baber/WOPTO huggingface dataset:
Patent GB-165740-A (GB)
Title: Improvements in or relating to coke ovens or the like
IPC: C10B5/00
Filed: 1920-09-08
Abstract: 165,740. American Coke & Chemical Co., (Assignees of Roberts, A.). Sept. 8, 1919, [Convention date]. Drawings to Specification. Coke ovens; expansion joints.-In a bench of coke ovens in which the two heating-walls associated with each oven are composed of blocks arranged to form a network of interconnected passages, expansion openings are provided in the sole and roof portions of each oven, and the openings in the sole are covered by a false bottom. Expansion openings are also provided in the brickwork between the regenerator and the ovens. Specifications 1570/15 and 150,983 are referred to.
Patent GB-478416-A (GB)
Title: Improvements in and relating to contrivances for applying printing ink to the ink distributing roller of duplicators
IPC: B41L13/18
Filed: 1937-06-25
Abstract: 478,416. Duplicating-machines. SOKAL, H., and DWORAK, F. June 25, 1937, No. 17759. Convention date, June 26, 1936. [Class 100 (ii)] Inking-apparatus.-In a device for applying ink to the ink-receiving roller of a duplicating-machine by means of a piston pump, the head of which contains the upwardlydirected ink byepass with which the ink-distributing tube directly communicates, the ink-distributing tube 4 is disposed with its ink-outlet apertures 5 close above an inkreceiving roller 6 which occupies the entire space between the tube and cylinder 1 of the pump. The ink in the cylinder 1 is forced by a piston 2 through a passage 3 into the tube 4, and then out of the apertures 5 on' to the roller 6 which may ink the printing-cylinder directly or through the intermediary of transfer rollers. The piston is secured to a screw-threaded rod 11 engaged by a rotary nut 12 secured to a tube 16. The tube 16 is secured to a ratchet-wheel 17 which is rotated step-by-step by a pawl 18 actuated from the machine. When the piston has been fed forward to the end of the cylinder it is stopped automatically by a pin 22 on a rod 14 secured to the piston depressing one end 21 of a pivoted lever 19, the other end of this lever carrying a pin 23 for holding the pawl 18 away from the ratchet-wheel 17. The effective stroke of the pawl may be varied by allowing the pawl to ride over the pin 23, and supporting the end of the lever 19 on one of a number of pegs on a rotatable disc whereby the height of the pin 23 can be varied. The piston 2 can be brought back into initial position by rotating a hand-crank 26 secured to the tube 16.
Patent GB-1292196-A (GB)
Title: Improvements in or relating to metering apparatus
IPC: G06M1/276
Filed: 1970-04-14
Abstract: 1292196 Mechanical switches without quick action SANGAMO ELECTRIC CO 14 April 1970 [26 May 1969] 17771/70 Heading H1N [Also in Division G4] A double-pole, double-throw reversing switch consists of a rotating printed circuit disc 16 having inner and outer conducting areas 40, 41, each with five segments a to e interdigitized and separated by an insulating band 38. Two wiper contacts 42b and 42d continuously bias on the inner and outer conductive areas respectively and two wiper contacts 42a and 42c alternate between the inner and outer areas as the disc rotates. The contacts are thereby alternatingly coupled in pairs to reverse the polarity of D.C. on lines 71, 78 ten times for each revolution of the disc.
