baber/WOPTO huggingface dataset:
Patent GB-621715-A (GB)
Title: Improvements in and relating to sharpening steels for cutlery
IPC: B24D15/08
Filed: 1947-02-21
Abstract: 621,715. Sharpening - steels. GOODENOUGH, W. Feb. 21, 1947, No. 5138. [Class 60] A sharpening - steel, or an attachment therefor, comprises one or more winged projections 5 having one or more slots 6 or steps, each of which forms a firm seat and guide for receiving the rear edge of a blade while it is drawn across the steel and is so proportioned as to ensure an efficient sharpening angle between the cutting edge and the steel. The projection 5 may be formed on a tube 1, Fig. 3, which is provided with a handle 2 and a wing-nut 4 for securing the steel 3. A lip 8 is used when sharpening scissors. In the form shown in Fig. 5, the tube 1 is secured on the steel 3 and has slots 6 in the opposite edges of the wing 5. Alternatively, a flat plate with a series of slots for the blade may be attached to one face of the tube 1, or two similar flat plates, each with a series of steps thereon, may be secured to opposite faces of the tube. The attachment may also be barrelshaped, Fig. 10, and have supports 8 for resting on a table.
Patent GB-1498036-A (GB)
Title: Ventilating grilles
IPC: F24F13/14
Filed: 1975-02-05
Abstract: 1498036 Ventilators ROYAIR Ltd 5 Feb 1975 [5 Feb 1974] 05184/74 Heading F4V The blades 2 of a ventilating grille are mounted in opposite walls 3 of a frame 1 by spigots 4, a retaining piece of piano wire 6 being threaded between alternate spigots to frictionally hold the blades in their adjusted postions and at least one spigot in each wall is formed with an abutment 4<SP>1</SP> at its face end transversely to the spigot-axis in the direction of the wire to prevent it from slipping thereoff. The free ends of the wire are clamped in tensioned condition of the wire by lugs or tongues cut or stamped out of the frame member.
Patent GB-598166-A (GB)
Title: Improvements in or relating to photography
IPC: G03C5/30
Filed: 1944-03-21
Abstract: 2-Phenylpyrimidazolium chloride acethydrazide is prepared by adding ethyl chloracetate to 2-phenylpyrimidazole, and treating with hydrazine.  2-Benzthiazolylhydrazine is prepared by heating together 2-chlorobenzthiazole and hydrazine hydrate.  b -Benzoylacethydrazidopyridinium chloride is prepared by reacting N-acethydrazidopyridinium chloride (Girard's Reagent P) in pyridine with benzoyl chloride.  The di-acetone and glucose derivatives of Girard's Reagent P may be obtained by heating the reagent with acetone or glucose in presence of a solvent.  Malonyl dihydrazidopyridinium bromide is prepared by refluxing together pyridine, ethyl bromomalonate, and alcohol, and treating with hydrazine hydrate.  Malonyl dicarbohydrazidopyridinium bromide and acetcarbohydrazidopyridinium chloride are similarly prepared using ethyl hydrazine carboxylate.  b -Phenylacethydrazidopyridinium chloride is prepared by adding phenylhydrazine to an alcoholic solution of the addition product from pyridine and ethyl chloracetate. Benzyldimethylacethydrazidoammonium chloride is similarly prepared.  Aconitic trihydrazide is prepared by refluxing together ethyl aconitate, hydrazine hydrate, and ethyl alcohol.  4 - (41 - Chloro - 21 - methylphenyl) - semi-carbazide is prepared by refluxing together 2-amion-5-chlorotoluene, nitrourea, and ethyl alcohol, adding hydrazine hydrate and further refluxing. 4-(P-Chlorophenyl)-semicarbazide is prepared similarly.  N - Methyl - 2 - carbohydrazidopyridinium p-toluenesulphonate is prepared by refluxing together ethyl picolinate, methyl p-toluenesulphonate, and alcohol, adding hydrazine hydrate, and further refluxing.  The acetone derivative of acetcarbohydrazidopyridinium chloride is prepared by refluxing together an alcohol solution of acetcarbohydrazidopyridinium chloride, acetone, and acetic acid. The acetone derivative of benzyldimethylacethydrazidoammonium chloride is similarly prepared.  Triphenylphosphonium chloride acethydrazide is prepared by refluxing together triphenylphosphine, ethyl chloracetate, and alcohol, adding hydrazine hydrate, and further refluxing.
Patent GB-124565-A (GB)
Title: Improvements in or relating to Vehicle Wheels.
