baber/WOPTO huggingface dataset:
Patent GB-2143639-A (GB)
Title: Perspective clinometer
Inventor: TOWNSHEND JOHN DEREK STAFFORD
IPC: B43L13/18
Filed: 1983-07-20
Abstract: A hand-held clinometer by means of which the apparent slope as seen by the artist between two identifiable features of the subject or view to be drawn can be immediately related to verticality and thence transferred with facility to a drawing. By triangular combination the essential features of the drawing may be set in accurate perspective relation without need for the training or inherent skills otherwise required. A pendulum member 8 is engaged with a sighting member 1 so as to be freely rotatable through an arc preferably of 180 DEG . There is means 19 of restraining the rotation of the pendulum at any angular position within the permitted rotation, releasable by finger and thumb pressure, or an indication of the angle may be recorded electronically. After sighting, the clinometer is laid upon the drawing paper with the edge 17 of the pendulum member 8 parallel with the side of the paper. The sighting member then indicates the apparent slope between the features to be reproduced on the drawing. <IMAGE>
Patent GB-2137553-A (GB)
Title: A tubular object of polyethylene terephthalate
Inventor: JAKOBSEN KJELL MOSVOLL
IPC: B29C48/92
Filed: 1983-10-10
Abstract: A tubular object of polyethylene terephthalate is produced from a blank of amorphous material by reducing the thickness of and orienting the material of the blank in one or several areas. A mechanical shaping device (23, 71, 81) moves a transitional zone (13, 14, 113) situated between thicker and thinner material along the blank and simultaneously elongates and orients the blank in the axial direction. The mouth of the tubular object may also be thinned and oriented. <IMAGE>
Patent GB-2134536-A (GB)
Title: Treatment of hydrocarbons in the presence of a catalyst with a base of alumina balls shaped by oil drop
Inventor: FRANCK JEAN-PIERRE
IPC: C10G35/085
Filed: 1983-12-16
Abstract: Hydrocarbons are treated in the presence of a solid catalyst containing (a) a carrier with at least alumina as basic material and (b) an active phase containing at least one noble metal from group VIII of the periodic classification of elements and at least one additional metal, the alumina being at least partly shaped as balls whose manufacture involves a shaping by oil drop of an aqueous suspension or dispersion of alumina, or of a solution of a basic alumina salt, in which the aqueous alumina suspension or dispersion or the basic aluminium salt solution is an emulsion of the oil-in-water type, the emulsion viscosity being from 100 to 800 centistokes and the emulsion, formed of an organic phase, an aqueous phase and a surfactant or emulsifier, being such that the proportion of organic phase in the aqueous phase (or "hydrocarbon/free water ratio") ranges by volume, between 1 and 10%.
Patent GB-2153586-A (GB)
Title: Gate turn-off thyristor
Inventor: ANDERSON THOMAS ALEXANDER
IPC: H01L29/74
Filed: 1984-01-31
Abstract: A gate turn-off thyristor having an array of anode shorts 5 arranged, preferably, in concentric circular formations 11 and a cathode region 4 comprising an array of substantially linear elements parallel to a radius and, divided into a number of sub-arrays each bounded by a sector of a circle having a centre co-incident with the anode formations. Preferably the included angle of a cathode array sector is no greater than sixty degrees and the cathode strips subtend an angle with respect to a radius which is no more than thirty degrees. Thus, the dynamic characteristics of the device are rendered, to a great extent at least, independent of the relative angular orientation of the anode and cathode formations. <IMAGE>
Patent GB-2137034-A (GB)
Title: Elevator Driving Apparatus
Inventor: NOMURA MASAMI
IPC: H02P23/24
Filed: 1984-03-13
Abstract: The apparatus comprises a motor 5 coupled to a winder 20 which takes up a suspension member 3 for supporting a cage 1, and control means is employed to selectively connect to the motor either a three-phase A.C. power source RST for energizing the motor to raise the cage, or a single-phase A.C. power source obtained by rendering one phase of the three-phase A.C. power source nonconductive, so as to lower the cage and decelerate the cage in the ascent direction. This elevator driving apparatus is simple and does not have to change the phase sequence of the power source between the ascent operation and the descent operation. A counterweight for the cage can be omitted. <IMAGE>
