baber/WOPTO huggingface dataset:
Patent GB-485190-A (GB)
Title: Process of producing colour films by the subtractive three-colour method
IPC: G03B33/00
Filed: 1936-09-16
Abstract: 485,190. Colour photography. WILLE, C. (Horst, L.) Sept. 16, 1936, No. 25175. [Class 98 (ii)] Three colour separation negatives are taken transversely side by side on a colour sensitized film and two of the separation negatives are printed in register onto opposite sides of a positive film which is mordanted and dyed, the positive film being then resensitized with bichromated gelatine and the third separation negative printed therein in register with the other two images. The negative film 1 has three perforations 2 to each frame 3, which frame consists of portions 4, 5, 6 sensitized respectively to red, blue and green, and which after exposure yields records corresponding to these colours. The two outside records are printed by lamps A, A<1>, lenses L, L<1>, and prisms P, P<1>, onto opposite sides 11, 12 of a positive film band 10 coated with emulsion on both sides. The film is then mordanted and dyed to yield a red-blue two-colour film, the anti-halation layer 13 being simultaneously removed. A coating of bichromated gelatine containing a yellow dye is then applied on one side of the film and the third blue record copied thereon by moving the light A and lens-prism system across the film. The yellow image is then dyed in known manner. The dyestuffs used for the red, blue and yellow components are respectively fuchsine base, methylene blue alone or with methylene green, and auramine.
Patent GB-801906-A (GB)
Title: Improvements in or relating to heddle shafts
IPC: D03C9/06
Filed: 1956-08-17
Abstract: 801,906. Loom heald frames. GROB & CO. A.G. Aug. 17, 1956 [Aug. 17, 1955], No. 25175/56. Class 142(2) Side members 2 of heald frames are secured to the top and the bottom rail 1 by a screw 10, a rib 11 engaging a recess in the rail, and a spigot 8. An insert 6 of rubber or a synthetic plastic and having a plain bore is engaged by the thread of the screw and prevents inadvertent turning thereof. If the rail is of hollow or " H " section a block 3 is fixed thereto by rivets 4 and the screw 10 engages a screwed hole in the block. The spigot may be in the form of a rib and may project from either the rail 1 or from the side member 2. The insert 6 may only partially project into the bore 5. In another form the heald support bars are riveted to the inner edges of the top and bottom rails 1 and extend laterally therefrom and engage corresponding recesses in the side members so that the spigots or ribs 8 are unnecessary.
Patent GB-652612-A (GB)
Title: Improvements in machines for winding yarn upon a rotating core
IPC: B65H54/14
Filed: 1947-09-15
Abstract: 652,612. Winding yarn. BARBER-COLMAN CO. Sept. 15, 1947, No. 25190. Convention date, Aug. 12, 1940. [Class 120(ii)] A yarn-winding machine includes a traverse member 10 encircling a rotating bobbin &c. a and rotated in one direction relative thereto, the member 10 having a yarn-guiding edge which engages the running yarn b and provides two yarn-guiding surfaces 10a, 10b of differing slope, operative to move the yarn in opposite directions substantially parallel with the axis of the bobbin and at one side thereof. The winding spindle 15 is driven by a belt 17 from a motor 19 and through an adjustable gear train, one member of which is a long pinion 39, drives the member 10. The motor also drives a shaft 50 which rotates a crank 56 to oscillate an adjustable pawl 66 to turn a ratchet wheel 59, which, through a shaft 57 rotates pinions 62 to advance intermittently a pair of racks 28 to carry forward the traverse member 10 and so build the bobbin. When the bobbin has been completed a cam surface 77 on a rack 28 contacts a switch 78a of the over-centre type to stop the motor. The traversing member 10 is returned by a weight 74a when the ratchet-retaining pawl 68 is lifted.
Patent GB-1076964-A (GB)
Title: Method for producing polyacetal ethers
IPC: C08G4/00
Filed: 1965-06-15
Abstract: The invention comprises polymers consisting of polyacetal ether units obtained by polymerizing a vinyl-1,3-dioxane or dioxolane having a hydroxyl group and having the formula <FORM:1076964/C3/1> where n is 1 or 2, m is 0 or an integer and R1, R2, R3, R4 and R5 are hydrogen atoms or alkyl radicals which may be substituted by halogen atoms or ester groups.  The monomers are polymerized with or without a solvent using a catalyst which is a sulphonic acid or derivative thereof, a sulphonate, sulphuric acid or a derivative thereof, a sulphate, a pyrosulphate, or a Lewis acid.  In examples polymers are obtained from 2-vinyl-1,3-dioxane-4-carbinol, 2-vinyl-1,3-dioxane-5-methyl-5-carbinol and 2-vinyl-1,3-dioxane-5-ol, using as catalysts p-toluene sulphonic acid, methyl benzene sulphonate, ethyl m-nitrobenzene sulphonate, o-sulphobenzoic acid, p-toluene sulphonic acid anhydride, sodium hydrosulphate, potassium pyrosulphate, ammonium hydrosulphate, dimethyl aniline salt of pyrosulphuric acid, dimethyl sulphate, dimethyl pyrosulphuric acid, lauryl sodium sulphate, ethyl sulphuric acid, benzene sulphuric acid anhydride, boron fluoride etherate, titanium tetrachloride and tin tetrachloride.
