baber/WOPTO huggingface dataset:
Patent GB-1293578-A (GB)
Title: Anti-skid device for vehicles
IPC: B60C27/04
Filed: 1969-12-08
Abstract: 1293578 Anti-skid device NON-SKID Inc 8 Dec 1969 59799/69 Heading B7C A vehicle wheel assembly including an antiskid device comprises a plurality of anti-skid elements mounted for movement from an operative condition (as shown in Fig. 6) in which they are spaced regularly around and in contact with a tyre mounted on the wheel and are constrained to rotate with the wheel, to an inoperative condition (as shown in Fig. 2) in which they are clustered towards the top of the wheel and spaced from the tyre and are not constrained to rotate with the wheel, a transmission associated with the wheel and the anti-skid elements so that rotational movement of the wheel may be applied to the elements to move them between the operative and inoperative conditions, and control means for engaging and disengaging the transmission. The anti-skid elements 110 are each attached at one end 120 to a segment 76 mounted on a split ring 75, the free ends of the elements being joined by an elastic member 128. The transmission comprises a dished member 130 and a flange 131 welded to this member and having lugs 143, the member 130 being attached to and rotatable with the wheel, and plates 150 and 151 on the axially inner and axially outer sides respectively of the split ring 75, the plates 150, 151 being axially movable by springs 190, 192 on guide pins 193, 198 slidable in cups 62 fixed to a bracket 45 rigidly connected to the wheel axle housing 31, the plates 150 and 151 thus being non-rotatable. In the inoperative condition of the device the ring 73 is securely clamped between the plates 150, 151, holding the segments 76 and thus the anti-skid elements 110 at the top of the wheel, and also preventing rotational movement of the segments. To bring the device to the operative condition the driver of the vehicle actuates a switch energizing a reversible linear actuator 220 which pushes the wires of push-pull cables 205 allowing the springs 190, 192 to disengage the plates 150, 151 from the split ring 75 and pushing slots on the ring into engagement with the lugs 143 on the flange 131, thus causing the ring to rotate with the wheel and spread the anti-skid elements regularly about the wheel, and extending member 128 which thus moves the elements 110 into engagement with the tyre tread.
Patent GB-1283615-A (GB)
Title: Apparatus for use in photographically copying book pages
Inventor: ALDERTON BRIAN
IPC: G03B27/52
Filed: 1969-12-24
Abstract: 1283615 Photographic apparatus SCOLAR PRESS Ltd 29 May 1970 [24 Dec 1969] 62967/69 Heading G2A In apparatus for obtaining a light image of a page 18 of a partly opened book 20, two reflecting surfaces are employed. As shown, a prism 12 is inserted into the book, and an image of the page 18 is reflected by one face 16 of the prism on to a mirror 14, from whence it is reflected into photocopying apparatus 28. The page 18 is illuminated by a source 17, an optical step wedge 24 being provided to give substantially even illumination of the page 18. A photo-meter 26 is provided to automatically alter the exposure time if the light intensity from the source 17 alters.
Patent GB-702436-A (GB)
Abstract: 702,436. Making condensers ; removing metal by electric discharge. DUBILIER, W. March 18, 1952 [March 22, 1951], No. 6975/52. Classes 83 (2) and 83 (4). [Also in Group XXXVI] The invention relates to condensers formed by winding a single dielectric strip with a metallized face which is divided by a sinuous demetallized zone as shown, e.g. in Figs. 1, 2, 3, and 5 ; according to the invention, the demetallized zone is produced by superimposing a stencil upon successive sections of the fully metallized strip, the stencil and strip moving at an equal speed, and applying an electric discharge to the metal coating through the cut-out areas of the stencil to remove the metal. As shown in Fig. 8, the metallized strip 24 is drawn from reel 25 and at roller 27, 28 is superimposed upon an endless belt 35 apertured as shown in Fig. 9, so that the electric discharge between rollers 38. 30 burns metal off the strip before being rewound on reel 33 ; the junctions 39a, 39b are burnt off by a pair of electrodes, not shown, energized by relays actuated when the discharge between rollers 38, 30 is interrupted. If both electrodes are actuated by each gap, the demetallized pattern of Fig. 10 is produced, the main electrode areas being joined to the edges by thin strips which burn through if a fault occurs and thus seal off the faulty electrode. The length of the band 35 corresponds to one condenser. Where a large condenser is required the endless band 35 may be replaced by a band wound from one reel and taken up on another wheel, Fig. 11 (not shown). In Fig. 12, the coated strip is drawn from roller 56 over demetallizing wheel 51 where the stencil 45 of Fig. 13 is superimposed on it to burn away the transverse areas 46 ; the stencil then separates from the strip and at wheel 52, the longitudinal slits 47, 48 allow brush 80 to complete the circuit of two relays, to actuate arc discharge contacts, only one 73 of which is shown, to burn away longitudinal areas on the strip 55 which is wound on reel 66. The condensers formed from the strips of Figs. 4 and 5 have metallic inserts 20, 21 or floating electrodes between the main electrodes, while that formed from Fig. 3 has two thicknesses of dielectric between each pair of electrodes. The dielectric strip may be of varnished paper. Specification 647,573, [Group XXXVI], is referred to.
