baber/WOPTO huggingface dataset:
Patent GB-243543-A (GB)
Title: Improvements in gate valves
IPC: F16K27/04
Filed: 1924-12-16
Abstract: 243,543. Gill, A. F. Dec. 16, 1924. Dirt, removing; closure members, wedge.-In a gate valve in which the outer extremities of the inlet and outlet passages are centred on a common axis for connection to pipes in line, the lowermost portion 10 of the internal surface of the outlet passage 4 is made parallel with the axis A, B of the valve and in unbroken continuation with the lowermost surface of the recess 9 for the gate or valve 7; by this means any solid deposits are readily cleared away by the fluid flow. The. gate is of the usual downwardlytapered form with the under surface inclined so as to cut its way in closing through any solid deposits remaining under it. In the form of valve shown the centres of the valve seat 5 and gate abutment 6 are raised above the axis A, B, and the inclined lower surface of the outlet 4 is cut away in the form of a channel 15. The gate abutment 6 is formed with recesses 17 to reduce friction.
Patent GB-601195-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/30
Filed: 1945-11-12
Abstract: 601,195. Condensers. DUBILIER CONDENSER CO. (1925), Ltd. (Dubilier, W.). Nov. 12, 1945, No. 30241. Drawings to Specification. [Class 37] A condenser uses non - porous dielectric spacers, for example, of mica, glass or ceramic, and an impregnant for filling all voids including the edges of the sheets, the permittivity of the spacers and the impregnant being not less than 6. This is stated to increase the limiting voltage without risk of breakdown. Examples of impregnants given comprise a wax-like hydroxylated castor oil such as glyceryl triliydroxystearate, possibly plasticised with oil or chlorinated diphenyl.
Patent GB-153016-A (GB)
Title: Improvements in vehicles
IPC: B60G11/08
Filed: 1920-10-26
Abstract: 153,016. Hassler, Inc., R. H., (Assignees of Hassler, R. H.). Sept. 22, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Radius-rods and torque-rods.-A road vehicle suspension system comprises a cross-leaf spring 13 shackled to each axle, radius-rods 20 connecting the axles with the frame, and a second pair of cross-leaf springs 17 shackled to the frame. The two springs of each system are arranged at different distances from their respective radiusrod centres and are rigidly clipped at their centres to horizontal plates 16. The radius-rods are secured directly to the axles. and their other ends brought together and connected to the frame through a volute spring 22.
Patent GB-533730-A (GB)
Title: Tube protector for ladies' bicycles
IPC: B62J23/00
Filed: 1939-11-17
Abstract: 533,730. Tube protectors for cycles. MICHEL, E. Nov. 17, 1939, No. 30264. Convention date, Nov. 20, 1938. [Class 136 (iii)] A tube protector for ladies' bicycles comprises parts 6, 7 of sheet-metal or other flexible material, and of part-cylindrical form so as to fit over the lower frame tube 3 and the saddle tube 2, the protector parts being provided with transverse slits 8 so that they can be bent to conform to the curvature of the tubes. The parts 6, 7 may be separate, or may be formed in one piece with a wide angular slit between the two parts, so that they can be bent relatively to one another to fit the angle between the tubes 2, 3. The protector may be made of aluminium with a textile lining. The protector may be held in position by bands or spring clamps &c.
Patent GB-210858-A (GB)
Title: Improvements in belt pulleys
IPC: F16H55/38
Filed: 1922-11-07
Abstract: 210,858. Roadless Traction, Ltd., and Penn, O. S. Nov. 7, 1922. Pulleys.-A belt. pulley has a flange b, keyed to the shaft a, and a flange c loose on the shaft a, and the flanges b, c are connected by links e, so that, when the belt n slips the flange c is angularly displaced relatively to the flange b and the flanges b, c approach each other so as to grip the belt more tightly. A spring d may normally keep the flanges b, c apart. and the links e may have spherical ends, as shown, or may be made of flexible material. Flexible sleeves l and end caps m prevent water reaching, and retain grease in, the space surrounding the links e.
