baber/WOPTO huggingface dataset:
Patent GB-2088023-A (GB)
Title: Anti-syphon valves
IPC: F16K15/14
Filed: 1981-05-05
Abstract: An anti-syphon valve unit is provided as a separate unit adapted to be incorporated into a waste water piping system, rather than providing a water seal trap with integral anti- syphon device. The valve unit includes one or more valve members arranged to provide a seal against egress of water or gases under positive or nil pressure and to admit air into the system under negative pressure within the system. The or each valve member may comprise a resilient diaphragm 37 cooperating with a valve seat portion of the unit to seal off at least one vent hole 34 in the seat portion. A projecting ring 36 may be provided to form the actual valve seat. Alternatively, the valve member may be a frustoconical plug in a corresponding aperture in a body portion of the valve unit, the plug lifting to permit air to enter the piping system under negative pressure, the lifting movement being limited by a abutment in the valve unit. Alternatively again, the unit may have a plate-like valve member together with biassing means therefore to seal off one or more vent holes. <IMAGE>
Patent GB-2215157-A (GB)
Title: Radar apparatus
Inventor: CASHEN ERNEST ROSCOE
IPC: G01S13/10
Filed: 1981-05-08
Abstract: A radar apparatus transmits a pulse and receives a corresponding return within the duration of the transmitted pulse. The returned pulse and a proportion of the energy of the transmitted pulse are mixed in a mixer (6) to produce a demodulated pulse of duration equal to the overlap in time of the transmitted and received pulses. In order to render the apparatus insensitive to close targets a video gate (8) prevents the portion of the demodulated pulse corresponding to e.g. 0 to 1/4 full range passing to a processing circuit. The processing circuit forms the ratio of the amplitudes of two frequency components of the spectrum of the demodulated pulse as a measure of range or forms the mean amplitude of the demodulated pulse weighted according to a weighting function. <IMAGE>
Patent GB-2079587-A (GB)
Title: Drive shaft for windscreen wiper arm
IPC: B60S1/34
Filed: 1981-06-30
Abstract: A drive shaft 11 for a windscreen wiper arm has a tube 28 located in bore 26 for supplying washing fluid to the screen to be cleaned. The tube 28 is longer than the wiper shaft 11 and at least one of the tube ends projecting out of the shaft is provided with an annular flange 34 or 36 engaging one end surface 30 or 32 of the shaft. <IMAGE>
Patent GB-2102203-A (GB)
Title: Electrical switches
Inventor: JUERY GERARD
IPC: H01H13/12
Filed: 1981-07-16
Abstract: A switch comprises a movable contact disk (13) which is resiliently biased against a terminal (8) and against a ridge (11) of the switch body, and which is pivotable about an axis passing through the terminal (8) and ridge (11) into and out of engagement with fixed contacts (9, 10). A pushbutton (16) is provided with two guide rods (20, 21) which pass through two openings (25, 26) in the movable contact (13). Two springs (27, 28) are mounted about the guide rods (20, 21) so as to extend between the inner surface of the pushbutton (15) and the movable contact (13). The two springs (27, 28) are disposed on opposite sides of the pivot axis so that the contact (13) is pivoted when the pushbutton (15) is actuated. A finger (22) is provided on the pushbutton (15) for breaking contact welds. <IMAGE>
Patent GB-2093216-A (GB)
Title: Method for checking the quality of reproduction of graphic elements
IPC: G03C5/02
Filed: 1980-07-15
Abstract: This method is aimed at checking the quality of reproduction of graphic elements obtained by means of a cathode-ray tube on a photo-sensitive material. This method allows the checking in a simple and rational way of the printings obtained from a photosensitive material. The checking is carried out by introducing a network of supplementary points which react differently according to the illuminating and developing conditions.