Patent GB-668647-A (GB)
Title: Improvements in or relating to plates or films for colour photography and cinematography
IPC: G03C7/12
Filed: 1949-07-06
Abstract: 668,647. Colour photography. BOUDOT, E. M., and ANDRE, J. M. J. P. d'. July 6, 1949 [July 7, 1948], No. 17831/49. Class 98 (ii). A sensitive four-colour screen plate or film is made by placing a fine-grain gelatine-silver halide material in a camera, photographing a parallel line pattern thereon as by exposure to white wires stretched over a backing of dull black velvet, but regulating the photographic action as by short exposure or by use of a violet filter so that only the surface of the material is affected, colour developing or developing and mordant-dyeing the pattern, for example to blue, repeating this to produce a perpendicular line pattern coloured for example to yellow, so that the points of intersection give a resulting tint, for example green, uniformly exposing, or exposing to the same pattern at 45 degrees and developing and dyeing similarly, for example to red. The silver halide remaining in the layer is used for formation of the silver image of the subject photographed without further treatment if it was, originally, panchromatic; or with dipping or panchromatizing if it was not. Due, however, to the loss in sensitivity due to the processing operations and to absorption by the pattern itself, this material is especially suitable for use as positive; for negative purposes the material is fixed and hardened as with hypo and chrome alum after its last dyeing, immersed in a solvent for the support, such as acetone or methyleellosolve acetate for cellulose ester or hydrofluoric acid if the support is made of glass and placed in contact under pressure and heat against a panchromatic emulsion with interposition of a thin layer of gelatine, the support of the screen being thereafter removed.
Patent GB-179236-A (GB)
Abstract: 179,236. Odhner, V. J. Jan. 10, 1921. Adding and subtracting apparatus.-In ma. chines of the pin-wheel and cam-disc type, set by means of sliding rack-bars, the latter 12 are slidably mounted in arms 8 pivoted at 9 and are normally kept out of engagement with the toothed cam-discs 5 by means of springs 17. In order to set up a number, the projecting portion 15 of a rack-bar is pressed downwards, so as first to cause the rack to move inwards to engage the cam-disc, this being effected by the bevelled face 30 bearing on the fixed detent pin 19. The rack is then slid downwardly to the necessary extent, thus turning the cam-disc, and is held by the pin 19 engaging one of a series of notches 18 on the rack. The setting is indicated at openings 24, arranged near the result-reading apertures, by means of a numbered metal band 20 attached at one end to the rack, passing between guide rollers 21 and wrapping itself around a stationary cylinder 22 nearly surrounded by a casing 26. In a modification, the metal band is secured to a spring-controlled drum or disc mounted in place of the cylinder 22. In order to return the camdiscs to normal, a drum 32 bearing a series of toothed arcs 33 is disposed as shown and can be rotated by an external key so as to engage any displaced discs and return them to normal position as shown. In this restoring action, the racks 12 are first automatically brought into engagement with the cam-discs so as to be returned with them, and this is effected by the provision of a bail 35 pivoted at 36 and carrying a roller 39 engaging a cam on the drum 32. As soon as the latter begins to turn, the roller is forced downwardly, thus causing the bail to depress the rearwardly-extending arms 42 of the rack-carrying arms 8 and so force the racks into gear. To prevent rotation of the main shaft 4 when the cam-discs are being set or restored and vice versa, a plate 46 pivoted at 36 has extensions 47 bearing against the arms 42 and is provided with an arm 48 upturned at 49 to co-operate with a notch 50 in a disc 51 rotatable by spur gearing from the shaft 4.
Patent GB-782712-A (GB)
Title: Improvements in or relating to saw-setting apparatus
IPC: B23D63/20
Filed: 1955-06-22
Abstract: 782,712. Saw setting; grinding. GARSIDE, A. June 22,1956 [June 22,1955], No. 18012/55. Classes 60 and 145. Apparatus for setting the teeth of a band saw 12 comprises a guide 7 formed between the flanges of two plates 5 and 6, a pair of spaced anvil blocks 15 on opposite sides of the guide and a flat plate lever 22 pivoted at 21 and carrying at each end an adjustable hammer head 26 so that, when the lever is swivelled, the hammer heads set two spaced teeth in opposite directions against the anvils. A pin 40 adjustable in a slot 41 in an extension 39 of the lever 22 strikes a spring- loaded lever 33 carrying a pawl 35 and advances the saw by an amount equal to the tooth pitch just prior to the engagement of the hammer heads and the teeth ; backward movement of the saw is prevented by a spring-loaded plate 42. Lateral and vertical adjustment of the saw in the guide is provided by screws 11 and 13. On removal of the lever 22, the apparatus may be used in combination with a grinding wheel 44 for sharpening the teeth. The wheel is carried by two arms 43 fixed on a ring 47 which is clamped to, but angularly adjustable on, a second ring 48 pivoted at 50. An electric motor 52 drives the wheel through a belt 53 which is automatically slackened when the arms 43 are raised to the out-of-use position.
