baber/WOPTO huggingface dataset:
Patent GB-243512-A (GB)
Title: Improvements in or relating to means or apparatus for sieving or sifting cinders, ashes and the like
IPC: F24B15/00
Filed: 1924-11-13
Abstract: 243,512. Holt, T. B. Nov. 13, 1024. Reciprocating or oscillating sieves; sieves with compound motion. - In cinder sifting apparatus of the type comprising a riddle mounted in a dustbin or other receptacle, the riddle is mounted so as to be capable of a rocking movement about a horizontal pivotal support, and an oscillating movement about its central vertical axis, in addition to horizontal sliding and vertical reciprocating movements. In the construction shown in Fig. 1, the riddle 14 is of smaller dimensions than the dust-bin 1, and is supported on two diametrically opposite pins 11, being actuated by a handle 9 passing through a circumferential slot 8 in the side of the bin. The edges of the slot may be plain or wavy in outline. The modification shown in Fig. 6 comprises a runner 21 on the riddle coacting with a corrugated support 19 to produce the movement about the pins 11 when the handle is reciprocated in the slot. Fig. 5 shows another modification in which corrugated edges 17 at diametrically opposite areas of the riddle engage the pins 11. In the construction shown in Fig. 7, diametrically opposite corru. gated supports 19 on the bin are engaged by runners 21 on the riddle. In the construction shown in Figs. 5 and 7, an additional rocking movement is obtained by setting the corrugations of the parts 17, 19 out of alignment diametrically.
Patent GB-616724-A (GB)
Title: Drive mechanism for concrete mixers
IPC: B28C5/42
Filed: 1946-09-09
Abstract: 616,724. Concrete mixers. DEHN, F. B. (Jaeger Machine Co.). Sept. 9, 1946, No. 27063. [Class 86] A concrete mixer of the kind mounted longitudinally on a vehicle, particularly an automotive vehicle, is rotated by an independent internal combustion engine 12 which is mounted transversely of the vehicle chassis 5. A gear box 13 arranged in line with the engine is supported on a transmission shaft casing 15 which is mounted on a water tank 16 fixed in the chassis. The engine-driven shaft 17 drives a transmission shaft 22 which drives a second, parallel shaft on which is a bevel pinion 27 driving a bevel wheel 28 on an inclined shaft which drives an internallytoothed gear 32 on the closed end 7 of the mixer. The shaft 17 also drives a pump 35 which draws water from the tank 16 and passes it to the charging end of the mixer. The engine, gearing &c. are enclosed by a hood 39 with a hinged door.
Patent GB-294026-A (GB)
Title: Improvements in or relating to furnace roofs
IPC: F27D1/02
Filed: 1927-10-12
Abstract: 294,026. Strunk, E., and Reppman, A. Oct. 12. 1927. Roots.-In a furnace roof formed of blocks which are individually suspended by hangers from overhead supports, the opposite faces of the blocks are curved so that they exert a mutual wedging action. When the blocks are to be withdrawn upwards as shown in Fig. 1, the curves should be so struck that of all the normals within a block to the concave side, that drawn through the uppermost point B is the longest, and this may be effected by striking curves of the same radius from points on or above a continuation of the line AB. The blocks may be staggered, or may be arranged in opposite directions in adjacent rows, and their plane faces may be either normal or inclined to the plane of the roof. The suspending device comprises a dovetail clamp 3 removably connected to a hooked hanger bar 5 having a set-screw 9 by which the position of the block can be adjusted. The connection between the clamps and the hanger bars is made by non- circular pins 4 in the clamps and correspondingly formed holes in the bars. A pair of blocks may be held in a single clamp. Curved roofs, or curved portions of a roof, may be formed by varying the wedge formation of the blocks by reversing blocks of the same shape as those used for a flat portion. When the roof is curved two or more rows of blocks may be carried by a single overhead support, or they may be adjustably supported, as shown in Fig. 8, by threaded stems 11 and nuts 13 from a curved member 12.
