baber/WOPTO huggingface dataset:
Patent GB-838570-A (GB)
Title: Improvements in and relating to drill bits and drilling
IPC: E21B10/48
Filed: 1958-02-24
Abstract: 838,570. Boring earth &c. DRILLING & SERVICE Inc. Feb. 24, 1958 [March 8, 1957], No. 5865/58. Class 85 An earth boring drill bit comprises a hollow threaded shank 11 (Fig. 1) and an integral enlarged body portion 12 which is generally triangular in shape and has three cylindrical cutting faces 16 joined by hands 14. The three cutting faces curve inwards to form an end cutting face 20 at the centre of which is a conical recess 19. The whole of the cutting face is set with diamond abrading elements 42. A duct 22 leads from the hollow shank to the end cutting face and feeds drilling fluid to four primary passages 26, 26, 32 and 34. Each of the passages 26, 26 and 34 leads to one of the cylindrical surfaces 16 and has lateral passages 28, 30, 36 and 38 leading off it to distribute the drilling fluid over the external and internal cutting faces and lands. The fourth primary passage 32 directs additional fluid into the conical recess. The cross-sectional area of the primary passages is reduced after each lateral passage leads off by an amount approximately equal to the crosssectional area of the lateral passage. Material abraded in the conical recess is discharged through the opening 40. In a modification (Fig. 7) the drill is converted to a core bit by modifying the conical recess 19 to a parallel sided axial holepassing through the bit and lined with diamond abrading elements 72. Drilling fluid grooves 62, 64, 66 and 68 are provided.
Patent GB-127223-A (GB)
Title: A Process of Manufacture of 2-aminoanthraquinone.
Inventor: IMRIE HENRY
IPC: C07C225/34
Filed: 1919-03-10
Abstract: 127,223. Imrie, H., (Geigy Soc. Anon, J. R.). March 10, 1919. 2-Aminoanthraquinone is prepared by heating under pressure anthraquinone-2-sulphonic acid with ammonia in presence of calcium chloride together with ammonium, sodium, or magnesium chloride or a mixture of these chlorides.
Patent GB-667061-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J25/30
Filed: 1948-02-27
Abstract: 667,061. Holders for discharge tubes. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948 [Sept. 21, 1945], No. 5965/48. Class 38 (i). [Also in Group XL (a)] A cavity resonator, Fig. 2, comprises two equal parts 43, each having friction fingers 47 and 48 whereby the resonator is telescopically attached to the external portions 32, 33 and 30, 31, Fig. 1, of two cylinders 17 and 19 which form grid supporting elements in a radial-type velocity-modulated reflex tube 10 (see Group XL (a)). Cooling may be effected by forcing air through the slits 47 between the fingers 41 and allowing it to escape through the slits 48 between the fingers 42. In Fig. 1, the length of the cylinder 17 is such that it would obscure the slits 47 but in a practical embodiment employing this type of cooling the length of the slits 47 and of the cylinder 17 would be such that the slits extend a little beyond the contact surface of the fingers 41 and the cylinder. Additional cooling may be obtained by using external fans.
