baber/WOPTO huggingface dataset:
Patent GB-1287000-A (GB)
Title: Apparatus for the manufacture of floating concrete structures in a body of water
Inventor: GEORGII HANS CHRISTER
IPC: E02D23/02
Filed: 1969-12-17
Abstract: 1287000 Floating structures H C GEORGII 17 Dec 1969 [20 Dec 1968] 61536/69 Heading E1H A buoyant concrete-structure is manufactured while floating on water 4 protected from wave action by a floating concrete-ring 1, which has buoyancy and ballast tanks 2 and is secured by cables 17 to an annular anchor 19. When the structure is complete some of the tanks 2 are flooded so that the ring descends and heels sufficiently to allow the structures to pass over a deck 9 in an opening 10. Alternatively, the ring is made to rise and heel so that the structure can pass through an opening 13. An additional set of buoyancy and ballast tanks 12 may be provided on one side of the ring to support a deck 11. Sections of the structure may be pre-cast on said decks and launched into the water 4 or the circumjacent water while the ring is tilted. Cement, sand and gravel for the preparation of concrete at stations 8 may be stored in some of the tanks 2, 12. Helicopter platforms 7 may be provided on buildings 6. At least one of the tanks 2 may be open at both ends and serve as a dock for a cylindrical vessel, Figs. 8 to 10 (not shown), wherein materials are transported to the ring. The vessel normally floats horizontally and is submersible so that it can be directed in a vertical attitude through the bottom of the tank with the aid of a guide cable extending from the ring to the anchor. Access to longitudinally-extending cargo-spaces in the vessel is gained by way of the upper end of the tank. The anchor has ballast tanks therein that are similar to the tanks 2 so that it can be raised and made to float when the ring is to be re-sited. The ring I may be replaced by a similar body having a substantially C-shaped configuration in plan view, Fig. 7 (not shown).
Patent GB-719191-A (GB)
Abstract: 719,191. Protractors. GREY, V. H. Jan. 29, 1953, No. 2544/53. Class 97(3) A protractor has a base 1 on which is rotatable a plate 3 which may be clamped in adjusted position by a locking nut 9. A blade 4 is arranged for angular movement with the plate 3 and for movement tangential thereto, this blade having a groove 14 engaged by a projection 13 from a locking member 12 which seats in a recess 11 in an arm 6 attached to the plate 3. The groove 14 and recess 11 allow the locking member a limited radial movement. A screw shank 15 on the locking member passes through a conical bore 16 in the arm 6 and carries a nut 17 having a conical part 18. Thus, by tightening the nut 17, the conical part 18 co-operates with the conical bore 16 to clamp the locking member 12 and thereby the blade 4 to the plate. Nut 17 may be replaced by a screw which threads into the arm 6 and has a conical end co-operating with a conical bore in the locking member 12. In a further form, the arm 6 is omitted and the locking member extends over the plate 3 and is constrained by radial guides, and conically ended screw engages a threaded bore in the locking member with its conical end cooperating with a conical bore in the plate 3. Specification 563,819 is referred to.
Patent GB-777908-A (GB)
IPC: B63H3/04
Abstract: 777,908. Variable pitch propellers. NAAMLOOZE VENNOOTSCHAP KONINKLIJKE MAATSCHAPPIJ DE SCHELDE. Nov. 1, 1955 [Nov. 13, 1954], No. 31245/55. Class 114. In a variable pitch marine propeller in which pitch variation is effected by a rod 3 adapted to move in a bore in the propeller shaft, the propeller boss and the bore being filled with oil and change of volume of the free space therein caused by movements of the rod being compensated, the adjusting rod or an extension 4 thereon passes through an opening 5 in the rear wall 1 of the boss and is sealed in relation thereto by a concentric bellows 6 having an average operative cross section equal to that of the rod or extension where it enters the boss chamber. Rings 7 limit the expansion of the bellows and a perforated sleeve 8 prevents collapse, the extension 4, bellows 6 and sleeve 8 being secured together by an end plate 9. Specification 208,434 [Class 114] is referred to.
