baber/WOPTO huggingface dataset:
Patent GB-2035165-A (GB)
Title: Casting in gas permeable moulds
IPC: B22D18/06
Filed: 1979-09-27
Abstract: Metal is rigid, self supporting, gas permeable moulds (e.g. shell moulds) with one or more mould cavities (34) for moulding one or more parts, in which the mould cavities have gate passages open at their lower ends (35), by applying a reduced pressure to the upper surface of the mould and submerging the lower ends (35) of the gate passages beneath the surface of molten metal to fill the mould cavities with molten metal to produce unconnected metal parts or groups of parts. After filling the mould is withdrawn from the molten metal before deterioration of the mould due to heat can occur. <IMAGE>
Patent GB-2040628-A (GB)
Title: A clock pulse circuit
IPC: G06F1/10
Filed: 1979-11-28
Abstract: A clock network for LSI chips of a data handling network comprises a pulse producing circuit on each LSI chip (12, 14) responsive to the leading edge of a master clock signal to produce local clock signals whose pulse durations are dependent, at least in part, on the manufacturing and environmental conditions of the LSI chip.The pulse producing circuit on each LSI chip consists of a plurality of delay networks (22, 24, 26; 22a, 24a, 26a) and a NOR gate (28; 28a), so arranged that the gate is set to produce the leading edge of the local clock pulse coincident with the leading edge of the master clock pulse, and will produce the trailing edge of the local clock pulse upon a delay dependent, at least in part, upon the manufacturing conditions employed in the fabrication of the chip and the environmental conditions to which the chip is subjected. <IMAGE>
Patent GB-2065028-A (GB)
Title: Method and apparatus for producing sheet material
IPC: B29C48/32
Filed: 1979-12-12
Abstract: In a method and apparatus for making a bilaminar sheet 20 having raised pockets 48 therein containing a gas, a molten thermo-plastic material is extruded, through a cylindrical nozzle having an annular circular slot opening to form a hollow tube. The extruder has a plurality of heaters 24 around the slot to maintain the temperature of the extruded material at different temperatures as it exits, to form a molten tube having a plurality of linear sidewall portions of unequal thicknesses, which adjust to a uniform thickness prior to collapse. Concomitantly with the extrusion, a pressurized gas is discharged into the extruder through a central opening to fill and expand the tube which is then passed between two parallel rollers 26, 64 to collapse and flatten it into a sheet. At least one of the rollers has a plurality of spaced-apart recesses 28 on its outer surface to form raised pockets containing the gas. <IMAGE>
Patent GB-2065567-A (GB)
Title: Kit for constructing a picture
IPC: B44C1/18
Filed: 1979-12-18
Abstract: A kit of parts for constructing a picture comprises a board having a preselected diagram (1) marked thereon (e.g. a Mexican Macaw) and divided into a plurality of referenced segments (2), and a plurality of shaped members (felt feathers) adhesively bonded to the board. <IMAGE>
Patent GB-2040043-A (GB)
Title: Method for monitoring pregnancy in milk-producing domestic animals
IPC: G01N33/74
Filed: 1979-12-19
Abstract: A method for monitoring pregnancy in a milk-producing domestic animal comprises determining the concentration of oestrogen conjugates, especially oestrone sulphate, contained in a sample comprising, or derived from, the milk of the animal and comparing this concentration with the average concentration of oestrogen conjugates in the milk of a non-pregnant similar animal of the same species. There is also provided a method for monitoring foetal well-being during the later stages of pregnancy which comprises, in addition, comparing the measured oestrogen conjugate concentration with that expected during a normal pregnancy. Furthermore a kit is provided for use in the method of the invention comprising assay reagents for determination of oestrogen conjugates or corresponding oestrogens which reagents are characteristically compatible with milk- derived samples or especially milk.
