baber/WOPTO huggingface dataset:
Patent GB-718271-A (GB)
Title: Improvements in and relating to electric circuit elements incorporating semi-conductors
IPC: H01L21/48
Filed: 1951-03-12
Abstract: 718,271. Semi-conductor amplifiers. BRITISH THOMSON-HOUSTON CO., Ltd. March 12, 1951, [March 31, 1950]. No. 5909/51. Class 40 (4). [Also in Group XXXVI] A semi-conductor device comprises a first electrode in contact with the semi-conductor over a relatively large area, and at least one other electrode having a small area of contact, at least one of the surfaces of the small area contact having a spherical configuration. Fig. 1 shows a semi-conductor rectifier in which a spherical piece of semi-conductor 1 is supported by a metal plug 2 which forms a large area, low resistance electrode. A flat conductor 4 fixed to an adjustable metal plug 5 engages the surface of the spherical semi-conductor 4 to provide the small area contact. A collar 6 and insulating housing 3 enables the assembly to be hermetically sealed. Modifications are described in which the flat conductor 4 is replaced by a wedge-shaped conductor the linear edge of which engages the sphere 4, or in which the electrode is spherically shaped and the semi-conductor is flat or wedge shaped. Alternatively, both the semi-conductor and the electrode may be spherically shaped. Fig. 5 shows a transistor arrangement comprising a thin slab of semi-conductor 22 supported by an annular conducting collar 23. Sphericallyshaped electrodes 24, 25 engage opposite faces of the semi-conductor and serve as the emitter and collector electrodes of the transistor. In an alternative arrangement, the semi-conductor consists of a thin wedge supported at one end only. In a further alternative (Fig. 8) the semi-conductor 33 is spherically shaped, and the emitter and collector electrodes are provided by members having thin, resilient flanges 39, 40 which engage the surface of the sphere, and adjustment of the position of the semi-conductor sphere enables the distance between the emitter and collector electrodes to be varied. Reference is made to Specification 718,265, [Group XXXVI].
Patent GB-176648-A (GB)
Title: An improved hack saw
IPC: B23D49/00
Filed: 1921-02-22
Abstract: 176,648. Blacker, W. Feb. 22, 1921. Reciprocating-saw machines. - A hack-saw blade g is attached to the lower of two round bars d, d<1>, sliding in bored lugs e<1> on a plate e which is pivoted on the driving-shaft h. Brackets f<1> connect the two bars, one bracket being adjustable. The lever i<2> which clutches the crank h' to the driving-shaft is moved out of action on the completion of the cut by a finger j' on a lever j<1> engaging a lug i<4> on the lever i<2>. The lever j<1> also carries an adjustable stop j<2> which is engaged by the frame bar on its descent.
Patent GB-667486-A (GB)
Title: Improvements in light weight phonograph record
IPC: G11B3/70
Filed: 1950-03-09
Abstract: 667,486. Gramophone records. RADIO CORPORATION OF AMERICA. March 9, 1950. [March 11, 1949] No. 5982/50. Drawings to Specification. Class 40 (ii). . A gramophone record disc has a thickened label portion with a relatively thin web portion adjacent to a centre hole having a diameter of the order of 1¢ inches. A record changer for use with such records has a similarly large centre post which houses retractable shelves and separator blades of a more robust nature than in a post of normal size.
Patent GB-452657-A (GB)
Title: Improvements in and relating to magnetos
IPC: F02P1/00
Filed: 1935-02-26
Abstract: 452,657. Ignition timing. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and GRIFFITHS, L., 78, Biggin Hall Crescent, Stoke, and FRANKLIN, S. H., 1A, Grasmere Avenue, both in Coventry. Feb. 26, 1935, No. 6161. [Class 7 (iv)] In magnetos in which the spindle carrying the interrupter-cam and distributer-rotor is substantially at right-angles to the magneto shaft, timing is adjusted by axially sliding the gear 2 splined to the magneto-shaft. An external lever attached to the cap 12 and the V-ended part 13 fixed centrally thereto acts on the V-ended part 14 ; this is restrained against angular movement and moves the thrust-bearing 3 and gear 2 against the action of an enclosed spring 4. Lubricating of the bearing of the shaft 6 is effected by an axial wick 10 and transverse passages A and also through passages B by splashing from the gear 2.