Inventor: HOLLIS OTIS ALLEN
IPC: B60B15/16
Filed: 1918-03-26
Abstract: 124,565. Hollis, O. A. March 26, 1918. Slipping - preventing attachments to wheels; tyres, non-elastic.-The tyre of a vehicle wheel particularly applicable to agricultural tractors is built up of two series of hollow blocks 9, 10 of different widths having openings extending from the outer to the inner wheel periphery, and is fitted with extensible gripping tubes or members 16 capable of individual or collective radial adjustment. This adjustment may be effected bv revolving the tubes 16 on screw bolts 17 attached to the hub by bolts 18. The hollow blocks are clamped to the rim 8 by a pair of rings 11, 12 secured by bolts 13 and formed with wedges 14<a> engaging bevelled edges 14 on the blocks 9, 1C.
Patent GB-230078-A (GB)
Title: Improved method of and apparatus for boring holes in rock and other material
IPC: E21B7/16
Filed: 1925-02-26
Abstract: 230,078. Sulzer FrÞres Soc. Anon. Feb. 27, 1924, [Convention date]. Jet apparatus.-In boring rock &c. by abrasive material conveyed at high speed by water under pressure, the abrasive material is introduced into the jet of water from within the latter at or near the point of advance and in the same direction as the jet; the jet is of such shape that the abrasive material must pass through it before escaping outwards. In Fig. 1, water emerges from the pipe 1 in a single jet and the abrasive material 3 is carried with it. In Fig. 2, several jets 2 are provided, the abrasive medium 3 being supplied through passages 4 between the jets. The jet or jets may be of circular, square, annular or other section.
Patent GB-194911-A (GB)
Title: Improvements in heels
IPC: A43B21/34
Filed: 1922-02-23
Abstract: 194,911. Haddan, R., (Cinderella Heel Corporation). Feb. 23, 1922. Heels.-A hollow, detachable heel-unit is secured 'by engagement with a projection, or projections, on a fixed plate-unit attached to a shoe, relative movement being prevented by brads passing through the heel at the waist. A hollow heel 1, Fig. 4, is provided with recesses 4, engaging projections 5 carried by an attaching-plate 6 nailed to the shoe at 9. Around the plate 6 is a retaining-plate 22, Fig. 3. First, the plate 22 is placed against the shoe. The plate 6 is then nailed in place, and the heel is engaged with the projections 5. Brads 10, Fig. 5, are then passed through openings in the heelbreast, retaining-plate 22, and into the shoe. The tread-lift 11, Fig. 4, is preferably of rubber and is retained by a screw 14. In a modification, Fig. 7, a single lug 29 on a curved plate 28 fixed to the shoe engages a slot 27 in the detachable heel, lugs 33 act for positioning the heel and the plate before fixing. Brads 42 prevent lateral movement of the heel. A wearing- lift 37, Fig. 10, may be nailed to or integral with a plug 35 engaging a roughened surface 36 in the lower part of the heel. In a slight modification of the attachment shown in Fig. 7, the lug 29 has a hole midway of its length which engages a projection from the side of the heel when the lug springs into place. In another modification, Fig. 13, the lug 29 is carried by a plate 28 having projections 45 which pass through the sole and are turned over.
Patent GB-355213-A (GB)
Title: Improvements in the treatment of basic or acidic substances produced by destructive hydrogenation
IPC: C07C37/72
Filed: 1930-02-18
Abstract: The mixtures of phenols, phenols and bases or bases obtained by the destructive hydrogenation of coal are separated into their constituents with the aid of petroleum ether with the employment of low temperatures.  In examples (1) crude phenol isolated from a petrol produced by the destructive hydrogenation of coal is freed from colouring matter and associated phenolic impurities; (2) a phenolic fraction containing cresol, xylenols and higher boiling phenols derived from the destructive hydrogenation of coal is treated to separate the cresol; (3) a mixture of phenol and o-cresol derived from the destructive hydrogenation of coal is separated; (4) and (5) a mixture of iso-quinoline and quinoline derived from the destructive hydrogenation of coal is separated.
Patent GB-262375-A (GB)
Title: Improvements in pivotal joints for chains and the like
IPC: A44C5/10
Filed: 1926-02-25
Abstract: 262,375. Mirra, A. Dec. 1, 1925, [Convention date]. Pinless hinges.-Chains are made up by interlinking a number of similar links of the shape shown in Figs. 1 and 2 by bending the wings 2 of the links about the lines a, a over the wings of adjacent links to form a hinge connection as shown in Fig. 6. The wings 2 are bent down on the same side of the strip 1 and connected together by solder to form links of uniform width. A stud 5, Fig. 9, may be provided on each link to engage a co-operating slot 6 in the wing of the adjacent link. The members 4, Fig. 8, of an article such as a bracelet or necklace, may be linked together by soldering the links in slots cut in the edges of the members, the depth of the slot being so arranged that the members pivot about a point at the level of the outer faces of the numbers.
