baber/WOPTO huggingface dataset:
Patent GB-1237309-A (GB)
Title: Stabilising aqueous solutions of potassium persulphate
IPC: H01M4/58
Filed: 1969-10-09
Abstract: 1,237,309. Potassium persulphate stabilization. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Oct., 1969 [12 Oct., 1968], No. 49689/69. Heading C1A. [Also in Division H1]  An aqueous solution of potassium persulphate contains, as a stabilizer, a potassium salt of an organic sulphonic acid having a solubility in water at 25‹ C. of more than 1 gm. equivalent per litre. The organic sulphonic acid may be methanemono-, methanedi- or methanetrisulphonic acid, ethanedi- or ethanetri-sulphonic acid, benzene - m - disulphonic acid, benzene- 1,3,5 - trisulphonic acid, toluenedi- or toluenetri-sulphonic acid. The solution may be buffered with zinc oxide, aluminium oxide, or aluminium hydroxide to maintain the pH of the solution between 5.5 and 8.5.
Patent GB-1025517-A (GB)
Title: Airfoil bladed centrifugal fans
IPC: F04D29/28
Filed: 1964-12-08
Abstract: 1,025,517. Centrifugal fans. WESTING- HOUSE ELECTRIC CORPORATION. Dec. 8, 1964 [Dec. 31, 1963], No. 49902/64. Heading F1C. A rotor 10 in or for a centrifugal fan comprises a pair of axially-spaced side plates 11, 12 and a number of aerofoil blades 13 secured between the plates by a number of studs 26a, 27, 28 and nuts 21, 30, 31, 32 at each end of each blade, the studs extending through the respective side plate and through a contiguous end portion 17 only of the blade. The end portion 17 is secured, preferably by welding, to the blade. The nuts 21 are substantially rectangular and are each accommodated with small clearance within a cover 18 secured, preferably by welding, to the portion 17, the inner end of each nut 21 passing through a slot in the blade wall. Each nut 21 is locked to its respective stud by a pin (not shown) passing through a bore in the nut and binding against the threads on the stud.
Patent GB-1135943-A (GB)
Title: Container closuring
Inventor: ADCOCK E
IPC: B65B51/22
Filed: 1964-12-09
Abstract: 1,135,943. Packaging; stoppering. UNITED GLASS Ltd. 8 Dec., 1965 [9 Dec., 1964; 12 Feb., 1965], Nos. 50087/64 and 6292/65. Headings B8C and B8T. In a process for applying a metal foil sealing membrane to a container mouth, the membrane is placed under sealing pressure on to the container mouth and is heated by an induced high frequency current to a temperature sufficient to soften a thermoplastic material coated on the membrane without softening the container mouth, whereby the membrane is removably adhered to the container without distortion of the container. A glass jar 1 is sealed by applying a membrane of aluminium foil 2 coated on its underside with a thermoplastic adhesive 3, a pulpboard wad 4, and a snap-on non-metallic closure cap 5. Pressure is supplied by a vertically reciprocable tool 6, comprising a chuck 7 of insulating material, a resilient annulus 8, and water-cooled high frequency heating coils 9. When the tool has attained its prescribed capping pressure the current is switched on, heating the aluminium foil and causing the thermoplastic coating to become soft and cause adhesion. Screw caps may also be used, the screw cap supplying the sealing pressure. The membrane itself may be in the shape of a closure cap.
Patent GB-1033860-A (GB)
Title: Improvements in or relating to devices including a rolling diaphragm seal between two co-axially arranged relatively reciprocable elements
IPC: F15B15/10
Filed: 1964-12-10
Abstract: 1,033,860. Piston packing. PHILIPS GLOEILAMPENFABRIEKEN N.V. Dec. 10, 1964 [Dec. 13, 1963], No. 50304/64. Heading F2T. [Also in Division F1] Two coaxial pistons 2 and 3, Fig. 2 (not shown) reciprocate in a cylinder 1 and a seal comprising a rolling diaphragm 11 is arranged in an annular gap whose walls are formed by wall parts 12 and 13 of the cylinder 1 and piston 2 respectively which converge towards the space adjacent the convex side of the diaphragm. In other embodiments of the diaphragm its concavity may be downwards or the seal may be constituted by two rolling diaphragms the concave sides of which face one another. The wall parts may also converge along curved instead of straight lines.