Patent GB-2023394-A (GB)
Title: Improvements in beehives
IPC: A01K47/06
Filed: 1978-06-19
Abstract: A device for controlling the size of an entrance aperture 11 to a beehive comprises two elongate plates 18, 19 which are pivotally connected at their inner ends and so mounted on the hive that the inner ends may be raised or lowered to vary infinitely the effective size of the aperture. The inner end of one of the plates is also indented at 22 and the plates arranged for relative sliding movement such that when the plates are mutually retracted the aperture is completely closed and when extended a small orifice is formed which permits the passage of a bee but excludes larger animals. <IMAGE>
Patent GB-2004747-A (GB)
Title: Microbicides
IPC: A01N43/80
Filed: 1978-08-24
Abstract: A microbicidal composition comprising a solution containing from 5 to 50% by weight of an alkali metal salt of crude 1,2-benzisothiazolin-3-one in a hydroxylic organic solvent selected from at least one of dipropylene glycol, tripropylene glycol, polypropylene glycols, polyethylene glycols, lower alkyl carbitols, methanol, ethanol and mixtures of at least one of these solvents and water. The compositions are suitable for indirect food contact applications and in-can preservation of water-based paints in which they are non-yellowing.
Patent GB-2009754-A (GB)
Title: Chemophoretic Coating Compositions
IPC: C09D5/44
Filed: 1978-11-06
Abstract: The compositions, which are based on an aqueous solution, emulsion or dispersion of a film- forming agent stable in aqueous- acidic media and which optionally contain conventional additives, are characterized by containing 0.1 to 5% by weight, calculated on the film- forming agent, of an acid phosphate of the formula (I),   <IMAGE>  wherein R1 stands for a group of the formula  CH2-OR4 or CH2-OOCR4 (wherein R4 is an optionally substituted aliphatic, araliphatic or aromatic group), or R1 has the same meaning as R4,  R2 stands for hydrogen or an aliphatic group, and  R3 stands for hydrogen or a group of the formula   <IMAGE> (wherein R2 and R4 are as defined above). The compositions form thick deposits quickly on metal surface without coagulation, flocculation or gelling of the film-forming agent (due to hitherto undesired build-up of metal ions around the metal surface).
Patent GB-2035863-A (GB)
Title: Grinding method and apparatus
IPC: B24B31/00
Filed: 1978-11-30
Abstract: The apparatus comprises a tank 1 containing grinding material and shafts 8 which are fixed to or rotatably formed on a main shaft plate 2 provided rotatably above the tank and to which workpieces are fitted. The workpieces are held by being fitted to or suspended from the shafts by any means, and either or both of the grinding tank and main shaft plate is or are moved up and down so that the workpieces may be ground by the grinding material. <IMAGE>
Patent GB-2014007-A (GB)
Title: Amplifier circuit with partial amplifiers for discrete signal ranges
IPC: H03F3/21
Filed: 1979-02-07
Abstract: An electrical amplifier comprises several partial amplifiers A1-A3, which are so connected and voltage fed that each of them amplifies a voltage interval of an input voltage. Each partial amplifier is power fed by two voltage supplies U1, U2, which may have the same polarity and are coupled to different active components in the amplification unit of each partial amplifier. In particular one voltage may be coupled to a first transistor to provide the main output, whereas the other voltage may be coupled to another transistor to permit the absorption of current from a reactive load. Each amplifier is energised only when the input voltage lies in a range defined by comparators K1, K2 so that a gate G1 closes switches S1, S2. <IMAGE>
Patent GB-2032549-A (GB)
Title: Vacuum brake booster
IPC: B60T13/56
Filed: 1979-02-16
Abstract: A negative pressure booster is disclosed, which comprises a booster shell (1), a booster piston (2) within said booster shell (1) to divide the interior thereof into a first operating chamber (A) internally communicated with a negative pressure source and a second operating chamber (B), a valve cylinder (7) protruded at the rear of said booster piston (2) and having a first annular valve seat (91) disposed at the front portion thereof, a valve piston (10) slidably received in said valve cylinder (7) having a second annular valve seat (92) encircled by said first valve seat (91) and connected to an input rod (11), and a cylindrical resilient valve body (20) mounted within said valve cylinder (7) having a valve portion (20c) biased to be seated on said first and second valve seats (91, 92) and inside of