Patent GB-2139923-A (GB)
Title: A method of making an endless steel belt
Inventor: VAN ROOIJ JACOBUS HUBERTUS MAR
IPC: F16G1/20
Filed: 1984-05-04
Abstract: A ring of non-alloyed or low alloyed carbon steel is subjected to a patenting treatment and is brought to the desired dimension and thickness by one or more cold reduction steps in a rolling treatment using a stretching roller 10. The ring may be formed by deep drawing steel sheet to form a cylindrical part from which successive rings 7 are separated. <IMAGE>
Patent GB-2149254-A (GB)
Title: Ultrasonic transducer assembly
Inventor: BROOMFIELD GEOFFREY HUGH
IPC: H04R3/00
Filed: 1984-10-16
Abstract: An ultrasonic transducer assembly 10 comprises a piezo- electric transducer 12 connected by a cable 20 of length "I" to an inductor 26 of inductance "L". The values of the length "I" and the inductance "L" are adjusted so that the frequency at which the impedance of the assembly 10 is a minimum is equal to the frequency at which the impedance of the transducer 12 alone is a minimum. The transducer 12 may be a lithium niobate transducer, with a Q value of about 5000. <IMAGE>
Patent GB-2175263-A (GB)
Title: Propulsion of ships
Inventor: COLE DAVID ARTHUR
IPC: B63H19/02
Filed: 1985-05-22
Abstract: A ship, e.g. a bulk cargo carrier, which uses power from the waves of the sea or other water on which it travels, comprises a hull (14) containing at least one cargo container or hold (10) each mounted so as to rock slightly upon supporting pistons fitted between girders (18) within a compartment of the hull. The hydraulic pistons are placed at the side (16) and beneath (22) each hold and are actuated by pressure of the hold as the hold moves; the pistons are linked by hydraulic pipelines (24, 25) to an engine room where gear wheel pumps are driven which drive a propeller and optionally electric power is generated. Each hold preferably is circular, tapering slightly so as to be narrower at the top, with a slightly conical base so as to rock from side to side and fore-and-aft; beneath each hold is one or more circles of pistons. An auxiliary engine can be fitted for use in calms and harbours; but otherwise no fuel is needed to propel the ship.
Patent GB-2162263-A (GB)
Title: Improvements in dual hydraulic braking systems for vehicles
Inventor: CAMPBELL ROY
IPC: B60T11/18
Filed: 1985-06-18
Abstract: An hydraulic braking system incorporates a pair of tandem master cylinders (1, 2), with primary pressure spaces (18) connected to brakes (41 and 42) on the rear wheels of the vehicle, and secondary pressure spaces (20) both connected to an isolator valve assembly (50) having an outlet (61) connected to brakes (63, 64) on both front wheels of the vehicle. The isolator valve (50) has a flow- conscious valve member (67) provided with opposed heads (68, 69) for alternative engagement with spaced seatings (65, 66) on opposite sides of the outlet (61) to isolate the secondary pressure space (20) of one master cylinder from the brakes (63, 64) when that one master cylinder is operated on its own and the valve member (67) is provided with flow paths (73) permitting flow past the heads (68, 69) to the brakes (63, 64) when both master cylinders are operated simultaneously. Since only a relatively small volume of fluid is expelled from a secondary pressure space (20) to affect operation of the isolator valve assembly (50), pedal travel is reduced to a minimum. <IMAGE>
Patent GB-2165474-A (GB)
Title: Casting low-melting point alloy
Inventor: PASCOE GRAHAM
IPC: B29C33/52
Filed: 1985-09-25
Abstract: 57 A casting is made from a low melting point alloy having a solidus temperature in the range of 35 - 300°C by subjecting a charge of molten alloy to pre-pressurisation then delivering the charge at a flow rate of 0.1 to 1 kg/sec into a die and maintaining the metal in the die under pressure for a time in excess of that required to fill the die.
