baber/WOPTO huggingface dataset:
Patent GB-524230-A (GB)
Title: Cathode ray apparatus for recording in a visible form intelligence in the form of electrical signals
IPC: H01J29/14
Filed: 1939-01-24
Abstract: 524,230. Writing telegraphy. SCOPHONY, Ltd., and ROSENTHAL, A. H. Jan 24, 1939, No. 2491. [Class 40 (i)] [Also in Groups XL and XXXVI] In a cathode-ray tube the screen has a micro-crystalline layer 10 of an alkali halide such as potassium bromide and/or sodium iodide; as described in Specification 513,776, [Group XL], this acquires an opaque deposit when subjected to a cathode ray, whereby a permanent or semi-permanent record may be obtained on the screen. Potassium chloride may be used. Such a record may be used in picture telegraphy, telewriting or oscillography, the beam effecting the record being deflected over the screen in synchronism with the transmitting agent. The image on the screen may be photographed or used as a lantern slide; or the layer 10 may be mounted on a removable end wall 9, the image after removal from the tube being used as a positive or negative. The opaque deposit may be removed from the layer by scanning with an intense ray or by heat which can be applied by a coil surrounding the end of the tube. A thin transparent conducting film 11 is placed in front of and it may be behind the layer 10, these films carrying a potential. In telegraphy the picture to be transmitted may be printed on the screen of a cathode ray tube and be scanned by the beam ; the material used for printing the picture may be such that it has different electrical conductivity or a different secondary emissive power than that of the plate on which it is formed. The picture signals are applied to the terminals 8.
Patent GB-1242046-A (GB)
Title: Polyester sheet material
Inventor: REEDY ALBERT JOHN
IPC: C08J7/043
Filed: 1969-01-16
Abstract: 1,242,046. Coated polyester film. EASTMAN KODAK CO. 16 Jan., 1969 [22 Jan., 1968], No. 2525/69. Heading B2E. [Also in Divisions C3 and G2] A flexible, biaxially oriented polyester sheet has on at least one surface a sub-layer, a matte layer and, coated on the matte layer, a layer of an anti-ghosting material comprising from 1 to 25 mg./sq. dm. of a tergel or a first layer of a polyvinylidene chloride/ acrylic ester/carboxylic acid terpolymer containing at least 3% equivalents of carboxylic acid and a second layer containing from 0.2 to 3.5 mg. of gelatin per sq. dm. The tergel may be obtained by polymerization of 5-45% of acrylonitrile, methacrylonitrile, or an alkyl acrylate in which the alkyl group contains 1-6 carbon atoms, from 50 to 90% of vinylidene chloride, from 2 to 12% of itaconic acid or monomethyl itaconate or 4-12% of acrylic acid, 15 to 60% by weight of gelatin based on the total weight of the monomer components. The terpolymer employed may comprise 35 to 96 mole percent of vinylidene chloride, from 3.5 to 64.5 mole percent of acrylic acid ester or nitrile and from 1.5 to 25 mole percent of acrylic acid, methacrylic acid, itaconic acid or the half-methyl ester of itaconic acid. The acrylic ester or nitrile may be acrylonitrile methacrylonitrile, methylacrylate, ethylacrylate, butylacrylate, methylmethacrylate, ethylmethacrylate and butylmethacrylate. The comonomer may also be vinyl chloride. Numerous suitable polyesters for the base material are specified. Suitable sub-layers are described which contain adhesion promoters such as phenols, acrylic acid, trichloroacetic acid and chloral hydrate. The matte layer may contain inorganic abrasive materials such as silica, glass, quartz, diatomaceous earth, calcium carbonate, polyamides and interpolyamides. A light-sensitive emulsion mixture may be applied above the anti-ghosting layer(s).
