (GB)
Title: Pre-stressed structural member
Inventor: BEHAR ABRAHAM
IPC: E04C3/26
Filed: 1981-12-23
Abstract: In order to prevent radial expansion and axial retraction of the pre-stressing steel 4 in a body of cast concrete A when the tension in the steel is released, a generally cylindrical barrel 20 containing a wedge 26 is permanently fitted on the steel adjacent to the surface B of the concrete body. The wedge 26 has an external frusto-conical surface 28 converging towards the body of concrete, which engages an internal frusto-conical surface 24 of the barrel 20, and an internal cylindrical surface 30 which grips the steel. Adjustable means such as a nut 36 is provided engaging the wedge 26 and the barrel 20 to prevent relative movement between them after the release of tension in the steel 4. The wedge and barrel assembly may alternatively be positioned within a recess in the surface of the cast body and may be attached to a plate in surface-to-surface engagement with the body. <IMAGE>
Patent GB-2097910-A (GB)
Title: Insert for placement in vessel
IPC: F28F13/12
Filed: 1982-03-19
Abstract: A method of making an insert comprising an elongate core (11) having a plurality of loops (14) disposed longitudinally therealong and angularly thereabout by taking such an insert wherein a portion of each loop lies in close proximity to a first conceptual enveloping surface and deforming the loops or displacing the loops so as to be inclined to the longitudinal axis of the core so that a greater proportion of each loop periphery is in close proximity to a second conceptual surface of smaller cross-section than said first surface. Also disclosed are inserts made in the above way and vessels incorporating such inserts. <IMAGE>
Patent GB-2098294-A (GB)
Title: Brake master cylinder
IPC: B60T11/22
Filed: 1982-04-16
Abstract: The master cylinder piston (3) in the master cylinder of a hydraulically- actuated motor vehicle brake includes in its front wall a compensating bore (18) communicating with the piston rear side and adapted to be closed by a valve body (14) movable relative to the master cylinder piston (3). The valve body (14) is provided at the end of a central stem member (11) connecting the two spring collars (8, 10) of a piston return spring (9) of the master cylinder piston (3). The valve body (14) is urged by spring 20 against the compensating bore (18) as soon as the piston return spring (9) is loaded in compression. <IMAGE>
Patent GB-2110163-A (GB)
Title: Computer keyboard elements
Inventor: STONIER TOM
IPC: H01H13/84
Filed: 1982-05-17
Abstract: A keyboard element for a computer has a plurality of individual key areas grouped together into blocks. A first block 1 contains alphabetical key areas, a second block 2 contains numerical key areas and a third block 3 contains computer instruction key areas. No key in any one of these blocks is duplicated in any other block and each block has a characteristic colour tone different from that of any other block and is spatially separate from any other block. Additional blocks may contain punctuation control keys (4) mathematical control keys (5) and graphics control keys (6). <IMAGE>
Patent GB-2098941-A (GB)
Title: Sun visor for motor vehicles
IPC: B60J3/02
Filed: 1982-05-18
Abstract: The sun visor (10) comprises at least one portion (15) coupled to the sun visor body (11) by means of resilient foils (17) cooperating with spaces (18), and articulated in an elastically yielding manner to fit the flat profile of the sun visor (10) against the roof panel profile when the visor is brought to its home position adjacent the undersurface of the roof panel. <IMAGE>
Patent GB-2325120-A (GB)
Title: Communications systems
Inventor: RIGDEN CHRISTOPHER JAMES
IPC: H04L5/12
Filed: 1982-06-09
Abstract: A slow data rate digital communications signal (2) is multiplexed with a two-tone frequency shift keyed (FSK) primary communications signal (1) by modulation of at least one of the FSK frequencies. Preferably, the slow data channel operates at a frequency of 1 baud and modulates the primary signal by applying a 1 Hz frequency shift to both tones of the primary signal. In the transmitter a reference frequency signal (3) is applied to a frequency synthesiser (7-10, 15) to produce the four frequencies required, and to provide the necessary signals for timing gates (13, 14) to ensure that the slow data is added to the primary data with phase coherence. The receiver (fig. 2, not shown) includes a local oscillator (21) tuned to one of the two primary communications tones. After detection (16-19) the received signals and the locally generated signal are compared in a phase comparator (20) and then filtered (22) to separate the two communications channels (24, 25).