Patent GB-1058550-A (GB)
Title: Compositions containing polyvinyl compounds
IPC: C08K5/103
Filed: 1965-12-22
Abstract: 1,058,550. Polymerizable plasticizers for polyvinyl chloride. EASTMAN KODAK CO. Dec. 22, 1965 [Dec. 29, 1964], No. 54250/65. Heading C3P. [Also in Division C2] A composition comprises polyvinyl chloride and a methacrylate ester of 2,2,4-trimethyl- 1,3-pentanediol or 2,2-dimethyl-1,3-propanediol. Plasticizers, fillers, extenders and other conventional ingredients may be added. The composition preferably contains a free radical catalyst such as tertiary butyl peroxide or perbenzoate to aid curing.
Patent GB-307061-A (GB)
Title: Improvements in or relating to technically pure cro
IPC: C01G37/033
Filed: 1929-02-18
Abstract: 307,061. Metals Protection Corporation, (Assignees of Humphries, C. H.). March 3, 1928, [Convention date]. Chromium, depositing. - Crude dry chromic acid containing say 1.5-0.15 per cent SO3 is admixed with an amount of a reactive barium compound such as the hydrate, carbonate, or chromate chemically equivalent or less than chemically equivalent to the sulphate present, whereby on dissolving the mixture in water a solution free from or containing a predetermined amount of sulphuric acid is obtained, which is suitable for use in making up electrolytic baths for chromium plating. The prior use of nitric acid followed by a saturated solution of chromic acid for removing the sulphate is referred to.
Patent GB-1154753-A (GB)
Title: Improvements in Cutting Tools
IPC: B23B27/16
Filed: 1967-02-06
Abstract: 1,154,753. Cutting tools. GENERAL ELECTRIC CO. 6 Feb., 1967 [24 March, 1966], No. 5521/67. Heading B3T. A cutting tool comprises a shank 10 having a recess 14 at one end thereof for an indexable invertible cutting insert 16, the recess being defined by a base 22 and a side looking shoulder 20 angularly related to each other, the insert being mounted in the recess 14 by a pin member 26 and carried on a seat 18 secured to the base of the insert by a screw 24. The insert has spaced parallel sides 32 and peripheral surfaces 34, 36, 38 the junction between the side faces 32 and the surfaces 36, 34, forming cutting edges 40, 42, and 44, 46 respectively. Recesses 48, 58 are formed in the respective sides 34, 36 so that when the insert is clamped within the shank recess 14 one of the insert recesses co-operatively engages with the seat 18, with a raised surface 28. The cutting edges are positioned on the raised portions 60, 62, 50, 52 of the insert created by the recess formation on the sides 34, 36.
Patent GB-452640-A (GB)
Title: Improvements in or relating to jars, bottles and the like containers
IPC: A45D40/00
Filed: 1936-02-25
Abstract: 452,640. Jar &c. covers. BARNES, R., 60, Lawson Road, Marton, Blackpool. Feb. 25, 1936, No. 5580. [Classes 125 (i) and 125 (iii)] The cover of a jar &c. for a hair preparation is formed with a slot 13 through which a comb can be passed, a block 9 of resilient material such as spongy rubber, in which is formed a slit 6 which is normally closed but is in register with the slot 13 when opened by the comb, being provided at the underside of the cover. The block may, as shown, be attached to a disc 10 having a slot 11 in register with the slot 13. The cover may be fixed or removable, and the slot therein may be closed by an adhesive label before use.
Patent GB-1528235-A (GB)
Title: Process for the production of a colour photographic image
IPC: G03C7/30
Filed: 1976-02-13
Abstract: 1528235 Producing transparent colour photographic image AGFA-GEVAERT AG 13 Feb 1976 [15 Feb 1975] 05729/76 Heading G2C A transparent colour photographic image of an original is produced by (1) imagewise exposure, behind the same original, of two parts of the same colour photographic material containing at least one colour coupler containing silver halide emulsion layer in a predetermined amount on a transparent support, to produce two latent images of the original with identical dimensions, (2) processing the latent images to produce visible colour images with identical dimensions, but with a maximum colour density corresponding to 50-55% of a required total maximum density, and (3) superimposing the two colour images in register with one another to form a single, transparent colour photographic image with the required total maximum density. This process enables colour transparency material and colour paper to be simultaneously processed in the same processing operation using the same processing baths.
