baber/WOPTO huggingface dataset:
Patent GB-1379894-A (GB)
Title: Tuning arrangements for resonant cavities
IPC: H01J23/207
Filed: 1970-12-17
Abstract: 1379894 Klystrons EMI-VARIAN Ltd 17 Dec 1971 [17 Dec 1970 (2)] 60046/70 and 60047/70 Heading H1D A klystron cavity is tuned by the provision in the cavity, or in a cavity coupled thereto, of an electrical path which includes a plurality of series connected diodes, such that the path can be selectively rendered conductive or non- conductive. As shown, the resonant cavities 1, 2, 3, 4 of a klystron are each provided with an auxiliary resonant cavity 12, ..., 15, of similar shape and provided with dummy drift tubes, the auxiliary cavities being tuned by the provision in each of a plurality of paths, Fig. la (and Fig. 1b, not shown) connecting opposite faces of the cavities and formed by series connected PIN diodes, different paths being rendered conductive by the connection thereto of a biasing potential by, e.g., a solid state switch, to provide desired resonant frequencies. The main and auxiliary cavities are separated by windows 16 to 19, located at voltage nodes, and the number of diodes connected in a path is made greater for those paths located in regions of higher field strength i.e. towards the centre of a cavity or, comparing corresponding paths in different cavities, in the cavities towards the output end of the klystron (Fig. 1(b), not shown). In a further arrangement, Fig. 4, permitting fine tuning, the diodes are mounted in glass or ceramic tubes 59 the ends of which project through slots in the cavity walls and are mounted in the ends of the arms 64, 65 of U-shaped members 66, which are movable towards and away from the beam axis 54 by adjusting screws 68.
Patent GB-1275449-A (GB)
Title: Improvements relating to submarine operation of pneumatic tools
Inventor: BARBER ANTHONY DOBSON
IPC: E21B7/124
Filed: 1969-12-12
Abstract: 1275449 Operating pneumatic tools under water HOLMAN BROS Ltd 7 Dec 1970 [12 Dec 1969] 60779/69 Heading E1H [Also in Division F1] A pneumatic tool 11 submerged under water is in a closed pneumatic circuit with a motor 15 driven pump 14. The motor 15 and pump 14 may be enclosed in a submerged vessel 10 (e.g. with an access panel 20 and a control panel 21) together with a reservoir 16 in the tool 11 (e.g. a rock drill) supply line 12, and a filter/dryer 17 in the return line 13, the circuit between the filter/dryer 17 and the pump 14 being via the interior of the vessel 10. The pump 14 may be cooled by a heat exchanger 19. The motor 15 may be supplied with electrical power either from batteries in the vessel 10 or from the water surface 22. Gas leakage from the circuit may be replenished either from a high pressure cylinder in the vessel, or from a pump 31 and reservoir 32 in a barge 33.
Patent GB-2004921-A (GB)
Title: Transfer prnting process
IPC: C09D11/037
Filed: 1978-08-30
Abstract: Polyester polyamide and cellulose triacetate fibre materials can be printed in strong, fluorescent yellow shades in accordance with the transfer printing principle when transfer papers printed with dyestuffs of the formula   <IMAGE>  wherein R<1>-R<7> represent H or lower alkyl, and in addition R<6> may represent methoxy, ethoxy, methylsulphonyl, ethylsulphonyl or chlorine, X is oxygen or sulphur, are used.
Patent GB-2009693-A (GB)
Title: Floating tower
IPC: B63B35/44
Filed: 1978-09-22
Abstract: An offshore floating tower comprises cylindrical seawater deflector rings 13 located above a ring of buoyancy tanks 1 enclosing a pneumatic damper bell 7. It is ballasted at its lower end 8. Its external diameter is substantially constant. The cylindrical deflector rings 13 convert the horizontal thrust of the waves into a vertically upward movement F. <IMAGE>
Patent GB-2010355-A (GB)
Title: System for Supplying Pressurised Fluid to Underground Mining Machine
IPC: E21D23/04
Filed: 1978-11-16
Abstract: The system involves securing lengths of fixed conduit 14 to parts 8, 10 of the conveyor assembly, prior to the assembly of said parts at the underground mine working. When the conveyor assembly has been assembled, the length of fixed conduits are inter-connected, either by straight length of flexible conduit 16, or by branched lengths of flexible conduit, where take off for fluid under pressure is required for the machinery, for example a roof support unit. <IMAGE>
Patent GB-2009173-A (GB)
Title: Novel Prostaglandin Compounds
IPC: C07F7/18
Filed: 1978-11-30
Abstract: The invention provides novel prostaglandin compounds which may be represented by the formula:   <IMAGE> wherein R1 is methyl or ethyl; R2 is a C2-C7 alkyl group; T is the divalent radical   <IMAGE> wherein R5 is vinyl or cyclopropyl; Z is -(CH2)6- or   <IMAGE> and -C13-C14 is ethylene or trans- vinylene. The novel prostaglandin compounds are potentially useful as therapeutic agents.
