baber/WOPTO huggingface dataset:
Patent GB-1369272-A (GB)
Title: Butterfly valves
IPC: F16K1/226
Filed: 1972-02-25
Abstract: 1369272 Valves GENERAL SIGNAL CORP 25 Feb 1972 [17 March 1971] 8840/72 Heading F2V  A butterfly valve seating ring 17 is bonded to body 11 and is compressed between fixed radial wall 19 and a clamping ring 24 movable axially by screws 26 in spaced blocks 27 engaging in pockets 31 or an annular groove. For valves larger than 42 inches dia., the clamping ring abuts the seating ring at a radial face 33 around wedging face 22a, whereas for valves less than 6 inches diameter the clamping ring is moved axially by radial screws extending therethrough into contact with one face of a V-section body groove. The body 11 and disc 13 are typically of cast iron whereas the remaining interior fittings, including seat-engaging ring 15 on the disc, are of stainless steel.
Patent GB-398899-A (GB)
Title: Improvements in and relating to blades suitable for turbines, compressors or the like
IPC: F01D5/14
Filed: 1932-03-24
Abstract: 398,899. Making turbine blades. PARSONS & CO., Ltd., C. A., BEDFORD, F. G. H., GIBB, C. D., Heaton Works, Newcastle-on-Tyne. March 24, 1932, Nos. 8872 and 11760. [Classes 83 (ii) and 83 (iv).] Turbine blading with or without an integral root is made by deforming a hollow seamless blank. A blank A held in a die B is elongated and provided with a hole 6 on descent of a punch C. The blanks may be tapered internally or externally to provide blades of non-uniform thickness. The hole is filled with copper or other material and the blank rolled to shape between gapped roller dies. In a modification a long seamless tube is brought to a rectangular form and elongated to the required cross-section and subsequently cut into blade lengths. The blank A may be provided with holes by drilling &c. A non- uniform disposition of metal in the walls of the blade may be obtained by eccentric location of the hole in the blank. The root may be lightened by drilling &c. holes 3b, Fig. 20. To stiffen the blade a bridge piece 2n, Fig. 21, may be formed by drilling a plurality of holes in the blank. Specifications 168,636, 289,967, 306,182, [all in Class 83 (iv), Metals, Working], and 398,898 are referred to.
Patent GB-870730-A (GB)
Title: Improvements in thermal processing of green carbon articles
IPC: C04B35/52
Filed: 1958-03-20
Abstract: Baked carbon articles are formed by passing preformed green articles containing crushed carbon and a carbonisable binder in succession through a tunnel kiln comprising successive preheating, baking, soaking, and cooling zones.  The preheating zone may have a rate of temperature rise of 2-40 DEG C./hr. and a maximum temperature of 400-600 DEG C.  The baking zone may have a rate of temperature rise of 4-50 DEG C./hr. and a maximum temperature of 800-1300 DEG C.  The cooling zone may <PICT:0870730/III/1> have a rate of temperature drop of 2-50 DEG C./hr. and a minimum temperature of 200-400 DEG C.  The carbon may be in the form of anthracite coal, bituminous coal coke, pitch coke, and/or petroleum coke.  A range of particle size distribution is specified.  The carbonisable binder may be oil-gas, coke oven, lignite, petroleum, and/or coal-tar pitch.  It may have a m.p. of 75-150 DEG C., preferably 105-120 DEG C.  It may be present in an amount of 5-25%, preferably 12-20%.  Combustion supporting gas may be introduced into the baking and soaking zones to consume deposited carbon.  As shown a tunnel kiln is heated by a pair of muffle flues 12 having burners 14.  The preheating and baking zones may be separated from the flues by porous brick-work (not shown), and the pressure in the flues may be less than in the preheating zone and more than in the baking zone by 0.001-0.5 inches of water. Thus a portion of the material vaporized in the furnace may be condensed in the cooler parts thereof, a portion may pass into flues 12 from the preheating zone, and a portion may be burnt in the baking zone.  Coke and soot may be removed by reaction with steam from jets 30.  The temperature and gas flow pattern may be controlled by injecting gas containing not more than 2% of oxygen at a rate of up to 200 cu. ft./min. at various points in the kiln. The inert gas may originate outside the kiln or may be withdrawn from the kiln itself or the muffle flues thereof.  Further control of temperature may be effected by passing a mixture of hot products of combustion and air through a series of tubes (not shown) in the preheating zone, and cool air through a series of horizontal (as shown) or vertical pipes in the cooling zone.