Patent GB-372855-A (GB)
Title: Process of improving textile materials
Filed: 1931-02-27
Abstract: Esters derived from aromatic sulphodicarboxylic acids and alcohols containing more than two carbon atoms in the molecule are employed for emulsifying fat solvents, the emulsions being used in the textile industry.  In an example, oils such as benzine and benzene are emulsified with a solution of the product from amyl alcohol described in example 1 of Specification 371,144, and the emulsions are used for cleaning textiles.ALSO:Esters derived from aromatic sulphodicarboxylic acids and alcohols containing more than two carbon atoms are used as wetting agents in processes for improving textile materials, particularly in carbonizing, mercerizing, dyeing and washing processes.  They are also emulsifying agents for fat solvents, and are useful additions in the cleaning of textiles with the aid of such solvents.  In examples, (1) rags are carbonized with a sulphuric acid solution containing the product from sulpho-4-chlorphthalic anhydride and amyl alcohol described in example 6 of Specification p  371,144, (2) the product from methylcyclohexanol described in example 4 of Specification 371,144 is used for wetting cotton and wool, (3) one of the products described in example 4 of Specification 371,144 is added to a mercerizing bath, (4) closely woven fabrics or strongly twisted yarns are dyed evenly by padding with a solution of Cibanone blue GCD containing the product from amyl alcohol described in example 1 of Specification 371,144, then treating in a bath containing hydrosulphite and caustic soda, and subsequently oxidizing, (5) raw wool is washed with a solution of the product described in example 5 of Specification 371,144, and (6) oils, such as benzine and benzene, are emulsified with a solution of the product from amyl alcohol described in example 1 of Specification 371,144, and the emulsions obtained are used for cleaning textiles which have been stained with oils, fats, or pitch. Specifications 306,116, [Class 15 (ii), Dyeing, Processes &c. for], 350,595, 351,456, 363,770 and 371,088 also are referred to.
Patent GB-549447-A (GB)
Title: Improvements in or relating to the treatment of fat-soluble vitamin-containing oils
IPC: A61K31/59
Filed: 1941-05-14
Abstract: 549,447. Vitamins. NATIONAL OIL PRODUCTS CO. May 14, 1941, No. 6211. Convention date, July 2, 1940. [Class 2 (iii)] Highly potent vitamin extracts are obtained from fat-soluble vitamin-containing oils by treatment at a temperature above mean atmospheric temperature with an aliphatic solvent which is miscible with fatty oils at temperatures substantially above mean atmospheric temperature but which is only partly miscible therewith at lower temperatures, and cooling the mixture to form two layers which are separated. The solvent may be an aliphatic or alicyclic monohydroxy alcohol containing from three to six carbon atoms, an ester formed by reaction of an aliphatic or alicyclic alcohol with an aliphatic monocarboxylic acid, the ester containing not more than eight carbon atoms, an aliphatic or alicyclic aldehyde of not more than six carbon atoms, or an aliphatic ketone of not more than six carbon atoms, e.g. isopropanol or diacetone alcohol. A small amount of water or a liquid aliphatic compound more immiscible with fatty oils may be added to the solvent. The natural anti-oxidants present in the oil are extracted with the vitamins. The vitamin extract may be further extracted with methanol or ethanol as described in Specification 547,486. Oils. treated include cod liver, shark liver, tuna liver, halibut liver, ling cod liver, sole liver, spear fish liver, sword fish liver, palm, and wheat germ oil.
Patent GB-1141705-A (GB)
Title: Hydraulic axial piston pump, motor or transmission lubrication structure
IPC: F01B3/00
Filed: 1966-02-14
Abstract: 1,141,705. Hydrostatic transmissions. INTERNATIONAL HARVESTER CO. 14 Feb., 1966 [30 April, 1965], No. 6335/66. Heading F2C. [Also in Division F1] In a hydrostatic transmission comprising a variable displacement rotating cylinder block axial piston pump 96 and an axial piston motor 98, the components subject to friction are lubricated and cooled by a supply of liquid under pressure fed via stationary central section 100, providing communication between the pump and motor cylinders, to axial shaft passageways 144 and 146. Liquid supplied to the axial passageways is fed via radial shaft passageways 148, 150, 154, 156, 158 to the shaft bearings 168, 170, radially outwardly through passages in the valve plates 102, 104, 109, 111, and along passageways formed in the spline connections 160, 162 between the shafts and the cylinder blocks to be directed over the slippers, slipper retaining means 140, 142, thrust plates 132, 134 and trunnion bearings (not shown) of the swash plate assemblies 124, 126. The liquid is supplied by a pump (184), Fig. 5 (not shown), from a reservoir (186) to which the liquid collecting in the transmission housing is returned.
