baber/WOPTO huggingface dataset:
Patent GB-614091-A (GB)
Title: Improvements relating to dynamo-electric machines, electro-magnetic slip couplings, electro-magnetic brakes and the like
IPC: H02K19/24
Filed: 1946-07-05
Abstract: 614,091. Eddy-current brakes. ENGLISH ELECTRIC CO., Ltd., and BALL, R. D. July 5, 1946, No. 20124. [Class 103 (i)] [Also in Group XXXV] A machine such as an alternator, synchronous motor, electromagnetic brake or slip coupling, has a set of imbricated polepieces carried by two rings, each of which is linked magnetically across a radial air-gap with one of a pair of spaced annular poles of opposite polarity, the polepieces co-operating with a further relatively moving member of the machine. As shown, the shaft 10 of an alternator or synchronous motor carries imbricated polepieces 12a and 13a magnetized by stationary pole rings 7a, 7b and the coil 8 and they co-operate with A.C. windings 2 on the-member 1 shown stationary. The latter could, however, be driven in the opposite direction to the imbricated polepieces to give double frequency in the case of an alternator, or both members may rotate in the same direction to serve as a slip coupling. In that case, the outer member may have a squirrel-cage winding or have an unlaminated core with or without teeth. There may be more than one exciting coil.
Patent GB-1202829-A (GB)
Title: Production of needle felt
Inventor: JONGH CORNELIS DOMINICUS DE
IPC: D04H13/00
Filed: 1969-04-21
Abstract: 1,202,829. Needle felt. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 21 April, 1969 [22 April, 1968], No. 20150/69. Heading D1R. Needle felt having a high mechanical strength a dimensional stability is produced by working with needles or pins one or more fibrous webs obtained by fibrillating a film predominantly consisting of polypropylene. Preferably the fibres of the web are mainly interconnected to form a network. Alternatively the web may consist completely of loose fibres. Suitably stretching ratios of the film before fibrillation are between 1:3 and 1:20 and a thickness of 0.01-0.2 mm is usual. Needling may be applied to a stack of fibrous webs in which all the webs are orientated in the same or different directions. Binding agents such as pulverulent polyethylene may be applied before or after needling. A web of crimped fibres may be obtained by the fibrillation of laminates in which all the layers are polypropylene or some are e.g. polyethylene, copolymers of propylene and ethylene, polyesters and polyamides.
Patent GB-348448-A (GB)
Title: Improvements in bushes for automatic lubricating axle boxes
IPC: B61F17/12
Filed: 1930-07-03
Abstract: 348,448. Lubricating vehicle-axle bearings. BRITISH ISOTHERMOS CO., Ltd., Scotswood Works, Newcastle-on-Tyne. -(Assignees of Soc. Internationale Isothermos Soc. Anon.; 1, Rue du Rhone, Geneva, Switzerland.) July 3, 1930, No. 20211. Convention date, July 4, 1929. [Class 12 (ii).] Lubricant automatically raised to a,collecting trough 21 on the upper surface of the bush of an axle-box overflows through notches 22, 23 into grooves 11, 12, 13 leading to ports 14, 15, 16 communicating with grooves 17, 19 in the bearing surface, the notches being at the same level so that the lubricant is distributed substantially uniformly. Each side notch 23 supplies two grooves 11, 12, the flow being divided by the rib 24 separating the grooves. Alternatively, the trough 21 may be constituted by a depression in the middle portion of a transverse groove 39, Fig. 6, at the front end of the bush, a rib 41 being formed across the groove 39 at each side of the trough. The upper surfaces of the ribs are level with the bottom of a notch 43 supplying the groove 13, and two grooves 11, 12 lead from each end of the groove 39. A wedge 46 supported on the upper surface of the bush is formed at its front end with a trough 47 into which the lubricant is led, this trough having an aperture located over the trough 21.
Patent GB-335970-A (GB)
Title: Improvements in or relating to the vulcanisation of artificial rubber like masses
IPC: C08J3/205
Filed: 1929-07-02
Abstract: 335,970. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). July 2, 1929. Vulcanizing synthethic rubber.-Rubber-like masses obtained by polymerizing hydrocarbons such as butadiene, or homologues or analogues thereof are vulcanized in the presence of an accelerator previously dissolved in a solvent, or admixed with a liquifying agent. This treatment of the accelerator results in a vulcanizate having improved stretch and breaking strength. Suitable solvents are water, alcohol, hydrocarbons, chlorinated hydrocarbons, ethers, weak acids, liquid bases; stearic acid is specified as softening agent. Numerous examples are given of the effect of vulcanizing butadiene rubber with various accelerators, both without solvents, and also in solution, or liquefied.