Patent GB-863065-A (GB)
Title: Processes for removing material from metals by chemical attack
IPC: C23F1/02
Filed: 1957-03-19
Abstract: 863,065. Etching. NOEL, L. March 19, 1957 [March 22, 1956], No. 9055/57. Class 100(2) A process for removing material from selected parts of a metal surface by subjecting those parts to chemical etching comprises treating the parts of the surface to be protected from etching so as to make them granular and then covering them with a varnish having a base of a resin having an epoxy radical at each end of the chain, thereafter etching the unprotected parts of the surface. The resin may be "Epikore" (Registered Trade Mark) 1007 or 1009. The resin may be mixed with urea-formaldehyde or melamine resins. The solvent for the resin may be ethyl acetate, butyl acetate, acetone, methyl-ethyl ketone, methyl-isobutyl ketone, glycol ethers, or esters of glycol ethers. Iron, silicon or titanium oxide pigments may be added. The metal surface is roughened over its whole area by sand-blasting, the pits being 0À02-0À04 mm. deep. The etching fluid may be caustic soda and ethyl alcohol, to which sodium chloride may be added, for aluminium or aluminium base alloys, and dilute nitric, sulphuric, hydrochloric or hydrofluoric acid for iron base alloys. The temperature of the etching bath is 50-80‹C. The surface areas to be processed are covered with a metal foil, e.g. lead foil 0À05 mm. thick, which takes the exact shape of the surface irregularities. The entire surface is first covered with foil, the foil cut with a stylus according to the design, the foil removed from the areas to be etched, the resist applied, and the remaining foil removed. The foil is cut so that the resist extends over the areas to be etched by a distance equal to the desired depth of etching, to allow for horizontal etching below the resist. The foil is pressed on with a roller or with the thumb. The final contour of the metal is the curved contour 4, the length a c of the extending part of the resist c d being equal to the depth of the etched recesses. If deeper etching is required, a layer 8 of thermosetting resin is applied, and further etching produces the contour 7. Specification 863,066 is referred to.
Patent GB-930708-A (GB)
Title: Improvements relating to facing tiles
Inventor: CREMER GOTTFRIED
IPC: B28B11/08
Filed: 1962-03-09
Abstract: 930,708. Making ceramic tiles. FETOK G.m.b.H. March 9, 1962, No. 9061/62. Class 87 (1). [Also in Group V] A continuous method of producing ceramic tiles comprises extruding a flat strip c of the ceramic composition, passing the strip between two sets of rollers d, i to widen and reduce the thickness of the strip, cutting anchoring means into one face of the strip when between the two sets of rollers d, i, and then transversely cutting the strip into individual tiles l<SP>1</SP>, l<SP>11</SP>. After passing between the rollers d, the strip is heated (e.g. by infra-red) at e, has anchoring means (dovetailed grooves) cut in it by two knives f<SP>1</SP>, f<SP>11</SP>, is punched with holes at g, is flexed to reduce internal stresses by passing between rollers h as shown, passes between the rollers i, and is cut into tiles by a knife k. The tiles are heated, e.g. by infra-red, at m, and suspended, using the holes, in a kiln n. The holed parts (marginal strips) of the tiles are eventually cut off. Alternatively, the tiles may be suspended in the kiln n by tongs. In a modification, the function of the rollers i is performed by the rollers h.
Patent GB-197802-A (GB)
Title: Improvements in or relating to loose-leaf books
IPC: B42F3/00
Filed: 1922-03-29
Abstract: 197,802. Webster, F., Spurin, R. M., and Smith, Ltd., T. J. & J. March 29, 1922. Holders for pencils; sheets.-A spring clip 4, mounted on the inner side of the casing 1, 2 enclosing the mechanism of a loose-leaf binder, projects through slots 9 in the loose levers 7 and is adapted, in conjunction with a pencil 10 placed therein, to act as a page indicator. The clip consists of two spring tongues 4a, 4b joined by a yoke 5, and is attached to the cover-plate 1 of the casing by a staple 6 passing over the yoke between the spring tongues, the ends of the staple entering holes in the cover-plate and being bent over. The staple 6 may be dispensed with and the yoke 5 extended at its ends so as to be attached to the cover-plate similarly to the staple 6 or by rives. The clip 4 may be formed integrally with the cover-plate 1 by stamping out tongues therefrom and bending them up towards one another.