Patent GB-1280958-A (GB)
Title: Improvements in or relating to separators for continuously separating a sludge containing mixture of two liquids
Inventor: MURKES JAKOB
IPC: B01D17/00
Filed: 1970-10-22
Abstract: 1280958 Separating oil, water and sludge ALFA LAVAL AB 22 Oct 1970 [5 Nov 1969] 50313/70 Heading BID A vessel for separating dispersed oil from water and sludge is divided by wall 6 into upper and lower compartments 2, 3 connected by an array of channels 1 to 5 mm. wide and formed by parallel plates or concentric tubes 4, 5, made of stainless steel or polyethylene which is preferentially wetted by the oil. If the oil is lighter than water, lower compartment 2 is the upstream chamber and has an inlet 7, valvecontrolled sludge outlet 11 and oil outlet 8 controlled by a valve which automatically holds the oil-water interface between electrodes 9, 10. The outlet ends of channels 14 are enclosed by copper or brass grid or net 12, which holds and coalesces the oil before releasing it to outlet 16, controlled by electrode 17 and a valve. A grid or net 19 prevents oil droplets reaching water outlet 15. Both nets are of 1 to 5 mm. mesh. A heater 18 reduces oil viscosity to facilitate discharge. If the oil were heavier than water, the upper compartment 3 would be the upstream chamber, and the respective inlets and outlets shown in the two chambers would be interchanged.
Patent GB-1098690-A (GB)
Title: Improvements in and relating to the scraping off of dirt layers firmly rolled on roadways and of incrustations thereof
IPC: E02F3/815
Filed: 1966-11-10
Abstract: 1,098,690. Road scrapers. JOSEF MEYER EISENBAU A.G. Nov. 10, 1966 [Dec. 22, 1965], No. 50364/66. Heading E1G. A road scraper for attachment to a vehicle 1 has at least one scraper blade 25 supported from a carrier element 22 through two knee joints 23, 26 each having spring means and rearwardly and downwardly extending links 24', 24" to force the blade into contact with the road surface. A number of blades is set across the width of the scraper, either in line or staggered, each connected with torsional means to two links 24" and two sets of knee joints, to allow for surface uneveness. The carrier 22 is arranged on an axial horizontal pivot 21 on a frame 12 to allow for transverse tilting and the frame 12 is supported on a parallelogram linkwork 13, 9, 6 raisable by a pneumatic jack 10, which may also act as a shock absorber or additional resilient suspension. The knee joints may have rubber or other torsion springs.
Patent GB-1376039-A (GB)
Title: Combined motor vehicle bumper and air deflector
IPC: B60R19/48
Filed: 1972-11-01
Abstract: 1376039 Vehicle bumpers; air deflectors DR ING HcF PORSCHE AG 1 Nov 1972 [15 Nov 1971] 50415/72 Heading B7J A combined bumper and air deflector mounted on a motor vehicle front end comprises a bumper 10 and a device 12 for deflecting air so as to increase the dynamic wheel pressure of front wheels 5, the device 12 being situated below the bumper 10 and connected therewith by a wall 11 which is shaped to merge into the bumper 10. Preferably, the bumper 10, wall 11 and device 12 are constructed integrally and the device 12 is a protruding enlargement of V-shaped cross-section at the bottom of the wall 11. The wall 11 is convex, extends over a major portion of the width of the vehicle and extends obliquely rearward from top to bottom.