Patent GB-2026243-A (GB)
Title: Protective hood for ignition distributors
IPC: F02P7/04
Filed: 1978-07-21
Abstract: A protective hood 30 Figure 2 for slipping onto the cap of ignition distributors has an outer surface from which project two loops 17 which are resilient in a radial direction and each of which has a latch means 20 which engages behind the rim 24, 26 of the cap of the ignition distributor. The radial resilience of the two loops 17 renders it possible to use the hood for caps which are attached to the distributor housing by screws in holes 27 and for caps secured by springs 28, whereby the same type of protective hood is usable for a plurality of types of ignition distributor caps. <IMAGE>
Patent GB-2001872-A (GB)
Title: Screening device for bulk mineral material in powder or granular form
IPC: B07B1/55
Filed: 1978-08-02
Abstract: Bulk particulate water insoluble material is conveyed over a filter screen K, and a spray nozzle W is reciprocated below the filter screen so that a curtain of water sweeps substantially the whole lower face of the filter screen. The spray nozzle is preferably in the form of a U- shaped pipe F whose base is positioned transversely below the filter screen and whose legs extend upwardly to longitudinal guide rails R and S supported above either side of the filter screen. The filter screen K may comprise a strip of cloth which overlies a metal mesh I and is carried at each end by a driven roller L. <IMAGE>
Patent GB-2002473-A (GB)
Title: Anti-skid brake control system
IPC: B60T8/1763
Filed: 1978-08-09
Abstract: An anti-skid brake control system produces a signal proportional to the acceleration of a braked wheel; a trigger signal is produced at a set acceleration level to divide successive deceleration/acceleration cycles into successive acceleration periods separated by intermediate periods; integrating means respond to said trigger signals to produce an output signal that changes in a predetermined progressive manner in one sense during each acceleration period and in the opposite sense during each intermediate period so as to vary in accordance with surface friction conditions. The output signal is used to vary a control parameter or function within the system, such as the set acceleration level so that it is set in accordance with said surface friction conditions. Preferably, said integrating means comprises a capacitor that is discharged so that its potential falls in said one sense from an initial predetermined level and rises in said opposite sense, the charging rate being increased at a predetermined threshold potential below which low friction conditions are signalled.
Patent GB-2004330-A (GB)
Title: Wave energy conversion apparatus
IPC: F03B13/14
Filed: 1978-08-18
Abstract: In the apparatus wave action produces an oscillating column of water in a tube (1) upstanding from the sea bed to a level above the water surface, entry and exit of water to and from the tube being effected by means of a ring of apertures (2) in the tube just below the water surface, so that the apparatus is responsive to wave action in any direction, and wherein the movement of air in the tube above the oscillating column of water is utilised through a pneumatic control circuit to drive an air turbine connected to an electric generator. <IMAGE>
Patent GB-2003630-A (GB)
Title: Voltage regulators
IPC: G05F1/573
Filed: 1978-09-01
Abstract: A dc voltage regulator includes a power transistor (T1a) whose emitter- collector path is situated between an input terminal (2a) to which a voltage (UB) is applied, and an output terminal (3a). The power transistor is connected in cascade with a control transistor (T2a) to the base of which a reference voltage (UREF) is applied. A circuit (6a) for limiting the output current is provided which comprises a series resistor (RSa) through which the output current flows and a limiting transistor (T4a), the emitter-base path of which is connected in parallel with the series resistor and the collector of which is connected to the base of the control transistor (T2). Also the collector of limiting transistor (T4a) is connected to the base of control transistor (T2). The limiting circuit is connected between the emmitter-collector path of the power transistor and the associated output terminal, the control transistor and the limiting transistor are both of opposite conductivity types with respect to the power transistor, and the emitter of the control transistor is connected to the output terminal. A further circuit uses complementary components to provide a regulated negative output. The circuit arrangement may be employed as a dc power supply for a model railway. <IMAGE>
Patent GB-2008058-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G19/02
Filed: 1978-11-15