Patent GB-2166033-A (GB)
Title: Mowing machine
Inventor: UNGER GERRIT
IPC: A01D34/30
Filed: 1985-10-24
Abstract: A mowing blade drive for a harvesting machine, for example an automotive mowing and chaff-cutting machine or a combine-harvester, is variably mountable and detachably assembled in unit mode of construction from two housing halves (6, 6'), the resulting housing being fastened between two partition plates (3, 3') in the central region of a base frame arranged underneath a cutting mechanism trough. A crank sheave (11), which has a crank pin (12) equipped with connecting rods (13, 13') and which is connected with a drive shaft (9), and an eccentric sheave (14) are mounted in the housing. Received between bearing arms (21, 21') pointing forwardly in fork-like manner are ball- and-socket bearing bushes of the angle levers (19, 19'), which at one arm are connected by bearings (17, 17') with the connecting rods (13, 13') and at the other arm by bearings (24, 24') with mowing blades (25). The drive is covered by a cover plate provided with presser members exerting a pressure on the blade. <IMAGE>
Patent GB-2167625-A (GB)
Title: Remote subscriber interaction system
Inventor: JAMES ROLLAND T
IPC: H04M11/04
Filed: 1985-03-12
Abstract: A system for monitoring conditions of instrumentalities at subscriber premises. A central control unit, scanner (18), is connected across a set of subscriber loops (14-16).At each subscriber's premises, an individual subscriber terminal unit STU (22-24) is connected across the particular subscriber's loop (14-16). To each STU (22-24) are connected the various instrumentalities which are to be monitored by the system, e.g., signal sources (41-43) such as fire alarms, burglar alarms, etc. A signal below the audible range (low tone) is produced at the STU (22-24), and transmitted to the scanner (18), over the telephone loop if, but only if, all the instrumentalities at the particular subscriber premises are in a given state (e.g. non-alarm). If not, low tone is stopped. Such stoppage is sensed by the scanner (18), and causes immediate transmission of FSK modulated signals in the upper part of the audible range from the scanner (18) to the corresponding STU (22-24), whether the associated telephone is on-hook or off-hook at the time.The reply from the STU (22-24), to such transmission provides information about the reason for the stoppage, i.e. what is the source of the alarm. This system provides efficient monitoring of subscriber instrumentalities without using signals audible during normal telephone usage or special filtering in the telephone network.
Patent GB-2169768-A (GB)
Title: Alignment technique
Inventor: GACHTER DR BERNHARD F
IPC: G01S17/42
Filed: 1985-12-19
Abstract: In a method of aligning a measuring instrument (1) with a radiation-reflecting target (2), the measuring instrument emits a direction-modulated target beam (S1). A received beam (S2) reflected by the target (2) is demodulated as a function of the modulation criteria of the transmitted beam and is evaluated with respect to its phase position. The result of this evaluation is used for deriving a control signal for the direction tracking of the measuring instrument. The demodulated signal is evaluated with respect to its phase and as a function of amplitude values for deriving control signals for the directional tracking of the target beam. In apparatus for performing the method, an element (12) modulating the beam direction in controlled manner is provided in the transmitted beam path and a demodulator (23) is arranged in the received beam path, which is synchronized with the modulation frequency of the beam modulating or deflecting element (12). <IMAGE>
Patent GB-2168847-A (GB)
Title: Semiconductor devices
Inventor: KATO YOJI
IPC: H01L21/338
Filed: 1985-12-20
Abstract: A high electron mobility transistor in which a threshold-voltage Vth is substantially zero comprises a GaAs substrate (1), a GaAs layer (2) of a low impurity concentration formed on the substrate (1), an AlGaAs layer (13) of a low impurity concentration formed on the GaAs layer (2), a gate electrode (5) of silicon or a compound of silicon and a metal formed on the AlGaAs layer (13), and a source electrode and a drain electrode (8, 9) formed on the AlGaAs layer (13). Other semiconductor materials e.g. AlGaIn or AlInP may be used for the layer (13). <IMAGE>
Patent GB-2184825-A (GB)
Title: An exhaust gas cooler
Inventor: BARNES BARRY WILLIAM
IPC: F28F27/02
Filed: 1985-12-23
Abstract: An exhaust gas cooler (1) includes a heat exchanger (10) for cooling the exhaust gas of an i.c. engine. in order to prevent overcooling of the exhaust gas, two separate flow paths (8, 9) are provided. One of these flow paths (8) includes the heat exchanger (10) whilst the other of the flow paths (9) by-passes the heat exchanger (10). The ratio of exhaust gas flowing along the two flow paths (8, 9) is controlled by a control means (14, 15, 16) which may include a bi-metallic strip (15). <IMAGE>
Patent GB-2184979-A (GB)
Title: Method and apparatus for baling
Inventor: MILNES MICHAEL DENNIS BENTON
IPC: B30B9/30
Filed: 1986-01-07
Abstract: Baling apparatus 10 for woodshavings and sawdust comprises a filling hopper 12 to receive woodshavings and sawdust from a cyclone or conveyor. A piston 16 is actuated by an hydraulic ram 18 in a press chamber 14. A retractable gate member 44 forming one wall of the press chamber permits sequential compression and then ejection of bale material into a packaging device in which the baled material is pushed into a discharge tube 56 over which a polythene bag 58 has been inserted. The bag is closed by wire closures, staples or the like. <IMAGE>
Patent GB-2241307-A (GB)
Title: Sabot projectile
Inventor: GEORGE JAMES CHATTLEY
IPC: F42B14/06
Filed: 1986-02-20
Abstract: A penetrator rod for an APFSDS round, having a nose at its front end and at its rear end a formation for attachment of a fin tail, has on its surface along a substantial portion of its length a male screw thread 11 such that at the mid-diameter of the screw thread the average space between adjacent thread turns is greater than the average thickness of the thread turns. The ratio of screwthread pitch to thickness of screwthread turn at the mid-diameter may be greater than 3. The sabot has a complementary female screwthread 13. <IMAGE>
Patent GB-2174591-A (GB)
Title: Waste containment garment having elasticized barrier wall leg flaps
Inventor: HASSE MARGARET HENDERSON
IPC: A61F13/49
Filed: 1986-04-24
Abstract: A waste containment garment such as a disposable diaper (20) or a disposable adult brief having elasticized leg flaps (28) which are configured and disposed to present longitudinally extending, inboard facing barrier walls (26) that are positioned outboard from the side edges of the crotch portion of the absorbent core (23). Such barrier walls (26) function as dams against lateral flow of body wastes, particularly of a runny solids nature.