Patent GB-504963-A (GB)
Abstract: 504,963. Collectors. SPERRY GYROSCOPE CO., Inc. Jan. 22, 1938, No. 2141. Convention date, Jan. 23, 1937. [Class 38 (i)] [Also in Groups XX and XXXV] In a high speed motor or motor-driven gyroscope in which the stator lies inside, and between 'the bearings for, the rotor, the three leads from the winding 22 on the stator 17 pass through the hollow pin 11 and are connected to the supply through the gimbal bearings. The lead 24 passes through a hollow trunnion 7, by which the casing 9 pivots in the ring 4, to a disc 25 rotating in a pool of mercury 29 in a chamber 26 carried by, but insulated from, the ring 4. A lead 24<SP>1</SP> connected to the chamber 26 passes in a similar manner through a trunnion by which the ring 4 pivots in an outer ring 2. The second lead 31 passes through the other pair of trnnnions in a similar manner. The third lead 32 is connected to the casing 9, electrical connection between the latter and the ring 4 being ensured by a disc 35 rotating in a pool of mercury 36.
Patent GB-1109319-A (GB)
Title: Improvements relating to light-sensitive materials
Inventor: ALLISON KENNETH
IPC: G03C1/61
Filed: 1963-12-23
Abstract: Light-sensitive paints comprise a vinyl acetate/acrylate copolymer emulsion internally plasticized during manufacture, a diazo or ferroprussiate light-sensitive compound and butoxyethoxyethyl acetate as coalescing agent.  The compositions may also comprise wetting agents, e.g. sodium dioctyl sulphosuccinate.  The paints may be applied to non-ferrous and primed ferrous metal substrates and latent images produced by exposure to ultra-violet light.
Patent GB-1044314-A (GB)
Title: Abrasive compositions
Inventor: STEPHENS DAVID WILLIAM
IPC: C11D3/14
Filed: 1963-12-24
Abstract: A stable pourable suspension of a finely divided water-insoluble abrasive material in an aqueous medium containing detergent, also contains a finely divided bleaching agent whose particles have been coated with an inert substance which is abradable by the abrasive material when the suspension is used in scouring. Suitable abrasive materials are silica, felspar, pumice, kieselguhr, emery, carborundum, and polyvinyl chloride. The bleaching agent  may be di- or tri-chloroisocyanuric acid or a water-soluble salt thereof, chloramine T, dichlorodimethyl hydantoin, calcium or lithium hypochlorite, an alkali metal permonosulphate, percarbonate or persilicate, or an organic per-acid or salt thereof.  The coating agent may be paraffin wax, a higher melting point microcrystalline wax, a polyethylene wax or an ester wax.  The aqueous medium may be selected from those described in Specifications 882,569 and 955,081, and in an example contains sodium dodecylbenzene sulphonate, lauric diethanolamide, potassium groundnut oil soap, and sodium tripolyphosphate in addition to abrasive and bleach.
Patent GB-1511657-A (GB)
Title: Security arrangement comprising an antipenetration composite
IPC: E05G1/024
Filed: 1975-11-20
Abstract: 1511657 Safe or strongroom walls MATHER & PLATT Ltd 20 Nov 1975 [23 Nov 1974] 50852/74 Heading E1A A security arrangement comprises an antipenetration composite in which hard refractory drill-resistent lumps of material are bonded or embedded in an organic matrix which is internally supported by a cavitied reinforcing agent and which produce noxious smoke when subjected to thermal attack, the whole forming a barrier against penetration. The reinforcing agent may be a perforated, slotted, meshed or fibrous material and may be preferably metallic. The refractory material may be one or more of alumina, zirconia, silica, silicon carbide, metal carbides and/or compounds of and/or the element of tungsten, boron, chromium, molybdenum and/or vanadium. The organic matrix may be a polyester or epoxy resin. Preferably a fibrous, granular or powder filler is present such as cellulose, glass or carbon.
