baber/WOPTO huggingface dataset:
Patent GB-2019026-A (GB)
Title: Liquid Crystal Display Device
IPC: G02F1/139
Filed: 1979-04-06
Abstract: In a reflective electro-optic liquid crystal display device comprising pleochroic material e.g. in a coloured polariser, or as guest material in the liquid crystal, the appearance of residual colour in the bright state is presented by incorporating in the device a balanced amount of fluorescent material with emission and absorption bands lying respectively within the absorption band and a transmission band of the pleochroic material. Actively converting the unwanted light to that of a complimentary colour provides a brighter neutral tone than if a dye of complimentary colour is present. The fluorescent material (single compound or mixture) may be in the liquid crystal and/or in a reflector, cell substrate or added polarisers, and preferably the molecules are aligned to define a polarisation direction.
Patent GB-2020169-A (GB)
Title: Collapsible airing stand
IPC: D06F57/08
Filed: 1979-05-01
Abstract: A collapsible drying and airing stand for laundry, having two pivotally connected together support legs (11, 12) in a crossed configuration, a head member (18, 19) at the upper end of each leg and a framework (15) to receive clothes to be dried or aired, coupled to the legs (11, 12) by the head members (18, 19) and having two transverse bars (17) and at least two longitudinal bars (16), one of the head members (18) being simply pivoted on one of the transverse bars (16) but the other head member (19) being slidably and angularly movably guided on two of the longitudinal bars (17) by means of guide slots provided in the head member (19). The guide slots may be provided directly in side portions of the head member (19) or in a cylindrical sleeve formed by two half sleeves and pressed into a mounting recess in the hall sleeve. <IMAGE>
Patent GB-2023236-A (GB)
Title: Hot gas engine with magnetically-moved displacer
IPC: F02G1/043
Filed: 1979-05-11
Abstract: Body 1 is heated by the combustion of gas at ring burner 14, which also preheats the incoming air. Cooled body 2 encloses the cold chamber. Displacer 4, which also operates as a heat exchanger is made of light weight construction and includes a magnetisable tube 8 so that it can be raised by electromagnet 6. Displacer 4 has a central bore 11 and heat insulating plates 10 so that it is hot at the top and cold at the bottom. With the working piston 3 in the T.D.C. position, magnet 6 is de- energised and displacer 4 is released, driving the working fluid into the hot chamber where it expands and forces down the piston and displacer. The piston 3 is returned by a buffer or the inertia of a crank system. The working piston may be coupled directly to linearly oscillating parts of a driven machine e.g. a compressor so that these parts will be substantially free of transverse forces. Where a crank drive is employed, control of the magnetic field moving the displacer may be by way of switches which are actuated by the drive, for example by cams on the crankshaft. <IMAGE>
Patent GB-2049936-A (GB)
Title: Boiler water gauges
IPC: G01F23/02
Filed: 1979-05-22
Abstract: A boiler water gauge comprises sight tubes 16 extending between steam and water manifolds 10, 12 containing valves 22, 24, 26, 28. Each manifold 10, 12 has a central recess 44, 82 extending from an inlet in a flanged tube 18, 20 connectable to boiler stand pipes. The manifolds 10, 12 also have through-bores 42, 80 interconnecting recesses 44, 82 with vertical passages 46, 84 in which ends of the gauge tubes 16 are located. The bores 42, 80 contain valves 22, 24, 26, 28 and the manifold 12 also contains valves 30, 32. The valves are operated by levers 76, 76A and their arrangement allows the gauge to be blown down to help maintain it free of deposits etc. The vertical passages 84 in water manifold 12 also contain non-return valves 90 which close under water pressure in the event of a gauge tube 16 breaking. The tubes 16 are surrounded by protective vented shields 36, 38. <IMAGE>
Patent GB-2033745-A (GB)
Title: Fatty acid and derivatives thereof in treatment or prophylaxis of thrombo-embolic conditions
IPC: A61K31/20
Filed: 1979-05-25
Abstract: (All-Z-)-5,8,11,14,17-eicosapentaenoic acid or a derivative thereof for administration to a mammal, including man, for treatment or prophylaxis of thrombo-embolic conditions, for increasing bleeding time, for disintegrating or dispersing already formed thrombi or platelet clumps for modifying or controlling adherence of blood platelets to damaged tissue, for rendering blood platelets less readily aggregatable and/or more readily disaggregatable from one another, and for adding to blood in extra-corporeal circulation. Pharmaceutical formulations contain (all-Z)-5,8,11,14,17-eicosapentaenoic acid or a pharmaceutically acceptable salt, ester or amide thereof.
