baber/WOPTO huggingface dataset:
Patent GB-931078-A (GB)
Title: Continuously variable friction gears
IPC: F16H15/12
Filed: 1959-10-02
Abstract: 931,078. Variable-speed friction gears. F. COMIDA, and G. OBONI. Oct. 2, 1959 [Oct. 15, 1958; March 25, 1959], No. 33402/59. Class 80 (2). A continuously variable friction gear comprises driving and driven discs 4 frictionally engaging a freely rotatable oblique disc 8 which is adjustable in its own plane to vary the gear ratio. Support discs 4a are loaded by springs 7 so that the disc 8 is clamped between pairs of discs 4, 4a. The edges of the discs 4, 4a may be bevelled or rounded. Disc 8 is mounted by a bearing 17 on a pin 9 carried by a carriage 10 slidable along a guide 11, the carriage being adjusted by a knob 14 having a pinion 13 meshing a rack formed on the carriage. Limited universal movement of the disc 8 is permitted by the bearing 17, or in an alternative construction by play between the carriage and guide and by the mounting of the guide in the casing, in order to ensure correct positioning of the disc 8 relative to the discs 4. In modifications the driving and driven disc 4 are in perpendicular planes, and the driven disc may drive an output shaft through reduction gearing. In another modification, Fig. 10, the carriage 10 is secured to the guide 11 by a pin 27 and the guide is screwthreaded at 11a so that it can be adjusted by means of a threaded sleeve 30 which is held axially. In the modification of Fig. 8 two driving discs 24 are geared to an input shaft 23 and frictionally drive simultaneously adjustable discs 8 driving a common output disc 24b.
Patent GB-611521-A (GB)
Title: Improvements in, and relating to, latch bolts
IPC: E05B17/00
Filed: 1945-12-11
Abstract: 611,521. Latches. CADDICK, W., and RESILIENCE LOCK & MANUFACTURING CO., Ltd. Dec. 11, 1945, No. 33458. [Class 44] A latch bolt is provided with a transverse hole through the bolt head c and has a freefitting ball E accommodated therein, the disposition of the hole being such as to leave a portion of the chamfered end C<1> extending beyond the ball which extends laterally on one or both sides of the head to engage against guide-plates G. The ball serves to engage the striking plate before the chamfered end C<1>. The guide plates G may be carried by and project rearwardly from a fore end-plate H and each has an inner surface formed as longitudinal grooves g to fit the ball snugly. The back-plate A and the cap-plate D of the lock are recessed to allow guides G to project therethrough. The bolt head is pressed towards its shot-out position by one arm of a bell-crank lever, the other arm of which is spring pressed and lies normally against one of the horns of a follower to prevent the follower being turned in one direction while leaving it free to be turned in the opposite direction. According to the Provisional Specification, the ball may be replaced by a roller.
Patent GB-1403213-A (GB)
Title: Glucose assays and reagents therefor
IPC: G01N33/66
Filed: 1972-07-18
Abstract: 1403213 Determination of glucose AMERICAN MONITOR CORP. 18 July 1972 [2 Aug 1971] ] 33554/72 Heading G1B Glucose is colorimetrically or spectrophotometrically determined using an ortho toluidinetype glucose reagent which comprises an aromatic amine and a promoter, the aromatic amine and the promoter being dissolved in a solvent comprising ethylene glycol and/or propylene glycol, the promoter comprising a carboxylic acid which-does not form or precipitate with the aromatic amine in combination with the solvent. The promoter may be hydroxysuccinic, succinic, citric or hydroxyacetic acids or acetic acid in concentration less than 40%. Aromatic amines exemplified are ortho-toluidine (preferred), aniline acetic acid, benzidine, aniline, 2-aminobiphenyl. The reagent system may contain 15% to 20% w/v dicarboxylic and/or tricarboxylic acid and 10% to 40% v/v (based on the glycol) of water.