Patent GB-412907-A (GB)
Title: Improvements in azo dyestuffs
IPC: C09B29/20
Filed: 1932-09-29
Abstract: Azo dyes are made in substance, on a substratum or on the fibre by coupling a diazo-, tetrazo- or diazoazo compound with a 2<1> : 3<1>-hydroxynaphthoyl-4-amino diphenyl or a derivative thereof, e.g. halogen, nitro, hydroxy, methoxy, ethoxy, methyl, ethyl and phenyl derivatives.  In examples the following dyestuffs are described: (1) 2 : 5-dichloraniline --> 2<1> : 3<1> - oxynaphthoyl - 4 - aminodiphenyl (barium, aluminium and chromium lakes specified); (2) m - nitro - p - toluidine --> 2<1> : 3<1> - oxynaphthoyl - 4- aminodiphenyl (Turkey red on cotton); (3) dianisidine \sQ 2<1> : 3<1> - oxynaphthoyl - 4 - amino - 4<1> - chlordiphenyl (dark navy blue on cotton); (4) 4 - chlor - 1 : 2 - toluidine --> 2<1> : 3<1> - oxynaphthoyl - 4 - amino - 4<1> - methoxydiphenyl (bluish red on cotton).  The components may also be used in the printing process, e.g. with nitrosamines.  Other diazo components specified are: 2- or 4 - amino - diphenyl, aminoazo-o-toluene, m-phenylenediamine, benzidine, saffranine, 4-ethoxybenzeneazo-1-naphthylamine, 5-nitro- 1 : 2-toluidine, tolidine, 5-nitro-1 : 2-anisidine and 4-amino-4<1>-methoxydiphenyl.  2 : 3 - Hydroxynaphthoyl - 4 - aminodiphenyls are prepared from the corresponding amine and acid or acid chloride.
Patent GB-771875-A (GB)
Title: Process for the production of monoquaternary ammonium compounds
IPC: C07C237/00
Filed: 1955-09-23
Abstract: Mono-quaternary ammonium salts of amides of the formula <FORM:0771875/IV(b)/1> wherein R1 and R2 are alkyl groups or together form a polymethylene chain, and which still retain the primary amino group are made by treating the diamine with a quaternating agent, for example an alkyl halide, dimethyl sulphate or the ethyl ester of p-toluenesulphonic acid.  R1 and/or R2 may suitably be methyl, propyl, butyl or amyl groups or together with the nitrogen atom may form a pyrrolidine or piperidine ring.  The products are used as chemical intermediates or pharmaceuticals. In an example, m-amino-(dimethylaminoacet)-anilide is treated with methyl iodide.
Patent GB-458620-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/26
Filed: 1935-10-02
Abstract: 458,620. Electric incandescent lamps with internal screens. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Oct. 2, 1935, No. 27225. Convention date, Nov. 2, 1934. [Class 39 (ii)] An electric incandescent lamp with a gas filling consisting wholly or mainly of krypton, xenon, or a mixture of these gases, within a bulb having an internal volume, expressed in cubic centimetres, of the order of magnitude of the operating wattage of the lamp + 25, is provided with a screen 8 situated between the cap 2 and filament 3 in a plane normal, or substantially normal, to the axis of the lamp, the diameter of the screen being equal to, or slightly less than, the diameter of the junction between the cap and the bulb, whereby the useful light flux is increased without appreciably affecting the distribution of the light. In the example the screen 8 is mounted on the stem tube 6 and is provided with a reflecting-surface on the side facing the filament.