which is open to the atmosphere, whereby when said valve piston (10) is retracted, said first and second operating chambers (A, B) are brought into communication through a gap formed between said first valve seat (91) and said valve portion (20c) whereas when said valve piston (10) is moved forward, said second operating chamber (B) and said inside of said valve body (20) are brought into communication through a gap formed between said second valve seat (92) and said valve portion (20c), and during the retraction of said valve piston (10), the retracting force thereof is supported on said resilient valve body (20) so that as said retracting force increases, said gap between said first valve seat (91) and said valve portion (20c) increases. An adjustable stop (13/1b) is provided for the retracted input rod. <IMAGE>
Patent GB-2046024-A (GB)
Title: Circuit assembly
IPC: H05K1/03
Filed: 1979-03-30
Abstract: A circuit assembly has a thin film component, supported on a major surface 11 of a substantially planar substrate 10, the substrate 10 having adjacent one edge a flange 20 extending normally to the component- bearing surface, the circuit assembly also having a plurality of leads 14, to extend externally of the circuit assembly, the leads traversing the flange, and being in sealing engagement with the flange, there being lead ends 14' adjacent to the component-bearing substrate surface, wires 16 are bonded between terminals 13 of the thin film component and the lead ends, and the wires, the thin film component, and the lead ends bonded to the wires, are encapsulated in a suitable plastics or silicone potting material 25. <IMAGE>
Patent GB-2020887-A (GB)
Title: Cover for a Container of an Electric Storage Battery
IPC: H01M50/627
Filed: 1979-05-09
Abstract: A cover (1) of a battery container has one or more conventional apertures (2) closable by plugs for topping-up the individual cells with electrolyte and also has a corresponding number of hollow shafts (3) closed by a wall section (4). The wall section (4) is constructed to be readily broken at (5) to enable, for example, a measuring instrument to be inserted through the shaft (3) to obtain information about the electrolyte. <IMAGE>
Patent GB-2025001-A (GB)
Title: Multiple-Circuit Protective Valves
IPC: B60T11/32
Filed: 1979-07-06
Abstract: A multiple-circuit protective valve assembly comprises a plurality of identical overflow valves, each provided with a valve closure member 25 which is pressed by means of a valve spring 24 against a valve seat 29. Restrictions 38 which are formed between a wall of a cylindrical bore 33 and a tulip-shaped insert 34, are arranged upstream of the closure member. The insert which is separate from the valve closure member and is guided in the bore 33, follows the closure member 25 during opening of the valve under the force of inlet fluid pressure. If required, non-return valves 27 are also arranged upstream of the restrictions. <IMAGE>
Patent GB-2026022-A (GB)
Title: >Dehydration of hydrocarbons
IPC: C10G33/04
Filed: 1979-07-12
Abstract: The tendency toward ice or solid hydrate formation during cooling of a light hydrocarbon or hydrocarbon mixture, such as LPG or NGL, for storage or transport at sub-zero temperatures is eliminated by mixing it (4) with aqueous methanol solution in a mixer 5, cooling the mixture in cooler 8 and thereafter separating the hydrocarbon (12) and aqueous phase (11) in a separator 10, the solution being chosen to be substantially insoluble in the hydrocarbon phase and freeze below the temperature to which the mixture is cooled, and at least part of the aqueous phase being recycled by pump 17 to the mixer 5 for re-use, with methanol being added (15) as required to restore its concentration in the recycling liquor towards that of the initial aqueous solution, and some of the recycling liquor being removed (14) as required to restore the quantity of circulating liquor towards its initial level. <IMAGE>
Patent GB-2027597-A (GB)
Title: Labyrinth ball puzzle
IPC: A63F7/04
Filed: 1979-07-30
Abstract: A ball 21 dropped into a hole 6 is directed to a hole 7 by tilting a casing 1 and rotating perforated cylinders 11, 12, 13. Wire guideways 17, 18 limit the path of the ball in the upper half of the puzzle. <IMAGE>
Patent GB-2035813-A (GB)
Title: Heat pump type water distilling apparatus
IPC: B01D1/28
Filed: 1979-08-09
Abstract: A heat pump type water distilling apparatus comprises a heat pump circuit including a compressor (1) for compressing organic fluid, a condenser (2) for heating water in the evaporator (3), a pressure- reducing valve (4) for reducing the pressure of organic fluid, and an evaporator (5) for condensing the water vapour received in the condenser (6) from evaporator (3) through pipe 8. <IMAGE>