Patent GB-2067623-A (GB)
Title: Method for supporting buildings
IPC: E02D35/00
Filed: 1980-01-23
Abstract: Pairs of piles (25, 26) are formed adjacent a subsided wall (10, 11). Pile cap members (24), which may be integral arms of a concrete ring beam (23), extend across the top of the piles of each pair to support the wall. A horizontal line of weakness (30) is cut along the wall above the cap members and hydraulic expansion devices are inserted in openings (31) along the line. The wall is lifted by means of the devices and is retained by steel rods in the lifted position. This method of underpinning and lifting has the advantage over conventional methods of avoiding undermining of the existing footings. <IMAGE>
Patent GB-2062257-A (GB)
Title: Optical Torque-measuring Device
IPC: G01L3/12
Filed: 1980-05-16
Abstract: The device comprises two discs co-axial with and fixed to a shaft subjected to torque. The discs are attached to the shaft at axially-spaced locations. One of the discs bears a line raster comprising radial lines (11- 18) and the second disc has raster of lines (21-28) inclined at a small angle ( alpha ) to the lines of the first disc so that the lines of one disc, when viewed along a line parallel with the shaft, appear to intersect with those of the other disc at a point intermediate two radial distances (r1, r2). Differential angular displacement of the two discs due to twisting of the shaft, shifts the points of intersection; and photo- optical means are used to detect the extent of the shift, from which torque is then derived. <IMAGE>
Patent GB-2078588-A (GB)
Title: Surface Finishing of Seat for Nut in Metal Component
IPC: B24B39/00
Filed: 1980-06-18
Abstract: The seat is cut first of all by means of a cutting tool (not shown), which extends across the width of the seat, and which is rotated about the axis of the hole. The tool illustrated is then used to compression burnish the seat. A rod 12 of tungsten carbide which is mounted in the end of the tool is pressed against the seat so that the spring 8 biases it against the seat. The tool is rotated about the axis of the hole to sweep over the annular surface and press it flat. <IMAGE>
Patent GB-2055810-A (GB)
Title: Improved acetoxylation process for the preparation of ethylene glycol esters
IPC: B01J27/00
Filed: 1980-06-27
Abstract: An improved acetoxylation process is provided for the liquid phase preparation of ethylene glycol esters which process comprises reacting ethylene, molecular oxygen and acetic acid at a temperature of from 125 DEG C. to 200 DEG C. in the presence of a catalyst comprising tellurium and an appropriate source of bromide ions to give increased rates of reaction and minimize the production of higher molecular weight (glycolic acid-ethylene glycol ester) polymeric by-products as well as other heavy materials, and wherein the oxidation reaction is maintained at a partial pressure of oxygen of from 2 to 10 psia at the reactor outlet and a partial pressure of ethylene of from 15 to 50 psia at the reactor outlet with a total concentration of tellurium cation in the reaction system of between 0.1 to 0.5 wt % based on the total reaction mixture.
Patent GB-2080531-A (GB)
Title: Testing Honeycomb Structure
IPC: G01N29/14
Filed: 1980-07-19
Abstract: A method of testing a honeycomb sandwich structure, such as a honeycomb filled fan blade for a gas turbine, uses acoustic emission from any defects present. In the method a transducer (19) is attached to the structure and the output from the transducer, amplified and converted into an audible signal, is listened to while the workpiece is strained. When defects are present the audible signal has a characteristic sound. <IMAGE>
Patent GB-2053918-A (GB)
Title: Novel Area Compound
IPC: C07H13/12
Filed: 1978-07-31
Abstract: This invention provides compounds of the general formula:-   <IMAGE> wherein R<1> is straight or branched alkyl of one to six carbon atoms, straight or branched hydroxyalkyl of one to six carbon atoms, straight or branched alkenyl of three to five carbon atoms or straight or branched alkynyl of three to five carbon atoms, R<2> is aldo-pentofuranosyl, aldo- pentopyranosyl, aldo-hexopyranosyl, O-aldo-hexopyranosyl-(1->4)-aldo- hexopyranosyl or a group of the formula: -CH2(CHOH)nCH2OH, and n is zero or one to four which are useful as intermediates in the preparation of the compounds claimed in our copending Application No. 31712/78.
Patent GB-2062124-A (GB)
Title: Fluid driven oscillator and hammer device
IPC: F15B15/28
Filed: 1980-10-10
Abstract: In a fluid driven oscillator and hammer device the position of the piston 3 relative to the pressure cylinder 2 is detected by an array of discrete position sensing units 14, the array extending in the direction of travel of the piston rod, and each sensing unit being capable of providing sensory data in the form of digital electrical signal. Electronic processing means 15 analyses the electrical signal output from the sensing unit and provides electrical signal inputs to control valve means 11 governing the supply of driving fluid to the oscillator. Conveniently the position sensing units are carried by the pressure cylinder and the piston rod carries means which co-operate with the sensing units to provide an indication to each unit in turn of the position of the rod along its travel. The position sensing units may be light emitting diodes, each with a phototransistor to receive light from reflecting regions on the piston rod. Alternatively the sensing units may be proximity sensing switches or micro- switches which may be mechanically triggered by trips carried by the piston rod. <IMAGE>
Patent GB-2085432-A (GB)
Title: Process for the purification of raw caprolactam
IPC: C07D201/16
Filed: 1980-10-14
Abstract: A process for the purification of raw caprolactam obtained by extraction with alkylated phenols from its sulphuric solution, re-extraction with water, oxidation preferably with KMnO4, evaporation of water and distillation, comprises, before the oxidation treatment, a "fast distillation", in the presence of an alkali. The oxidation is preferably conducted at 0-80 DEG C and atmospheric pressure with 0.005-0.5% by weight of KMnO4. In a preferred embodiment the amount of alkali (NaOH) used in the fast distillation is comprised between 0.05 and 0 &cirf& 5% by weight. By 'fast distillation' is meant an operation in which the evaporated material is substantially not refluxed to the evaporation zone.