Patent GB-2104825-A (GB)
Title: Blow moulding
Inventor: GAUNT THOMAS NORMAN
IPC: B29C49/50
Filed: 1982-03-19
Abstract: A plastics cup-like container is produced by blow moulding a product 20 which is then severed at 42 or 64 to provide one or two of the containers. The moulding may be shaped so that when the severing takes place the or each resulting cup- like container has an outwardly turned flange by which the container may be sealed by means of a metal or plastics lid. The severing can be effected by a shearing ring 44. The container walls are biaxially orientated which provides enhanced strength and gas barrier properties. A laminated parison can be used, the inner plastics layer having good gas barrier properties. <IMAGE>
Patent GB-2097860-A (GB)
Title: Actuator with accumulator
IPC: F15B1/02
Filed: 1982-04-23
Abstract: An actuator e.g. for a gas valve comprises a body (10) defining a cylinder (19) and a gas accumulator (20) communicating with one end of the cylinder (19). A piston (26) slides relative to said cylinder (19) and has one end communicating with said gas accumulator (20) and an opposite end communicating with a fluid supply passage (37) in said body (10). A pair of seal members (21) are mounted on an inner wall of said cylinder (19) and are engagable with an outer wall of said piston (26) so as to provide a sliding seal between said piston (26) and said cylinder (19). A leak detecting bore (23) is provided in the body (10) between the seal members (21). A rod (30) is movable with said piston (26) and extends externally of said cylinder (19) for engagement with a part (e.g. a gas valve member) to be operated by said actuator. The piston is recessed (28) at its accumulator end for extra volume. A fixed stem (54) may extend in the recess to provide piston extension movement, if the accumulator fails, by a supply (60). <IMAGE>
Patent GB-2105377-A (GB)
Title: Improved air weft insertion nozzle control system
Inventor: WUEGER KARL W
IPC: D03D47/30
Filed: 1981-01-07
Abstract: The actuation of a nozzle utilized for propelling the yarn in an air weft insertion weaving system is controlled be means of a single rotary servo valve (31) having an arrangement of ports (95, 103, 105, 107) adapted to be brought during valve rotation into registration alternately with an air pressure source and with the atmosphere for alternately pressurizing and venting a pilot chamber (170) for opening and closing the nozzle. Preferably, the rotary valve (31) includes a rotary spool (75) enclosed with a sleeve of air permeable material to provide an air bearing for the spool. The actuation of the nozzle is determined by the movement of a diaphragm valve (180) toward and away from the opening of a nozzle supply chamber (156) under the control of the pilot chamber pressure, and the diaphragm is deformed into two annularly separated generally U-shaped convolutions (212, 214) opening toward the interior of the air supply chamber of the nozzle so that the movement of the diaphragm during opening and closing follows a 'rolling' or progressively flexing action as the convoluting side walls telescope outwardly and inwardly relative to one another. Preferably, two substantially similar convoluted diaphragms (180, 210) are disposed in axially spaced oppositely directed relation, one exposed to the nozzle supply pressure and the other to the pilot chamberpressure. Advantageously, the interior space between such diaphragm is vented (224) to the atmosphere to maintain a pressure-free condition therein and clearances are provided to prevent entrapment of air resisting deflection of either diaphragm.
Patent GB-2126447-A (GB)
Title: Real-time Fourier transforming transducer and applications thereof
Inventor: PETERS JOS B
IPC: H03H9/24
Filed: 1982-09-03
Abstract: A transducer 2 comprises a plurality of cantilever beams 11 arranged to have different mechanical resonances and each supporting or having integrated therein a strain- sensitive element R1-R2, and means for monitoring the condition of said elements when the or some of the cantilever beams come into resonance or are deflected. The device may be used in audio spectrum analysis. <IMAGE>
Patent GB-2131924-A (GB)
Title: Explosive container kit
Inventor: BOHONOS NORMAN J
IPC: F42B3/02
Filed: 1982-11-04
Abstract: A container, useful for seismic explosives, is in the form of a kit of parts comprising a cylindrical tube 1, a short plastics tube 2 with a female thread 6, which can engage one end of the tube 1 with a closure disk 15 secured between them, a short plastics tube 3 with a male thread 10 which can engage the other end of the tube 1 and a capwell 13 adapted to engage with the tube 3, the tube 3 and capwell 13 forming a closed end to the container which can be screwed into the open end of the tube 2 of a similar container. For use, during assembly of the kit, a booster 20 is placed round the capwell 13 and a cartridge 21 containing explosive 26 is inserted into tube 1 to form a package for detonation. To detonate the explosive, a blasting cap is inserted in the capwell 13 and a like package is screwed onto the tube 3 to hold the blasting cap in place. A series of packages may be screwed end to end to form a column of explosive packages. <IMAGE>
Patent GB-2111400-A (GB)
Title: A strainer assembly for granular filter beds
Inventor: CHEETHAM JOHN HAROLD
IPC: B01D24/12
Filed: 1982-11-26
Abstract: A strainer assembly comprises a body (1) which is to be mounted in the floor (14) supporting a filter bed and which has open upper and lower ends. A hollow open ended stem (3) projects downwards from the body and has an external screw-thread (4) which engages with an internal screw- thread (2) in the body enabling the level of the stem to be axially adjusted so that the effect of filter construction errors can be eliminated. A flexible tab (11) on the stem engages with ribs (10) on the body to prevent unintentional relative rotation of the stem and body. A strainer (8) is fitted to the upper end of the body and a flow control orifice (5) is provided in the stem. The area of the orifice is smaller than the total open area of the strainer. <IMAGE>
Patent GB-2305976-A (GB)
Title: Jet propulsion powerplants
Inventor: YATES IVAN RAY
IPC: F02K3/06
Filed: 1982-11-29
Abstract: A jet propulsion powerplant includes a fan (11) arranged upstream of a core engine (12), and first and second by-pass ducts (20) and (23) respectively, the first by-pass duct (20) providing a flow path for by-pass flow to be mixed with the hot core efflux to be exhausted through primary jet outlet means (21), the second by-pass duct(23) providing a flow path for cold fan efflux to be exhausted through secondary jet outlet means (25). In normal operation, as shown, second by-pass duct (23) is closed by an annular valve member (30) and substantially all the by-pass flow is mixed with the hot core efflux and exhausted through primary outlet means (21). In reheat operation, second by-pass duct (23) is open, and flow through first by-pass duct (20) is at least substantially reduced, for example by suitable governing of fuel supply to reheat means (19) to provide sufficient back pressure in duct (20), so that substantially all the by-pass flow is exhausted through secondary jet outlet means (25).