Patent GB-1006894-A (GB)
Title: Process for dyeing or printing natural nitrogenous fibrous material
IPC: D06P1/642
Filed: 1964-08-17
Abstract: Natural nitrogenous fibrous materials are dyed or printed with water-soluble or -dispersible dyes in an aqueous preparation containing at least 5% on the weight of the preparation of a solid or liquid nitrile whose N­C - group is attached to a C atom or of cyanamide at a temperature of 15-40 DEG C. and the so treated material is stored in the moist state for at least one hour at 15-40 DEG C.  Suitable dyes are derived from a number of specified dyestuff series and include acid and metallised dyes as well as reactive dyes and solubilised vat dyes.  Suitable nitriles have the formula B-CH2-CN where B is H, a possibly substituted alkyl or a group imparting an acid or basic character or the formula <FORM:1006894/D1-D2/1> where Y is A or an alkenyl group and Z an alkenyl group, and Y and Z may also be linked together to form a 5- or 6-membered ring. The aqueous preparations may also contain anionic or non-ionic surfactants, thickeners, electrolytes, acids, bases, hydrophilic compounds that are restrictedly soluble in water, e.g. n-butanol or benzyl alcohol and coacervating agents.  Specified nitrogenous materials are wool, silk, leather, skins, hair (animal or human), feathers and sisal.  Examples are given.
Patent GB-621039-A (GB)
Title: Machine for grinding internal conical surfaces
IPC: B24B5/14
Filed: 1945-12-12
Abstract: 621,039. Grinding and polishing. ROSSMANITH, W. Dec. 12, 1945, No. 33657. Convention date, Nov. 8. [Class 60] A machine for grinding internal conical surfaces on stationary work-pieces by means of a grinding tool in the form of a cone, the apex angle of which is equal to the apex angle of the hollow cone to be ground and which is fixed on a grinding spindle arranged in the longitudinal bore of a hollow spindle rotating on its own axis, is characterized in that the grinding spindle axis can be displaced in a plane passing through the hollow spindle axis parallel to itself at an angle which is equal to half the apex angle of the hollow cone to be ground. An internal conical surface 2 of a work-piece 1 is ground by means of a cone shaped grinding wheel 5, having the same cone angle as the work piece, which wheel in addition to a rotation about its own axis is also moved round the periphery of the work-piece and given a movement in the direction of a cone generator. The grinding wheel spindle 9, Fig. 2, is driven by belt 20 and pulley 21 and is carried by a slide 10 slidable on, and carried round with, a guideway 8a formed in the lower end of a rotating hollow spindle 8 through which the spindle 9 extends. A lever 12 pivoted on the lower extension of the spindle 8 carries at one end a roller 13 running in a ring 14 and at the other end engages the slide 10 so that vertical movement of the ring 14 results in a longitudinal movement of the slide irrespective of its rotation with that of its carrier-the spindle 8.
Patent GB-1096349-A (GB)
Title: Improvements in electron beam tubes
IPC: H01J25/14
Filed: 1965-08-06
Abstract: 1,096,349. Electron beam tubes. COMPAGNIE FRANCAISE THOMSON-HOUSTONHOTCHKISS BRANDT. Aug. 6, 1965 [Aug. 7, 1964], No. 33878/65. Heading H1D. An electron beam tube, e.g. a travelling wave tube or a klystron, has a collector electrode 20 located within a sealed metal enclosure formed by transverse portions 19 and a longitudinal portion 22, wherein the collector is electrically insulated from the enclosure and a closed space formed at least by longitudinal portion 22 and a surrounding jacket 22a has a circulating liquid to cool the metal enclosure, a diaphragm formed by the transverse portion 19 having an aperture to allow passage of the beam and being located near the closed space. The collector may be insulatingly supported from the metal walls of the end chamber by its supply line. The diaphragm electrode is flared outwardly in a direction towards the collector electrode and the collector surface is concave. The collector electrode is operated at a potential between the cathode and high frequency circuit and is magnetically shielded from a magnetic focusing field by making parts of the surrounding jacket of ferromagnetic material. The electron beam may be cylindrical as shown, or alternatively an annular structure may be used.
Patent GB-362625-A (GB)
Title: Improvements in screw stoppers for bottles and the like
IPC: B65D39/08
Filed: 1930-11-12
Abstract: 362,625. Screw-stoppers. ROBINSON, R., 160, Dobbin Hill, Sheffield. Nov. 12, 1930, No. 34006. [Class 125 (iii).] A screw-stopper for bottles &c. of the type having the usual top portion x, an integral short screwthreaded portion b below, and below this an integral stem c of considerably smaller size upon which is placed a thimble of cork &c. adapted to abut a swelling h in the neck of the bottle &c., is characterized in that the thimble d is held against rotation on the stem c by suitably formed projections upon the stem or by its shape. The stem may be serrated or notched, or may be square or rectangular in cross section. Alternatively, it may be modified to comprise two cylindrical pins which fit into corresponding holes in the thimble.
