baber/WOPTO huggingface dataset:
Patent GB-978163-A (GB)
Title: Improvements in or relating to rollers, calenders and like cylindrical articles
Inventor: CRASKE MAURINCE ALLAN
IPC: H05B6/14
Filed: 1962-03-05
Abstract: 978,163. Induction heating. BEANWY ELECTRIC Ltd. June 6, 1963 [March 5, 1962], No. 8423/62. Heading H5H. An inductively-heated roller comprises a magnetizable cylinder 1 and endplates 2, 3 rotatable on bearings 6 about a fixed tubular shaft 9. Secured to the shaft are discs 11-14, consisting of brass, aluminium or iron castings, having radial slots 16 in which lie magnetizable bars 18. The bars consist of a stack of laminations and extend between the endplates 2, 3 leaving air gaps of from one-thirty-second to one-nineteenth of an inch. The bars are surrounded by a copper coil 22 wound on an asbestos or fibre-glass former 21. It is stated that the brass can be formed of sintered iron or a mixture of thermosetting plastic and powdered iron. The bars are six in number and mounted in equi-spaced slots in the discs. A thermo-couple senses the cylinder temperature and controls an alternating-current mains supply to the coil through an undisclosed arrangement. The connections to the coil and thermocouple are made through the tubular shaft. It is stated that more than one coil can be employed and that with one coil the spacing of turns can be chosen to allow for loss of heat through the end-plates. It is also stated that the coil and associated core structure can be made rotatable, the supply being fed in through slip rings.
Patent GB-512904-A (GB)
Title: Apparatus for drawing and straightening rod or wire stock
IPC: B21C19/00
Filed: 1938-03-18
Abstract: 512,904. Wire-drawing lubricants. GAINES, F. W., and CRILEY, W. W. March 18, 1938, No. 8449. Drawings to Specification. [Class 91] [Also in Group XXII] The lubricant supplied to the drawing die of a wire-drawing machine (see Group XXII) may be aluminium palmitate.
Patent GB-836298-A (GB)
Title: Improvements relating to steerable vehicles wherein the steering means and anti-rollspringing means are operated or controlled by respective servo-motors
IPC: B60G17/027
Filed: 1958-03-17
Abstract: 836,298. Anti-roll arrangements DAIMLER-BENZ A.G. March 17, 1958 [March 15, 1957], No. 8502/58. Class 108(2) [Also in Groups XXIX and XXXI] Longitudinal anti-roll torsion springs 17 have the torsional loading on opposite sides, increased or decreased by a servo motor 14 operating through a rod 15 and arms 16. Movements of the servo motor 14 are controlled from a valve 20 which moves in accordance with pressures in the servo-operated steering system of the vehicle to stabilise the vehicl while travelling round bends.
Patent GB-988264-A (GB)
Title: Semi-conductor device with self-protection against overvoltage
IPC: H02H9/04
Filed: 1962-03-06
Abstract: 988,264. Semi-conductor devices. COMPAGNIE GENERALE D'ELECTRICITE. March 6, 1962 [March 10, 1961], No. 8695/62. Heading H1K. In a semi-conductor device comprising three or four PN junctions in series the two outermost junctions exhibit low reverse resistance while the inner junction or pair of junctions have conventional diode characteristics. In the three junction arrangement, Fig. 1, the inner P zone consists of a thick lightly doped region P 2  and a thin degenerate region. When the device is biased so that the middle junction is forward biased the outer junctions act as short circuits to give the normal forward characteristic of a rectifier between electrodes 5 and 6. With the bias reversed the device has a negative resistance breakdown characteristic, control of the breakdown being effected through an additional optional electrode on zone N 1 . In the symmetrical device shown in Fig. 5 the reverse biased one of the outermost junctions acts as a short circuit for either direction of the applied voltage and the remaining zones as a PNPN device with a reverse biased central PN junction. The device therefore exhibits a negative resistance breakdown characteristics in both directions. In this case the breakdown voltages for the two directions may be controlled by the bias or optional additional electrodes on the respective inner N zones. Both types of device may be made from a lightly doped P type silicon wafer, the Fig. 1 device by diffusing boron and phosphorus into its opposite surfaces to a surface concentration of at least 5 x 10<SP>19</SP> atoms/c.c. and subsequently alloying to form PN junctions in the end zones at a depth at which the concentration is 5 x 10<SP>19</SP>. In making the Fig. 5 arrangement phosphorus is diffused into both faces and an alloy junction formed with each resulting N type zone.