Patent GB-845572-A (GB)
Title: Improvements in grinding machines, particularly for edge-grinding ophthalmic lenses
Inventor: DAVIS HORACE CHARLES
IPC: B24B9/14
Filed: 1957-03-20
Abstract: 845,572. Grinding. AUTOFLOW ENGINEERING Ltd. March 18, 1958 [March 20, 1957], No. 9084/57. Class 60. A machine, such as for grinding the V-shaped edge portions of opthalmic and other lenses, comprises a rough-grinding wheel 17 and a finegrinding wheel 28 which are of different diameter and situated adjacent each other and adapted to be driven at different speeds, the centres of the wheels. being laterally offset so that portions of the peripheries of the wheels are substantially in a common tangential plane. The rough-grinding wheel, which may be a diamond wheel, is mounted on one end of a shaft 16 carried in a bearing pedestal 15 secured to a base 11, the other end of the shaft being connected by a V-belt 36 and pulleys 18, 38 to one end of the shaft 40 of an electric motor 12 ; the shaft 16 is provided with thrust bearings 21, 22 and an oil seal 27. The other end of the shaft of the electric motor is connected by a round belt 37 and pulleys 35, 39 to a shaft 32 mounted in a second bearing pedestal 33 and having secured thereto the fine-grinding wheel 28 which may be of carborundum. The adjacent sides of the wheels are recessed to receive the nuts securing them to their respective shafts to permit the wheels to be closely spaced from each other, and the portions of the peripheries of the wheels, being in a common tangential plane, enables both grinding operations to be carried out with one movement by an operator. A clutch may be inserted in the drive to either or both grinding wheels. The wheels are provided with guard and a flow of water controlled by a tap device.
Patent GB-107588-A (GB)
Title: Improvements in Vehicles.
Inventor: KENNEDY GEORGE COLVIN
IPC: B62B13/18
Filed: 1917-06-26
Abstract: 107,588. Kennedy, G. C. June 26, 1916, [Convention date]. Sledge velocipedes. - A vehicle particularly for use by children and invalids comprises a body suspended by springs adapted to yield in any direction on a frame which is completely enclosed by the body except for parts which project through to the axles. The front wheels may be replaced by sledge runners and the rear wheels roughened to enable the vehicle to be used on ice or snow. The vehicle may be propelled by rocking the seat. Fig. 1 shows a canoeshaped body supported by four inclined springs 22, 26 from the upper ends of tubular standards 4, 12 connected to axles 3, 8. The standard 12 is fixed to a longitudinal tube 14, but the standard 4 is free to turn and has lateral stirrups 6 to enable the occupant to steer the vehicle by foot. A seat 19 capable of rocking on a transverse shaft 18 has an arm 17 connected by a rod 15 to a crank on the rear axle.
Patent GB-116926-A (GB)
Title: Improvements in Machine Tools for Milling, Boring and Screw-threading the Casings of Engines of the Radial Multiple-cylinder Type.
Inventor: RICHARDS GEORGE
IPC: B23Q39/04
Filed: 1917-06-27
Abstract: 116,926. Richards, G. June 27, 1917. Fluid-pressure engines.-A machine for facing, boring, and screw-threading the casings a of engines of the radial multi-cylinder type comprises a facing-cutter e' on a spindle e, a boring-tool f<1> on a spindle f, and a screw-threading milling- cutter n. The spindles e, f are mounted on a slide d adapted to be moved transversely so as to bring the tools e<1>, f<1> successively into operation after each setting of the work, and are driven by a worm-shaft h and worm-wheels e<2>, f<2>, The spindle f is fed axially while working by a rack g<2> and pinion g<3> driven from the main shaft by a worm g and worm-wheel g<1>. The milling-apparatus may be of the kind described in Specification 113,135, [Class 83 (iii), Metals, Cutting], but the drive of the cutter spindle is modified as described in Specification 110,395, [Class 83 (iii), Metals, Cutting], and the feed-screw is formed on the exterior of the barrel k in which the spindle is mounted. The work a is mounted on a rotatable jig b provided with indexing mechanism.
Patent GB-1181512-A (GB)
Title: Improvements in or relating to Roller Tracks and Storage Structures including Roller Tracks
Inventor: DAVIES ALBERT STANLEY
IPC: B65G13/00
Filed: 1966-03-03
Abstract: 1,181,512. Roller conveyers. RELIANCE (CORDS & CABLES) Ltd. 31 March, 1967 [3 March, 1966], No. 9256/66. Heading B8A. A channel-sectioned structural member having corresponding notches equi-distantly spaced along the longitudinal edges thereof, is adapted for use as both the framework of a roller conveyer 31 and part of a structure supporting the said framework. In the latter case two channel sections are connected together to form an H-sectioned member 52 forming an upright or inclined strut of the structure, the struts being coupled to horizontal tubular members 55 by U-bolts 54 and plates 56. The bolts 54 register in the slots in the structural members. Each channel member forming the roller conveyer framework is connected to the horizontal members 55 via a U-bolt, the ends of which are received in holes in the base of the member. Each roller 33 is rotatably mounted on a plastic or steel shaft, the ends of which are locked in the notches by deformation of the notch entrances and/or by deformation of the shaft ends. A stop plate for items on the roller conveyer is provided at the end of the channel member. The ends of the H-sectioned struts are received in C-sectioned members each having holes therein which align with the notches to facilitate a bolted joint and endplates which either rest on the ground or are provided with holes to facilitate bolting to a further part of the structure.