Patent GB-2110926-A (GB)
Title: Bed rocking mechanism
Inventor: GABRIELSSON LARS
IPC: A61G7/10
Filed: 1982-04-07
Abstract: A bed rocking mechanism intended to serve as support for a bed and to impart to the same a rocking or tilting movement in lateral direction, e.g. for turning of patients in long-term care. The rocking mechanism has a frame (3, 6) comprising casters (12) or legs resting on the floor or the like and two vertical central pillars (5) positioned adjacent to the longitudinally opposite ends of the rocking mechanism. The central pillars constitute bearings (11) for a rocking part proper (1, 2, 14) with beams (2) extending laterally on both sides, the ends of said beams being interconnected by means of rails (1) for the casters or legs of the bed.
Patent GB-2127227-A (GB)
Title: Frame for electromechanical apparatus in the interior of a cabinet
Inventor: HERNANDEZ JUAN LAO
IPC: H02B1/36
Filed: 1983-01-07
Abstract: The present invention relates to a removable frame for an electromechanical apparatus in the inside of a cabinet, suitable for slot machines and the like. The frame comprises a platform (1) upon which rest the supports (2) of the electromechanical assembly. The platform (1) has two posterior alignment rods (3) with peripheral grooves which engage parallel guides (5) along which the rods (3) slide. The anterior part of the platform is provided with two additional rods (6) which are threaded and carry nuts (7). The posterior parts of the guides are provided with slots (8) to receive the rods (3). Two additional slots (9) accessible from the front receive the rods (6), the nuts (7) being screwed outwardly to clamp the platform (1) in the cabinet. <IMAGE>
Patent GB-2114814-A (GB)
Title: Semiconductor memory array
Inventor: CHENEY GLEN TRENTON
IPC: H01L27/108
Filed: 1983-02-03
Abstract: A self-aligned one transistor- capacitor memory cell (12) is provided which uses an n-channel MOS transistor having separate drain (40) and source (38) regions with a first level polysilicon conductor (52) coupled to the top plate of the capacitor and separate second level polysilicon conductors (46) coupled to the gate of the transistor. The drain of the transistor may be contacted by a bit line (48) made from the second level polysilicon layer. A reduction in a dimension of the memory cell is achieved compared to a similar memory cell which uses only one level of conductors. <IMAGE>
Patent GB-2118557-A (GB)
Title: Corrosion inhibiting coatings
Inventor: DRAKE CYRIL FRANCIS
IPC: C09D5/08
Filed: 1983-02-16
Abstract: A paint composition for inhibiting corrosion of a metal surface includes a powdered sacrificial metal for that surface and a powdered water soluble corrosion inhibiting glass. Typically the paint is a zinc rich paint and the glass is a calcium/zinc phosphate glass. The paint binder may be an epoxy ester.