Patent GB-2024927-A (GB)
Title: Lockable pivots
IPC: E05D11/10
Filed: 1979-07-06
Abstract: A latch mechanism for controlling relative movement of two hinged members about a pivot axis X, e.g. a helmet and visor comprises a first part (19) fixed to one hinged member and a second part comprising a first member (25) fixed to the other hinged member (13) and, mounted on the first member, a manually operable second member (27). On application of pressure in a direction about the axis the second member (27) pivots at 49A or 49B on the first member (25) against a spring bias (43) to disengage the second member from the first part (19) and allow the second latch part (25, 27) to move angularly with respect to the first latch part (19) under continuing pressure on the second member. <IMAGE>
Patent GB-2060953-A (GB)
Title: Automatic synchronizing of time- pieces, e.g. time switches, by radio
IPC: G04R20/24
Filed: 1979-10-02
Abstract: A time switch includes a free- running clock (31) having a timing source of its own e.g. AC mains or crystal oscillator, and switches (33, 34, 35) operated at preset times by the clock (31). A radio receiver (10-25) receives and decodes accurate time of day signals transmitted from a remote transmitter and these are used to correct or update the time of day indication of the clock (31). Switching instructions or preset switching times may also be transmitted to the receiver to programme the time clock remotely. The system is useful for controlling the switching of electrical equipment so as to use off- peak electricity. <IMAGE>
Patent GB-2036076-A (GB)
Title: Genetic Process for the Production of Antibiotic Producing Micromonospora strains
IPC: C12N15/03
Filed: 1979-11-08
Abstract: A process for the preparation of antibiotic-producer Micromonospora strains having modified genetic material, wherein following cultivation in a glycine medium, a protoplast suspension is prepared with lysozyme, under osmotically buffered conditions ensured by sucrose, from each culture of two mutants of the antibiotic- producer Micromonospora, at least one of which is genetically labelled, the two suspensions obtained are combined in the present of polyethylene glycol, and incubated at room temperature. The resulting fused protoplasts are suspended in soft agar, then plated on an agar plate containing prolin and inorganic salts, incubated for 20 to 30 days, and finally all mutants are selected from the regenerated colonies which are sure to have genetic material different from that of the parent strains.
Patent GB-2066484-A (GB)
Title: Single Pole Voltage Detector
IPC: G01R19/155
Filed: 1979-11-14
Abstract: The detector includes a contact probe 1 connected via a discharge tube 3 and capacitor 3/1 to an earth 2 which co-operates capacitively with the ground, a power source 4 supplying a voltage converter, and a luminous discharge tube 6. Main electrodes 6/1 and 6/2 of tube 6 are subject to a DC voltage stored in capacitor 5/5 and a control electrode 6/3 is connected to a relaxation circuit 7/1-7/4. The voltage converter charges capacitors 5/5 and 7/1 and comprises an oscillator having switching transistors 5/1 and 5/2 and a step-up transformer 5/3 5/4 giving an output rectified by diode 5/6. The oscillator is only triggered by input voltage to probe 1 thereby to trigger tube 6 and provide a light signal which also blocks the oscillator until a new cycle of operation. Current consumption when quiescent is negligible. An additional acoustic warning device may also be provided. <IMAGE>
Patent GB-2038061-A (GB)
Title: Event indication and indication system
IPC: G08B29/06
Filed: 1979-11-30
Abstract: The detection of events such as illegal entry detection, or the occurrence of predetermined hazards are detectable by a system including a circuit loop 2 which incorporates event actuatable switches 1A, 35, 37, 38. Each switch has associated therewith means 9A, 36, 37A, 39) for both maintaining electrical continuity in the loop, following operation of the associated switch and for producing an electrical condition in the loop which is indicative of switch operation. A control circuit 7 is arranged to respond according to the condition produced and produce an alarm characteristic of the condition. <IMAGE>
Patent GB-2064424-A (GB)
Title: Compactors for Solid Material
IPC: B30B9/30