Patent GB-797953-A (GB)
Title: Polymerisation process with catalyst system of the redox type, and polymers thereby obtained
IPC: C08F4/40
Filed: 1955-06-22
Abstract: Polymers containing at least 50 per cent of acrylonitrile are prepared by polymerization with the aid of a redox catalyst system consisting of an organic or inorganic oxidizing agent, e.g. hydrogen peroxide or potassium persulphate, and a substance containing at least one <FORM:0797953/IV (a)/1> group and having in a position alpha with respect to the <FORM:0797953/IV (a)/2> group a group containing an active hydrogen atom, e.g. thiopropionic acid, thiooxalacetic acid, dithiooxalic acid and its monosodium salt, thiopropionic acid, methyl and ethyl thioacetoacetates, thiobenzoic acid, diethyldithiocarbamic acid, ethyl xanthic acid, N,N1-dimethyl and N,N1-diphenyl thioureas and dimethylthiuram sulphide.  In addition to their catalytic function the thio carbonyl compounds also act as chain-transfer agents.  Polymerization is preferably carried out in aqueous media.  Copolymers specified are those of acrylonitrile with acrylamide and vinyl acetate and a terpolymer with ethyl acrylate and vinyl pyridine.  Specification 597,368, [Group IV], is referred to.
Patent GB-834316-A (GB)
Title: Urea-formaldehyde condensates and adhesives produced therefrom
Inventor: HUBBARD DONALD ARTHUR
IPC: C08G12/12
Filed: 1957-06-06
Abstract: Solid stable urea-formaldehyde condensates are prepared by mixing urea with 1.5-2.0 mole. equivalents of formaldehyde, in the form of an aqueous solution of the formaldehyde, at pH 6.5-8, heating the mixture at 80-100 DEG  C. for 2-6 minutes, cooling, subjecting the product at pH 6.5-7.5 to vacuum distillation at 35-50 DEG  C. until the solids content of the residue is about 55-70%, adjusting the pH of the residue to 7.0-8.5 and immediately cooling to form a solid product.  The product is useful as an adhesive for which purposes it is preferably brought to about 100 DEG  C. after which an acid catalyst, e.g. formic acid, or an acid-producing salt is added and the heating continued until the desired viscosity for adhesive purposes is achieved.
Patent GB-541464-A (GB)
Title: Improvements in or relating to lamp sockets
IPC: H01R33/97
Filed: 1940-09-11
Abstract: 541,464. Lamp-holders. KODAK, Ltd (Eastman Kodak Co.). Sept. 11, 1940, No. 18116. Divided out of 541,454, [Group XX]. [Class 38 (i)] A holder for a screwcap lamp to allow of inserting the lamp by a direct thrust comprises a socket 1 into which the lamp-cap 3 enters loosely and a latch member 5 pivoted at 7 and pressed into engagement with the cap by a resilient strip 8 that forms the supply conductor from the terminal 9. Pressure on a finger-piece 15 releases the latch. Specification 541,454 is referred to.