Patent GB-1067569-A (GB)
Title: Improving the cetane number of fuels for diesel engines
Inventor: PLATZ ROLF
IPC: C08K5/40
Filed: 1964-08-20
Abstract: A diesel fuel contains 0.1 to 2% (vol.) of a nitrate of a hydroxycarboxylic ester.  Those preferred have the formula <FORM:1067569/C4-C5/1> R1 being hydrogen, an aliphatic or an aromatic radical; R2 being hydrogen, an aliphatic or an aromatic radical; and R3 an aliphatic or an aromatic radical.  Specified nitrates are those of methyl ethyl and isopropyl lactate, and that of methyl glycolate, acid urethyl hydroxy isobutyrate.
Patent GB-893232-A (GB)
Title: Improvements relating to the heat treatment of metals in an electrolytic bath
Inventor: LANCASTER JOHN KEITH
IPC: C22F1/00
Filed: 1958-10-24
Abstract: 893,232. Heat treating metals. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 16, 1959 [Oct. 24, 1958], No. 34169/58. Class 72. [Also in Group XI] A process for the heat treatment of a metal object comprises the steps of immersing said object in an electrolytic bath containing an anode, interposing between said object and said anode an insulating shield so formed that on relative rotation between it and said object successively relatively small areas of the object will be left unshielded from the anode, applying a sufficiently high voltage between said anode and said object to cause an electric discharge to be produced across a gas or vapour envelope that is then formed at the initially unshielded area, said discharge being effective to heat said area, and thereafter effecting relative rotation between said object and the shield to heat the other such areas successively. In one arrangement, Fig. 1, a cylindrical metal object 3 immersed in a bath 2 of a ten % sodium carbonate aqueous solution is surrounded by an annular anode 7. A cylindrical insulating shield 9 provided with an aperture 10 has a riser thread 11 and gear teeth 15 engaging a driving spline 16 thus enabling the shield to be rotated so that all parts of the annular surface of the object 3 can be subjected to the discharge. In an alternative arrangement, Fig. 2, a gear wheel 53 is rotatably mounted within an insulating shield 59 having an aperture 57 of suitable size to expose one of the teeth which is exposed to the discharge for a given time depending on whether surface or through heating is required and is then quenched by the relatively cool electrolyte.
Patent GB-1322211-A (GB)
Title: Drill grinding machines
IPC: B24B41/04
Filed: 1970-07-14
Abstract: 1322211 Grinding N SCHLUMBERGER & CIE 14 July 1970 [17 July 1969] 34191/70 Heading B3D A drill grinding machine comprises a grinding wheel 1 carried by a spindle 3 rotatably mounted off-centre in a sleeve 4 which is rotatable and axially movable, the axial movement being controlled by a stationary annular cam 37 engaging a roller 38 carried by the sleeve on a radial axis, and the cam having a major portion axially displaceable by position-adjustment means 45. The spindle 3 is mounted off-centre in tapered roller bearings 11, 12 in the sleeve and is rotated by a belt-driven pulley 24, and the sleeve is mounted for rotation and axial movement in needle roller bearings 31, 32 in a frame 5. Rotation of the sleeve is effected by a gear 36, and the axial movement is effected by the cam 37, which is of annular shape and roller 38 so that the grinding wheel is moved to helically grind the point of a drill. The roller is mounted on a pin 56 extending from the sleeve, and the cam has a portion which is secured by screws 42, Fig. 4, to the frame and connected by slots 51, 52 permitting deformation of an operative segment of the cam which is engaged by the roller, a spring 67, Fig. 2, acting through a pivoted lever 64 to press the roller against the cam. In order to adjust the cam, a screw 45 is rotated to displace the segment via the slots 51, 52 relative to the position fixed by the screws. In other embodiments, the cam is not deformable but is mounted for adjustment about the axis of a rod secured to the cam.
Patent GB-1487173-A (GB)
Title: Devices for sealing the necks of bags
IPC: B65B51/06
Filed: 1974-10-11
Abstract: 1487173 Applying adhesive tape to bag necks UNILEVER Ltd 11 Oct 1974 [18 July 1973] 34322/73 Headings B8C and B8F A device for sealing the necks of bags with adhesive tape comprises means 10-16 to gather the neck of a bag, means 17 to feed the gathered neck against a stretch of tape partly to encircle the neck with the tape, and a rotary gripper 23 which on further movement of the neck completes the encircling and includes a tape cutting knife 25. The gathering means comprise upper and lower belts 10, 11 which feed a bag neck against spring loaded hooks 16. The pressure of the upper belts 10 is increased during the latter stage of the gathering by a cam 14. A pair of hooks 17, one of a succession of pairs of hooks on a series of cam operated arms, completes the gathering and feeds the neck against the tape adhering to a plate 20 and having a strip 9 of paper connected to its end. Further movement of the hooks feeds the neck into a cavity 22 of the gripper 23 causing the gripper to rotate against a spring bias. After the neck is encircled by the tape the free end of the tape and the strip 9 are applied to the opposing portion of the tape and the knife 25 severs the opposing portion and strip leaving a piece of the strip connected to both ends of the tape around the neck. The tape is supplied from a reel 1 and passes over a spring loaded roller 6 which on exhaustion of the tape on the reel 1 flies up to apply the tape end to the end of a new tape from a reserve reel 4.