Patent GB-2174999-A (GB)
Title: Resin composition comprising barium sulphate
Inventor: SHINOZUKA KIYOSHI
IPC: C08K9/02
Filed: 1986-05-30
Abstract: Resin compositions comprise a resin and barium sulphate in platelet form in an amount of not more than 50% by weight of the resin. The BaSO4 platelets have specified dimensions. A method of producing surface-treated barium sulfate is disclosed which has an improved dispersability in resins and coating compositions. The method comprises adding an aqueous solution of an alkali silicate to an aqueous slurry of barium sulfate which contains barium ions in excess to deposit barium silicate on the surface of barium sulfate, and then adding to the slurry a mineral acid to decompose the barium silicate to hydrous silica. The thus surface-treated barium sulfate may be further coated with hydrous metal oxides such as alumina or with a silane coupling agent so as to have a more improved dispersability.
Patent GB-2178769-A (GB)
Title: Bleaching improving composition
Inventor: KYOCHIKA NAOKI
IPC: B29C48/305
Filed: 1986-08-05
Abstract: A bleaching improving composition particularly suitable for cellulose fibers comprises (a) a polymer, a copolymer or a salt thereof of maleic acid, acrylic acid or methacrylic acid and     (b-1) a saccharose alcohol having the formula:  CH2OH(CHOH)nCH2OH  in which n is an integer of 2 to 6,   (b-2) an aldonic acid having the formula:  CH2OH(CHON)nCOOH  in which n is an integer of 2 to 6,   (b-3) a water-soluble salt of the alcohol or the acid or   (b-4) a lactone of the alcohol or the acid.   The composition is added to bleaching agents comprising hydrogen peroxide, alkali and sodium silicate.
Patent GB-2193589-A (GB)
Title: Electric switching circuit
Inventor: FULKS GARY CHRIS
IPC: B60R16/023
Filed: 1986-08-06
Abstract: An electric switching circuit comprises: an electronic control unit (1) having an input terminal (2) and connected to electric apparatus (7) to be actuated; a first switch (3) connected between the input terminal and a line at a first predetermined voltage level; and a second switch (4) connected between the input terminal and a line (5) at a second predetermined voltage level (B+) which is different from the first predetermined voltage level; the electronic control unit monitoring an input signal at the input terminal to determine if the first switch is closed, or if the second switch is closed, or if neither switch is closed, and actuating the electric apparatus in accordance with the monitored voltage level. <IMAGE>
Patent GB-2180506-A (GB)
Title: Writing or painting instrument
Inventor: IWASE YASUYUKI
IPC: A45D34/04
Filed: 1986-08-07
Abstract: In a writing or paint instrument, a valve unit 8,9,11 is operated by moving a valve stem 6 of the valve unit through a push-out unit provided in a rear end portion of the instrument, which valve unit is interposed between the liquid reservoir portion 17 and the liquid-application member 15 of the instrument in order to control an amount of feeding liquid. The member 15 may be, as shown, of felt-tip construction. Valve stem 6 may be extended to the rear end of the reservoir by an attached tube 13, which cooperates with bellows construction 2 to provide the push freedom. Ball 18 may be provided to mix the liquid. <IMAGE>
Patent GB-2194981-A (GB)
Title: Service chamber for underground stopcock housing
Inventor: TOYE PETER
IPC: E02D29/12
Filed: 1986-09-06
Abstract: A service chamber for an underground stopcock housing comprises a base (10) which engages the stopcock and its associated pipe and is connected to a corrugated tube (11) which extends upwardly from the base and which interlocks with the surrounding ground. In this way, torque applied to, say, the stop cock is resisted by the ground via the base and the tube. This prevents the pipe being damaged as a result of the application of such torque, for example, on opening or closing of the stop cock or on removal of a valve assembly of the stop cock for its replacement by a water meter.