Patent GB-865036-A (GB)
Title: Improvements in or relating to web winding apparatus
IPC: G03B21/43
Filed: 1959-09-08
Abstract: 865,036. Film tensioning devices. KODAK Ltd. Sept. 8, 1959 [Sept. 9, 1958], No. 30570/59. Class 98(1) [Also in Group XVI] A web 4 such as a film strip passes from a supply reel 5 over a drive roller 9 on to a take-up reel 13; the strip is engaged by tensioning members 6, 10 on either side of the drive roller, such members being displaced as the tension alters; both members are connected to an adjustable braking force applied to the supply reel so as to maintain equal tension on both sides of the drive roller. The embodiment shown is a continuous photographic recording machine, in which a document is continuously exposed, and the image recorded on a continuously moving film strip. The apparatus is built into a housing (not shown) having a central supporting wall (not shown), the part of the structure behind this wall being shown in dotted lines. The film 4 passed from reel 5 over a friction drive roller 9, the tension being sensed and maintained by a float roller 6 carried by an arm 7 keyed on a shaft 8. From drive roller 9, the film passes to a take-up roller 13, a similar tensioning member being provided by float roller 10 and arm 11 on shaft 12. Shaft 12 also carries a lever member 25, and shaft 8 a bell-crank member 21, the two members being connected by an arm 24. A spring brake 17 is attached at one end to part of the bell-crank 21 and at the other to an adjustable rod 18, the brake acting on a pulley 16 on the same shaft 15 as the reel 5. The tension of the film between roller 9 and reel 13 must be kept equal to the tension of the film between roller 9 and reel 5, to prevent slipping as the film passes over the roller. The invention provides a means of restoring this equality of tension should inequality develop. If the tension between drive roller 9 and reel 13 increases, float roller 10, and consequently shaft 12 and lever 25, move counterclockwise. Because of the connecting arm 24, bell-crank 21 moves clockwise and hence tightens the brake 17, thus slowing up the reel 5, and so increasing the tension in the other part of the film. At the same time, shaft 8, and hence float roller 6, also move clockwise. If the tension between drive roller 9 and reel 13 decreases, the above sequence operates to reduce the tension in the other part of the film also. A lever 44 has one arm 43 engaging an arm 42 of a lever 41, the latter being controlled by a roller biased against the film wound on reel 5. Thus when reel 5 is empty, a further arm 46 of lever 44 actuates a switch 48 sounding an alarm. A lever 51 similarly actuates the alarm when the take-up reel is full. If film is not being taken up properly on reel 13, because of a film break, or improper loading, that part of the film engaged by roller 10 will become slack. Hence lever 25 moves clockwise under the action of a spring 55, and, via a finger 53 and lever arm 54, actuates lever 44 to again operate the alarm switch 48.
Patent GB-701981-A (GB)
Title: Oil scraping or sealing means on pistons, shafts or plungers
Inventor: MCCARTHY WILFRED JUSTIN
IPC: F16J9/20
Filed: 1950-12-15
Abstract: 701,981. Piston packing; stuffing-box substitutes. BRITISH PISTON RING CO., Ltd. Dec, 4,   1951 [Dec. 15, 1950], No. 30604/50. Classes 122 (1) and 122 (5) A piston shaft or plunger has in a common circumferential groove, at teast two similar and similarly disposed oil scraping or sealing rings b each ring being flat at one side and having a step c or bevel at its other side adjacent to its inner periphery. A further ring having holes or grooves to allow the passage of oil to the back of the rings may be included in the groove and a still further spring ring for exerting radial or axial pressure on the other rings may be included. Specification 630,656 is referred to.
Patent GB-461296-A (GB)
Title: Improved means for preventing downdraught in chimney flues and the like
IPC: F23M9/00
Filed: 1935-11-06
Abstract: 461,296. Flue baffles for open fire - places. McLEAN, D. Nov. 6, 1935, No. 30643. [Class 126] In order to prevent downdraught in a chimney flue, the area of the flue inlet is reduced by means of a plate d supported by an arch formed by straight horizontal rods c and arched rods b, the ends f of which are flattened and clamped between nuts e at the ends of the rods c. The outer nuts e bear against the flue wall a and the arch is further supported by cement brackets h. The plate d rests on the rods b with its lower end against the wall a. Specification 439,658, [Group X], is referred to.