Patent GB-1091890-A (GB)
Title: Production of carbon or graphite filaments
IPC: D01F9/145
Filed: 1966-01-19
Abstract: Carbon or graphite filaments are produced by melt-spinning a pitch-like substance or a mixture of such substances, which contain C and H, having a C content from 91-95% and a mean M.W. of at least 400, treating the spun filament to render it infusible and then subjecting the treated filament to a carbonization or graphitization treatment.  "Pitch-like substances" are defined as petroleum pitch, coal-tar pitch, natural asphalts and pitch-like industrial by-products. The method of determination of per cent C, and mean M.W. are defined.  An additive may be incorporated prior to spinning, to improve the spinnability or for facilitating infusibilization of the spun filaments, e.g. an inorganic halide or peroxide.  The infusibilization may be effected by heating in oxygen or ozone. Carbonization is effected in the absence of oxidizing media at up to 2000 DEG  C.  A pitch-like substance having the required per cent C and mean M.W. may be obtained by dry distillation of a pitch at 300-400 DEG  C.
Patent GB-1121944-A (GB)
Title: Eyeless needles and process for their production
IPC: B21G1/08
Filed: 1967-01-18
Abstract: 1,121,944. Making needles. B. BRAUN K.G. 18 Jan., 1967 [7 Feb., 1966], No. 2610/67. Heading B3A. [Also in Division D1] An eyless needle is made by shaping a tube to a closed point portion. The surgical needle shown is made by cold hammering one end of a tube into conical form ending in a point 2 which is finished off by grinding, and by cold hammering the other end into frusto-conical form 4 having an opening just large enough to admit a suture 5, part 4 then being closed on the suture by pressure.
Patent GB-1211705-A (GB)
Title: Drying process
Inventor: BUCKLEY CHARLES HAROLD
IPC: C09C1/26
Filed: 1967-01-18
Abstract: 1,211,705. Drying pigments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 15 Jan., 1968 [18 Jan., 1967], No. 2632/67. Heading C1A. [Also in Division F4] A process for drying an aqueous paste of molybdenum chromate, copper oxychloride, zinc chrome, barium chromate, lead chromate or Prussian blue to yield dry unaggregated particles comprises mixing the paste with butanol (e.g. isobutanol) in an amount at least twice the weight of water in the paste and heating the mixture at 60-100‹ C. The mixing is preferably carried out so that the particles are wetted with butanol rather than water. The heating may be carried out in a steamheated dryer under reduced pressure. The mixture may be concentrated by filtration before heating it. The butanol may be recovered from the butanol-water distillate produced in the heating step.
Patent GB-233046-A (GB)
Title: Improvements relating to feed water systems for condensing steam plant
IPC: F22D3/00
Filed: 1924-02-01
Abstract: 233,046. Stubbs, A., and Metropolitan- Vickers Electrical Co., Ltd. Feb. 1, 1924. Regulating delivery of two combined pumps.- In a feed-supply system for a condensing steam plant, of the kind wherein differences between the supply of the condenser extraction pump and the demands of the boiler feed pump are compensated by the variations of water level in a surge tank between the pumps, a second surge tank is connected to the system independently of the first surge tank, and provision is made whereby normal and abnormal fluctuations of supply and demand are compensated respectively by variations of water level in the first surge tank and in both surge tanks. The supply pipe 4 Fig. 1, between the extraction pump 2 of a condenser 1 and the feed pump 7, has stand pipes 6, 10 connected to surge tanks 5, 9. The rise and fall of water in the tank 5, which is connected to the condenser vacuum by a pipe 8 and which is placed at least 34 feet above the tank 9, compensate for normal fluctuations in the supply and demand of the pumps. When the supply of the pump 2 is abnormal, water overflows from the tank 5 into the tank 9, and when the demand of the pump 7 is abnormal, water is withdrawn from the tank through a non-return valve 14 in the stand pipe 10. Make-up water may be supplied to the tank 9 under the control of a, float valve. The tank 9, Fig. 2, is connected to the supply pipe by two stand pipes 10, 11 fitted with a non-return valve 14 and a float controlled valve 15. The tank 5 is connected to the condenser through a U-pipe 8 rising 34 feet above the tank 9. When the supply is excessive, the pressure of water rising in the pipe 8 opens the valve 14 and allows excess water to enter the tank 9. When the water level in the tank 5 falls below a certain limit, a float in the tank opens the valve 15 to allow water to be taken from the tank 9. In place of the U-pipe 8, the tank 5 may be directly connected by a pipe to the condenser, a valve being fitted in the pipe to prevent water from flowing from the tank to the condenser. The top of the tank 5 may be connected directly to the tank 9 by a pipe having a non-return valve allowing excess water to pass from the tank 5 to the tank 9, the stand pipe 11 being dispensed with. The tank 5 may have two stand pines to allow the condensate to pass through the tank.
