baber/WOPTO huggingface dataset:
Patent GB-206993-A (GB)
Title: An improved safety scotach or backward brake device for road vehicles
IPC: B60T1/14
Filed: 1922-10-16
Abstract: 206,993. Griffiths, E., nnd Linton, J. Oct. 16, 1922. Scotch-blocks; skid. - Relates to devices of the type wherein a scotch or shoe is normally suspended in an inoperative position behind the rear wheel of the vehicle, and clear of the road surface, and is adapted to be released for engagement beneath the wheel tread by mechanism operated from the driver's footboard; and consists in a direct lever suspension of the scotch from a rocking shaft supported by clip members on the rear axle casing. Two scotches e one for each wheel are supported by arms f from a shaft c journaled in arms b<1> secured to the axle casing by clips b. An arm i fast on the shaft c is connected by a rod j to one arm k of a bell-crank lever, pivoted at l to a plate m, the other arm k<1> being pivotally connected to a pedal n<1> passing through a slot in the plate m. The pedal is notched to engage under a lip at one edge of the slot.
Patent GB-1118041-A (GB)
Title: Improvements in and relating to thermal power plants
Inventor: CRAMPTON FELIX JEREMY PHILIP
IPC: F17C9/04
Filed: 1964-07-07
Abstract: 1,118,041. MHD power plant. CONCH INTERNATIONAL METHANE Ltd. 22 June, 1965 [7 July, 1964], No. 28009/64. Heading H2A. A thermal power plant includes a magnetohydrodynamio generator whose exhaust gases supply heat to a second thermal power plant, wherein the magnet coils of the generator are cooled, directly or through a secondary fluid, by liquefied natural gas which forms the fuel supply to the generator combustion chamber. The natural gas may also be used as fuel for the boiler of the second thermal power plant. A cryogenic secondary fluid may be used and the magnet coil may be cooled to superconductive temperatures. In the systems described, air is initially freeze dried and cooled by the liquified natural gas before passing to a separator from where the separated oxygen passes through a heat exchanger in the separator to the combustion chamber of the generator. The separated nitrogen is compressed and cooled by the natural gas and liquefied, the liquid being passed through the coils of the generator and the vapour produced returned to the separator to complete the closed cycle. The liquid natural gas is vaporized in the heat exchangers and passed as the fuel supply to the generator combustion chamber. In a modification the nitrogen vapour from the liquefier is used in a pro-cooler for air which has both been freeze dried and had the carbon dioxide removed, and the oxygen from the separator passes through a separate heat exchanger to cool the incoming air to the separator. In both embodiments the oxygen from the separator is used to freeze dry the incoming air as described in Specification 1,118,042. Reference has been directed by the Comptroller to Specification, 974,951.
Patent GB-282015-A (GB)
Title: Improved method of raising the yield point of steel alloys
IPC: C21D7/12
Filed: 1927-10-21
Abstract: 282,015. Krupp Akt.-Ges., F. Dec. 7, 1926, [Convention date]. Drawings to Specification. Physical or molecular structure, altering by mechanical treatment.-Steel alloys, e.g. nickelmanganese steel, and particularly austenitic steel alloys are stated to have their yield point raised, by rotating the article, such as a turbo rotor formed from the alloy at such a speed that the stress in the material exceeds the yield point of the unstrained metal. Weights may be placed in the hollow body before rotating it, to increase the stress. Test bars are cut from the body after rotation in order that the yield point of the material may be ascertained. The work is finally machined to size. Specification 154,555 is referred to.
Patent GB-279257-A (GB)
Title: Improvements in and relating to covers for barrels and the like
IPC: B67D7/84
Filed: 1926-11-08
Abstract: 279,257. Safety Storage Systems, Ltd., and Coombs, F. Nov. 8, 1926. Shelters or cabinets for oil drums, casks, and like receptacles.-A cylindrical cover for barrels of the type fitted with delivery pumps is composed of superposed sections 1, 2 secured together by horizontal U-pieces 7 on the lower section 1 which engage tongues 8, Fig. 3, on the upper section 2. The upper section has a cover 3 and is formed, for access to the pump fitted to the top of the barrel, with a door 4 of the circumferentially sliding type adapted to be fastened by a padlock.