Patent GB-1422955-A (GB)
Title: Carburetters for internal combustion engines
IPC: F02M7/11
Filed: 1972-11-04
Abstract: 1422955 Spray carburetters BRITISH LEYLAND UK Ltd 1 Nov 1973 [4 Nov 1972] 50912/72 Heading F1B Constant depression carburetter includes a vapour duct 4 connected to the float chamber air space, an outlet duct C connected to the constant depression region of the carburetter, and air duct D connected to a supply of air, each of the above ducts being connected to a flow control means F which includes a flow regulator to simultaneously regulate flows along the vapour and air ducts 4 and D to the outlet duct C so that the ratio of flows into duct C is maintained constant regardless of flow-rate, and a pressure sensitive element in communication with the vapour duct to adjust the flow regulator to increase flow along the vapour and air ducts with increasing pressure in the vapour duct and vice versa. The flow control means comprises housing 3 divided by diaphragm 1 into chamber 2 which is open to vapour duct 4 and chamber 17 which is open to air duct D. A second diaphragm 14 defines a third chamber 15 which communicates with chamber 17 through the bore of a tube 16 and port 20. The upper end of tube 16 is formed as a valve seating for diaphragm 1. Valve member 18a co-operates with seat 19 in tube 16 and has a stem 18 which engages diaphragm 1. Pivotally mounted on the housing is a plate valve 10 which co-operates with a valve seat 8 and a second valve seat 9. The circumference of valve seat 9 is five times that of valve seat 8, and the lift of the plate 10 on seat 9 is five times the lift on seat 8, so that the effective valve openings are in the ratio 25:1 Vapour pressure in conduit 4 moves diaphragm 1 and displaces valve member 18a and allows vapour past valve seat 8 and air past valve seat 9 to form a 12¢:1 mixture in chamber 13. As the vapour pressure in duct 4 decreases, diaphragm I rises, and atmospheric air passes seating 22 and enters chamber 15. An auxiliary valve 100 vents duct 4 to duct D when the engine is stopped. Spring 24 biases diaphragm 23 to open valve 100. To compensate for changes in atmospheric density a series orifice arrangement is provided, Fig. 4, in which duct 29 is connected to chamber 17, orifice 27 leads to duct C and the upper part of the device is connected to atmosphere and to duct D, chamber 17 being isolated from duct D. An aneroid capsule 30 controls the position of a valve 31 which determines the effective size of the orifice 26. The capsule may contain a dry inert gas so that it is responsive to a change in air temperature as well as pressure. The series orifice arrangement can result in cancellation of the enrichment for acceleration normally provided by the hydraulic piston damper, in a modification this effect is avoided by a further valve which admits atmospheric pressure to the float chamber, Fig. 5 (not shown).
Patent GB-1138266-A (GB)
Title: A toy coin freed delivery or vending machine
Inventor: MOSS GERALD ROY
IPC: G07F11/44
Filed: 1966-11-15
Abstract: 1,138,266. Coin-operated apparatus. PETER PAN PLAYTHINGS Ltd. 15 Nov., 1967 [15 Nov., 1966; 26 July, 1967], Nos. 51162/66 and 34285/67. Heading G4V. A coin-operated machine for dispensing sweets or other small articles comprises an open-topped bowl for containing the sweets, a spring-loaded platform in the base of the bowl, a coin operated latch engaging a lug on the platform to hold it in its depressed position and a delivery shoot. Insertion of a coin in the machine moves the latch to free the platform whereby one or more sweets are projected over the side of the bowl and into the delivery shoot. A flap pivoted to the top of the bowl falls across the delivery shoot if the machine is tilted or inverted to prevent fraudulent actuation.
Patent GB-1063789-A (GB)
Title: Grinding machines
Inventor: ANDREWS JOHN WILLIAM
IPC: B24B49/00
Filed: 1964-12-17
Abstract: 1,063,789. Grinding. BROOKES (OLDBURY) Ltd. Feb. 28, 1966 [Dec. 17, 1964], No. 51330/64. Heading B3D. A grinding machine, of the type described in Specification 849,638 in which a workpiece 12 is traversed past a grinding wheel 15 on a biased pivoted head 14, comprises a lightsensitive device 17 disposed adjacent the grinding wheel and arranged so that light from sparks falls on the device and means, operable by the device when the light from the sparks ceases, for applying force to the head to check and reverse the motion caused by the biasing. The pneumatic cylinder 16 for urging the grinding wheel into contact with the workpiece is double-acting; if the workpiece overruns the grinding wheel, the light-sensitive device 17 senses the cessation of sparks and causes the reverse movement of the pneumatic cylinder to raise the grinding wheel. A timing device permits the return of the grinding wheel on to the workpiece. The length of time the grinding wheel is in contact with the workpiece may be measured.
