baber/WOPTO huggingface dataset:
Patent GB-1065986-A (GB)
Title: Masking by total internal reflection for image reproduction and display
IPC: G03F1/54
Filed: 1964-06-09
Abstract: 1,65,986. Exposing photo-sensitive layers. RANK XEROX Ltd. June 9, 1964 [June 24, 1963], No.23777/64. Headings G2C and G2H. Photo-sensitive layers are exposed imagewise by forming a powder image on a transparent member, positioning the member in optical contact with the reflecting surface of a transparent body except where contact is prevented by the powder image, positioning the photo-sensitive layer on the side of the transparent member remote from the transparent body and directing a collimated beam of radiation into the transparent body at such an angle that the light is internally reflected in the powder image areas only, so that the photo-sensitive layer is exposed in accordance with the non-imaged areas of the transparent member. The powder image may be formed xerographically and optionally transferred to a transparent receiving sheet before use. The photo-sensitive layer may be a xerographic or diazo layer. The transparent body may be a prism. In a modification, a further photo-sensitive sheet is positioned on a face of the prism not in contact with the powder image, so as to receive the light internally reflected from the image areas of the latter Fig. 5 (not shown).
Patent GB-1316493-A (GB)
Title: Spectrally sensitized silver halide photographic emulsion
IPC: G03C1/12
Filed: 1970-05-15
Abstract: 1316493 Photographic silver halide emulsions FUJI PHOTO FILM CO Ltd 15 May 1970 [17 May 1969] 23797/70 Heading G2C Photographic silver halide emulsions having increased sensitivity in the specific adsorption wavelength of the silver halide and which are also optically sensitized, have a mean silver halide grain size smaller than 0À18 micron or have at least 95% of the silver halide grains smaller than 0À2 micron in diameter and contain at least one sensitizing dye of the formula:- where Z is -O-, -S-, -Se-, -CH=CH-, -N(R 3 )- or -C(R 5 ) (R 6 )-, and wherein R 3 , R 5  and R 6  are each alkyl which may be substituted, aryl or allyl or R 5  and R 6  represent a polymethylene chain which  together with the carbon atom forms a ring; V, V 1 , W and W 1  are all hydrogen except that (i) when Z is -O- at least one may be phenyl or -COOH, (ii) when Z is -N(R 3 )- at least one may be halogen, -OH, -COOH, -CN, alkyl of 1-4C, -CF 3 , alkoxy, alkylamino, acetylamino, acetyl, benzoyl, alkoxycarbonyl, alkylsulphonyl, trifluoromethylsulphonyl, carbanoxyl, alkylcarbamoyl, sulphamoyl or alkylsulphamoyl, (iii) when Z is -S- or -Seat least one may be halogen, -OH, alkoxy or phenyl, (iv) when Z is -CH=CH- at least one may be halogen, -OH, alkyl of 1-4C, alkoxy or dimethylamino, and (v) when Z is -C(R 5 ) (R 6 )- at least one may be halogen, -OH, alkyl of 1-4C, alkoxy, dimethylamino or phenyl; additionally V and V 1  together or W and W 1  together may form a fused-on benzene ring; R and R 1  are each alkyl of 1-4C, substituted alkyl or allyl; L 1 , L 2  and L 3  are each -CH- or -C(R 2 )- where R 2  is H, alkyl of 1-4C, aryl or substituted aryl or L 1  and L 2  or L 2  and L 3  may be connected by a polymethylene chain, or L 1  or L 3  may be connected to R or R 1  respectively by a polymethylene chain; X is an anion and n is O or 1, the dye being an intramolecular salt when n is O.
Patent GB-1105144-A (GB)
Title: Improvements in brackets for supporting beams or the like in building construction
IPC: E04G17/16
Filed: 1965-06-04
Abstract: 1,105,144. Brackets for supporting scaffolding beams. H. ROBINSON. 4, June, 1965, No. 23857/65. Addition to 1,104,681. Heading E1S. The vertical part 10 of the bracket of the Parent Specification is of angle section and the sliding plate 21 is guided on the edges of the flanges of this angle section by the bent ends of rods 22. The arm 11 engaging the wall is pointed and has curved sides, to facilitate removal.