Patent GB-752967-A (GB)
Title: Method of manufacturing porous tubes for electric storage battery plates
IPC: H01M4/76
Filed: 1954-06-21
Abstract: 752,967. Batteries. YAMAURA, M., and NAKASEKO, N. June 21, 1954, No. 18167/54. Class 53. [Also in Group XXVIII] A porous tube for containing the active material of an accumulator electrode is made from a mat of glass filaments which are laid at an angle to one another and piled up to a thickness between 0.1 and 0.2 mm. The mat is cut to a rectangular shape and sprayed with an adhesive which may consist of a solution or suspension of polyvinyl chloride or a phenol formaldehyde condensation product. The adhesive concentrates on the crossing points of the filaments leaving fine openings between them. The mat is then rolled several times round a mandrel to form a tube which is then removed and dried. Sufficient friction to assist rolling may be produced by spraying a water-soluble binder such as gelatino on one side of the mat or the binder and adhesive may be applied simultaneously. Both the inner and outer surfaces of the tube may finally be coated with adhesive which may be more concentrated at the ends of the tube. In a modification of the method an additional glass fibre mat impregnated with adhesive may be rolled around the first one.
Patent GB-627158-A (GB)
Title: Improved method and machine for mining coal
IPC: E21C27/36
Filed: 1947-07-10
Abstract: 627,158. Mineral-mining machines. MAVOR & COULSON, Ltd., and GALLOWAY, W. S. July 10, 1947, No. 18224. [Class 68 (i)] A mineral-mining machine comprises a selfpropelled vehicle 11 having mounted at either end a battery of at least four cylinder and ram units 15, the rams carrying wedge cutters. These wedge cutters are advanced into the face in a predetermined sequence to shear away the mineral. The sequence is such that first the upper outermost cutter 1 is advanced to shear away a strip of mineral from the face and on its withdrawal the wedge 2 immediately below and the upper wedge 3 adjacent the wedge 1 are advanced simultaneously to shear away the remaining lower level section and a further upper section at a greater depth from the original face of the seam than the first section. If only a four wedge assembly is used, then the inner lower cutter is advanced independently after withdrawal of the wedges 2, 3 to remove the lower section of mineral left. If the wedge head assembly comprises more than four wedges, then the intermediate wedges 4-9 are advanced in staggered pairs as in the case of the wedges 2, 3. A floor stripper is positioned beneath each wedge assembly. The valve system controlling the distribution of fluid to the various rams may be manually or automatically operated.
Patent GB-699534-A (GB)
Title: Hay sweep
IPC: A01D87/00
Filed: 1951-08-03
Abstract: 699,534. Hay-sweeps. BROWN, E. W. Aug. 1, 1952 [Aug. 3, 1951], No. 18465/51. Class 6(iii) A hay-sweep of the kind having a main frame 10 secured transversely in front of a tractor and carrying a series of parallel forwardly-extending tines, has each tine formed as a short rigid rear part 15 secured to the frame and a longer forward part 16 slightly spaced from the rear part but connected thereto at top. or bottom by a spring, such as leaf 17. The tines may be formed of wood or of steel tubing with a renewable tip 18. The frame 10 may have an upstanding cradle 14 to shield from hay the front of the vehicle, e.g. the engine radiator.
Patent GB-379448-A (GB)
Title: A method of locating locomotive and like axles in frames
IPC: B61F1/06
Filed: 1931-06-26
Abstract: 379,448. Railway vehicle under-carriages. SKERRETT, H. N., 24, Temple Row, Birmingham.-(Timken Roller Bearing Co. ; Denber Avenue, Canton, Ohio, U.S.A.) June 26, 1931, No. 18482. [Class 103 (vi).] Each driving axle 4, of a locomotive, is enclosed in a housing 6 the ends of which have trunnions 7 mounted in guide blocks 8 slidable in the horn-plates 3 of the frame 1, wear plates 9 being provided between the blocks 8 and the horn-plates. The openings in the horn-plates are wider than the blocks 8 and wear plates 9 combined, and when each axle is squared up to its proper position the gaps are filled by shims 14 which may be welded at 15.
