baber/WOPTO huggingface dataset:
Patent GB-1069801-A (GB)
Title: Improvements in diamond growth
IPC: B01J3/06
Filed: 1964-04-01
Abstract: Discrete single diamonds are grown from a carbonaceous material-metal catalyst combination which is surrounded by a metal shield, at a pressure of 40-57 kilobars and a temperature of 1150-1300 DEG  C., such that the metal catalyst melts and the metal shield does not. The shield may be of Ta, W, Ti, Zr, Ni, or Ni alloys with Fe, Cr, or Fe-Cr, and may be a tube, sphere, cube, or rectangular parallelepiped. The catalyst may be Cr, Mn, Ta, or a Group VIII metal or their alloys.  In the examples, a shield tube lined with graphite is used, containing a mixture of graphite and catalyst, or containing a diamond seed crystal wrapped in catalyst foil surrounded by graphite.  The tube is placed in a reaction vessel comprising a hollow cylindrical tube of pyrophyllite, talc, catlinite, or NaCl, containing a graphite heater tube (connected to electric supply via metallic end discs), and a lining of alumina or magnesia with end plugs of the same material.  The assembly parts may first be subjected to a vacuum bake (10-4-10-6 mm. Hg) at 1000 DEG  C. for metal parts, 2000-3000 DEG  C. for graphite, 500-1000 DEG  C. for stone parts, or 450 DEG  C. for NaCl; or as a unit at 1000 DEG  C. The vessel and its contents may then be subjected to the required pressure, and maintained for 20-30 mins. at just below the diamond forming region, e.g. 1000-1150 DEG  C.; optionally cooled, e.g. to room temperature, by cutting off the current; then heated to the diamond growing temperature.
Patent GB-547380-A (GB)
Title: A device for removing and extinguishing incendiary bombs
IPC: A62C3/06
Filed: 1941-10-17
Abstract: 547,380. Fire-extinguishing. WIGGLESWORTH, H. Oct. 17, 1941. No. 13391. Convention date, Jan. 13. [Class 47 (ii)] A device for removing and extinguishing incendiary bombs comprises a box or cowl 1 open at the bottom which is formed with guides for a shovel 6, 'the handle 7 of which is connected to a sleeve 8 slidable on the handle 2 of the cowl. At its upper end, the cowl is fitted with a funnel 10 closed at its top and having its lower end normally closed by a slide 12 operable by a handle 14. The funnel is filled through the bottom of the cowl, the front end of which is shaped to form a rake 17.
Patent GB-668514-A (GB)
Title: Improvements relating to anodes used in connection with electro-plating mechanism
IPC: C25D17/10
Filed: 1950-05-30
Abstract: 668,514. Anodes for use in electroplating. BRIGHT SIDE PLATING CO., Ltd., and NEALE, K. F. May 30, 1950, No. 13421/50 Class 41. An anode for use in electroplating comprises a bag or cover b filled with small pieces of metal or shot c and located in a plastic or insulating casing a which is perforated. The bag and casing normally protrude above the level cl of electrolyte. A short secondary anode e carrying an electric lead e<SP>1</SP> is thrust into the upper extremity of the small pieces of the main anode c. The perforations in the casing a are preferably more numerous or more pronounced at the upper and lower ends of the casing.
Patent GB-755046-A (GB)
Title: Improvements in silicon carbide articles and the method of manufacturing same
IPC: C04B35/573
Filed: 1954-05-10
Abstract: Porous silicon carbide bodies having a continuous reticulate network of cubic crystalline silicon carbide containing interstitial silicon and having glazed pore surfaces are made by forming a shaped carbon skeletal body, heating the body in the presence of silicon to above 1800 DEG C. and forcing a gas under pressure through the siliconized body to extract part of the interstitial silicon.  When an oxidizing gas is forced through the body before it cools the pore surfaces are oxidized to a glaze. The interstitial silicon and the external surface of the body are also glazed.  Specification 583,039 is referred to.
Patent GB-135548-A (GB)
IPC: B64C11/00
Abstract: 135,548. Oddy, W. D. Oct. 23, 1918. Screw propellers. - Relates to an aircraft propeller of the kind in which the blades are separately removable and exchangeable, as described in Specification 131,329 and 135,104, and consists in apparatus for testing the weight of the blades separately in order that the centrifugal forces of opposite blades, when the propeller is revolving, may be equalized. A blade is clamped in a pivoted holder D formed similarly to the sleeve described in Specification 135,104 for securing the blade to the propeller shaft, the holder having an extension F carrying a balancing weight E. The weight may be mounted eccentrically for use with a blade in which the centre of gravity deviates from the centre line. The pivot bar passes loosely through the central hole G in the holders and rolls on a pair of levelled hardened rails.