Patent GB-2032686-A (GB)
Title: MOS device with U-shaped groove
IPC: H01L29/06
Filed: 1979-09-14
Abstract: The present invention relates to a metal-oxide-semiconductor (MOS) high current device. MOS devices have been formed with V-shaped grooves in the surface of silicon, but the depth of each groove is clearly related to its width thus limiting the number which can be made in a given silicon wafer. By means of an anisotropic etchant applied to the (110) plane of a silicon crystal substantially U-shaped grooves having (111) planes as the side walls extending perpendicularly to the (110) plane are formed be formed. The depth of each groove is independent of the width. The grooves extend through an epitaxial layer 76 of a first conductivity type, an intermediate layer 78 and into a substrate source 74 of a second conductivity type. Each groove is coated with an insulative oxide layer 80 and is then filled with conductive gate material 82. Between adjacent grooves lie drain regions 86 which are covered with an insulative oxide layer 88. The conductive material 82 extends over the insulative oxide layer 88. The MOS- device of the present invention requires relatively small chip surface area and operate at a faster speed than the prior art V-shaped MOS devices. <IMAGE>
Patent GB-2035557-A (GB)
Title: Tensioned wire rule
IPC: G01B7/34
Filed: 1979-10-15
Abstract: A high precision tensioned wire rule for obtaining a given sampling function, comprises a mounting frame (1) in which a wire system (3) consisting of a plurality of thin parallel wires, is tensioned between a holding and tensioning system, excitation means (24) operable to oscillate the wire system and means (14, 15) for sampling the wires of the system in their longitudinal extension to detect their natural oscillating frequency, means (4, 5) for torsioning and/or profiling said wire system and adjustment means (29) arranged for angular setting of the operation direction of the sampling system relative to the wire system and vice versa, and an evaluation system (27, 28) connected to the sampling system. <IMAGE>
Patent GB-2060869-A (GB)
Title: Secure optical data systems
IPC: H04B10/85
Filed: 1979-10-16
Abstract: In an optical fibre data transmission system, detection of an unauthorised tap is achieved by applying to a fibre conveying the data, a standing optical signal whose amplitude P is considerably greater than the amplitude PS of the data. This depresses the sensitivity of the system receiver to an extent at which the receiver noise has as its dominant component the shot noise in the signal. Thus the reduction in received power due to a tap is readily detectable. <IMAGE>
Patent GB-2034271-A (GB)
Title: An Apparatus for Stacking Products
IPC: B65G57/32
Filed: 1979-10-29
Abstract: An apparatus for stacking substantially box-shaped articles (16), comprising two conveyors being at an angle to each other adjacent the point of intersection or transition of which there is disposed a blade wheel, the blades (5) of which being adapted to transfer articles from the one conveyor onto the other, said blades being mounted on the blade wheel in such a way that their direction relatively to the blade wheel are variable. <IMAGE>
Patent GB-2043237-A (GB)
Title: Gas burner convection oven
IPC: F24C1/00
Filed: 1980-01-16
Abstract: Hot vapour is circulated through the oven enclosure 12 by an external pair of counter-rotating blowers 64 positioned in the rear of the oven. The blowers 64 draw vapour from the enclosure 12, entraining combustion products from a multi-section ribbon burner 92 and blow the combined vapour into the enclosure 12 via a screen 16. The blowers 64 generate a slight negative pressure in the combustion plenum 118 by blowing a small portion of their output out of a vent 68, thereby controlling the amounts of primary and secondary air supplied to the burner. A vane switch 148 in the vent senses air flow, in the absence of which the burner cannot be turned on. <IMAGE>
Patent GB-2042747-A (GB)
Title: Battery Testing Device for Photographic Cameras
IPC: G03B7/26
Filed: 1980-01-31
Abstract: A camera has a circuit which calculates an exposure value at 4, and indicates it at 5; a key being manually operable to cause storage of the calculated value and to load the battery 1 as it would be loaded during exposure. If the display S goes out, then the battery needs replacing. The testing device enables a voltage measurement to take place at the respectively actual rated load by making use of the electronic and mechanical components which are necessary anyway for the operation of the camera. Switch 7 in parallel with key 8 is closed by the mirror mechanism on shutter release. <IMAGE>