Patent GB-360572-A (GB)
IPC: C04B35/01
Filed: 1930-09-19
Abstract: Refractory substances are made by mixing chromium ore with a magnesium compound, e.g. magnesite, which has been melted or sintered at a temperature of about 1500 DEG  C. or more, and firing the mixture.  The chromium ore employed preferably contains more than 30 per cent of chromium oxide and the finished product between 10 and 80 per cent.  Organic binders and other ingredients may be added.
Patent GB-225357-A (GB)
Title: Improvements in door fastenings
IPC: E05C7/06
Filed: 1923-11-08
Abstract: 225,357. Oxley, M. K. Rice-. Nov. 8, 1923. Double-door fastenings. - Double-door fastenings, comprising an anti-friction member associated with one door and a lever operated by an antifriction device associated with the other door so that closing the second door locks the first door, are adapted to operate without the aid of springs. A plate 1 is secured to the lintel and has two sockets 2, 2a each containing a ball 4, 4<a>. A lever 5 pivoted to the post 7 at 6 rests on the balls, and works in slots 8, 8<a> in the sockets. When the first door 9 is closed, the ball 4a drops into a recess 11 in a plate 10 on the top of the door. When the other door 13 is closed, its bevelled plate 14 lifts the ball 4 and tilts the lever 5 so that it holds the ball 4a securely in the recess 11, preventing release of the door 9.
Patent GB-459391-A (GB)
Title: Improvements in electrical resistances
IPC: H01C1/084
Filed: 1935-10-12
Abstract: 459,391. Sets of resistances. BEETLESTONE, A., 74, Greenway Road, Timperley, Cheshire, WATERTON, F., 3, Grosvenor Square, Ashton-on-Mersey, and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd., 1, Kingsway, London. Oct. 12, 1935, No. 28242. [Class 37] A high resistance unit comprises a stack of pancake resistance coils 1, each coil consisting of one or a few layers of wire wound around a fibrous core, the coils having central apertures and being mounted in a closed container 16 with baffles arranged therein so that a cooling liquid can circulate from the circumference of the coils, radially inwards over their surfaces and upwards through the central apertures. The stack is secured by bolted end-plates 5, 10, and. terminals 12 engaging in bushes 13 in end caps 14, 15. The coil formers 2 may be slightly conical, Fig. 3, to form the downward channel for the cooling fluid, or they may be flat and a separate circumferential baffleplate provided. The coils are wound alternately over and under spokes formed in the formers which are also provided with holes 7 for passage of the securing bolts 6. The supporting parts and casing are all of insulating material and guard rings 17, 18 are provided.
Patent GB-483482-A (GB)
Title: Improvements in or relating to filters
IPC: B01D29/46
Filed: 1936-10-19
Abstract: 483,482. Filters. KNECHT, A. Oct. 19, 1936, No. 28395. Convention date, Oct. 19, 1935. [Class 46] A filter comprises an edge filter element b having cleaning brushes c surrounding a second element d consisting of a porous material such as felt. The liquid to be filtered enters at a and passes through the filters b, d in succession, the filtered liquid being discharged through the pipe f. The filter b is cleaned by rotating a handle i or by the automatic operation of a ratchet k. Specification 344,768 is referred to. According to the Specification as open to inspection under Sect. 91 both filters may be of the edge type the second filter having narrower filtering apertures than the first. The two filters may be arranged, as shown in Fig. 3 (Cancelled), in separate casings connected by a conduit s leading from the outlet of the first filter and discharging into the inlet of the second filter. This subject-matter does not appear in the Specification as accepted.