Patent GB-685488-A (GB)
Title: Improved elastic self-sealing band for air tubes for pneumatic tyres
IPC: B29C73/18
Filed: 1950-09-29
Abstract: 685,488. Pneumatic tyres. SOC. FRANCAISE DU CAOUTCHOUC AUTO-OBTURATEUR. Sept. 29, 1950 [Sept. 29, 1949; June 5, 1950; Aug. 10, 1950], No. 23902/50. Drawings to Specification. Class 144 (ii). A self-sealing band for attachment to the tread portion of an air-tube comprises one or more layers of rubber held in transverse compression by adhesion to a layer or layers of rubber in a state of tension. The layers may be assembled whilst the tensioned rubber is under mechanical stretch ; or, the latter may be expanded by immersion in a solvent such as trichlorethylene which is removed by evaporation after assembly.
Patent GB-295947-A (GB)
Title: Improvements in the manufacture and production of liquid and other hydrocarbons and derivatives thereof by the destructive hydrogenation of carbonaceous materials
IPC: C10G1/08
Filed: 1928-08-20
Abstract: 295,947. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 8, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 8, 1927]. Hydrogenation, destructive. - Metals of the 5th or 7th group of the periodic system, or compounds of them, together with aluminium or its compounds are used as catalysts in the destructive hydrogenation of carbonaceous materials. Examples of such catalysts are (1) a calcined mixture of manganese and aluminium hydroxides ; (2) a mixture of ammonium vanadate and alumina. Specifications 277,394 and 285,923 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of metals of the 8th group with aluminium. This subjectmatter does not appear in the Specification as accepted.
Patent GB-239320-A (GB)
Abstract: 239,320. Fairweather, H. G. C., (National Aniline & Chemical Co., Inc.). July 15, 1924. Alkyl - ethers of nitrophenols. - In t h e formation o f alkyl-ethers of nitrophenols such as onitranisol, by reaction between nitrohalogen derivatives of benzene hydrocarbons and caustic alkali in the presence of an alcohol, the caustic alkali is gradually added to the mixture by performing the reaction under a reflux condenser and permitting the alcoholic condensate to percolate through and dissolve the alkali during its return to the reaction mixture. A suitable apparatus comprises an alcohol storage tank 1, a measuring tank 2, a jacketted reaction vessel 3, a reflux condenser 4 and a vessel 5 containing caustic alkali through which the alcohol condensate from the condenser 4 passes on its return to the vessel 3. When the reaction is completed the reaction mixture is cooled, neutralized with sulphuric acid and the alcohol may be distilled off, and passed direct to the tank 1 for reuse. The crude ether may be purified by distillation with superheated steam, and fractionally condensing the distillate, or by treating it with a concentrated aqueous solution of caustic soda, and separating, as by filtration, the purified ether from the precipitated sodium salt of the nitrophenol.
Patent GB-517887-A (GB)
Title: Improvements in and relating to diaphragm valves
IPC: F16K7/12
Filed: 1938-08-15
Abstract: 517,887. Diaphragm valves. SAUNDERS. VALVE CO., Ltd., and SAUNDERS, P. K. Aug. 15, 1938, No. 23979. [Class 135] A diaphragm valve of the kind in which the body has a substantially straight through bore intersected by a shallow weir extending across the bore and having a concave face forming a seating for a diaphragm clamped between the circumferential flange of an opening in the side of the casing and a bonnet part has the diaphragm moved by a connecting rod controlled by a crank or eccentric rotatable about an axis parallel with the plane of attachment of the diaphragm. In the form shown in Fig. 1 a diaphragm compressor member 7 secured to the diaphragm by the usual stud 6 has fingers 8, two of which are thickened, adapted to co-operate with boss 5 and opposed grooves in the bonnet. An eccentric 12 on a squared part 13 of the actuating shaft has a one-piece strap 14 held in place by a clip 19 and provided with a connecting rod having a ball-end 15. This part is adjustably secured in a screwed socket in the part 7 by a split screwed ferrule 16 secured by a grub-screw 30. The shaft 13 is provided with a collar to prevent endwise movement and is adapted to be turned through 180 degrees by a handle having a pair of spaced lugs adapted to co-operate with a stop lug on the casing. A screwed extension of the spindle carries a clamping-member adapted to hold the shaft in any intermediate position. The shaft may be rotated by an electric motor. Specifications 321,892. [Class 135] 362,084 434,664, 434,665, 434,684, 439,701 and 442,790 are referred to. The Provisional Specification in addition refers to Specifications 443,226 and 445,567 and describes a construction in which a crank pin actuated by worm gearing is coupled to the diaphragm compressor by a split castellated ferrule secured by a lock-nut. The Provisional Specification also gives details of a construction in which the valve is actuated by an electric motor.