Patent GB-688163-A (GB)
Title: Improvements in metal curbing for use with metal floor plates
Inventor: LANSDOWN ERIC STUART
IPC: E04F19/08
Filed: 1950-12-15
Abstract: 688,163. Metal flooring. BRITISH ALUMINIUM CO., Ltd. Dec. 3, 1951 [Dec. 15, 1950], No. 30695/50. Class 20(iv) A metal curbing, or surround, for metal floor plates 8 has a rabbet along its inner edge equal in depth to the thickness of plates used, the margins of the latter bearing upon a flat horizontal surface at right angles to a complementary vertical face 7 when the plates 8 are lightly loaded and upon an inclined surface 6a when the plates are deflected downward by an increased load. An inverted T-shaped rib 5 protrudes from the underside of the curbing, sections of which are joined in alignment by channel members 14 which slidably engage the ribs 5. Sections of curbing meeting at an angle, e.g. mitred at 15, Fig. 1, are joined by a curved member 14a. the T-shaped ribs 5 near the mitre being cut away to leave clearance for the curved part 17 of the member 14a. The curbing is anchored in concrete by lugs 9 having head portions to slide along the ribs 5 and splayed ends 13, the lugs being accommodated in pockets formed in the concrete which are filled in during the grouting in of the curbing. The curbing is preferably made from extruded aluminium, or aluminium alloy, and is preferably used in conjunction with plates made of the same metal.
Patent GB-933072-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: WOODCOCK GEORGE SYDNEY
IPC: D04B11/00
Filed: 1958-09-26
Abstract: 933,072. Knitting-machines. GEORGE WOODCOCK & SONS Ltd. Sept. 24, 1959 [Sept. 26, 1958], No. 30847/58. Class 74 (2). Presser members 1 are slidably arranged within the sinker head of a straight-bar machine between each sinker and divider and are individually actuated by a pattern drum 2 to enable overall tuckwork to be produced by pressing or otherwise the beards of the needles. The drum 2 is mounted on a shaft supported by arms 2d and is adapted to be oscillated backwards and forwards by a cam C<SP>1</SP> operating a truck arm 2e. Simultaneously a cam 5 is oscillated by a cam C through links and levers to engage the drum and retain it in its advanced position giving it support when the needles are pressed against the members 1 advanced by the drum 2. The end of each member is reinforced to provide an inverted T butt formation, the rear arm of the butt being engaged by the drum, the forward arm providing an abutment engageable by a cam on the slurcock to return the member to an inoperative position and the leg of the T providing a butt portion between which and the drum a spade-like member 3a can be inserted to ensure that these members are advanced to cause the needles to press. The spade-like members are movable along the row of members 1 and are of sufficient width to cover at least the fashioning wales so that the selvedges ofa fashioned fabric are knitted in plain stitch formation without the formation of tuck work. Spade-like members 3a may also be effective between the selvedges to render any group of presser members 1 operative to ensure plain stitch formation within the width of the fabric.
Patent GB-1390474-A (GB)
Title: Multi-layer integrated optical circuit
IPC: C03C21/00
Filed: 1973-06-28
Abstract: 1390474 Light guides NIPPON SELFOC CO Ltd 28 June 1973 [28 June 1972] 30857/73 Heading G2J A multi-layer integrated optical device having a dielectric substrate, e.g. of glass, comprises first and second light-propagating layers of relatively high refractive index formed between outer layers of relatively low refractive index, the two light propagating layers being separated by an isolation layer having a refractive index lower than that of the outer layers. The layers may be formed by sputtering, ion injection or ion exchange, and in a specific embodiment the high refractive index layers are made by ion substitution obtained by applying a D.C. voltage across opposed faces of the substrate which are coated respectively with Tl 2 SO 4 -ZnSO 4  and KNO 3 , and the isolation layer by substituting NaNO 3  for KNO 3  in the above method. The refractive index may change abruptly or gradually.
Patent GB-899378-A (GB)
Title: Improvements relating to the isomerisation of paraffin hydrocarbons
IPC: B01J27/13
Filed: 1959-09-10
Abstract: The isomerisation of paraffins boiling in the C4.-400 DEG F range and also containing aromatic hydrocarbons is effected by removing the aromatics and contacting the paraffins with hydrogen in the presence of an aluminium halide and a hydrogenating metal supported on a refractory oxide; any sulphur compounds present should also be removed before isomerisation.  The aromatic content is reduced to below 0.1% by washing with 1%-25% by volume of 90%-100% by weight sulphuric acid or oleum, by extraction with a glycol by adsorption on silica gel or a 13  molecular sieve, or by catalytic hydrogenation using as catalyst a Group VIa or VIII metal supported on a refractory oxide at 100 DEG F.-800 DEG F., 100-1,000 p.s.i.g., 0.5-8 vol./vol./hr. with 500-8,000scf/hr. of hydrogen.  Preferred catalysts are nickel, chromium, tungsten and nickel oxides or sulphides, cobalt and molybdenum oxides, platinum or palladium on alumina, magnesia, silica, bauxite, kieselguhr or clays.  Sulphur is removed by a solutiser process or catalytic hydrosulphurisation, the sulphur content being reduced to below 0.001%.  In the catalytic process the catalyst, which must be sulphurresistant, may be cobalt and molybdenum oxides supported on alumina or silica-alumina; suitable conditions are 300 DEG F.-800 DEG F., 5g-1,000 p.s.i.g., 0.5-2 vol./vol./hr. with 50-4,000 scf/hr. or hydrogen.  The isomerisation catalyst may comprise alumina on which is deposited 3%-20% of the total weight) of and aluminium halide, e.g. the chloride or bromide, and 0.01%-5% of a metal of Group VIa or VIII, preferably a platinum group metal liquid or vapour phase operation is used at 50 DEG F.-400 DEG F., 0-2,000 p.s.i.g., 0.05-10 vol./vol./hr. with a hydrogen : hydrocarbon mol ratio of 0.01-20 : 1.  Specification 899,379 is referred to.
