baber/WOPTO huggingface dataset:
Patent GB-654774-A (GB)
Title: Apparatus for generating wide electric pulses from a pulse train of narrow pulses
IPC: H03K5/01
Filed: 1948-05-26
Abstract: 654,774. Pulse lengthening circuits. COPE, J. E., LORD, A. V., BENNETT, A. J., and PYE, Ltd. May 26, 1948, No. 14175. [Class 40 (vi)] In a pulse lengthening circuit comprising a valve which is normally biassed so that grid current flows, the short input pulses reduce the charge on a capacitor in the grid circuit so that the valve is cut-off the capacitor then recharging until the grid current flow recommences, the recharging period determining the duration of the output pulse. Fig. 1 shows a pulse lengthening circuit in which short positive-going input pulses render valve V1 conducting to discharge capacitor 11 so that the bias on valve V2 is increased, and the fall in anode current in the valve produces the leading edge of the output pulse. Capacitor 11 recharges through resistor 12 until grid current flows in valve V2 and the consequent rise in its anode current produces the trailing edge of the output pulse. Fig. 3 shows a modification in which the position of the trailing edge of the output pulse is determined by applying a positive " stop pulse to a valve V3 to render it conducting. The high valve charging resistor 12 is effectively shorted by valve V3 and capacitor 11 is rapidly charged to the grid current flow point, the tapping between resistors 42, 43 being at a potential equal to that of the grid of valve V2 when grid current is flowing.
Patent GB-1122860-A (GB)
Title: Method and plant for cooling and liquefying gaseous mixtures at low temperature
Inventor: PERRET JEAN
IPC: F25J1/00
Filed: 1966-03-31
Abstract: 1,122,860. Liquefication of gases; refrigerating. COMPAGNIE FRANCAISE D'ETUDES ET DE CONSTRUCTION TECHNIP S.A. 31 March, 1966 [31 March, 1965], No. 14249/66. Headings F4H and F4P. Compressed gas mixture, e.g. natural hydrocarbon gas, is cooled, liquefied and supercooled in the tube sides of series arranged heat exchangers 130, 132, 134, 136 traversed on their shell sides by downward counterflowing expanded liquid refrigerant undergoing revaporization and obtained by sequentially condensing t 103, 107, 111, 115 the several components of compressed refrigerant gas mixture discharged by a compressor 101, separating at 105, 109, 113 condensates L1, L2, L3, withdrawing L1, L2, L3 through ducts 126, 122, 117 expanding a portion of each condensate at valves 127, 124, 126 into the shell sides of condensers 107, 111, 115 to cool the tubes thereof to effect said sequential condensation of said refrigerant gas mixture, passing super-cooled condensate from condenser 115 through a duct 116, upwardly through tubes in heat exchangers 134, 136, an expansion valve 142, the shell side of heat exchanger 136, adding the remainder of condensate L3 after passage of the latter up tubes of exchanger 134 and expansion at a valve 146, passing the combined refrigerant streams down the shell side of exchanger 134, adding the remainder of condensate L2 after passage of the latter up tubes of exchanger 132 and expansion at a valve 150 and passing the combined refrigerant streams down the shell sides of exchangers 132, 130 back to the compressor inlet 152. Those portions of condensates L1, L2, L3 expanded into the shell sides of condensers 107, 111, 115 and vaporized therein are also returned to the refrigerant gas mixture compressor 101 through an inlet 128. Product liquid natural gas is expanded at a valve 138 into a duct 139 leading to a storage container. For liquefying natural methane a suitable refrigerant gas mixture comprises 0 to 3% nitrogen, 20 to 32% methane, 34 to 44% ethane, 12 to 20% propane, 8 to 15% butanes and 3 to 8% pentanes and heavier hydrocarbons.
Patent GB-1405875-A (GB)
Title: Diaphragm servomotors
IPC: F15B15/10
Filed: 1974-04-01
Abstract: 1405875 Diaphragm actuators COMPTEURS SCHLUMBERGER 1 April 1974 [30 March 1973] 14279/74 Heading F1D A diaphragm actuator, Fig. 1, comprises a diaphragm 11 of closed toroidal form housed in a container 10, which acts on a spring-loaded plate 12 to which a rod 14 is connected. This arrangement removes sealing problems and prevents contact between the pressure fluid and metallic parts. Fig. 3 shows an embodiment in which a portion 21 of the diaphragm is made of unreinforced elastomer whilst a portion 22 is made from a canvassed elastomer, e.g. nylon-neoprene.