Patent GB-2042048-A (GB)
Title: Keyoperated device
IPC: E05B35/00
Filed: 1979-01-26
Abstract: A key-operated device, for example for controlling access to switch gear or potentially dangerous machinery, has a rotary motion with an axially inserted key but departs from the usual barrel lock construction which is sensitive to foreign matter. Instead it has a faceplate in front of a stationary body with a cylindrical member rotatable in it and having a recess for the key and circumferentially spaced notches in a flange close behind the plate and prevented from direct access through the keyhole by a fixed axially extending wall on the back of the plate but accessible by appropriate lugs on the key when the latter is inserted. The rotatable member is connected through a spindle to a switch, valve or latch or other actuated device.
Patent GB-2042035-A (GB)
Title: Prop control system
IPC: E21D23/16
Filed: 1979-02-06
Abstract: A control system for a hydraulically powered self advancing mine roof support, which system ensures that a hydraulically extensible chock leg of the support is set to a predetermined pressure, irrespective of the length of time that a main inlet valve is held open comprises an auxiliary valve 5 interposed between a main valve 3 and a chock leg(s) 1 in a fluid supply line 4 extending from a high pressure line 2 to the support, a bypass line 6 connected to the high pressure line 2 in advance of the main valve and extending to the auxiliary valve, the auxiliary valve being so constructed as to open upon sensing a predetermined pressure in the fluid supply line 4 and to close upon sensing a high predetermined pressure in that line. A shut-off valve 7 is incorporated in the bypass line 6. <IMAGE>
Patent GB-2014498-A (GB)
Title: Copy turning
IPC: B23Q35/10
Filed: 1979-02-14
Abstract: A non-revolving turning head for attachment to the longitudinal carriage 2 of a lathe, has cutting tools 23 mounted in a housing 13 and simultaneously radially adjustable relative to a workpiece by a cam 15 pivotable about the axis of rotation in the housing. The cam 15, e.g. disc, is operably associated in movement through a mechanical linkage 10 with the copying slide 6 of a copying lathe or with the cross slide of a lathe with numerical path control. The linkage 10 is a thrust bar coupled to bearing plates 9,11 on the copying slide 6 and on the cam 15. The cam 15 has eccentrically arcuate grooves 16 to produce the radial tool movement. <IMAGE>
Patent GB-2042348-A (GB)
Title: Chance game
IPC: A63F3/00
Filed: 1979-02-24
Abstract: A game comprises a board on which are identified a number of playing positions and on which is rotatably mounted a pointer. The latter has identified thereon a plurality of positions each with a play instruction, these positions being equal in number to the playing positions on the board and being so arranged that at any one time the play instruction or control positions can align with respective ones of the playing positions. The game further includes a pack of cards numbered 2, 2, 2, 2, 3, 3, 3, 3, 4, 7, 7, 7, 7 with two wild cards and which are initially dealt face down one to each playing position. Play starts at one playing position where the card is upturned by the player and the pointer is moved in accordance with the number shown. After movement the instructions on the pointer relate to the aligned playing positions and one instruction on the pointer determines which player next moves the pointer in accordance with the number on his card. One player is a banker and players stake money. <IMAGE>
Patent GB-2017266-A (GB)
Title: A High Pressure Cut-Off Valve
IPC: B05B7/12
Filed: 1979-02-27
Abstract: High pressure cut-off valve (for a spray gun) is of the type in which a control piston unit 1 is driven by the controlled pressure medium to reduce the holding or actuating forces that are applied by an operator via mechanism 9, movement of the unit controlling flow between an inlet 5 and an outlet union 6 for the pressure medium. The control piston unit has a shank portion 10 upstream of valve closure portion 7, a counterpiston 11, and a pressure equalising channel 12. A vent passage 19 is provided. The effective areas of the closure portion 7, shank portion 10 and counterpiston 11 exposed to the fluid pressure, may be such as to support the closing force, support the opening force or maintain neutrality. In another embodiment the control piston unit is provided with a throttling band (13) having tapered grooves (16) at one end. <IMAGE>
Patent GB-2021049-A (GB)
Title: Pneumatic tire primarily for agricultural tractors
IPC: B60C11/01
Filed: 1979-03-27