Patent GB-2093594-A (GB)
Title: A sensor for detecting presence or absence of a liquid
IPC: G01F23/24
Filed: 1981-02-21
Abstract: A liquid sensor comprises a first circuit (1) having a resistance defined by a pair of spaced electrodes (3), (4) and varied by the presence or absence of the liquid to be detected therebetween, which resistance affects an output signal of the first circuit, and a second circuit (8) which operates according to the output signal from said first circuit (1). The presence of liquid causes transistor 7 to conduct so that a high signal is fed to AND gate 9 and NAND gate 11, to the other inputs of which is applied a high signal from source 5. Thus a signal is fed to LED 10. Conversely in the absence of liquid NAND gate 11 feeds a signal to LED 12. In a liquid level indicator a plurality of such sensors may be arranged at different levels within a container. The first electrodes of the sensor may be constituted by a metal tube with the second electrodes in the form of insulated bolts passing through the tube wall. <IMAGE>
Patent GB-2076522-A (GB)
Title: Igniter torch for gas burner
IPC: F23Q3/00
Filed: 1981-05-13
Abstract: To ignite the gas burners e.g. of kilns or furnaces there is positioned adjacent each burner one end of an igniter torch comprising a long tube in which an electrode is centrally supported by insulators. A mixture of air and gas is passed down the tube and ignited adjacent the burner by a spark generated by the electrode. When the igniter torch is now turned off there is a danger of "blow back" as the combustible mixture remaining in the tube is burnt, with consequent damage to the insulators supporting the conductor. The invention resolves this problem by automatically "purging" the torch tube with air after the gas supply has been turned off. In the arrangement illustrated valves 3 and 4 for supplying air and gas, respectively, to an igniter torch (not shown) are commonly controlled by the admission of compressed air to a line 43, so that actuators 41 and 42 will operate the valves 3 and 4. However a delay device 50 is included in the branch of line 43 which controls actuator 41 which delays the venting of air from actuator 41 longer than from actuator 42, so that air valve 3 remains open longer than gas valve 4 when control actuator 47 is closed. In a second embodiment the gas and air valves are controlled by jointly energised solenoids, and the solenoid controlling the air supply has a time delay circuit. <IMAGE>
Patent GB-2098747-A (GB)
Title: Measuring chain tension
IPC: G01L5/08
Filed: 1981-05-14
Abstract: A device for tensioning hydraulically a chain along which a coal working machine 10 is hauled includes a piston and cylinder device 16, the cylinder 20 being fixed and the piston 18 being attached to and adapted to tension the haulage chain 12. To determine the tension in the chain an auxiliary piston is located within the cylinder, and in operation, in abutment with the main piston, causes fluid trapped between it and the cylinder end to be pressurised in proportion to the chain tension so that by reading said pressure the chain tension can be determined. <IMAGE>
Patent GB-2084306-A (GB)
Title: Cooling Apparatus
IPC: F25B9/00
Filed: 1981-06-23
Abstract: Apparatus for producing low temperatures has an oil-flooded compressor (1) with oil lubrication and to which compressor a helium gas circuit is connected having a high- pressure line (16) extending to an object (15) to be cooled and a low- pressure line (11) extending from this object to be cooled back to the compressor. A cooling system (3) and an oil separating system (4) are included in the high-pressure line and the high-pressure line is connected to the low-pressure line via a connecting line (18) which includes pressure- relieving means (8). Means (13, 14) for retaining oil is installed in the low- pressure line (11) between the object to be cooled (15) and the point of connection (20) for said connecting line (18). <IMAGE>
Patent GB-2098734-A (GB)
Title: Apparatus for ultrasonic imaging
IPC: G10K11/35
Filed: 1979-03-27
Abstract: In ultrasonic imaging apparatus comprising a portable scanning module including a liquid-filled enclosure (51) having a window (52) through which a beam of ultrasonic energy from a transducer (80) scans a subject, the transducer is of an elliptical elongate configuration and the reflective scanner and scanning window are of elongate form in the direction of scan. The window is of rigid material and is inclined with respect to the beam. In one form, the scanning is effected by means of an oscillating reflector (70). In another form, the reflector is omitted, the ultrasonic energy from the transducer passing directly through the window (Figure 6, not shown) with scanning being effected by oscillation of the transducer. The focus may be changed in embodiments using a segmented transducer (80) in conjunction with variable delays (100) and phase control circuits (120). <IMAGE>