Patent GB-1148189-A (GB)
Title: Improvements in and relating to thermosetting compositions for electrodeposited coatings
Inventor: JONES DAVID VERNON HUDSON
IPC: C09D125/02
Filed: 1967-02-08
Abstract: 1,148,189. Blends of copolymer salts. COATES BROS. & CO. Ltd. 23 Jan., 1968 [8 Feb., 1967], No. 5978/67. Heading C3P. [Also in Division C7] A composition comprises (A) a salt with a volatile base of a copolymer of monoethylenically unsaturated compounds, the copolymer having pendant hydroxyl and carboxyl groups, (B) a salt with a volatile base of a copolymer of monoethylenically unsaturated compounds, the copolymer having pendent carboxyl and N- methylol and/or N-alkoxymethyl amide groups, and (C) a solvent which is partly or wholly miscible with water. Component (A) may be obtained by copolymerizing an unsaturated acid with an unsaturated alcohol or hydroxyalkyl ester of an unsaturated acid or by aftertreatment of a copolymer of an unsaturated acid with an epoxide or polyol. Component (B) is suitably obtained by reacting formaldehyde and, optionally, an alkanol with an acrylamide or methacrylamide copolymer with an unsaturated acid. In the examples component (A) is a copolymer of methyl methacrylate, butyl acrylate, 2-hydroxyethyl acrylate and acrylic acid dissolved in ethylene glycol monobutyl ether and in the form of a salt with triethylamine, while component (B) is a copolymer of methyl methacrylate, butyl acrylate, ethyl acrylate, acrylamide and acrylic acid in the form of a salt with dimethyl-ethanolamine, after-treated with paraformaldehyde and either sec-butanol or n-butanol, and dissolved in either sec-butanol or n-butanol and ethylene glycolmonobutyl ether. These components are mixed, together with titanium dioxide pigment and water to form electrodepositable coatings which may be cured by heating.
Patent GB-1027781-A (GB)
Title: Stabilisation of vinyl polymers with novel organo tin compounds
Inventor: OAKES VINCENT
IPC: C08K5/58
Filed: 1963-02-14
Abstract: Organotin compounds suitable for use in stabilizing vinyl resins (see Division C3) are prepared by the reaction of a dialkyltin oxide, hydroxide or dihalide with an ester of pentaerythritol, or dehydration product of pentaerythritol, or triol such as trimethylolpropane or glycerol, and a mercapto-acid such as mercapto-acetic or mercapto-propionic acid, or a mixture of a mercapto-acid and an alkyl carboxylic acid.  The ester is prepared by conventional means, e.g. by removing water azeotropically from the reactants in a suitable solvent.  The amount of acid may be such that some hydroxyl groups remain unesterified. The molar proportion of mercapto-acid is preferably in excess of that of alkyl carboxylic acid when present.  The dialkyl tin oxide or hydroxide may be reacted with the ester by azeotropic removal of water using the solvent in which the ester was formed.  Sufficient dialkyl tin compound may be used to react with all hydroxyl and mercapto groups, yielding a product, for example, of formula <FORM:1027781/C2/1> or a reduced amount may be used, e.g. sufficient to react with the mercapto-groups only.  When the dialkyl tin compound is e.g. the dibromide or dichloride, a base such as ammonia or pyridine is added to the reaction medium, or the sodium salt of the mercapto ester is used.ALSO:Vinyl polymers are stabilized by the incorporation of novel organotin compounds (see Division C2) prepared by the reaction of a dialkyl tin oxide, hydroxide or dihalide with an ester of pentaerythritol, or dehydration product of pentaerythritol, or triol such as trimethylolpropane or glycerol, and a mercapto-acid such as mercapto-acexic or mercapto-propionic acid or a mixture of a mercapto-acid and an alkyl carboxylic acid.  A table comparing the effectiveness of such compounds with the known stabilizer dibutyl tin dilaurate in preventing the discoloration of P.V.C. sheets is given. Such sheets contain 2 parts stabilizer and 0.5 parts stearic acid per hundred parts resin, the ingredients being blended for 5 minutes at 155 DEG  C. before being formed into sheets of 50 thousands of an inch.  The sheets are examined for colour change at 30-minute intervals in an air oven at 185 DEG  C.
