baber/WOPTO huggingface dataset:
Patent GB-745775-A (GB)
Abstract: 745,775. Capacitors; removing metal electrolytically. STANDARD TELEPHONES & CABLES, Ltd. Jan. 26, 1954, No. 2322/54. Addition to 689,556. Classes 37 and 41. In the manufacture of electrical capacitors comprising a metal foil coated on both surfaces with a dielectric material, exposed portions of the foil, such as occur at the edges thereof and at pin-holes in the dielectric material, are removed by an electrolytic process, the coated foil being wound into a roll and immersed into a chemically neutral electrolyte together with a further electrode which is connected as a cathode while the foil is connected as an anode. The electrolyte is so chosen with respect to the electrode materials that it remains chemically neutral during electrolysis and there is no production of chemical reagents which would act directly on the metal foil or of gases during the electrolytic process. In Fig. 1, a coated copper foil 1 is wound into a roll and placed in a solution of copper sulphate between a pair of copper discs 3, 4 which are connected as the cathode. In Fig. 2, the coated foil 6 is wound together with an unsaturated copper foil 7 which is used as the cathode. In order to permit the complete penetration of the electrolyte between the turns of the roll a further layer of absorbent material, e.g. paper, may be wound into the roll. The capacitor is constructed from the treated coated foil by cutting the foil in two along its length, the two foils thus produced being wound together with one foil reversed to form a capacitor with the exposed edge of foil, to which connection is made, at one end of the roll and the exposed edge of the other foil at the other end of the roll. The Specification also mentions the use of stannous chloride as the electrolyte with a coated foil of tin, lead acetate with lead foil and zinc chloride with zinc. Specification 699,274 is referred to.
Patent GB-2002307-A (GB)
Title: Space spin up and ejection apparatus
IPC: B64G1/28
Filed: 1978-07-31
Abstract: Apparatus for launching a payload 34 (for example, a satellite) from a carrier spacecraft 30 (for example, a space shuttle vehicle) in space arranged to urge the payload away from the carrier spacecraft and also to spin the payload up to a desired spin rate. The apparatus is also arranged to re-accept a payload after launch. <IMAGE>
Patent GB-2026860-A (GB)
Title: Cosmetic sticks
IPC: A61K8/73
Filed: 1978-08-03
Abstract: Cosmetic powder is compressed into a rod or stick rigid enough to withstand breakage when rubbed on the skin at one end but friable enough to transfer a layer of powder to the skin. Friable adhesive e.g. watersoluble cellulose-based is normally present in otherwise conventional cosmetic formulation.
Patent GB-2005290-A (GB)
Title: Separators for secondary alkaline batteries and analytical methods for determining the suitability of such separators
IPC: H01M50/489
Filed: 1978-09-29
Abstract: Separators for alkaline batteries, particularly those having zinc electrodes, comprise a copolymer having a high molecular weight alkali- stable backbone, with intermittent pendant terminal polar groups, the separator being capable of serving as a complete barrier to the passage of zinc ions. The polymer backbone may be of polyethylene, polypropylene or polystyrene and the polar groups may be carboxyl, hydroxyl, amino, sulpho, cyano or conjugated, non-aromatic unsaturated groups. A suitable copolymer is ethylene-acrylic acid copolymer. Analytical methods for determining the suitability of separator materials comprise developing an elemental X- ray map of the separator material after it has been subjected to the environment of normally operating secondary alkaline cells for a minimum of 20 full charge and discharge cycles, in order to determine whether zinc ions have passed through the material under these conditions.