Patent GB-811090-A (GB)
Title: Improvements in or relating to presses
Inventor: BURSLEM ROY
IPC: A43D100/02
Filed: 1957-05-06
Abstract: 811,090. Mechanical presses. T.A.I.P. (ENGINEERS) Ltd. May 6, 1957, No. 14329/57. Class 87(2). [Also in Group XXH] On moving the hand operating lever 3 clockwise as seen in Fig. 1, a link 6 moves an arm 8 projecting from a cam 9 and rotates the cam anticlockwise, overcoming the pull of a spring 11, until its camming edge 22 meets a transverse bar 17 joining pillars 15, 16, Fig. 2, which are slideable in guideways 13, 14. At their upper ends the pillars 15, 16 are coupled by cross members 20, 21 to which the press tool is attached. The work is held on a work-table 25. When the operating lever 3 is in its initial position, Fig. 1, the position of the work-table is such that the work is not underneath the press tool 2 and, during the first part of the movement of the lever, a lug 26 on the cam 9, by engaging behind a finger 27 of a block below the work-table, advances the table to the position where the work is below the tool, the lug 26 then slipping below the finger 27. The action of the camming edge 22 on the bar 17, as the clockwise movement of the lever 3 continues, lowers the pressing tool on to the work. In the first part of the reverse movement of the lever 3 the pressure of the camming edge 22 on the bar 17 is removed, a spring 18 then raising the press tool ; in the second part of the movement the lug 26 engages behind a finger 28 and the work-table is retracted. The descent of the press tool is restricted by a stop 29, on the pillar 16, which meets the surface of the worktable until, when the table moves into position, a recess 30 comes beneath the stop. The worktable may be slid out for servicing by unscrewing a stop pin 31. Alternatively the cam 9 may be linked to a pedal or to a compressed air ram.
Patent GB-477393-A (GB)
Title: Improvements in the treatment of textile yarns or threads with rubber
IPC: D06B3/06
Filed: 1936-05-22
Abstract: 477,393. Coating yarns. FENNER & CO., Ltd., J. H., FENNER, J. H., HAINSWORTH, S. B., and ANDERSON, J. H. May 22, 1936, No. 14452. [Class 140] Textile yarns or threads are coated with rubber by passing them from the atmosphere through a flexible diaphragm 3 sealing the submerged entrance to a vessel containing stabilized rubber latex 4 and through the liquid surface into the atmosphere and then drying them after leaving the liquid and prior to contact with any guide or surface. The yarn &c. may first be treated with a coagulant, as in a bath 2.
Patent GB-729855-A (GB)
Title: Improvements in spool ovens
IPC: C21D9/68
Filed: 1953-05-22
Abstract: 729,855. Winding and reeling. SIEMAG VERTRIEBGES. May 22, 1953 [May 26, 1952; Dec. 30, 1952], No. 14461/63. Class 83(4). A spool oven for strip-material to be rolled, having a. driven slotted winding drum for receiving the beginning of the strip and a roller bed extending beneath the oven, is characterized by the provision of a heat-insulating covering arranged between the bottom of the oven and the roller bed and displaceable parallel to the plane of the roller bed. Strip from a driving device is fed to a slotted winding drum in a spool oven 3, by pivoted means 4. A roller bed 2 beneath the oven is protected from the heat thereof by a plate 1, which is moved, when no winding is taking place, between the oven and the rollers. This plate may be made in sections which are moved apart, when strip is to be wound, only a sufficient distance to leave a slit for the pivoted strip guide means.
Patent GB-1407813-A (GB)
Title: Method of bonding surfaces together using adhesive compositions
IPC: C09J4/00
Filed: 1972-03-28
Abstract: 1407813 Anaerobic adhesives CIBA-GEIGY AG 7 March 1973 [28 March 1972] 14461/72 Heading C3P An anaerobic adhesive composition used to bond two surfaces together comprises a peroxide or hydroperoxide and a mono(meth)- acrylate ester of the formula where R<SP>3</SP> is an organic radical linked through a carbon atom other than the carbon atom of a carbonyl group and R<SP>4</SP> is hydrogen or methyl. The composition may also contain an inhibitor and an, accelerator or an accelerator may be applied to the surfaces to be bonded as a primer before applying the adhesive. In examples the monomers used are 1-(3-methacryloxy-2-hydroxypropoxy)butane or but-2-en-4-ol or but-3- ene, mixed 3-methacryloxy-2-hydroxypropyl cresyl ethers or furfurylether or p-cresyl ether; mixed 1 - (3 methacryloxy - 2 hydroxypropoxy)octanes, 3 - methacryloxy - 2 - hydroxypropoxybenzene or 3-acryloxy-2-hydroxypropyl cresyl ethers. The peroxide used was cumene hydroperoxide, tert.-butyl hydroperoxide or 2,5- dimethyl - 2,5 - di - (tert. - butylperoxy)hexane. Primers comprising solutions in acetone of 2- mercaptobenzthiazole, triethylene tetramine, propane - 1,2 - diol, n - butanol or trichloroethylene may be applied to surfaces to be bonded before the adhesive.