Patent GB-915253-A (GB)
Title: Hollow pouring spout, more particularly for disposable containers
IPC: B65D47/32
Filed: 1961-02-17
Abstract: 915,253. Tapping cans &c. MONDIGLIO, A. L. Feb. 17, 1961 [Feb. 17, 1960], No. 6060/61. Classes 21 and 66. A pouring spout particularly for use with metal cans comprises a tubular or channel section member 1 formed at one end with a knife 11, a plate 14 terminating in a second knife 14a and held in place in the member 1 by a U-section member 17; and a resilient sleeve 22 surrounding the end of the member 1. The U-member 17 carries two hooks 24 and knife 14a carries two projections 14b which hold the spout in place on the can. The plate 14, of spring material, is supported in notches 6, 7 and between inwardly projecting tabs 13, 13a on the member 1 by the U-member 17. To insert the spout into a can, Fig. 5 (not shown), the hooks 24 are engaged beneath tne rim of the can and the spout is pivoted about the rim so that the knives 11, 14a perforate the top of the can providing two holes, one for emptying the can and the other for the entry of air. The projections 14b engage the inner surface of the can top (Fig. 10). The spout may be of metal or plastic,
Patent GB-125706-A (GB)
Title: Improvements in or relating to Machine Guns.
IPC: F41A3/78
Filed: 1918-04-10
Abstract: 125,706. Birmingham Small Arms Co., and Norman, G. April 10, 1918. Machine guns.-Relates to automatic machine guns wherein the breech-actuating element during its backward stroke stores power in a return spring, and consists in adjusting the tension of such return spring in situ by a worm gear so arranged that, when the tension of the spring is below normal, this is indicated by a gap between the elements of the worm gear. Fig. 1 shows the invention applied to the flat spiral return spring 1 used in the Lewis gun. The spring is mounted between a hub 15 and an outer barrel 14, the hub being connected by a central screw 16 to an outer casing 2 and the barrel 14 interlocking with a drum 6 having teeth 5 to engage the usual rack 11 on the gas piston-rod 12. The outer casing 2 as usual is attached to the gun casing by a hook 3 and pistol grip 9, and a spring detent 7 is moved by an incline 8 out of engagement with the teeth 5 to free the spring when the casing 2 is applied to the gun. According to the present invention, the screws 16 carries a worm wheel 17, Fig. 3, which is engaged by a worm 21 rotated by a thumb-piece 23 to adjust the tension of the spring. During the tensioning of the spring, the worm shaft 21 has a limited longitudinal movement to the right against the action of a balancing spring 25 and washer 24 so that a gap 33 shows if the tension of the return spring is below normal, this gap being closed when the normal tension is applied. A projection 31 on the thumb-piece engages a recess 32 in the washer 24 and forms a clicking indicator for each revolution of the worm shaft. Graduations 41 mav also be provided on the outside of the worm wheel and a zero mark 40 to indicate normal tension. The casing 2 is provided with an inside lever 34 attached by interrupted ribs and grooves (not shown) and retained in position when the casing is removed from the gun by a projection 38 on the detent 4.
Patent GB-907707-A (GB)
Title: Improvements in or relating to the seaming of heat-sealable plastic film material
Inventor: NICHOLAS DONALD CAMERON
IPC: B29C65/02
Filed: 1958-02-25
Abstract: 907,707. Slitting; seaming. B.X. PLASTICS Ltd. Feb. 23, 1959 [Feb. 25, 1958], No. 6105/58. Classes 31 (1) and 42 (1). A method of seaming together heat-sealable plastic film material, e.g. polyethylene or polyvinyl chloride film material comprises slitting two superimposed layers of such material by means of a heated, rotating cutting- disc, the speed of rotation and temperature, of the disc being such that the overlying cut edges are welded together as a result of their contact with the disc to provide the desired seamed connection between the layers of material. Flat tubes may be formed by superimposing two lengths or webs of the material and performing two seaming steps. Alternatively, a single length or web of the material may be folded and a tube formed by a single seaming step or again a wide tube may be converted into two or more narrower tubes. The tubes may be converted into bags by a further transverse welding and cutting, or perforating, operation to give either discrete bags or a length of connected bags in roll or other stacked form adapted to be torn from the length as required. As shown in Fig. 1, material 10 to be seamed is drawn from a supply reel 11, over a guide support 12, and thence past an axially-adjustable heated rotary cutting disc 1 which extends through the plane of the superimposed layers so that the cut edges on each side of the disc rub against the sides of the disc thus facilitating the welding of the seam. The disc is heated, as it rotates, by a friction pad 7. As an example, the disc is between 2 and 4 inches in diameter, is heated to a temperture between 150‹ and 400‹ C. and rotated at a speed between 2000 and 6000 r.p.m., the linear speed of formation of the seam being between 5 and 50 ft./min. In a modification, the material 10 is drawn past rotary slitting discs 1 located on a readily-removable shaft 29 and over an adjustable guide support 32 by means of a pair of nip rollers 36, 37, the discs each being heated by means 28 comprising a pair of friction pads 66 carried by spring strips 59 secured to a leg 57 axially adjustable on a readily-removable shaft 27, the spacing between the pads 66 being adjustable by rotating a screw-threaded rod 67. The cut widths 50, 51 pass alternately to reeling shafts 44, 45. The disc(s) may alternatively be heated electrically or by radiant heat. The Provisional Specification describes also drawing the disc or discs over the material to be seamed.