Patent GB-2005622-A (GB)
Title: A movable imprinting deck for a postage meter system
IPC: G07B17/00
Filed: 1978-10-06
Abstract: A noise-reduced imprinting deck is disclosed for use in a postage meter system. The imprinting deck 15 and a postage meter are mounted on a central frame member 19 that is shock and noise isolated. The connections between the movable deck 15 and the central frame 19 are leaf springs 22. The leaf springs allow for a highly flexible deck movement, while eliminating relative movement between the deck and the central frame support connections. The elimination of the relative movement between the deck support and the deck connections greatly decreases the noise output of the imprinting deck. <IMAGE>
Patent GB-2034165-A (GB)
Title: Farming equipment
IPC: A01K1/00
Filed: 1978-11-15
Abstract: An assembly for use in an animal pen comprises a rigid cover 1 suspended by wires 5 and a flexible curtain 4 formed by strips 6 of clear plastics material which hang freely from the cover 1, the curtain defining with the cover 1 and the pen floor an enclosed space which is heated by a radiant heat source, such as an electric lamp, supported within the space by a cable which passes through a hole 8 in the cover. <IMAGE>
Patent GB-2011476-A (GB)
Title: Purifying Nickel Sulphate Solution by Cementation with Activated Nickel
IPC: C22B15/00
Filed: 1978-11-30
Abstract: A process for the purification of sulphate solutions containing nickel and optionally cobalt by removal of copper present as an impurity comprising cementation at a pH of 3.5-5 with pieces of electrochemically active nickel containing 0.005-0.1% sulphur. Ferrous iron can be removed from the solutions by oxidising it with oxygen- containing gas at a pH of 3.5-5 in the presence of a predetermined amount of dissolved copper and co- precipitating it with some of the copper prior to the cementation.
Patent GB-2036911-A (GB)
Title: Connection Members
IPC: F16B12/24
Filed: 1978-12-08
Abstract: The boards of a plinth of a floor- standing kitchen cupboard, are joined edge-to-edge at an angle to each other with a connector in the form of a channel section (3) with an outwardly extending flange (4) on one side wall (7). The channel section fits around the edge of one board, and the edge of the other board faces the side wall (7) of the channel section (3) and is held in position by means of the flange (4) which extends alongside the edge region of the other board and is secured to this with the assistance of a locking device, such as a peg (9). <IMAGE>
Patent GB-2039344-A (GB)
Title: Flow regulating valve
IPC: G05D7/01
Filed: 1979-01-12
Abstract: A flow regulating valve incorporates a variable area pressure reducing restriction and a flow regulator responsive to a pressure difference existing across said restriction so as to maintain a constant rate of fluid flow despite variations of supply pressure. The variable restriction is defined by an orifice 22 in combination with a movable plug member 15 which is adjustable by means of a shaft 5 which also operates a stop valve. A sleeve 11 is movable by means of a diaphragm 9 and co- operates with an annular channel 24 to maintain a constant rate of flow in response to variations in the pressure difference on opposite sides of the orifice 22. <IMAGE>
Patent GB-2016128-A (GB)
Title: Freezer unit
IPC: F25B5/04
Filed: 1979-02-23
Abstract: Cooling apparatus has a freezer unit (4) associated with a storage chamber and one part (9) of the freezer unit is held at a lower temperature than the remaining part (10) of the unit so that frost adheres to the part of the unit having the lower temperature. In a refrigerator having a freezing compartment and a cooling compartment, the freezing compartment has a freezer unit (4) with evaporator portions (9, 10) attached to the body (8) of the unit. The evaporator portions (9, 10) and an evaporator in the cooling compartment are connected in a compression- condensation system controlled so that the two evaporator portions are maintained at different temperatures. <IMAGE>
Patent GB-2045808-A (GB)
Title: Method of forming a secondary emissive coating on a dynode
IPC: C23C14/58
Filed: 1979-04-02
Abstract: A method of forming an emissive coating on a dynode substrate 1. The method comprises the steps of vapour depositing a composite coating 10,11 consisting of magnesium and aluminium onto the dynode substrate 1. A 50 to 500  ANGSTROM  thick layer 12 of aluminium is vapour deposited over the composite coating 11,12 and the aluminium layer 12 is oxidised. The coated dynode is then activated by heating it in a partial pressure of from 5 x 10<-6> to 4 x 10<-4> Torr oxygen at a temperature between 270 and 400 DEG C. The resulting secondary emissive coating contains from 1.5 to 90% by weight of magnesium. The coated dynodes are used in channel electron multipliers which are suitable for use in electron display tubes such as image intensifiers or colour television display tubes. <IMAGE>
Patent GB-2050763-A (GB)
Title: Transmitter queuing system
IPC: H04B1/38
Filed: 1979-04-04
Abstract: In order to form a first-come first-served queue in an information transmission system employing a common transmission channel when several transmitters of the system try to gain access to the channel when it is already occupied, without employing a further transmission channel to a point at which an account is kept of the order in which the various transmitters request access, each transmitter which tries to gain access in these circumstances is caused to delay after the channel subsequently free before it actually accesses the channel, this delay being inversely proportional to the time the corresponding transmitter has waited. Thus the transmitter which has waited the longest gains the channel first and causes the other waiting transmitters to continue to wait.