Patent GB-867855-A (GB)
Title: Improvements in conveying arrangements in harvesters for roots, tubers or the like
IPC: A01D33/08
Filed: 1956-05-09
Abstract: 867,855. Root crop harvesters. WHITSED, W. J. May 9, 1957 [May 9, 1956], No. 14470/56. Class 6(3). [Also in Group II] A tractor-drawn harvester for roots and the like comprises an elevating conveyer 15, supplying a feeding conveyer 16, which lies within the circuit of the conveyer 15 and across its path. The harvester has root-lifting apparatus 112 comprising a blade 13 with raising and lowering mechanism 14. Haulms or plant tops conveyed from the blade 13 are removed by a mechainism 137, e.g. as described in Specification 670,706, the roots or tubers being then carried up by the endless conveyer 15 tines 31 of which project during part of their upward passage into a guide way 32 having an outlet 33 for discharging the roots on to the conveyer 16. This conveyer delivers material past a resilient baffle 34 to an inclined plate 35 associated with a rotating roller 36 leading to a transverse separating conveyer 17. The roots pass across the conveyer 17 on to a conveyer 18 and thereby to a discharging conveyer 20, and the separated earth is carried by the conveyer 17 to a conveyer 19 and thereby to a shoot 21. Drive is taken from the tractor via a shaft 46 to a gear-box 48 from which chain drives 49, 50, 51 extend to the conveyers 18, 19, and 16 respectively. The roller 36 is driven through intermediate gearing, including that of the conveyer 16, from the chain drive 51. A chain drive 54 from the gear-box 48 drives the conveyer of the lifting apparatus 112 and the mechanism 137 ; and a shaft 55 carries drive to the conveyers 15, 17 and 20 from shaft 46 through a chain 56. Specification 833,626 also is referred to.
Patent GB-679071-A (GB)
Title: Improvements relating to tables
Inventor: HICKIN NORMAN
IPC: A47B3/12
Filed: 1950-06-12
Abstract: 679,071. Furniture joints. EVERTAUT, Ltd. March 29, 1951. [June 12, 1950] No. 14552/50. Class 52 (ii). The invention relates to a joint for a detachable table leg 1. Each side of the table top 6 has a depending skirt 7 formed with an inturned flange 9. In the corner space between the skirts, the top 6 carries a plate 10 having two struck up lugs 12, 13, one adjacent but spaced from each skirt 7. The hollow top of the leg has adjacent reinforced sides 1a which fit between the skirts and the lugs and which are screwed by screws 5 to an angle plate 14 welded to the adjacent skirt flanges 9.
Patent GB-1340098-A (GB)
Title: Railway systems
IPC: B60L13/04
Filed: 1971-05-12
Abstract: 1340098 Railway systems MESSERSCHMITT - BOLKOW - BLOHM GmbH 12 May 1971 [3 June 1970] 14553/71 Heading B7L A railway system having vehicles 1, 2, 3 supported above a track by means of air cushions or magnetic means (not shown) is provided with metal guide rails 5 on the track and magnetic guide units 6, 7, 8 on the vehicles, the units being of elongated form and deformable construction and extending along each side of the vehicles to form lateral air gaps 12 with the rails 5, the units being displaceable at curved sections of the track to maintain the air gaps 12 substantially constant along the length of the vehicles. The magnetic units are displaced to arcuate form at track curves by a rod system comprising a main rod 15 pivoted to bell cranks 16 which are mounted in bearing pedestals on, e.g. the vehicle 1, the rod 15 being connected to the vehicle 2 so that rotation about the coupling 4 between the vehicles 1, 2 will pivot the bell cranks 16 and in turn displace rods 13 attached to the magnetic units 6. In an alternative embodiment the magnetic units are made from smaller units disposed in rows along the sides of the vehicles, each unit being displaceable by a rod system as described above.
