baber/WOPTO huggingface dataset:
Patent GB-187672-A (GB)
Title: Improvements in machines for sharpening safety razor blades
IPC: B24D15/08
Filed: 1922-03-02
Abstract: 187,672. Ryan, D. P., Douglass, E. J., and White, P. J. March 2, 1922. Stropping-apparatus.-Relates to machines for sharpening safety-razor blades wherein two cams H upon one of two relatively slidable portions T. U are so placed and shaped as to lift the rockably-mounted blade from off the sharpening- medium and to allow it to re-engage the medium at the times desired. According to the invention, a spring M is attached to one end of a cam. shaped piece L having two curved or inclined surfaces, the piece being adapted to bear upon studs S on a part K at the end of the blade carrier housing P so that, when over the medium, the blade is pressed thereupon, whereas, after being lifted by a cam at the end of a slid. ing movement, the blade is held vertical. The blades are held in the apparatus without the aid of screws, springs, catches or the like. If the blade is single-edged and has one or more projecting portions it may be inserted directly between the two closely disposed metal strips of the carrier housing P so that the edge projects. In the case of plain flat blades and single-edged blades without projections they are placed upon a carrier A and engaged with the carrier studs, the blade and carrier being then inserted between the strips of the housing P so that the blade is prevented from leaving the studs. By rotating the blade carrier housing in its bearings through 180‹ the opposite edge of a double-edged blade can be sharpened. The sharpening-medium. gripped at the side by a spring V, may be laid straight or diagonally, the bottom of the receptacle being made convex so that the medium can rock. Specifications 10749/04, 1375/12, 108,531, and 129,611 are referred to.
Patent GB-644392-A (GB)
Title: Improvements in and relating to electric circuit interrupters for high speed circuitbreakers of the liquid blast type
IPC: H01H33/02
Filed: 1947-07-17
Abstract: 644,392. Liquid-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 17, 1947, No. 19171. Convention date, July 19, 1946. [Class 38(v)] Each interrupter of the multi-break circuit-breaker disclosed in Specification 493,262 comprises a strong insulating casing 7 closed at the ends by an aluminium casting 8 and a ring 10 fixed to the casing 7 by headless tapered pipe-threaded screws 12 having their unthreaded recessed ends located in holes in the casing 7. A contactcarrying rod 15 of compressed wood is tensioned by spacers 18 of Textolite compressed between a square-section part 16<SP>1</SP> and a butt isolating contact 17 screwed directly to one end, and is slidable in short bearing surfaces 31, 32 respectively, in the casting 8 and a guide plate 11 bolted to the ring 10. To prevent jamming of the rod 15, the length L of each bearing 31, 32 is less than C¸ tangent A, where C is the total diametral bearing clearance, and A the probable maximum bending angle of the rod 15 due to forces within the casing 7. Also, high opening speed by springs 19, 22 is assisted by the low co-efficient of friction between the Textolite and metal bearing surfaces and by the piston effect due to the rod 15 being of larger diameter at 18 than at 16. Series interrupting contacts 14 slidable on the rod 15 against the springs 22 are made of high-tensile aluminium alloy and co-operate with fixed contacts 23, 24, 25 to produce arcs which are extinguished by oil-blast through renewable ports 30, the circuit being interrupted in a few half-cycles, after which the butt isolating contacts 6, 17 separate. Insulating sheathings 28, 29 protect the fixed contacts 24, 25 and a metal hood 13 electrostatically shields the lower parts of the interrupter 1. The whole movable part can be removed from the casing 7 by unscrewing the hood 13 and the guide plate 11. In an alternative construction, the plain bearing surfaces 31, 32 are replaced by spherical selfaligning bearings.