Patent GB-486282-A (GB)
Title: A method of chasing two screw threads of different pitch simultaneously on automatic screw lathes
IPC: B23B11/00
Filed: 1937-10-07
Abstract: 486,282. Screw-cutting lathes. LEVY, F. Oct. 7, 1937, No. 27233. [Class 83 (iii)] In cutting two screw-threads of different or opposite pitch simultaneously two chasers are used, one being mounted on a main slide and the other on a secondary slide carried by the main slide, and means are provided for giving a differential feed to the secondary slide dependent on the feed of the main slide. The main slide c is carried by guides on the lathe bed a and is fed by any known means as commonly used on automatic screw machines. A chaser d is mounted in a holder f adjustably secured to a guide g on the slide a, and the secondary slide h carrying the chaser j in a holder i is movable along the guide g. A rack l on the slide h engages a toothed quadrant on a lever m pivoted at o in the slide c and having a toothed quadrant at the lower end engaging a rack n fixed to the bed a. Thus as the slide c is fed to cause the chaser d to cut the thread e on the rotating work b, the slide h will be fed in the same direction but at an increased speed to cause the chaser to cut the thread k. The pivot o is carried by a plate q vertically adjustable on the slide c and passes through a slot p in the slide so that different levers m may be used for varying the pitch of the thread k. For cutting threads of opposite hand an idle pinion may be inserted between the toothed quadrants on the lever m and either of the racks l, n, or one of the racks may be inverted. The quadrants and racks may be replaced by lever, cam or equivalent mechanism.
Patent GB-717462-A (GB)
Title: Improvements in bonded silicon carbide articles and method of making same
Filed: 1952-10-29
Abstract: A shaped granular silicon carbide body interstitially contains zirconium carbide and boron carbide fused to one another and to the silicon carbide.  Silicon carbide can also be present in the interstitial mass.  The body is made by shaping a mix of the silicon carbide and a temporary binder, e.g. lignone, drying, heating, with a mixture containing the carbides of zirconium and boron and possibly silicon carbide, in an inert atmosphere to a temperature at which the carbide mixture fuses and impregnates the pores of the body.  The products may be used, as grinding wheels &c. for abrasive purposes. The carbide impregnant can also be formed by heating a mixture of the carbides of silicon and boron with zirconia and carbon.
Patent GB-1348579-A (GB)
Title: Rolling mills
IPC: B21B17/14
Filed: 1971-04-19
Abstract: 1348579 Rolling mills FRIEDRICH KOCKS 19 April 1971 [16 April 1970] 27261/71 Heading B3M A multi-stand rolling mill comprises at least two interchangeable rows 10, 12 of stands 16, 16<SP>1</SP> only one row being in a rolling line at any one time, wherein rollers of a first diameter are transferred progressively from the last rolling stage 1 of row 10 to the first rolling stage 8, the rollers being refinished at each transfer, and the worn rollers from stage 8 are refashioned to a smaller second diameter and used in a similar manner in roller 12. Each stand 16 or 16<SP>1</SP> contains three disc-like rollers which define a sizing gap, and the rollers are refinished and transferred without removing them from their stands. The stands 16<SP>1</SP> are geared to produce the same peripheral roller speed as the corresponding stands 16.
Patent GB-1435497-A (GB)
Title: Nappy liner
IPC: D04H1/587
Filed: 1972-06-12
Abstract: 1435497 Water-repellent bonded non-woven fabric; testing water repellency JOHNSON & JOHNSON 25 June 1973 [12 June 1972] 27263/72 Headings D1R and D1S A disposable nappy liner comprises a waterrepellent nonwoven fabric having a pattern of holes therethrough and bonded with a water-repellent binder composition. Preferably the binder composition contains a wax, fluorocarbon or silicone water repellent. The fibres are preferably viscose rayon, cotton or polypropylene of length 2 to 5cm and denier 1.5 to 3. The fabric is formed by carding, air laying or wet laying, rearranged by streams of water to form a bundled web having 400 holes per square inch and dewatered by suction. The web is then bonded continuously over the fabric or printed in spaced areas by a rotograve roller. The binder may be a self-crosslinking polyacrylate or vinyl acetate/ ethyl acrylate copolymer, plasticised, crosslinking vinyl acetate, styrene / butadiene copolymer or a copolymer of vinyl chloride, vinylidene chloride or ethylene. The amount of binder is preferably 10 to 30% by weight of the fabric which weighs 15 to 50 g/m<2>. The water-repellent nature of the fabric is tested by placing the fabric over 4 plies of nappy and adding a 25cm diameter plastic disk having a central 1 cm diameter hole. The stem of a funnel is fitted into the hole and 50 ml of coloured water poured into the funnel.
