baber/WOPTO huggingface dataset:
Patent GB-243338-A (GB)
Title: Improvements in and relating to the production of photographic gelatine reliefs
IPC: G03C5/315
Filed: 1925-11-10
Abstract: 243,338. Gorsky, S. de Procoudine-, and Pozniakow, N. Nov. 19, 1924, [Convention date]. Plates, films, and papers; emulsions and sensitive coatings. preparing; developing and aftertreatment; relief photographs; photo-mechanical printing-surfaces.-A process of producing photographic gelatin reliefs, of the kind which consists in forming an emulsion of a silver halide in gelatin, reducing the halide completely or partially by exposure to light and development, thereby hardening the gelatin at the parts where the halide is reduced, and washing to remove the unhardened gelatin is characterized by the use of an emulsion layer produced from a mixture of two separately prepared solutions, one of silver nitrate containing no colloid, and the other of an alkali halide containing a small quantity of gelatin, the mixture being purified as by centri. fugal separation, and then mixed with the main body of gelatin. The reliefs produced may be transferred to any backing, and in particular to metal plates or rollers for producing printing- surfaces or advertisement plates. Or the silver may be eliminated from the photographic relief by bleaching and fixing, and the clear relief coloured. The emulsion may be prepared by adding little by little to a solution of potassium bromide and gelatin in water and alcohol an ammoniacal solution of silver nitrate in water at 30 C., heating the mixture at 38 C., cooling and placing in a centrifugal apparatus to separate out the emulsioned silver bromide. This is mixed with a larger quantity of gelatin, heated to 45 C., filtered and cast into the form in which it is to be used. For example, it may be coated on paper, exposed under a negative, developed with pyrogallol or pyrocatechin, and applied face downwards on a glass, metal, or like surface for developing in hot water after the manner of producing carbon reliefs. The relief is finally fixed, or it may be fixed before the hot water treatment.
Patent GB-279858-A (GB)
Title: Improvements in dust-suction apparatus for cleaning by vacuum and driven electrically
IPC: A47L5/36
Filed: 1927-10-25
Abstract: 279,858. Bimm, G. R., Schott, G. R., and Curutchet, G. Oct.. 28, 1926, [Convention date]. Casings, foundations, and supports. - In a vacuum-cleaner, the casing of the motor 2 is in two interfitting parts 4, 5 gripping between them a ring support 9 resiliently secured by bolts 19 to the upper part 22 of the base. Elastic rings 15, 16 held in position by the upturned and downturned serrated edges of metallic rings form the elastic coupling for the motor. In a modification, the crown of the motor may be secured by a stirrup resiliently secured to the sides of the casing or with a spring at its centre to bear down on the crown. The ring support 9 is upturned at its outer edge to form a support for the cylindrical wall 26 of the cleaner. The part 22 is secured to the base 23 by lugs 25 which hold the two pieces apart forming a ring exit for the air discharge, the part 22 being bent at 12 as shown to assist the air discharge. In a modification the part 12 may be separate from the part 22, but bolted to it with packing in between. Specification 245,662 is referred to.
Patent GB-737634-A (GB)
Title: Conveyors
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G17/02
Filed: 1952-10-31
Abstract: 737,634. Endless belt conveyers. MINING ENGINEERING CO., Ltd. Oct. 14, 1953 [Oct. 31, 1952], No. 28398/53. Divided out of 737,583. Drawings to Specification. Class 78 (1). An endless conveyer comprises a flexible continuous load-carrying member and parallel tension members formed by cable link chains which are supported at intervals by rollers which run on parallel tracks and between which extend cross members by which the load carrying member is supported and entrained. The embodiment disclosed is substantially identical with that disclosed in Figs. 1A, 1B, 3 and 8 of Specification 737,583.
