baber/WOPTO huggingface dataset:
Patent GB-2023557-A (GB)
Title: Process for obtaining carbon articles which are designed to operate at elevated temperatures in oxidising atmosphere and carbon articles obtained by such a process
IPC: C04B41/50
Filed: 1978-06-20
Abstract: A process for treating carbon articles in general, and anodes for aluminium electrolysis in particular, includes the steps of: producing carbon articles for which a reduction in reactivity with oxygen is required, preparing a water solution of an ammonium borate, applying the water solution to the carbon articles and finally drying the articles to which the water solution has been applied.
Patent GB-2001471-A (GB)
Title: Apparatus for analysing a sample by bombardment with electromagnetic radiation
IPC: H01J37/252
Filed: 1978-07-19
Abstract: A sample 8 is supported in an evacuable housing 1. Light from a laser is focussed by a lens 7 onto the sample through a cover glass 5. Ions released by the sample are attracted by an electrode 9 and sequently analysed in a mass analyser. A layer 11 of electrically conducting material is provided in the region of the sample 8 to ensure uniform potential distribution in the region of the sample. The layer 11 can be on the cover glass 5, a sample support, lens 7 or can be a coating applied direct to the sample. <IMAGE>
Patent GB-2028700-A (GB)
Title: Electrically connecting by compression welding
IPC: H01R4/18
Filed: 1978-08-29
Abstract: An electrical connection is formed between an aluminium ferrule (10) and an aluminium conductor (11) by compression welding after electroless or anodic deposition of a brittle coating on the ferrule. The compression welding is effected using an indenting die giving indentations (15) of a depth and width of 1.5 to 2.0 times the wall thickness of the ferrule to give cold welding with pure metallic bridging over a substantial area. <IMAGE>
Patent GB-2029239-A (GB)
Title: Ball launcher
IPC: A63B69/00
Filed: 1978-09-08
Abstract: Football practice shooting apparatus includes a ball container, means for transferring balls one at a time to a shooting station, 14, 15 a striking bar 6 and position selection means to select the point of impact of the striking force against the ball. The shooting station and/or the transfer means 4 are pivotally mounted and the arrangement is such that the trajectory of the ball can be adjusted by means of, for example, lever 12. <IMAGE>
Patent GB-2039595-A (GB)
Title: Closure structures
IPC: E05F15/10
Filed: 1979-01-10
Abstract: A closure arrangement for an opening comprises a closure structure (1) slidable sideways relative to the opening, an electric motor drive (7), preferably three-phase, connected by means of an endless chain (8) to the closure structure (1) to effect the sliding and an automatic electric switching device (10) comprising a motor current sensor operable to switch off the motor (7) if the current exceeds a predetermined value. The current sensor may be a relay or resistor in circuit with the motor (7) or isolated therefrom by a transformer. The sensor may operate the on-off manually operable switch (10) for the motor (7) or may operate an auxiliary switch provided with latching and resetting means. The endless chain (8) may run along the top edge of the opening in a channel (3) from which the closure structure (1) is slidably supported, the closure structure (1) comprising sections (2) pivotally connected to adjacent sections (2) along their vertical edges. <IMAGE>
Patent GB-2020470-A (GB)
Title: Pick-up transducer
IPC: G10H3/18
Filed: 1979-03-01
Abstract: A pick-up for a multiple-stringed musical instrument comprises one or more sources 1 of electromagnetic radiation and electromagnetic radiation sensors 2 spaced from said source(s). The pick-up is so arranged in combination with the instrument that strings 4 are disposed in the radiation paths 3 between the source and respective ones of the sensors. Vibration of the strings which are opaque to the radiation modulates the electromagnetic radiation at the sensors which produce modulated signals representative of the vibrations. <IMAGE>
Patent GB-2016119-A (GB)
Title: Guide wheel for a hydrodynamic torque converter
IPC: F16H61/56
Filed: 1979-03-07