Patent GB-1189574-A (GB)
Title: Data Transmission Systems
IPC: H04L27/233
Filed: 1968-02-27
Abstract: 1,189,574. Digital transmission systems. NIPPON ELECTRIC CO. Ltd. 27 Feb., 1968 [27 Feb., 1967], No. 9329/68. Heading H4P. Digital data is transmitted by discrete phase shifts, each shift occurring when there is a change in level of the input data and being less than 180 degrees and in the same direction. As described, binary input data feeds a counter which steps a switch selecting one of eight carrier waves spaced progressively 45 degrees apart, so that each input bit transition causes a shift of 45 degrees in the transmitted signal. At the receiver the demodulator gives a 5-level signal from which a threshold logic circuit derives the original binary data. If the input data is multi-level the carrier shifts unidirectionally by an angle less than 180 degrees of magnitude dependent on the change in level.
Patent GB-500407-A (GB)
Title: Improvements in or relating to apparatus for carbonizing fuels and for heat treatment of other solid or liquid materials
IPC: C10B21/16
Filed: 1938-03-26
Abstract: 500,407. Furnace flues. KRUPP AKT.- GES., F. March 26, 1938, No. 9354. Convention date, April 12, 1937. [Class 51 (ii)] [Also in Group XIII] In apparatus for carbonizing fuel and for the heat treatment of other solids and liquids, and comprising a number of flues 1 through which streams of heating medium flow in parallel, the areas of the flues or of their inlet and outlet openings 6, 7 are so increased in accordance with their distances from the main inlet 4 that the flues transmit equal quantities of heat to the material under treatment. The increase in size of inlet and outlet openings may vary with their distances from the main inlet according to a quadratic law. Each of the flues 1 may be subdivided into passages which increase in area with their distances from the gas inlet to the flue.
Patent GB-731402-A (GB)
Title: Improvements in and relating to bridges
IPC: E01D1/00
Filed: 1953-04-07
Abstract: 731,402. Bridges. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES. April 7, 1953 [April 7, 1952], No. 9354/53. Class 20 (1). A bridge has a floor framing comprising longitudinal girders 2 and transverse girders 3, the framing being prestressed by tension members, e.g. steel cables 4, extending along the girders 2 in a curve, whereby the main supporting structure of the bridge (not shown) and the girders 3 are relieved wholly or partly of the loads. The framing may have a concrete floor plate 1, the cables being anchored at their ends in the plate 1 or on the girders 2.
Patent GB-541687-A (GB)
Title: An improved type of percussion cap
IPC: F42C19/10
Filed: 1940-05-29
Abstract: 541,687. Ammunition cartridges. SCORZATO, L. May 29, 1940, No. 9419. [Class 9 (i)] A percussion cap foi cartridges for fire arms consists of two parts, a casing A and an anvil in the form of a ring G with a depending opensided loop I having a substantially spherical end J As shown, the part G of the anvil and the adjacent part of the casing are slightly conical, the part G seats on a shoulder H formed on the casing and the anvil is secured by the inturned edge K of the casing. The anvil may instead be secured by being a force fit in the casing or by soldering. The sensitiveness of the cap is determined by the thickness of the base D and the nature of the metal of which it is made. The cap may be inserted in the usual manner into the base part of the cartridge or it may be so constructed that the wall A thereof forms the shell of the cartridge. The casing and anvil may be made by a pressing, stamping or turning process and may be made of brass, bronze, copper &c. or other metal.
Patent GB-372498-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
IPC: H03D1/16
Filed: 1931-03-27
Abstract: 372,498. Valve amplifying and detecting circuits. ETABLISSEMENTS E. BELIN, 56, Faubourg St-Honore, Paris. March 27, 1931, No. 9438. Convention date, March 29, 1930. [Class 40 (v).] In order to compensate for distortion inherent in the electrical transmission of halftone pictures, the incoming currents are fed to two parallel amplifying and detecting circuits having different characteristics. The two circuits T1, T2, comprising an amplifier and push-pull rectifying valves T1<1>, T1<11>, T2<1>, T2<11> are fed in parallel from the transformer T, this input to circuit T1 being of a higher level than that of T2<1> with provision for regulating the input by tappings on the transformer secondary. The grid bias on T1<1>, T1<11> is small so that the detector current reaches saturation when the input swings exceed a certain value. As the input to T2<1>, T2<11> is smaller and the grids have a large negative bias, signals of small amplitude produce little effect in this branch of the circuit. A resistance R regulates the relative output from the two circuits. By adjustment of input, grid bias and R, the current intensities as a function of the tone values, may, within limits, be modified at will.