Patent GB-798503-A (GB)
Title: Improvements in and relating to electroluminescent lamps
Inventor: MASH DEREK HUBERT
IPC: H05B33/20
Filed: 1953-12-09
Abstract: 798,503. Electroluminescence. THORN ELECTRICAL INDUSTRIES, Ltd. Nov. 15, 1954 [Dec. 9, 1953], No. 34324/53. Drawing to Specification. Class 39(1). An electroluminescent lamp comprises two electrodes (one transparent) enclosing a light producing layer which consists of phosphor and dielectric materials, and a material of higher dielectric constant than that of the light-producing layer is provided between the latter and one of the electrodes. The higher dielectric material may be one or more of magnesium oxide, the rutile and anatase forms of titanium dioxide, calcium, barium or strontium titanate, and mixed titanates, e.g., barium strontium titanate all being white solids which are efficient reflectors of light. The conducting electrode alongside the high dielectric layer may be graphite. The light producing layer is made as thin as possible, preferably with the ratio of electroluminescent material to dielectric material between 1:1 and 10 : 1. They may be applied as an intimate mixture or in powder and liquid forms respectively.
Patent GB-605287-A (GB)
Title: Method of insulating electric machines and apparatus
IPC: H02K3/32
Filed: 1945-12-19
Abstract: 605,287. Coils for dynamo-electric machines. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Dec. 19, 1945, No. 34386. Convention date, Dec. 30, 1944. [Class 35] The spaces between the layers of ribbon wound on edge in a multi-layer field coil are filled with a grain formed insulating material of high heat conducting ability, e.g. quartz sand, the whole then being impregnated with a synthetic resin or other material solid at normal temperature but liquid when heated. The Specification as open to inspection under Sect. 91 comprises also a similar method of insulating coils of other types, e.g. electromagnet coils. This subject-matter does not appear in the Specification as accepted.
Patent GB-1131528-A (GB)
Title: Ethylene polymerisation process and apparatus
Inventor: ELSTON CLAYTON TREVOR
IPC: C08F10/00
Filed: 1966-08-01
Abstract: 1,131,528. Polymerizing ethylene. E. I. DU PONT DE NEMOURS & CO. 1 Aug., 1966, No. 34444/66. Heading C3P. Ethylene polymers are prepared by a process comprising introducing monomer feed dissolved in an inert non-polymerizable solvent for the monomer and polymer to be prepared into an agitated reactor, introducing a co-ordination catalyst into the agitated reactor, polymerizing the monomer while maintaining the temperature and pressure sufficient to maintain the polymer in solution, passing the reaction mixture through a trimmer reactor, the volume of which is at least 5% of that of the agitated reactor and in which no reactants are added or removed, in series with and immediately following said agitated reactor, deactivating the catalyst after the reaction mixture has passed through the trimmer reactor and before ethylene polymer is recovered, and recovering the ethylene polymer. The volume of the trimmer reactor may be 5 to 60% of that of the agitated reactor. The ethylene may be copolymerized with propylene, butene-1, octene-1 or 4-methylpentene-1, and suitable inert solvents are heptane, toluene and cyclohexane. Polymerization may be effected in the presence of catalysts comprising titanium, zirconium or vanadium compounds and a reducing component. Apparatus suitable for carrying out the process of the invention is described and illustrated and in Examples (1) ethylene, and (2) ethylene and butene-1 are polymerized in cyclohexane in the presence of hydrogen and a catalyst formed from titanium tetrachloride, vanadium oxychloride and aluminium triisoprenyl, which is subsequently deactivated with acetylacetone.