Patent GB-2181869-A (GB)
Title: Pressure regulating system for lasers
Inventor: BOWES DONALD
IPC: B23K26/10
Filed: 1986-10-27
Abstract: An active pressure controller 32 (Fig. 8) for a gas lasing medium uses a pressure sensor 30, an electronic processor 32, and a motor-driven needle valve 14 to maintain the pressure of the gas lasing medium in the laser 10 within the desired operating pressure range. The laser 10, Fig. 1 has a support tube (40, Fig. 2a, 2b) supporting and maintaining the alignment of the optical resonator structure 24, the tube containing the gas lasing medium and being in communication with the discharge tube 26 in which lasing occurs. An active temperature controller maintains the gas lasing medium in the tube 40 at a substantially constant temperature above ambient by means of a temperature sensor 20 and a servo 22. The laser can be switched in operation from a continuous mode to a pulsing mode. An active power control system (Fig. 10) maintains the power output of the laser at the desired level, through an active feedback loop in which the output beam is used to generate a voltage signal for control of discharge current. Because the optical resonator structure 24 is light weight, it can be mounted on a movable mechanical assembly (155 Fig. 11) for delivery of the beam to a desired location. Laser apparatus (Figs. 11 to 14) includes linked relatively movable members with reflecting mirrors in the joints for transmitting the laser beam. The laser may form part of a distributive lasing system comprising a centralized pump 36 delivering the lasing medium to a plurality of remotely located optical resonator structures 24, each of which may have a separate heat exchanger 18 (Fig. 16b). <IMAGE>
Patent GB-2186085-A (GB)
Title: Vibratory digital integrating accelerometer
Inventor: BOXENHORN BURTON
IPC: G01C19/56
Filed: 1986-11-21
Abstract: An accelerometer transducer 100 has a base (101) holding a sheet (102) normal to an input axis (Z). The sheet is suspended from the base by a first spring arrangement (103) for oscillatory motion in the way of limited angular excurions about a central axis (Y) lying in the sheet. A weight (107) is spring-suspended from the sheet in a manner permitting displacement of the centre of gravity of the weight along the input axis. Acceleration along the input axis varies the moment of inertia of the assembly consisting of the sheet and the weight about the central axis, altering the frequency of oscillatory motion by an amount functionally related to the magnitude of the acceleration. Electrostatic, electromagnetic or piezoelectric means are provided to drive the sheet at its characteristic frequency and further means (e.g. optical) to measure its frequency of oscillation. Weight (sheet portion) (107) has a mass imbalance with respect to its central (X) axis, resulting in pendulous motion about this axis with accelerations along the input axis (Z). <IMAGE>
Patent GB-865462-A (GB)
Abstract: 865,462. Variable capacitors. OXLEY, R. F. Nov. 20, 1958 [Dec. 5, 1957], No. 37886/57. Class 37. A variable capacitor comprises electrodes constituted by a piston 14 movable axially within an insulating cylinder 10, and by a thin film of conducting material 11 coated upon part of the cylinder bore; a thin film of dielectric material being deposited either upon the piston surface or upon the conducting film 11. A silver film 11 is applied both internally and externally to one end of a glass tube 10, the film extending over the tube edge, and a connecting wire 13 is soldered to the external film. A piston 14 is coated with a thin film, 0.001 to 0.005 inch, of polytetrafluoroethylene and is mounted on a threaded piston-rod 17 passing through a bush 16 to which the glass rod 10 is secured; the assembly being clamped to a chassis-plate 20 constituting the other terminal of the capacitor. In a modification, the silver film 11 is coated with a thin dielectric film of polytetrafluoroethylene, the film over the piston being either omitted or retained.
Patent GB-2186614-A (GB)
Title: A haulage vehicle for bridge parts
Inventor: BEIER GUENTER
IPC: E01D15/127
Filed: 1987-02-13
Abstract: A haulage vehicle (1) for bridge deck sections (3), especially cantilever deck sections, wherein each section is held in a transfer frame (2, 16, 17) on the vehicle and is movable into a predetermined laying position (4) from which it can be moved off the vehicle with the aid of a conveying device (2) mounted on the vehicle or by a gripping and/or transporting device (12) on a laying boom (7) and can, in one operation, be joined and laid. <IMAGE>