Patent GB-1148981-A (GB)
Title: Improvements in or relating to gas and/or vapour discharge vessels
Inventor: DREW WILLIAM JOHN
IPC: H01J61/10
Filed: 1966-06-24
Abstract: 1,148,981. Discharge tubes. GREENHAM TOOL CO. Ltd. 16 June, 1967 [24 June, 1966; 31 Oct., 1966], Nos. 28395/66 and 48790/66. Heading H1D. A discharge vessel, e.g. a lamp, of heatresistant glass and having a filling at not more than a quarter of atmospheric pressure, includes a tightly fitting quantity of heat-resistant glass, in the form of randomly broken particles, arranged to ensure that, in operation, the discharge continually changes its path through and around the quantity of glass, whereby the lamp appears to sparkle. The envelope may be of borosilicate glass, clear or coloured, having a central portion of its length, defined by a pair of constrictions in the envelope, packed with particles formed of broken tubing of similar glass, and filled with 10 torr of neon, or with a neon/mercury or argon/mercury mixture. The lamp is manufactured by providing one end of the envelope with its electrode and constriction; packing the central portion with the broken glass tubing and supporting the lamp in an upright position; heating the assembly to remove moisture by the use of an oven or a flame, or by supporting an electrode just above the level of the packed particles and passing a current; and finally providing the upper end of the lamp with its constriction and electrode. The lamp is then evacuated in three stages, current being passed through the lamp between each stage to heat and clean the lamp, before being filled, sealed, and aged. When mercury is a constituent of the filling, it is introduced, after ageing by heating pockets containing mercury sealed to the supply and exhaust tubes, which are subsequently sealed off. The lamp containing a mercury/neon filling appears blue at its end sections and red in its central congested portion. Dimensions and wall thickness of the glass tubing are given.
Patent GB-187964-A (GB)
Title: Improvements relating to the dyeing of cellulose acetates
IPC: D06P3/44
Filed: 1922-10-19
Abstract: In the production of azo dyes on the fibre or material of cellulose acetate silk, fabrics, &c., soluble salts together with protective colloids are added to the baths containing the parent amines or the developers or to both.  Suitable salts are the chlorides of sodium, potassium, barium, magnesium, zinc, or tin; suitable protective colloids are gelatine, boiled-off liquor, soaps, albumen, or tannates.  In an example, acetate silk is first treated in a bath containing dianisidine hydrochloride, magnesium chloride, and sodium bicarbonate, then passed to a diazotizing bath, followed by a developing bath containing a -naphthylamine hydrochloride, sodium bicarbonate, and magnesium chloride, after which it passes to a second diazotizing bath and a second developing bath containing 1 : 5-amino-naphthol, boiled-off liquor, and magnesium chloride; a black shade is obtained. Specifications 24284/07 and 176,535 are referred to.  The Specification, as open to inspection under Sect. 91 (3) (a), refers also to sulphates of sodium, potassium, or magnesium as suitable salts, and to the use of salts with or without protective colloids; this subject-matter does not appear in the Specification as accepted.
Patent GB-958810-A (GB)
Title: Improvements in or relating to valves for controlling fluid flow
IPC: G21D1/02
Filed: 1961-08-04
Abstract: 958,810. Valves. NORDISKA ARMATURFABRIKERNA A.B. Aug. 4, 1961 [Aug. 5, 1960], No. 28460/61. Heading F2V. A valve comprises a housing 1 having an inlet 5, an outlet 7 and an annular valve seat 18. A bowl-shaped sealing diaphragm 17, having a cylindrical skirt connected to a slightly bulging mid-section by a curved portion, carries a valve closure 16 actuated through a spindle 11. The diaphragm 17 is welded around its entire circumference at 17a to the housing to prevent leakage to the spindle 11. The diaphragm may have an aperture to receive the closure which is welded to the diaphragm or the closure may be directly spot welded to an unapertured diaphragm. When the valve is closed the diaphragm assumes the form shown in dotted lines, the mid-portion being bent inwards and the connecting curved section outwards. A stuffing box, comprising a bush 12, gasket 13 and gland 14 may be provided for the spindle 11. The inlet 5 terminates in a widened portion which reduces the lift height for full flow.