Patent GB-2109247-A (GB)
Title: Nursing bottle
Inventor: TEN CHUENG TZENG
IPC: A61J9/00
Filed: 1981-11-13
Abstract: A nursing bottle comprises a collapsible container 1 in which there is dismountably secured a disposable collapsible milk tube or container 2. The invention obviates the need to provide more than one sterilised container 1 for a baby while in transit. <IMAGE>
Patent GB-2110945-A (GB)
Title: Forming decorative articles, e.g. doll-like figures, jig-saw puzzle pieces
Inventor: WYMAN DENNIS GEORGE
IPC: A63F9/10
Filed: 1981-11-25
Abstract: A method of forming a decorative article such as a flat toy for a child, includes moulding two portions 9, 10 of the article in non-toxic plastics, one of the portions 9 being transparent, locating a printed sheet 11 between the portions and uniting the portions thereby trapping the sheet so that the printing is visible through the transparent portion. <IMAGE>
Patent GB-2088214-A (GB)
Title: Acaricide compositions active against hibernating eggs
IPC: A01N31/16
Filed: 1981-12-01
Abstract: A method and compositions for combatting mite infestations on useful plants, by treating the hibernating (or over-wintering) eggs with a compound of the general formula:   <IMAGE>  in which  R' represents an alkyl group having from 8 to 11 carbon atoms, R'' represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms, an allyl group or a   <IMAGE> group, in which R<2> represents an alkyl group having from 1 to 4 carbon atoms, a cycloalkyl having from 3 to 6 carbon atoms or a phenyl group.
Patent GB-2094921-A (GB)
Title: Mounting member
IPC: F16C11/06
Filed: 1982-01-13
Abstract: A mounting member 18 integrally connected to a first component 15 such as a gas spring rod and being adapted to be connected to a second component such as a body of a vehicle to mount the first component 15 on the second component. The mounting member 18 is formed of at least two elements 19, 20 of synthetic resin material which are welded together by supersonic welding process along respective mating surfaces of respective elements 19, 20. The mating surfaces of respective elements cooperate to define a recess 21 in which a portion 16, 17 of the first component 15 is received prior to the welding process. <IMAGE>
Patent GB-2114382-A (GB)
Title: Apparatus including electric current transfer
Inventor: DAVIES EVAN JOHN
IPC: H05B3/00
Filed: 1982-01-26
Abstract: Heavy electric current is transferred between two relatively movable conductive members, for example a moving wire and stations 11 or 12, by way of a bed of carbon spheres of 1 DIVIDED 4 mm diameter or of carbon fibres 1/8 mm x 3 mm. The bed is maintained under pressure, for example by a lid 15, and is in contact with both the conductive members. <IMAGE>
Patent GB-2099861-A (GB)
Title: Holder for retaining the knitting needles in a warp knitting machine
IPC: D04B27/06
Filed: 1982-01-28
Abstract: The needle holder comprises a base member 1 of castable or injection-mouldable material having a butt by means of which the holder is mounted in the needle bar 3 of the machine. Steel plates 4 are bonded into the base member 1 in spaced relationship so as to form webs 5 and grooves 6 for receiving the shafts of the knitting needles 7. The holder starts laterally with a whole web and terminates with a whole groove. The edge web 8 bounding the holder laterally is made integral with the member 1 and is therefore rigidly connected thereto. For lateral stabilisation, the web 8 has a projection 10 which extends to the opposite edge of the holder in the form of a strip 11 with similar projections in the grooves 6. Transverse grooves formed in the needle shafts cooperate with the projections 10 to secure the needles 7 longitudinally. <IMAGE>
Patent GB-2096443-A (GB)
Title: Compact horticultural facility
IPC: A01G9/02
Filed: 1982-03-18
Abstract: A framework comprises a pair of A-shape frames (1 and 2) with elongate members (6) extending therebetween and a plurality, as shown twelve, of containers (7) on each side with each container (7) hung an an upper one of a pair of elongate members (6) and supported by its bottom wall on a lower one of the pair of elongate members (6). <IMAGE>
Patent GB-2097220-A (GB)
Title: A method for the television scanning of films
IPC: H04N5/253
Filed: 1982-04-02
Abstract: In a method for the television scanning of films of the Cinemascope format wherein the film is recorded compressed in the horizontal direction of a factor of 2, the video signal is expanded by an appropriate pulsing of storage means and the beginning and end of the reading out operation may be displaced selectively in order to prevent margins without picture content on the viewing screen. In one embodiment, the complete Cinemascope film frame is introduced into a picture store and is read out once again at a reduced pulse frequency after displacement of the beginning of the read out.