Abstract: A pusher conveyer has an endless chain or belt carried on two or more sprockets (11A, 11B, 11C) or other rotary members with parallel axes of rotation, pushers (14) being secured to the chain or belt at regular intervals. The attachment (16) of the pushers (14) to the chain or belt is such that when each pusher (14) is travelling along a straight working run (12) of the chain or belt, a free end of the pusher projects through the plane containing the axes of the two rotary members (11A, 11B) at the ends of the working run (12), so that when a portion of the band carrying a pusher commences to move around the rotary member at the downstream end of the working run, the free end of the associated pusher reverses its movement to enter a complementary arcuate path. <IMAGE>
Patent GB-2039244-A (GB)
Title: Extruded and roller polished rigid thermoplastic sheet having optically smooth surfaces
IPC: B29C48/00
Filed: 1979-01-10
Abstract: A rigid thermoplastics sheet having optically smooth surfaces, characterized as exhibiting a degree of (defined) optical distortion ( delta ) of from 0.03 to 0.06, is produced by polishing a sheet-form extrudate issuing from an extruder, by polishing rolls which are driven by a drive incorporating a final transmission to the rolls which continuously transmits the driving force e.g. a fluid coupling or hydraulic torque converter, a flat belt, or a contacting roller or cone. The final transmission avoids cyclic speed variations which come in final chain or gear transmissions to the rolls. Preferably, specified controls are also exercised over the temperature of the sheet and of the final polishing roll, of the extrusion rate, and of the amplitude of high frequency vibrations in the apparatus. The sheet may be formed into signboards, displays, or room light covers, and may comprise a methyl methacrylate polymer, polycarbonate, polystyrene, or rigid P.V.C.
Patent GB-2013471-A (GB)
Title: Blocks and Cakes of Animal Foodstuffs
IPC: A23K50/15
Filed: 1979-01-19
Abstract: Animal foodstuff blocks or cakes are prepared by adding to the constituents of the foodstuffs a urea- formaldehyde condensate binder and a catalyst for polymerising the binder, and allowing the resultant mixture to set in a mould. Hard weather-resistant blocks are formed at ambient conditions. The binder may constitute 5-25 wt% of the mixture and the catalyst may be a concentrated inorganic acid or salt solution (e.g. H2SO4, H3PO4, NH4Cl).
Patent GB-2013586-A (GB)
Title: Improvements in or relating to folding boats
IPC: B63B7/02
Filed: 1979-02-12
Abstract: A folding boat has two bottom panels (12, 13) each hinged along a straight longitudinal edge to a respective side of an elongate keel structure (22, 23) and along an opposite curved, chine edge to a correspondingly curved edge of a respective side panel (16, 15), the hinges being flexible and resilient such that the panels (12, 13, 15, 16) can be folded to lie flat against each other with the side panels innermost. To erect the boat (11). The bottom panels are opened outwardly and edge reinforcing (26, 27) ribs are inserted in respective grooves in opposite sides of the keel structure. The side panels are then opened, causing curvature of the panels and of the keel structure to lock the ribs in the grooves and interlock crenellated reinforcing members (19, 20) along the chine edges to form a rigid structure. Removable transverse thwarts, a bow panel and a folding transom structure maintain the side panels apart in the erected boat. <IMAGE>
Patent GB-2013977-A (GB)
Title: Depletion-mode field-effect transistor
IPC: H01L29/06
Filed: 1979-03-06
Abstract: A depletion-mode field-effect semiconductor device formed in a window (7) in a thick insulating layer (5) on a substrate (1) incorporating a channel stop region (19) wherein the edge of the thick insulating layer (5) lies outwardly of the edge of the channel stop region (19) where it underlies an electrical connection (13) to the field-effect control electrode of the device, but otherwise lies outwardly of the edge of the channel stop region (19). The construction enables autoregistration techniques to be employed while avoiding difficulties due to current conduction via the part of the substrate under the electrical connection between the channel stop region and the channel region proper of the device. <IMAGE>
Patent GB-2033822-A (GB)
Title: An improved method of manufacturing cast dental crowns
IPC: A61C5/77
Filed: 1979-09-24
Abstract: A method of forming a dental crown on a model of a jaw comprises filling a preformed deformable shell in the general form of a crown for a tooth with a setable material, fitting the deformable shell on the stump of the tooth to be crowned, arranging the stump into position between and against its neighbouring and opposing teeth such that it partially deforms to correspond and match with said teeth, retaining the stump in position until the material contained within the deformable shell sets, removing the shell from the set material, forming a further shell over the set material such that the further shell conforms to the shape of the material thereafter removing the further shell and utilising it in an investment casting technique to provide a crown with its outer surface corresponding to the outer surface of the shell.