Patent GB-1179366-A (GB)
Title: Purification of Vapours Containing Fluorine Compounds
Inventor: ENGLISH MARTIN
IPC: C01B25/234
Filed: 1967-05-03
Abstract: 1,179,366. Purifying vaporized fluorine-containing compounds. L. A. MITCHELL Ltd. 26 March, 1968 [3 May, 1967], No. 20419/67. Heading B1L. Impurities in vapour streams which camprise fluorine compounds and water vapour are removed by scrubbing the vapour stream with an aqueous liquid which does not absorb the fluorine compounds but which does absorb the impurities, at such a temperature as does not cause substantial condensation of the water vapour present. Thus vapours from tank I containing HF, SiF 4  and water vapour as well as phosphoric acid as impurity pass to scrubber 5 where they are .scrubbed with aqueous fluosilicic acid of 30-70% concentration by weight, which absorbs the entrained phosphoric acid but does not absorb the HF or SiF 4 . Scrubbing conditions, e.g. pressures of 5-29 ins. Hg and temperatures of 25-95C are such that no condensation of water vapour occurs. Liquid effluent leaves by line 6 and is returned for further scrubbing by line 9. The purified vapour stream passes by line 13 to scrubber 14 where it is scrubbed with fluosilicic acid of less than 30% concentration. The HF and SiF 4  are absorbed therein and are subsequently recovered by conventional methods from the liquid effluent which passes by line 15 to vessel 16. The vapours passing on to scrubber 23 are condensed with water and passed to waste by line 24.
Patent GB-184685-A (GB)
Title: Appliances for playing a table golf game
IPC: A63F7/06
Filed: 1921-07-29
Abstract: 184,685. Spain, W. A. July 29, 1921. Table games.-A board for playing a table golf game is provided with a series of graduated guides and means for propelling a ball along the guides, the differ. ent guides being graduated on different scales to represent strokes with different clubs. As shown in Fig. 1, the balls D are propelled along wires A<1> - - A<6> by means of a bulb J which may be connected through a spring controlled union G to any one of the tubular supports B opening into the slide E, Fig. 2. In a modification, one guide only is used and the graduations are inscribed on the faces of a polygonal prism pivoted beneath the guide.
Patent GB-808354-A (GB)
Title: Sewing machine loop-taker
IPC: D05B73/12
Filed: 1955-11-24
Abstract: 808,354. Sewing machines. SINGER MANUFACTURING CO. Nov. 24, 1955 [Nov. 29, 1954], No. 20460/57. Divided out of 808,351. Class 112 Stitch forming devices. A loop taker 264 has a circular interior wall concentric with its vertical axes of rotation and provided with a circular inwardly extending rib 277. A scarf like channel 276 extends through the wall and rib so that a loop seizing beak 219 is formed at one end of the latter. At the other end the internal radius of the rib increases over the last thirty degrees in approaching the channel so that the rib ultimately vanishes whereby to provide needle loop clearance. An indentation is provided in the rib at the point where the needle enters the loop-taker. The bobbin case 283 is formed with peripheral arcuate ribs 288, 289 which engage the upper and lower sides of the rib 277 and are struck from the same centre as the latter; they extend over less than 180 degrees. An inverted U-shaped member 299 straddling the rim of the loop-taker has one limb arranged externally of the latter and provided with a base member 300 secured to the loop-taker carrier, and another limb entering the loop-taker and formed with a thread-supporting bar 303 provided with an upwardly extending abutment 304 engaging a part 305 of the bobbin-case to prevent clockwise movement thereof. Anticlockwise movement is prevented by a member 306 having an arm 308 slidingly received in a groove in a part 310 of the machine frame and carrying an abutment member 321 formed with a vertical arm 322 engaging a flange 323 on the bobbincase. The arm 322 is provided with a downwardly depending lobe 324 which co-operates with the flange 323 of the bobbin-case to control the upper limb of the needlethread-loop until the needle-thread takeup commences to draw up the loop from the lobe and the beak 219 as the needle leaves the work. As the loop is closing it is engaged and controlled by the finger 335 on the bobbin-case to prevent it becoming fouled. The arm 308 of member 306 is notched to receive the eccentric head 319 of a pin 316 which may be turned to adjust the position of the arm. One limb of a U-shaped leaf spring 311 presses downwardly on the arm to retain it in the frame 310. The member 306 may be tilted upwardly, as shown in broken lines, against the action of the leaf spring, by means of a finger piece 325 on the abutment member 321. The bobbin-case may then be removed. Specification 808,353 is referred to.