Patent GB-503724-A (GB)
Title: Improvements in and relating to gilled heating members for liquid heating apparatus
IPC: F24H1/12
Filed: 1938-08-15
Abstract: 503,724. Water - tube hot water boilers. JUNKERS & CO., GES. Aug. 15, 1938, No. 24004. Convention date, Aug. 14, 1937. [Class 64 (i)] A gilled member for liquid heaters comprises several parallel tubes 14-16 in a horizontal plane which are traversed by liquid and carry fins 12 extending across the whole area of the heater, the tube or tubes in the central zone of the heating gases being of larger diameter than those in the outer zone of the gas current. The central tube 15 is of larger diameter throughout or is widened from both ends in vesicular form towards the middle. The liquid is fed through a tube 11 coiled round a casing 10 to the tube 14 and passes from tube 16 through upper tubes 17.
Patent GB-327932-A (GB)
Title: Improvements in and relating to power transmission devices
IPC: F16H15/50
Filed: 1929-08-06
Abstract: 327,932. Weiss, C. W. Aug. 6, 1929. Variable-speed gearing comprises an epicyclic train controlled by a variable nutating gear comprising universal joints. The driving element a of the gearing is connected through spherical element d to the internal gear e of the epicyclic train. The sun gear. h is connected bv a sleeve to the driven element h<3> of the gearing. Planets f<3> are supported in a carrier f<1> fast upon a shaft g with a head g<1>. The head g<1> is connected through a doubly-universally-jointed member m, to a second k<2> secured to a nutating ring k. The ring k supports pairs of rollers l which trace zig-zag paths on the inside of spherical member d. Speed is varied by changing the angular displacement of the bearing k<3> of the outer head k<2>. The bearing k<3> is supported in a slider i which moves angularly in a fixed guideway b'. A rack i<1> upon the slider i is engaged by a central pinion i<2>, so that by turning manually a wormwheel i' the speed of the whole device can be varied from zero to a maximum. A modification is described in which the elements corresponding to a, h<3> are arranged at the same end of the gear device.
Patent GB-927515-A (GB)
Title: New cyclopentanophenanthrene derivatives and processes for the production thereof
IPC: C07J5/00
Filed: 1959-07-13
Abstract: The invention comprises compounds of the formula <FORM:0927515/IV(a)/1> wherein Y is a saturated link or a double bond, and R is hydrogen or a hydrocarbon carboxylic acyl group of up to 12 carbon atoms, together with a process for their preparation by selectively hydrogenating 6,16-dimethyl- D 5,16-pregnadien- 3b -ol-20-one to form 6,16b -dimethyl-D 5-pregnen-3b -ol-20-one, introducing a 17a -hydroxy or 17a -acyloxy group by temporarily protecting the C-5(6) double bond by the addition of chlorine, forming a D 17,20-enol acetate by a method known per se, treating the enol acetate with a peracid to form a 17,20-epoxide and treating the epoxide with alkali, oxidising the 3b -hydroxy group to a keto group, rearranging the double bond from C-5(6) to C-4(5) and inverting the configuration of the C-6 methyl group by treatment with acid and, in the case when the 1-dehydro compound is to be formed, introducing a double bond between C1 and C2 by treatment with selenium dioxide. Specification 899,582 is referred to.
Patent GB-702617-A (GB)
Title: Improvements relating to the packaging of a plurality of small articles
Inventor: FINCH ROBERT HARLEY
IPC: B65D71/00
Filed: 1951-10-16
Abstract: 702,617. Packages. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 27, 1952 [Oct. 16, 1951], No. 24102/51. Class 94 (1) Small articles, such as electric lamps, are packaged in a group of cells each of which has side walls formed from a single blank and all of which are assembled with their side walls in parallel spaced relation, the end walls of the cells being constituted by a pair of members common to all the cells, whereby the package can be divided into smaller groups of cells or  individual cells by dividing those parts of the end members between side walls of adjacent cells. Each cell is formed by folding a blank, Fig. 1, along the lines 2 and gluing the flap 4 to the inner surface of the opposite side wall 1, the part 5 lying across one corner of the cell to form a resilient support for the lamp. The cells are then assembled in a jig and an end wall member, Fig. 2, formed with lines of weakness 6 and apertures 7, is gummed to the tabs 3 at one end of the cells as shown in Fig. 3. The lamps are inserted after removal of the cells from the jig and the package completed by gumming a second end wall member to the tabs at the other end of the cells. The apertures 7 facilitate the tearing of the end wall members along the lines 6.