Patent GB-346916-A (GB)
Title: Improved ventilating cowl for chimney and other outlets
IPC: F23L17/02
Filed: 1930-02-26
Abstract: 346,916. Chimney tops. CLEGG, W. H., 12, Westbourne Road, West Kirby, Cheshire. Feb. 26, 1930, No. 6340. [Class 25.] A cowl for chimneys and other outlets comprises a square frame a fastened to a tube b forming the chimney or like outlet, two opposite sides of the frame being extended to form tapering side-plates c of a height approximately twice the diameter of the tube b. The plates are bent outwards at the edges and are joined at the top by a circular plate e bolted to, or as shown, integral with the side-plates c. Extending between and fastened to the side-plates are two plates g inclined at about 25‹ to the horizontal and having downwardly bent side and end flanges h. These plates project outwards a distance approximately equal to the diameter of the tube b. Two other short inclined plates k project inwards and upwards between the plates c from the level of the top of the tube b.
Patent GB-196153-A (GB)
Title: Improvements in apparatus for use in connection with the filtration of water
Filed: 1922-03-04
Abstract: 196,153. Candy, F. P. March 4, 1922. Filters with loose filtering - materials.- Mechanical gravity filters are piovided with automatic apparatus for suddenly closing the outlet valve of the filter on the completion of draining previous to the cleansing of the bed and for gradually opening the valve on the rise of water above the bed when filtration is started. The wash-out valve may be automatically opened when the filter outlet valve is closed and closed when the filter inlet valve is opened. Water is admitted to a filter 12, Fig. 1, from a supply trough 15 through a hand-operated valve 21. When this valve is closed prior to cleansing of the filter the liquid level above the filter bed gradually falls, and at a certain minimum level a float 4 by means of a slotted rod 9A pulls over a weighted lever 9 which opens the washout valve 8 by means of a rod 10 and closes the outlet valve 2 of the filter by means of a' lever 3. When the valve 21 is opened to re-start filtration, a lever 11 connected to the end of the valve spindle pulls back the weighted lever 9 by means of a slotted bar 9<c> and the valve 8 is closed. As the float 4 rises a rod 6 connected to the float lever pushes over the lever 3 and gradually opens the valve 2. In the apparatus shown in Fig. 2 the wash-out valve 8 has an upward extension with a draining aperture 8A. As the liquid level above the filter falls the water drains from this extension and a weighted lever 9A can then lift the valve 8. Its motion is communicated by means of a slotted bar 9<c> to a second lever 9 which sharply closes the valve 2. When the inlet valve 21 is opened the first water passing therethrough falls into the extension and closes the valve 8. The valve 2 is gradually opened as the float 4 rises, the motion of the float being communicated to the valve by means of a lever 5A, cam 5B, lever 3 and rod 2<A>. The lever 5A controls a throttle valve 17 on the water inlet. The connection between the valve 2 and the rod 2<A> is such that the valve automatically regulates the rate of discharge past it.
Patent GB-760047-A (GB)
Title: Improvements in automatic weft breakage stop motions for shuttleless weaving looms
Inventor: JABOULY JOANNY
IPC: D03D51/34
Filed: 1954-03-04
Abstract: 760,047. Weft stop motions for looms. HINDE & SONS, Ltd., F. Dec. 30, 1954 [March 4, 1954], No. 6385/54. Class 142 (2). An electrical stop motion for the shuttleless loom of Specification 681,610 comprises a springy wire 4 held up by the weft 3, and another springy wire 10 suspending a plunger 12 over a pot of mercury 13 ; when the weft breaks, the wire 4 depresses the wire 10 to close the circuit.