Patent GB-893831-A (GB)
Title: Improvements in or relating to a control mechanism for a liquid dispenser
IPC: B67D7/08
Filed: 1958-09-05
Abstract: 893,831. Valves. TOKHEIM CORPORATION. Sept. 5, 1958 [Sept. 6, 1957], No. 28594/58. Class 135. [Also in Group XVIII] The flow valve 5, Fig. 12, of a petrol pump, comprises an inlet 329 leading from the pump to a control valve 337, operated by a piston 377, in series with a check valve 359. When the pilot valve 37, Fig. 9, which controls a connection 41 from the chamber 349 to the valve outlet 339, is closed, the pressure on both sides of piston 377 is equalized through bleed orifice 351 and valve 337 is held closed. On opening of the pilot valve 37 by operation of the pump control handle, which actuates lever 323, the valve system is set for dispensing when the valve in the dispensing nozzle is opened, which produces a drop in pressure in space 349 causing piston 377 to open the main valve 337. Reclosing of the pilot valve closes the main valve 357, cutting off the flow to the nozzle. The pilot valve 37, Fig. 9, comprises a valve head 249 with a stem 259 actuated by a separate plunger 281 sealed by a cup-shaped diaphragm 267. When plunger 281 is moved downwards to open the valve 249, it is held down by a ball-type clutch 303. Return of the pump handle to shut down the pump rotates shaft 53 and a cam thereon actuates a lever 317 to release the clutch 303 and permit the pilot valve 249 to close.
Patent GB-712201-A (GB)
Title: Improvements in sheet material for roofs, aeroplanes and other structures
IPC: B64C3/00
Filed: 1951-12-07
Abstract: 712,201. Metal sheeting. GESSNER, M. Dec. 7, 1951 [Dec. 13, 1950], No. 28754/51. Classes 20 (2) and 20 (4). [Also in Groups XXIII and XXXIII] Metal sheet is stiffened by ribs 2, Fig. 2, at right angles, one end of each rib abutting an intermediate part of another rib the ribs being of V-shaped cross-section. In Fig. 5 the sheet is curved in one direction and the ribs 2b extending along the curve are shaped to conform thereto.
Patent GB-620608-A (GB)
Title: Improvements in or relating to purified weakly acidic organic chemicals and method of purifying same
IPC: C07D239/56
Filed: 1946-09-26
Abstract: Weakly acidic organic chemical having pKa values (logarithm of the reciprocal of their dissociation constants) of 2-12, and capable of forming water-soluble alkaline-earth metal salts, are treated to remove coloured impurities by dissolving in aqueous alkaline solution, adding a compound capable of furnishing free alkaline-earth metal ions, adding a water-soluble alkali dithionite, and heating and agitating the mixture, whereby the impurities are reduced and an alkaline-earth metal sulphite is precipitated.  Examples are given of the treatment of: (1) 2-sulphanilamido-4-methylpyridimine; (2) 2-(N4-acetylsulphanilamido-4-methylpyrimidine; (3) and (4) 2-sulphanilamidopyrimidine; (5) 2-thio-4-hydroxypyrimidine; (6) 2-sulphanilamidopyrazine; (7) 2-sulphanilamidothiazole; (8) 2-sulphanilamido-4,6-dimethylpyrimidine; and (9) 5-chloro-2-metanilamidopyrimidine.  Other compounds which may be treated are o- and p-aminophenols, sulphanilic acid, metanilic acid, orthanilic acid, tyrosine, various aminonaphthalene sulphonic acids, p-aminobenzoic acid, N1-2-hydroxyethylsulphanilamide, sulphapyridine, N1 - acetylsulphanilamide, 2 - sulphanilamido - 1, 3, 4-thiadiazole, disulphanilamide, and sulphanilamide.