Patent GB-793974-A (GB)
Title: Improvements relating to electric insulating bushing assemblies
Inventor: PARRISS WALTER HENRY
IPC: H01B17/28
Filed: 1955-10-28
Abstract: 793,974. Insulating bushings. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 12, 1956 [Oct. 28, 1955], No. 30942/55. Class 36. A bushing assembly comprises a conductor 1, a layer of yieldable insulation 2 provided with a conductive coating. 3 connected with the conductor, a surrounding metal tube 4 connected with an outwardly extending mounting member 5, and a moulded insulating bushing 6-enclosing substantially all of the coating 3, the tube 4 and the inner portion of the mounting member 5, The bushing 6 may comprise a rigid epoxy resin and the insulation 2 may comprise a wound tape of asbestos coated with carbon applied as a liquid suspension.
Patent GB-244460-A (GB)
Title: Injection tube for syringes and the like
IPC: A61M3/02
Filed: 1925-12-08
Abstract: 244,460. Brandt, J. Dec. 9, 1924, [Convention date]. Nozzles for producing whirling and like sprays. - The nozzle 1 is provided with a screwed stopper 4 having helical or straight inclined passages on the outside. The passages may each consist of a straight part terminating in a curved part, or of a helix of varying pitch. Alternatively, the stopper may be plain, the passages being formed on the inside of the nozzle. The stopper may be cylindrical or conical.
Patent GB-617695-A (GB)
Title: Improvements in or relating to lasting machines
IPC: A43D21/12
Filed: 1946-10-18
Abstract: 617,695. Lasting-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. Oct. 18, 1946, No. 30989. Convention date, Oct. 19, 1945. [Class 17 (i)] In a lasting-machine wherein the margin of upper stock material-shoe upper, or cover of platform of wedge shoe-is worked progressively at different locations over a shoe bottom part and is pressed progressively into adhering relation with it, heating means are provided to activate a thermo-plastic cement, or to speed up the evaporation of a solvent applied to a cement coating on the upper stock and/or shoe bottom, before the stock and bottom are pressed together. The invention. is described as applied to the machine described in Specification 598,216 wherein front and rear gripper jaws 12, 10 respectively grip the stock and draw it inwardly over the edge of a shoe bottom engaging member 14, progressively around the shoe as it is fed guided against a roll 20 by a presser member 16 which moves first towards the shoe and then in the direction of feed to press the stock against the shoe bottom. In one form, shown in Fig. 1, an electric heating unit 70 connected by leads 72, 74 to a source of electric energy is placed in a bore in an extension integral with an arm 40 which forms part of the shoe bottom engaging member 14. Such member has a flat bottom surface 62 for engaging the margin of the insole and an inclined face 64 against which the lasting margin is drawn to tension it. In an alternative form, Fig. 3, a resistance coil 102 is mounted in a tube 100 carried by the head portion 24 of the machine, one end of the tube leading to a source of supply of air under pressure under control of a valve 116 operated by a link 120 from the arm 40 which carries the shoe bottom engaging member 14 so as to direct a current of hot air through an outlet nozzle 112 connected to the opposite end of the tube 100 against adhesive on the shoe bottom and-or upper stock when the machine is operating to last the shoe.
Patent GB-310020-A (GB)
Abstract: 310,020. Planchon, V. April 20, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Printing-paper. - To prevent the curling of photographic papers when immersed in liquids, a layer of collodion similar to the collodion on the sensitized surface is provided on the back of the paper. The non-sensitized layer is preferably applied before the sensitized layer.