Abstract: A pneumatic tire for a drive wheel of an agricultural vehicle has a tread design comprising a series of principal traction bars 3 located on each lateral side of the circumferential centerline 2 of the tread and extending axially outward from the centerline to the shoulders of the tread with each pair of adjacent bars on each said side defining a pocket 5 in the tread design. The bars on one side are circumferentially staggered relative to the bars in the other side. The pocket between each two traction bars on each side of the centerline contains a fin 4 which is connected to the centerline end of a bar on the other side of the centerline and extends axially outward in the pocket terminating in a shoulder area of the tire. Each fin has an average height not greater than 25% of the average height of the said alternate principal traction bar. <IMAGE>
Patent GB-2050643-A (GB)
Title: Program Control of Sequential Machining of a Job Performed by a Number of Tools
IPC: G05B19/416
Filed: 1979-06-02
Abstract: In a machine tool, e.g. a turret lathe, dimensional data on the idling runs and working feeds for each operation cycle are defined for each tool and that data is indicated on a digital indication unit (15). The value of the idling run of the tool, measured to the machined portion of the tool, and the value of the machine portion of the tool during the movement and resetting of the tool are defined. The reference point of each operation cycle for each tool is aligned with the beginning of the machined portion of a respective surface of the job, and the coordinates relating to the working feed and the idling run of the tool during the resetting of the rest are reverse read. The permissible error of the tool movements at the end of each operation cycle is read in order to check the tool for proper movement. <IMAGE>
Patent GB-2029542-A (GB)
Title: Power transmitting coupling for windscreen wipers
IPC: B60S1/24
Filed: 1979-07-31
Abstract: A power transmitting coupling, for insertion between a windscreen wipe drive motor and a wiper blade, which automatically takes up at least part of the driving motion when movement of the wiper blade is blocked, for example by snow, in order to prevent damage to the motor. In one arrangement the coupling is located in a motor crank and is such that the crank length is shortened when the wiper blade is blocked. The crank comprises an inner lever (1) to which the driver shaft of the motor is secured (at 9) and an outer lever (18), movable relative to the inner lever (1), to which a push rod may be articulated (at 23). The inner lever (1) is guided within the outer lever and when the wiper blade movement is not blocked a spring (28) serves to keep the distance between the drive shaft (9) and the push rod articulation part (23) at a maximum. <IMAGE>
Patent GB-2055445-A (GB)
Title: Compression Spring
IPC: F16F3/04
Filed: 1979-08-03
Abstract: A compression spring is formed by intertwining two helical spring components (11, 16) which are inverted relative to one another and each coil of which has a cross-section which is similar to that of a Belleville spring. The functioning of the spring thus formed is similar to that of a stack of Belleville springs, but the spring has greater stability and resistance to lateral forces. <IMAGE>
Patent GB-2031886-A (GB)
Title: Improvements in etherification processing of light hydrocarbons
IPC: C10G53/04
Filed: 1979-09-14
Abstract: In the processing of olefinic hydrocarbon mixtures containing isobutylene and isoamylene which are etherified with methanol to obtain higher octane components, unreacted methanol is removed from the etherified mixture by contact with a separate liquid glycol phase before unreacted hydrocarbons, substantially free of methanol, are distilled from the etherified mixture for further catalytic processing in which methanol is deleterious to the catalyst.
Patent GB-2036047-A (GB)
Title: A Binding Agent
IPC: A23K50/15
Filed: 1979-11-12
Abstract: A binding agent comprises a mixture of an inorganic binder (e.g. plaster of Paris) and a resin binder (e.g. urea-formaldehyde resin). An animal feedstuff may be made up in pelleted form by mixing together a plurality of nutritional ingredients in powdered, granular, comminuted or the like form, together with the binding agent (e.g. plaster of Paris and a urea-formaldehyde resin) with water and a catalyst for the resin, forming the mixture into pellets or cakes, and allowing the pellets or cakes to set. The use of the binder disclosed allows the composition of the feedstuff to be determined by dietary considerations without regard to the mechanical and adhesive properties of the nutritional components.