Patent GB-1413107-A (GB)
Title: Hydraulic motors
IPC: F04B1/10
Filed: 1971-11-09
Abstract: 1413107 Hydraulic reciprocating motors RENOLD Ltd 6 Nov 1972 [9 Nov 1971] 52037/71 Heading F1A The cylinders 51 in the rotary cylinder block 50 of an hydraulic motor communicate successively with a ring of alternating inlet and outlet ports 12, 15 in a stationary pintle 1, a separate ported ring 19 movable with the cylinder block being disposed between the latter and the pintle 1. The ring 19 has radial ports 20 corresponding to the cylinders 51, communication between each cylinder 51 and its port 20 being via an insert 55  press fitted into a hole 53 in the inner end of the cylinder. The gap between each insert 55 and the ring 19 is sealed by a plastics ring 56 urged by a resilient O-ring against a flattened area surrounding the associated port 20. Each ring 56 may be disposed in an annular recess cut in the outside (as shown) or the inside Figs. 6 and 7 (not shown) of an insert 55. In a further embodiment the inserts 55 are dispensed with, Figs. 8 and 9 (not shown), each sealing ring 56 being disposed in an annular groove (162) in the ring 19, the annular groove surrounding the respective port 20. Circumferential sealing rings (167) on the outer periphery of the ring 19, either side of the sealing rings for the ports 20 define a zone maintained at a pressure intermediate the inlet and outlet pressure. The motor may have several rows of axially aligned or staggered cylinders. Each cylinder 51 contains a piston 60 having a roller follower constructed as described in Specification 1413108.
Patent GB-1125759-A (GB)
Title: Improvements relating to shaft bearing arrangement
IPC: F16C33/10
Filed: 1965-12-10
Abstract: 1,125,759. Bearings. LINDE A.G. 10 Dec., 1965 [11 Dec., 1964], No. 52531/65. Heading F2A. [Also in Division F1] A shaft bearing assembly supporting the shaft of an expansion turbine comprises a gas bearing in a first region at a temperature lower than room temperature, and an oil lubricated bearing in a second region at a higher temperature than the first region. In Fig. 1 pressurized gas is supplied through branch 11 of supply line 7 to the gas bearing 9 and is discharged from line 12. Shaft portion 131, secured to thrust-ring 132, is journalled in an oil bearing, pressurized oil being supplied by line 15 and discharging into track 17. Gas leaking from bearing 9 flows along the shaft towards +he oil bearing to prevent oil penetration. Ring 134 acts with ring 132 as an hydraulic brake. In Fig. 2 (not shown), the gas bearing is part-spherical and the oil bearing comprises a tapered shaft portion (31) supported in an axially movable ring to facilitate braking. In Fig. 3 (not shown) a ring (43) on shaft (42) has an inclined surface (47) engaging adjustable bearing pads, and an outer surface engaging an axially movable bush (46). In Fig. 4 (not shown), a braking ring (51) is adjusted by pressurized oil.
Patent GB-1094947-A (GB)
Title: Tape punch
Filed: 1966-11-24
Abstract: 1,094,947. Selective punching apparatus. OHR-TRONICS Inc. Nov. 24, 1966 [Dec. 6, 1965], No. 52579/66. Heading B4B. Apparatus for punching tape 2 comprises a plurality of punch pins 3 each having associated therewith a unitary interposer 5 or 5a comprising a head for driving the punch pin, the interposer being pivotally connected to a reciprocating shaft 8, being normally urged against a shaft 12 by means of a spring-biased rod 15 and having extending from its pivot a horizontal arm against which the armature 6 of an electromagnet 7 is normally pressed by a spring-biased rod 16, the arrangement being such that when an electromagnet is energized, the corresponding punch pin is driven as the interposer is moved upwardly. Each punch pin passes through a stripper shaft 13 connected by links 14 to the shaft 8. The shaft 8 is reciprocated from an eccentric drive shaft 19 by means of connecting rods 9. The tape is fed stepwise by means of a sprocket wheel drive mechanism.