Patent GB-2110805-A (GB)
Title: Container for cooling liquids, particularly wine
Inventor: ROBINS DENNIS RAYMOND
IPC: F25D9/00
Filed: 1982-06-14
Abstract: An outer container for housing a bag-in-a-box wine container (20) comprises a barrel-shaped container (10) adapted to stand on end, an upper section (16) of the barrel being removable from the lower section (12) to allow access to a hollow interior. In use, the bag-in-a-box container (20) is located within the lower section (12) standing on a platform, with the tap of the wine container protruding through an aperture (18) in the wall of the lower section (12) so that wine from the box in the barrel can be drawn off. A gap is present between the wall of the box (20) and the interior of the lower barrel section (12), and this may be used for chilling means, eg to chill or maintain chilled white wine. In simple embodiments ice or chilled packs may be located in the gap. Alternatively, cooling apparatus may be incorporated in the container, or a chilling tank may be employed for receiving chilled fluid from external chilling means. <IMAGE>
Patent GB-2103394-A (GB)
Title: A device for controlling the tension in a strip of sheet material, particularly for rotary printing presses
Inventor: MOLINATTO BRUNO
IPC: B65H23/188
Filed: 1982-07-16
Abstract: A device (1) for controlling the tension of a strip (2) of sheet material, particularly for a rotary printing press, in which the tension of the said strip (2) is controlled by continuously detecting by means of a sensor (11), the deflection of a cantilevered pin (4) connected so as to project from a fixed support (16) and rotatably supporting a cylinder (3) about which the strip (2) is wound. In operation a change in the tension changes the deflection of the pin (4). This is detected by the sensor (11) the signal from which is compared in the comparator (12) with the constant signal from the signal generator (13) and the resultant signal controls operation of the driving motor (9). <IMAGE>
Patent GB-2111937-A (GB)
Title: A bag holder
Inventor: REED WILLIAM JOSEPH
IPC: B65B67/12
Filed: 1982-09-03
Abstract: A bag holder comprises a supporting member 7 for holding a roll of plastics refuse bags and supporting the bottom of the bag to be loaded at one end of the roll, and an upper ring member 1 for holding said bag in an open and upright position, the two members being separate so that they can be secured at spaced apart positions corresponding to the bag's length. The holder member 1 carries a lid 5 by means of which the open end of the bag may be covered, and comprises two components 2, 3 spring loaded in such a direction as to hold open the mouth of the bag, the components 2, 3 being relatively moveable against the spring loading to facilitate bag removal and replacement. <IMAGE>
Patent GB-2108711-A (GB)
Title: Apparatus for the proportional transfer of a variable sector of one image to an image of smaller format
Inventor: RIEHLE HARALD
IPC: G03B27/58
Filed: 1982-10-20
Abstract: An apparatus is described, with the aid of which the sector of a negative corresponding to a particular sector of a photograph can be accurately located. For this purpose, four sliders (3-6) are provided on a base plate (8) on which zones (9, 10) are provided for the photograph and for the negative; the sliders are disposed above the photograph and above the negative. These sliders have openings (11-17) which are disposed such that when one edge of the opening is displaced over the photograph, another edge also moves over the negative. The two edges form an angle with one another such that the displacement is effected proportionally, the photograph and the negative also being disposed at this angle on the base plate. As the opening sizes are adjusted in the same ratio when the area of the photograph required for reproduction is framed, the corresponding area of the negative appears in the second opening and can be marked.   <IMAGE>
Patent GB-2115513-A (GB)
Title: Controlling electromagnetic clutch of vehicle
Inventor: SAKAKIYAMA RYUZO
IPC: G03G5/08
Filed: 1983-01-25
Abstract: A system for controlling stall speed for an electromagnetic clutch having a magnetizing coil for engaging a crankshaft of an internal combustion engine with an input shaft of a transmission of a vehicle. A transistor switching circuit for allowing clutch current to flow through the magnetizing coil, and an electric circuit for producing pulses dependent on ignition pulses of the engine are provided for intermittently turning on the transistor for energizing the coil. A circuit including a time constant circuit and a switching transistor is provided for decreasing duty ratio of the pulses and for decreasing the clutch current. Switches are provided for detecting a heavy load condition at starting of the vehicle and for producing an output signal. The output signal is latched by a flip-flop and applied to the switching transistor thereby to decrease the duty ratio of the pulses for decreasing the clutch current with respect to the engine speed.