Patent GB-511789-A (GB)
Title: Improvements relating to moulding presses
IPC: B29C45/70
Filed: 1938-02-23
Abstract: 511,789. Injection-moulding. SMITH, W. H. Feb. 23, 1938, No. 5730. [Class 87 (ii)] The mould halves or dies 5, 6 of an injectionmoulding machine are carried by platens 3, 4 movable on upright guide rods 2. The lower platen is raised by double toggle mechanism 8, 10, 12 operated by an hydraulic or pneumatic plunger in a cylinder 16 and raises the upper platen against screw stops 22 and into engagement with the nozzle 21 of a chamber 24. A plunger 23, operated by a piston 25 and provided with a drip-cup 28 for catching water escaping past the packing for the piston rod, forces plastic material from the chamber 24 into the mould formed by the parts 5, 6. The supply of water or air to the cylinder 16 and the cylinder for the piston 25 is controlled from a single source by a hand-operated pistonvalve device 17.
Patent GB-230814-A (GB)
Title: Artificial denture
IPC: A61C13/00
Filed: 1925-03-02
Abstract: 230,814. Nies, F. H. March 17, 1924, [Convention date]. Teeth, artificial.- Porcelain teeth of the kind adapted to be connected to vulcanite or like dentures at their basal portions and provided with an anchor member, are formed with deep sockets to receive tubular anchor posts provided with flanges which become embedded in the vulcanite and are spaced from the base of the tooth. A tooth A having the usual concave basal surface is formed with a deep socket H to receive a loose tubular post D having a flange E which may be flat or curved to correspond with the curvature of the end of the tooth. The flange may be continuous, but is preferably slotted to form sections F, some of which, or one edge of the continuous flange, may be bent down to engage the base of the tooth and so hold the post in position with the remainder of the flange spaced from the tooth. The recess H may be deeper than is necessary to accommodate the post. The post may be drawn or rolled, and the flange may be formed initially thereon, or the end of the tube may be split longitudinally and the sections bent to form the flange members. Slots I may be formed at the incisal end of the post to facilitate the flow of rubber or cement in the socket H. In a modification, Fig. 5, a head L and legs J, K are stamped from sheet metal and the legs bent as shown to constitute a split tubular post. In all forms the incisal ends of the posts may be flared as shown in Fig. 5.
Patent GB-1527761-A (GB)
Title: Directional couplers
IPC: H01P5/18
Filed: 1975-02-11
Abstract: 1527761 Directional couplers DEFENCE SECRETARY OF STATE FOR 26 Jan 1976 [11 Feb 1975 10 March 1975] 5839/75 and 9920/75 Heading H1W A directional coupler comprises a pair of interdigitated comb-lines 4, 5 arranged on one side of a substrate 1 which bears an earth plane 2 on the other side. Electromagnetic coupling exists predominantly between the fingers. For symmetrical combs (l 1 =l 2 ), energy transfer is sinusoidally periodic in length (L) at a given frequency and periodic in frequency for a given length. The transfer varies between total and zero. A 3 db. coupler may be obtained by proper choice of L, l 1  and l 2  (l 1 Œl 2 ). The outputs are in quadrature. A further substrate and earth plane may be added to produce a triplate construction.
Patent GB-1350020-A (GB)
Title: Rotary piston machines having sealing means
IPC: F01C19/10
Filed: 1972-02-08
Abstract: 1350020 Rotary positive displacement machines MONARK-CRESCENT AB 8 Feb 1972 [8 Feb 1971] 5861/72 Heading F1F A rotary piston machine comprises apex seals 4 and side seals 7 in a piston 1, the apex seals 4 having their ends cut to permit coupling members 6 to be inserted in the ends of the apex seal grooves, a space 16 being left between each seal 4 and the respective coupling member 6 and the side seals 7 simultaneously sealingly engaging both the apex seals and members 6. A spring 13 urges the apex seal outwardly and also the members 6 outwardly. The spring preferably only engages the seal 4 and members 6, but not the groove Fig.3 (not shown), and the spring may be fixed to the apex seal and coupling members by clamps integral with the spring Figs.4, 5 and 6 (not shown). The groove can be V-sectioned Fig.7 (not shown), and the side seals specially widened where they engage the apex seals and coupling members Figs.8, 9, 10 (not shown). Also described is an embodiment having a U- shaped groove and twin, parallel, side seals Figs. 11 and 12, (not shown).
