baber/WOPTO huggingface dataset:
Patent GB-2038622-A (GB)
Title: Improvements in chairs
IPC: A47C7/40
Filed: 1979-01-04
Abstract: A chair back 1 has at each side of the rear surface a socket 2. The upstanding end part of a supporting pillar 3 is received in the socket and is secured to a resiliently flexible part of the socket wall so that it can move in the socket to take up a back configuration appropriate to the attitude of the person in the chair. The flexible part is a leaf 8 attached to the socket wall at its base only. <IMAGE>
Patent GB-2026151-A (GB)
Title: Life support apparatus in vaults and strongrooms
IPC: E05G1/00
Filed: 1979-01-26
Abstract: A vault or strongroom includes equipment (3) for providing life-support within the sealed vault-enclosure (1). The carbon-dioxide content of the atmosphere within the enclosure (1) is monitored (7) and a pump (8) is operated if the monitored value exceeds a predetermined value, typically 1% or 2%. Operation of the pump (8) pumps air of the atmosphere through material (4) that absorbs carbon dioxide and this, together with operation of a fan (9) to circulate air in the enclosure (1), is continued until the monitored content has been reduced, typically to 0.5%. Oxygen (or air) is released from cylinders (5) for replacing the absorbed carbon dioxide and maintaining an oxygen level of about 18% or 19% in the enclosure (1). Release of oxygen is regulated by a valve device (10) to maintain a variable e.g. pressure of the atmosphere within the enclosure (1) substantially constant or within predetermined limits. The pump (8) is operated concurrently with release of the oxygen. <IMAGE>
Patent GB-2041532-A (GB)
Title: Metal detector
IPC: G01V3/10
Filed: 1979-01-31
Abstract: <IMAGE> <H0> Metal detector </H0>     This invention relates to a pulsed eddy current metal detector. A transmitter coil 1 transmits a pulsed signal and a detector coil 3 detects a magnetic field produced by decaying eddy currents induced in conductive material in the region of the coil 3 by the pulsed signal. The presence of metal is indicated by sampling signals detected by the detector coil at least twice and at different times during the decay of the induced eddy currents e.g. by sample and hold circuits 4,5, the outputs of which are fed via amplifiers 8,9 of suitable gain to subtractor 10. The invention is particularly useful for detecting metal object which would otherwise be masked by unwanted background signals caused by unwanted targets, for example wet ground, which signals are eliminated by circuit 10 and suitable setting of the gains of amplifiers 8,9. The apparatus may be used to sort coins. <IMAGE>
Patent GB-2042030-A (GB)
Title: Method of and apparatus for controlling tide waters
IPC: E02B7/20
Filed: 1979-02-14
Abstract: The salinity intrusion of ocean tidewater into a communicating fresh water river is prevented by laterally restricting the out-flow cross-section of the river with a series of flotation weirs 26 and control weirs 24 so that the surface level of the out-flow cross-section is higher than the surface level of the adjacent tidal salt water. The weirs are located so as to not obstruct the ship channel 12 of the river. <IMAGE>
Patent GB-2018232-A (GB)
Title: Preparation of zeolites
IPC: C07C67/00
Filed: 1979-04-04
Abstract: Crystalline aluminosilicate zeolites having an SiO2Al2O3 molar ratio of at least 12 and a constraint index between 1 and 12 are prepared from an aqueous mixture containing a compound of an alkali or alkaline- earth metal (M), an Al-compound, a Si-compound, an alcohol (ROH) and ammonia. The compounds are present in the following molar ratios:  SiO2:Al2O3>/=12; (M)2/nO:SiO2= 0.01-1.0;  H2O : (M)2/nO = 10-500; ROH : Al2O3 = 5-500;  ROH:NH3>2. (n is valency of M). The mixture is maintained at elevated temperature.
