baber/WOPTO huggingface dataset:
Patent GB-2076533-A (GB)
Title: Mask Analysis
IPC: G03F1/00
Filed: 1980-05-20
Abstract: Masks 10 used in the production of integrated circuits, each mask 10 comprising substantially identical dies arranged in rows (x-direction) and columns (y-direction), are analyzed and tested by a scanning spot from a laser beam 15 comparing the position signal of the scan from a die against a data base representing another die which may be selected at random. Apparatus includes a laser 12, means 14 to form and scan a minute spot from said laser, an x-y stage 11 to move a mask 10 under the scan, a detector, and means 18 to compare scan results. Preferably the scanning means 14 sweeps the beam 15 in the x-direction over at least a portion of the width of one die, while the stage 11 advances the mask 10 in the y- direction so that scanning is repeated in parallel x-bands over the column. Then the stage 11 steps the mask 10 in the x-direction to allow the next column to be similarly scanned. <IMAGE>
Patent GB-2054852-A (GB)
Title: Vibration detector
IPC: G01H1/00
Filed: 1980-06-06
Abstract: In a system arranged to detect vibrations in a rotary machine, a signal 1 corresponding to vibrations produced by non-rotating parts of the machine is applied to a commutating filter, such as that shown in Fig. 3, together with a commutating signal 10 derived from a rotational part of the machine. The device is particularly suitable for use in detecting vibration levels in rotary systems operating at various outputs. <IMAGE>
Patent GB-2195423-A (GB)
Title: Apparatus for charging a tilting furnace
Inventor: DORIATH JEAN-CLAUDE
IPC: F27B14/16
Filed: 1980-06-25
Abstract: A loading and unloading apparatus for a tilting smelting furnace with a removable crucible, comprising a scoop (11) in the form of a trough of having a circular section, of diminishing extent from one end to the other, intended for the introduction of the crucible (C) and a compact, cylindrical, smelting charge or ingot (L) into the furnace when this is tilted into the horizontal position and means for both axial and rotary movement of the scoop. The scoop (11) has an internal section radius at least equal to half the diameter of the charge (L) so as to be able to support the latter, whereupon the scoop may be inserted into the crucible (C) prior to the transfer of both the charge and crucible through an air lock (20) into the furnace. Upon rotating the scoop (11) through 180 DEG  and then withdrawing it, the crucible (C) containing the charge (L) is deposited within the furnace. 
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Patent GB-2061658-A (GB)
Title: Earth probing radar system
IPC: G01V3/12
Filed: 1980-08-07
Abstract: The method and apparatus look in advance of coal mining activity to provide a visual display of a coal seam and particular discontinuities that may lie therein. The radar method operates in the frequency range of 10 Megahertz to 5 Gigahertz and employs received signal- processing, both analog and digital, which aims to reduce problems inherent with source coherent noise or interference as well as random noise. The received electromagnetic energy is amplified, sampled and band pass filtered with subsequent time gain amplification thereafter, a time analog return signal may be viewed directly and/or the return signal may be digitally processed to enable further signal refinement. A control microprocessor is utilized for both tape record control and digital signal processing, and the processor includes the capability for compositing and/or stacking of common source point data for output record and display. <IMAGE>
Patent GB-2057828-A (GB)
Title: Furnace electrode assembly
IPC: H05B3/03
Filed: 1980-08-22
Abstract: Where an electrode 4, for example of molybdenum, is located in an aperture 3 of a furnace wall 1 for feeding current to molten material 2, e.g. glass, within the furnace, hot parts of the electrode 4 which are exposed to air are apt to corrode. Such corrosion may be substantially prevented by surrounding the electrode 4 with a sleeve 5 formed from one or more refractory oxygen- containing compounds (e.g. of the system Al2O3-ZrO2-SiO2). A bush 19 is sealingly fitted to the electrode 4, and a seal is provided between the bush 19 and the sleeve 5 which is independent of the furnace wall 1 so that cracks or porosity in the furnace wall do not affect sealing of the space 16 between the sleeve 5 and the electrode 4. <IMAGE>
Patent GB-2066506-A (GB)
Title: Strobe housing attachment
IPC: G03B15/05
Filed: 1980-12-04