Patent GB-445288-A (GB)
Title: Improvements in or relating to the dehalogenation of organic halogen derivatives
IPC: C07C1/26
Filed: 1934-10-04
Abstract: Halogenated hydrocarbons are dehalogenated (i.e. halogen is replaced by hydrogen) by treating them in the vapour phase with hydrogen in the presence of a sulphide of a metal of the sixth periodic group or a mixture of such sulphides.  The reaction is effected at a raised temperature, preferably 200--600 DEG  C., and at atmospheric or raised pressure.  Mono- or poly-halogenated aliphatic or aromatic hydrocarbons may be treated.  A large excess of hydrogen is preferably used.  Sulphides of chromium, molybdenum, tungsten and uranium or mixtures thereof are the preferred catalysts; they may be prepared by treating the corresponding oxides with hydrogen sulphide at a raised temperature, or by treating solutions of the hydrated oxides with hydrogen sulphide, or by passing hydrogen sulphide into solutions of chromates, tungstates, molybdates or uranates and acidifying the products.  The process may be applied in the purification of hydrocarbons containing halogenated hydrocarbons as impurities. In the examples: (1) chlorobenzene and hydrogen are passed over a catalyst prepared by treating an aqueous or aqueous ammoniacal solution of ammonium molybdate with hydrogen sulphide and treating the product with sulphuric acid; benzene is obtained; (2) chlorobenzene and hydrogen are passed over a catalyst prepared by treating a solution of ammonium molybdate and ammonium bichromate with hydrogen sulphide, and treating the product with nitric acid; benzene is again obtained; (3) chlorotoluene and hydrogen are passed over a catalyst prepared as in example 1, toluene being obtained; (4) benzene recovered from a chlorination process is purified by passing it with hydrogen over the catalyst of example 2; (5) propyl chloride and hydrogen are passed over the catalyst of example 2, propane being obtained; (6) mixed propyl and butyl bromides are passed with hydrogen over the catalyst of example 2, a mixture of propane and butane being obtained.  Reference is made to the deiodination of iodinated hydrocarbons, and to the dehalogenation of aromatic hydrocarbons halogenated in a side chain.ALSO:Sulphides of chromium, molybdenum, tungsten and uranium or mixtures thereof are prepared by treating the corresponding oxides with hydrogen sulphide at a raised temperature, or by treating solutions of the hydrated oxides with hydrogen sulphide, or by passing hydrogen sulphide into solutions of chromates, tungstates, molybdates or uranates and acidifying the products. In the examples: (1) an aqueous or aqueous ammoniacal solution of ammonium molybdate is treated with hydrogen sulphide and the product is treated with sulphuric acid; (2) a solution of ammonium molybdate and ammonium bichromate is treated with hydrogen sulphide, and the product is treated with nitric acid.
Patent GB-619543-A (GB)
Title: Improvements in or relating to casting steel in ingot moulds
IPC: B22D27/08
Filed: 1946-09-23
Abstract: 619,543. Mould shaking machines. REBUT, P. C. M. Sept. 23, 1946, No. 28464. Convention date, April 23, 1941. [Class 83 (i)] In a method of casting steel ingots wherein the mould is subjected during casting and solidification to mechanically produced vibrations, the vibratory force is greater than the weight of the material to be vibrated, amplitude and duration being regulatable according to the composition of the cast metal. The frequency is between 2,000 and 10,000 per minute, and its amplitude can be established between one tenth of a millimetre and three millimetres. In one embodiment described, Fig. 1, ingot moulds 2 rest on a table or baseplate 1 which is mounted on a carriage 3 and sprung by conical springs 4. A vibrator 7 is driven by a motor 10 and shielded from the heat by crumpled aluminium packing 9. The moulds 2 are retained on the base-plate 1 by the engagement of bosses 13 beneath steel bars 14 whose ends engage in stirrups 15 and which are pressed downwards by the operation of eccentrics. As applied to top casting, Fig. 4, the moulds 2 rest on a base-plate 1 supported by springs 4 which may be adjusted by nuts 61 to vary the amplitude of the vibrations. The moulds 2 are retained on the base-plate 1 by jacks 18, 19. In a further modification for bottom casting, Fig. 7, a central sow and the ingot moulds 2 are retained on a base-plate by spring tie-rods 25 which connect brackets 21 on the sow and moulds with hooks 20 on the base-plate. In a further modification, Fig. 11, the moulds 2 are retained upon the base-plate 1 by compression springs 29 which connect with hooks on the base-plate, and at their other ends with stirrups 32 which pass over the mould on either side of the casting orifice. The springs are compressed for the hooking operation by an overhead crane, chain links 33 being provided for this purpose.