Patent GB-460172-A (GB)
Title: Improvements in or relating to electrostatic protection bypass members
IPC: H05B41/46
Filed: 1936-07-10
Abstract: 460,172. Protective cut-out arrangements. STEVENS, A. H. (Packard Properties, Inc.) July 10, 1936, No. 19205. [Class 38 (v)] [Also in Group XXXV] Electrostatic switches ; cases.-A removable, electrostatic, circuit-closing byepass member for connecting across a neon-lamp or other H.T. circuit, comprises a pair of normally-separated electrodes 15, 16, Fig. 3, approaching each other solely in response to the electrostatic influence afforded by the circuit, and a highlyevacuated vessel 10 provided with terminals 13, 14. In the application referred to, the mid point 32 of the secondary 20 of the usual magnetic-leakage type transformer is earthed through a byepass 31 to the casing 21 and a byepass 30 connects the mid point of the lamps 24 ... 27 to earth. If one half of the bank of lamps breaks down, the excess voltage across the remaining half causes the electrodes 15, 16 of byepasses 30, 31 to be electrostatically attracted to maintain the supply to the sound half, and at the same time the part of the secondary 20 supplying the defective half is protected against the increased open-circuit volts by the breakdown of the byepass 33 or 34 at its end. In a modification, Fig. 2 (not shown), each lamp is shunted by a byepass and the mid point tap 32 is dispensed with. When attracted into contact, the electrodes 15, 16 become incandescent and weld together to make the engagement " permanent," but they can be separated, after the fault is removed, by a slight mechanical tap. The electrodes may be helically coiled to prevent breaking of the weld through flexure thereof on cooling. The normal separation of the electrodes may be 0À05 inches and the overlap (see Fig. 3) 0À075 inches, the convolutions being 0À003 to 0À005 inches in diameter. Suitable materials are nickel chromium alloy, tungsten, or carbon. The construction may be such, or the materials may be so chosen, that the electrodes separate automatically on cooling.
Patent GB-1070272-A (GB)
Title: Photographic diffusion transfer processes
IPC: G03F7/07
Filed: 1964-05-08
Abstract: 1,070,272. Diffusion transfer processes and materials. EASTMAN KODAK CO. May 8, 1964 [May 17, 1963], No. 19228/64. Heading G2C. An aqueous alkaline photographic processing solution which may or may not contain a developing agent, for use in the silver salt diffusion transfer process has a viscosity of 2À5 to 300 c.p.s. at 25C. and contains silver precipitating nuclei and a silver halide solvent. The emulsion layer used in the diffusion transfer process may be over coated with an alkali-permeable layer of a polysaccharide compound e.g. carboxy methyl cellulose or hydroxy ethyl cellulose or a gelatino titanium dioxide layer. Specified silver precipitating nuclei are silver, silver proteinate, sulphides and selenides of the metals Zn, Cd, Ag and Ni. The silver halide solvent may be sodium thiocyanate, ammonia or sodium thiosulphate. In alternative processes the silver halide solvent may be in a layer under the emulsion layer or be incorporated in the image receiving paper together with a cold toner e.g. 5 - ethyl - 5 - methyl thiohydantoin. The image receiving layer may be paper, baryta or clay-coated paper, polymer coated paper, leather, glass, polyethylene, cardboard, cloth, wood, brick, metal e.g. Al. and partially acetylated paper stock containing phthalic acid-gel. The viscosity of the processing solution is maintained by incorporating therein gelatine, acrylic acid/ethyl acrylate copolymer, carboxy methyl cellulose, hydroxyethyl cellulose, and dextrin.
Patent GB-999500-A (GB)
Title: Improvements in or relating to electric ceiling fans
Inventor: SIDHU HARBHAJAN SINGH
IPC: F04D25/06
Filed: 1964-05-08
Abstract: 999,500. Axial-flow fans. MATCHWELL ELECTRICALS (INDIA) Ltd. May 8, 1964, No. 19245/64. Heading F1C. [Also in Division H2] In an A.C. ceiling fan with upper and lower ball bearings, an inner stator with a spindle and an outer rotor, the outer bearing races are fitted rigidly in their housings, the inner race of the upper bearing is firmly held on the spindle, and the inner race of the lower bearing is slidably fitted on the spindle and axially loaded to take up play in the bearings and thereby reduce bearing noise. A stationary spindle 1 carrying the stator 2 of the electric driving motor is supported in two ball bearings. The inner race of the upper bearing is press-fitted to the spindle or is secured to it by a nut 27 and sleeve 26, and the inner race of the lower bearing is axially slidable on the spindle, a compression spring 12 and a sleeve 13 being interposed to axially pre-load the bearings. In alternative embodiments the sleeve 13 is omitted or provided with a collar at its upper end, or the spring 12 is replaced by corrugated spring washers alternating with plain washers, or by a resilient compressible material such as rubber separated from the sleeve 13 by a plain washer.