Patent GB-667875-A (GB)
Title: Improvements in sealing or closure devices for bearing housings
Inventor: MCNICOLL DAVID
IPC: B61F15/22
Filed: 1950-02-02
Abstract: 667,875. Stuffing-box substitutes. BRITISH TIMKEN, Ltd. Feb. 2, 1950. No. 2697/50. Class 122(v). A seal for a bearing housing 1 through which passes a shaft 3 comprises a grooveforming unit floatingly located in a recess 14. The groove-forming unit comprises a plurality of channel shaped rings 8 secured to each other and is secured at each end to L-shaped rings 11. Resilient rings 12 are compressed between the rings 11 and the ends 7, 13 and periphery 6, of the recess 14. Several forms of grooveforming members constructed from rings of various cross-sections are described. Alternatively the groove-forming member may comprise a single channel section spiral ring having its coils secured together. In a modification the grooveforming member is secured in a recess formed in a sleeve which is secured in a bore in the housing.
Patent GB-509936-A (GB)
Title: Improvements in or relating to electric light fittings
IPC: F21V17/00
Filed: 1938-01-28
Abstract: 509,936. Overhead electric lamps; globeholders. MOORE, C. W. C. Jan. 28, 1938, No. 2760. [Classes 75 (ii) and 75 (iv)] In a pendant electric lighting fitting, the globe 5 is secured by tongues 17 formed on the ends of levers 9 which are pivoted, by means of screws 10, on the lower wall 5 of a cylindrical casing 3, the tongues 17 projecting through slots 18 in the wall of the casing 3 and being extended or retracted by rotation of a disc 14 having slots 13 in which engage pins 12 on the levers 9. One of the pins 12A is longer than the others and is screw-threaded to receive a nut 19 which serves for manipulation of the disc 14 and, when screwed down, clamps the levers 9 in globesupporting position. The upper end of the fitting is closed by a glass dome 24 carried by an internally tapered collar 20 which is slidable on the supporting stem 1 and is secured thereto by screwing down a ring 23 to force a split frictiongrip member 21 into the tapered part of the collar. As shown in Fig. 2, in addition to the main lamp-holder 4, further holders 27 may be arranged within the casing 3 to receive auxiliary " night-light" lamps which provide indirect illumination upwardly through the glass dome 24, switching means being provided to permit either the main lamp or the auxiliary lamps to be employed as desired.
Patent GB-671218-A (GB)
Title: Switches of the cross-bar type
IPC: H01H67/26
Filed: 1949-02-01
Abstract: 671,218. Automatic exchange switches. AUTOMATIC ELECTRIC LABORATORIES, Inc. Feb. 1, 1949 [Feb. 19, 1948], No. 2768/49. Class 40 (iv). In a cross-bar switch, a control shaft is rotated to select the appropriate selecting bar and is then moved axially to cause the selecting bar to select one of two rows of contact sets. The control shaft 100 is ratchetdriven by an electromagnet 107 to engage one of a number of spirally-located arms 105 with a forked arm 124 on the appropriate selecting bar, e.g. 120. Subsequent energization of an electromagnet 109 or 110, axially moves the shaft 100 to cause fingers 121 connected by coiled springs to the selecting bar to select one of two adjacent rows of contacts, 144, 143, respectively. A second control shaft 150 is operated in a similar manner to select and lift an operating bar, e.g. 101, to operate the selected contact set.