Patent GB-428890-A (GB)
Title: Improvements in and relating to hoisting devices for tractors
IPC: A01B33/06
Filed: 1934-05-04
Abstract: 428,890. Machines for working land. FOWLER & CO. (LEEDS), Ltd., J., Steam Plough & Locomotive Works, and STOREY, N. C., 13, Leathley Road, Hunslet, both in Leeds. May 4, 1934, No. 13562. [Class 6 (i)] [See also Groups XXXI and XXX] A hoisting device is mounted in front of a tractor and is driven from the front end of the engine shaft. The hoist is a unit mounted in a separate frame or gear-box, is driven through reversing gear, and may raise and lower a soil-working assembly which is located at the rear of the tractor and is driven from the rear end of the engine. In the construction shown an implement is pivoted at 50 on the rear of the tractor and is raised and lowered by chains 47 passing over chain wheels 46 fixed on a hoisting shaft 41 mounted on a casing 12 fixed to side plates 13 in front of the engine of the tractor. The shaft 41 is driven from the front end of the engine shaft 1 by means of a shaft 4 coupled to the engine shaft, spur gears 9, 17 driving a shaft 14, reversing gearing 26, 29 between shaft 14 and another shaft 27, chain gearing 36, and worm gearing 34, 42. The reversing gear comprises a spur gear train 25 and a chain gear train 29, the trains being controlled by a double sliding friction clutch 23 controlled by a hand lever 66. The worm wheel 42 carries a stop 74, and when the implement is fully raised or lowered this stop acts on a lever 73 and disengages the clutch of the reversing gear. Instead of the chain gear 46, 47 for raising the implements, the shaft 41 may drive cranks or hydraulic apparatus.
Patent GB-1206371-A (GB)
Title: The etching of silicon semiconductor wafers and semiconductor devices incorporating such wafers
Inventor: BRADSHAW ROBERT IAN
IPC: H01L21/306
Filed: 1968-03-21
Abstract: 1,206,371. Etching. WESTINGHOUSE BRAKE ENGLISH ELECTRIC SEMICONDUCTORS Ltd. 13 March, 1969 [21 March, 1968], No. 13619/68. Heading B6J. A silicon semi-conductor wafer is etched in a mixture of caustic alkali and an hydroxy acid. The alkali may be potassium hydroxide and the hydroxy acid may be gluconic, citric or tartaric acid. According to an example a wafer of silicon monocrystalline semi-conductor material is first etched in a mixture of hydrofluoric and nitric acids, the opposed planar surfaces of the wafer are coated with gold or lead solder and the coated crystal etched in a mixture of gluconic acid and potassium hydroxide. The wafer may be washed in distilled water after etching in the alkali/hydroxy acid mixture.
Patent GB-1514704-A (GB)
Title: Electric switch actuating device
IPC: H01H13/14
Filed: 1977-03-31
Abstract: The device is intended to provide positively-locking adaptation of the movement of a switch actuation plunger to the smaller movement of a switch pin. For this purpose, the actuation plunger (5) has an inclined surface (16) where faces the switch pin (3) and acts via a roller body (17) on an opposing inclined surface (18) of a transmission component (11) provided between the actuation plunger (5) and the switch pin (3). A switch head (4) guiding the actuation plunger (5) has a lateral recess on its inside opening towards the roller body (17) which, when the actuation plunger (5) is depressed, enables of lateral displacement of the roller body (17) along an inclined surface (20) rigid with the housing. <IMAGE>
Patent GB-328124-A (GB)
Title: Improvements relating to cloth and like expanding or stretching apparatus
IPC: D06C3/06
Filed: 1929-05-02
Abstract: 328,124. Taylor (Brass Founders), Ltd., G., and Tate, J. R. May 2, 1929. Feeding webs.-In a cloth-expanding device of the kind comprising a roller formed of longitudinal bars a which receive an endwise movement by being connected to rings b, Figs. 1 and 3, which rotate in guides c set at an adjustable angle to the exis of the roller, rows of balls or rollers f are arranged between the guides c and rings b to reduce friction.