Patent GB-1145101-A (GB)
Title: Sulphonation
Inventor: WELLWOOD RONALD
IPC: C07C309/17
Filed: 1966-05-02
Abstract: 1,145,101. Sulphonation of fatty acids. UNILEVER Ltd. 17 April, 1967 [2 May, 1966], No. 19248/66. Heading C2C. A process for the production of an alphasulpho fatty acid comprises continuous alphasulphonation of a monocarboxylic saturated fatty acid of formula RCOOH where R is C 8-20  alkyl, in which R is unbranched on the α carbon atom by reacting the acid with SO 3 / diluent gas at 95-150‹C. for a time which is just sufficient to ensure that substantially the whole of the fatty acid which has reacted is present as the α-sulpho derivative. Examples describe the sulphonation of a 50/50 mixture of coconut/tallow fully hardened fatty acid.
Patent GB-570941-A (GB)
Title: Improvements in and relating to polymers of vinylidene chlorofluoride
IPC: C08F14/18
Filed: 1943-11-18
Abstract: Vinylidene chlorofluoride is polymerized at normal or higher temperatures in the presence of a catalyst or ultraviolet light or both.  Pressure is used to maintain the monomer in the liquid condition or it may be dissolved in an organic solvent, e.g. acetone, or formed into an emulsion.  Catalysts specified are benzoyl peroxide, finely-divided spongy copper and tetraethyl lead.  A trace of uranium acetate may be used as a light sensitizer.  The products range from viscous liquids to gummy masses.  They may be soluble in acetone, chloroform, dioxane, methanol, ethanol and benzene.  They may be used for the production of films, filaments, mouldings, coatings and adhesives for fabrics, paper, wood, metal, glass, rubber and synthetic resins.  Filaments may be formed by extruding the molten polymer into a cooling medium, or a solution may be used in dry or wet spinning processes.  Alternatively, filaments may be withdrawn from the molten polymer upwardly through a cooling atmosphere. They may be mixed with dyes, pigments, fillers, plasticizers and other synthetic resins.  Vinylidene chlorofluoride is made by (1) subjecting tri-chlorethylene to the action of anhydrous hydrogen chloride in the presence of aluminium chloride and reacting the unsymmetrical tetrachloroethane produced with anhydrous hydrogen fluoride in the presence of antimony pentafluoride to form CH2Cl.CCl2F which is treated with zinc dust in boiling alcohol to remove two chlorine atoms; (2) subjecting methyl chloroform to the action of antimony trifluoride in the presence of antimony pentachloride to form CH3.CCl2F which on standing loses hydrogen chloride, which may be accelerated by the action of zinc dust and alcohol.  Vinylidene chlorofluoride is stated to have a boiling point of -10 DEG  C.