Patent GB-180076-A (GB)
Title: Improvements in or relating to cinder sifters or collectors
IPC: F24B15/08
Filed: 1921-02-24
Abstract: 180,076. Taylor, F. Feb. 24, 1921. Shovels.-A combined cinder sifter and shovel for domestic use comprises a shovel blade B, which may be partly perforated, a handle A, and a pair of arms E carrying a sieve C and pivoted on the sides of the shovel blade. The sieve rests on the handle when the ashes are being shovelled up, afterwards being allowed to drop down so that the ashes fall into it and are sifted. The sieve may be made as shown, or of bars soldered together.
Patent GB-905378-A (GB)
Title: Synchronous self-shifting clutches
Inventor: CLEMENTS HERBERT ARTHUR
IPC: F16D23/10
Filed: 1960-02-22
Abstract: 905,378. Ratchet clutches. S.S.S. GEARS Ltd. Jan. 31, 1961 [Feb. 22, 1960], No. 6194/60. Class 80 (2). In a synchro self-shifting clutch wherein movement of an intermediate member 11 along helical splines 12 on a shaft 6, to engage teeth 13 on the intermediate member 11 synchronously with teeth 9 on the other clutch member 1, is initiated by a pawl-and-ratchet mechanism 14 between the clutch member 1 and intermediate member 11, the final stages of engagement of the clutch teeth is cushioned by a dashpot formed by surfaces 16, 17 on the intermediate member 11 and surfaces 18, 19 on, as shown, the clutch member 1 or on the shaft 6. Oil is retained centrifugally in a chamber formed by the closed end of the member 1 and a flange 20.
Patent GB-163163-A (GB)
Title: Improvements in locking fire bars upon grates
IPC: F23H13/00
Filed: 1920-03-01
Abstract: 163,163. Fixter, J. T., and Ridley, T. W. March 1, 1920. Fire-bars and grates.-Fire-bars a are secured in place by locking-bars such as d, Figs. 1 and 2, or e, Figs. 1 and 3. The locking-bars are provided with lugs f by which they are bolted to the frame i.