Patent GB-167607-A (GB)
Title: Improvements in potato-planting machines
IPC: A01C9/06
Filed: 1920-05-18
Abstract: 167,607. Langsdorf, W. May 18, 1920. Potato planters.-In potato planting g machines comprising grippers mounted on a rotary disc or wheel, hand-fed appliances are provided for planting any additional potatoes needed to make up for those missed by the grippers. Two or more planting discs or wheels may be arranged to deliver potatoes into the same furrow. The additional potatoes are planted by feeding- mechanism comprising a conveyer or elevator provided with cups or receptacles into which potatoes are fed by hand, the feeding- mechanism being actuated by trip gear when the gripper-wheel fails to function. Fig. 2 shows a feeder consisting of a rotary member a provided with radial pockets b and adapted to deliver potatoes into a shoot d leading to the furrow. When a gripper e does not contain a potato, a pin f engages a trip g and actuates a ratchet h which through worm gearing k turns the feeder a through an angular distance equal to the pitch of the pockets b.
Patent GB-255990-A (GB)
Title: Improvements in holders for desk pads and the like, pads of blotting-paper or writingpaper and the like
IPC: B43L3/00
Filed: 1925-05-26
Abstract: 255,990. Ellis, C. H., Cave, C. W., and Taylor, H. May 26, 1925. Blotting-appliances. - A holder for pads of blotting-paper comprises a flexible and tensible base of indiarubber or indiarubber composition provided with pockets of triangular or other shape into which some or all of the corners of the pad are tucked. The pockets may be constituted by single inclined slots b which slice into the thickness of the material of the base a, or separate pieces of indiarubber or the like may be attached bv solution or other means to form the pockets. The underside of the base may be roughened or serrated, or a vulcanized fabric layer which may be roughened or serrated may be attached.
Patent GB-108394-A (GB)
Title: Improvements relating to Rotary Pumps.
Inventor: BOOT GEORGE HENRY
IPC: F04C2/08
Filed: 1916-09-28
Abstract: 108,394. Boot, G. H. Sept. 28, 1916. Movable - abutment type; adjusting parts for wear. - A rotary pump suitable for supplying lubricating liquid to cutting tools and comprising two intermeshing toothed impellers d is fitted with two adjustable blocks j adapted to slide within the pump chamber so as to take up wear, the adjustment being effected by screws l or springs.
Patent GB-661497-A (GB)
Title: Spectrographic apparatus
IPC: G01J3/36
Filed: 1949-05-24
Abstract: 661,497. Photo-electric spectroscopes. COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES, ALAIS, FROGES, ET CAMARGUE. May 24, 1949 [May 24, 1948], No. 13833/49. Class 40 (iii). [Also in Group XX] A spectrum produced by a prism can be photographically recorded or examined by photo-electric cells. As shown in Fig. 2, the spectrum is projected on to an area Sp and a photographic slide Cp can be swung away and replaced by a box Cc containing two cells C2, C1, one of which is adjusted to view a standard line and the other of which can be traversed to receive any desired line ; the outputs of the two cells are compared to .determine the ratio of the intensity of the two lines. As shown in Fig. 3, a mirror M in its lower position allows the spectrum to fall on the photographic slide Cp, and when rotated into its upper position deflects the spectrum via mirror 10 to the photo-electric apparatus Cc; spring-controlled shutters 8, 7 cut off light from the mirror 10 and open aperture 11 when the mirror M is in its lower position, and when the mirror M is in its upper position, aperture 11 is closed and aperture 16 is open. The cells C1, C2, Fig. 4, may have their sensitivity adjusted by choice of resistances R1, R2; the cells feed amplifiers Al, A2 whose outputs are rectified at D1, D2 to charge condensers F1, F2, whose potentials are compared by a potentiometer circuit.
Patent GB-799007-A (GB)
Title: Improvements in or relating to steering gear
Inventor: BRADFIELD ALAN HERBERT EDWARD
IPC: B62D3/02
Filed: 1954-05-12
Abstract: 799,007. Cam steering mechanism. CAM GEARS, Ltd., and KENT, Ltd., G. April 1, 1955 [May 12, 1954], No. 13953/54. Class 80 (3). In a steering gear a follower peg 4 engaging a helical cam 3 is adjustably mounted in a rocker arm 1 to allow compensation for wear in the gear. As shown, the peg 4 is rotatable in a plain or roller bearing 5 and is held against the cam by an adjustable screwed plug 7 held by a lock-nut. A plug 10 in the gear housing allows access to the plug 7. In a modification, Fig. 2 (not shown), a non-rotatable follower peg is fixed in a rocker arm by co-operating screw threads allowing adjustment of its axial position in the arm. Alternatively the rocker arm has an unthreaded opening in which the peg is clamped, its axial position being determined by the insertion of a shim. In addition, the peg may be rotatably adjusted to present an unworn part to the cam. It is stated that the axis of the peg may be at right angles to that of the rock-shaft and that the invention may be applied to steering gear wherein the rocker-arm carries more than one follower peg.