Patent GB-2043169-A (GB)
Title: Combustion mixture regulating apparatus for IC engines
IPC: F02M26/62
Filed: 1980-02-07
Abstract: The composition of mixture supplied to an internal combustion engine is controlled by an exhaust gas recirculation valve (9) (9), a device (18) for metering the injected fuel flow rate and a device (42) for measuring the induction air flow rate. From the air flow rate, a value is derived for the required fuel flow rate and, when a deviation arises between the actual fuel flow rate and the desired fuel flow rate, a control signal in the form of a control pressure is produced, corresponding to which the exhaust gas recirculation flow rate is modified. The control pressure is compared in a second comparator apparatus (56) with a set value to control an exhaust gas recirculation valve (11) and is compared in a third comparator apparatus (61) with a set value, by which a correction element acting upon a flow adjustment element (63) of the fuel metering device (18) can be actuated. The actuation is carried out by an auxiliary energy source, the effect of which is controlled by the comparator apparatuses. <IMAGE>
Patent GB-2056299-A (GB)
Title: Device for collecting contaminants in open waters
IPC: E02B15/04
Filed: 1980-07-21
Abstract: A device for collecting floating oil from the sea comprises a skimming unit, mounted in front of a ship 19 by hinge rods 3, and having two forwardly diverging substantially vertical walls 12 which guide oil through channel 42 to outlet pipe 2. The unit is supported by two forward floats, spaced laterally apart, and a rear float forming the bottom of channel 42. Each float comprises an upper closed float body 23, 61 and a lower hollow body 24, 62 which is variably floodable. <IMAGE>
Patent GB-2059549-A (GB)
Title: Fluid Dispensing Valves
IPC: B67D3/04
Filed: 1980-07-30
Abstract: A fluid dispensing valve comprising a valve casing 2, either (a) receivable within an outlet socket 1 of a container for fluid, or (b) attached directly to said container, said valve casing defining a conduit 6, one end of which is in communication with the interior of said container and the other end of which is in communication with an aperture 7 constituting a valve seat; a deformable, resilient diaphragm 8 accommodated within said conduit and having a centrally- disposed valve element thereon which is in sealing engagement with said valve seat when the valve is in the closed position, said diaphragm being provided with at least one opening therein; and means e.g. command spigot 4, operable for displacing said valve element from said valve seat, against the biasing force of said resilient diaphragm, to thereby allow fluid to flow from the interior of said container into said conduit, through said at least one opening and out through said valve seat for discharge therefrom. A lever or a push button may be used to displace the valve member from the seat. <IMAGE>
Patent GB-2062831-A (GB)
Title: Waste heat recovery
IPC: F24D11/02
Filed: 1980-10-27
Abstract: A refrigerating or air conditioning system in which at least some of the heat which has been absorbed by the refrigerant is recovered in the form of hot water for use, for example, for toilet purposes or for space heating. Apparatus by means of which the heat is recovered is relatively simple and inexpensive by virtue of the fact that it includes a water storage vessel (20) communicating with a condenser heat exchanger (14) purely by convection and by virtue of the fact that hot water can be dumped from the water storage vessel by the opening of a gas pressure operated valve (36) responsive to the working pressure of the refrigerant at the output side of the compressor (12) of the refrigerating or air conditioning system. <IMAGE>
Patent GB-2066169-A (GB)
Title: Tipping vehicles
IPC: B60P1/26
Filed: 1980-12-01
Abstract: A tipping vehicle has a load- carrying body with an upstanding surround (11) for load-containing purposes, the rear (10) of which surround (11) is hinged (at 13) about its upper end to enable discharge of a load when the body is tipped. The rear (10) is locked when the body is in a rest position, the locking means comprising in combination a bolt (14) and a keeper bar (20). The bolt (14) is pivotally mounted on the chassis (16) and is in registry with a hole (19) in the floor (18) of the body at the rear end thereof. As the body is tipped, the bolt (14) withdraws from the hole (19) allowing the rear (10) to open. <IMAGE>