Patent GB-2116502-A (GB)
Title: Electrical sliding contact line and current pick-up assembly, in particular for use in firedamp- endangered mine openings
Inventor: LACHNER HANS
IPC: E21F9/00
Filed: 1983-03-09
Abstract: A universally flexible tubular casing (1) of rubber-elastic material (which is filled, in use, with pressurised protective gas) accommodates sliding contact conductors (2) and has a longitudinally extending slot (3), for a current pick-up arm of a current pick- up assembly (6). The sealing gap (3) has a cross-section which reduces in an outward direction and accommodates a resilient sealing member (4) preferably of circular annular cross-section which is flexible in all directions and which is insensitive to thrust forces. The current pick-up assembly (6) includes guide elements which lift the sealing member (4) out of the sealing gap (3) in front of the current pick-up assembly (6), guide the sealing member (4) closely on all sides over the length of the current pick-up assembly (6), and lay the sealing member (4) back into the sealing gap (3) behind the current pick-up assembly (6). <IMAGE>
Patent GB-2120210-A (GB)
Title: Fluid flow divider
Inventor: BAYLY PETER K
IPC: G01F15/00
Filed: 1983-05-11
Abstract: A spirit dispenser having a metering chamber and a transfer passage through which that chamber is connectable to a bottle or other storage container so that liquid is fed under gravity into the chamber as permitted by valve means as a plate-like member is located in the transfer passage to divide the passage into two passageways and a deflector 23 is provided at at least the upper or lower end of that member. The deflector extends angularly away from the respective end of the member towards the same side of that member, which is the side along which air escapes from the chamber. The air passageway is formed between spaced longitudinal ribs of the divider and has a cross-sectional size smaller than that of the liquid passageway. Guide ribs on the divider coact with the transfer passage to correctly locate the divider relative to that passage. The outlet and/or the inlet of the air passageway is located at a higher level than is the corresponding adjacent opening of the other passageway. <IMAGE>
Patent GB-2139690-A (GB)
Title: Security device
Inventor: BERRY JOSEPH BRIAN
IPC: E05C1/04
Filed: 1983-05-14
Abstract: A security device 10 for insertion into a mortise 12 in the edge 14 of a door 16 comprises a locking member or bolt 22 which is telescopically displaceable in relation to an outer sleeve 20. The bolt 22 has a ball catch insert 42 which is a press fit in a corresponding hole 43 within the bolt. The ball catch has a spring- controlled ball 44 which projects through a hole in the insert. The ball 44 is adapted in use to engage one of a plurality of holes 46 disposed in the outer sleeve 20. The ball catch serves to restrain, at least initially, axial movement of the bolt at least at each of its fully retracted and partially protruding states. The ball may be replaced by a magnetic catch and the bolt may be driven by a cylinder lock instead of by handle 28. <IMAGE>
Patent GB-2123410-A (GB)
Title: New derivatives of 1,2,3,4-tetrahydronaphthalene, process for their preparation and associated pharmaceutical compositions
Inventor: CHIESI PAOLO
IPC: C07D317/58
Filed: 1983-06-08
Abstract: 1,2,3,4-tetrahydronaphthalenes are described having the formula:   <IMAGE> where R represents hydrogen, C1-C4 alkyl, cycloalkyl containing from 4 to 7 carbon atoms or arylalkyl of the type   <IMAGE> where R1 and R2, which may or may not be the same, represent hydrogen or C1-C4 alkyl;  n = 1 or 2; Ph represents a phenyl radical possibly having one or more atoms of halogen or hydroxy or methoxy groups or a methylenedioxy group; Z and Z1, which may or may not be the same, represent hydrogen, C1-C4 alkyl, cycloalkyl containing from 3 to 7 atoms of carbon or an -AR3 radical in which A represents a -CO- or -SO2- group and R3 a linear or branched chain alkyl having from 1 to 15 atoms of carbon or a phenyl possibly substituted by a C1-C4 alkyl; and their addition salts with pharmaceutically acceptable inorganic or organic acids. These compounds have a sympathomimetic activity.