Patent GB-859985-A (GB)
Title: Improvements relating to cathode-ray tubes
Inventor: BURN KENNETH COLLETT
IPC: H01J29/74
Filed: 1958-08-07
Abstract: 859,985. Cathode ray tubes. FERRANTI Ltd. Aug. 5, 1959 [Aug. 7, 1958], No. 25278/58. Class 39(1). A cathode ray tube is provided with a plate 5 having a rectangular or elongated aperture 6 for the passage of the electron beam, the aperture having dimensions equal to those of the smallest gap in any component, e.g. the deflecting plates 3, 4, through which the electrons subsequently pass, the plate 5 being shielded on at least the gun side by a shield 7 having a circular aperture 8 of diameter at least equal to the diagonal of the rectangular aperture or the maximum dimension of the elongated aperture. A similar shield with a similarly sized aperture may be located on the other side of the plate. In operation the shields are maintained at earth potential and the plate 5 at the mean potential of the pair 3 of deflector plates if only one shield is present or without any potential applied if there are two such earthed shields 7.
Patent GB-477636-A (GB)
Title: Apparatus for the extraction of oil
IPC: C11B1/00
Filed: 1936-09-17
Abstract: An apparatus for extracting fat from whale meat and similar materials consists of a perforated drum 2 rotating on a horizontal axis within a digester and communicating with a fat separator 3 through a pipe d at the bottom <PICT:0477636/III/1> and a pipe g at a substantial height above the bottom through which digested material passes.  In operation, raw material in the digester 1 is treated with warm gelatinous liquor admitted from the separator 3 and heated for 15 minutes by admission of steam. A part of the liquor is then returned and the digested material still submerged in liquor, is heated with steam under pressure for 3 to 4 hours.  Exhaust steam passes out through a valve f.  The digested material and liquor then passes to the separator 3, and after standing the fat layer is drawn off. Oxidizing action of the air is prevented since the liberated fat is immediately surrounded by an envelope of the liquor.
Patent GB-584224-A (GB)
Title: Improvements in ear-rings
IPC: A44C7/00
Filed: 1944-12-16
Abstract: 584,224. Earrings. PEARCE, S. H., and PEARCE, T. Dec. 16, 1944, No. 25313.' [Class 43] An earring comprises a single sheet metal blank consisting of a mounting plate or member 1, which is dished and which forms or carries an ear ornament, a socket or holder 2, which is shaped to accommodate a doubleheaded clamping pin 7 and a clamping spring 8, and a connecting strip 3, which is formed into U-shape.
Patent GB-352787-A (GB)
Title: Improved means for promoting the circulation in steam boiler and other liquid heaters
IPC: F22D7/02
Filed: 1930-08-25
Abstract: 352,787. Steam boiler water-tubes. GEOGHEGAN, E. A., 63, Wall Street, New York, U.S.A. Aug. 25, 1930, No. 25314. [Class 123 (ii).] A water tube 11 so connected to the side 5 of a steam boiler or the like and heated by the furnaces gases in the firebox or flue as to promote the circulation in the boiler is of a non- circular cross section and is twisted throughout the whole or part of its length. The tube may be of a flattened, circular, or oval cross section, and the area of the cross section may vary along the tube.
Patent GB-251309-A (GB)
Title: Improvements in sectional buildings
IPC: E04B1/16
Filed: 1924-10-24
Abstract: 251,309. Burditt, T. H. F. Oct. 24, 1924. Flooring blocks; slabs; roofing blocks.-Hollow sections for walls, floors, roofs and the like are formed by covering a frame composed of strips or studs 40 on both sides with wire-mesh or expanded metal, and subsequently embedding it in concrete, the finished section being also formed with cavities which communicate with each other in the finished building. The studs or strips mav be of wood or reinforced concrete and the lower edges of the wall sections formed larger than the upper edges so as to overhang as shown at 19. The hollow projections 18 engage corresponding seatings in the superposed section, and the roof sections are formed with seatings 9 for the top edges of the upper wall sections. The floor sections are provided with end projections to fit upon recesses provided on the footings and wall sections, and the partition sections are secured in recesses in the wall sections by bolts 17, Fig. 3. The wall sections may be formed with designs on their outer faces and the reinforcement may be ribbed to provide better engagement between it and the concrete. Hollow tiles may be enclosed within the sections to form conduits for air, water, electric wiring, and like services.