Patent GB-1044356-A (GB)
Title: Improvements in or relating to baskets, panniers, bowls and the like
IPC: B65D6/08
Filed: 1964-07-02
Abstract: 1,044,356. Baskets. I.S.A.P. S.p.A. July 2, 1964 [Feb. 20, 1964], No. 27395/64. Heading A4G. A basket of flexible thermoplastic sheeting has side portions 5 and end portions 7 terminating in rims 6, 8 and the side and end portions have ribs 12, 13 in the form of strips curved outwardly and arranged at right angles to resemble a basket made of interwoven wood strips.
Patent GB-1041666-A (GB)
Title: Apparatus for producing a spatial impression when observing two-dimensional cinematograph pictures
IPC: G03B35/00
Filed: 1963-07-11
Abstract: 1,041,666. Stereoscopic cine apparatus. K. SCHENK. July 11, 1963 [July 11, 1962], No. 27482/63. Headings G2E and G2J. Apparatus for enhancing the stereoscopic effect produced by receiving cine pictures through a pair of spectacles in which one lens absorbs light to a greater degree, say 70-80%. than the other, comprising transparent strips 1, 3 covering the left and right hand edges of the picture which polarize the light such that the superimposed strips pass no light, a polarizing filter 12 in the left lens the same as strip 3 and a polarizing filter 13 in the right lens the same as strip 1. The filters may be linearly or circularly polarized. The axes of the spectacles lenses converge and comprise inclined prisms of 1 to 3 prism dioptres power. This system is said to impart a convergent position to the eyes corresponding to the frame 1, 3, 5, 6 being displaced towards the observer and so to provide an added 3-D effect. The upper and lower strips 5, 6 polarize in the same sense a strips 1, 3, respectively.
Patent GB-893536-A (GB)
Title: Improved socket drive
Inventor: KULL FRANCIS R
IPC: F16B23/00
Filed: 1960-08-09
Abstract: 893,536. Wrenches. STANDARD PRESSED STEEL CO. Aug. 9, 1960, No. 27528/60. Class 61. [Also in Group XXV] In a torque coupling particularly a socket head fastener and wrench, a socket 18 in the head 17 comprises equally spaced peripheral surfaces 19, connected by inwardly bowed surfaces 20 tangential to an imaginary circle 21 having a diaameter x. The radius of curvature of each of the surfaces 20 is substantially equal to the diameter x, and the depth of the socket is less than the diameter x. The wrench &c., 26 has faces 27,28 which co-operate with the faces 19, 20 of the head 17.
Patent GB-882557-A (GB)
Title: Process for dyeing polyamide fibres
Filed: 1960-08-09
Abstract: Polyamide fibres are dyed with 1 : 2-chromium or -cobalt complex compounds of monoazo dyestuffs, which complexes are free from sulphonic and carboxylic acid groups, at a temperature above 100 DEG C., in the presence of one or more polyglycol compounds of the formula <FORM:0882557/IV (c)/1> in which R represents an aliphatic hydrocarbon residue containing 16-22 carbon atoms, p and q are whole numbers and the sum (p+q) is at least 20 and at most 40.  In an example, the polyglycol compound employed is the reaction product of 30 mols of ethylene oxide on 1 mol of a mixture of octadecylamine, arachidylamine and behenylamine, the dyebath also containing ammonium sulphate.