Patent GB-2144845-A (GB)
Title: Gas cooking appliances
Inventor: GOSTELOW BENJAMIN FRANK
IPC: F24C15/12
Filed: 1983-06-22
Abstract: A gas cooking appliance has top burners protected when not in use by a pivoted, counterbalanced lid or cover (4). The top burners are fed with gas via a gas rail (10) having independent, side-by-side gas supply passageways (12, 13) of which one (12) supplies gas to the top burners via taps attached to a base plate (14) of the rail. The other gas supply passageway (13) supplies gas to a grill burner and an oven burner via a tap and a thermostatic control (18) respectively. Supply of gas to gas passageway (12) is via a flow control valve (28) in a housing also attached to the base plate (14). The valve is operatively linked to the lid or cover (4) and is closed when the lid is closed and opened when the lid is opened but its operation does not affect use of the grill and oven burners. <IMAGE>
Patent GB-2136168-A (GB)
Title: Stabilizing Circuit for Controlled Inverter-Motor System
Inventor: OVERZET JOHN KENNETH
IPC: H02P27/06
Filed: 1984-01-17
Abstract: Stabilized operation of an inverter (25) and a-c motor (41) is obtained in the presence of sudden undesired load changes by controlling the inverter so that both the amplitude and frequency of the inverter output voltage will be functions of, and will vary directly with, the inverter output voltage, as shown in Fig. 2, rather than in response to the DC bus voltage (Fig. 1) as disclosed in the parent specification. A sudden decrease, for example, in the mechanical load (43) on the motor, increases the frequency of the inverter output voltage, thereby increasing the motor speed so that the load change across the d-c bus (26, 27) is reduced. As a result, the inverter output voltage remains relatively constant. When there is a normal variation in load demand, a set point voltage is adjusted to change the amplitude and frequency of the inverter output voltage to the levels needed to drive the motor at the new required speed. <IMAGE>
Patent GB-2139002-A (GB)
Title: Actuators
Inventor: PARSONS ROGER JAMES
IPC: G05G1/02
Filed: 1984-04-27
Abstract: A push-button actuator 3 for operating a device such as an electrical switch 1, has associated with it an inhibitor 14 capable of being set into one rotational position which enables the push-button to be depressed to an extent which actuates the device, or to another position in which it prevents the depression of the push-button to said extent. Such an arrangement when applied to a push-button switch enables the switch, for example the mains switch of a washing machine, to be locked in either the "on" or the "off" position. The actuator may also be used to lock a drawer of a soap or detergent dispenser of the washing machine in the closed position. <IMAGE>
Patent GB-2141085-A (GB)
Title: Marine jet propulsion units
Inventor: JOYNER PHILIP GEORGE
IPC: B63H11/113
Filed: 1984-05-25
Abstract: A marine jet propulsion unit comprising a water intake casing 1, an impeller casing 2 connected to the intake casing, an impeller 3 within the impeller casing and a water outlet casing 4 connected to the impeller casing. A rotatable member 5 is associated with the water outlet casing for controlling the direction of discharge of water from the unit. A normally-closed valve means 6 is operable to introduce gas into the water intake casing. <IMAGE>
Patent GB-2160405-A (GB)
Title: Reflective device for animal collar
Inventor: SAUNDERSON GARRY JOHN
IPC: A01K27/00
Filed: 1984-06-21
Abstract: A device for enabling, for example a dog or cat, to be seen in conditions of poor visibility comprises a strip (2) of reflective material which can be wrapped around and secured to the animal's collar by means of VELCRO (Trade Mark) (7, 8) disposed adjacent opposite longitudinal edges (3, 4) of the strip (2) on opposite sides thereof. <IMAGE>
Patent GB-2155314-A (GB)
Title: Wet-dry vacuum cleaner
Inventor: LEVINE MORRIS M
IPC: A47L5/24
Filed: 1984-07-05
Abstract: A wet-dry, hand-held vacuum cleaner comprises a housing 22 which encloses a suction fan/motor unit 28,30 and a canister 24 having a nozzle 44 and a storage chamber 46 for dirt and/or water removably attached to the front end of the housing. A partition 70 comprising hood 68 is provided between canister and housing to deflect liquid entering the canister away from the inlet to the suction fan/motor unit. A flow valve 64 may also be provided at the end of the nozzle where it enters the storage chamber. The motor may be battery driven. A battery charger 40 may be located within handle 26. <IMAGE>
Patent GB-2144367-A (GB)
Title: Extrusion of polypropylene fibres
Inventor: CASTELEIN JEAN
IPC: D01F6/06
Filed: 1984-07-18
Abstract: A process for the manufacture of polypropylene fibres having improved stretching properties comprises introducing from 0.01 to 0.5% by weight, based on polypropylene, of tris(3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate into the polypropylene and carrying out the extrusion of the polypropylene at a temperature from 220 DEG C to 280 DEG C
Patent GB-2146721-A (GB)
Title: Hose connection
Inventor: FRIEDERICH HANS-WERNER
IPC: F16L33/28
Filed: 1984-09-11
Abstract: The invention relates to a hose 1 with a terminally, firmly incorporated connecting piece 2 provided with annular beads 3, 4 and with intersecting rubber reinforcing inserts (8, Fig. 2) between the inner and outer envelopes. The reinforcing insert comprises a continuous thread passing in steep helical form alternately round the hose, the thread turns being in each case juxtaposed and over a short distance passing behind an annular bead. In alternative embodiments the thread can be formed of synthetic fibres such as polyamide, polyester. or alternatively of steel. <IMAGE>