Patent GB-2020535-A (GB)
Title: Improved cigarette wrappers
IPC: A24D1/10
Filed: 1979-04-05
Abstract: A cigarette which is stuck with plural pieces of metal foil on either inner or outer side of the wrapping paper thereof between the out end and the draw end, in a predetermined arrangement pattern, either individually independent or linked by some pieces into a group. The cigarette is sometimes provided with a metal foil of cylindrical form, with a predetermined length, stuck on the wrapping paper between the draw end and the plural pieces of metal foil. The draw end may be made into a filter. The pieces of the metal foil effectively reduce fire risk, decrease the production of carcinogenic substance, and do not spoil the smoker's pleasure. <IMAGE>
Patent GB-2028114-A (GB)
Title: Improvement relating to wiper drive assemblies
IPC: B60S1/24
Filed: 1979-06-20
Abstract: This invention relates to wiper drive assemblies particularly for use as windscreen wiper drive assemblies. The invention provides an assembly comprising two parallel crank members (12, 13) rigidly spaced apart by a first crank pin (14) on which a connecting rod (15) is pivoted. A second crank pin (18) is provided on the opposite side of the crank member (13) to the first crank pin (14) and a second connecting rod (19) is pivoted thereon. The connecting rods (14, 18) are in turn pivotally connected to windscreen wiper arms. The crank members are rotated by a motor drive shaft (10) and thus the rotary movement of the motor is converted into reciprocating movement of the connecting rods which is in turn converted into a wiping motion of the wiper arms (20). <IMAGE>
Patent GB-2030116-A (GB)
Title: Constant spacing document feeder
IPC: B65H3/04
Filed: 1979-08-30
Abstract: A constant spacing document feeder employs a motor control circuit which drives a feed wheel at an average speed which is dependent upon the length of a document. Since the spacing between successive documents is a function of the length of each following document, by varying the speed of the feed wheel in accordance with the length of each document, the spacing between each document can be maintained substantially constant. <IMAGE>
Patent GB-2034218-A (GB)
Title: Continuous Casting Chill Mould and Associated Cooling System
IPC: B22D11/045
Filed: 1979-11-01
Abstract: The mould comprises a block (8) of graphite containing a moulding cavity. A number of external cooling pipes (11) are individually urged resiliently against external surfaces of the block and are able to move individually with respect to the block e.g. by virtue of the block (8) having flat outer surfaces (24', 24'') on which the pipes (11) rest. The pipes (11) can be of rectangular cross-section, each being attached to the rest of the system through resilient compensators (9). Pressure of coolant flowing thereby urges the pipes (11) against the block (8). <IMAGE>
Patent GB-2036815-A (GB)
Title: Attachment of a Knitted Strip to Fabric
IPC: D05B7/00
Filed: 1979-12-13
Abstract: In a method of attaching a knitted strip 16 to a piece of fabric, one or both of the longitudinal edges of the strip being formed by a non-welt edge, a first longitudinal edge is pressed onto points of the linking machine at 30, the edge of the piece of fabric is then pressed onto the point of the linking machine and then the second longitudinal edge is pressed onto the points at 50 so that the strip envelops the edge of the piece of fabric, the strip and fabric are then presented to a sewing means 14 for attachment of the strip to the fabric, wherein when the first or second edge is formed by a non-welt edge that edge is folded prior to being pressed onto the points so that the points pass through the main portion of the strip and its folded marginal portion. <IMAGE>
Patent GB-2039793-A (GB)
Title: Spray Lubrication System
IPC: B05B13/02
Filed: 1980-01-16
Abstract: A system for the automatic spray lubrication of moving machinery has a control valve (2) biassed into a normal position in which it connects a charge cylinder (1) to a compressed air inlet (5). When a part (8) to be lubricated trips a pilot valve (21) the control valve is moved rapidly into an operative position in which the compressed air inlet is cut off from the charge cylinder (1) while the latter is connected to a Venturi spray nozzle (11) to spray a charge of lubricant from a reservoir (13) onto the machinery to be lubricated. If the machinery stops in a position in which the control valve (2) is held open the delivery of oil through the Venturi nozzle ceases immediately the charge of compressed air in the cylinder (1) has been exhausted. The valve (2) may be actuated mechanically by a lever (6), or (Fig. 2) it may be a fluid- actuated valve operated when the machinery actuates a pilot valve (21). <IMAGE>
Patent GB-2040516-A (GB)
Title: Time Switches
IPC: H01H43/12
Filed: 1980-01-22