Patent GB-361755-A (GB)
Title: New or improved means for pressing out the creases in a boot or shoe
IPC: A43D3/14
Filed: 1931-03-02
Abstract: 361,755. Boots &c. BRAUNSTEIN, B., 7, St. Mary's Road, Canonbury, London. March 2, 1931, No. 6497. [Class 17 (iii).] Trees and stretchers.-For smoothing out creases between the toe ar d instep portions of the upper, a flexible strap damps this portion of the upper against a stretcher within the shoe. A sole supporting baseplate 1 is slotted to guide a U-piece 11, which may be depressed away from the shoe by eccentrics 14 turned by a handle 15. The ends of the U-piece are connected by links to a pressing device comprising a series of blocks 4 threaded on springs 5, a strip of vulcanized fibre being secured to the blocks between them and the upper. The eccentrics bear on a thrust plate 17 formed with steps and adjustable for size of shoe, a spring plunger 19 retaining the plate in adjusted position. A stretcher 3 is placed inside the shoe. The heel portion of the stretcher is formed with a recess 27 engaged by a head 26 on a bar 24 slidable through a cross bar 24 connected by a yoke 22 with a disc 29 engaging a slot in the baseplate. A spring is threaded on the bar 24, and the disc 29 has a stop to determine the normal position of the yoke. In a modification, a double row of blocks 4 are arranged in staggered formation. According to the Provisional Specification, a sheet of material impregnated with oil, fat, or wax may be interposed between the upper and the strap ; the strap may be adjustable ; and a toe strap may be provided.
Patent GB-718136-A (GB)
Title: Means for controlling the supply of liquid fuel to internal combustion prime movers
Inventor: WARNE EUGENE HAROLD
IPC: F02C9/16
Filed: 1952-03-13
Abstract: 718,136. Gas turbine plant; pistons. LUCAS (INDUSTRIES). Ltd., J. March 12, 1953 [March 13, 1952], No. 6512/52. Classes 110(3) and 122(1) [Also in Group XXIX] In apparatus for controlling the supply of liquid fuel to a gas turbine, or jet-propulsion engine for an aircraft or aerial machine in which one or more of the movable parts are wholly or mainly surrounded by liquid fuel and are subject to a variable force associated with a particular working condition such as engine speed, fuel pressure, blower-air, or atmospheric-air pressure, the movable part or each of them is so constructed that its mass is substantially equal to that of a quantity of fuel of equal volume so that the effect of rapid changes of velocity of the machine on the movable part or parts is eliminated or minimized. The invention is particularly applicable to engines in aircraft. As shown a pump a supplies liquid fuel to the burners of a prime mover along a pipe b from which fuel is spilled back to the pump inlet along pipes d, e under the control of a throttle f. The throttle f is actuated by a spring- loaded servo-piston under the control of a leakoff valve n carried by a lever o. The lever is loaded by a spring q which opposes a load due to the fuel pressure acting on a piston s. The lever is also loaded by an evacuated capsule r responsive to variations in atmospheric pressure. As shown the throttle f, and the pistons and s are made hollow to an extent necessary to satisfy the condition described above. The lever o may similarly be made hollow.
Patent GB-415156-A (GB)
Title: Improvements relating to spectacle frames
IPC: G02C5/12
Filed: 1933-03-03
Abstract: 415,156. Spectacles. WINGATE, G. H., 15, Wigmore Street, Cavendish Square, and FLEMING, R. J., 146, Clerkenwell Road, both in London. March 3, 1933, No. 6548. [Class 97 (i).] In spectacles having plaquets to rest against the nose, the bridge 1 and plaquet supports 6 are formed as a unit from a single length of wire, and the supports 6 are in the form of loops or humps which are secured to the eyepieces 4 at top and bottom points 2, 5. The plaquets are so mounted as to be capable of rocking. The support 6 may be approximately in the form of two unequal sides of a plane triangle with the plaquet attached at a point on the longer lower side, or it may be approximately in the form of two equal sides of a triangle with the plaquet attached at the apex. The part 6a which is to receive the plaquet 8 is flattened and slotted to receive the shank 7 of the plaquet allowing sufficient play for rocking.
Patent GB-994305-A (GB)
Title: Improvements in and relating to high frequency generators
IPC: H04B1/036
Filed: 1962-02-20
Abstract: 994,305. Valve oscillating circuits, LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Feb. 20, 1962 [Feb. 20, 1961], No. 6578/62. Heading H3F. A high frequency generator comprises a triode valve R and a resonator K with distributed constants, strip conductors B traversing the resonator and having one end connected to its outer conductor via capacitors CK and the other end connected to the cathode of the valve, to control the grid to cathode voltage by the voltage developed in the resonator owing to the high frequency current flowing through it and through the anode to grid capacity of the valve. The outer conductor of a second cavity resonator T is connected via decoupling capacitors Ca to the outer conductor of the first resonator, and its inner conductor is connected to the anode of the valve. One end of the first resonator is connected to the grid of the valve and is terminated by a shunting capacitor Cr; the latter prevents the generation of unwanted higher frequencies and is of circular type. The resonator K is made a quarter wavelength long, its effective length being adjusted by means of a short-circuiting slider S, while the cathode of the valve is connected to supply transformer U via chokes D.