Filed: 1979-12-06
Abstract: A compactor for compacting solids material comprises a compression chamber 13 to which the material to be compacted is fed by gravity from a feed hopper 11 through a feed opening 12 in the top of the compression chamber which is normally closed by a retractable gate 14 and a compression cylinder 17 which compresses the material into a discharge end of the chamber by a horizontal displacement of the compression cylinder through a working stroke commencing from any one of a plurality of retracted positions of the compression cylinder in the chamber, thereby to provide for a variation in the space within the chamber which is available for receiving the charge of the material to be compacted and a variation in the volume of the charge of material to be compacted, and means for preselecting any one of the plurality of retracted positions. The discharge end of the chamber is closed by a retractable door 16. <IMAGE>
Patent GB-2040112-A (GB)
Title: Splice connector housing with shield break
IPC: H02G15/103
Filed: 1979-12-18
Abstract: A splice connector housing (4) for high voltage cables has a central tubular portion (28) of insulating elastomeric material, and first and second tubular end portions (32, 36) of conductive elastomeric material, the central portion having an external surface (30), the first end portion having an outermost axially extending surface (34) forming an axial continuation of the external surface of the central portion, and the second end portion 36 having an outermost axially extending surface (38) spaced inwardly of the envelope of the external surface (30), said external surface (30) extending axially to overlap the outermost surface (38) of the second end portion around the entire circumference thereof, and said central housing portion (28) having an annular skirt part (42) radially defined by said external surface (30) and said outermost surface (38) of said second housing end portion, the skirt part (42) providing a shield break. <IMAGE>
Patent GB-2038791-A (GB)
Title: Method for making B-form aluminum trimetaphosphate
IPC: C01B35/14
Filed: 1979-12-24
Abstract: Aluminum trimetaphosphate in the B-form is prepared by reacting aluminum dihydrogen phosphate with ammonia and heating the reaction product so that the crystal structure of the heat-treated material is predominantly in the B-form.
Patent GB-2049385-A (GB)
Title: Improvements in or relating to bird-scaring apparatus
IPC: A01M29/06
Filed: 1980-03-26
Abstract: Bird-scaring apparatus 1 comprises a pivotably mounted lever 3 supporting a receptacle 4, and means 30,32,36, for supplying a controlled flow of water to the receptacle 4. The arrangement is such that when sufficient water has been supplied to the receptacle, the added weight resulting therefrom causes the lever 3 to swing about its pivot, (as indicated by arrow 40), in a bird-scaring manner. The lever 3 can be employed to operate additional bird-scaring means, for example, a mechanical bell 7 or an electrically-operated alarm and may contain ball-bearings 8 and carry streamers. <IMAGE>
Patent GB-2051033-A (GB)
Title: Coating of Gas Fire Radiant Elements
IPC: C03C8/20
Filed: 1980-04-25
Abstract: Gas fire radiant elements are coated with an enamel frit containing TiO2 or ZrO2, and the coated elements are fired to bond the coatings to the elements. Firing can be effected in situ by replacing the radiant elements in a gas fire and lighting the latter.
Patent GB-2049996-A (GB)
Title: Automatic control of fuel supply in i.c. engines
IPC: F02M7/133
Filed: 1980-05-02
Abstract: A carburettor 20, 26 is used to supply a lean air-fuel mixture through an induction passage (14) to an engine (12). A data processor (50) is provided to obtain an engine load value in accordance with engine operating variables and determine from it a desired air/fuel ratio value and control an auxiliary fuel supply means (30, 34) to supply a controlled amount of fuel into the induction passage (14) to make up for the fuel shortage so as to satisfy the desired air/fuel ratio value determined by the data processor (50). <IMAGE>
Patent GB-2056704-A (GB)
Title: Slide projector
IPC: G03B23/00
Filed: 1980-08-12
