baber/WOPTO huggingface dataset:
Patent GB-753767-A (GB)
Title: Improvements in or relating to heat-resistant finish compositions and vehicles therefor
Filed: 1954-05-06
Abstract: A vehicle for pigmented finishing compositions comprises a solution in a volatile inert organic solvent of (1) a rosin ester of a polyhydric alcohol and (2) an acidic organosilanol of molecular weight below 3000, wherein there are at least 1-25 silicon-bonded oxygen atoms (including at least 0.15 silicon-bonded oxygen atoms contained in hydroxyl groups) per silicon atom, wherein at least 70 per cent of the silicon atoms have hydrocarbon substituents of which at least one-third are aryl groups, and wherein the R/Si ratio is from 0.7 to 1.5.  Solvents specified are xylene, benzene, toluene, mineral spirit, heptane, octane and butyl acetate, and are preferably used in amount of 30 to 70 per cent by weight of the composition. The weight ratio of the ester to silanol may be from 4 : 1 to 1 : 4. Flake pigments that may be added are aluminium, bronze, copper, tin, nickel, stainless steel, zinc, silver, heat-treated base metals and graphite.  In examples, a butyl acetate and/or xylene solution of a phenyl-or phenyl-ethyl-siloxanol is mixed with (1) a xylene solution of the reaction product of polymerized rosin and pentaerythritol and further diluted with xylene; (2) a xylene solution of the reaction product of gum rosin and glycerol; and (3) a xylene solution of the reaction product of the condensation product of formalin, phenol and p-tertiary butyl phenol, and gum rosin and glycerol.  The pigmented compositions are useful for painting automobile, tractor and aeroplane engine parts and exhaust systems and chemical process plants.  The organo-silanol may be obtained by hydrolysing under acid conditions one or more silanes having an average per Si atom of at least 1 silicon-bonded hydrocarbon radical, 2 to 3 hydrolysable radicals and not more than 1 silicon-bonded H atom, 1/3 to 2/3 of the hydrocarbon radicals being aryl.  Hydrolysable radicals specified are halogen, amino, acyloxy, aryloxy and alkoxy, and are stated to be progressively more difficult to hydrolyse.  The Sibonded H atom is not hydrolysable under acid conditions.  Long lists of hydrolysable silanes and solvents, used in the hydrolysis, are given.  The rosin esters are made in known manner from rosin, polymerized rosin, hydrogenated rosin or rosin-maleic anhydride addition products and polyhydric alcohols, such as glycerol, trito deca-methylene glycols, ethylene to decylene glycols, dipropylene glycol, dito nona-ethylene glycols, and pentaerythritol.  The rosin ester may be modified by reaction with a condensation product of formaldehyde and a phenol, e.g. phenol, bis-(hydroxyphenyl)-dimethyl methanes and p-tertiary butyl phenol. Preferably the rosin is used in amounts of 2/3 the weight of all the reactants, the alcohol is used in amount to yield a product having an acid number below 40, and the phenol-aldehyde condensate, if any, is used in amount of 10 to 20 per cent by weight of all the reactants.
Patent GB-667929-A (GB)
Title: Improvements relating to doors or covers for pressure vessels
IPC: F16J13/24
Filed: 1950-05-26
Abstract: 667,929. Doors for resisting fluid pressure. PICKARD, H. M. H., and LEEDS & BRADFORD BOILER CO., Ltd. May 26, 1950, No. 13297/50. Class 123 (i). In the door for a kier, autoclave, &c., described in Specification 412,700, wherein a series of pivoted locking latches disposed around the mouth of the vessel are adapted to be swung into and out of operative position by a surrounding rotatable ring 23, the valve 10 controlling the supply of' pressure fluid to the kier is associated with the door so that it cannot be opened until said door is fully locked. The handle 12 of the valve 10 is normally locked by a cowling 13 which is rotatably supported by a bracket 14 on the vessel and is provided with a link 15 connected by a rod 17 to a rod piston 19. The latter is in engagement with a sleeve 20 on the vessel mouth but is prevented from sliding, to permit release of the cowling 13 and opening of the valve, until the ring 23 is in its locking position and an aperture 24 in an obstructing plate 22 on said ring is in alignment therewith. The valve may be three-way so that the vessel is open to atmosphere when not under pressure. A safety relief valve A with operating mechanism B may be fitted on the vessel.