Patent GB-637203-A (GB)
Title: Improvements in or relating to apparatus for de-frosting or de-misting the windows of vehicles
IPC: B60S1/02
Filed: 1947-10-24
Abstract: 637,203. Preventing misting of windscreens. HUMBER, Ltd., and MELL, L. W. Oct. 24, 1947, No. 28534. [Class 20 (iii))] In apparatus for de-frosting or de-misting windows of vehicles, especially windscreens where a stream of air, usually preheated, e.g. by heat exchange with the engine cooling water, or with the exhaust gases, or by an electric heater, is directed over the window by means of one or more nozzles 1, the nozzle or nozzles direct the air towards the plane of the window to impingeeither on the window or on a surrounding surface adjacent to the window and co-planar therewith. The nozzles have mouths 4 of narrow rectangular section close to the windscreen 3. The bottom edge of the nozzle is close to the screen or frame and the upper edge is parallel to the plane of the screen and at a small distance therefrom. The side walls 5 of the nozzles are cut away to produce lateral blasts of air. The nozzles curve down over the top of a supply duct 6 of rectangular section which may form the lower rail of the windscreen and is supplied by a number of conduits 7. The apparatus may also supply cool air to the interior of a vehicle.
Patent GB-660664-A (GB)
Title: Improvements in coiling and like apparatus
Inventor: BAHR THOMAS GEORGE
IPC: B65H75/08
Filed: 1948-11-03
Abstract: 660,664. Winding strip metal &c. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd. Dec. 2, 1949 [Nov. 3, 1948], No. 28572/48. Class 120(ii). In winding apparatus for coiling metal strip &c. preferably narrow tape of 1 or 2 thousandths of an inch thick, comprises a winding spindle A mounting a, drum B adapted to receive coil centre rings R, R<SP>1</SP>, R<SP>2</SP> &c. and spacer rings F, F<SP>1</SP> &c., disposed in accordance with the coils to be wound, the centre and spacer rings being interchangeably secured on the drum between a fixed end flange C and a detachable end flange 2, the end flange includes a spring- pressed plate 6 and a locking plate 2<SP>1</SP>, releasably held to the drum B by pin and slot connections 3, 5, so that the assembly of rings R and F may be held in position against the plate C but may be quickly released when required. The rings may be slotted to fit on to a key carried by the drum B.
Patent GB-1099881-A (GB)
Title: Methods of producing brake drums
IPC: B21D53/34
Filed: 1966-06-27
Abstract: 1,099,881. Making brake drums; stamping. GENERAL MOTORS CORPORATION. June 27, 1966 [July 26, 1965], No. 28606/66. Heading B3A, B3Q and B3V. A brake drum is made by blanking a disc from a sheet steel stock having a carbon content of at least 50% by weight, heating the disc, drawing the heated disc in a heated die, and finish machining the drawn product. The disc is heated to a temperature between 1000‹F. to 1500‹ F. and the die 12 in which the disc is drawn heated to a temperature between 400‹ F. to 900‹ F. The brake drum may be formed in two drawing operations, the first drawing operation forming the minor diameter portion 14 and the second drawing operation forming the major diameter portion 22. A central aperture 20 is formed in the drum by a punch 18 integral with the punch 10 during the first draw. Alternatively the portions 14, 22 and the aperture may be formed in one drawing operation. The die is preferably lubricated with molybdenum disulphide, graphite or other suitable die release agent. After the drawing the drum is cooled and cleaned, e.g. in an oil bath followed by a degreasing operation. The brake bearing surface of the drum is then machined and holes for mounting bolts are drilled around the aperture 14.
Patent GB-959244-A (GB)
Title: Chlorination of hydrocarbons
IPC: C07C17/152
Filed: 1962-07-25
Abstract: A process for producing organic chlorinated derivatives by oxychlorination of hydrocarbons in gaseous phase at high temperature, by means of a mixture of oxygen, diluted or undiluted by an inert gas, and hydrogen chloride in the presence of a Deacon-type catalyst, comprises passing the gases into a first reactor containing a fluidised catalyst with a flow rate such that only partial conversion takes place and passing the effluent gases from this reactor, without intermediate separation of solid particles swept along by the gas, into a second reactor containing a fixed bed of catalyst for effecting further conversion of the unreacted gases.  In one embodiment, the gaseous mixture fed to the first reactor contains insufficient hydrocarbon for complete reaction and the remainder of the required hydrocarbon is added to the feed to the second reactor. The gas flow rate in the first reactor may be such that 40-80% conversion is attained in said reactor. The fixed bed may be maintained at a temperature 5 to 50 DEG C. higher than that of the fluidised bed, these temperatures being about 250-350 DEG C. for an addition reaction and about 450-550 DEG C. for a substitution reaction. An example describes the oxychlorination of ethylene to give 1,2-dichlorethane with small amounts of vinyl chloride, ethyl chloride, 1,1,1-and 1,1,2-trichlorethane, dichlorethylene and tetrachlorethane.ALSO:Specified oxychlorination catalysts consist of (1) activated alumina particles of mean diameter 60m  and specific surface 300 sq.m./g. impregnated with 1% by weight of cupric chloride and 1% by weight of potassium chloride; (2) a mixture of activated alumina (mean diameter of grains 2 mm.) impregnated with 10% by weight of copper chloride and graphite in grains (90% by volume).