Patent GB-196831-A (GB)
Title: Improvements in or relating to turn indicators for aircraft
IPC: B64D45/00
Filed: 1922-05-24
Abstract: 196,831. Brown, J. P. May 24, 1922. Indicating particular readings.-In an instrument in which the rate of turn, or the turning movement, of an aircraft is indicated 'by the precession of a gyroscope, the precession spindle 12 carries a rotary dial 13 which is opaque except for a clear portion or a hole 15. Mounted behind the dial 13 is a stationary colour-filter 16 comprising a diamond-shaped clear portion or hole 17, a green portion 18 and a red portion 19. The holes 15, 17 may be provided with lines &c. 20, 21 which are coincident during straight flying. The parts 18, 19 of the filter may also be marked with lines 22 in continuation of two sides of the diamond to give a measure of the turning movement, for which purpose also the dial 13 is marked with graduations 14 read against a stationary index 23. The filter and the index may be movable for zero adjustment. Illumination is provided by a lamp 24. Instead of being formed as plane surfaces as shown the dial and filter may be of cylindrical shape, the markings &c. being on the curved surfaces of the cylinders.
Patent GB-970080-A (GB)
Title: Improvements in or relating to drawing arrangements for workpiece-drawing presses
IPC: B21D24/08
Filed: 1962-04-16
Abstract: 970,080. Cupping. E. SCHWARZ. April 16, 1962 [April 28, 1961], No.14616/62. Heading B3Q. A deep drawing press comprises a two-part fluid pressure drawing cylinder, in each part of which a piston is provided, the cylinder parts being connected together, without valves, by a pipe, the piston in one cylinder part being in operative connection with a blank holder for carrying the workpiece being drawn, and the piston in the other cylinder part being in cooperation with a pneumatic or spring cushioning device, the said one cylinder part being received by an intermediate plate provided on a table of the press beneath a tool base plate thereof. In an embodiment the press comprises a base plate 12, a drawing die 13, a blank holder 14 supported on studs 15 attached to an hydraulic piston 19 working in a cylinder 18 accommodated in an intermediate plate 17 resting on the table 11 of the press. The cylinder 18 is connected to a second cylinder 21 by a pipe 20. The piston 22 of the second cylinder has a non-return valve 24 which is actuated by a needle 25 to vent the cylinder as the piston approaches the end of its stroke. As the deep drawing operation progresses the piston 22 acts through studs 26 on a counter plate 27 of a cushioning device comprising a spring 28 wound around a bolt 29 the spring pressure being adjusted by means of nuts 30. In the embodiment of Fig. 2 a pneumatic cushioning device is used comprising a cylinder 31 coupled by means of a piston rod 32 to the end plate 23 of the second cylinder 21. Compressed air is supplied to the piston 33 in the . cylinder 31 through a conduit 34. The cushioning studs 26 act on the end face of the cylinder 31.
Patent GB-350191-A (GB)
Title: Improvements relating to bobbins
IPC: B65H75/14
Filed: 1930-05-13
Abstract: 350,191. Bobbins. WILSON & CO., BARNSLEY, Ltd., WILSON, W. B., Beevor Works, GREENWOOD, A., 6, Coniston Road, and BROWN, W., 176, Doncaster Road, all in Barnsley. May 13, 1930, No. 14657. [Class 120 (iii).] Bobbins are provided with metal liners A made by contracting a length of metal tube on a mandrel so that it forms radial folds a which are forced into the bobbin or into recesses formed therein, so securing the liner against turning in the bobbin bore. The liner may be secured against longitudinal displacement by having tongues a<1> punched outwardly and forced into the bobbin. The liner may be constructed of brass, copper, steel or any other suitable metal.
Patent GB-440542-A (GB)
Title: Improvements in and relating to electric lamps and methods of making the same
IPC: C03B23/09
Filed: 1935-05-20
Abstract: 440,542. Glass manufacture. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 20, 1935, No. 14731. Convention date, May 22, 1934. [Class 56] A method of making lens-fronted electric lamp bulbs, particularly small bulbs for flash lamps, consists in heating one end of a glass tube 10, Fig. 4, until the glass fuses into a solid mass 12 which acquires a lenticular form without further shaping. An annular protuberance 14, Fig. 5, may be formed on the tube 10 to serve as a shoulder for a base shell, as described in Specification 433,033, [Group XI]. This may be done by directing a flame 15 on to the wall of the tube while it is in rotation, and then enclosing the tube in a mould 16 and directing air pressure from a nozzle 18<1> into the tube.