Patent GB-146595-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L7/04
Filed: 1919-04-07
Abstract: 146,595. Hatcher, E. C. April 7, 1919. Valves; valve-gear. - The valve formed as a sleeve 3, Fig. 1, works between an enlarged bore in the cylinder casing co-axial therewith, and a cylinder head 4 with cooling chamber 17. A gear 7 on the sleeve is driven at a quarter of the crank speed from a shaft 11 directly geared to the crank shaft, and works between the cylinder casing and head so as to position the sleeve, between which and the end of its bore is a small clearance 3<a> into which lubricant works. For multiple-cylinder engines the sleeve gears 7 mesh so as to be all driven by one shaft 11, as shown in Fig. 5, which shows the arrangement of all inlet ports and discharge ports to corresponding manifolds. For engines of direct fuel injection type a poppet valve 30, Fig. 6, may be operated by a cam 29 on the sleeve valve.
Patent GB-379242-A (GB)
Title: Improvements in or relating to centrifugal clutch devices
IPC: F16D43/18
Filed: 1932-03-24
Abstract: 379,242. Friction clutches. WESTING- HOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Else, H. D. ; 202, Fort Pleasant Avenue, Springfield, Massachusetts, U.S.A.) March 24, 1932, No. 8758. Convention.date, April 2, 1931. [Class 80 (ii).] In clutches having centrifugallyexpanded clutching members carried round by driving- pins coacting with recesses in the ends of the members, particularly as described in Specification 373,305, yielding contact-means are provided between the pins and members to prevent rattle. As applied to coupling the rotor 12 of a squirrel-cage motor to its shaft 11, friction-faced weights 21, 22, 23, retracted by garter springs 29, are driven by axial pins 31, 32, 33 engaging substantially V-shaped recesses 27 therein, and are adapted to contact with a driven drum 16. On light load, the resultant of the thrust 43 from the leading edge of a weight 21, the force of the springs 29, and centrifugal force may, as indicated by the line 44, be insufficiently directed towards the pin 31 to avoid rattle under a pulsating driving-torque. Bent blade springs 37 are accordingly disposed on the pins or, as shown, on reduced parts 36 thereof, each spring having differential action on its pair of weights while the weights are tilted about their leading edges prior to full engagement, this action tending to wedge the weights against the driving- pins. Discs 51, 52 retain the springs 29 in their recesses 28 and space the weights from the rotor 12.
Patent GB-801018-A (GB)
Title: Detergent compositions
Inventor: LUMSDEN RALPH SAMUEL
IPC: C11D9/44
Filed: 1956-03-21
Abstract: A powdered soap or synthetic detergent composition contains a colouring material in such quantity and in such a fine state of subdivision that the powder is not appreciably coloured, the characteristic colour appearing only when the powder is mixed with water.  The colouring material should not contain any particles greater than 50m  in size, the average particle size being usually less than 20m  and most desirably less than 5m .  In an example, Vulcanosol Blue 5G of average particle size 2m  is mixed with sodium perborate and the resulting mixture blended with a spray dried powder containing soap, sodium silicate, and a little moisture to yield a creamy-white powder which gives a blue solution in water.
Patent GB-182170-A (GB)
Title: Improvements in printing presses
IPC: B65H29/04
Filed: 1921-03-22
Abstract: 182,170. Woodbury, J. E. March 22, 1921. Platen presses.-Sheets are delivered from printing-machines, which are fitted with automatic feeding arrangements as in Specification 182,257, by grippers carried by a swinging frame, the gripper being rotated as the frame descends so as to cause the sheets to be deposited on a travelling band with the printed side outermost. In the machine described in the Specification referred to above the edge of the sheet is supported during the printing operation by bars 127 carried by L-shaped arms 125 fixed to a shaft 119 carried by a frame 117. This frame is oscillated about a shaft 118 by a cam 113, lever 114, and link 116, the lever 114 being operated on by a spring 115 which opposes the force of gravity tending to move the cam roller against the cam 113. The sheet is gripped to the bars 127 by grippers 129 on a shaft 128 operated from a cam 130, Fig. 2-, by means of a link 132, lever 133, link 134 operating a pair of discs 136 freely mounted on shaft 119 and serving to drive by friction a disc provided with an arm 139, which is connected by a link to an eccentric stud 141 on the gripper shaft 128. As the frame 117 descends, the shaft 119 is rotated in a counter clockwise direction by a spring-controlled chain 121 passing around a sprocket wheel 120 and connected to an adjustably pivoted arm 122, the grippers being opened at the correct time to deposit the printed sheets on a belt 144.