Abstract: A time switch (100) (Figure 1) comprises terminals (110) spaced around a slip ring (108) connected to a voltage source (V). A motor (104) drives a brush (102) to sequentially connect the terminals (110) to the slip ring (108) to energise the terminals in sequence. Each terminal (110) - as shown for one of them designated 112 - is connected via a respective transistor (116) and manually operable switch (124) to a pair of common output conductors or bus- bars (130, 132), whereby for each successive period of time corresponding to each successive terminal (110) being energised the conductors (130, 132) are energised in accordance with the setting of a respective one of the switches. Thus, a desired time-varying pattern of energisation of the conductors (130, 132) to accomplish a control function, e.g. the output of a central heating system to provide different heat outputs at different times of the day, can be set up at will simply by adjusting the various switches (124). <IMAGE>
Patent GB-2041501-A (GB)
Title: Pilot-assisted fluid flow control valve
IPC: F16K31/40
Filed: 1980-02-06
Abstract: The main valve closure is in the form of a spool-like piston comprising a carrier portion (30) having secured therein, by means of an interference fit, a unitary plastics insert (32) one end face of which has a sealing surface (48) for sealing engagement with the main valve seat (18) and the other end face of which has a sealing surface for engagement with a pilot valve closure. The use of the unitary insert (32) substantially overcomes leakage problems encountered in prior valves of a similar kind and such an insert, in the event of it becoming worn as a result of repeated operation of the valve, can be readily and cheaply replaced with a new insert. <IMAGE>
Patent GB-2070809-A (GB)
Title: Timing device
IPC: G07C1/22
Filed: 1980-02-09
Abstract: An electronic timing device, particularly for use by a competitor in a race produces a spoken time indication to warn the competitor of the time remaining until the start of the race and the time expired during a race. The device of Figure 1 is in the form of a wrist watch. It comprises a clock signal generator 6. The clock signals are counted at counters 13, 14 and 15 and the outputs of these counters are fed to a voice synthesiser 7. This a produces a speech signal which is passed to an earphone 16 along a flexible lead 15. <IMAGE>
Patent GB-2047699-A (GB)
Title: Process for the production of 2- acetyloxymethyl-5-acetyloxypyr-4-one
IPC: A01N43/14
Filed: 1980-04-10
Abstract: A process for the production of 2-acetyloxymethyl-5-acetyloxypyr-4- one comprises stationary or submergely cultivating penicillium sp. at 27 DEG C on the Czapek-Dox liquid media, extracting the supernatant and purifying it with methanol, adjusting the pH of said purified supernatant to 1.8 in order to crystallise out 2-hydroxymethyl-5- hydroxypyr-4-one and acetylating said compound with acetic anhydride in anhydrous pyridine. The substance is useful in insecticidal formulations.
Patent GB-2078689-A (GB)
Title: Tamperproof Closures
IPC: B65D41/34
Filed: 1980-04-23
Abstract: A tamperproof closure comprises the combination of a container and a cap (11) provided with a circumferential line of weakness (18). The upper portion of the cap is screw- threadedly attached to the container, a circumferential portion (20) of the lower portion (16) of the cap being deformed into an annular recess (21) on the container. <IMAGE>
Patent GB-2054034-A (GB)
Title: Liquid-cooled internal combustion engine
IPC: F01P7/16
Filed: 1980-06-24
Abstract: The cylinder head jacket (5) has inflow and return connections (6, 7) for pumped coolant circulation, and the cylinder block jacket (4) is in communication with the head jacket (5) solely through orifices (8) at the interface between block and head, exchanging its coolant with that in the pumped circulation channel by thermo-syphoning. A thermostatic valve (12) responsive to the coolant can bypass a radiator (10) at low temperatures to achieve rapid warm- up. <IMAGE>
Patent GB-2054948-A (GB)
Title: Non-aqueous electrolyte
IPC: H01M10/0566
Filed: 1980-06-27
Abstract: There is disclosed a non-aqueous electrolyte comprising at least one solvent selected from the group consisting of sulfolane and its liquid alkyl substituted derivatives thereof, a cosolvent of the formula CH3O (CH2CH2O)nCH3 where n has the value defined in claim 1, and a solute selected from the group consisting of lithium tetrafluoroborate, lithium perchlorate and mixtures thereof. The electrolyte is useful in lithium cells and there is also disclosed a rechargeable cell comprising a lithium anode, a cathode and a non-aqueous electrolyte of the invention.
Patent GB-2054585-A (GB)
Title: Process for producing methylhydrazines
IPC: C07C241/00
Filed: 1980-07-09
Abstract: Methylhydrazines are produced in high yield by reaction of trimethylanilinium halide with hydrazine or monomethylhydrazine at a reaction temperature of 80 DEG  to 130 DEG  C. for at least 3 hours. Methylhydrazines are useful compounds in the fields of chemical industry, such as manufacturing pharmaceuticals or agricultural chemicals, and space weapon industry.