Patent GB-777009-A (GB)
Title: Improvements in or relating to a dust separator and a dust collector apparatus
Inventor: WESTLIN KARL LINCOLN
IPC: B04C3/04
Filed: 1955-07-04
Abstract: 777,009. Centrifugal separators. AMERICAN AIR FILTER CO., Inc. July 4, 1955, No. 19310/55. Class 23 A dust separator has a divergent inlet section 15, and an inlet 18 which admits the dust laden gas tangentially into the inlet section and which extends substantially the whole length of the section. The inlet increases in width towards the body 25 of the separator, and it may be replaced by a number of inlets. The inlet may be curved instead of lying in an axial plane. The body 25 may be cylindrical or conical. As shown in Fig. 1, a plurality of the separators form a multicell separator having an inlet 1 and an outlet 4. Dust is discharged from the bodies of the separators through diametrically opposed outlet slots 29 to a hopper below the separators, and cleaned gas is discharged from the bodies through outlets 35 to the outlet 4. The dust from the hopper entrained with 10 per cent of the total gas flow is led to a rotary separator 7, having a blower action, and which, discharges dust to a hopper 10 and returns gas to the inlet 1. The rotary separator may be replaced by any type separator and a fan. In a modified multi-cell construction (Figs. 8, 9, not shown), dust is discharged from each separator through a single outlet arranged to deliver the dust to a shoot. Dimensions and performance figures for a multi-cell separator are given in the Specification.
Patent GB-452230-A (GB)
Title: Improvements in and relating to turbo-gears
IPC: F16H47/06
Filed: 1935-07-06
Abstract: 452,230. Motor-vehicle driving-gear. VOITH, W., VOITH, H., and VOITH, H., (trading as VOITH, J. M., [Firm of]), Heidenheim-on-Brenz, Germany. July 6, 1935, No. 19369. Convention date, July 12, 1934. [Class 79 (ii)] [See also Group XXIX] Hydraulic turbogearing for power transmission in vehicles comprises a converter for low speeds, a coupling for medium speeds, and another coupling for high speeds, auxiliary gearing being associated with the coupling for medium speeds. In the form shown in Fig. 3, the secondary parts of the converter C used for low speed and of the coupling D<1> used for medium speeds are rigidly connected to each other, reducing gearing F being interposed between them and the secondary part of the coupling D<2> used for high speeds. In the form shown in Fig. 4, the converter C and coupling D<2> have a common driving shaft A<2>, while the coupling D<1> has a driving shaft A and acts on the driven shaft D<3> through reducing gearing. In a modification, the shaft A<1> is driven at a lower speed than the shaft A<2>, and in a further modification, the shaft A<1> also has a converter thereon. In another form, converters C<1>, C<2>, Fig. 6, act on axles B<1>, B<2>, a coupling D<1> on the axle B<1>, and a coupling D<2> on the axle B<2>. If desired, mechanical gearing may be interposed between the driving engine A and the primary shafts A<1>, A<2>, and further mechanical gearing between the driven shafts and the axles.
Patent GB-825355-A (GB)
Title: Improvements in or relating to cutter bar assemblies
IPC: A01D34/30
Filed: 1958-06-17
Abstract: 825,355. Drive for cutter bar assemblies. FORD MOTOR CO. Ltd. June 17, 1958 [June 18, 1957], No. 19372/58. Class 6(3). A drive mechanism 19 for a cutter bar assembly 10 comprises a crank 25 rotating about a fixed axis, a link 30 having a fixed pivot 29 at its upper end, and a bell crank lever 34 pivoted at 31 to the link 30 and at its ends to the crank 25 and a pivot 36 respectively, so that when the crank 25 is rotated the link 30 oscillates and the end of the bell crank 34 pivoted at 36 reciprocates, thereby operating a knife 15 to which it is attached. The crank 25 is at one end of a shaft 24 driven through a universal joint 26 and supported in a bearing portion 22 of the body 20 of the drive mechanism from which a rigid arm 27 extends to support the pivot 29. The cutter bar assembly 10 is of conventional type.
Patent GB-640217-A (GB)
Title: Improvements relating to dolls, toy animals and like model figures
IPC: A63H3/40
Filed: 1948-07-20
Abstract: 640,217. Dolls' eyes. RATCLIFF, G. R. July 20, 1948, No. 19402. [Class 132 (iii)] "Sleeping" eyes for dolls and like figures are actuated by a gravity arm, but move gradually in the closing direction only when the doll is rocked from side to side. In Fig. 3 a quadrant 15 attached to the weighted end of gravity arm 3 has ratchet teeth 17, 18 which engage oscillatable member 25 and prevent the pivoting of the eye assembly when the doll is moved to a horizontal position unless it is rocked from side to side. In a modification (Figs. 6-10, not shown), a quadrant 37, e.g. of moulded plastic material has two series of arcuately disposed slots which form the ratchet teeth.
