baber/WOPTO huggingface dataset:
Patent GB-145072-A (GB)
Title: Improvements in and relating to the suppression of sparking at the interruption of conductors traversed by a current
IPC: H01H9/30
Filed: 1920-06-16
Abstract: 145,072. Siemens - Schuckertwerke. July 29, 1915, [Convention date]. Sparking, preventing.-A counter electromotive force, impressed upon the circuit at the moment of interruption, is produced by an electro-dynamic appliance such as a coil with a movable iron core or a suitably-connected dynamo-electric machine. In the simplest form, shown in Fig. 1, a coil b connected in the circuit to be interrupted attracts an iron core c attached to the movable member c of the switch a. When a latch d is released, the switch is pulled open and during the movement a counter electromotive force is generated in the coil b which partly neutralizes the sparking effect. Fig. 2 shows an arrangement having a series-wound direct-current motor f adapted to open the switch through mechanical gearing g, h upon the release of a latch d. The back electromotive force of the motor provides the compensating effect. The geared member h may be arranged to operate the switch lever by impact after the motor has travelled through a certain distance, so as to get an adjustable counter effect. The arrangement shown in Fig. 3 employs an independently-excited motor f of which the armature is normally short-circuited by an auxiliary switch m. To open the main switch e, the auxiliary switch m is first opened, causing the motor to start. After a certain travel an adjustable tappet k on the geared member h knocks off the switch lever by impact. A brake n may be brought into action by the movement of the member h so as to stop the motor after a definite time. In the arrangement shown in Fig. 4, the motor remains connected in a shunt circuit after the main switch is opened, and the energy of the motor as it runs down mav be used for reclosing the switch.
Patent GB-583811-A (GB)
Title: Improvements in and relating to fire-retardant treatments for organic fibrous materials, such as fibres, fabrics and wood
IPC: D06M11/47
Filed: 1943-10-05
Abstract: 583,811. Fireproofing. JORDAN, L. A., and O'NEILL, L. A. Oct. 5, 1943, No. 16339. [Class 140] Organic fibrous materials such as fibres, fabrics, or wood are rendered fire-resistant by precipitating therein both iron and antimony oxides by the action of an aqueous alkali solution on a previously applied mixture of an iron salt such as ferrous sulphate and a compatible, watersoluble antimony salt in which antimony forms the positive radicle, the mixture having been applied as an aqueous solution and dried. The antimony compound may be the trifluoride, the double salt of this compound with sodium, potassium or ammonium fluoride, antimony pentafluoride, or .an organic antimony compound such as the lactate. The alkali may be sodium carbonate. The fabric may be further treated with chlorinated organic compounds such as a solution of chlorinated rubber or an aqueous emulsion of chlorinated paraffin wax, or with an aqueous dispersion of antimony oxide or sulphide with casein or glue, subsequently insolubilized with formaldehyde. Specification 579,328 is referred to.
Patent GB-586568-A (GB)
Title: Improvements in axial flow compressors
IPC: F04D19/02
Filed: 1942-11-20
Abstract: 586,568. Air compressors. BAUMANN, K., WALKER, G. W. HIGGS-, ATKINSON, M. B., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 20, 1942, No. 16485. [Class 110 (i)] The " stator " blades a at the inlet end of an axial flow compressor are mounted so as to be free to rotate under the action of the incoming air. The blades are carried by a cylinder A carried, through blades ao, by a disc AR mounted on bearings BA. The cylinder A may be embraced by a band-brake A<1> so that it may be held from rotation. The bladings may be as described in Specification 586,560.
Patent GB-120443-A (GB)
Title: Improvements in or relating to Variable-speed Gear Mechanism for Cycles.