Patent GB-762690-A (GB)
Title: Improved process for the recovery of synthetic polyester scrap
Inventor: MUENCH WERNER
IPC: C08J11/00
Filed: 1954-03-03
Abstract: Esters of carboxylic acids with low molecular weight alcohols (i.e. containing not more than three carbon atoms) are obtained by dissolving a polyester in a mono- or poly-hydric alcohol which preferably boils at above 100 DEG  C., reacting the solution thus obtained with a low molecular weight alcohol, preferably methanol or ethanol, in an acid or alkaline medium, to effect ester interchange and separating the desired ester from the mixture. The polyester is heated with the mono- or poly-hydric alcohol, preferably the polyhydric alcohol or alcohols used in the polyester, until a clear solution is obtained.  To the clear solution is added the low molecular weight alcohol and the mixture is rendered acid or alkaline.  An alkaline medium is preferred for the ester interchange and is obtained by the addition of, for example, sodium or potassium hydroxide or alcoholates.  The reaction is an equilibrium reaction and the formation of the desired ester occurs the better the less soluble the ester is in the reaction mixture.  An excess of low molecular weight alcohol may be used to increase the yield of a soluble ester.  The ester is obtained from the reaction mixture by filtration or by fractional distillation or crystallization.  In examples: (1) polyethylene terephthalate scrap is dissolved in ethylene glycol or octyl alcohol and the solution reacted with methanol in the presence of sodium methylate, dimethyl terephthalate precipitates and is removed by filtration; (2) as in (1) using ethylene glycol, ethanol and sodium ethylate, diethyl terephthalate being obtained; (3) the polymerized ethylene glycol ester of 4 : 41-diphenylmethane dicarboxylic acid is dissolved in ethylene glycol and reacted with methanol and sodium ethylate, the dimethyl ester of 4 : 41-diphenylmethane dicarboxylic acid being obtained by filtration; (4) as in (1) using polymerized isophthalic acid glycol ester, ethylene glycol, methanol and sodium ethylate, dimethyl isophthalate being obtained by filtration after cooling.
Patent GB-857219-A (GB)
Title: Radioactive isotope production
IPC: G21J3/00
Filed: 1959-02-24
Abstract: 857,219. Producing radioactive substances. ESSO RESEARCH & ENGINEERING CO. Feb. 24, 1959 [March 21, 1958], No. 6312/59. Drawings to Specification. Class 39(4). Radioactive substances are produced by exploding a nuclear bomb in an underground cavern.
Patent GB-459624-A (GB)
Title: Improvements in and relating to the storage of inflammable or explosive liquids
IPC: F16K17/00
Filed: 1936-03-02
Abstract: 459,624. Preventing fires; filling containers ; pressure-relieving devices. SZILVAY, K., 66, ArÚna u., Budapest. March 2, 1936, No. 6339. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 2, 1936.] [Class 47 (ii)] [See also Group XVII] A container 1 for storing explosive or inflammable liquids is constructed to withstand a pressure of from seven to eight atmospheres, and is connected to atmosphere by means of a pressure-relieving valve 2, which normally maintains atmospheric pressure within the container. The valve disc 12 comprises a plug of fusible metal adapted to melt if the valve should jam at increased temperature, and has a vent hole 11. It communicates with the atmosphere by a pipe 4 and flame arrester 5. A reversible pump 3 and three-way cock 6 are provided for filling the container from a coupling 7, or for discharging it by the pipe 10<1> and discharge valve 9. The pipe 10<1> is provided with a check valve 10 for preventing a violent rush of liquid through the pipe, and the valve 9 is a thermal one adapted to close the discharge pipe if the surrounding temperature rises unduly.
Patent GB-114358-A (GB)
Title: An Improvement in the Process of Manufacturing Leather.
Inventor: BARCLAY ARTHUR
IPC: C14C3/04
Filed: 1917-05-04
Abstract: 114,358. Barclay, A. May 4, 1917. Treatment preliminary to tanning; tanning with special chemicals.-The hides or skins are soaked in a saturated solution of sulphate of magnesia, to which a small quantity of formalin may be added. After this treatment, the hides &c. are immersed in a strong solution of tannic acid or other tanning agent.