Abstract: In a guide wheel for a hydrodynamic torque converter, the guide blades are each sub-divided into an inflow section (17) fixed in relation to the wheel and an adjustable downstream section (18) pivotable in relation to the inflow section. The inflow section may have a recess (22) accommodating the adjustable section and two bearing openings (20,21), extending radially with respect to the axis of the wheel, by which a shaft for adjusting the adjustable section is mounted. The wheel may have two separate, radially inner and outer, annular hub sections (25,31) abutting against each other at a joint plane (33-33) containing the axes of the adjusting shafts. These hub sections are arranged at a distance apart, radially in relation to the wheel axis, to accommodate a servo-piston (28) connected to the said shafts, the radially inner hub section having a flange (24), integral with the inflow section, for abutment by the radially outer hub section. The wheel may also have a recess accommodating the outer ring of a freewheel coupling (40), and a clutch (15) may be provided for direct coupling of the output shaft (14) to a driving flange (9). <IMAGE>
Patent GB-2017808-A (GB)
Title: A door stay device
IPC: E05C17/20
Filed: 1979-03-28
Abstract: A door stay device has a stay bar 2 which passes through a housing 3 accommodating rollers 13 which bear on the stay bar under the action of resilient blocks 15. The stay bar has a head 8 which in the fully extended position of the stay bar abuts against the housing. Adjacent the head is a brake portion or member 20 which enters the housing before the head makes contact with it and, in co-operation with the resilient blocks 15, provides a buffering effect on the stay bar. <IMAGE>
Patent GB-2048527-A (GB)
Title: Voltage regulator for electric generators
IPC: H02J7/24
Filed: 1979-05-09
Abstract: A voltage regulator (1) for regulating the output voltage of an electric generator (16) comprises a comparator (2) for detecting a deviation between the output voltage and a reference voltage with its output connected to a differential amplifier (3). A transistor (4), connected to the differential amplifier (3) so that the base and emitter of the control transistor (4) are coupled to the output of the differential amplifier (3), produces a heteropolar control signal on its collector to which is connected means (5) for regulating the current in a field coil (30) of the electric generator (16). <IMAGE>
Patent GB-2026580-A (GB)
Title: Caravan window frame
IPC: B60J10/08
Filed: 1979-05-22
Abstract: An edge-finishing strip particularly for caravan windows, comprises an extruded strip (1) of synthetic rubber with a metal strengthening insert (2) which may be arranged to perimetrally surround the opening for an entire window, by being successively bent and then joined together at its opposite ends. The section (1) has a cross-section substantially of U-shape so that it encloses the edge of the wall (5), and is provided with a strip (8) which when inserted in the undercut groove (6a, 6b) biases the side walls (4a, 4b) against the wall surfaces. It is further provided laterally with a tubular gasket (9) to engage the window pane. In an alternative embodiment the separate strip (8) is replaced by an integral flange. <IMAGE>
Patent GB-2022785-A (GB)
Title: Thermostat for Mixer Valves
IPC: G05D23/13
Filed: 1979-06-07
Abstract: A mixer valve in particular a sanitary engineering hot and cold water mixer valve, has a thermostat consisting of parts (2, 6, 7) communicating with each other and containing an expansion substance. Cold water supplied through passage 16 passes over the lower portion of coil part 6, hot water supplied through passage 17 passes over coil part 7 and the mixed flow passes over the upper portion of coil part 6, the combined effect causing adjustment of the valve element 14 via actuating part 2. <IMAGE>
Patent GB-2026169-A (GB)
Title: Loop detector arrangements
IPC: G01V3/11
Filed: 1979-06-12
Abstract: A loop detector arrangement for detecting metal objects (e.g. motor vehicles) comprises an oscillator (1) and programmable frequency divider (2) operative on energisation of the arrangement to progressively produce a range of different frequencies in turn and to supply them to a parallel resonant loop circuit (9) via a resistor (8). A phase comparator (11) is connected across the resistor (8) such that its inputs will go out of phase when the loop detects a metal object, the output of the comparator thus operating a relay (15) via an amplifier (13) and driver (14). A state of tune sensor (12) connected to the output of the phase comparator (11) effects automatic tuning in that it stops the above-mentioned frequency progression when it detects that correct tuning has been effected. <IMAGE>
Patent GB-2027850-A (GB)
Title: Fluid pressure proportioning valve
IPC: B60T8/18
Filed: 1979-08-02
Abstract: A varible load valve for modulating the pressure in a vehicle braking system according to the weight of the load carried. The valve comprises a self-lapping double valve arrangement 5, 6, 7 operative to vent brake system pressure in inverse proportion to the weight of the load. The relative disposition of the double valve arrangement is controlled through mechanical linkage 8, 9 by deflection of the vehicle suspension, and the arrangement is provided with a piston 10 acted on by inlet pressure so that the highest position of seat carrier 7 is maintained and the brake system pressure is thus unmodulated in the event of disruption of the link means. <IMAGE>