Patent GB-2039557-A (GB)
Title: Improvements in or relating to friction materials
IPC: F16D69/02
Filed: 1979-10-31
Abstract: A wound clutch facing is made from a glass yarn of a rough physical form and a binder. The glass yarn contains at least one continuous filament strand and may for example be a doubled yarn or a yarn having a structure in which a sliver of staple glass is wound on a continuous filament core, or a yarn with a core structure out of which loops project at intervals. The latter yarn can be made by a wrapping technique. The binder can include both thermoset resin and rubber. The clutch facings are made by first impregnating the yarn, then winding the impregnated yarn into the form of a facing and press-curing the facing. <IMAGE>
Patent GB-2069830-A (GB)
Title: One-piece moulded shower fitting
IPC: E03C1/06
Filed: 1979-11-17
Abstract: The invention provides an improved shower fitting comprising an elbow joint (2) having two arms, a hollow rod (8) integrally formed with one arm (4) of the joint and a spray control device (12) integrally formed with the second arm (6) of the device, a continuous passageway (16) being provided through the rod (8), the elbow joint (2) and the spray control device (12) for passage of water therethrough, and the fitting being moulded in one piece from plastics material. The all-in-one construction of the fitting obviates the need for the fabrication of a plurality of parts and their assembly in additional manufacturing steps. <IMAGE>
Patent GB-2040578-A (GB)
Title: Sealed electromagnetic relay
IPC: H01H50/04
Filed: 1979-12-10
Abstract: A miniature sealing-tight relay having components which are disposed in a plastic material casing especially suited for use as a telephone relay. The casing has a belt having walls in which a magnetic circuit, a coil and the associated connections are moulded; one or two side plates are welded to belt 1 and the fixed contacts and the components for securing and pivoting moving contacts are moulded therein.
Patent GB-2036622-A (GB)
Title: Manufacture of seamless metal tubes
IPC: B21B23/00
Filed: 1979-12-13
Abstract: Seamless steel tubes are made from solid blanks by, firstly, piercing the blank (at 2), while elongating the blank by a factor of, typically, 1.8; subjecting the blank to a circumferential rolling process in a device (3) which may be generally similar to the piercing device, and which produces an elongation roughly equal to that in the piercing step; and passing the blank through a continuous rolling mill (4) to produce a seamless tube, with the elongation produced by the rolling mill being by approximately the same factor as the combined elongation produced in the piercing and circumferential rolling steps, typically about 4. The number of sets of rolls in the rolling mill may be fewer than is conventional, for example six, giving less chance for the blank to cool before rolling is completed. The method can be used for large diameter tubes, for example about 250 mm in diameter, with relatively thin walls. <IMAGE>
Patent GB-2066846-A (GB)
Title: Aluminum-tin base bearing alloy
IPC: C22C21/00
Filed: 1980-01-08
Abstract: The Al-Sn base bearing alloy comprises 3 to 7% by weight of Sn; 0.1-1.0% by weight of Cr; 1 to 10% by by weight in total of one or more constituents selected from a group of specified additives consisting of Si, Mn, Sb, Ti, Zr, Ni, Fe, W, Ce, Nb, V, Mo, Ba, Ca and Co; 0.1 to 0.8, the latter exclusive, % by weight of Cu and/or Mg; and the remainder of aluminium. The alloy can further contain 9% by weight in total of one or more constituents selected from a group consisting of Pb, Bi, Tl, Cd and In, thereby improving the bearing characteristics. Steel-backed allots according to the invention may be used for the bearings of internal combustion engines in which spheroidal (nodular) graphite cast iron is used for crankshafts.