Patent GB-575268-A (GB)
Title: Screw propeller, particularly for aircraft
IPC: B64C11/04
Filed: 1943-12-07
Abstract: 575,268. Screw propellers. REISSNER, H. Dec. 7, 1943, No. 20466. [Class 114] The pitch of the blades of a propeller is varied automatically under the influence of centrifugal force, torque and thrust, each blade 15 being supported on the hub by an axis disposed at a small angle to the centroid axis, the axis being supported by a bearing 18 and by an outer shell 24 slidably embracing a hemispherical shell 21 rotating with the shaft, the shell 24 having a socket containing a ring 26 eccentric to the axis, this ring having opposed tongues slidable in grooves in the shell 21. The shell 21 carries a bevel wheel 22 driven from a gear wheel 39 on the hub through differential gearing comprising a fixed pinion and a pinion 43 mounted on a ring movable by a rack 50. The orientation of the slots can thus be adjusted to vary the equilibrium conditions. Alternatively, the shell may be driven from the hub through an elastic connection which may be held in abnormal position by a brake to give orientation suitable for reversed thrust position. A counter-rotating propeller assembly may be used, with differential pitch-adjusting gear common to the two shells 21, and an idler gear conveying counter-rotation. A worm may replace the rack 50, its linear movement effecting rapid major adjustments and its rotary movement slower minor changes. Specification 499,932 is referred to.
Patent GB-579198-A (GB)
Title: Improvements in or relating to optical measuring apparatus
IPC: G03B21/00
Filed: 1943-12-09
Abstract: 579,198. Optical-projection apparatus. ELLIOTT, G. E. C., and ALLTOOLS, Ltd. Dec. 9, 1943, No. 20630. [Class 97 (i)]. [Also in Group XIX] An apparatus primarily intended for measuring lengths, angles or arcs by forming an image of the length &c. on a calibrated screen may also be used for marking out by projecting an image of the scale and/or other markings on to the work, which may be sensitised. The apparatus comprises an objective 6 having limited depth of focus, a calibrated image screen (not shown) mounted in the aperture 12 so as to be capable of lateral or rotary movement for zeroising, and a viewing microscope 27 mounted for vertical and horizontal adjustment. For projecting, the microscope 27 is replaced by a source of light and an image of the calibrated screen or of a scale drawing of a portion of the work is projected on to the work. The distance between the calibrated screen and lens 6 is fixed so that the magnification of the scale is constant, focusing being effected by moving the apparatus bodily along rails 15. The focusing mount 7 may be used to alter the magnification for use with differently calibrated scales. Specification 560,719 is referred to.
Patent GB-1235376-A (GB)
Title: High molecular weight polyamides
Inventor: HARRISON MICHAEL EDWARD
IPC: C08K3/32
Filed: 1968-05-01
Abstract: 1,235,376. Polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 1 April, 1969 [1 May, 1968], No. 20668/68. Heading C3R. During the production of a high M.W. fibre-forming polyamide or copolyamide (A), one or more substantially insoluble hydrogen phosphates (B) are added. " Substantially insoluble" is defined in terms of the proportion of P retained in a standard yarn after a standard immersion of the latter in water. The metal or other radical and the phosphate radical of (B) are present in substantially stoichiometric ratio. (B) may be added as such or be formed in situ; it may be added as a slurry or as a mix of stoichiometric amounts of hydrogen-phosphate forming salts (C). (B) may be added to the polymerization mixture, or e.g. by coating on polymer chips before melting and extrusion. There may be 10-1000 wt. parts (B) per million parts (A). In a continuous polymerization process, (B) may be added as a slurry to the entrant monomer solution or at any convenient point along the length of the polymerization zone; or salts (C) may similarly be added, together or separately, at convenient points. Exemplified substances (B) are CuHPO 4 , Cu- (H 2 PO 4 ) 2 , BaHPO 4 , Ba(H 2 PO 4 ) 2 , SrHPO 4 , MgHPO 4  and CoHPO 4 . Contrasting, less insoluble, substances are Na 2 HPO 4 , CaHPO 4 , and ZnHPO 4 . Salts (C) may be Na hydrogen phosphate and Mg or Ca acetate. When Cu hydrogen phosphates are used, a source of I, e.g. KI, is preferably present; these substances reduce yarn degradation on heating e.g. oxidative degradation or gel formation. (B) accelerates polymerization and increases M.W. of the polymer, and re-elevates the R.V. of a polymer to which excess basic material, e.g. H 2 N- (CH 2 ) 6 -NH 2 ) has been added to increase acid dyeability. Also present may be TiO 2 . The (co)polyamides (A) may be derived from or m - xylylenediamine; sebacic, adipic, 1,4- diphenyladipic, isophthalic, or terephthalic acids, or # - caprolactam or # - aminoundecanoic acid. The polymers may be prepared e.g. by heating hexamethylene diammonium adipate solutions in an autoclave, and may then be melt spun and drawn. Films may also be meltextruded.