IPC: B62M25/00
Filed: 1917-11-10
Abstract: 120,443. Mew Hudson Cycle Co., Tisdell, T. A., and Price, A. A. Nov. 10, 1917. Variable-speed gearing, of the kind arranged in the bottom bracket of the frame, is mounted in a part which is adapted to be removed from, and to be replaced and fixedly secured within, the bracket. The carrying-part may comprise a box a permanently closed at one end and provided with a detachable plate a' at the other end, the crank-shaft b and a secondary shaft being mounted in the box and fitted with gear-wheels to provide the variable gear. As shown, the secondary shaft is fitted with a rotatable sleeve f carrying gearwheels f<1>, f<2>, f<3> adapted to mesh with wheels c<1>, c<2>, c<3> upon the crank-shaft; the wheel c<2> is formed on a clutch-sleeve slidably keyed to the shaft, and the wheels c', c<3> are rotatably mounted on the shaft, the wheel c<1> being secured to the sprocket-wheel d. With the parts in the position shown, the drive is through the wheels c<2>, f<2>, f<1>, c<1>. For the direct drive, the clutch-dogs c<5>, c<8> are engaged, and, for a third speed, the dogs c<6> are engaged with the dogs c<9> and the drive is then through the wheels c<3>, f<3>, f<1>, c<1>. The displacement of the wheel c<2> may be effected by a fork mounted to slide on a transverse shaft and actuated by a bell-crank lever. All of the gear-wheels may, however, remain permanently in mesh and sliding clutch-members be provided for locking the crank-shaft wheels to the shaft; or a low-speed gear or an epicyclic gear may be employed. The sleeve f may be omitted and the wheels f, f<2>, f<3> mounted on a rotatable shaft. The box may be secured within the bracket, as by splitting the bracket and drawing the end together. According to the Provisional Specification, the operating-fork is fixed to a rod adapted to slide axially of the gear.
Patent GB-800917-A (GB)
Title: Improvements in propelling and steering ships
IPC: B63H25/38
Filed: 1957-05-24
Abstract: 800,917. Propelling ships. COSTA, L., and MAIER, E. May 24, 1957 [May 25, 1956], No. 16592/57. Class 114. A propulsion pear B behind a ship's propeller P provides two or more damming stages K, K 1 , K 2 . The device may be applied to a balanced rudder R. In a modification, the first damming stage K overlaps the propeller hub N and the second stage K 1  is articulated to turn with the rudder R. The pear may be carried by arms projecting from the ship's hull.
Patent GB-1515829-A (GB)
Title: Starting material for manufacturing shaped and hydrothermally hardened products and a method of producing such a starting material
IPC: C04B28/18
Filed: 1977-04-21
Abstract: 1515829 Hydrothermally hardenable starting material ADVANCED MINERAL RESEARCH AB 21 April 1977 [28 April 1976] 16593/77 Heading C1H A starting material for manufacturing shaped and hydrothermally hardened products comprises a mixture of: (a) material of the olivine type finely divided to a powdered product having a specific outer surface of at least approximately 25,000 cm<SP>2</SP>/cm<SP>3</SP>, measured in accordance with the permeability method, e.g. 50,000 to 200,000 cm<SP>2</SP>/cm<SP>3</SP>; (b) finely divided silica material in a quantity which is at most equal to the solid volume of the said powdered product and having such a small particle size that at least a predominant portion of the silica reacts during the hydrothermal treatment process; and (c) ultra-basic rock and/or ultra-basic slag material finely divided to a particle size of 80% smaller than 200-1000 /Ám and comprising from 50 to 80% of the total solid volume of the mixture. Components (b) may have a particle size distribution of 80% smaller than 13À5 Ám and comprise 1 to 7% of the total solid volume of the mixture. Quartzglass fibres may be used, whereby unreacted portions of the fibres may form reinforcing filaments in the product. Component (c) may also be of the olivine type. The mixture preferably includes a strongly basic substance e.g. slaked lime in a quantity sufficient to increase the pH of the mixture to a value above 10. The Example is directed to the production of plates for building purposes from a starting material of the invention consisting essentially of 97% by weight natural olivine (in two grades of fineness) and 3% silica. Shaped plates produced by pressing the moist mixture were dried for 5 hours at a temperature of approximately 100C and then hydrothermally treated with steam in an autoclave at 205C during half an hour.
Patent GB-992454-A (GB)
Title: Pop-up cone tree
Inventor: HERRICK DONALD WILLIAM
IPC: A63H33/00
Filed: 1964-04-22
Abstract: 992,454. Constructional toys. LINK RESEARCH & DEVELOPMENT CORPORATION. April 22, 1964, No. 16600/64. Heading A6S. A constructional toy comprises a hemispherical base 10 supporting a central pillar 12 on which hemispherical elements 14 to 24, inclusive, may be assembled prior to being ejected, through the medium of a tension spring 56 in said pillar, by a member 50 released by a trigger lever 64.