Abstract: A strobe housing (10), which is adapted to be attached to a plurality of different camera configurations, has a bottom surface with a tapered central platform (20) for aligning the flash pattern when a male connector (12) on the bottom surface is inserted into a female connector on the camera. The bottom surface has two pivotal clips (14, 15) located on either side, with the male connector (12) in between. The clips (14, 15) are pivotal in an extended position where they coact with flanges on the side surfaces of one type of camera. In a retracted position, the clips coact with a front flange on another camera type, and in the retracted position are also used as supports with still another camera configuration. The platform (20), clips (14, 15) and connector (12) being all on the bottom surface of the strobe housing enables one to attach the unit to a wide variety of different camera bodies. <IMAGE>
Patent GB-2089324-A (GB)
Title: Transport and storage containers
IPC: B65D90/08
Filed: 1980-12-15
Abstract: A portable container, particularly suitable for use as a storage box on a building site, comprises side walls 10, a back wall 11, an access opening and a door for closing the access opening, a floor panel 13 and a roof panel 14. At least one of the walls 10 is constituted by a metal panel which extends substantially throughout the height of the wall and which is rigidly secured at its upper end directly to the roof panel 14. <IMAGE>
Patent GB-2068908-A (GB)
Title: Preventing double sheet feed to facsimile apparatus
IPC: B65H3/52
Filed: 1981-02-11
Abstract: A facsimile apparatus has a sheet feeding capability to supply sheets of documents and/or copy paper to a rotatable scanning drum 10, one sheet feed path being via a nip roller pair, one roller 42 of which rotates faster than the other 44 in order to separate superimposed sheets. <IMAGE>
Patent GB-2069385-A (GB)
Title: Drop hammers for pile driving
IPC: E02D13/00
Filed: 1981-02-12
Abstract: A drop hammer for pile driving comprises a main weight 10 having a lifting member attached thereto, steel support members 15 extending downwardly from the weight, and timber skirt members 24 connected to the support members and defining an open bottomed slot 25 extending downwardly from the weight for the receipt of an upper portion of one or more piles to be driven. The skirt members 24 not only guide the drop hammer during its up and down movement on the piles, but also serve as baffles to absorb the sound generated by impact of the main weight on the piles. The skirt members are detachable so that they may be selected according to the shape of the piles. <IMAGE>
Patent GB-2073496-A (GB)
Title: Rotary switch
IPC: H01H9/00
Filed: 1979-03-12
Abstract: This invention relates to a tandem rotary switch for use with a transformer having a primary or secondary winding subassembly which consists of at least one pair of tapped windings each having an equal number of tapped sections. The switch selectively interconnects tapped sections of the winding pairs from a position where the windings are in parallel through positions in which they are in series/parallel to a position where they are in series. As shown a shaft 170 carries wipers A and B contacting contact-terminals 101-118 on upper and lower halves of a support, these halves being associated with separate windings. A similar arrangement has wipers C and D associated with contact terminals 119-136. A modified arrangement is disclosed, Figures 5-11 not shown. <IMAGE>
Patent GB-2076530-A (GB)
Title: A High Frequency Heating Appliance
IPC: F24C7/02
Filed: 1981-05-14
Abstract: A high frequency heating appliance comprises in its main body a heating chamber (10), a high frequency oscillator (14), a hot air circulating fan (12), a door (6) for opening and closing an access opening in the front wall of the heating chamber (10) and a gasket (19), interposed between surface portions of the front wall which surround the access opening, and the door (6) to reduce leakage of heat and high frequency radiation. The gasket (6) comprises an interwoven mixture of heatproof dielectric fibre (20), such as glass fibre, and fibrous corrosion- resistant metal (21) such as fibrous stainless steel. <IMAGE>
Patent GB-2104753-A (GB)
Title: Radars
Inventor: ROTHERAM STEPHEN
IPC: G01S13/90
Filed: 1981-07-02
Abstract: A surface imaging radar produces a two dimensional image pattern representing the earth's surface. Radar echo signals are processed to generate an image which represents the unwrapped phase for each point in the two dimensional pattern. The term unwrapped phase of a signal is its true phase value relative to some reference and includes multiples of 2??? in addition to the principal phase value. The unwrapped phase value can be obtained from the phase derivative of radar echo signals. This enables information on the nature of the surface, as well as its position, to be derived.