Patent GB-471157-A (GB)
Title: Improvements in photoelectric devices and electric contact rectifiers of the barrierlayer type
IPC: H01L21/108
Filed: 1936-02-27
Abstract: 471,157. Light-sensitive cells; rectifiers. GENERAL ELECTRIC CO., Ltd., JOHNSON, W. A., and TURNER, H. C. Feb. 27, 1936, No. 5887. [Class 40 (iii)] [Also in Group XXXVI] In making a photo-electric'device or electric contact rectifier of the type having a selenium electrode and a metal electrode separated by a barrier layer, the selenium electrode is coated with selenium dioxide. A base plate provided with a layer of selenium in the metallic form (e.g. as described in Specification 465,760) may be taken, and a mixture of selenium dioxide and selenium sublimed thereon in a closed oven. After cooling, a conductive layer is added, for example by sputtering gold or platinum on to the surface of the sublimed material.
Patent GB-1041906-A (GB)
Title: Process for the production of chlorinated derivatives of pyridine
Inventor: CORRAN JOHN ANTHONY
IPC: C07D213/61
Filed: 1964-02-12
Abstract: Substituted pyridines containing one or more chlorine atoms on the pyridine ring are made by heating pyridine, or a substituted pyridine in the vapour phase at an elevated temperature with chlorine in an amount of more than 2 moles of chlorine per mole of pyridine. Preferred proportions of pyridine are 2.5-6 moles per mol of pyridine.  Suitable temperatures are those in the range 200-500 DEG C.  The reactants may be diluted with inert inorganic or organic diluents.  It is preferred to effect the reaction in the presence of a porous material, e.g. silica, alumina or carbon, in the form of a static or fluidized bed.  Specified substituted pyridine reactants are halogeno- and alkyl-pyridines. With certain alkyl pyridines elimination of the alkyl group may occur during chlorination. Examples describe the preparation of penta-, tetra-, tri-, di- and monochloropyridines.  Reference has been directed by the Comptroller to Specification 991,526.
Patent GB-556653-A (GB)
Title: Improvements relating to the processing of cheese
IPC: A23C19/16
Filed: 1942-05-05
Abstract: 556,653. Cheese. WINGFOOT CORPORATION. May 5, 1942, No. 6040. Convention date, Nov. 1, 1941. [Class 84] [Also in Group XVII] Relates to a method of packaging cheese which may also include wholly or in part the step of curing or ageing the cheese. The invention consists in enclosing a rindless cheese in a limp oil-resistant wrapper then filling a rigid container with the wrapped cheese, and finally pressing the wrapped cheese into the container to remove as much as possible of the air from the container. The cheese may be in the form of a single block or a number blocks 2 and before wrapping, the cheese is heated until it exudes oil, or the oil may be applied to the surface in any suitable manner. The wrapper is preferably made of rubber hydrochloride film, but metal foil or films of regenerated cellulose or of vinyl derivatives may be used. A number of blocks of cheese are then wrapped in ordinary paper and placed in a rigid wooden box 1 in which the package fits tightly. The package is made air tight by pressing the blocks together by means of the lid of the box, but a slip-in cover 6 which fits within the side walls of the box may be used to apply the pressure.
Patent GB-634000-A (GB)
Title: Improvements in or relating to underjet coke ovens
IPC: C10B21/10
Filed: 1945-05-30
Abstract: 634,000. Coke ovens. KOPPERS CO., Inc. May 30, 1945, No. 6115/48. Convention date, May 8, 1944. Divided out of 604,211. [Class 51 (ii)] [Also in Group XIII] In an underjet coke oven battery having a regenerator flow box in which separate reversing valves are provided for flowing a combustion medium and combustion products respectively into and from the regenerator face end of a regenerator sole channel of the battery, said valves are located below the battery supporting mat with the inlet for the combustion medium arranged to receive said combustion medium for the battery underfiring from accessible passageways of the battery basement. As applied to an underjet coke oven battery of the type disclosed in Specification 604,211 the regenerator flow boxes 21 and 26 have horizontal limbs communicating with wide and narrow regenerators 19 and 25 respectively through regenerator sole channels 20 disposed above the battery supporting mat 17, and bifurcated vertical limbs communicating with the waste heat duct 24 through a branch 42 controlled by a valve 46 and with the battery basement 22 for the supply of air through the branch 43 controlled by a valve 47, said valves 46 and 47 having their shafts so interconnected by levers in said basement to known reversing mechanism as to ensure that they open alternately. Additional control in the duct 42 is given by a further damper 44 operated by a crank handle 45. The flow boxes 21 that are associated with the large regenerators 19 are connected by pipes 50 to a lean gas main 23, valves in said pipes being actuated by a cable 51 of the reversing mechanism and a clutch connection in the lever system controlling the valves 46 and 47 ensures that when the lean gas is being supplied to the regenerators the air valves 47 are closed.