Patent GB-461756-A (GB)
Title: Improvements in the manufacture of metals and alloys
IPC: C22B9/05
Filed: 1935-08-30
Abstract: Molten metals and alloys are treated with iodine which is introduced in the form of crystals, preferably in a tube or container made of the metal or alloy under treatment.  For example, brass for the production of wire, consisting of 61 per cent of copper and 39 per cent of zinc, may be made by melting the copper, adding the zinc and stirring, and introducing iodine crystals.  The wire may afterwards be annealed in a halogen atmosphere as described in Specification 450,447.
Patent GB-1221695-A (GB)
Title: Pickup arrangement for a papermaking machine
IPC: D21F2/00
Filed: 1968-05-22
Abstract: 1,221,695. Papermaking. BELOIT CORP. 22 May, 1968 [6 Nov., 1967], No. 24455/68. Heading D2A. An arrangement to transfer a paper web from a wire to a felt comprises an endless pickup felt, a guide member extending transversely of the felt for urging the felt into contact with the paper web, the guide member having a peripheral surface in the form of an arc of a cylinder, part of which is in contact with the felt, and a substantially flat surface extending in the opposite direction to the peripheral surface, and diverging away from the felt in the direction of travel of the felt at an angle of ¢-5for a sufficient length to create a substantial vacuum between the felt and the flat surface. The peripheral surface may have a radius of -10 inches, and the substantially flat surface may be slightly curved. The vacuum created by the flat surface may be varied by altering the radius of curvature of the surface, or by varying the angle it makes with the felt. A scraping device, preferably with a saveall may contact the felt immediately after the guide member. The scraper and guide member may form opposite ends of a wall defining a vacuum chamber. The member is shown, in embodiments, as picking a web from a Fourdrinier machine and from a cylinder machine.
Patent GB-518717-A (GB)
Title: Improvements in or relating to extinguishing fires
IPC: A62D1/00
Filed: 1938-08-19
Abstract: 518,717. Fire-extinguishing. DURSTON, G. H., HERMANN, W. M., LANG, M. R., and BLEYBERG, W. Aug. 19, 1938, Nos. 24471/38, 28343/38, 4583/39 and 16393/39. [Class 47 (ii)] A fire-extinguishing medium suitable for attacking fires of magnesium and the like, whether occurring in machines, piles of shavings, or incendiary bombs, consists of a mixture of a powdered, inert, substantially non- fusible, inorganic material, with a solid, semisolid, or liquid organic material which is capable of fusing to form an oxygen-excluding blanket over the fire. The inorganic material or filler .may be powdered slate, sand, aluminium or magnesium oxide,-graphite or china clay. Suitable solid organic materials are bitumen, higher fatty acids, alcohols, esters, or soaps, mineral or other waxes or fusible resins. Liquid or semiliquid organic materials which yield, with the fillers, pastes suitable for spreading over the. fire as a 'wide ribbon, are mineral oils, oleic or naphthenic acids, animal or vegetable oils such as cotton-seed oils, or greases or fats. Exemplary. compositions comprise equal parts of bitumen and slate powder with a smaller proportion of aluminium stearate. Compositions comprising bitumen or magnesium oleate are water-resistant, so that ordinary, fire-extinguishing media may be used against subsidiary fires after an incendiary bomb has been extinguished by the composition. The powdered -compositions may be mixed with burning metal shavings by shovelling.
Patent GB-1013672-A (GB)
Title: Improvements in or relating to underframes for coal-cutting machines
Inventor: HEATH DAVID
IPC: E21C35/12
Filed: 1962-06-27
Abstract: 1,013,672. Underframes for coal-cutters. EDIBRA Ltd. Sept. 25, 1963 [June 27, 1962], No. 24633/62. Heading E1F. The height of an underframe 6, which carries a coal-cutting machine, above a conveyer along which it moves is adjusted by changing the skid blocks 10 (Fig. 2) for others of different thickness. A series of skid blocks 10 is arranged along each side of the underframe, being held by bolts which pass through vertical arms 10b, blocks 8 and plates 7, welded to the underframe, and side plates 11 which engage the conveyer to prevent lateral movement. L-shaped skid blocks 10 may engage channel sections in place of blocks 8 (Fig. 3, not shown), or may engage between two vertical plates attached to the underframe (Fig. 4, not shown). Fig. 5 shows an underframe 19, tiltable by hydraulic jacks 20 and riding on skid blocks 25 as in Figs. 1 (not shown) and 2, underframe 19 pivoting at 21. The jacks may be replaced by mechanical means, or the tilting could be achieved by using skid blocks of different depths along each side of the underframe. By this device a wide range of cutting drums may be accommodated using three sizes of underframes and three ranges of skid block sizes.