Patent GB-442711-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F27/32
Filed: 1935-06-07
Abstract: 442,711. Transformers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 7, 1935, No. 16606. Convention date, June 9, 1934. [Class 38 (ii)] Comprises a transformer having its windings distributed over two or more limbs of the core, the neutral being insulated, in which the H.T. winding on each limb is in the form of a number of concentrically arranged cylindrical coils 3 with the coil next to the L.T. winding 1 connected to the neutral, the individual coils of the H.T. winding being insulated from one another by one or more layers 4 of absorbent paper, the thickness of which increases approximately in proportion to the voltage along the limb. The coils may increase in length towards the outside of the winding, the extremities of the coils lying approximately on a circular arc. The ends 2 of the insulation layers project and are bent over. A method of building up an insulation layer is described. Aluminium conductors with oxide insulation may be used.
Patent GB-700497-A (GB)
Title: A device for use in the manufacture of precast prestressed concrete units
Inventor: SEARCHFIELD STEPHEN FREDERICK
IPC: B28B23/02
Filed: 1952-07-02
Abstract: 700,497. Prestressed concrete. LAING & SON, Ltd.,J. Oct. 21, 1952 [July 2, 1952], No. 16658/52. Class 20 (4) A positioning - device for pre-stressed reinforcing wires comprises a tube A having transverse slots B for receiving the wires and spaced according to the required spacing of the wires, with a rod C or the like passed between the inner wall of the tube and the wires to hold the wires in the slots. The device is then lowered into the spacing frame D.
Patent GB-539433-A (GB)
Title: Improvements in and relating to carburetters for internal combustion engines
IPC: F02M7/26
Filed: 1938-06-03
Abstract: 539,433. Spray carburetters. BECK, L., BERTELE, L., and DUSTERLOH, A. June 3, 1938, No. 16675. Convention date, June 5. 1937. [Class 7 (iii)] In a carburetter in which a main nozzle 3 is dimensioned to supply fuel at low speeds, and an auxiliary nozzle 7 supplies fuel at higher speeds when a baffle plate 10 obscures an orifice 9 for braking-air, the nozzle 7 is located in the Venturi tube adjacent the main nozzle 3 on the side of the throttle remote from the engine and the supply of braking air increases as the throttle valve opens. The fuel supply to the main nozzle is through a passage 2 leading to a float chamber 1 whereas the supply to the auxiliary nozzle is through a passage 6 located above a well fed through a passage 4. In addition to the braking-air supplied through the orifice 9 a further supply of braking air enters through an adjustable orifice 8 which is always open. If preferred, the main nozzle may receive fuel from a well.
Patent GB-1058111-A (GB)
Title: Improvements in or relating to the purification of gelatin
Inventor: KLINGER GUENTHER HAROLD
IPC: G03C1/047
Filed: 1964-04-22
Abstract: An inert gelatin is prepared by treating sulphur-containing gelatin with an unsaturated organic compound containing an active double-bond capable of addition to mercapto groups thereby converting them to sulphide groups. Specified active compounds are N-aryl- and N-alkyl-maleimides, vinyl esters <FORM:1058111/C3/1> wherein R is alkyl or aryl, vinyl ethers H2C = CH-O-R (R is alkyl or aryl), vinyl sulphone C2H5.SO2.CH : CH2 and divinyl sulphone CH2 : CH.SO2.CH : CH2, dihydropyrane of the formula <FORM:1058111/C3/2> and alkyl and alkoxy derivatives thereof, dihydrofurane of the formula <FORM:1058111/C3/3> and alkyl derivatives thereof, 2,5-diethyleneimine-quinone of formula <FORM:1058111/C3/4> ortho-iodosobenzoic acid and N-2,4-dinitroanalinomaleimide. The treated gelatin is useful in the manufacture of photographic materials.  It is stated that the treatment according to the invention may also be applied to casein, zein, albumin and various other proteins.
Patent GB-624273-A (GB)
Title: Improvements in or relating to compressor systems
IPC: F04D29/58
Filed: 1947-06-24
Abstract: 624,273. Axial-flow compressors; elasticfluid turbines. FLETCHER, A. H. June 24, 1947, No. 16698. [Classes 110(i) and 110(iii)] A compressor and one or more aircoolers are incorporated in a unitary structure which includes a chamber surrounding the compressor, whence air passes to the cooler at low velocity, and a diffuser connecting the compressor outlet and the surrounding chamber. The arrangement is particularly suitable for the low-pressure compressor in gas turbine plant, and the structure may incorporate combustion chambers for reheating the exhaust gases from the high-pressure unit before they enter the turbine driving the compressor in question. In the embodiment shown, a diffuser 20 is arranged as an extension of an axial-flow compressor 10 driven by a turbine 12, and discharges into a chamber 36 formed by an additional casing 21 surrounding the compressor and the outer wall of the diffuser, this chamber communicating at 26 with an intercooler 14 at each side; guide vanes 37 are placed in the diffuser outlet. Combustion chambers 15 for heating the gas entering the turbine 12 are located between and above the intercoolers, and all the members are connected by a structure 24 which incorporates the turbine inlet and carries end doors for the intercoolers and combustion chambers, the doors for the latter serving to locate the nozzles 32 of the flame tubes by means of spigots 33 thereon. The casing 21 is slidably mounted on the inlet end of the compressor, to allow for differential expansion, and the air in the chamber 36 is insulated from that in the compressor inlet 16 by lagging the compressor casing or forming the latter as a double-walled structure through which coolant is circulated, differential expansion between the compressor casing and rotor being thus minimised.