Patent GB-609318-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/24
Filed: 1945-09-29
Abstract: 609,318. Safety razors. HEIDE, H. C. (Gillette Safety Razor Co.). Sept. 29, 1945, No. 25346. [Class 30] [Also in Group XVII] In a safety razor wherein the cap and guard remain connected when the blade is released from clamping pressure and present a passage through which a new blade having an open or closed-ended medial slot can enter, means which lift the entering blade by inclined plane action and blade-locating means are arranged on the guard nearer the end from which the blade enters. The razor described is the same as that described in Specification 600,278 except as regards the projections on the top of the guard 30 which now consist of a blade-locating rib 34 whose upper surface slopes downwardly in each longitudinal direction, and a shallow stud 35 adjacent the forward end of the rib 34 and sloping towards the blade entrance. A magazine for supplying new blades to the razor is described (see Group XVII). A blade-carrying unit 20 within the tubular body of the magazine has at each end crossmembers 26 having curved surfaces 26a which engage corner projections 32 on the guard as the magazine approaches the razor. Further movement of the magazine allows it to rise relatively to the razor so that bevelled ends 16a of flanges 16 forming part of the tubular body first pass under the old blade and then move upwardly to lift it. The feed slide 27 of the magazine is then moved across to feed the new blade into the razor beneath the old blade which is engaged and bowed by fingers 28, 29 of a gripper carried by the bridge of the feed slide 27 so that, when the magazine is removed from the razor the old blade is caried away with it. Specifications 572,579, [Group XVII], 609,316 and 609,317 are also referred to.
Patent GB-278007-A (GB)
Title: Side registering device of sheet-feeding mechanism for folding or other machines
IPC: B65H9/10
Filed: 1927-09-26
Abstract: 278,007. Spiess, G. Sept. 25, 1926, [Convention date]. Sheet-registering devices. - A device for laterally registering sheets being fed to folding or other machines, of the kind in which the sheet is moved against a side guide by the engagement of a spring-pressed roller 3, Fig. 2, with a reciprocating bar, the side guide 15 and the roller 3 are carried by an arm 2 on a shaft 1 which is oscillated to lower them into engagement with the bar and table respectively for the registering operation and then raises them after the grippers of the machine have engaged the registered sheet. The outer end of the arm 2 has a transverselyextending part forming bearings 6, 14 for rods 5, 25 carrying the roller 3 and guide 15 respectively. The rod 5 is provided with a forked end 4 in which the roller 3 is mounted, and a squared part 24 engaging a square hole in the bearing 6 so as to prevent its rotation. The engagement of the roller 3 with the bar serves to compress a spring mounted on the beading 6 between a washer on the rod 5 and a sleeve 9 screwing into the bearing, and move the sheet situated between the roller 3 and the bar laterally into engagement with the guide 15. A pin-and-groove connection between the bearing 14 and the rod 25 prevents rotation of the rod which is pressed downwardly by a spring 29 and is secured to the guide 15 by a bolt 27. A guide plate 13 is secured by means of a bolt 12 and nuts 11 to a laterally-extending part 10 on the forked end 4. The rods 5, 15 are so adjusted in their bearings thab the guide 15 always reaches the table before the roller 3 engages the bar, and is not raised until the roller 3 has been raised. To adjust the side guide 15, the arm 2 may be moved along the shaft 1 or the shaft itself may be moved axially relatively to the main frame 20, Fig. 3, by means of milled nuts 21 rotating on an externally-threaded bearing sleeve 19 fitting between shoulders on the shaft 1.