Patent GB-807429-A (GB)
Title: Improvements in or relating to side-delivery raking devices
IPC: A01D78/00
Filed: 1956-05-11
Abstract: 807,429. Haymaking machines. VAN DER LELY N. V. C. May 11, 1956 [May 11, 1955], No. 14733/56. Class 6(3). Rake-wheels 14 are arranged in groups on beams 3A, 3B, interconnected by a system of parallel links 7, 8, 6, 23, so that the rake-wheels can be arranged in a single line, for side-delivery, or in parallel groups, for swath-turning, and are constrained by the links to remain parallel to their original direction during movement from one arrangement to the other. In one form the rake-wheels are carried on pivoted cranks 13 suspended by springs 16 from the beams 3A, 3B. The beam 3A is connected to a beam 6 by rigid members 4, 5, but the beam 3B is connected by links 7, 8 pivoted at 9, 10, 11 and 12, but rigid with members 21, 22 with which they form the arms of two bell-cranks, the free ends of the members 21, 22 being pivoted to a bar 23. For side-delivery, the beams 3A, 3B are held in alignment by a catch 18, but for swath-turning the beam 3B is swung around the pivots 9, 10 in a clockwise direction until the beam lies close to the drawbar 20 to which it is secured by a latch-member 27. In Fig. 3, U-shaped beams 45, 46 are pivoted to parallel beams 55, 56, the beams 45, 46 carrying rakewheels 40 on the ends of their limbs. Adjustable castor-wheels 52, 53 are mounted on the beams 45, 46, and an adjustable drawbar 63 is pivoted to the point 60.
Patent GB-1403175-A (GB)
Title: Elastic cover and method of applying said cover
IPC: B29C63/42
Filed: 1973-03-27
Abstract: 1403175 Cable joints GOODYEAR TIRE & RUBBER CO 27 March 1973 [8 May 1972] 14753/73 Heading H2E An elastic sleeve 2, provided throughout its length with three or more ribs 8, which may have enlarged portions 9, or holes, to facilitate gripping them, is stretched by outwardly directed forces, applied to the ribs by external gripping jaws 10, enabling it to be passed over the end of an electric cable, or other member, and following a jointing operation the sleeve is released and forms a permanent cover and moisture seal over the joint, contracting tightly over a cable of circular, elliptical or rectangular cross-section. The ribs 8 may then be cut away with a knife (26), Fig. 11 (not shown), giving the sleeve a smooth external surface which blends with its conically bevelled ends (4), Fig. 1 (not shown), enabling the cable to be reeled or dragged over rough surfaces without snagging. A sealing adhesive, e.g. flame-retardant neoprene rubber cement, may be injected from a dispenser (25) (not shown) or may form an initial internal coating to sleeve 2. The sleeve may be of natural rubber, synthetic rubber or flexible polyurethane material, but preferably it may be of the flameretardant neoprene or styrene butadiene rubber, rendering it suitable for use in underground mines.
Patent GB-253547-A (GB)
Title: Improved process for the production of artificial silk yarns and the like
IPC: D02G3/04
Filed: 1926-06-11
Abstract: 253,547. Grand, J. A. June 13, 1926, [Convention date]. Threads are produced by the use of artificial silk cut to suitable length and mixed prior to spinning with hemp, flax, jute, nettle, or like vegetable fibres, which have been previously freed from gum and rendered silky in appearance by mercerizing.
Patent GB-640615-A (GB)
Title: Improvements in or relating to board games
IPC: A63F3/00
Filed: 1948-06-01
Abstract: 640,615. Board games. BENT, K. P. June 1, 1948, No. 14782. [Class 132 (ii)] A board game representing fox-hunting comprises two identical boards marked with " coverts " 6, " earths " 7, a " waterway " 10 and " farm buildings 9, one player moving a "fox" over one board while other players move named " hounds " over the other board, the game being directed by an umpire who follows it either on a third identical board or on a chart. An indicator for wind direction is provided. The competing players are in ignorance of their opponents moves except as disclosed by the umpire. The squares of the boards are numbered and the markings may be a map of hunting country.
Patent GB-1198311-A (GB)
Title: Treatment of Crude Products from the Prins Reaction
Inventor: JOHNSON PETER
IPC: C07C29/76
Filed: 1967-03-31
Abstract: 1,198,311. Recovering Prins alcohols. BRITISH PETROLEUM CO. Ltd. 28 March, 1968 [31 March, 1967], No. 14844/67. Heading C2C. The crude products from a metal halide catalysed Prins reaction for converting olefins which have chains branched at the double bond to unsaturated primary alcohols by reacting with the formaldehyde in the presence of a metal halide catalyst are treated by quantitatively neutralizing the metal halide with sodium or potassium hydroxide dissolved in an inert organic solvent and subsequently separating the products from any unreacted formaldehyde. Suitable metal halide catalysts are zinc chloride, stannic chloride and silicon tetrachloride. Any unreacted formaldehyde may be separated from the products by distillation and is most preferably recycled. In the examples the alcohols formed are unsaturated nonanols and a small amount of low-boiling and high-boiling residues. The olefins used in the examples are 2-ethyl-hexene-1 and α-di-isobutylene.