Patent GB-1514695-A (GB)
Title: Sealing device for the shaft end of a rotating machine
IPC: F16J15/34
Filed: 1977-01-24
Abstract: 1514695 Shaft seals; valves COMMISSARIAT A L'ENERGIE ATOMIQUE 24 Jan 1977 [9 Feb 1976] 02774/77 Headings F2B and F2V Noxious gas contained in a casing 2 surrounding a rotatable shaft 2 is prevented from leaking to atmosphere by a series of three seals 4, 12, 24/28 defining an inner chamber 11 and an outer chamber 23. The central seal 12 is a spring-loaded face seal which is supplied with a barrier gas via a conduit 18 and a throttle 20 at a pressure higher than that of the noxious gas and of the ambient. The difference between the pressures of the barrier gas and the noxious gas are held constant by an external regulator illustrated in Fig. 3. Leakage of barrier gas at the face seal 12 pressurizes both chambers 11, 23. Any noxious gas present in the inner chamber 11 is carried by the barrier gas along a conduit 21 into an external recovery circuit (not shown). A controlled leakage at the outer seal 24, 28, is fed by a leakage of barrier gas at the face seal 12 into the outer chamber 23, and this ensures that no atmosphere gas can enter the outer chamber. Regulator.-The regulator, Fig. 3, maintains constant the pressure difference of P2 above P1, these pressures being present in the lower and upper chambers of Fig. 3, respectively. If P2 is too low, downward movement of the diaphragm 32 opens orifice 36 and allows barrier gas to enter the lower chamber from inlet 35; if P2 is too high, upward movement of the diaphragm 32 lifts spring loaded element 45 to open orifices 44 and to allow leakage from the lower chamber to atmosphere via chamber 42 and conduit 43.
Patent GB-1420104-A (GB)
Title: Internal combustion engines ignition timing systems
IPC: F02P5/10
Filed: 1973-01-19
Abstract: 1420104 Ignition timing ROBERT BOSCH GmbH 19 Jan 1973 [21 Jan 1972] 2812/73 Heading F1B An I.C. engine has an ignition timing system for reducing pollution from the engine during warm-up comprising first and second vacuum-operated adjusting boxes 25, 26 for sensing pressures in the engine induction system, the adjusting boxes being connected by an adjusting rod 24 to an adjusting plate of an ignition distributor 23 of the engine, the box 25 being operable to displace the rod 24 to retard the ignition in a first operating range of the engine in response to pressure reduction in the box 25 and the box 26 being operable to displace the rod 24 in the reverse direction to advance the ignition in response to a pressure reduction in the second adjusting box in a second operating range of the engine, the maximum rod travel in the retarding direction being variable by means of a stop 27 whose position depends on the engine temperature. Switch 30 is closed during heating of the engine exhaust system and opens when. it reaches operating temperature, closure of this switch actuating an electromagnet 29 to withdraw the stop 27 from recess 28 to allow rod 24 greater movement, valve 33 to provide a by-pass from upstream of throttle valve 34 to inlet manifold 32 and valve 31 to connect box 25 to manifold 32 and box 26 to location 36 adjacent the throttle valve. When the exhaust system has reached operating temperature, switch 30 opens allowing stop 27 to engage recess 28, valve 33 to close and valve 31 to connect box 25 to location 37 and box 26 to location 36. The engagement of stop 27 in recess 28 limits ignition retardation to about 5 degrees after TDC, but when the stop is withdrawn during warm-up, maximum retardation can be in the range 10 degrees to 25 degrees after TDC. In Fig. 6 (not shown), the stop 27 and valve 33 are actuated by vacuum boxes (42), (45). In Figs. 10 and 14 (not shown) the vacuum advance/retard unit has three boxes (51), (52), (53), the box (53) acting to control the position of a stop to limit movement of rod 24 in dependence upon the position of switch 30, responsive to exhaust system temperature.
Patent GB-276948-A (GB)
Title: Improvements in die-casting machines
IPC: B22D17/26
Filed: 1927-02-01
Abstract: 276,948. Aluminum Die-Casting Corporation, (Assignees of Bungay, G. W.). Sept. 1, 1926, [Convention date]. Presses, producing part of stroke of hydraulically; press working valves; press ram retracting- device.-In a die-casting machine the dies are first closed and then held firmly together by intensified pressure. The moving die is mounted on a piston rod 14, Fig. 4, having a piston 18 adapted to be reciprocated in a cylinder 15 by operating a four-way valve 35, Fig. 3, which connects a fluid pressure supply 33 and exhaust pipe 36 alternately to opposite ends of the cylinder by pipes 23, 38. The pipe 38 is connected, through a box 20 and valve 40, Fig. 5, normally kept open by a spring 42, to a pipe 21 leading to the right-hand end of the cylinder and to a pipe 27 leading to the high-pressure and of the intensifier 24, Fig. 3, the low-pressure end of which is normally open to exhaust through a pipe 26 and three-way valve 34. When the dies have been closed by operating the valve 35 the valve 34 is operated to close the exhaust and supply pressure fluid to pipes 26, 37. The pipe 37 is connected to a space 44, Fig. 5, above a piston 43, so that this is moved down and a spring 53 closes the valve 40. Fluid from the pipe 26 then moves the hollow ram 25 of the intensifier 24 to the right, high pressure fluid being transmitted by pipes 27, 21 to the cylinder 15. Specification 265,192, [Class 83 (i), Casting &c. metals], is referred to.