Patent GB-2017594-A (GB)
Title: Model Testing of Vessels
IPC: B63B71/20
Filed: 1979-04-06
Abstract: In the model testing of ships' roll- damping tanks, the surface tension and viscosity of both the water in the model roll-damping tank and the water in which the ship model floats are modified to obtain with small models the effects characteristic of models several times larger. The surface tension is reduced by adding a detergent and the viscosity is reduced by adding a long chain polymer.
Patent GB-2036157-A (GB)
Title: Anti-fouling latched sling hook
IPC: B66C1/36
Filed: 1978-12-15
Abstract: Anti-fouling sling hook (10) with latch (32) that comprises a forged hook (12) of selected design to provide a wider curved surface in the throat (48) of the hook to provide a better bearing surface for a cable, and an improved design of hook (10) and latch (32) so that the latch is of greater strength and, in closed position, straddles a projecting stub (22) on the tip (20) of the hook, which resists any outward or sidewise movement of the latch. The latch is also designed to provide a smooth contour in conjunction with the outer surface of the hook and hook tip, so as to be anti-fouling.
Patent GB-2029659-A (GB)
Title: Apparatus and method for electrical processing of picture element information
IPC: G11B7/09
Filed: 1979-06-28
Abstract: In processing picture element information, analog signals from a number of groups of light detecting elements (11, 12) are compared with a common analog reference signal from a digital to analog converter (15) by a plurality of comparator circuits (17-1 to 17n) which supply write enable signals to a plurality of digital memories (16-1 to 16n) to store digital signals delivered from a control circuit (5), whereby illumination intensity information for each picture element is stored. The stored signals are then read out from the memories, and processed to derive a signal for example for detecting a focal point of cameras or the like optical devices. A slightly different arrangement is described with reference to Figure 3 (not shown). <IMAGE>
Patent GB-2038945-A (GB)
Title: Rotary-piston Engine
IPC: F01C11/00
Filed: 1979-08-16
Abstract: An internal-combustion engine has a drive shaft 20 secured to a piston 24 mounted within a casing 12. A drive flap 65 on the piston swings into and out of an expansion- exhaust chamber 53 as the piston rotates. The piston also has turbine slots 70 which successively interconnect combustion chambers 40 and the expansion-exhaust chamber. A pair of cam members 75 carried by the casing move the drive flap in timed relation to ignition of a combustible mixture within the combustion chamber. Sliding vanes, or "edge seals", 43 engage with the piston's peripheral surface. Intake and exhaust ports 36, 60 communicate with an intake-compression chamber 33 and the expansion-exhaust chamber, respectively. Pivotal vanes (80), Fig. 5, may replace the edge seals. <IMAGE>
Patent GB-2030439-A (GB)
Title: Milk substitutes
IPC: A23C11/02
Filed: 1979-08-21
Abstract: A milk substitute in the form of an unreconstituted powder, containing more than 10% casein, is given an extended storage life following reconstition by the presence of a pH-responsive preservative, such as propionate, and an edible acid, such as malic acid, which generates a pH in the milk substitute immediately after reconstitution in the range 6 to 5.2, and optionally a water-soluble phosphate. <IMAGE>
Patent GB-2030923-A (GB)
Title: Apparatus for bi-directionally stretching a plastics foil-web
IPC: B29C55/20
Filed: 1979-08-22
Abstract: Apparatus for bi-directionally stretching a plastics foil web (Fig. 1) has two sets of clips (10) respectively gripping a web (2) at its opposite side edges, for stretching the web and transporting it through the apparatus. Each set of clips forms a chain-like series which is extensible (a, a1, a2, a3) substantially in the direction of web transport. Each clip (10) is connected to its adjacent clips by extensible connecting means, preferably in the form of steel bands or cable (15) mounted on the clip and connected to an adjacent clip, the band or cable being wound on a drum on the clip which drum is rotatable by drive means (11, 17, 18). The length of the band is thus variable so as to cause clips to move apart or to move together. <IMAGE>
Patent GB-2059455-A (GB)
Title: Improvements in or relating to looms with stationary weft supply
IPC: D03D47/23
Filed: 1979-09-29
Abstract: A weft inserter 50 and receiver 10 which meet in the shed and transfer the weft from one to the other have their gripper operated electromagnetically. As the inserter 50 starts its insertion movement spring loaded pivoted jaws 56, 58, which are held open by a stationary cam acting on a follower 80, close to grip the weft and the jaw 56 is held in its closed position, against the action of its spring by a catch 70. The receiver 10 has a fixed jaw 18 and a pivoted spring loaded jaw 22 that is held in its open position, against the action of its spring, by a catch 34. At the transfer position a first electromagnet is operated to release the catch 34 of the receiver 10 so that its pivoted jaw is moved by its spring to grip the weft, still held by the inserter, against the fixed jaw 18. A second electromagnet is then operated to release the catch 70 of the inserter 50 so that the jaw 56 is moved by its spring to the open position to release the weft for withdrawal from the shed by the receiver 10. <IMAGE>
Patent GB-2033404-A (GB)
Title: Preparation of Electrically Photosensitive Composite Particles for use in Electrophoretic Imaging
IPC: G03G17/04
Filed: 1979-10-02
Abstract: A method of producing electrically photosensitive composite particles that are especially useful in photoelectrophoretic imaging is described. Resin particles containing carbon black are dispersed in a liquid vehicle together with particles of an electrically photosensitive material. The suspension is heated to within 5 DEG C of the glass transition temperature of the resin, and the particles are agitated to cause the electrically photosensitive particles to at least partially embed in the resin particles.