Patent GB-2103070-A (GB)
Title: Curtain eyelet
Inventor: ROBLES FRANCISCO INSUA
IPC: A47H13/14
Filed: 1981-07-02
Abstract: A curtain suspension and pleat retaining arrangement comprises a first ring or eyelet suitable for direct sliding motion on a pole or the like and attachable to the material at the head of a curtain, and a second ring or eyelet likewise attachable at a location further along the curtain head, the first ring including apertured projections mutually diametrally opposed and on the side intended to face away from the curtain material, and the second ring including the projections mutually diametrally opposed and on the side intended to face away from the curtain material, the tines being engageable in the apertures to hold the rings in face to face contact. <IMAGE>
Patent GB-2105952-A (GB)
Title: Antitheft label
Inventor: MEHLMAN SAMUEL JOSEPH
IPC: H01L27/01
Filed: 1981-08-11
Abstract: An antitheft label incorporates an insulating substrate 1, which can be flexible or rigid plastic, cloth or paper, carrying a tuned circuit conductor pattern 2, 2a with a loop 3. The loop has a gap 4 bridged by a diode chip 5. The loop conductor is formed with a short section 6 of reduced cross section, such that the label responds in the conventional manner in a weak r.f. field, e.g in a shop doorway, but when placed in a strong field, e.g. adjacent a cash register, the section 6 acts as a fusible link and is ruptured. <IMAGE>
Patent GB-2082226-A (GB)
Title: A pole arrangement for electric power
IPC: E04H12/22
Filed: 1980-02-26
Abstract: Reinforcement of existing, erected poles for electric power or telecommunication applications, in order to increase the strength of the pole. Reinforcing elements (2) are arranged at places along the outer surface of the pole, optionally with bias tension, and are fixed secured at one or more places (3, 4) along the pole (1) thereto. The reinforcing elements can also extend down into the ground along the pole.
Patent GB-2086302-A (GB)
Title: Prefill Valve System
IPC: B29C45/67
Filed: 1981-10-23
Abstract: In a prefill valve system wherein a ram (not shown) slides in a main cylinder 1 to close a mould, fluid is initially supplied to a cavity in the ram through a booster tube (2) supported at its fixed end (3) in a back plate (4). The supply to the cavity produces a rapid advance of the ram during mould closure. A prefill valve sleeve (7) surrounding the booster tube, allows low pressure fluid to enter the cylinder through a port 6 during such rapid advance. A plurality of hollows pistons (13) for closing the valve sleeve (7) are fixed in the back plate (4) or prefill valve (7) respectively and extend substantially parallel with the booster tube into cylindrical chambers (14) in the prefill valve or back plate respectively. The back plate (4) has a passage (12) for passing fluid, to be fed to the booster tube, additionally to the hollow pistons, and the hollow pistons have ports (16) to allow fluid to pass into the main chamber (1) when the ports are uncovered after sufficient movement of the prefill valve, to enable high pressure fluid fed to the booster tube to be applied via a fluid passage 18 and the cylinder 1 to the ram to hold the mould closed. <IMAGE>
Patent GB-2086599-A (GB)
Title: Treatment of an exposed photographic film to increase the effective speed thereof
IPC: G03C5/42
Filed: 1979-08-01
Abstract: The invention provides a process of treating an exposed black-and-white or colour film to increase the effective speed thereof, comprising: developing and fixing the black-and-white reduced silver image, re-developing the film in a colour-coupling developer in the presence of colour-coupling dye units and replacing the silver in the image with the colour dye units to provide an enhanced colour image. The process enables the effective speed of exposed photographic film to be greatly increased with minimal sacrifice of quality and exposure latitude and with very substantial boosting or amplification of threshold image-recording near the toe of the density versus log of exposure characteristic curve.
Patent GB-2091226-A (GB)
Title: Inserting fresh winding tube in winding machine
IPC: B65H19/22
Filed: 1982-01-11
Abstract: During replacement of a full reel (15) in a winding machine, the fresh tube (13) is inserted in the opposite direction to the ejection path of the full reel (15). The full reel (15) is ejected by pivoted pusher (1) moving clockwise around supporting roller (3). The fresh tube (13) is inserted by arm (11) pivoting anticlockwise around supporting roller (10) and engages the web. Cutter (20) on the pusher (1) then severs the web, a pressure roller is lowered onto the fresh tube (13) and winding re-commences. The web can be attached to the fresh tube (13) by an adhesive strip. <IMAGE>
Patent GB-2097816-A (GB)
Title: Impregnating leather
IPC: C08G18/08
Filed: 1982-05-04
Abstract: A leather sheet is impregnated with an aqueous ionic dispersion of a polyurethane polymer, the polymer ionically coagulated, and the impregnated leather sheet dried to form an impregnated leather composite.