Patent GB-2061420-A (GB)
Title: Hydraulic circuit apparatus
IPC: F16H61/00
Filed: 1980-09-03
Abstract: In a hydraulic circuit in which fluid may pass from a tank 100 through valves 9, 10 and pipes 12, 13 to a direct coupling clutch torque converter 7 and a fluid cooler 16, a by-pass 16' is provided so that fluid may still reach the cooler even when converter 7 stops the flow of fluid. The fluid may be supplied as excess fluid from a regulator 102 which provides controlled line pressures to valves 103-108. The flow of fluid through by-pass 16' is restricted by an orifice 17 therein to a desired rate, e.g. one litre per minute. The circuit forms part of the automatic transmission system of a vehicle comprising throttle valve 104, governor valve 105, manual speed selector 103, regulator valve 102, 1-2 shift valve 106, 2-3 shift valve 107 and 3-4 shift valve 108, controlling clutches 109 to 115. Valves 9 and 10 control the direct coupling clutch 8 of the torque converter. <IMAGE>
Patent GB-2064615-A (GB)
Title: Prefabricated metal steps
IPC: E04F11/025
Filed: 1980-10-08
Abstract: A prefabricated metal step assembly includes stringer members (11, 111) to which step treads (29, 129) are to be secured, a number of tread brackets (22, 122) slidingly engageable with the stringer members (11, 111) and the treads (29, 129) extending between and fastened to opposed tread brackets (22, 122). The tread brackets (22, 122) each include a hollow part (23, 123) which engages over and closely fits the stringer members (11, 111), and a tread supporting part (24, 124) integral with the hollow part. The tread brackets (22, 122) are secured to the stringer members (11, 111) by bolts, screws or the like, and the tread supporting part (24, 124) is angled relative to the angle at which the stringers are mounted such that the treads (29, 129) fastened to the supporting parts lie substantially horizontally. <IMAGE>
Patent GB-2073894-A (GB)
Title: Automatic IM distortion test selector
IPC: G01R23/20
Filed: 1981-03-03
Abstract: An intermodulation test analyzer which automatically determines whether an SMPTE or CCIF intermodulation test is being conducted and switches its output accordingly is disclosed. This is accomplished by sensing the low frequency energy content of the test signal. This energy content is compared to a reference level representative of the low frequency energy content of a typical SMPTE test signal. Therefore, if the low frequency energy content of the input signal is greater than the reference level, the signal is treated as the SMPTE test signal. However, if the low frequency energy content is less than the reference level, the signal is processed as a CCIF test signal. <IMAGE>
Patent GB-2130340-A (GB)
Title: Gas turbine rotor assembly
Inventor: SNELL LEONARD STANLEY
IPC: F01D5/02
Filed: 1981-03-28
Abstract: A gas turbine engine has a front fan (11) connected to its turbine shaft (19) through a coupling (22) which allows the fan to move bodily radially relative to the shaft (19) when the fan becomes unbalanced when a blade comes off, due for example to striking an ingested bird, and experiences a radial shift of its centre-of-mass. The coupling allows the fan to invert relative to the shaft whilst still transmitting torque through the coupling.The fan is constrained to rotate about the same axis as the shaft during normal balanced running by a shear pin (23) that does not transmit torque, and a resilient restoring means (30) is provided for urging the unbalanced rotor to be moved to bring its new centre-of-mass back on to the axis of rotation of the shaft (19). <IMAGE>
Patent GB-2102117-A (GB)
Title: Vehicle light controller
Inventor: HARRISINGH PATEL MAURICE
IPC: B60Q1/14
Filed: 1981-05-21
Abstract: A photo-electric vehicle light controller has an additional photo- electric device comprising a phototransistor PTR1 mounted at the rear end of an opaque tube 17 face forwards through the windscreen 13. The resultant narrow angle of vision  alpha  will receive illumination, as the vehicle approaches an over-bridge, from the far side of the bridge and will thus not energise the road lights. On approaching a tunnel, however, the phototransistor will receive little or no light and will cause the road lights to be energized. This energisation is maintained by a delay means for a period after the phototransistor again received light as the vehicle approaches the end of the tunnel.   <IMAGE>
Patent GB-2082845-A (GB)
Title: Microwave components
IPC: H01P1/02
Filed: 1981-07-27
Abstract: In a dielectric waveguide transmission path including a corner or bend a planar conductive member (5) is secured at the outside of the corner or bend to reflect microwave energy around the bend from one section (1) of the transmission path to the other (2). The conductive member (5) may be electrically connected to the conductive substrate (3) of the transmission path. <IMAGE>
Patent GB-2105808-A (GB)
Title: Storage apparatus and safety device for material in plate or sheet form
Inventor: TURNER RAYMOND
IPC: F16P1/00
Filed: 1981-08-27