Patent GB-2045868-A (GB)
Title: Spring force applying actuators
IPC: B60T17/08
Filed: 1980-03-05
Abstract: A spring brake actuator consists of an air pressure-responsive piston 8 and cylinder 9 arrangement and a heavy captive spring 11 which on release of air pressure applies force to a piston rod 20 for applying force to a brake and wherein the piston 8 is locked to the piston rod 20 by a locking mechanism which is releasable by the application of a rotary motion to an externally accessible member 24 to enable release of the brake force without applying air pressure. Rotation of the member 24 causes relative rotation between interengaging face cams 23, 29 and consequential leftward axial displacement of a guide member 21 slidable within piston rod 20. Such displacement releases the locking mechanism by allowing inward movement of balls 16 which latch the piston 8 to its rod 20. <IMAGE>
Patent GB-2047932-A (GB)
Title: Digitally Encoded Abnormal Tyre Condition Indicating System
IPC: B60C23/06
Filed: 1980-03-24
Abstract: An abnormal tyre condition indicating system comprising a telemetry unit (A) mounted on each wheel of a vehicle and a central receiver (B). Each telemetry unit (A) comprises a piezoelectric transducer (C) which is deflected with each wheel revolution when the tyre profile is low. Deflecting the transducer produces an electric pulse. The transducer pulses are accumulated by an accumulator D until a predetermined condition is met, such as stored charge reaching a threshold level. When the predetermined condition is met, the accumulator D produces an enable signal. The enable signal enables a digital encoder E to produce a digitally coded signal. A transmitter F modulates a carrier frequency with the digitally coded signal to produce digitally modulated radio transmission signals. The central receiver (B) receives the digitally modulated signals from each telemetry unit (A) and produces an indicia of the occurrence of the abnormal tyre condition at one or more of the wheels. <IMAGE>
Patent GB-2072538-A (GB)
Title: Emulsion applicator
IPC: G03F7/16
Filed: 1980-03-27
Abstract: A hand-held applicator for spreading an emulsion across a printing screen comprises a trough (1) with end structures (2). The end structures close the ends of the trough and act as legs on which the trough can stand in upright disposition. The trough has a rear edge (5) which is scraped across the screen during application of the emulsion. The trough (1) is formed separately to the end structures (2) so that the trough can be cut to length before the applicator is assembled. The trough (1) may be a U- shaped plastics extrusion which fits tightly in corresponding U-shaped grooves in plastics end plates. <IMAGE>
Patent GB-2051617-A (GB)
Title: Development of films in an automatic film processor
IPC: G03D3/06
Filed: 1980-06-16
Abstract: In a film processor developing tank 6 the level of developer is gradually increased by a metering pump 5 to compensate for a drop in activity of the developer. An overflow 1 is provided to a supplementary tank 4. A solenoid valve 3 between the overflow 1 and the supplementary tank 4 is closed when a film is being developed and the pump lifts developer from the supplementary tank 4 to the main tank 6. <IMAGE>
Patent GB-2056184-A (GB)
Title: Electrical generator
IPC: H02K7/00
Filed: 1980-06-20
Abstract: A heteropolar generator rotor (18, 19) for a battery-charging system forms part of a flywheel (27) of an internal combustion engine and is housed in the gearbox (25). A generator of this kind can be used to special advantage in internal combustion engines in motor vehicles. <IMAGE>
Patent GB-2052209-A (GB)
Title: White balance control for colour video cameras
IPC: H04N9/73
Filed: 1980-06-27
Abstract: A method of adjusting the white balance of a colour video camera comprises the steps of sampling a reference video signal VRF in a reference interval TB of an input video signal Vin, analog to digital converting the sampled reference signal VRF into a digital reference signal, memorizing the digital reference signal MRF in a microprocessor 30, sampling a signal in a video scanning interval Tp of the input video signal Vin, analog to digital converting the sampled signal into a digital signal, memorizing the digital signal MER in the microprocessor 30, computing the difference between the memorized signals MRF, MER, forming a white balance adjusting signal on the basis of the result of the computation thereby to perform coarse white balance adjustment, digital to analog converting the memorized digital signal in the reference interval into an analog reference signal, level-comparing the converted analog reference signal with the video signal Vin in the video scanning interval Tp of the input video signal Vin, and supplying the compared output to the microprocessor 30 to correct the white balance adjusting signal thereby to achieve the final white balance adjustment of the input video signal Vin. <IMAGE>