Patent GB-2053406-A (GB)
Title: Means for and method of fixing a member to a surface
IPC: F16B12/14
Filed: 1980-06-13
Abstract: A method of fixing a member (11), such as a handle, bracket or rail, to a wall or door surface (10) comprises securing a pair of bushes (16) to the surface in a spaced relation, each bush being secured by way of a screw-thread thereon or by a screw (21) passing through a central bore (18) therein. In an external surface of each bush is a triangular- section annular recess (17) which defines an inclined surface (19). The member (11) has two cavities (14), each extending from a surface thereof and when the member is presented up to the surface (10) the bushes are received in said cavities. Two threaded holes extend from the outside of the member into the cavities (14) respectively and with the bushes received in the cavities these threaded holes communicate with the recesses (17). Respective grub screws (20) are engaged in said threaded holes and when tightened the end of each screw rides along the inclined surface of the recess, thereby pulling the member into tight engagement with the surface (10). The fixing is thus substantially hidden from view, in use. The invention also resides in means for carrying out said method. <IMAGE>
Patent GB-2054266-A (GB)
Title: Semiconductor contact shim and attachment method
IPC: H01L23/492
Filed: 1980-07-03
Abstract: A contact shim for insertion between an electrode and a contact surface of a semiconductor element in a semiconductor device assembly has a generally continuous body (2) provided with a number of apertures (4, 5, 6, 7) having a land (1) 2 or finger extending at least partially thereacross. Preferably a land comprises a bar which bisects an aperture (4, 5, 6, 7). The apertures and bisecting lands may be used as visual guides in aligning the shim with reference marks on the contact surface of the semiconductor element and, the means of attaching the shim to the element may be applied to the lands in order that any distortion consequent upon attachment is confined to the lands leaving the body of the shim undistorted. <IMAGE>
Patent GB-2081070-A (GB)
Title: Display stand
IPC: A47B87/02
Filed: 1980-08-08
Abstract: A display stand is formed from a plurality of modular units each comprising a base (6) and side walls (7), and coupling therebetween is achieved by means of convex keys (20) which rest in co-operating slots (21) in the upper and lower surfaces of the side walls (7). <IMAGE>
Patent GB-2057503-A (GB)
Title: Palladium Electrodeposition Compositions
IPC: C25D3/50
Filed: 1980-08-15
Abstract: Pd electrolyte compositions comprise a source of palladium ions such as a water soluble palladium compound and a source of free nitrite ions, e.g. alkali metal nitrite in excess relative to the palladium.
Patent GB-2059877-A (GB)
Title: A carriage brake for typewriters or similar office machines
IPC: B41J19/02
Filed: 1980-08-27
Abstract: A carriage brake for typewriters or similar office machines which is connected to the spring drum (7) used for movement of the carriage, the brake comprising a support plate (13) carrying brake flyweights (16) and driven by a stationary planetary gearing (7a, 10, 11, 13a) the planetary wheel comprising two gear wheels (10, 11) mounted on a pin (12) rigidly connected to a support and a freewheel coupling (14) automatically coupling the gear wheels (10, 11) together depending on the direction of rotation, the flyweights (16) cooperating with a brake surface (7b) on the spring drum casing (7). <IMAGE>
Patent GB-2059135-A (GB)
Title: Tape format having both video and audio information on same tracks and apparatus for recording and/or replaying same
IPC: H04N5/926
Filed: 1980-09-17
Abstract: Audio and video information is recorded and/or replayed using a multiplexing technique with which the capacity to independently edit that information is preserved. Compatible portions of audio and video information are disposed at separate locations along the same tape tracks with the space along each track being apportioned by time-compressing each type of information before it is recorded and time-expanding each type of information before it is replayed. <IMAGE>
Patent GB-2060461-A (GB)
Title: Belt-knife Splitting-machine
IPC: B26D1/02
Filed: 1980-09-18
Abstract: A belt-knife splitting-machine has a belt-knife (10) guided in a knife guide (9) which extends across the working width. The knife guide is carried by an upper part (8) mounted on a lower part (7). The lower part is resistent to bending but the upper part consists of sections (11, 12, 13) which are hinged together at (20, 21). The knife guide can be given an appropriate deformation by slightly inclining the sections (11, 13) relatively to the section (12) by means of adjusting devices (22, 23, 24, 25). <IMAGE>
Patent GB-2084364-A (GB)
Title: Signal Converter
IPC: H05B39/09
Filed: 1980-09-26