Patent GB-2034536-A (GB)
Title: Electrical connection between dissimilar metals
IPC: H01R4/62
Filed: 1979-08-16
Abstract: Electrical connection between two dissimilar metals, especially aluminium and copper, is effected by forming a layer of one of the metals over the surface of the other metal, whereby the interface between the dissimilar metals does not occur at the critical areas of contact used for current conduction. In the embodiment shown, copper cable 1 is crimped to a copper terminal 2 having a flat palm 6 coated on its opposite faces with aluminium. An aluminium busbar 7 is secured thereto by means of a nut 8 and bolt 9. <IMAGE>
Patent GB-2059807-A (GB)
Title: Screen assembly locating ring for a circular sieving machine
IPC: B07B1/06
Filed: 1979-09-25
Abstract: A circular sieving machine has a demountable rim (11) in which the screen (13) is mounted. The screen (13) and its support ring (16) are held in place in a lower skirt portion (15) of the rim by a locating ring (21) which bears up against the support ring (16). The locating ring (21) has an O-ring seal (25) sealing it to the inside of the skirt (15) and providing a friction fit of the locating ring in the skirt. <IMAGE>
Patent GB-2034124-A (GB)
Title: Improved antenna
IPC: H01Q19/30
Filed: 1979-10-04
Abstract: A Yagi antenna has its director elements 3 embedded in and supported by a foam plastics material 11. The driver element 8 is in the form of a waveguide section excited by a probe 9 and having an aperture outlet 13, there being no reflector. The foam fills the interior of and partially surrounds the waveguide section. The antenna is suitable for the 1,500 MHz band and can be directly connected to an unbalanced feed 7. <IMAGE>
Patent GB-2032855-A (GB)
Title: Floating Boom Units
IPC: E02B15/04
Filed: 1979-10-16
Abstract: A buoyant boom unit is flexible and comprises an open, strength- structure (3) which has longitudinal elements (4) and transverse elements (5) and is supported by floats (14) in a substantially vertical position. The longitudinal elements (4) are capable of withstanding substantially the whole of longitudinal traction loads to which the boom unit is subjected in service and a balanced distribution of these longitudinal loads between the different longitudinal elements (4) is provided by the transverse elements (5) which are so connected to the longitudinal elements (4) as to maintain a substantially uniform spacing between adjacent longitudinal elements (4). The structure (3) is provided with transverse stiffeners (6, 7) operative to support the floats (14). The structure (3) may carry a containment skirt e.g. when acting as an oil boom. Details are given of various float configurations on the boom and of a container in which the boom may be stowed. <IMAGE>
Patent GB-2036694-A (GB)
Title: Device for mounting a wound-up web of material in the form of a roll
IPC: B65H35/00
Filed: 1979-11-06
Abstract: A device for mounting a wound- up web of material, such as paper, non-woven fabric, plastics or other sheeting, in the form of a roll, comprising a housing 20 for the roll with a slot (25) in its front wall, through which slot the free end of the roll can project and a cutter (26) in the form of a slide mounted on the housing, by means of a mounting rail 29 on the housing engaging in a recess (28) in the cutter (26), adjacent the slot therein for displacement along the housing parallel with the length of the slot. The cutter (26) includes a blade (27) to sever the web and pressure rollers (33) located on both sides of the blade (27) to press the web against the front wall of the housing. The front wall may have a groove 34 therein with a cross-section complementary to the profile of the blade (27). <IMAGE>
Patent GB-2037773-A (GB)
Title: Process for preparing stabilised vitamin D and compositions thereof
IPC: A23K1/16
Filed: 1979-12-10
Abstract: A process for stabilizing vitamin D by the preparation of an inclusion complex of vitamin D with a cyclodextrin, which comprises forming a homogeneous solution from the vitamin D to be complexed and the cyclodextrin in aqueous ethanol at an elevated temperature, and separating the desired inclusion complex from the solution by cooling and/or by evaporation of solvent. The aqueous ethanol has an ethanol content (58% to 65% by volume) such that both vitamin D and the cyclodextrin are soluble. They can be formulated into pharmaceutical compositions, fodder premixes or fodders in conventional manner.