Patent GB-2122702-A (GB)
Title: Steplessly-variable friction gearing
Inventor: LEE GEORGE
IPC: F16H15/14
Filed: 1982-06-24
Abstract: In a steplessly-variable friction drive comprising an input disc 2 which drives an output disc 3 through a displaceable rotating assembly 8, 9, 10, a cam and roller device 14 and 15 which generates a torque-dependent contact pressure is subject to a continuous oscillation to remove the possibility of brinelling or fretting therein. This oscillation is caused by a further cam and roller arrangement between the parts 9 and 10 of the assembly, the part 9 being driven by the part 10 through gearing 17, 18, 19, 20 such that there is a small speed difference between them. <IMAGE>
Patent GB-2098509-A (GB)
Title: Electric filter
IPC: B03C3/78
Filed: 1981-07-06
Abstract: An electric filter has a chamber or case (1), through which the air or other gas to be cleaned is directed by means of a fan (4). An ionisation device has been arranged for the gas to be cleaned, the device consisting of one or several ionisation electrodes (9) and counter electrodes (10). An electrostatic field is formed by positive and negative electrodes (13, 14), of which the plate-like collector electrodes (14) are at least partly of glass or corresponding material and on which there tend to accumulate from the air or other gas to be cleaned the impurity particles which have received a charge from the ionisation device. There acts as the collection electrodes (14) a water film continuously flowing over a plate made of glass or material reacting to water in the same fashion as glass. Thus the dry and solid particles such as quartz or carbon dust contained in the gas to be cleaned are carried along with the water film without rebounding from the electrodes in exchanging their original charge for a charge with the same sign as that of the collection electrodes. In the direction of the upper edge of the solid plates of the collection electrodes (14) there are arranged for directing a water current to the plate water leading parts, for example pipes (15) having small holes or longitudinal apertures for a water current.
Patent GB-2104890-A (GB)
Title: Pyridinecarbinols, their preparation and fungicides containing them
Inventor: AMMERMANN EBERHARD
IPC: C07D213/30
Filed: 1982-07-07
Abstract: Pyridinecarbinols of the formula    <IMAGE>  I  where R1 is hydrogen or alkyl, R2 is alkyl or alkenyl, and R3, R4 and R5 are hydrogen, chlorine, bromine, fluorine or alkyl, plant-physiologically tolerated addition salts of these compounds with acids, and fungicides containing these compounds.
Patent GB-2123070-A (GB)
Title: Lockable door latch
Inventor: JAMES MICHAEL JOSEPH
IPC: E05B65/00
Filed: 1982-07-08
Abstract: The door latch assembly comprises a handle 3 rotatably mounted in a handleplate 1 and a locking member 4 in the form of a rocker 4. The rocker 4 is mounted in an aperture 5 in the handleplate 1 so as to be externally accessible for pivotal movement between an operative locking position, in which it engages in a peripheral recess 21 in a handle-mounting flange 7, and an inoperative position in which it is clear of the flange 7. When in the locking position the rocker 4 engages an undercut end face 22, Fig. 10, in the recess 21 to block movement of the handle 3 in the latch-release direction. At the other end the recess 21 has a cam face 24 which, when the handle 3 is turned in the opposite direction with the rocker 4 in the locked position, engages the rocker 4 and displaces it to the inoperative position. <IMAGE>
Patent GB-2105203-A (GB)
Title: Throwing machine for squash balls
Inventor: RICHTER ERICK KLAUS
IPC: A63B47/00
Filed: 1982-09-03
Abstract: A transport mechanism 15 conveys balls from a storage container 6 to a firing device 5. A heater device 8 is associated with the transport mechanism and/or with the storage container so that the squash balls are fired at playing temperature. The firing device has a firing channel 18 which is bounded on one side by the surface 21 of a wooden centrifugal wheel, and on the opposite side by a rigidly arranged firing surface 20 consisting of a hard and smooth material (metal), whilst the minimum interval between the envelope surface and the firing surface is substantially shorter than the diameter of a squash ball. <IMAGE>
Patent GB-2127041-A (GB)
Title: Controlled graphite formation in cast iron
Inventor: MOORE WILLIAM H
IPC: C21C1/10
Filed: 1982-09-16
Abstract: The molten iron is initially treated with an excess of nodularising agent, particularly magnesium, and a gas then blown through it to remove sufficient agent that on casting a fully undercooled graphite structure results. The preferred gas is carbon dioxide. In an alternative embodiment there is added to the melt, following the blowing treatment, a nodularising agent, preferably a rare earth metal and possibly in conjunction with aluminium, to produce compacted or spheroidal graphite.