Patent GB-839805-A (GB)
Title: Sprayable compositions
IPC: A61Q5/06
Filed: 1958-06-10
Abstract: A sprayable composition comprises a copolymer of maleic anhydride and a C2-C4 olefine esterified to the extent of 50-70% with a C1-C4 alkanol, as solvent an anhydrous C1-C4 alkanol and as a propellant a C1-C3 halogenated alkane.  The copolymer may contain the olefine and anhydride in a mol. ratio between 40:60 and 60:40 and have a molecular weight of 25,000-70,000.  It is esterified to at least 50% by simple addition of alcohol, further esterification requires catalyst which must be removed together with any water formed.  The solution of esterified copolymer in alcohol can be made simply by adding excess alcohol to the copolymer.  The use of ethylene and propylene as comonomers is exemplified.  The haloalkane may be trichlorofluoro-, dichlorodifluoro-, or trifluorochloro-methane or 1,2-dichloro-1,1,2,2-tetrafluoroethane or mixtures thereof.  The composition may contain 0.5-5 parts by weight of esterified copolymer, 25-50 parts of alcohol and 49-74 parts of propellant per 100 parts of the composition.  Up to 25 parts by weight per 100 parts of copolymer of a plasticizer may be added, e.g. dioctyl phthalate, diethyl phthalate butyl phthalyl, butyl glycollate or alkyl adipates or sebacates.  The composition may be used as a hair lacquer when lanolin, non-drying oils, dyes, waxes, pigments and perfumes may be added, or as shoe polish, shoe dye, or floor or automobile finishes. The coatings formed by the compositions are easily washed off.
Patent GB-596114-A (GB)
Title: A new or improved device for controlling the tuning condenser and driving the dial indicator in wireless receiving sets
IPC: H03J1/14
Filed: 1945-07-19
Abstract: 596,114. Adjusting radio apparatus. VIDAL, S. P. L. J. July 19, 1945, No. 18530. Convention date, Feb. 1, 1943. [Class 40 (v)] A device for driving the tuning condenser and indicator in wireless receivers comprises a shaft, driven directly by the control knob, having a worm coacting with a tangent wheel driving the tuning condenser, mounted so as to allow over-turning of the wheel, and a part of length equal to the indicator scale, in which is cut a helicoidal groove engaging a resilient device carried by the index of the dial and permitting the shaft to turn when the index is in its end positions. The tuning knob 9, Fig. 1, of a wireless receiver drives a shaft 4 which carries a worm 10 and a part in which a helicoidal groove 11 is cut. The worm 10 co-operates with an ebonite wheel 13, which is elastically secured to the axis 12 of the movable plates of the condenser by springs 15, Fig. 3, and collared discs 16. The condenser is elastically suspended at the end carrying the wheel 13 by means of fork 26, the stem of which engages a spring 29. The index 18, Fig. 1, is slidably mounted between horizontal rods 3, and carries a block 19 through which the shaft 4 passes. The block 19 also carries a ball 22, Fig. 4, which is held in the groove 11 by a spring 23 and plug 24. The end of shaft 4, Fig. 1, carries a flywheel 25, mounted between the worm 10 and the knob 9. This end of shaft 4 may overhang the condenser driving wheel 13 or may be elastically suspended. The grooved part of the shaft 4 may be joined to the part carrying the worm 10 by a sleevejoint.