Abstract: A basic slide projector unit of the kind comprising a main box-like housing (10) on which the projection lens system (14) is mounted, an outer housing (18) extending parallel with the main housing and a slide compartment (20) formed between the housings, is provided with means (22) for the simple attachment of auxiliary housings containing ancillary equipment and having connecting means for cooperation with the attachment means (22). <IMAGE>
Patent GB-2063330-A (GB)
Title: Panel for the insulation of cavity walls
IPC: E04B1/76
Filed: 1980-09-16
Abstract: The panel, for insulating the cavity 12 between the inner wall leaf 11 and the outer wall leaf 10 of a cavity wall, comprises a drainage board 13, preferably of foamed polystyrene bead material bonded to layer(s) 14, 14' of foamed polystyrene thermal insulation material. The panel may be retained in position in the cavity by cement slurry 15, as shown, or alternatively or additionally metal or plastics wall ties may be used which pass between the abutting edges of adjacent panels. <IMAGE>
Patent GB-2089061-A (GB)
Title: Optical fibre-beam expander alignment testing
IPC: G02B6/32
Filed: 1980-12-04
Abstract: Where an optical fibre is terminated by a beam expander, as for instance in a connector, it is necessary for the fibre to have its axis accurately aligned with the axis of the expander, to ensure that the emergent beam is accurately aligned. To do this, the fibre (7) is fed from d source/detector unit (8), and a plane reflecting device (5) such as a mirror is placed normal to the beam path. Hence the beam is reflected back along its path and the return beam strength is monitored at the source/detector unit (8). When its strength is at a maximum the beam is accurately aligned, and the fibre end, which may be in a ferrule, is secured. Thus this use of the principle of auto-collination gives a simple way to adjust fibre alignment. <IMAGE>
Patent GB-2078098-A (GB)
Title: Support system
IPC: A47B57/56
Filed: 1981-06-10
Abstract: A support system for clamping in a channel of an upright member e.g. a greenhouse glazing bar, or around the edges of an upright strut e.g. an I-beam, has two support elements. Each has respective first portions to engage opposed surfaces of the upright member and respective second portions which, when the first portions are so engaged provide mutually inclined support surfaces. The attachment of a member with divergent or convergent surfaces, respectively, clamp the support elements to the upright. <IMAGE>
Patent GB-2078071-A (GB)
Title: Fishing reel
IPC: A01K89/016
Filed: 1981-06-17
Abstract: A fishing reel comprises a rotatable double-flanged line drum, the flanges of which have peripheral rim portions 9 at a smaller distance from each other than the inner side portions of the flanges defining the winding space. <IMAGE>
Patent GB-2106459-A (GB)
Title: Chassis for mobile lifting mechanisms
Inventor: SLATER GEORGE ANTHONY
IPC: B60P1/02
Filed: 1981-09-14
Abstract: A mobile boat lift 10 comprises a chassis 12 having two trailing main arms 34 each supported at its rear end by a wheel 46 and pivotally connected at its leading end to a link arm 24 which is in turn pivoted to a draw bar 15. A beam 48 is mounted above each arm on a forward strut 52 and a rear strut and is raisable by a hydraulic ram 56. A boat may be slung between the arms 34 by straps suspended between hooks 50. With lockings 26, 38 removed, forward movement of the lift 10 causes the arms to close together from the lifting position shown in Figure 3 to reduce the overall width of the chassis 12 for trailing on public roads. <IMAGE>
Patent GB-2108483-A (GB)
Title: Glass drawing
Inventor: BRICHENO TERRY
IPC: C03B37/012
Filed: 1981-10-29
Abstract: A method of making micro-optical or micro-mechanical components (e.g. fibre optic coupling devices and lenses) includes making a preform of the cross- section appropriate to the component to be manufactured either by machining to shape or by building up from separate pieces of glass, drawing the glass in a pulling furnace, and cutting the drawn glass to produce components of the desired length. Soda lime glass is suitable for lens mounts for lasers or optical fibre terminations, the preform using a cylinder of glass stuck to a mount of suitable shape. Silica glass is especially useful where the components are for use in conjunction with silica optical fibres since it gives excellent thermal matching.