Patent GB-2069211-A (GB)
Title: Coin testing apparatus
IPC: G07D11/00
Filed: 1980-02-06
Abstract: A coin testing apparatus comprises transmitting and receiving coils (14) and (15) on opposite sides of a coin passageway (11). The transmitting coil is connected to high and low frequency oscillators (16) and (17). The output of the receiving coil is separated into the high and low frequency components by a high pass filter (21) and a band pass filter (22). In the high frequency channel the signal is amplitude controlled by a voltage controlled amplifier (23) rectified by a rectifier (24) and smoothed by a long time-constant circuit (26). The initial rise in level caused by a coin entering between the coils (14) and (15) is detected by an instantaneous level change comparator (32) which responds to the rate of change of signal level at the output of the long time-constant circuit (26) becoming equal to preset threshold and causes a normally closed switch (27) to be opened. When the switch (27) is closed a comparator (31) compares the signal with a reference value from a source (30) and adjusts the gain of the amplifier (23) until the signal corresponds to the reference value. Upon the arrival of the coin the switch (27) is opened and a long time-constant circuit (28) causes the gain of the amplifier (23) to be maintained at the level before the arrival of the coin. A window comparator (33) compares the difference in voltage with voltage ranges for acceptable coins. A similar arrangement is provided in the low frequency channel but with two differences. The switch (27) in the low frequency channel is operated by the same instantaneous level comparator as is used for the high frequency channel and instead of a rectifier (24) a novel sample and hold technique is used for providing a d.c. signal from the output of the amplifier (23).
Patent GB-2043832-A (GB)
Title: Piston Seal Assembly
IPC: F16J15/32
Filed: 1980-02-29
Abstract: A piston (10) has a pair of grooves (18, 20) in which are located thrust rings (28, 28') and meander-shaped (zig-zag) sealing rings (36, 36'), biassed radially outwardly for contact with an inner wall of a cylinder. The sealing rings have guide lips (40) in nesting engagement and supported by the web (22), and are formed from plastics material having good sliding properties, e.g. a polyamide or PTFE. <IMAGE>
Patent GB-2054722-A (GB)
Title: Retaining Clip
IPC: F16L3/13
Filed: 1980-05-02
Abstract: A clip for attaching cylindrical components such as wires or tubes to a supporting plate has a sleeve (1) to receive a fastening screw between component retaining members (2). One end (5) of the sleeve is resilient and threaded internally so as to form a snap-on connection with the screw when the sleeve is pushed over the screw shank. Resilient webs (9) engage the supporting plate surface and their resilient range (f) is at least equal to the pitch (s) of the screw thread. <IMAGE>
Patent GB-2080965-A (GB)
Title: Drive apparatus for a slide projector magazine
IPC: G03B23/06
Filed: 1980-07-09
Abstract: A magazine drive for a slide projector in which a drive gear is attached to the magazine and a DC motor attached to the projector base, the motor having gears engaging the drive gear and being controlled by a control circuit including means for detecting the passage of index markings on the drive gear as the magazine is driven by the motor. The control circuit also includes a motor braking circuit which provides rapid braking of the motor and operates by the method of applying increasing pulses of reverse voltage to the motor. The drive allows any slides in the magazine to be selected for projection.
Patent GB-2088302-A (GB)
Title: Fluid flow control apparatus
IPC: B60V1/14
Filed: 1980-11-28
Abstract: A vehicle (e.g. a Hovercraft) has a thrust generator (fan 1) propelling a fluid (e.g. air) through a duct 2 to rudders 3. A pair of doors 7, 9 mounted on opposite sides of the duct 2 are pivotable between a position (as shown) in which they leave the duct 2 unobstructed and a position (chain- dotted) in which they are aligned with each other and close the duct 2. A linkage 11-13 ensures that the doors 7, 9 move simultaneously in opposite directions relative to the fluid flow along the duct 2, thus minimizing the effort needed to move the doors. Pivoted vanes 17 linked by a cable 18 to rudders 3 act in synchronism with the rudders to restrict flow through one or other side exit to give a net stearing thrust. <IMAGE>
Patent GB-2093409-A (GB)
Title: An Improved Hull for a Marine Craft
IPC: B63B5/24
Filed: 1981-02-20
Abstract: A hull structure for a boat comprising an inner hull having on its outer surfaces a plurality of separate elongate tubes T1 T2 etc. juxtaposed in a longitudinal side by side relation each pair of said tubes being held to said hull by a lacing of at least one strong cord C1 that is tensioned at one end of the hull and which cord co- operates with retainer members R along the length of the hull to form a longitudinal clamp that abuts at least a part of the periphery of each pair of juxtaposed tubes and spans the interstitial space between each pair of juxtaposed tubes. <IMAGE>
Patent GB-2086486-A (GB)
Title: Jet propulsion plant
IPC: B64C29/00
Filed: 1981-03-12
Abstract: The plant is shaped such that it can be completely contained within the wing contour, and supplies power to a fixed wing aircraft for hover and cruise. The plant includes an intake 1 in the wing leading edge, inward flow compressor 4 and turbine 8, combustion chamber 7 and propulsion nozzles 13 in the wing surface.