Patent GB-1432292-A (GB)
Title: Guide attachment for a heald frame
IPC: D03C13/00
Filed: 1974-02-13
Abstract: 1432292 Healds T WAGNER 13 Feb 1974 [8 March 1973] 6624/74 Heading D1E A guide 7, 8 mounted on the stoves 1, 2 of a heald frame to prevent interference between adjacent heald frames during shedding comprises two parts 9', 10' releasably joined together. As shown the parts are held by spring loaded pivoted levers 25, 26 having jaws 23, 24 which engage pins 21, 22 in the adjacent part 9' which is secured to the stave. Alternatively the parts may be screwed together. For Figures see next column
Patent GB-1534913-A (GB)
Title: Seals in compressors
IPC: F04B39/04
Filed: 1976-02-19
Abstract: 1534913 Universal joints A BRAUN 19 Feb 1976 [21 Feb 1975] 6630/76 Heading E2F [Also in Division F2] A guiding and sealing sleeve 23 for a piston rod 20 in a compressor is supported from a housing 14 by means of a universal joint which may be either of the double journal type or in Fig. 2 (not shown) and Fig. 1, or of the ball and socket type as in Fig. 3 (not shown). The sleeve 23 is resiliently centred by two 'O' rings 24, 25.
Patent GB-919140-A (GB)
Title: Improvements in piston rings and in piston-and-ring assemblies
Inventor: CROSS ROLAND CLAUDE
IPC: F16J1/04
Filed: 1961-02-23
Abstract: 919,140. Piston rings. CROSS MANUFACTURING CO. (1938) Ltd. Dec. 11, 1961 [Feb. 23, 1961], No. 6636/61. Class 122 (1). In a piston-and-ring assembly comprising a bearing ring 6 of channel section formed by an axial portion having at each end an inturned radial flange 10 engaged in one of a pair of grooves 11 in the piston 1, the bearing ring 6 is divided axially as at 7 into two or more arcuate parts. Specifications 415,322, 841,975 and 910,305 are referred to.
Patent GB-124733-A (GB)
Title: Improvements in or relating to Brush Holders for Dynamo Electric Machines.
Inventor: COLLET ALBERT
IPC: H01R39/38
Filed: 1919-03-17
Abstract: 124,733. Collet, A. March 16, 1918, [Convention date]. Brush - holders comprise a body 1 having a longitudinal and a transverse seating to accommodate respectively a helical spring 6 and a brush 4, and an elbow-lever pivoted upon the body to transmit pressure from the spring to the brush. The springs is entirely enclosed by the body 1 and by a plunger 8 so that it is protected from sparks and blows; its tension is adjustable by a screwthreaded cap 7 which is accessible when the brush is withdrawn.
Patent GB-298937-A (GB)
Title: Improvement in rotary internal combustion engines
IPC: F02B53/00
Filed: 1927-07-16
Abstract: 298,937. Hibner, P. de F. July 16, 1927. Divided on 298,936. Drawings to Specification. Movable-abutment type; working-fluid supply; discharge passages for Pumps; cooling parts; packing drums, vanes, and abutments.-A rotary internal-combustion engine is supplied by a rotary compressor, Figs. 6a and 7 of Specification 298,936, comprising a piston head. 96, moving in an annular chamber 90 provided with a rocking abutment 104, which delivers compressed air past a valve 106 in a hollow wing 105 of the abutment and through valved outlet ports 111 at the opposite lateral sides of the abutment. The abutment chamber 91 is also fitted with a stop thimble 108 having a valve 109 therein to allow passage of compressed air into the abutment chamber whence the air passes out laterally by the valved ports 111 into nozzle members connected with a manifold. Wearing plates 112 are placed between the abutment and the valved discharge ports 111 which latter are carried by discs 110 secured to the nozzle members. An engine is' shown in which two such compressor units feed two engine units, Fig. 6 of Specification 298,936, each having a two-winged rocking abutment 59 co-operating with a piston head moving in an annular chamber 45; the engine and compressor pistons are mounted on a common drive shaft 1 and the abutments are actuated by a common gear driven cam shaft. The compressed air is distributed to an air and fuel mixing device 19, which supplies the combustible mixture to the engine units for scavenging and to a compressedair reservoir. A reservoir for the combustible mixture is provided by horizontally arranged tubes acting as frame bars; they are fitted with blow-off caps. A compressor unit may be cut out of action by moving its abutment-actuating lever out of contact with the cam shaft. Spring- pressed packing rings are provided on the rotors and piston heads. Cooling air is supplied by a blower 126.