Patent GB-1530855-A (GB)
Title: Step member for tractors
IPC: B60R3/00
Filed: 1977-05-17
Abstract: 1530855 Tractor steps GENERAL MOTORS CORP 17 May 1977 [4 June 1976] 20673/77 Heading B7B In a tractor step designed to avoid damage on encountering an obstacle, a flexible cable 36 carrying a foot supporting member 58 has its ends secured to brackets 42, 44 which are pivotally mounted on a tractor frame 30 to permit pivotal movement of the foot supporting member in a vertical plane.
Patent GB-1269428-A (GB)
Title: Hydroxyalkyl aryl alkanoates and benzoates and their use as stabilizers for organic material
IPC: D06M13/44
Filed: 1970-04-29
Abstract: 1,269,428. Hydroxy alkyl aryl alkanoates and benzoates. J. R. GEIGY A.G. 29 April, 1970 [30 April, 1969], No. 20705/70. Heading C2C. [Also in Division C3] The invention comprises compounds of Formula I and Formula II where R 1  is alkyl C 1-6 , R 2  is hydrogen, alkyl C 1-6 , cycloalkyl C 5-8 , R 3  is hydrogen or alkyl C 1-6 , A and A<SP>1</SP> are each alkylene C 1-6 , Z is -O-, -S-, -SO- or -SO 2 - or an alkylidene C 3-13  radical, n is 0 or 1, m is 0 or 1 and n+m is 1 or 2, with the proviso that when n is 0, Z is not an alkylidene radical. They are prepared by reacting the appropriate diphenol or dihydroxybenzene ether, sulphide, sulphone, sulphoxide or alkane with a hydroxyalkyl arylalkanoyl halide or a benzoyl halide. Compounds I and II act as antioxidants.
Patent GB-852786-A (GB)
Title: Lock for a double bed hand knitting appliance
IPC: D04B15/36
Filed: 1958-06-27
Abstract: 852,786. Hand knitting machines. GIRARDELLI, K. June 27, 1958 [Feb. 1, 1958], No. 20817/58. Class 74 (2). The clearing cam on each lock of a double flat bed hand knitting device is formed by two triangles 15, 16, arranged side by side on bolts 21, 22, and each movable, perpendicular to the plane of the needle bed, between two extreme positions in which it is retained by a spring 23 and a ball catch 25 respectively. Parts 19, 20, bent at an angle to the general plane of the triangles, provide for a guided displacement of those needles which do not slide into the needle channel. The apices 17, 18 of the triangles are rounded off or flattened.
Patent GB-294384-A (GB)
Title: Improved process of and apparatus for discharging sand or the like from boats or other vessels
IPC: B65G53/30
Filed: 1927-08-08
Abstract: 294,384. Wade, H., (Sensibar, J. R.). Aug. 8, 1927. Transmitting pulverulent material by pumping in a liquid medium.-To facilitate the discharging of sand &c. from vessels by pumping with water, a well 11 extending above the deck is provided with a series of valve-controlled inlets 22 for the sand, an inlet 17b for water, and a suction pipe 19<c> connected with a pump. There may be a, number of such wells fore and aft of the vessel. The inlet 17<b> is below the water-line and is controlled by a valve 17. The suction pipe is controlled by a valve 19. The sand-inlets 22 are controlled by hinged valves 25, Fig. 3, which are pressed against .narrow seatings by toggle mechanism. Each valve is pivoted at 26 and actuated by an adjustable link 38 at each side, pivoted to the valve at 39 and to actuating links 30 at 29. The pivots 29 are also connected to radius links 27 turning about pivots 28 on the casing. The valve opens gradually, and in closing is locked against the seating by the link 38 moving into or beyond the dead centre. The links 30 are actuated by bell-crank levers through rods extending to the top of the well. During pumping, water is sprayed on to the sand around the well.