Patent GB-357783-A (GB)
Title: A process for the continuous production of pentaerythrite
IPC: C07C31/24
Filed: 1930-09-25
Abstract: <PICT:0357783/IV/1> Pentaerythrite is produced in a continuous process by the mixing of solutions of acetaldehyde and formaldehyde and a condensing agent such as calcium or sodium hydroxide.  In the apparatus shown formaldehyde, water and sodium hydroxide are introduced at 1 and acetaldehyde and water at 2.  The liquids are mixed in the centrifugal cages 3 and 4 and are kept in motion in the reaction chamber by stirrer 6.  The liquid leaves through the siphon tube enclosed in the cooler 9.
Patent GB-1030342-A (GB)
Title: Improvements in or relating to lamps
IPC: F21S8/00
Filed: 1963-07-19
Abstract: 1,030,342. Illuminating devices. M. C. HARLEY. July 17, 1964 [July 19, 1963], No. 28761/63. Heading F4R. A lamp for illuminating aircraft landing spaces on aircraft carriers, at aerodromes or heliports or the like comprises a source 1 mounted in a reflector 2 for producing a primary beam of parallel rays, a hood 16 outside the beam for limiting the area illuminated by the direct rays from the source and having reflectors 17, 18 to reflect the direct rays on to the area. The reflector 2 is pivoted at 4 to the bottom of a housing 5 carrying the hood 16, an adjusting screw 15 being provided opposite the pivot for varying the angle of inclination of the reflector. The reflectors 17, 18 are pivoted to the hood and their inclination is adjustable by screws 19, 20. The housing is closed by a window 3 which may be ribbed to disperse the light laterally and may be provided with pivoted flaps 21, 22 further to delimit the area illuminated. The hood is pivoted at the lower edge to a support 7 and connected by an adjusting screw 9 at the top edge to the support 7. Colour filters may be provided so that all or part of the light can be coloured. In a simplified form, the reflector 2 is fixed to an internally reflecting hood.
Patent GB-352824-A (GB)
Title: An improved steel mould and method of manufacturing the same
IPC: B21D26/043
Filed: 1930-09-25
Abstract: 352,824. Making casting moulds. UNITED STATES PIPE & FOUNDRY CO., Burlington, New Jersey, U.S.A.- (Assignees of Langenberg, F. C. ; Edgewater Park, New Jersey, U.S.A.) Sept. 25, 1930, No. 28775. Convention date, Feb. 4. [Classes 83 (i), 83 (ii), and 83 (iv).] Stamping; uniting by fusion; physical or molecular structure, altering by mechanical means.-Steel moulds for the centrifugal casting of pipes are made of longitudinal sections welded together, external fluid pressure sufficient to cause a permanent radial contraction being then applied to eliminate variations in the properties of the metal due to welding. Sections A, A<1>, A<2> are welded by joints B preferably in part by butt welding and in part by arc welding, and the mould is placed over a mandrel F of the desired final size of the mould in a container C, supporting packing D permitting longitudinal expansion. Fluid pressure is then admitted through a port E. Specifications 334,634 and 334,960, [both in Class 83 (ii), Metal articles &c.], are referred to.
Patent GB-799462-A (GB)
Title: Improvements in and relating to refuse vehicles
IPC: B65F3/20
Filed: 1956-09-20
Abstract: 799,462. Charging refuse vehicles; compacting loads. LINDE, H. Sept. 20, 1956, No. 28827/56. Class 78 (4). A rake 14 carried by guides 19 in the chamber of a refuse collecting vehicle to distribute the refuse is reciprocated by a pair of power-operated laterally spaced arms 8 pivoted at 9 above the refuse chamber. In the construction illustrated each arm 8 is rocked by a ram 20 and is connected by a link 11 to a carriage 13 guided by rollers 18 from the rails 9. The rake 14 is pivoted at 17 to the carriage 13 so that it can feather or its return stroke but is held in position to compress the refuse by a stop 16 on its forward stroke. In plan view the rake 14 is of V-shape so that as it compresses the refuse it also tends to push the refuse towards the sides of the vehicle. Bins are tipped into the refuse chamber by a cable-operated carriage drawn up guides (not shown) at the rear of the vehicle to bring the bins into engagement with a flap 6 which swings inwardly with the bin.