Patent GB-388959-A (GB)
Title: Improvements in or relating to adjustable gauges of the caliper type
Filed: 1932-05-09
Abstract: 388,959. Linear-dimension gauges. COLLETT, A. C., 8/1/3, Loudon Street, Calcutta, India. May 9, 1932, No. 13353. [Class 106 (ii).] Comprises particular constructions of calliper gauges of the type in which the final adjustment of the anvil or anvils before they are locked and sealed is effected by means of a differential screw. The " go and " no go" anvils 2, 3 are similarly secured in the body 5 of the gauge. The anvil 3 is provided with a shank 6 which is secured into a nut 8 in turn screwed into the body of the gauge. In use, the anvil is rapidly adjusted roughly to position by means of a key inserted in the slot 11 and is brought so that a flat 18 lies next an opening 17 into which is now inserted a locking bush 14 having flats adjacent the flats 18. The bush is loose on the stem 15 of a screwed member 13 and the latter member is screwed in sufficiently for the flats on the bush 14 to engage the anvils and prevent rotation thereof, but allow them to slide in their sockets. The component nut is now rotated by means of the slot 12 to make the final adjustment, after which the locking screw 22 is screwed into the shank and gives a last " draw " to the final adjustment. Cavities 25 are provided for sealing means. In a modification, the anvil 4b has a screwed shank 30 over which works a nut 29 which has a second screw engaging a screwed extension 32 of the body. The locking means comprises a ring 33 with internal eccentric surfaces which engage radial pins 35 sliding in the part 32 and jam them against the anvil.
Patent GB-1097747-A (GB)
Title: Method of manufacturing a ceramic article
IPC: C04B37/00
Filed: 1966-03-25
Abstract: 1,097,747. Ceramic seals. COMPAGNIE GENERALE D'ELECTRO - CERAMIQUE. March 25, 1966 [March 26, 1965], No. 13392/66. Heading B3V. [Also in Division H2] A ceramic-to-ceramic joint using enamel as an adhesive, is made by forming cavities 5 in the surfaces 3, 4 to be joined, and coating the surfaces and the walls of the cavities with an enamel before locating them with plugs 6 in the cavities. The assembly is fired to set the joint. Spherical plugs 6 of the same material as the parts to be joined may be used which are wholly or partially prefired to lessen contraction during subsequent firing for securing the joint. The joints may be formed between the cylindrical and tapering sections of an insulator, Fig. 4 (not shown).
Patent GB-333635-A (GB)
Title: Improvements in grinding mills
IPC: B02C19/08
Filed: 1930-02-28
Abstract: 333,635. Stimson, E. F. Feb. 28, 1930. Disc and like mills.-In a. grinding mill having relatively rotated concave and convex grinding surfaces with mutually inclined axes of rotation, both the grinding surfaces are positively driven. As shown in Fig. 1, the concave disc a is rotated by bevel wheels m, l driven by a shaft k, and the convex disc c is rotated at a slower speed through shaft q, worm r, worm wheel s and gear wheels u, v. The spindle f of the convex disc is provided with a universal joint e and the boss g of the disc forms a ball joint eccentric to the centre of a disc i provided with gear teeth x engaged by a pinion w formed on an extension of the shaft t which is driven by the worm and worm wheel. The concave disc a is provided with an annular flange a<1> which is pressed on to the disc c by springs a<2> abutting a flange b<2> on the hollow spindle b of the disc a. Plungers a<3> are moved into contact with the convex disc c by screws to adjust the clearance between the ring a<1> and disc c. The material is fed to the discs through the hollow spindle b and is ground by the rotational and' precessional motion of the disc c. A liquid seal i<1> protects the driving gear of the disc c and an oil seal b<3> prevents overflow of oil on to the discs. In Fig. 3 the shaft d of the convex disc is oscillated in guides by a crank-pin y and slide z.
Patent GB-475061-A (GB)
Title: Improvements in or relating to electric contactors
IPC: H01H50/54
Filed: 1936-05-12
Abstract: 475,061. Electromagnetic switches. GENERAL ELECTRIC CO., Ltd., and ROYLE, W. May 12, 1936, No. 13433. [Class 38 (v)] The fixed and movable contacts 4, 28 of an electromagnetic contactor are both cylindrical in form, the former being held against a recessed portion 3 of a contact-carrying arm 2 carried by the armature 1 and the latter being clamped between the arms of a permanent magnet 29 provided for producing a magnetic blow-out at the contacts. The fixing of the movable contact 4 consists of a screw 5 engaging one of a series of holes 50 in the contact so that when the contacting surface is worn the contact may be removed and replaced in a different position with the screw 5 engaging another of the holes 50, thus exposing a fresh contact surface for engagement with the co-operating contact 28. The latter contact may be provided with a similar adjustable mounting. The contacts are surrounded by an arc shoot 31 mounted between the poles of the magnet 29 and held in position by spring clips 32. The contact arm 2 is normally held against an upturned projection of the armature by a spring 13 which is compressed when the contacts engage or the attraction of the armature 1 to the fixed core. The armature has downturned projections 16 carrying its pivot pin and is retracted by a spring 22. Auxiliary contacts controlled by the armature consists of a transverse insulated pin 19 adapted to bridge relatively-fixed spring blade contacts 21. Current is led to the movable main contact 4 through a double flexible lead 7.