Abstract: A converter for converting electrical impulse morse signals to corresponding light signals, comprising amplifier means (TR1, TR2) to which the impulse signals are applied, pulse shaper means (D1, D2) for producing substantially rectangular pulses corresponding to the impulse signals, and switch means (TR3, TR4) responsive to the substantially rectangular pulses for supplying to a light source electrical power whereby the light source is constrained to be illuminated so as to produce the light signals corresponding to the said impulse morse signals. <IMAGE>
Patent GB-2086643-A (GB)
Title: Sealed lead-acid accumulator
IPC: H01M10/52
Filed: 1980-10-27
Abstract: The accumulator contains a lead dioxide cathode (4), a lead anode (5) and an electrically conductive oxygen-reactive anodic electrode (6) containing a sparingly water-soluble reversibly oxidisable quinoid compound, such as hydroanthraquinone or an anthraquinone with at least one electron-donating substituent and, preferably, electrically conductive carbon. In one embodiment the electrode (6) forms part of the anode of the cell. <IMAGE>
Patent GB-2063562-A (GB)
Title: Thin film sensor
IPC: H01C17/00
Filed: 1980-11-07
Abstract: A method of forming a thin film sensor structure (10) wherein a multilayer structure (23) is firstly deposited on a base surface (11). The multilayer structure may include a lowermost insulative layer (13), a superposed resistive layer (21) and a superposed conductive layer (22). Portions of the conductive and resistive layers may be removed by suitable lithographic processes and the like to form a resistor structure (26) having connection surface portions (20). A protective outer coating (18) may be formed on the resistor structure (26) and subsequently provided with vias (19) to provide access to the connection surfaces (20). The vias may be formed photolithographically in a final removal step. <IMAGE>
Patent GB-2072910-A (GB)
Title: Apparatus for indicating the presence of a movable object
IPC: G08B5/36
Filed: 1980-11-20
Abstract: Apparatus for use, for example, by a cyclist, comprises a base (10) with a domed cover (12) for transmitting light from a bulb (14). The apparatus is worn on a person's arm and movement of the arm causes movement of a conductive strip (24) to complete a circuit to the bulb (14). The bulb (14) may be continuously or intermittently lit according to the circuit used. <IMAGE>
Patent GB-2088839-A (GB)
Title: Borate Sequestered Vanadium Solutions
IPC: B01D53/14
Filed: 1980-12-05
Abstract: Sequestered vanadium solutions comprise an aqueous solution of a metal or ammonium vanadate in a concentration of from 1 to 5 gm/litre together with a borate in which the ratio of vanadium to borate is from 2.0:1 to 3.0:1. Alkaline solutions of such borate sequestered vanadium together with at least one salt of an anthraquinone disulphonic acid may be used in the Stretford Process for the removal of hydrogen sulphide from gases or non-polar liquids.
Patent GB-2060377-A (GB)
Title: Deceleration apparatus for safety nets
IPC: A62B1/22
Filed: 1979-05-15
Abstract: A landing net assembly (10) provides a controlled deceleration landing device for pole vaulters, high jumpers and the like in such a way that the impact of a free-falling body and the rate of displacement of the landing net is dampened in a controlled manner. Each of a plurality of damping devices includes a supporting post (12, 14) which contains a fluid (72) and float (76) submerged in the fluid (72), the float (76) being connected by tendons or cords (82) to the landing net (18) so that when the (18) net is displaced the float (76) is displaced within the fluid (72). In this manner, the viscous drag force of each float as it moves through the fluid and the buoyant force of the float in the fluid dissipate the initial impact of the free-falling body and damp the rate of displacement of the net.
Patent GB-2071309-A (GB)
Title: Fire-guards
IPC: F24C15/36
Filed: 1981-01-15
Abstract: A fire guard for use with a portable heater comprises a frame 6, 7 for supporting the heater, the frame having wheels 8 for its transport, and a heat-permeable guard 1 on the frame for obstructing access to the heat source of the heater. <IMAGE>
Patent GB-2098810-A (GB)
Title: Static induction apparatus
IPC: H01F27/33
Filed: 1981-02-13
Abstract: This invention relates to a large-sized static induction apparatus such as a transformer or reactor. The static induction apparatus has a sound insulation panel 9 mounted through an elastic body 10 on a reinforcing channel 3 which is disposed on a side plate 2 of an oil tank in which the main device of the apparatus is received. To reduce vibration transmitted from the channel 3 to the panel 9, and thus reduce radiated noise, a part of the panel 9 to which the elastic body 10 is mounted is made heavier than the rest of the panel. This can be achieved by a beam 13 around the periphery of the panel. <IMAGE>