Patent GB-318876-A (GB)
Title: Improvements in or relating to electrostatic loud speakers and the like
IPC: H04R19/00
Filed: 1928-06-08
Abstract: 318,876. Reisz, E. June 8, 1928. Condenser telephones.-In an electrostatic loud-speaker of the kind comprising a thin, untensioned membrane 1 with a conductive coating and a rigid, perforated, conducting plate 2, the perforations 3 are opened out, as shown, in a round line or curve in the direction of the membrane. The plate 2 is preferably perforated by a tool which first removes the material around the holes, and only actually breaks through the plate to form the holes after it has penetrated to the required depth of the countersinking. Material is thus perforated in sheets, from which loud-speaker discs 2 are stamped. The membrane 1 is preferably formed of rubber of 0.04 to 0.05 millimetres thickness. Specification 303,131 is referred to.
Patent GB-347293-A (GB)
Title: Improvements in guns for firing at elevated moving targets
IPC: F41G5/08
Filed: 1930-04-30
Abstract: 347,293. Anti-aircraft gunnery. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Aktiebolaget Bofors ; Bofors, Sweden.) April 30, 1930, No. 16734/29. Addition to 344,903. [Classes 92 (i) and 92 (ii).] The motor-driven gears L, M, and L<1>, N for obtaining elevation and lateral deflection in accordance with the method of aiming at aerial targets described in the parent Specification are so controlled that the ratio of transmission for each gear is automatically varied to suit the instantaneous value of the angle of gun elevation. The apparatus of the parent Specification is thus adapted for dealing with targets at high angles of elevation. In the apparatus shown, the slides R, T of the parent Specification are automatically adjusted by cam slots x<2>, x<3>, moved by a screw y rotated by the elevating pinion C through a shaft z.
Patent GB-1095036-A (GB)
Title: Improvements in or relating to a method of making cast-iron
IPC: C22C37/00
Filed: 1965-04-21
Abstract: Iron containing austenite stabilizers such as nickel, chromium, vanadium or manganese and a low content of carbon and silicon is cast to have an austenitic-martensitic microstructure, without ledeburite or graphite, and is then heat-treated to precipitate carbon from the martensite in the form of globular secondary graphite.  Particularly suitable compositions are those containing <TABS:1095036/C6-C7/1> When nickel is present a nickel-rich segregate may be formed at the grain boundaries as a result of heat-treatment, thereby increasing abrasion resistance.  Heat treatment of the cast material may consist of an anneal at 900 DEG C. for 45 minutes followed by furnace cooling, or the casting after solidification may be cooled at not more than 250 DEG C. per hour.  Alternatively to produce a sorbitic structure and improve the elastic limit of the material it may be annealed for 1 hour at 800 DEG -1000 DEG C., cooled in air to 600 DEG C., heated to 750 DEG C. and finally cooled at 100 DEG C. per hour.
Patent GB-594841-A (GB)
Title: Improvements in or relating to cigarette, pipe and like lighters
IPC: F23Q2/34
Filed: 1945-07-02
Abstract: 594,841. Frictional igniters. CULKIN, J., and PARKER, A. J. July 2, 1945, No. 16782. [Class 75 (iii)] A lighter of the type having a wick impregnated with fuel, a flint and a flint wheel, is provided with a movable spill with its outer end capable of location near the wick so that the latter can ignite the spill. The spill 15 may be raised by depressing a device 16 against the action of a flat spring 19 till a friction plate 17 provided with a projection 24 engages the spill, and then sliding the device upwardly. A housing 22 is provided having a tongue 21 working in a slot 23 to guide the device 16 and its associated parts, and the spill can be raised in stages by applying thumb pressure and upward movement, retracting the device and applying pressure to raise the spill again. The spill 15 which may be of wood or compressed paper may be coiled in a compartment 3 with a sliding cover 5 below a fuel container 2 with a screw stopper 4, and the guideway 13 may have taper 14 at its upper end to exert a slight wedging action.