Patent GB-887403-A (GB)
Title: Star-shaped cereal product and method of making same
IPC: A23L1/164
Filed: 1960-08-19
Abstract: 887,403. Star-shaped cereal products. GENERAL MILLS Inc. Aug. 19, 1960 [Sept. 8, 1959], No. 28859/60. Class 58. [Also in Group V] In preparing a star-shaped cereal product, an extrudable dough is produced, the dough is extruded into the form of a strand having a central portion with connecting radiallyextending arms of substantially uniform width throughout, Fig. 7, the strand is sliced into thin wafers e.g. of about 0À04 inch thickness and the wafers are puffed to form the product, Fig. 8. The extrusion of the dough may be controlled by maintaining its central portion at the point of formation in the form of an annulus having a transverse dimension approximately equal to the width of the arms, Figs. 5 and 6, by the provision of a pin 38, Fig. 1 (not shown), in the extrusion apparatus (see Group V). The wafers may be puffed by subjecting them to radiant heat, frying in fat or vacuum. The cereal product may be coloured, or dusted or coated with flavouring substances such as salt, sugar, cocoa and spices. A recipe for an extrudable dough is given. Specification 530,157 is referred to.
Patent GB-355553-A (GB)
Title: Improvements in or relating to motor propelled road vehicles provided with road wheels and endless tracks
IPC: B62D55/02
Filed: 1930-09-26
Abstract: 355,553. Endless-track vehicles. BREWER, G., 33, Chancery Lane, London. - (Maffei, Akt.-Ges.; J. A.; Munich, Germany.) Sept. 26, 1930, No. 28873. [Class 79 (i).] Comprises a motor vehicle having road wheels and endless tracks, wherein the road wheels c and the tracks e are carried at the ends of two-armed elastic levers b, and the tracks can be raised or lowered while the road wheels are constantly in contact with the ground. An elastic support of the vehicle is thus provided for both means of travel and the whole length of the vehicle is utilized as wheel-base whether the tracks are in use or not. In order to transfer the weight of the vehicle to the wheels and the track in any desired proportion the pivot supports f of the levers b are adjustable along the frame a and the pivot shoes g are adjustable along the levers b so as to alter the position of the lever pivots.
Patent GB-813604-A (GB)
Title: Improvements in photographic materials and in light-sensitive polymeric compounds therefor
IPC: C08F8/14
Filed: 1955-10-11
Abstract: Light-sensitive partial esters of polyvinyl alcohol and cinnamic acid containing from 13.5 to 60 mol. per cent of recurring units <FORM:0813604/IV (a)/1> where R represents a monocyclic aryl group of the benzene series, e.g. phenyl, m-nitrophenyl, o-chlorophenyl and p-methoxyphenyl, from 84.5 to 2 mol. per cent of recurring units <FORM:0813604/IV (a)/2> wherein R1 represents a hydrocarbon residue of from 1 to 6 carbon atoms of an organic acid such as the alkyls, methyl to hexyl, are prepared: (1) by partially acylating polyvinyl alcohol with a cinnamic acid halide, e.g. cinnamic acid chloride, o-chloro, m-nitro, o-cyano, and p-methoxy cinnamic acid chlorides and acylating a limited portion of the residual hydroxyl groups with a different acid halide or anhydride; (2) partially acylating polyvinyl alcohol with an acid halide or anhydride other than cinnamic anhydride, followed by limited acylation of the residual hydroxy groups with the cinnamoyflating, or (3) partially de-esterifying a polymeric vinyl ester and then reesterifying with the second aryl halide or anhydride.  The reactions are performed by heating a pyridine solution of the compounds and the products are precipitated after the addition of acetone with water.  A composition of the partial esters with a light-sensitizing agent, e.g. 1 - methyl - 2 - benzoyl - methylene-b -naphthothiazoline and others as described in Specifications 713,947, 717,708, 717,710, 717,711, 717,712 and 743,455, toluene and chlorobenzene, or a mixture of methyl glycol acetate and isopropyl alcohol may be coated on a support for use as a lithographic printing plate as described in Specification 717,710. Specifications 695,197, [Group XX], 695,262, 717,709 and 813,605 also are referred to.