Patent GB-908066-A (GB)
Title: A new or improved device for the prevention of lateral movement of ladders on gutterways, ledges, pipes, copings or the like
IPC: E06C7/48
Filed: 1959-08-24
Abstract: 908,066. Ladders. MATTHEWS, C. H. Aug. 24, 1960 [Aug. 24, 1959], No. 28803/59. Class 20 (2). A ladder is engaged with a gutter &c. 7 by means of a projection 6 on a collar 1 which surrounds the ladder stile 2, a gap being provided in the strap for the passage of the rungs 4. The projections of the collars on the two stiles may be connected by a cross-bar. A flat spring secured by a rivet 5 provides a frictional grip on the stile.
Patent GB-660540-A (GB)
Title: Improvements in apparatus for carrying out exothermic catalytic gas reactions
IPC: B01J8/04
Filed: 1949-11-10
Abstract: A reactor for carrying out exothermic catalytic gaseous reactions of the type wherein heat exchangers for the reactant and reaction product gases are interposed between a plurality of catalyst chambers is characterized in that tubular heat exchangers 4, 5 are positioned centrally within annular catalyst chambers 1, 2, 3 and openings are provided in the heat exchanger jackets through which reactant gases pass into the catalyst chambers or reaction product gases flow back into the heat exchangers either directly or through surrounding intermediate spaces.  Reactant gases enter at 6, pass sequentially <PICT:0660540/III/1> through heat exchangers 5, 4, then through openings in chamber 8 into catalyst chamber 1.  Partly reacted gases pass through intermediate space 9 into the jacket of heat exchanger 4, then through intermediate space 10 into catalyst chamber 2 and similarly through the jacket of heat exchanger 5, intermediate space 12 and catalyst chamber 3, reaction products being withdrawn at 14.
Patent GB-1388403-A (GB)
Title: Hydraulic valves
IPC: F16K3/22
Filed: 1971-06-19
Abstract: 1388403 Valves GLENFIELD & KENNEDY Ltd 7 June 1972 [19 June 1971] 28850/71 Heading F2V A valve has a vertical casing 1 solely supported by an apertured pedestal 6 and a sleeve 5 which is movable relative to the ports 7 in the pedestal. The sleeve may be rotated or longitudinally moved and may be apertured similarly to the pedestal. Buttresses 8 on the pedestal receive holding down bolts 9 which pass through apertures in the end flange 10 of the casing.
Patent GB-899264-A (GB)
Title: Keyboard perforator and counter apparatus
IPC: B41B25/00
Filed: 1958-09-09
Abstract: 899,264. Strip perforating machines. FAIRCHILD CAMERA & INSTRUMENT CORPORATlON. Sept. 9, 1958 [Dec. 27, 1957], No. 28852/58. Class 100(3) A keyboard perforator and counter apparatus, having an indicating device, such as described in U.S.A. Specification Re22,350 has a selector pushbar arrangement comprising four elements one of which is a spring which biases the elements to a predetermined position. A key action push bar mechanism 41 is interposed between the key lever 23 and pairs of count code blades 38. The mechanisms 41 are mounted by rollers on a track so as to be movable during case shift to engage either of the blades 38 in each pair. Each push bar 42 is pivoted on the bar 47 and is connected by a depressing rod 43 with a pivot link 44 pivoted on a plate 46 while a spring 45 biases the four elements so that their point of equilibrium is above the line joining the pivots 46, 47 which are fixed in the apparatus. The push bar 42 thus normally engages an up stop 71 or the link 44 engages an up stop 50. Depression of a key causes its lever 23 to engage and depress the rod 43 so that the push rod 42 is moved opposite a code blade 38 and into engagement with a universal operating blade 58 which is caused by a square shaft 53 connected to a main cam shaft to move the push bar to the left and back to actuate the blade 38 when, at the end of the key depression, a clutch is tripped causing the main cam-shaft to rotate. Specification 899,265 also is referred to.