Patent GB-2038785-A (GB)
Title: Improvements in or relating to offset printing or duplicating machines
IPC: B65H29/04
Filed: 1980-01-08
Abstract: A safety device for enabling removal of sample sheets from offset printing or duplicating machines has a flap 3 pivotable on an axle 1 located in front of the front steps 6 of a sheet search receptacle and having a vertical position 10 and a horizontal position 11. In the horizontal position 10 access to the sheets in the direction of arrow A is not permitted and in the horizontal position 11 access to the stack of sheets 9 is permitted whilst blocking off manual access to transporting grippers 13. <IMAGE>
Patent GB-2042194-A (GB)
Title: Weighing and dispensing
IPC: G01G13/16
Filed: 1980-02-06
Abstract: Fried potato chips are fed from a receptacle 3 to a releasable weighing platform 21 in a dispensing chamber 6. When a predetermined weight of chips is reached, the weighing platform 21 hinges downwardly to dispense a weighed portion. The chips are agitated by an agitator 41 whilst in the receptacle 3, in order to guard against stuck together chips being fed to the weighing platform and resulting in the dispensed portion of chips being greater than the predetermined weight. <IMAGE>
Patent GB-2061258-A (GB)
Title: Glaucine phosphate salts
IPC: C07D221/18
Filed: 1980-02-18
Abstract: d-Glaucine phosphate, which has antitussive and analgesic properties, additionally has good stability and palatability.
Patent GB-2049688-A (GB)
Title: Cephalosporin Derivatives, Processes for the Preparation Thereof, and Antibacterial Compositions Containing Them
IPC: C07D501/32
Filed: 1980-04-09
Abstract: New cephalosporin derivatives useful as antibacterial drugs and represented by the general formula:   <IMAGE> wherein R<1>, R<2>, R<3> each represents hydroxy, acyloxy, and hydrogen provided that two or three of R<1>, R<2> and R<3> are not hydrogen; and R<4> represents hydrogen or hydroxy; and non-toxic salts thereof can be prepared by acylation of the corresponding phenylgycine or p- hydroxyphenylglycine cephalosporin using the appropriate optionally activated chromone carboxylic acid. They can be incorporated into pharmaceutical compositions.