Patent GB-639358-A (GB)
Title: Improvements in dishes for butter and like comestibles of a plastic nature
IPC: A47G19/26
Filed: 1948-04-05
Abstract: 639,358. Butter dishes. LAVANANT, J., and HOLMES (PLASTICS), Ltd., G. April 5, 1948, No. 9473. [Class 128] A butter dish comprises a base b having apertures c through which butter is extruded in whorls or curls by movement of a plunger h into the cavity d. The plunger h may be hollow and have a screw cap g and contain a charge of ice. A cover l may be provided.
Patent GB-558594-A (GB)
Title: Improvements in or relating to joints for concrete rafts of roads, runways and foundations
IPC: E01C11/14
Filed: 1942-07-08
Abstract: 558,594. Concrete roads &c. CAWOOD, WHARTON & CO., Ltd., and FOULGER, F. July 8, 1942, No: 9498. [Class 20 (iv)] A joint and backing between bays of a concrete road or foundation consists of concrete slabs 2 with sandwiched or facing layers 3 of bituminous felt. The layers are joined by spigots 5 of concrete extending into holes in the felt. The faces of the slabs may be recessed, and holes may be provided for the reception of dowel bars connecting the bays.
Patent GB-714830-A (GB)
Title: Improvements in or relating to new compounds and process of preparing the same
IPC: C07C17/30
Filed: 1951-04-17
Abstract: The invention comprises halogenated bicycloheptenes of the formula <FORM:0714830/IV (b)/1> and halogenated bicycloheptadienes of the formula <FORM:0714830/IV (b)/2> where each X is chlorine or bromine and Y is chlorine.  These are made by Diels-Alder synthesis from vinyl chloride and hexachloro- or hexabromo-cyclopentadiene and dehydrochlorination of the product if the bicycloheptadiene is required.  The compounds are intermediates for the insecticides of the parent Specification.  Examples are given of the preparation of 1 : 2 : 3 : 4 : 5 : 7 : 7 - heptachloro - bicyclo-(2 : 2 : 1) - 2 - heptene (M.P. 125-136 DEG  C.) and 1 : 2 : 3 : 4 : 7 : 7 - hexachloro - bicyclo - (2 : 2 : 1)-2 : 5 - heptadiene (B.P. 128-145 DEG  C. at 18 mm.).  The hexabromo product is also mentioned.  Specification 614,931 is referred to.
Patent GB-829609-A (GB)
Title: Improved method of making thermal insulation material
Inventor: GAUGLER RICHARD SECHRIST
IPC: F25D23/06
Filed: 1958-03-25
Abstract: In making thermal insulation material, absorbent particles, e.g. sodium aluminium silicate particles of size 0.5-5 micron, are saturated with a gas, or with a liquid which when heated yields a gas, of lower thermal conductivity than that of air and inert to the ultimate material, e.g. dichlorodifluoromethane or sulphur hexafluoride, the saturated particles are mixed with a curable, liquid synthetic resin, e.g. liquid polyvinyl alcohol or polyisocyanatemodified polyester resin, and the mixture is subjected to heat and pressure to release the gas and inflate, set and cure the synthetic resin.  The thermal insulating material may be formed in situ between the inner and outer walls of a refrigerator cabinet, the mixture being preferably for this purpose enclosed in a water- and air-impervious bag containing a compressible layer of rock wool or glass wool.ALSO:In making thermal insulation material, absorbent particles, e.g. sodium aluminium silicate particles of size 0,5-5 micron, are saturated with a gas, or with a liquid which when heated yields a gas, of lower thermal conductivity than that of air and inert to the ultimate material, e.g. dichlorodifluoromethane or sulphur hexafluoride, the saturated particles are mixed with a curable, liquid synthetic resin, e.g. liquid polyvinyl alcohol or polyisocyanate-modified polyester resin, and the mixture is subjected to heat and pressure to release the gas and inflate, set and cure the synthetic resin.  The thermal insulating material may be formed in situ between the inner and outer walls of a refrigerator cabinet, the mixture being preferably for this purpose enclosed in a water-and-air-impervious bag containing a compressible layer of rock wool or glass wool.