Patent GB-1038712-A (GB)
Title: Improved hose coupling assembly
Inventor: PERKINS EDWARD LAWRENCE
IPC: F16L33/207
Filed: 1962-07-03
Abstract: 1,038,712. Hose couplings. DUNLOP RUBBER CO. Ltd. June 14, 1963 [July 3, 1962], No. 25403/62. Heading F2G. An assembly of a coupling with a flexible hose 10 having a reinforcement 11 embedded between an outer cover 12 and an inner lining 13 comprises a nipple 17 with a cylindrical tapered portion 18 which fits into a cylindrical slit 14 intermediate the inner and outer peripheries of the lining tube 13, a separate insert 15 fitting within the bore of the tube 13 and having an outwardly flanged end 16 abutting the end of the nipple 17 adjacent the inner periphery of the tapered portion 18 and an outer sleeve 21 swaged inwards to compress the hose between it and the insert 15 and the bored reinforcement 11 between it and the nipple. The hose 10 is of flexible rubber and the reinforcement 11 is wire braid. The slit 14 is cut concentrically with the axis of the hose and of slightly greater diameter than the external diameter of the flange 16 so that the portion 18 can enter the slit without fouling the flange. The bores of the insert and of the nipple are substantially the same as that of the hose. Annular grooves 23 in the insert 15 assist in forming a low pressure seal when the sleeve 21 is deformed and a frusto-conical sealing surface 20 on the nipple serves to force the portion 18 further into the slit 14, as seen (after compression) in Fig. 2.
Patent GB-504553-A (GB)
Title: Improvements in or relating to electric clocks
IPC: G04C3/06
Filed: 1938-09-09
Abstract: 504,553. Electric clocks. BROWN, T. A., and PERIVALE CLOCK, MANUFACTURING CO., Ltd. Sept. 9, 1938, No. 25435/37. [Class 139] An electric clock of the type in which an armature 30 oscillating in the air gap 18 of an electromagnet 12, 20 is associated with a balance 28 to control contacts in the energizing circuit of the electromagnet to re-energize the balance and wherein a second, separate armature 44 oscillates in an air gap 19 synchronously with the balance to drive the to the hands, is characterized in that the energizing circuit of the electromagnet comprises two circuit-closing devices 40, 38 and 32, 22 in series. In the construction shown, the magnet 12 is rectangular and a pin or cam 40 on the staff 26, carrying the balance 28 and armature 30, coacfs with the inclined end 38 of a blade spring 32 so that in one direction of oscillation of the balance, the pin 40 first closes contacts 40, 38 and then presses blade 32 down on to contact 22 to complete the series circuit, of coil 20 ; and in the other direction the pin 40 lifts the blade idly, electrically. The second armature 44 is biassed to the position shown by a hairspring 46 and carries a spring-pressed pawl 48 driving the ratchet wheel 50 which is geared to the minute hand spindle 52. Instead of using the hairspring 46, the second armature may be pivoted out of balance. Pins 60, .61 limit the travel of this armature. In a modified construction, Figs. 3-5 (not shown), the two armatures oscillate in planes perpendicular to the plate 10 and the train-driving pawl is pivoted eccentrically between two discs on the arbor of the second armature. In another construction, Fig. 6 (not shown), the magnet is of H-form with the coil around the centre limb. In a modified contact mechanism, Figs. 7 and 8 (not shown), the pin 40 on the balance staff presses a resilient contact blade on to a second resilient contact blade.- The magnet is preferably laminated and may have one or more energizing coils. The two separate armatures may oscillate in the same air-gap. Specification 491,442 is referred to.
Patent GB-418401-A (GB)
Title: Improvements in horseshoes of rubber or similar elastic material
IPC: A01L5/00
Filed: 1933-09-14
Abstract: 418,401. Horseshoes. HARSEM, 0., 10, Uranienborgveien, Oslo, Norway. Sept. 14, 1933, No. 25468. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 18, 1934.] [Class 67.] In a shoe of vulcanized rubber moulded around a metal frame, the latter comprises a member 1 of horseshoe shape, preferably of aluminium, supporting by means of downward projections or studs 2 a number of anchoring plates 3, which may be further supported by flanges 4, 5 on the member 1 or on the plates 3.