Patent GB-576376-A (GB)
Title: Improvements in or relating to milling cutters, reamers and like tools
IPC: B23D77/02
Filed: 1944-04-10
Abstract: 576,376. Milling-cutters, reamers &c. HOEY, K. COLCLOUGH-, and PALING, H. J. April 10, 1944; No. 6600. [Class 83 (iii)] A milling-cutter, reamer or like tool consists of a body 10 made of steel, .plastic material, wood, &c. and having slots 12 to receive cutters in the form of glass strips 14 which are ground to the required shape before being inserted. The cutters are cemented into the slots by rubber cement 13 which forms a cushion to protect them from shocks. The cutter is stated to be suitable for use on plastic materials such as synthetic resins and on wood or other materials requiring a low cutting pressure and may be used in machines for milling, boring and facing, turning, &c.
Patent GB-232189-A (GB)
Title: Improvements in or relating to electrolytic production of aluminium
IPC: B65B61/28
Filed: 1925-03-11
Abstract: 232,189. Aluminum Co. of America, (Assignees of Frary, F. C.). April 10, 1924, [Convention date]. Drawings to Specification. Aluminium, obtaining.-In producing aluminium by electrolytic reduction of alumina in a fused bath containing sodium and aluminium fluorides, alumina previously fused and solidified is supplied to the bath after being finely divided into particles of a size enabling them to remain in suspension until substantially the whole is dissolved. Material which has passed through a screen having 85 meshes to the linear inch is suitable. The degree of subdivision required' depends on the conditions promoting stirring of the bath. It is stated that when the alumina is added in this fashion, the presence of usual impurities, viz. iron and titanium oxides and silica, is not harmful. Specifications 14572/00, 2260/02, [both in Class 1, Acids, alkalies, &c.], 208,715, and 208,716 are referred to.
Patent GB-919647-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: LEFEBVRE ARTHUR HENRY
IPC: F02C3/30
Filed: 1960-02-25
Abstract: 919,647. Spray nozzles. ROLLS-ROYCE Ltd. Feb. 16, 1961 [Feb. 25, 1960], No. 6738/60. Class 69 (3). [Also in Groups XII and XXVI] A device for spraying water into the combustion equipment of a gas turbine engine for smoke abatement purposes and for thrust boosting purposes (see Groups XII and XXVI) is shown in Fig. 4. When used for smoke abatement only, water is supplied through the passage 134 and inclined passages 135 to the manifold 136, then through passages 137 to the passage 133 and finally through the orifice 138 in a swirling and atomized condition. If thrust boosting is also required, water is supplied through the outer passage 139 to the manifold 140, then through passages 141, 142, 143 to an annular swirl chamber 144, the water issuing through the orifice 145 in an atomized condition, but the atomization is less fine than that produced by the orifice 138 and the droplets will pass through the primary combustion zone without being evaporated, evaporation occurring further downstream to cool the tertiary zone.
Patent GB-958428-A (GB)
Title: Mouding compositions based on elastic-thermoplastic copolymer mixtures
IPC: C08L9/02
Filed: 1962-02-21
Abstract: A moulding composition contains an elastomeric copolymer of a conjugated diene and acrylonitrile or a homologue thereof and a thermoplastic copolymer of acrylonitrile and styrene or their homologues together with 0.1 to 20% based on the total mixture of an oligophenyl. The oligophenyl may be added to a mixture of the dry powder of the elastomeric and thermoplastic copolymers in a mixing apparatus and then gelled at between 100 and 250 DEG C. Diphenyl benzenes e.g. terphenyl which is a mixture of the 1-2, 1-3 and 1-4-diphenyl benzenes are preferred although quaternary phenyls and halogenated especially chlorinated oligophenyl may also be used. The elastomeric copolymer may also include as comonomer an alpha-beta unsaturated aliphatic monocarboxylic acid, e.g. up to 10% acrylic or methacrylic acid.  The composition may be blended with a polymer of a halogenated vinyl monomer e.g. polyvinyl chloride. Specification 837,704 is referred to.