Patent GB-750493-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B75/02
Filed: 1952-02-04
Abstract: 750,493. Two-stroke engines; fuel injectors; regulating. NESTOROVIC, M. N. Feb. 4, 1952 [July 16, 1951], No. 2903/52. Classes 7(2), 7(3) and 7(6) The working cylinder (or cylinders) 55, has practically no clearance between the piston and cylinder head at top dead centre, fuel under pressure and high-pressure air from a compresor being fed into the cylinder during a portion of the piston stroke. The fuel is burnt at substantially constant pressure and temperature. In the figures, a four-stroke engine has working cylinders 55, 56 and compressor cylinders 50, 51, which supply a manifold 70, which may have a heating coil 58, supplied with exhaust gases from the engine. Inlet valves 53 are controlled so that, at reduced loads on the engine or compressor, they remain open during the beginning of the compression stroke. This control is effected by axial movement of a camshaft 54 through linkage 69 acted on by a piston 68 under pressure of the air in the manifold 70. The opening of the exhaust valves 57 may also be varied. Sleeve valves may be used. The cylinders 50, 51 are preferably cooled, and may compress the air in series. In addition to a sparking plug 88, in each engine cylinder head, there is a burner 59 supplying combustion gases (see Fig. 2). The burner contains an injection valve 74 provided with helicoidal ribs 75 on an outer conical face. Around the valve 74 is a piston 76 with a conical front portion so that, under the action of a coil spring 77, the piston regulates, and can close, the conical space in the body of the burner 73, except for a small clearance. Air under pressure, from the manifold 70, enters through a passage 78, and fuel through an inlet 81 leading to a duct 82 and a groove 83 behind the cone of a needle valve 79. The position of the latter is controlled through linkage acted upon by the cam shaft 60. The helicoidal grooves cause turbulent entry of the fuel, in a direction opposite to the swirl of the air flow. Fuel leaking past a labyrinth 85 passes through a drain 86. A compressed air bottle 72, charged from the compressor may be used for starting up the engine, by opening a cock 87, which admits compressed air to the burner. Then the cam shaft 60 is moved axially, to bring a cam follower 61 on to the widest section of the cam 60 and actuate the burner piston 76, and needle valve 79 through linkage 61...65. The sparking plug 88 is only used for starting- up purposes, but the burner flame is on continuously, but is varied in intensity. A centrifugal governer 67 is connected, through a bell-crank lever 66, with the linkage 61...65. The Specification states that a hydraulic or electrical control system may replace the mechanical linkage described. Safety valves 71 open under excessive cylinder pressure.
Patent GB-111021-A (GB)
Title: New or Improved Means for Threading Loom Shuttles.
Inventor: LAWLEY DAVID
IPC: D03J3/04
Filed: 1917-03-01
Abstract: 111,021. Lawley, D. March 1, 1917. Weavers' shuttlethreaders. - A suction device for threading loom shuttles comprises a cylinder 6 provided with a spring-controlled piston 4, connected by rods 12, 13 to a striker 14, and having a rubber or like mouthpiece 9, a partition 11 of wiregauze or perforated metal arranged below the aperture of the mouthpiece, and a guide ring &c. 18 adjustably secured to the upper part of the cylinder to facilitate the positioning of the shuttle with its eye over the mouthpiece. The lower part of the cylinder has perforations to allow air to escape, and is secured by a bayonet joint to a base-plate 1 secured to the loom. In a modified form, the device is designed to be strapped to the side of the weaver, and the rods 12, 13 pass as a loop through the bottom of the cylinder. Leather side-guides may be provided to ensure the correct positioning of the shuttle. Specifications 12261/96, 17183/08, 26207/10, 114/11, 22330/11, and 7628/13 are referred to.