Patent GB-759415-A (GB)
Title: Apparatus for continuously centering a moving strip
Inventor: LORIG EDWIN THEODORE
IPC: C21D9/56
Filed: 1954-05-07
Abstract: 759,415. Transversely guiding webs. UNITED STATES STEEL CORPORATION. May 7, 1954, No. 13476/54. Class 100 (1). A roller assembly for aligning a moving strip with respect to a predetermined path of travel normal to the axes of the rollers, comprises a self-centring roller around which the strip passes, and a second roller adjacent the selfcentring roller on the exit side thereof, the second roller having a portion of maximum diameter adjacent its transverse centre and being substantially parallel to the self-centring roller. As shown, a strip S passes around a selfcentring roller 2 which may be as described in Specification 753,561, i.e. consisting of two roll sections 4, Fig. 2, rotatably mounted on a bent shaft 6 mounted in supports 8. Pins 10 ensure that the sections 4 rotate in unison. The strip S contacts the roller 2 at points 11 and 12 and is wrapped around for an arc of 45 degrees and then passes around a crowned roller 14, Fig. 1, having its axis substantially parallel to that of the roller 2, and/or around a roller 16 having a strip-supporting surface of considerably less width than that of the strip. Specifications 709,908, 717,671 and 735,574 also are referred to.
Patent GB-1204246-A (GB)
Title: Xeroprinting master
IPC: G03G5/02
Filed: 1968-03-20
Abstract: 1,204,246. Electrostatic printing. RANK XEROX Ltd. 20 March, 1968 [27 March, 1967], No. 13515/68. Heading B6C. [Also in Division G2] A master plate, Fig. 3, for electrographic printing comprises an imagewise pattern of insulating elements 18 fused into a lubricous resinous coating 16 on a conducting substrate 14. In the apparatus shown in Fig. 1, the master is in the form of a drum 10 which is rotated past a charger A so that the image 18 becomes charged, and at developing station B, oppositely charged toner particles are applied and they adhere to the image. These toner particles are transferred at C to a paper web 20, and fused thereto by a fuser D, any toner particles remaining on the drum being removed by a brush E. The image 18 on the drum may be produced xerographically, e.g. it may comprise a fused toner image, or by non-xerographic techniques. The resinous coating may be e.g. polyethylene, polyacrylonitrile, polyamide, polyurethane, or polyvinyl chloride, and is of such thickness that the conductor/coating laminate is substantially conductive. The master plate may be made by spraying, coating or painting the thin plastics film on to the drum surface, or on to a flexible conductive sheet which is secured to the drum periphery.
Patent GB-560465-A (GB)
Title: Improvements in or relating to springs
IPC: F16F1/02
Filed: 1942-09-28
Abstract: 560,465. Electrolysis. MALLORY METALLURGICAL PRODUCTS, Ltd., BROOKER, H. R., and HUNT, L. B. Sept. 28, 1942, No. 13566. [Class 41] [Also in Groups II and XXII] Springs especially hair springs for electrical and other instruments are made from a copper base alloy which is not easily solderable provided, preferably by electrolysis, with a thin coating of a precious metal or precious metal alloy. In an example, a base consisting of a copper beryllium alloy containing 2.0- 2.5 per cent of beryllium with or without 0.5 per cent cobalt in the form of a wire is given a thin coating of gold, silver or platinum of approximately 0.0003 inch thickness. The coated wire is then drawn down in successive stages with intermediate annealing, when necessary and then rolled into fine strip which is formed into springs, e.g. by winding on a suitable former and then heating the wound spring to a sufficient temperature to bring about setting.