Patent GB-563087-A (GB)
Title: Improvements in or relating to air-compressing plant
IPC: F02C5/08
Filed: 1942-12-30
Abstract: 563,087. Combustion products power plant. PESCARA, R. P. Dec. 30, 1942, Nos. 18549 and 18550. Convention dates, Jan. 14, 1942, and April 20, 1942. [Classes 7 (i) and 7 (ii)] [Also in Group XXVI] A free-piston gas generator C supplies a turbine B which drives a turbo-compressor A. Air is delivered by the compressor at 20 for some other user and air is taken either at an interstage outlet 19 or a final outlet 19<1> to supercharge the gas generator. The other user of the compressed air may be a gas generator supplying a useful power turbine. In Fig. 2, C\ C<2> are gas generators supplying a turbine B. The compressor A supercharges the gas generators C<1>, C<2> and provides air for gas generators D<1>, D<2>, D<3> supplying a turbine E. The plant is governed by a speed governor 40 which controls the inlet of fuel to the generators C<1>, C<2>. Instead of generators D<1>, D<2>, D<3>, the air may be preheated by the exhaust of turbine B and passed to a combustion chamber of the continuous combustion type leading to a useful power turbine or, the gas supplied by the generators D may be used in a reciprocating piston engine. Several control arrangements are described including a single control of the fuel inlet for all the generators C, D which may respond to the speed of the useful power machine or the pressure of the air delivered by the generators D and a control of the fuel inlet of the generators C in response to the pressure of their delivery in conjunction with a control of the fuel inlet of the generators D in response to the speed of the useful power machine. In Fig. 12, governors 44, 45 respond to the speeds of the turbines B, E and move rods 46, 47. A lever arm 50 compounds these movements and the result is transmitted from a rod 49 to the fuel inlet control of the generators C.
Patent GB-1325953-A (GB)
Title: Method of manufacture of colour cathode ray tube screens
IPC: H01J9/227
Filed: 1971-06-02
Abstract: 1325953 Colour television tubes ZENITH RADIO CORP 2 June 1971 [24 Aug 1970] 18598/71 Heading H1D In the manufacture of a multi-dot or like colour screen wherein each phosphor element is deposited over a filter element which transmits the colour emitted by the phosphor, the filter elements are deposited by a photo-resist process and comprise an inorganic colourant derived by heating an organic metallic compound. In one process the screen is coated with the organic compound, which is insoluble in water, coated in turn with a water soluble resist, such as polyvinul alcohol sensitized with ammonium dichromate, (Fig. 3, not shown). The photo-resist is exposed through a shadow mask and developed to leave a dot pattern of the resist over a continuous layer of the organic compound (Fig. 4, not shown) and the screen is then washed with a solvent which removes exposed areas of the organic compound (Fig. 5, not shown). A heating step converts the remaining organic compound dots into dots of filter material and may be carried out at this stage, or alternatively after all three filter patterns have been deposited in like manner, or alternatively as a final step when all the filters and phosphors have been deposited. Preferably the three sets of filters are deposited first and then the overlying phosphors are deposited on them by a photo-resist process. As an alternative, phosphor material may be included in the photo-resist coating which is used to form the filter pattern so that the filter and phosphor materials are deposited simultaneously. In an alternative process the organic metallic compound is mixed with an organic based photosensitive polymer to form a single coating which is exposed and developed to form a dot pattern (Fig. 7, not shown). The organic metallic compounds are preferably metallic lustres, that is metal resinates which are the reaction products of metal compounds or oxides as a base neutralized with an organic resinic acid. Gold with no oxide additive develops a reddish colourant, chrome oxide results in a green tint, and cobalt oxide blue. The edges of the filter dots may overlap to form opaque areas between each light transmission area (Fig. 1, not shown).
Patent GB-1003178-A (GB)
Title: Method of manufacturing water soluble film
IPC: D01F1/10
Filed: 1962-05-15
Abstract: Water-soluble films are made of compositions comprising a water-soluble polyvinyl alcohol derivative selected from partially saponified polyvinyl esters, low acetalized polyvinyl alcohol, urethanized polyvinyl alcohol, hydroxyethylated polyvinyl alcohol, cyanoethylated polyvinyl alcohol, and sulphoacetalized polyvinyl alcohol, a water-soluble starch or starch degradation product, and optionally a nonionic or anionic surface-active agent.  Specified starch degradation products are amino dextrin, dextrin white, dextrin yellow, British gum, erythrodextrin and achrodextrin.  Examples describe the making of films by casting aqueous solutions of (1) urethanized polyvinyl alcohol and dextrin white; (2) urethanized polyvinyl alcohol, dextrin yellow and an alkyl phenol-ethylene oxide condensate; and (3) partially saponified polyvinyl alcohol, starch and an alkyl phenol-ethylene oxide condensate.