Patent GB-675932-A (GB)
Title: Improved process for coating fabrics with cellulose
Inventor: STANTON WILLIAM RONALD
IPC: D06M15/05
Filed: 1950-11-13
Abstract: 675,932. Coating webs. TEXTUFF, Ltd. Nov. 13, 1950, No. 27645/50. Addition to 611,275. Class 140. In the process for coating a knitted or woven fabric with cellulose as described in the parent Specification, there is provided a continuous process of withdrawing part of the bath of regeneratable cellulose solution, filtering it and returning it to the coating bath. The process may also include passing the fabric through a hot aqueous bath prior to entering the coating bath, as described in Specification 664,157. The fabric 1 is passed through a steam chamber 2, an aqueous bath 3, a bath of regeneratable cellulose solution 5, an acid coagulant bath, and may be subsequently washed, dried, edgetrimmed and reeled in a continuous process. The bath 5 is provided with four wire screens 32, 33, 34, 35 to form three interconnected compartments 37, 38, 39. The regeneratable cellulose solution 6 is circulated continuously from the compartment 39 through the filter 16, pump 15 and a second filter 17 back to the compartment 39 by way of a pipe 40. The fabric leaves the bath 5 through an adjustable slot 7 comprising a vertically movable top part 50 provided with a counter-balance weight 49, the weight of which is so adjusted that a slub in the fabric can lift the top part 50 to allow the slub to pass through and the top part will then resume its original position. Specification 306,586, [Class 140], also is referred to.
Patent GB-279136-A (GB)
Title: Manufacture of aromatic mercaptans
Filed: 1927-10-18
Abstract: 279,136. I. G. Farbenindustrie Akt.- Ges. Oct. 18, 1926, [Convention date]. Aromatic mercaptans. - Mercaptans of the general formula R.SH (where R stands for a substituted or non-substituted benzene or naphthalene residue) are obtained by causing substituted or non-substituted diazo-aryl compounds to act upon a more highly sulphurized metal than a metal disulphide and reducing the product of the reaction. The diazo-aryl compound should contain no groups which would make the reaction product soluble in the reaction mixture such as carboxyl, sulphonic or hydroxy group. An alkali, for instance an alkali carbonate or bicarbonate or an alkali silicate, or a catalytically acting metal or metal compound (copper, or copper salt) or both may be added. In examples, 5-chlor-2- amino-1-methylbenzene is diazotized. neutralized and then run into a heated sodium polysulphide solution; any sulphur which separates is removed, and the oil is reduced to the mercaptan, which may be converted, without previous purification, into the corresponding arylthioglycollic acid by chloracetin acid. Sodium carbonate and a concentrated solution of copper sulphate may be added to the polysulphide solution before the diazo solution is run in, or calcium polysulphide solution may be used.
Patent GB-1286347-A (GB)
Title: Merocyanine dyes and photographic emulsions containing them
IPC: C09B23/00
Filed: 1970-06-09
Abstract: 1286347 Sensitized silver halide emulsions EASTMAN KODAK CO 9 June 1970 [16 June 1969] 27737/70 Heading G2C [Also in Divisions C2 and C4] Silver halide emulsions are sensitized with dyes of the formula:- wherein n is 1 to 4, k is 1 or 2, Z completes a heterocyclic nucleus e.g. a lepidine, indole, benzolhiazol benzoxazole, benzo selenazole or benzimidazole nucleus which may be substitute by alkyl or chloro groups, R<SP>1</SP> is alkylene, R<SP>2</SP> and R<SP>3</SP> are alkyl 2 to 12 C, phenyethyl or dodecyl benzyl, aryl or complete a 5 or 6-membered heterocyclic ring e.g. a morpholine, piperidine 1 deca and tetrahyalro quinoline, pyrazine, pyrrolidine or pyrroline ring, and Q completes a rhodanine or 2-thiobarbituric acid nucleus which may be substituted by alkyl groups. The dyes are prepared by the usual condensation methods.