Patent GB-808174-A (GB)
Title: Process for producing fast yellow dyeings on textile material of aromatic polyesters
IPC: D06P3/52
Filed: 1955-05-10
Abstract: Fast yellow dyeings are obtained on aromatic polyester fibres, yarns, fabrics and ribbons by applying an aqueous solution or suspension of a 4 - hydroxy - 1 : 11 - azobenzene of the formula <FORM:0808174/IV (c)/1> in which X1 represents, as an optional substituent, a chlorine atom or a lower alkyl or alkoxy group, and X2 represents, also as an optional substituent, a chlorine atom, a lower alkyl or alkoxy group, a trifluoromethyl group or an aldehyde group.  Dyeing is preferably effected in a weakly acid bath at a raised temperature.  In examples, the dyebath also contains a methyl taurine-high fatty acid condensation product and the dyeings are after-treated with an alkyl phenol-ethylene oxide reaction product in an aqueous bath at 80 DEG C.  Numerous substituted hydroxy-azobenzenes are specified including 31- (or 21-) chloro-3-methyl-4 - hydroxy - 1 : 11-azobenzene, 31-methoxy-4 - hydroxy - 1 : 11 - azobenzene, 21 - methoxy-3 - chloro - 4 - hydroxy - 1 : 11 - azobenzene, 41 - methyl - 3 - methoxy - 4 - hydroxy - 1 : 11 -azobenzene and 31-trifluoromethyl-4-hydroxy-1 : 11-azobenzene.
Patent GB-1419767-A (GB)
Title: Cobalt oxide catalysts
IPC: B01J23/75
Filed: 1972-03-23
Abstract: 1419767 Hexamethylene diamine IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Feb 1973 [23 March 1972] 13603/72 Heading C2C [Also in Division C1] A process is described for the hydrogenation of adiponitrile to hexamethylene diamine in the presence of ammonia and a catalyst which has been prepared by reducing a sintered cobalt oxide catalyst (see Division C1) with hydrogen.
Patent GB-611678-A (GB)
Title: Improvement in coat construction
IPC: A41D27/10
Filed: 1946-05-06
Abstract: 611,678. Coats. GIUSEFFI, J. May 6, 1946. No. 13625. Convention date, Oct. 8, 1945. [Class 141] In a coat construction allowing unhampered movement of the wearer's arms, particularly in the raised and forwardly extending positions, the underarm section of the sleeve has a substantially ellipticallyshaped extension 23 which, in normal position of the arm, forms a crescent-shaped fold 34 extending above the lower edge portion of the laterally enlarged ovalshaped armhole 10, from the centre of the back of the armhole opening to a relatively lower point in front. The underpiece 16 of the sleeve 14 is cut with the elliptical extension 23 at the armpit and a triangular lateral extension 26 on the longitudinal edge 21, the top piece 15 of the sleeve having a substantially V-shaped extension 29, the dotted lines indicating the outline of a conventional sleeve. The edges 17, 18 and 20, 21 are joined respectively to form the front and back longitudinal seams of 'the sleeve.
Patent GB-378429-A (GB)
Title: Exposure meter
IPC: G01J1/40
Filed: 1931-05-09
Abstract: 378,429. Photographic exposure meters. DREM PRODUCTS CORPORATION, 152, West 42nd Street, New York, U.S.A. May 9, 1931, No. 13801. Convention date, Sept. 24, 1930. [Classes 97 (i) and 98 (i).] An exposure meter of the extinction type comprises a casing having a lens system through which the object to be photographed is sighted, a light-regulating member, and a movable comparison member which is adapted to lie across the axis of the lens system during measurement but is moved away from the axis during sighting. As shown, the casing carries an object lens 5a, Fig. 5, and an eyepiece 3 fitted with a lens 5 and telescopically mounted in a sleeve 2 furnished with a bayonet slot 7 engaged by a pin 6. A slide 8, Figs. 4 and 7, carrying a comparison member C is normally pressed upwardly by a spring B to bring the member C into the axis of the lens system ; but may be depressed by an external knob 18 to provide a clear field for sighting. The light - regulating member comprises a revoluble plate 19 carrying a slotted frame 20 furnished with a stepped wedge or wedge slot and is rotated by a stud S, Fig. 9, engaging teeth 23. A shaft 24, Fig. 7, carrying the stud S, is fitted with an external head. The plate 19 is connected by a screw 26 to an external head 27 fitted with an arm 28 whereby the member 19 may be quickly returned to initial position. A scale plate carried by the head 27 co-operates with a fixed scale ring. In use, the eyepiece 3 is turned until the pin 6 engages the straight portion of the slot 7 and the device is sighted upon the object, the slide 8 being depressed by the knob 18 ; the slide is then released and the plate 19 is slowly turned by the stud S until the comparison field C becomes invisible.