Patent GB-2097066-A (GB)
Title: A diaphragm pump
IPC: F04B43/02
Filed: 1982-03-30
Abstract: To increase the discharge capacity of a diaphragm pump, particularly for high pumping frequencies, the volume of its suction chamber 19 is larger than that of the pressure chamber (21) preferably 3 times as large as described the pumps housing (1) is made of plastics material and comprises an inlet port (23) for the suction chamber (19) and an outlet port (25) for the pressure chamber (21). One or several non-return inlet valve (29) and a non-return outlet valve (31) connect a working chamber (7) to the suction chamber (21) and the pressure chamber (21). A tappet (11) acts on a working diaphragm (9) for carrying out the suction stroke against the force exerted by a spring (17). The spring (17) acts op the working diaphragm (9) for carrying out the pressure stroke. The suction chamber (19) and possibly the pressure chamber (21) are designed as annulus segments which are curved around the tappet (11). <IMAGE>
Patent GB-2099948-A (GB)
Title: Cam rings
IPC: F02M41/14
Filed: 1982-04-20
Abstract: A cam ring for a fuel injection pump of the rotary distributor type includes an annular shell 15 formed from a high grade material and a supporting body 16 of low grade material. The outer surface of the shell and the internal surface of the body are secured together with an adhesive of the epoxy or anaerobic type. <IMAGE>
Patent GB-2108056-A (GB)
Title: Vehicle with a tilting load platform
Inventor: BERTONCINI CHIRSTIAN
IPC: B60P1/64
Filed: 1982-08-04
Abstract: The load platform (11) of a lorry or trailer, especially of a breakdown vehicle, tilts and slides rearwardly until its rear edge contacts the ground. A jack (6) acts at (7) on a link (8) which is pivoted at (10) on the chassis (3) and at (9) on the platform (11). In addition, U-section rails (12) on the platform (11) run and pivot on rollers (13) freely rotatable on a fixed shaft carried by the chassis (3). Thus when the jack (6) is extended, the platform (11) tilts whilst running along the rollers (13). <IMAGE>
Patent GB-2107110-A (GB)
Title: Discharge lamps
Inventor: PAGE ROBERT BRIAN
IPC: H01J61/36
Filed: 1982-08-27
Abstract: In high pressure discharge lamps such as Xenon lamps the envelope ends are enclosed in end caps providing electrical connection and support. Existing end caps provide excessively rigid electrical connection with insufficient support allowing the risk of the quartz envelope cracking. Electrical connection of the end cap (23, 24) to the leg (3) of the quartz envelope (2) is provided by a braided wire lead (28) opened out to a wire basket disposed around the end (16) of the leg and electrically connected via a molybdenum wire (26) to the usual foil seals (21). This provides a relatively flexible connection and filling the end cap with saureisen cement (38) then provides relatively rigid support. <IMAGE>
Patent GB-2106024-A (GB)
Title: Control for pneumatic tool eg a screwdriver
Inventor: MAIRE BERNARD
IPC: F01C20/04
Filed: 1982-09-14
Abstract: A pneumatic tool (1) has a pneumatic motor (6) which can be driven selectively in either direction under the control of a trigger (30) which operates the piston (33) of a control valve. When the trigger (30) is moved anticlockwise from a central point, the valve allows compressed air to pass from coupling (3), through duct (60), the valve, ducts (66, 16 and 17) to drive the motor in one direction. Movement of the trigger (30) in the opposite sense directs the compressed air from duct (60) to duct (67) and thence via chamber (68) and passages (24 and 25) to drive the motor in the opposite direction. <IMAGE>
Patent GB-2130822-A (GB)
Title: On-chip CMOS bridge circuit
Inventor: DALY CHRISTOPHER N
IPC: H02M3/157
Filed: 1982-09-16
Abstract: The bridge circuit finds particularly advantageous use in medical prostheses which can be programmed externally and which can transmit telemetry signals. The entire circuit is implemented on a single CMOS integrated circuit. Depending upon the values of two control bits supplied to X1 and X2, the bridge circuit functions to derive a DC powering potential at a storage capacitor C2 from an externally transmitted AC signal at a coil L1, with or without regulation. Externally transmitted programming signals are detectable, and telemetry signals can be transmitted from the chip as well. There is no active switching of bridge device P1, P2, N1, N2 during power rectification mode, and instead they are biased on continuously. This allows the rectifier to operate at carrier frequencies as high as several megahertz. All of this is achieved by using conventional CMOS processing techniques, without requiring any extra diffusion steps. <IMAGE>
Patent GB-2111770-A (GB)
Title: A jack plug socket
Inventor: KUWABARA MASAMI
IPC: H01R13/70
Filed: 1982-12-09
Abstract: A jack plug socket comprises a housing (1) having a jack plug insertion port with first switch means (16, 17) disposed adjacent the jack plug insertion port. The first switch means (16, 17) are adapted to be operated by insertion of a jack plug (P) and the socket also comprises tip contact means (15) biased so as to contact the tip (P3) of a jack plug (P) fully inserted into the jack plug socket. The jack plug socket further comprises a second switch means (30) adapted to be operated by displacement of the tip contact means (15) resulting from full insertion of the jack plug (P) and which second switching means (30) resiliently biases the tip contact means (15) for the said contact with the jack plug (P). It will be evident that upon insertion of the jack plug (P) into the socket there will be a time delay between operation of the first switch means (16, 17) and the second switch means (30). Such an arrangement is particularly advantageous for use with equipment in which it is desired to avoid howling while monitoring directly from the equipment while a recording is being made using that equipment. The loudspeakers of the equipment are connected to the first switch means (16, 17) and a muting circuit of the equipment in connected to the second switch means (30). <IMAGE>