Patent GB-466896-A (GB)
Title: Improvement in iodized bile acids
Filed: 1935-12-12
Abstract: Iodine compounds having germicidal properties are made by treating glycocholic or taurocholic acid or oxgall with iodine, or first with chlorine or bromine and then with iodine.  The iodine may be chemically combined and/or adsorbed.  Glycocholic acid may be dissolved in alcohol and treated with excess of iodine, the product being precipitated by adding water or ether.  Taurocholic acid may be treated with iodine in alcohol or carbon disulphide the solution being evaporated.  The taurocholic acid product is soluble in water, and its aqueous solution is a solvent for the glycocholic acid product.  Dried oxgall may be used as such but is preferably first purified by dissolving in alcohol, filtering, and evaporating. Oxgall may be treated with iodine in aqueous or alcoholic solution or in the dry state.  About 1,7 parts of iodine will chemically saturate 15 parts of oxgall, but more iodine up to 18--19 parts altogether may be fixed by adsorption. The oxgall may be first chemically saturated with chlorine or bromine, the product being then treated with iodine to obtain an adsorption product.ALSO:Iodine compounds having germicidal properties are made by treating glycocholic or taurocholic acid or oxgall, with iodine, or first with chlorine or bromine and then with iodine.  The iodine may be chemically combined and/or adsorbed.  Glycocholic acid may be dissolved in alcohol and treated with excess of iodine, the product being precipitated by adding water or ether. Taurocholic acid may be treated with iodine in alcohol or carbon disulphide and evaporating the solution.  The taurocholic acid product is soluble in water, and its aqueous solution is a solvent for the glycocholic acid product.  Dried oxgall may be used as such, but is preferably first purified by dissolving in alcohol, filtering and evaporating.  Oxgall may be treated with iodine in aqueous or alcoholic solution or in the dry state.  About 1,7 parts of iodine will chemically saturate 15 parts of oxgall, but more iodine, up to 18-19 parts altogether may be fixed by adsorption.  The oxgall may be first chemically saturated with chlorine or bromine, the product being then treated with iodine to obtain an adsorption product.
Patent GB-301327-A (GB)
Title: Improvements in or relating to picture and the like telegraph apparatus
IPC: H04N1/032
Filed: 1928-11-26
Abstract: 301,327. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Ranger, R. H.). Nov. 25, 1927, [Convention date]. Copying-telegraphs, -In a copying-telegraph the object or image is scanned first in one direction and then in another. The picture to be transmitted is fed comparatively slowly by moving endless bands 20 bearing against a fixed semi-cylindrical supporting-plate 14. The object is scanned by two ring-shaped lights 53 mounted on opposite sides of a cylindrical carrier 41 which is rotated comparatively rapidly by a drum 11 and simultaneously traversed by a cam shaft 5 with reverse spiral grooves 47. As the carrier moves in one direction one light follows a diagonal groove 15 in the supporting plate and during the reverse movement the second light follows an opposite diagonal groove 16. The active scanning light is lit through a commutator 63 on the carrier. The light refiected by the object passes through the centre of the light, a lens 54, a, reflecting prism 56, and lens system 57, 58, 59 to a photo-electric cell 60. In the receiver the photo-electric cell may be replaced by a light source controlled by a shutter, but preferably air jets acting on heat-sensitive paper are used. According to a modification, the source of light in the transmitter is fixed at the end of the rotating drum and the light is directed to the picture by a quartz cone and reflected light passes through a similar cone to a moving photoelectric cell.
Patent GB-780758-A (GB)
Title: Improvements in studs for boots
IPC: A43C15/16
Filed: 1954-12-01
Abstract: 780,758. Football studs. LILLIE, A. E. Nov. 17, 1955 [Dec. 1, 1954], No. 34796/54. Class 17(3) A moulded stud has a core comprising a threaded stem 1, a bulbous head 2, and a collar 3 which may. be circular but notched at 10 to provide a key with the moulded material. The collar 3 may be initially separate from the stem 1 and be held against a shoulder 6 by a bead 9 shaved from a reduced section 4 which may also be fluted at 7 to cut into the collar.
Patent GB-853825-A (GB)
Title: A process for applying a coating of polyvinylchloride to cellular materials
IPC: C09D127/06
Filed: 1956-11-14
Abstract: Surfaces of cellular materials are coated with polyvinyl chloride by applying an undercoating from a solution containing a copolymer of vinyl chloride and vinyl acetate, titanium dioxide, methyl isobutyl ketone and maleic acid, then applying a top coat from an organosol with a base of polyvinyl chloride and one or more pigments, plasticizers, stabilizers, and dispersion vehicles, and gelling the coating layer at 150 DEG  to 160 DEG C.  The process may be applied to natural or synthetic sponge rubber, foamed plastics, masses of wood fibres, or wood itself.  In the case of wood, the article must be dried before coating. Specifications 817,391 and 821,942 are referred to.