Patent GB-2118600-A (GB)
Title: Sealable doors
Inventor: GUILD JAMES CARRIE
IPC: E05D15/06
Filed: 1982-04-15
Abstract: A laterally moveable door (12) (or door sections) is hung from a beam (14) (or beam sections) moveable relative to a fixed beam (19) on air bearing units (18) inserted into apertures (17) in the moveable beam (14). An auxiliary beam (20) or a roller bearing (43) Fig. 4 engaging a slotted beam 19x accept horizontal thrusts. The door has an air-inflatable seal (21). A common air supply connects with the air bearing units (18) and with the seal (21) through a valve such that air is supplied either to the air bearing units or to the seals. <IMAGE>
Patent GB-2119442-A (GB)
Title: Rotary-piston fluid-machines
Inventor: NORMAN DAVID ROBERT
IPC: F01C1/20
Filed: 1982-04-23
Abstract: An I.C. engine has co-operating rotors 14, 22 in intersecting parallel cylinders 11, 12, one rotor having a tooth, or teeth, 17 and the other having a corresponding recess(es) 25. The rotors may be interconnected by a "drive train", Fig. 1, and the fuel may be liquid hydrogen. Combustion air enters the cylinder 11 through a port 26 and the recess(es). The fuel may be injected through a nozzle 18, Fig. 1, adjacent a spark plug 19. Exhaust gases may be ejected through ports 20, 27. The engine may be adapted for use as a compressed-gas motor. <IMAGE>
Patent GB-2121095-A (GB)
Title: Tie fastener
Inventor: BAIRD GEORGE CHARLES
IPC: F16G11/04
Filed: 1982-06-04
Abstract: A fastener for a tie, strapping or the like, has a body (10) with a through bore (15) in which is a wedging member (20). The tie (19) is fixed at one end to the body, and at the other end passes around the wedging member so that, when the tie is tensioned, the wedging member is drawn in the bore into wedging engagement therewith to secure said other end portion of the tie. The member (20) has a hole (21) to receive a shear pin to hold the member (20) out of wedging engagement with the bore (15) until tension is applied to the tie (19). <IMAGE>
Patent GB-2136397-A (GB)
Title: Magnetic tape cassette containing two tapes
Inventor: RUBENSTEIN LEONARD
IPC: G11B23/04
Filed: 1982-07-10
Abstract: A magnetic tape cassette houses two tapes, a reel to reel tape 34 and an endless single loop, tape 90. Both tapes may be driven together or separately in a forward or reverse direction by means of a capstan pinchwheel drive and drive to the supply and take up spools 32, 9. Both tapes pass around tape guides 35, 13 and tape 90 also passes around further tape guides 81, 84. Tape guides 13, 35 may be made in two sections to reduce travel of tape 90 during rewind or fast forward movement of tape 34. Separation between the tapes is achieved by spacer plates 101, 201 fixed to the cassette casing, e.g. to ribs 103, 203. The cassette may be used in automatic telephone answering and recording machines. <IMAGE>
Patent GB-2124727-A (GB)
Title: Coupling element
Inventor: MITISCHKA HERBERT
IPC: F16B7/04
Filed: 1982-08-04
Abstract: A coupling element is proposed which includes two hingedly connected arms (1, 2) having respective, axially aligned through holes (6, 7) to receive a spring loaded adjusting means therein, the adjusting means comprising an adjusting screw (9) engaged with the through hole (7) in one arm (2) and operating, through two spring means (12, 16), to hold a hollow flanged bush (8) against a step in the bore of the other through hole (6) the bush (8) extending outwardly of the arm (1) in which it is located for displaceable engagement with a complementary bore in the wall of a beam to which the element is applied. 
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