Patent GB-2114517-A (GB)
Title: Tipping vehicles
Inventor: NEVILLE MICHAEL DOUGLAS
IPC: B60P1/16
Filed: 1983-02-14
Abstract: The vehicle has a body (17) capable of being swung through 90 DEG  by a turntable (14) to extend laterally of the centreline of the vehicle. The body can be tipped in this position. This effectively moves the centre of gravity of the body from a central position to a position spaced from the centreline. To maintain stability compensating sideways movement of the body is effected as the body is tipped, so that the centre of gravity remains near the centreline, as shown at 19e. <IMAGE>
Patent GB-2136043-A (GB)
Title: Bucket holder
Inventor: BROWN PETER ALAN
IPC: F16B7/22
Filed: 1983-02-16
Abstract: A bucket holder for removably mounting a bucket 38 on a gate, sheep hurdle or similar barred support structure having a U-shaped bucket holding portion 14, and two feet 24 joined to and extending at an acute angle from the bucket holding portion, the feet being configured to hook onto a horizontal bar of the support structure so that the bucket holding portion can be positioned projecting outwardly from the structure to receive a bucket therein. <IMAGE>
Patent GB-2115509-A (GB)
Title: Equipment comprising a mobile container and inlet coupling therefor
Inventor: VAN DER LELY CORNELIS
IPC: F16L37/58
Filed: 1983-02-28
Abstract: A slurry spreader (1) has an inlet pipe (23) for connection to a feed pipe (45) so that slurry from a slurry pit (48) can be drawn into the tank (2) by suction. A coupling member (27) is adapted to make sealing engagement with a connecting plate (46) when the spreader (1) is reversed towards the feed pipe (45). The suction in the tank (2) serves to hold the coupling member (27) in engagement with the plate (46). The coupling member (27) is flexible and so can tolerate misalignment of the pipes (23, 45). <IMAGE>
Patent GB-2136184-A (GB)
Title: Advertisement and/or sign device
Inventor: MATTHEWS RONALD FRANCIS
IPC: G09F1/04
Filed: 1983-03-02
Abstract: An advertisement and/or sign device comprises a single integral sheet 10 of material divided by two fold lines parallel to each other into three panels, such that either side panel 19 or 20 can be folded against the central panel 21 to show printed matter at 11 or 12 through a window ABCDE of the middle panel. The sheet 10 may be of transparent P.V.C. or of opaque material with a cut-out window. The side panels 19, 20 may display alternative advertisements 11, 12 with the "open" or "closed" sign. <IMAGE>
Patent GB-2116138-A (GB)
Title: Turbular conveyor system and operating method
Inventor: MINOVITCH MICHAEL ANDREW
IPC: B65G15/60
Filed: 1983-03-03
Abstract: In an enclosed tubular continuous mechanical conveying system for transporting bulk material or passengers along straight, curved or twisting paths the conveying medium is a moving endless flexible toroidal surface (42) that is elongated along the direction of motion. The inner surface (30) of the toroid forms a moving enclosed duct that comprises the carrying portion of the surface while the outer portion (32) forms another duct that moves in the opposite direction, encloses the inner duct, and comprises the return run of the surface. A rigid, duct-like structure (36) is mounted inside the moving surface to maintain its shape. The surface (42) is preferably of elastic material to enable it to move around the rigid inner duct (36) without tearing, and is preferably mounted inside a rigid protective outer duct (48) enclosing the conveyor. The carrying surface can be supported by a cushion of air trapped inside the toroidal surface or by a magnetic suspension system or by a slider-bed or roller-bed suspension system attached to the rigid inner duct (36). <IMAGE>
Patent GB-2130470-A (GB)
Title: Ear-protection device
Inventor: SCHIESS HANS-RUDOLF
IPC: A61F11/14
Filed: 1983-09-07
Abstract: An ear-protection device intended tended to be worn like a pair of headphones comprises ear covering members (4) having annular cushions (11) to engage the wearer's head around the ears. The cushions (11) are carried by separate ring members (6) which are rotatably mounted on the ear covering members (4) to enable the headband (1) to be swung back. The ring members (6) and cushions (11) are oval in shape. The ear covering members are pivotally mounted on pins (5) in stirrup-pieces (2) adjustable up and down in relation to the headband (1). <IMAGE>
Patent GB-2138634-A (GB)