Patent GB-312785-A (GB)
Title: Improvements in kerb overflows for road drainage
IPC: E03F5/046
Filed: 1928-05-10
Abstract: 312,785. Leather, C. L. May 10, 1928. Road, service boxes; gratings; draining- channels; kerbs.-A kerb overflow for road drainage comprises a bottomless metal box with an aperture in the vertical side nearest the roadway and a curved grid or grating presenting to the entering water a gradually increasing angle with the horizontal. The box is placed in the kerb or footway and communicates with a gully. It is provided with flanged sides and a movable solid top 4 secured to ledges 5 by turnbuckles. The aperture is formed by removing the front side of the box. The grating has bars running from side to side, or front to back, and rests on ledges 8, being hinged or movable. Its front edge is below the level of the roadway and its rear edge considerably above it. A front plate 9 level with the roadway is provided with curved grooves 9<a> to direct the water on to the grating. A guard-plate may be provided to hold up the road.
Patent GB-794574-A (GB)
Title: Control of a physical quantity by means of a thyratron
Inventor: SPEARING MICHAEL HENRY
IPC: G05B11/01
Filed: 1955-05-13
Abstract: 794,574. Rectifying; automatic temperature control systems. DISTILLERS CO., Ltd. May 1, 1956 [May 13, 1955], No. 13835/55. Classes 38 (2) and 38 (4). The value of D.C. supplied to a load 21 from an A.C. source 11 through a thyratron 13 is controlled by the variation of the instant of firing of the thyratron whose grid is impulsed from a multivibrator 18 comprising valves V1, V2, the mark to space ratio of the anode circuit current of valve V2 which is connected to the thyratron grid being varied by an error signal applied to the grid of valve V2 at 19. To keep the multivibrator operating at a frequency synchronized with or locked to a multiple or submultiple of the A.C. frequency, the grid of valve V1 is supplied with pulses from differentiating network 16, 17 which receives a square wave from valve 15, the grid of which is supplied through blocking condenser 14 from phaseshifting network 12 with a voltage leading the supply. To have stable control of the thyratron a suitable mark to space ratio is obtained with a phase advance of between 45 and 135 degrees, preferably 90 degrees. The mode of operation is described with reference to a waveform diagram, Fig. 3 (not shown). The load 21 may be an electric oven, the electrical input being maintained proportional to the heat loss of the oven or such as will keep the oven temperature constant, the input signal at 19 being derived from a device such as a resistance thermometer with an output voltage proportional to the oven temperature.
Patent GB-444992-A (GB)
Title: Improvements in propelling pencils
IPC: B43K21/20
Filed: 1935-05-10
Abstract: 444,992. Propelling-pencils. LEISTENSCHNEIDER, A., 5, Lutzowstrasse, Diisseldorf, Germany. May 10, 1935, No. 13847. [Class 146 (iii)] One or more of the tubular parts forming the lead passage of a propelling pencil is or are formed with one or more incisions extending helically or volutely in relation to the longitudinal axis of the part containing the incision. The tip and the lead clamping parts within the pencil may be formed with incisions, these being preferably cut by means of a saw and subsequently closed up as much as possible.' The lead passage may be narrower than the lead so that the latter is resiliently gripped, and the strips of material between successive incisions are preferably of different width, narrow strips alternating with wide strips. When applied to a pencil of the type described in Specification 406,451, the tip and the lead guiding tube 10 are both formed with incisions, while the leadgripping parts 11<a>, 11<b> are formed of a number of independent helically wound strips held in place by the adjacent parts of the pencil. The lead-gripping parts may project out of the tip, in which case the incisions on the latter are omitted.
Patent GB-175234-A (GB)
Title: Improvements in means for tilting pouring ladles and the like
IPC: B22D41/06
Filed: 1921-05-18
Abstract: 175,234. Collin, A., and Jeunehomme, D. Feb. 8, 1921, [Convention date]. Foundry ladles.-In means for tilting pouring ladles and the like for handling molten materials, a trunnion 1 on the ladle is provided with a worm wheel 2 surrounded by a casing 14, the shaft of the worm 3 being operated by bevel gearing 5. The trunnion 1 rests in series of rollers 10, 18 mounted in raceways 11, 19, and lubrication is effected by means of lubricant contained in the casing 14 and carried up by the arms 23 of the wheel 2, passages 16 being provided in the hub.