Patent GB-2112312-A (GB)
Title: Contact/base welded joint and method of producing same
Inventor: MINKS WERNER
IPC: H01H11/04
Filed: 1982-10-28
Abstract: In a welded joint consisting of a contact body (1) and a base (3) welded thereto, which are joined together by employing the so-called point-projection welding process, one or more projections (4) are embossed into the base. The supporting surface (2) of the contact body is plane and smooth. The basal area of the projections (4) is smaller than the supporting surface (2) of the contact body. In this way metal is prevented from squirting on to adjacent surfaces during the welding process. <IMAGE>
Patent GB-2115016-A (GB)
Title: Colouration process
Inventor: PARTON BRIAN
IPC: D06P1/18
Filed: 1982-11-19
Abstract: A process for the colouration of hydrophobic fibres which comprises applying disperse dye stuff of the formula:   <IMAGE>  where     A = the radical of a diazotisable amine ANH2,     hal = halogen, R, R<1> and R<2> are each independently H or optionally substituted hydrocarbyl, or R and R<1> together with the nitrogen atoms represent a heterocyclic ring and heating to effect fixation of the dyestuff. Process is especially valuable for polyester fibres.
Patent GB-2114403-A (GB)
Title: Computer-telex interface
Inventor: CARBONERA ANTONIO
IPC: H04L25/24
Filed: 1982-12-13
Abstract: An interface device for use between a computer and a telex line and/or local teleprinter for telex print comprises level converting circuits 30 for conversion form the standard level of the computer to the interface level, series-parallel converting circuits 31, a microprocessor 32 comprising an at least 8-bit CPU, a permanent memory 23 (PROM) for code translation from EBCDIC into Baudot and for implementing computer end and telex end connection and communication procedures, a reversible data memory (RAM) 34 and data, address, and check lines 35-37 (BUS), parallel-series conversion circuits 38, and level converting circuits 39 for conversion from the interface level to the standard level of the telex line. <IMAGE>
Patent GB-2122735-A (GB)
Title: Chimney structure
Inventor: ARSTALL JOHN ELLIOTT
IPC: F23J13/00
Filed: 1983-01-27
Abstract: A chimney 14 for a solid or liquid fuel burning installation 42 is supported upon the top 20 of a fuel storage silo 12 mounted on foundation 18. Fuel (e.g. oil or coal) is filled into the silo 12 by way of a supply pipe 46. The lower end of the chimney may be insulated from the silo by a cooling section into which air may be lead through pipes 34. <IMAGE>
Patent GB-2137313-A (GB)
Title: Valve position indication
Inventor: DEW ERIC JAMES
IPC: F16K37/00
Filed: 1983-02-23
Abstract: A valve such as a butterfly valve has a manual actuating handle (16) coupled to an actuator shaft for a valve closure member (12), and a switching means is incorporated in the actuator coupling to indicate fully open and fully closed states of the valve. The switching means comprises Hall effect switching circuits potted into an annular boss (20) fitted to the valve casing (10), the actuating handle having a hub (18) which seats on the boss and rotates relative thereto when the handle is lifted to raise the hub out of locking engagement with the boss, the boss carrying a magnet which actuates the appropriate Hall effect switch when brought into proximate relationship therewith, which occurs only when the handle is rotated and lowered into its fully home locked position corresponding to the fully open and fully closed states of the valve. <IMAGE>
Patent GB-2118878-A (GB)
Title: Electric arc stud welding
Inventor: JORDAN ERNST-GUNTHER
IPC: B23K9/20
Filed: 1983-02-23
Abstract: Electric-arc stud-welding apparatus for welding a stud to a workpiece comprises a stud-retaining device (4) connected to a ram (3) mounted to reciprocate in the apparatus housing (1) with axial limitation and connectable to a welding-current source, and a motor (8) operable to act linearly on the ram (3). In use, the stud is applied to the workpiece, with the formation of an electric arc between the stud and workpiece, is then lifted off from the latter, and, after fusion zones have been produced, the stud is re-applied to the workpiece, with the electric arc being quenched, and is kept in that position until the fused mass solidifies. With this apparatus and welding method, it is possible to achieve better welding quality and efficiency, as well as attaining a correct position for the effective length of the welded-on stud, the ram movements being positively and adjustably controlled in both directions of movement, as regards the in displacement paths and speeds. <IMAGE>