Patent GB-716864-A (GB)
Title: Improvements in or relating to transparent glass beads and reflex light-reflectors employing the same
IPC: C03C15/00
Filed: 1950-10-20
Abstract: 716,864. Reflex reflectors. MINNESOTA MINING AND MANUFACTURING CO. Oct. 20, 1950 [Oct. 22, 1949], No.'25602/50. Class 97(1) [Also in Groups VII and XXIII] A reflex reflector having a single layer of glass beads united to an underlying reflecting surface and covered by a transparent coating provided with a flat front face is characterized in that each bead has a glass core whose refractive index exceeds 2.0 and a porous surface layer formed by leaching and of substantially lower refractive index than the core glass and of small thickness as compared with the core diameter, the effective refractive index of each bead being substantially higher than that of the core glass and being at least 2.4 and lying between 1.6 and 2 times that of the transparent covering. The reflex reflector shown in Fig. 3, has a reflecting backing 14 as of sheet aluminium or stainless steel, or a metal foil, or a film containing reflecting pigment or a paper or film with a reflecting coating thereon. This backing is coated with a reflective binder 15 which may include transparent or reflective colour pigment and in which glass beads 16 are partially embedded. The beads are covered with a transparent coating 17 (e.g. an alkyd resin lacquer) having a low refractive index (e.g. 1.5). The beads are preferably of the lead-bismuth type (see Group XXIII) and have a porous surface layer which is formed by leaching (see Group VII) and consists mainly of bismuth oxide. Preferably, the beads have a refractive index of 2.9. The beads may contact the reflecting backing. Specifications 558,002, 598,330. [Group XVIII], and 598,651 are referred to.
Patent GB-750588-A (GB)
Title: Novel xanthine derivatives and a process for the manufacture thereof
Filed: 1954-09-03
Abstract: The invention comprises substituted xanthines of the general formula <FORM:0750588/IV(a)/1> wherein R1 and R2 represent alkyl radicals containing from 1 to 5 carbon atoms and R3 represents the propargyl radical, and the preparation thereof by heating an alkali metal salt or a heavy metal salt of the required 1,3-dialkyl-xanthine with a propargyl halide, e.g., the bromide.  The process may be modified in that the resulting 7-propargyl compound may be heated with mercuric sulphate or acetate in acid solution or a catalyst consisting of boron trifluoride etherate and mercuric oxide may be added thereto, the resulting product being treated with dilute sulphuric acid; in each case the 7-propargyl radical is converted into a 7-acetonyl radical.  The preferred 1,3-dialkyl-xanthine reactant is theophylline.  Suitable alkali metal and heavy metal salts of the 1,3-dialkyl-xanthine reactant are the sodium and silver salts.  In the examples 7-propargyl- and 7-acetonyl-theophylline are prepared.
Patent GB-684241-A (GB)
Title: Improvements in or relating to the production of combustible gases
Inventor: EDMONDSON PHILIP DAVID
IPC: F02C3/28
Filed: 1949-10-05
Abstract: 684,241. Gas-producers. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Oct. 4, 1950 [Oct. 5, 1949], No. 25631/49. Class 55 (i). A combustible gas is produced by the combustion of a solid granular or pulverized fuel, e.g. coal or peat, which is fed to the gas-producing chamber in wet condition and is subjected to a blast which is preheated to a temperature high enough to ensure gasification, i.e., about 900‹C., the blast being preheated in a regenerator which alternately receives heat from the gas produced and gives up heat to the blast. The gas producers 1, 2, which may be of the cyclone type described in Specification 338,108, [Class 55 (ii)], are fed with wet pulverized fuel from a supply 3, have their blast air inlets connected by a duct 4 and are arranged in series with regenerators 5, 6 and dust filters 7, 8. Switching means 9, as described in Specification 684,028, is provided at the lower temperature ends of the regenerators, so that the producers 1, 2 may be used alternately. The air supply to the valve 9 is by a compressor 10 and the gases from the operative producer passes through a turbine 11 which drives the compressor. The exhaust gas from the turbine passes to storage or to further plant for utilizing its remaining pressure, sensible heat and chemical energy, e.g. the exhaust gas may be burnt in a combustion space connected to another turbine driving an alternator, the turbine being connected also to an air compressor which takes in atmospheric air and delivers it to the compressor 10 in which it is boosted.
Patent GB-406761-A (GB)
Title: Improvements in and relating to tool holders
IPC: B23B27/16
Filed: 1932-09-15
Abstract: 406,761. Diamond tools. GARNER, J. R., 3, Russell Road, Moseley, Birmingham, ECCLES, R. P., 16, Kynton Green Road, Olton, and DIAMOND TOOLS, Ltd., 79, Lombard Street, Birmingham, both in Warwickshire. Sept. 15, 1932, No. 25653. [Class 124.] A diamond or like tool-holder in which the diamond a, provided with a plurality of facets is mounted in a holder b which may be moved angularly as shown by the arrows f to bring the different facets into use has means whereby a fine angular adjustment of the tool may be made. For this purpose the bar e to which the diamond holder is secured by a plate c and screw d is angularly adjustable about a pivot pin g by means of an eccentric i which engages a slot in the bar and is formed on a pin k mounted in upper and lower plates h, j. The pin may be rotated by a hexagon head n and the angular adjustment obtainable is normally such that any of three facets on the tool may be brought into operative position.