Abstract: Plates or sheets 11 of material can be received in wells 10 in such a manner that tilting movement of the plates or sheets across the width of each well 10 is permitted. The wells 10 are arranged in pairs, there being disposed between the wells in each pairs walkway 17 to allow operator access to the plates or sheets 11 and at least one safety device 22 which prevents the plates or sheets in both of the wells from tilting towards the walkway 17 at the same time. Each safety device 22 comprises a slidable member 23 whose ends 24, 25 are positioned for engagement with the plates or sheets 11 in the wells 10, respectively. When the plates or sheets 11 in one well are tilted towards the walkway 17, the member 23 is contracted thereby and is moved transversely of the wells 10 to hold the plates or sheets in the other well away from the walkway. The apparatus may be of modular construction. <IMAGE>
Patent GB-2084943-A (GB)
Title: Folding canvas caravans (trailer tents)
IPC: B60P3/34
Filed: 1981-09-07
Abstract: The caravan comprises a trailer 2, two collapsible frame assemblies, a roof assembly 13, 15, and a canvas covering. Each frame assembly comprises a flat element 5A, 5B articulated to an upper longitudinal edge of the trailer and movable between a position over the trailer and a horizontal position beside the trailer. Each frame assembly further comprises a foldable hoop 7 pivoted to the edge of the trailer to extend vertically therefrom when erected and to lie under the flat element when folded. The roof assembly comprises articulated elements 13 which interconnect the upper portions of the hoops 7 and which lie between the frame assemblies when the caravan is folded. <IMAGE>
Patent GB-2107487-A (GB)
Title: Electric motor control systems
Inventor: GREEN TIMOTHY MICHAEL MALCOLM
IPC: H02P3/08
Filed: 1981-10-13
Abstract: In an electric motor control system motor M is controlled from an impedance bridge circuit. An adjustable control impedance TH1 is set by manual or automatic control and an adjustable feedback impedance FB1 is adjusted mechanically by rotation of the motor M. The control system has means R1, TR.1 for monitoring a stall-indicating characteristic of the motor and means Ic.2d, TR.2 to cut off the power supply to the motor when the characteristic indicates that the motor is close to or has reached a stall condition. It also has comparator means Ic.2a for comparing the potential inputs such that when the power supply to the motor has been cut-off it can only be restored in response to the output of the comparator if there is imbalance between the potential inputs in the opposite sense to that existing when the power supply was cut-off. <IMAGE>
Patent GB-2114057-A (GB)
Title: Printing process
Inventor: WAKELIN MARTIN EDWARD
IPC: B41M7/00
Filed: 1982-01-14
Abstract: A web of heat-sensitive adhesive-coated paper is printed with conventional ink and subsequently coated with a water-based overvarnish so as to prevent setting off. The apparatus may include a plurality of letter-press or lithographic print stations 10, 12, 14 followed by a flexographic print station 16 which serves to apply water-based overvarnish immediately downstream of the last of the print stations. Printed material is then subjected to a high velocity, air-impingement dryer 18 and is found finally rewound on a spool 22. The overvarnish, when dry, is permeable to oxygen to allow oxidation drying of the underlying ink. Heating to a temperature which might affect the heat-sensitive adhesive is avoided. <IMAGE>
Patent GB-2092565-A (GB)
Title: Surface covering compositions
IPC: C04B28/02
Filed: 1982-02-10
Abstract: A flame-resistant flexible surface-covering composition comprises cement, rubber and aluminium hydroxide, preferably also containing stone particles. The composition is particularly useful for use as a levelling covering on uneven surfaces such as steel ship decks.
Patent GB-2092972-A (GB)
Title: Stern drive
IPC: B63H/
Filed: 1982-02-18
Abstract: A drive mechanism for power boats comprises an inboard motor 16, a gearbox 18 outside the transom and a gimbaled propeller shaft housing 24 allowing universal pivotal motion between the gear box and the housing. A gear pair 30 and 32 mounted within the propeller shaft housing provides a lower propeller shaft relative to the hull of the boat 10 without requiring a greater propeller shaft angle relative to the hull and without requiring a lowered inboard motor position. <IMAGE>
Patent GB-2098001-A (GB)
Title: A package for a semiconductor chip
IPC: H01L23/48
Filed: 1982-05-04
Abstract: A package for semiconductor chip (14) includes as an integral part thereof a frame-shaped multilayer ceramic capacitor (20). The chip is mounted within the capacitor structure. Conductive portions of the capacitors serve as the terminals and plates of the capacitor and as planar power and ground members (34) and (35) for interconnecting an external power supply to the chip. By means of these planar members, power is distributed to the chip in a low-impedance, substantially transient-free manner without utilizing any of the multiple signal leads emanating from the package. Moreover, the signal leads are separated from the ground plane by a low-dielectric-constant material (42). As a result, the signal leads are minimally loaded and are characterized by a relatively constant impedance selected to optimize signal transfer to and from the chip.