Patent GB-1117796-A (GB)
Title: Improved air heating furnace
IPC: F24H3/06
Filed: 1966-06-02
Abstract: 1,117,796. Air heating stoves. TRANE CO. 2 June, 1966 [5 Nov., 1965], No. 24648/66. Heading F4S. An air heater has disposed within, and spaced from, its outer casing 4 a combustion chamber 1 so defining a passageway 6 within which air, supplied by a fan 2, is heated said combustion chamber being supported from the casing 4 solely by means of conduits 8 and 10, the former being an air and fuel inlet and the latter a gas outlet. A hollow cylindrical member 50, disposed within the upper end of chamber 1, defines a combustion gas passage 52, said member 50 having at its bottom end a concave sealing wall 54 and at its top end a volute shaped groove 56, the upper inclined edge 62 of which is welded about its periphery to the top edge of combustion chamber 1. By virtue of the concave wall 54 and the volute shape of the combustion gas discharge space 58, formed between the groove 56 and surrounding walls of said combustion chamber 1, a substantially equal combustion gas flow is realized throughout the annular passageway 52. The outer casing 4 rests on a rectangular base 46 and is connected thereto by means of a slip joint 44 which permits the selection of any angular orientation of the chamber 4. Fuel control means 20, 18 and 16 are housed within a cover 22, which being open at the bottom permits the entry of combustion air, this then being induced into the venturi shaped burner 12 by the flow of fuel gas in pipe 14. The gas outlet communicates with an exhaust stack 26 provided at the top of cover 22. Air supplied by fan 2, the tip of whose blades 32 extend into the passageway 6, is heated by walls 29 and 28 of chamber 1 with some of this heated air being forced by means of a scoop 64 to pass into member 50 where it is further heated before leaving the exchanger. Obstruction of air flow within duct 6 is minimized by making the duet 8 of airfoil section; vanes 5 serve to substantially reduce the swirling motion of air before it leaves the top of the annular passageway 6.
Patent GB-1172012-A (GB)
Title: Improvements in Textile Finishing
Inventor: SCHOFIELD ARTHUR
IPC: D06M16/00
Filed: 1967-05-26
Abstract: 1,172,012. Producing bactericidal finish on protein textiles. CALICO PRINTERS' ASSOCIATION Ltd. 1 May, 1968 [26 May, 1967], No. 24696/67, Addition to 1,096,736. Heading ASE. A modification of the method of specification No. 1,096,736 consists in producing a bactercidal finish resistant to laundering, on textile materials consisting wholly or partially of protein fibres, by treating with a polybasic acid to fix acid groups on the protein material and then combining therewith a metal having bactericidal properties. The textile material may be of wool, silk, alpaca, mohair, cashmere, camel, horse, rabbit hair, casein, arachin, zein or mixtures thereof with other chemical types of fibres. Specified acids are maleic, oxalic, citraconic, malonic, o-phthalic, cyclopropane-1,1-dicarboxylic, phosphoric and pyrophosphoric acids. The bactericidal metal combined with the fibres may be Ag, Cu, Hg, Pb, Be, Sb or Cd.
Patent GB-598341-A (GB)
Title: Improvements in hoists
IPC: B66C13/18
Filed: 1945-09-24
Abstract: 598,341. Hoists: BRIERLEY, M. S. L.. Sept. 24, 1945, No. 24725. [Class 78(iii)] A hoist comprises a load arm which is pivotally mounted intermediate its ends on a framework and raised or lowered by a fluidpressure - operated piston and cylinder device ' directly interposed between the framework and the end of the 'jib remote from the point of attachment of the load, the cylinder being pivotally secured to one member while the piston rod is pivotally secured to the other. The Figure shows the application to a hoist mounted on a tractor in which the load arm b is pivotally mounted at c on a framework a and is operated by a piston-andcylinder device having its cylinder f pivotally mounted on a member d of the framework a and the piston rod h pivotally connected to the arm b at c<1>. Fluid is supplied to the cylinder by a pump mounted on the tractor and driven by the tractor engine.