Patent GB-864913-A (GB)
Title: Improvements in electric light fittings
Inventor: BONEHILL RONALD CHARLES
IPC: F21V17/16
Filed: 1958-09-29
Abstract: 864,913. Electric light fittings. ROBBINS & BRADLEY, Ltd. Dec. 9, 1959 [Sept. 29, 1958], No. 31013/58. Classes 75(2) and 75(3). [Also in Group XXV] An electric light fitting comprises a base part for securing to a ceiling or wall surface and a bowl with an inwardly projecting rim flange which is secured to the base part by a retaining element consisting of an arm pivoted on the base part so as to be movable from an upstanding position to one in which it engages beneath the rim of the bowl, the arm having a laterally projecting finger in position to engage the rim when the arm is upstanding, pressure on the finger causing the arm to move to retaining position under the action of an over-centre spring. Two or more retaining elements may be arranged at evenly spaced points around the base or a hook or the like may be arranged on one side of the base diametrically opposite to a single retaining device. In the form shown, the base 1 has an upstanding rim 2 ending in a flange 2a and is provided with slots 3 in which leaf springs 10 are arranged. An arm 7, which may be covered by a sheath 16 of resilient material, is pivoted on a hinge pin 6 at the mouth of each slot. The opposite end of the arm 7 is divided into two fingers 8 projecting at right angles to the arm and a centre portion 9a, 9b folded back to engage the spring 10. Pressure from the rim 15a of the bowl on the fingers 8 causes the arm to snap into retaining position under the action of the spring. The flange 2a of the base may also be provided with a layer of resilient material.
Patent GB-409396-A (GB)
Title: Improvements in and relating to electric tumbler switches
IPC: H01H23/16
Filed: 1932-11-03
Abstract: 409,396. Tumbler switches. GENERAL ACCESSORIES CO., Ltd., and JOHNSON, P. A., 18, Euston Buildings, George Street, Hampstead Road, London. Nov. 3, 1932, No. 31020. [Class 38 (v).] The U-shaped contact rocker 5 of a deadcentre snap-action tumbler switch is provided with a plate 9 having at its upper end a slot 9<a> which is engaged by a pin 11 carried by the dolly to give a positive actuation should the spring 8 fail. The plate 9 has extensions 9<c> which are bent round and serve to secure the contact bridge 7 to the rocker 5, and an eye 9d serves for the attachment of the spring 8. If desired two upstanding arms 9 may be provided engaging two pins on the dolly, and instead of being separate the plates may be in the form of lugs struck up out of the limbs of the U- shaped contact rocker.
Patent GB-440478-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B17/00
Filed: 1934-04-24
Abstract: 440,478. Refrigerating. ELECTROLUX, Ltd., Luton, Bedfordshire.- (Assignees of Platen-Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm) April 24, 1934, No. 31030/35. Convention date, April 25, 1933. Divided out of 438,959. Drawings to Specification. [Class 29] Absorption machines and systems.-In inter. mittently-acting apparatus of the kind in which absorption solution circulates during expulsion periods between the generator and an unheated storage vessel, the solution is maintained by pumping action at different levels in different parts of the apparatus, the level in the generator being preferably the highest. The descriptive matter of the Specification is identical with that of Specification 438,959, but the claims differ.
Patent GB-280951-A (GB)
Title: Improvements in and relating to windings for electrical apparatus
IPC: H01F27/28
Filed: 1927-11-18
Abstract: 280,951. British Thomson-Houston Co., Ltd., (Assignees of Palueff, K. K.). Nov. 18, 1926, [Convention date]. Coils and conductors. - In windings for electrical apparatus such as transformers and reactors in which the turns comprise at least four parallel connected strands radially superposed, the strands are superposed at three points along the winding in such a manner as to produce approximate equality of resistance and reactance, and therefore of current in the different strands. In the case of a sixstrand winding a transposition is made at 12 midway of the length of the winding in which the two groups of strands at opposite sides of the centre of the winding are interchanged and the individual strands of each group are reversed as regards their relative positions in the winding. At equal distances from the centre and ends of the winding. transpositions 11, 13 are made in which the two groups at opposite sides of the centre line are interchanged but the strands in each group retain the same relative positions in the winding. Alternatively a similar effect may be achieved by making two transpositions as at 12 and one transposition similar to the transpositions indicated at 11 and 13. In the case of a five-strand winding, the centre strand retains its position throughout the length of the winding, and the two strands on each side thereof are transposed in the same manner as the two groups in the six-strand conductor described.