Patent GB-1213798-A (GB)
Title: Improvements in or relating to glass
IPC: C03C3/23
Filed: 1967-11-22
Abstract: 1,213,798. Phototropic glass composition. CARL-ZEISS-STIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN.]. 22 Nov., 1967 [24 Dec., 1966], No. 53084/67. Heading C1M. A phototropic glass, whose properties depend on Ag halide crystals and optionally metallic Ag, contains by wt.: (1) B 2 O 3 , # 45%. It may also contain (2) alkaline earth metal oxide, 0-44%; (3) alkali metal oxide, 0-12%; and (4) PbO and/or Al 2 0 3  and/or ZnO, 0-25%. 5i0 2  may be absent. The glass may contain as stabilizers # 0.8% CuO and/or # 0À05% Cr 2 O 3 . Also present may be alkali metal fluoride, chloride, bromide or iodide, and ZrO 2 . The batch may contain silver nitrate, potassium dichromate, boric acid, and potassium carbonate. The batch may be melted at 1250‹ C., refined at 1270‹ C., and cooled to 450‹ C., held at 460‹ C. for 13 hours, and then cooled to room temperature. Specification 1,213,799 is referred to.
Patent GB-1172610-A (GB)
Title: Loader bucket including a side ejector.
IPC: E02F3/407
Filed: 1967-11-22
Abstract: 1,172,610. Excavator buckets. CATERPILLAR TRACTOR CO. 22 Nov., 1967 [16 Dec., 1966], No. 53124/67. Heading E1F. For causing side discharge of any material contained between the bottom and back walls 10, 11 of a sideless excavator bucket there is provided a telescopic jack-reciprocated ejector plate 24 that extends at right angles to said walls.
Patent GB-1262691-A (GB)
Title: Data processing system having current drive for transmission line
IPC: G06F3/00
Filed: 1969-10-30
Abstract: 1,262,691. Telegraphy. BURROUGHS CORP. 30 Oct., 1969 [12 Nov., 1968], No. 53164/69. Heading H4P. A high-speed transmission system includes a line connecting one or more receivers to one or more transmitters which have a digitally controlled current source of a high output impedance for applying current pulses to a line. It is stated that the system enables signals to approach the propagation time of the line more closely than systems employing voltage pulses.  A line l1, Fig. 1, is terminated in impedances Zt and voltage sources Vte, Vtr and has a plurality of transmitters and receivers connected thereto which are synchronized by a pulse source 14. The period between pulses is equal to twice the propagation time of line. A current source I is connected to the line through a switch 18a controlled by a unit 20 synchronized with the source 14. An opening of switch 18a in unit lk causes current at terminal lk to drop which propagates along the line 12a towards terminal ri. At the same time switch 18a in unit ri is rendered conductive which applies a current pulse from the line, the two current pulses propagating towards each other causing a current change of twice that of one source. The current from terminal ri eventually reaches terminal lk and re-establishes the former level. A particular form of switch unit, Fig. 2, has an output transistor 22 of high output impedance and hence constant current characteristics connected to line 12a and controlled by transistor 24, 25 forming an AND gate, which receives input timing and control signals. An alternative form of transmitter giving negative signals is illustrated in Fig. 3 (not shown). The receiver 16 has an input transistor 82 normally non-conductive controlling differentially connected transistors 86, 88 connected to outputs through transistors 96, 98. On receipt of a negative current pulse transistors 82, 86 are biased conductively and 88 non-conductively hence transistor 96 will give a low output and 98 a high voltage output. It is essential that voltage swings on the line are not limited otherwise advantages of the system are lost. In a preferred arrangement only two transmitters are allowed to apply current to line 12a simultaneously. Multiple transmission lines with transmitters and receivers are envisaged by the Specification.