Patent GB-1002251-A (GB)
Title: Improvements in master cylinders
Inventor: BENT WILLIAM HAROLD
IPC: B60T11/232
Filed: 1961-06-09
Abstract: 1,002,251. Hydraulic brakes; clutch control. DUNLOP RUBBER CO. Ltd. June 1, 1962 [June 9, 1961], No. 20865/61. Headings F2F and F2L. In a master cylinder for an hydraulic braking system, a seal 9 is fitted between the piston 5 and the cylinder 1 and is axially slidable relative to the piston over a limited distance determined by the clearance between the rear face of the seal and the front face of the piston to permit fluid from a reservoir to flow behind the seal into the cylinder via an inlet port 3 from a reservoir (not shown) and radial holes 13 when the seal is in its axially forward position relative to the piston, the flow being interrupted when the seal is in the axially-rearward position at which position, when the piston is fully retracted, a relief vent 4 leading from the reservoir is adapted to connect the cylinder on the operative side of the piston. Movement of the piston 5 to the right causes the seal to remain stationary with respect to the cylinder until the clearance space between the rear face of the seal and the front face of the piston has been taken up. A reinforcing ring 10 is provided at the outer periphery of the seal. The Specification discloses a tandem master cylinder in which both pistons are provided with a similar seal.
Patent GB-841366-A (GB)
Title: Improvements in iron aluminium alloys
Inventor: RICHARDSON WILLIAM HENRY
IPC: C22C28/00
Filed: 1957-07-02
Abstract: Iron-aluminium-manganese alloys have compositions, in per cent by weight, within the follong range:  .Al.over 6.0 and up to 20.0 .Mn.18.0-40.0 .C.0.15-2.0 .Nb.up to 4.0 .Si.up to 3.0 .N.up to 1.0 .Fe and impurities the balance.. The alloys may also contain one or more of Be, Co, Ni, Mo, W, V, Cu, Ta, Ti, Zr up to 10.0 each and up to 15.0 in total, and up to 5.0 Cr, up to 2.0 B and up to 2.0 Ce. The alloys may be hot worked in the temperature range 950-1250 DEG C, solution treated in the range 800-1250 DEG C and quenched in oil or water.  The alloys may then be cold worked and hardened in the range 400-700 DEG C. Among the uses of the alloy referred to are compressor blades and discs, aero engine bearing housings, spings, hot-forging dies, gears, valve seat inserts.  The Provisional Specifications describe also alloys containing 2-40 of Mn, which alloys may also contain Mg.
Patent GB-423663-A (GB)
Title: Improvements in and relating to the production of magnesium sulphate
IPC: C01F5/40
Filed: 1933-07-25
Abstract: Magnesium sulphate is obtained by reacting calcium sulphate and magnesite in the presence of water and carbon dioxide.  Reaction may be effected with stirring and with moderate heating, and the carbon dioxide be supplied under pressure.  The solid reactants may be finely ground.  Reference has been directed by the Comptroller to Specification 222,110, [Class 1 (iii)].
Patent GB-1085055-A (GB)
Title: Machine for cleaning footwear and other articles
IPC: A47L23/02
Filed: 1963-05-25
Abstract: 1,085,055. Shoe cleaning machines. K. W. H. GEDDES. May 21, 1964 [May 25, 1963], No. 20984/63. Heading A4F. A shoe cleaning machine comprises a cabinet 1 containing brushes 10, 11 for polishing black and brown footwear, respectively, and mounted on a horizontal rotary shaft 7 driven by an electric motor 3 through a belt drive 6, and projecting above the cabinet 1 a footrest 14 carrying polish containers 17. Polish is applied to a shoe on a foot placed on the footrest 14, and the foot is then placed beneath one of the brushes 10, 11 for polishing the shoe. The motor 3 is controlled by a foot operated switch 19 which may alternatively be coin-actuated. As a further modification one or both brushes may have at one or both ends a section of stiff bristles for removing dirt and mud from footwear, also in place of or in addition to a brush there may be provided a cylinder or disc covered with a polishing material such as lamb's wool or velvet. Alternatively the brush shaft may be vertical and carry one brush only, or three brushes and three polish containers may be provided.
Patent GB-358906-A (GB)
IPC: H01F38/26
Filed: 1930-07-11
Abstract: 358,906. Transformers. KOCH & STERZEL AKT.-GES., 40, Zwickauerstrasse, Dresden, Germany. July 11, 1930, No. 21076. Convention date, July 27, 1929. Addition to 356,693. [Class 38 (ii).] Relates to voltage transformers for use on high-tension circuits in which the high-tension winding is arranged on an insulating spool and the connection to the high - voltage line is brought out from the inner layer of the winding as described in the parent Specification, and consists in forming the spool in two singleflanged parts 110, 111 inversely telescoped together, thus enabling the winding to be built up from a series of former wound coils 112, 113, 114 that are slipped over the outer spool part before the inner one is placed in position. The two spool parts are then cemented or otherwise secured together, screw-thread or similar formations being provided on their adjacent surfaces to assist in locking.