Patent GB-319497-A (GB)
Title: Improvements in or relating to potato cutting or chipping machines
IPC: B26D3/18
Filed: 1928-09-28
Abstract: 319,497. Procter, E. W., and Procter, E. A. Sept. 28, 1928. Cutting and slicing vegetables.-In a machine for cutting potatoes or other vegetables into chips, in which the vegetable is pressed on to intersecting knives by a slotted die borne on a carrier actuated by a hand lever through the medium of a cam, the carrier is automatically restored to its original position by a spring on a lever formed integrally with a slotted cam in the slot of which runs a roller connected by links with a roller on the carrier on which the outer surface of the cam bears. Sleeves h integral with a carrier i bearing a, slotted die j slide freely on guide rods g mounted on the base a, the slots in the die corresponding with knives x. A hand lever r, pivoted to the standard at t, is integral with a slotted cam n the outer surface of which travels on a roller m mounted on the carrier i. A weight or anchored spring w is attached to an extension u of the lever and cam, the action of which restores the carrier to its original position after each cutting operation through the medium of a roller o in the slot of the cam, connected to the spindle of the roller m by links q.
Patent GB-480658-A (GB)
Title: Process for the production of alloys of aluminium with calcium
IPC: C22B5/04
Filed: 1937-10-13
Abstract: Aluminium-calcium alloys containing up to 50 per cent of calcium are made by the reaction of a mixture of aluminium in ingot form and briquettes composed of burnt lime and aluminium granules, preferably in such proportions as to yield a calcium aluminate slag having the lowest melting point, and containing lime and alumina in approximately equal proportions.
Patent GB-1103153-A (GB)
Title: Grenade launcher
Inventor: ROY ROBERT EARL
IPC: F41C27/06
Filed: 1966-06-22
Abstract: 1,103,153. Grenade launcher. COLTS Inc. 22 June, 1966, No. 27879/66. Heading F3C. A grenade launcher comprises a housing 10 attached to the barrel 16 of a rifle by means of mountings 18, 20, the mounting 18 abutting a shoulder adjacent the rear end of the barrel to take the recoil of the launcher. Within the housing 10 is mounted, for relative guided movement thereto, a barrel 12 about the rear end of which a grip member 70 is pivoted. The barrel 12 is locked in its retracted position within the housing 10 by a locking lug 86 on the grip member 70 engaging within a recess 84 in the housing. The housing is further provided with an opening (88), (Fig. 2, not shown), through which a grenade cartridge 14 is passed while the barrel is in its extended position to load the launcher. The extension is effected by pivoting the grip member 70 anticlockwise to unlock the lug 86 and then urging the grip member forwardly. The grip member is held in its unlocking position by means of a spring-loaded plunger assembly 96, 106, another part 100 of the assembly bearing on the grip member pivot-pin to hold this pin in place. The cartridge 14 is held within the barrel by a spring-loaded plunger 112. The firing mechanism of the grenade launcher comprises a firing-pin 164 held in an inoperative position or a cocked position by the co-operation of a spring-loaded sear 200 with one of two shoulders provided on the firing-pin. The firing-pin 164 is cocked by exerting manual force on a firing-pin button 194 and released for firing by the manual depression of a sear button 218 connected to the sear. The sear button 218 is shielded normally by a spring-loaded, hinged cover 219. A cartridge extractor consists of a leaf spring 132 the forward end 134 of which is rearwardly curved to engage the rim 142 of the cartridge. The housing 10 and the barrel 12 are held in any of their relatively extended positions by means of a spring 128 which is mounted on the housing 10 and bears frictionally upon the barrel 12. In a modification (Figs. 7 to 9, not shown), the sear is rotatable to release the firing-pin and the trigger is mounted adjacent the trigger of the rifle to which the grenade launcher is attached, the trigger being connected to the sear by means of a linkage.