Patent GB-1348025-A (GB)
Title: Heat-resistant articles of aluminium alloy with a coating
IPC: C23D3/00
Filed: 1971-06-08
Abstract: 1348025 Aluminium alloy SWISS ALUMINIUM Ltd 8 June 1971 [9 June 1970] 19486/71 Heading C7A Articles coated with enamel and/or other non-metallic material are made of an alloy consisting of Al, balance; Cu, 1À2-2À3%; Ni, 0À3-1À2%; Fe 0À15-1À2%; Mg, 0-1%; Si, 0-0À6%; Zn, 0-0À4%; Cr, Mn, V, W, 0-0À1%; Ag, Nb, 0-0À03%. The article may be a cooking pan, coated on the outside with enamel and on the inside with PTFE. The article may be annealed at 400‹ -550‹ C and then cooled in air to below 200‹ C in 15 minutes.
Patent GB-347059-A (GB)
Title: Improvements in jigger machines for the dyeing or like treatment of fabrics
IPC: D06B3/32
Filed: 1930-06-26
Abstract: <PICT:0347059/IV/1> <PICT:0347059/IV/2> In a jigger in which a squeezing roller 3 carried by arms 4 on a shaft 5 is adapted to be swung from one winding roller 1 to the other 11 and vice versa by spur gearing 7, 9 on the shaft 5 and a lower shaft 8, the shaft 8 carries a loose worm wheel 10 normally clutched to a hand-wheel 11 feathered on the shaft and displaceable along it against the action of a spring 12.  The worm wheel 10 engages a worm 15 fixed to a shaft 16 provided with a hand-wheel 18 by which it may be rotated in bearings 17 and the shaft 16 is free to slide in the bearings against the action of two equal springs 19 disposed between them and the worm 15.  In operation, the squeezing roller is moved over from one winding roller to the other by the hand-wheel 11 which is disengaged from the worm wheel 10 for the purpose and final pressure is applied by the second hand-wheel 18, the shaft 16, when the worm 15 can rotate the shaft 8 no further, being displaced in the bearings 17 so that one of the springs 19 puts pressure on the squeezing roller.
Patent GB-1029835-A (GB)
Title: Improvements in or relating to methods and machines for butt-welding tubes or bars to metal pieces
Inventor: DORRAT JAMES ANDREW
IPC: B23K11/04
Filed: 1961-05-30
Abstract: 1,029,835. Welding by pressure. RICHARDSONS, WESTGARTH & CO. Ltd. May 30, 1962 [May 30, 1961], No. 19509/61. Heading B3R. In butt welding tubes or bars to a large metal member, one side of an electric transformer secondary is connected to a clamp holding the tube &c. adjacent to or in contact with one surface of the member and the other side of the secondary is connected to two spaced points on the said surface. For welding tubes to seatings around holes in a tube plate 16, a tube 10 is held in a current conducting clamp 12 connected to one side of a transformer secondary and carried on an arm 38 and the other side of the secondary is connected to contacts 26, 27 on arms 40, 42, the tube being held adjacent a seat 36, Fig. 3. surrounded by a groove 34 and one contact being in the form of a spigot extending into a hole on one side of the tube and the other contact having an annular projection engaging the seat groove on the other side of the tube. The tube plate is rotated step-by-step by rollers 46. The two contacts may be identical.