Patent GB-662991-A (GB)
Title: Improvements in or relating to hydraulic couplings
IPC: F16D33/20
Filed: 1949-05-25
Abstract: 662,991. Hydraulic couplings. STEVENS, A. H. (Borg-Warner Corporation). May 25, 1949 No. 13969/49. Class 69 (ii) A hydraulic coupling member comprises a shell, a vane carried by the shell and means co-operating with marginal portions of the vane for retaining the vane seated in the shell, the vane portions and a retaining means being so constructed and arranged that the vane is bodily flexed in the direction of its thickness. Fig. 1 shows an hydraulic coupling comprising a driving member 20 carrying impeller vanes 34 and a driven member 45 carrying turbine vanes 34a. Each vane 34 carries tabs 35, 36, 44, which fit respectively into seats or recesses 37, 38 in the member 20 and a seat or recess 43 in an annular vane retaining member 39. A free portion 42 of the retainer is of a yielding character and the tabs 44 are sprung into place in the seats 43 after the other tabs or projections 35, 36 have been inserted into their respective seats. Each vane 34a carries tabs 52, 53, 44a which seat respectively in recesses 50, 51 in the member 45 and a recess 43a in an annular vane retaining member 39a. The member 39 is preferably welded to the member 20. Fig. 2 is a part section of the coupling on the line 2-2 showing a stage in the process of fixing the vanes 34 in position. The retainer 39a is fixed together with the member 45 to a flange 47 on a driven shaft 11. In Fig. 2 the recesses 50, 51 and 43a are in radial alignment but the fixing holes 54 and 55 in the retainer and the driven member overlap one another. Thus after the blades are fitted into the recesses the retainer is rotated clockwise with respect to the driven member and fixed in position by rivets 46 and the blades are distorted and held in a flexed condition which thus retains them against vibration. In a modification the recesses 50 and 43a are in radial alignment when the retainer is fixed in position but the recess 51 is displaced to the left. Thus the vane is first fitted in the recesses 50, 51 the retainer being rotated anticlockwise to fit it and then being rotated back and fixed in position in which the vanes are held flexed. Fig 7 shows a modification in which the tab 52 is twisted with respect to the vane 34a. When the tab 52 is inserted in the recess 50 the vane has to be flexed in order to fit the tabs 53, 44a into their appropriate recesses. In another modification the vanes are initially bowed and the recesses are in radial alignment thus necessitating distortion of the vane during fitting. In a further modification the tabs are each bowed and are distorted when they are inserted in the recesses. A fluid seal 26, Fig. 1, is provided between a collar 25 of the driving member 30 and the driven shaft 11.
Patent GB-460113-A (GB)
Title: Improvements in and relating to solders for thin aluminium plates
IPC: B23K35/26
Filed: 1936-05-18
Abstract: A solder for thin aluminium plates consists of tin, cadmium, silver, and aluminium, preferably 38-70 per cent of tin, 5-30 per cent of cadmium, 2-12 per cent of silver, and 5-20 per cent of aluminium.
Patent GB-1237173-A (GB)
Title: Electric cables insulated with rubber or synthetic material and a process for their manufacture
IPC: B29C48/06
Filed: 1969-03-18
Abstract: 1,237,173. Cable insulation. PIRELLI S.p.A. 18 March 1969 [26 March, 1968; 23 Dec., 1968], No. 14081/69. Heading H1A. A process for forming an insulating covering around a cable core or a plurality of cores comprises the steps of successively extruding at least three layers of insulating material around said cores, each layer being not more than 2 millimeters thick. The number of layers may be between five and one hundred, and each layer may not be less than 0À2 millimeters thick. The layers may all be of same thickness or the innermost layers may be thinner than the outermost. The layers may be extruded at positions spaced apart by not less than 30 millimeters. The layers may be extruded through an extrusion head having a plurality of annular extrusion nozzles disposed in series or sequentially through a plurality of extrusion heads disposed in series. The layers may all be of the same material or alternate layers may be composed of one of two materials. The two materials may be low and high density polyethylene; low meltindex and high melt-index polyethylene; polyethylene and propylene; cross-linked ethylene propylene and cross-linked polyethylene; EPD terpolymer and ethylene-propylene; EPD terpolymer and cross-linked polyethylene. The insulation could be applied to a single core or each core or bundle of cores of a multi-core cable and then covered by an outer layer of copper wires and a polyethylene sheath.