Patent GB-963843-A (GB)
Title: Improvements relating to zone melting by electron beam furnaces
Inventor: EATON NORMAN FRANK
IPC: C30B13/22
Filed: 1960-08-22
Abstract: 963,843. Zone melting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 17, 1961 [Aug. 22, 1960], No. 28990/60. Heading B1S. Material is subjected to mechanical vibration while being zone-melted by electron bombardment. The vibration is preferably of ultrasonic frequency produced by an electro-mechanical transducer such as a piezo-electric crystal or a magneto-strictive device. As shown in Fig. 1, electron beams from two electron guns 8 and 9 impinge on a slab 3 vibrated by a transducer (not shown), movement of the molten zone being effected by deflection of the electron beams. As shown in Fig. 3, electron beams from three electron guns 21 impinge on a rod 17 vibrated by a transducer 25; movement of the molten zone being effected by deflection of the electron beams or vertical movement of the rod. Specifications 872,579 and 919,298 are referred to.
Patent GB-435294-A (GB)
Title: Improvements in and relating to kinematographic cameras and projectors and camera-projectors employing moving, perforated film
IPC: G03B19/18
Filed: 1934-10-10
Abstract: 435,294. Kinematograph apparatus. MAYTUM, J. A., SMITH, L., and HANSEL, C. W., 18, Gray's Inn Road, London. Oct. 10, 1934, No. 29064. [Class 97 (i)] The intermittent-feed and the film take-up are driven by means of only two toothed wheels and without the use of a belt and pulleys ; the first wheel is directly driven by a handle or motor and may frictionally drive a take-up core on its spindle, and the second wheel directly drives the intermittent-feed device and may drive a film-coiling device. Fig. 1 shows a wheel 8 carrying a handle 10 and meshing with a wheel 9 on a spindle carrying a crank-disc 13 ; the crank-pin operates a claw arm 12 formed with a slot 17 engaging the spindle 18 of the wheel 8 and with a tail piece 21 to assist in coiling the film on a core 20 frictionally mounted on the spindle 18. In a modification, Fig. 2, the core 20 and its spindle are omitted, and the claw arm 12 is formed with a leg 22 sliding in a slot in the upper edge of a web 23, and with a " patting plate " 25 which alternately pats the top and side of the take-up coil formed beneath it and renders the coil compact.
Patent GB-785916-A (GB)
Title: Improvements in or relating to chucks
Inventor: DODGSON FRANK
IPC: B23B31/18
Filed: 1952-11-18
Abstract: 785,916. Chucks; lathe and like centres. CHURCHILL-REDMAN, Ltd. Nov. 18, 1953 [Nov. 18, 1952], No. 29066/52. Class 83 (3). A chuck comprises jaws 5, Figs. 1 and 2, pivoted in radial slots 3 in body 1 by pins 6 and urged by springs 21 out of gripping engagement with a work-piece. The jaws have gripping parts 7 mounted on blocks 27 adjustable radially in grooves 28, and are closed by axial movement of an operating-member 13. This member is carried by a rod 17 movable by hydraulic or pneumatic mechanism, there being a joint (not shown), which permits lateral movement of member 13 to allow the jaws to grip eccentric or asymmetric work. The work is centred by a spring-loaded centre 35 and abuts a plate 41. The jaws may be balanced about their pivots or be heavier on the rearward side so that centrifugal force has no effect, or urges the jaws to engage the work, respectively.
Patent GB-930276-A (GB)
Title: Improvements relating to holders for thermionic valves
Inventor: CULLENDER HENRY FRANCIS
IPC: H01R33/76
Filed: 1960-08-23
Abstract: 930,276. Holders for thermionic valves. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 15, 1961 [Aug. 23, 1960], No. 29129/60. Class 38 (1). A valve holder has an insulating body 1 carrying an earthing terminal 6 to which is connected a metal strip 7 projecting beyond the periphery of the body so as to form a key for locating the holder in a support. As shown, the strip 7 encircles the terminal 6, and at its outer end is bent over to form an arm 9, which is divided at the end into an outwardly extending tag 11, which is used to make connection with an external circuit on the supporting member, and two inwardly extending ears 12, 13 which engage with an indentation 14 for the purpose of locating the strip rigidly relative to the holder.