Patent GB-1453534-A (GB)
Title: Container for liquefied gases
IPC: F17C13/00
Filed: 1974-05-03
Abstract: 1453534 Cryogenic tanks MESSER GRIESHEIM GmbH 3 May 1974 [8 May 1973] 19551/74 Heading F4P A cryogenic tank has its gas outlet, liquid withdrawal and filling pipes 9, 11, 10 arranged so that the tank can be used in both vertical and horizontal positions. The mouths 12, 15, 14 of pipes 9, 10, 11 are arranged in the same plane, the mouth 12 being adjacent the transition between end face 5 and the cylindrical wall 13, the mouth 14 being located on the opposite side of the container axis from mouth 12 and adjacent the transition between end face 7 and wall 13, and the mouth 15 being located near to wall 13 in the half of container 1 adjacent end face 5. A plurality of containers may be used in series, the gas pipe 12 of one being connected to the liquid withdrawal pipe of the next (Fig. 3, not shown), and both a single container and an installation with a plurality of cylinders can be mounted in wooden frames (Figs. 4 and 5, not shown).
Patent GB-195985-A (GB)
Abstract: 195,985. Ehmsen, H. April 7, 1922, [Convention date]. Adhesion compositions.-An adhesion composition for belt and friction gears comprises sodium silicate, magnesium silicate, porcelain earth, and potash. Red bole and animal oil may be added to give the composition a distinctive appearance. Aluminium silicate may be used instead of sodium silicate, and feather alum or porcelain earth may replace magnesium silicate; slaked lime may also be added. An example of suitable proportions is given.
Patent GB-421198-A (GB)
Title: Magneto electric machines especially for internal combustion engines
IPC: H02K21/12
Filed: 1933-07-11
Abstract: 421,198. Magnetos. BOHLI, J., 15, Dammstrasse, and STEINER, G., 6, Schererstrasse, both in Solothurn, Switzerland. July 11, 1933, No. 19602. Addition to 413,716. [Class 35] Magnetos according to the parent Specification are modified by the use, in place of the two shar-shaped members, of radial extensions of the flux conducting bars, or by the use of such extensions in place of one star member and the replacement of the second star member by another one which has shorter arms and enables the shorter set of bars forming a feature of the invention in the parent Specification to be dispensed with. As shown in Fig. 3, three inverted U-shaped laminated bars n have their longer limbs guided in the housing q and arranged alternately with the axial portions of the laminated bars s which, with bars n convey the flux to and from the star-shaped magnet c. The shorter limbs of bars n and the longer portions of bars s form the core g for the coil d and the radial portions of the bars of both sets are guided by ribs on the coil flanges x, x<1> In a modified form, all the bars are L-shaped and their radial portions have rounded ends to fit the ends of a separate coil core. In the form shown in Fig. 5, a cylindrical laminated core g is connected at the top to the radial extensions of bars n, o, p and at the other end to a pile of three-armed laminµ s which are substantially co-planar with axial extensions c<1> ... c<6> of the magnet arms which also co-operate with the lower ends of the bars n, o, p. The invention is also applicable to inductor type magnetos.
Patent GB-281747-A (GB)
Title: Vaporiser for heavy liquid fuels suitable for internal combustion engines including engines operated by light hydrocarbons
IPC: F02M31/18
Filed: 1926-08-09
Abstract: 281,747. Galasso, P. Aug. 9, 1926. Vaporizers, external.-Liquid fuel is admitted to a vaporizer by a nozzle 13 which is formed in the seating of a spring pressed triple-cone valve 10, opened by engine suction, the supply of fuel through a chamber in the vaporizer being further regulated by a hand-controlled needle valve. The valve 10 has an annular groove opposite the nozzle 13 to facilitate the flow of fuel. A choke tube 15 is provided and the lower conical surfaces of the valve and that of the choke tube may be replaced by paraboloidal surfaces as shown in Fig. 5. Air is admitted through two sets of holes 9, 11 and the mixture passes down an annular passage 24 where it is heated by an exhaust jacket 2a. Secondary air is drawn through a number of radial passages 27 which are connected to a tube 5 provided with a hand-controlled valve 26. A part 6 forming the inner wall of the passage 24 is removable so that impurities deposited on it may be scraped off. The flow of mixture to the engine is regulated by a valve 29, and a three-way valve 23 admits fuel at starting.