Patent GB-2103156-A (GB)
Title: Missile firing sea craft
Inventor: FURZE EDWARD DAVID
IPC: B63B1/24
Filed: 1981-08-06
Abstract: Sea craft designed to avoid and resist the explosion effects of long range nuclear missiles, by structure and by high-speed manoeuvering during missile approach and designed also for the deployment and launching of Trident missiles can submerge to avoid constant position-taking by satellites, ships and aircraft. The craft comprises means for high-speed manoeuvering, means for avoiding hull water-resistance by hydrofoils and wings to produce lift at high speed, electronic servo-control of flaps and means for stowing, lifting, inclining and launching Trident missiles.
Patent GB-2104015-A (GB)
Title: Endless flexible tracks for vehicles
Inventor: BELL ROBERT GRAHAM
IPC: B62D55/24
Filed: 1981-08-06
Abstract: An endless flexible track 1, for converting a wheeled vehicle into a tracked vehicle, comprises an endless band 4 of elastomeric material reinforced with filamentary material 5. The band 4 has an inner surface 6 which is provided with inwardly- projecting, spaced-apart ribs 8 which, in use of the track, enter between the tread lugs 11 of a lug-patterned tyre 2 of the vehicle, in order to limit relative movement between the track 1 and the tyre 2 in both the circumferential and axial directions of the wheel 3 which carries the tyre 2. Preferably, the inner surface 6 is concavely curved, transversely of the band 4, and the outer surface 17 of the band is convexly-curved, transversely of the band. <IMAGE>
Patent GB-2089411-A (GB)
Title: Improvements in or relating to mine roof supports
IPC: E21D23/00
Filed: 1981-10-23
Abstract: A mine roof support for use at the face or gate end area of a mine working comprises a base member 22 a roof-engaging member 24 and three props, such as hydraulic jacks, to urge them apart. The base member 22 has a part 86 extending laterally from the part carrying the jack seatings 82. The part 86 has its uppermost surface adapted to carry a stage loader conveyor 84, which extends with its conveyance direction longitudinally of the support. The base member 22 and roof-engaging member 24 present an overall generally C-shape, the laterally-projecting part 86 of the base member comprising the lower part of the 'C'. <IMAGE>
Patent GB-2086543-A (GB)
Title: Improvements in trap-line pressure valves
IPC: B60T11/30
Filed: 1981-11-02
Abstract: A valve assembly for use in an hydraulic brake system connecting the master cylinder, in which the lower valve casing (11) is fitted, to the brake actuator (connected to 3) comprises a check valve member (12) and seat (13) providing little resistance to flow to the brake; a pressure relief valve member (13) and seat (8) which retains a residual pressure to the brake actuator, dependent on the biasing spring (10) when the master cylinder pressure is removed; and a differential piston (7) in a bore (2) responsive to a negative pressure in the master cylinder and in the chamber (11), when vacuum bleeding is commenced, to urge the seating (13) away from the valve member (12), retained by way of the probe (17) and so open the valve for bleeding. Embodiments in which the probe is moved by a piston or a diaphragm are given in Figures 2 and 3 (not shown). <IMAGE>
Patent GB-2090746-A (GB)
Title: Heating pad with vibrator for body massage
IPC: A61H23/02
Filed: 1982-01-08
Abstract: A vibrating electric heating pad 19 is connected to a vibrator having a vibrating plate 5 suspended in resilient mounting in the vibrator housing 1 and a control module 24 with a slide switch and a transformer/rectifier. The vibrator may be attached by adhesive strips to the heating pad, and via a jack to the control module. The control module is also electrically connected to the heating pad and controls the heating pad and the vibrator. <IMAGE>
Patent GB-2093354-A (GB)
Title: Chess board
IPC: A63F9/00
Filed: 1982-02-19
Abstract: A chess hoard is covered or coated with a high gloss material 5 and has creases 7 embossed therein to enable the board to be folded. Playing pieces 10 are of a soft polished PVC material. Each square may have a non-gloss portion to enable the playing pieces to be lifted easily. The board may be of cardboard with a padded backing enclosed in a PVC envelope. <IMAGE>