Patent GB-2052311-A (GB)
Title: Garden sieve
IPC: B07B1/46
Filed: 1980-06-02
Abstract: A garden sieve for mounting on a wheelbarrow has a frame 10 and a foot or stand 18 adapted for detachable connection by means of selectively engageable projections and recesses, with the frame in any one of a series of positions whereby the extension and/or angular position of the foot relative to the frame is adjustable. In the preferred embodiment the foot has two arms the free ends of which engage opposite sides of the frame near one end thereof and the other end of the frame carries clips 16 intended in use, to fit over an edge of the wheelbarrow. <IMAGE>
Patent GB-2052657-A (GB)
Title: Hydraulic Brake Force Regulator
IPC: B60T11/34
Filed: 1980-06-05
Abstract: A brake force regulator disposed between a master cylinder (4) and a wheel cylinder (5) and having a beam (17) with load-dependent variation of the effective lengths of its lever arms, is provided with piston members (8, 15) which abut against opposed contact points of the beam (17), one (15) of which piston members actuates a regulator valve (12). The other piston member (8) is of two-part construction and has two concentric component pistons (24, 25), the outer annular (24) of which component pistons can be rendered inoperative by abutment against a spring ring (36) after covering an actuating stroke (X). In this manner, a brake pressure curve in accordance with a regressive characteristic can be obtained which closely approaches the ideal braking curve. The brake force regulator is used with hydraulic brakes of motor vehicles. <IMAGE>
Patent GB-2062105-A (GB)
Title: A Rotary Positive Displacement Fluid Machine
IPC: F01C3/02
Filed: 1980-06-16
Abstract: At least two interpenetrating toroidal chambers (11A, 11B) are provided with ports (161, 162, 163, 164) and respective rotary piston means (12A, 12B) that are drivingly connected to a shaft (13), the piston means of each chamber being so correlated in their respective movements that they provide working sections in the chambers to move the fluid or be moved thereby. <IMAGE>
Patent GB-2055549-A (GB)
Title: Safety shoe
IPC: A43B13/12
Filed: 1980-07-11
Abstract: A safety shoe comprises an integral upper (1), inner sole (2) and flange (3) extending all around the edge of the inner sole, and further comprises an outer sole (6) and steel sole (5) embedded between the soles and at least frictionally engaged by the flange (3), undercut at (4). The plate is held in position on the inner sole (2) by the flange (3) whilst the outer sole is sprayed or moulded on. The upper, and inner and outer soles may be made of plastics. Instead of the flange (3), studs moulded over the surface of the inner sole may engage a perforate steel plate, or projections adjacent the edge of the inner sole may co-operate with edge recesses in the steel sole. <IMAGE>
Patent GB-2081687-A (GB)
Title: Storage Bin Activator Device and Method of Restoring Bulk Material Free Flow
IPC: B06B1/00
Filed: 1980-08-05
Abstract: A storage bin activator device 10 comprises a compressed gas storage tank 22 which is connected to the storage bin 40 via an electrically operated valve 26 and a pipe and elbow assembly 28. The valve is operated by an electrical programmer which produces electrical signals in the millisecond range, so as to direct a precise pattern of multiple instantaneous energy bursts of impact, aeration and sonic stimulation directly into bulk material within the bin 40 to free the material for discharge.
Patent GB-2084215-A (GB)
Title: Yieldable stilt
IPC: E21D11/30
Filed: 1980-09-16
Abstract: A yieldable box stilt for a limb of a roadway arch in a mine comprises a channel section member (13) between the free edges of whose sidewalls (15) is welded a plate (16) or a plate (20) having a protrusion (18, or 19), the protrusion (18, or 19) forming with the opposite back wall (14) of the member (13) a portion of reduced width in which an I-section limb (10) of a roadway arch is an interference fit. Resistance to penetration of the stilt by the limb is due to friction between wall (14), protrusion (18, or 19) and the flanges (11) of the limb (10). The plate (16) or (20) is preferably secured within the sidewalls (15) by fillet welds (24). <IMAGE>
Patent GB-2090321-A (GB)
Title: Forming a Vehicle Door Hinge
IPC: B21D53/40
Filed: 1980-12-29
Abstract: The method comprises forming two metal plates, for example by stamping from sheet steel, the first (2) having a spaced pair of generally parallel tongues (4) which are rolled over to form aligned tubes, and the second (1) having a single tongue (3) which fits between those of the first plate and which is also rolled over to form a tube which can be aligned with the first two tubes. A hinge pin (5) is then passed through the tubes and secured in at least one of them. Other shaping operations can also be carried out on the plates, such as bending and reinforcing, prior to assembly of the hinge. <IMAGE>
Patent GB-2068861-A (GB)
Title: Low ground pressure vehicle
IPC: B62D49/00
Filed: 1981-01-20
Abstract: A low ground pressure vehicle for use in farming has a front frame section (1) and a rear frame section (2) pivotally interconnected to allow relative angular movement about a first vertical axis (12), and axle on each frame section, and a wheel assembly (7, 10) on each axle the ground engaging surface of which extends across the greater part of the width of the vehicle. Drive means is provided on one or both frame sections for transmitting drive to the axle on that section, and a double acting hydraulic piston and cylinder unit (21) act between the frame sections to steer the vehicle. <IMAGE>