Patent GB-974839-A (GB)
Title: Apparatus for moulding footwear
IPC: A43D95/12
Filed: 1961-05-09
Abstract: 974,839. Conditioning and attaching sole blanks to uppers. INTERNATIONAL VULCANIZING CORPORATION. May 9, 1961 [March 22, 1961], No. 16812/61. Heading B5A. A moulding apparatus comprises a pair of diametrically opposed lasts L supported above a split sole mould mounted in the support 64 for rotation about a horizontal axis. The support is movable heightwise by the handle 48 to lower the last situated opposite mould into engagement therewith. The moulding apparatus is combined with a sole blank conditioner attached to the moulding apparatus, the operation of the conditioner being effected automatically in timed relationship with the depression of treadle 46 which initiates the moulding cycle. The conditioner comprises a rectangular boxlike base 16 attached to the bed plate 10 by L- shaped brackets 14, on which are mounted frames having gable-shaped ends 21 and perpendicularly disposed legs 22. A flat heating element 18, which may be a glass plate or panel coated with an electrically conducting material is provided, the radiation therefrom being preferably of a long infra-red wavelength. A V- shaped reflector 20 is situated beneath the heating element. A grid 26 is supported parallel to the heating element 18 by two L-shaped brackets 28 attached to the legs in such a manner that they are movable heightwise as also are the legs 22 with respect to the base 16. Each of these heightwise movements are effected by slots cut in the legs 22. A second reflector 34 hinged about the upper end of the legs 22 at one side of the base, is disposed above the grid 26 and in its operative position rests on the frame 21 while in its inoperative position it is tilted upwardly about its hinges, the tilting being effected by the movement of a piston in the cylinder 44. The extension of the piston 42 acts through the linkage 40 on the arm 38 which is attached to the mid-point of the side edge of the reflector 34. A sole blank is placed on the grid 26 of the conditioner while a previously conditioned blank is placed in the mould which has been closed by the depression of the treadle 46, the lasted upper being brought into engagement with the rim of the mould. A second depression of the treadle 46 raises the bottom of the mould to bring the sole blank in contact with the lasted upper in the attaching process. During the attaching operation a sole blank, having been placed in the conditioner, is conditioned by heating for a predetermined time, the reflector 34 being moved in and out of its operative position by the action of the piston in the cylinder 44 which movement is in timed relationship to the closing and opening of the mould. The effect of radiation on the sole blank from the heater is negligible while the reflector 34 is in its inoperative position. Specification 763,847 is referred to.
Patent GB-983183-A (GB)
Title: Improvements in or relating to process and apparatus for forming an impregnated fibre product
Inventor: KRUMSIEK HAROLD ANDREW
IPC: D21F11/02
Filed: 1961-05-09
Abstract: An impregnated fibre product, suitable for use in making insoles, comprises fibres of various lengths and finely-divided non-fibrous solids uniformly distributed through its thickness. The non-fibrous solids may be fillers, antioxidants or zinc oxide; the impregnant may be natural or synthetic rubber.  The product may be printed to resemble leather.  For method of manufacture, see Division D2. Specification 873,647 is referred to.
Patent GB-108415-A (GB)
Title: Improvements in or relating to Dry Mash Hoppers for Feeding Poultry.
Inventor: BURN-MURDOCH JAMES HENRY
IPC: A01K39/012
Filed: 1916-11-24
Abstract: 108,415. Murdoch, J. H. Burn-. Nov. 24, 1916. Feeding-appliances for animals.-Relates to a dry mash hopper adapted for feeding poultry of all sizes. The reservoir consists of a back b, ends c, and front d all secured to a base a and closed by a lid r. The trough is formed with movable front boards such as j or k of different widths placed in grooves in the sides. A sliding board e is adjustably secured to the front d of the reservoir to regulate the flow of rnash into the trough. Removable perches n, n are mounted in side pieces m secured to the hopper, and, for very young chickens, the boards k, j are laid on flanges o secured to the side pieces m. For larger birds, the hopper is mounted on legs p having a series of holes by means of which they are connected by bolts q to the pieces m. so that the hopper can be raised to any required height above the ground.