Patent GB-579060-A (GB)
Title: Method of separating ingots in a continuous casting process
IPC: B22D11/126
Filed: 1943-08-30
Abstract: 579,060. Casting processes. HONE, A., and ALUMINIUM LABORATORIES, - Ltd. Aug. 30, 1943, No. 14144. Addition to 551,842. [Class 83 (i)] In separating continuously cast metal into ingots, as described in the parent Specification, the separating members take the form of pieces of foil, paper, metal-plated paper, or other thin membrane or of a thin layer of lime, alumina, carbon black, sugar, varnish or other material inert to the metal being cast. Lime may be sprayed on as a 50 per cent solution. Paper, sugar, varnish or the like burns off leaving a film of carbon. Foil pieces may be coated oxide or other suitable material to prevent adhesion.
Patent GB-642568-A (GB)
Title: Improvements in or relating to cow milkers
IPC: A01J7/00
Filed: 1948-05-25
Abstract: 642,568. Cow milkers. ECREMENSES MELOTTE SOC. ANON., and BABSON, H. B. May 25, 1948, No. 14152. [Class 84] Apparatus for supporting a suspended cow milker comprises supporting means adapted to be mounted at a point above the cow's udder and to be moved longitudinally of the cow, suspension elements depending from the said supporting means on each side of the cow and a carrying member extending beneath the cow, the said member being carried by the suspension elements and being adapted to carry the milker. In Fig. 1 the supporting means is a beam 15 of polygonal cross-section resting on the upper members 11a and 11b of a milking stall. The beam is moved, by rotation, by spokes 21a, b c and d, and is maintained in any desired position by ropes or other flexible means 22 and 23 which are looped round the beam and attached at suitable points at each end of the stall. Suspension elements 18 and 19 attached respectively to each end of the beam carry a number of spaced supports such as steel balls any of which may be engaged by the hooked ends of the carrying member 20. The above mentioned supporting means may be replaced by two nuts 45a, 45b (Fig. 4) each in screwed engagement with a threaded shaft mounted under the upper members 41a, 41b of the stall. The nuts are shaped to engage members 41a, 41b respectively so as to prevent their rotation. Movement of the nuts is controlled from a handle 44 through shaft 43 and bevel gears. Specification 642,569 is referred to.
Patent GB-980052-A (GB)
Title: Electrically conductive fabric and yarn therefor
IPC: H01B1/24
Filed: 1961-04-19
Abstract: Electrically conductive woven fabric, for use as a heating element or as an electric screen comprises warp and/or weft yarns e.g. twisted multifilaments, which have been coated and/or impregnated e.g. before twisting, with a conductive composition comprising epoxy, acrylate, or silicon resin in which a filler of conductive powder e.g. carbon, silver, copper is dispersed.  The yarn may be of natural, synthetic or mineral fibre e.g. silk, cotton, cellulose acetate, polyamide, polyethylene terephthalate or glass.
Patent GB-234847-A (GB)
Title: Process for improving vegetable textile material
IPC: D06M13/256
Filed: 1925-05-29
Abstract: A silky gloss, brilliance, and elastic feel are given to woven and spun material of vegetable origin, linen, flax, hemp, ramie, jute and cotton, by treating them in the presence of alkalies with an inorganic ester of a monohydric alcohol, and stretching.  These reagents may be used either simultaneously or in either sequence, and the fibre may be treated at any stage from the crude state to that after removing fatty constituents, or after bleaching, mercerizing, hydrolyzing, or gelatinizing (with a strong mineral acid or the like).  As alkalies, caustic alkalies are preferred, but alkali sulphides may be used.  As esters, a dialkyl sulphate, an alkyl halide, or an aralkyl halide are suitable and as examples dimethyl sulphate, di-ethyl sulphate, methyl iodide, ethyl bromide and iodide, and benzyl chloride are mentioned.  Alcohol may be added to the alkali to assist in the penetration of the fibre and the esters may be used alone or in solution in suitable solvents such as benzene, alcohol, or a mixture of these, and thickening agents such as starch, dextrin, British gum, albumen, or the like may be added.  The material after treatment may be washed and dried or it may be treated with an acid, a tannin solution, or formaldehyde solution, or other precipitating agent known in the viscose or like industries and then washed and dried. Patterns may be produced by printing the material first with a reserve paste containing albumens, gums, acids, alums, ammonium sulphate, or other suitable materials, or the ester or the alkali may be printed on the material, thickening agents being used. Colours may be added to the reserve paste and to the ester.  As thickening agents for the alkali are mentioned starch, denatured albumen, a cellulose hydrate soluble in alkali, an oxyalkyl cellulose derivative which is soluble in alkali or in water, or a cellulose hydroxy-paraffin-monocarboxylic acid.