Title: PC-Board Mounted Thermal Switch
Inventor: MERCHANT DONALD K
IPC: H01H73/22
Filed: 1983-09-26
Abstract: A PC-board mounted thermal switch that opens with a snap action includes a bimetallic element 30, connected to a load terminal 6 and resting on an insulated sawtooth surface 36 when contacts 28, 38 are in the closed position. A contact blade 20 connected to a line terminal 4 is pivotably biased downward into electrical contact with the bimetallic element by the action of an overcenter spring 26. An overcurrent through the breaker heats the bimetallic element 30 directly and causes it to bend upwardly, forcing the contact blade 20 to pivot against the bias of the spring. When the contact blade has pivoted sufficiently to move the spring overcenter, the direction of spring bias reverses, pivoting the contact blade rapidly upward, and thereby opening the contacts with a snap action. <IMAGE>
Patent GB-2146741-A (GB)
Title: Valve apparatus
Inventor: HOOD LEROY E
IPC: G01N35/00
Filed: 1983-12-14
Abstract: Valve apparatus for use in an apparatus for the sequential performance of chemical processes to control the flow of fluids therein comprising a valve block 24 having a plurality of substantially flat valving sites 230 each covered by a resilient, substantially impermeable diaphragm actuable to provide selective control of fluid flow between a primary passage 220 and a plurality of secondary passages 236 in said valve block. <IMAGE>
Patent GB-2153403-A (GB)
Title: Adjustable fence post support
Inventor: PROFFITT MICHAEL ANTHONY
IPC: E04H12/22
Filed: 1983-12-21
Abstract: The support comprises a spike 1 of L cross section formed by elongate planar walls 2, 3, and a support member 4 incorporating square bottom element 5 and two planar side-wall elements 6, 7 interconnected with two adjacent edges of the bottom element to extend perpendicularly thereto and to each other, the side-wall elements being spaced from each other. The bottom element is along its other two adjacent edges firmly connected perpendicularly to spike walls 2, 3, thus forming an upward-open box for receiving a post of square cross-section. The side walls formed by the side-wall elements are flexible for adaptation to oversized or undersized posts. <IMAGE>
Patent GB-2154150-A (GB)
Title: Punch/kick practice pad
Inventor: HIGO ANTHONY
IPC: A63B69/00
Filed: 1984-02-17
Abstract: A striking pad or use in practising martial arts is in the form of a sleeve 7 of shock absorbent material having a closed end and a handle 8 inside to enable the pad to be held over the hand and forearm. Extra padding 9 is provided inside the sleeve and the latter has a strong outer covering. <IMAGE>
Patent GB-2136571-A (GB)
Title: Instrument for discriminating peripheral thicknesses of lens
Inventor: TSUKAMOTO KEN
IPC: G02C13/00
Filed: 1984-04-27
Abstract: An instrument for discriminating peripheral thicknesses of lenses comprises a plurality of plates 3a to 3i each having a different thickness and supporting members 1 and 2, by means of which, before finishing of the edge of a lens, the thickness that the periphery of the lens will have after processing can be first determined from data tables provided on the members 1, 2 and can then be actually felt and seen on the plates 3a to 3i. <IMAGE>
Patent GB-2156793-A (GB)
Title: Magnesium oxide production
Inventor: CANTERFORD JOHN HARMSWORTH
IPC: C01F5/06
Filed: 1984-04-02
Abstract: A process for preparing substantially pure magnesium oxide from crude magnesium-containing compounds which have an iron impurity sufficiently low to be removable by selection of the process conditions, characterised in that the process comprises calcining the crude magnesium-containing compounds to crude magnesium oxide, forming a slurry of the crude magnesium oxide and treating the slurry with carbon dioxide to convert at least part of the magnesium content of the slurry into magnesium bicarbonate, said treatment being carried out at a temperature of from 25-50 DEG C, and at a pulp density selected to permit maximum magnesium extraction with minimum iron extraction (e.g. 2-30 wt% solids), removing the unreacted solid from the magnesium bicarbonate solution so produced, air sparging and/or heating the solution after clarification to produce a precipitate of hydrated magnesium carbonate and/or basic magnesium carbonate, separating the precipitate and decomposing it to produce substantially pure magnesium oxide. <IMAGE>