Patent GB-766108-A (GB)
Title: Improvements in or relating to facsimile recording apparatus
IPC: H04N1/00
Filed: 1955-03-25
Abstract: 766,108. Facsimile recorders. CREED & CO., Ltd. March 25, 1955 [April 1, 1954], No. 8856/55. Class 40 (3). In a facsimile recorder, the paper is fed forward by a driving arrangement during the actual recording operation and a gearing mechanism is operated manually to continue the feed of the paper until a predetermined length has been fed to produce a message sheet of standard length. The paper 4 from a roll 1 is fed during the recording between a roller 7 and a roller 8, driven by a oneway clutch, to a shoot 11 and through a guide channel 14. The shaft 9 of the roller 8 carries a sprocket 15 connected by a chain 16 to a sprocket 17 on a shaft 18 to which a gear sector 19 is secured. A yoke 21 pivoted on a screw 25 and provided with handle 26 carries a toothed rack 27 and also a block 28 of a friction material which, at the end of the forward movement of the yoke 21, engages a knurled cylinder 31 on the shaft 18. During the recording operation, the sector 19 is rotated clockwise by the sprockets 15, 17 so that its teeth 191 engage the teeth of the rack 27, and when the recording operation is terminated, the yoke 21 is moved forwardly by the handle 26 so that the sector 19 via sprocket 17 and chain 16 rotates the roller 8 to feed the paper 4. At the end of the travel of the yoke 21, the teeth 191 come out of engagement with the teeth of the rack 27, and the engagement of the block 28 with the cylinder 31 brakes the rotation of the shaft 18. The roller 8 in its final position operates a switch which opens the circuit of the paper-feed motor.
Patent GB-1099151-A (GB)
Title: Improvements in and relating to suspension units
Inventor: AVNER DAVID ALAN
IPC: F16F9/36
Filed: 1965-03-02
Abstract: 1,099,151. Hydro - pneumatic telescopic damper units. GIRLING Ltd. Feb. 25, 1966 [March 2, 1965], No. 8859/65. Heading F2S. In a hydro-pneumatic telescopic piston and cylinder damper unit 9, 1 having a pressurized gas space in the upper part of the cylinder a piston-rod seal (11B) adjacent the gas space, is maintained lubricated at all times by means of a capillary-like annular passage 17 between a piston-rod 6 and a tubular body 12, the lower end of the passage 17 always being located below the level of the liquid in the cylinder and the upper end leading to radial grooves 22 in the upper face of the body 12 to also distribute lubrication to a cylinder seal 11A. The body 12, made as a metallic die-casting, fabricated, or made as a plastics moulding has an upper radial flange 13 which is connected by longitudinal reinforcing webs 21 to a lower radial flange 14. In a modification, Fig. 3, not shown, a tubular body (23) with an upper end (13A) is formed with small protuberances (24) which serve to locate the body (23) spaced from the cylinder (1) and provide the lubricating passage.
Patent GB-1254515-A (GB)
Title: Ground fault circuit interrupters
IPC: H02H3/33
Filed: 1970-02-24
Abstract: 1,254,515. Protective arrangements. HARVEY HUBBELL Inc. 24 Feb., 1970 [3 March, 1969], No. 8873/70. Heading H2K. A double-pole circuit-breaker arrangement comprises mechanically interconnected circuitbreaker units 40, 46, the unit 40 having an undervoltage trip coil 44 connected across supply conductors 18, 20, and the unit 46 having a trip coil 50 energized by a "sensing circuit" 30 in response to a signal from means, e.g. a core balance transformer 22, for detecting current unbalance due to an earth fault. The circuit 30 may be connected directly across the supply conductors as shown for its "power" supply. In other arrangements one connection for the circuit 30 is to the load side of the contacts 42, Fig. 3 (not shown), or is completed through auxiliary contacts, Fig. 5 (not shown). Auxiliary contacts may be provided in an earthing circuit, Fig. 4 (not shown). These contacts could be provided by a third circuit-breaker unit ganged to the units 40, 46, in which case the third trip coil could respond to an overload condition.
Patent GB-571212-A (GB)
Title: Process for the production of ammonium sulphate and elementary sulphur
IPC: C01C1/246
Filed: 1943-06-03
Abstract: 571,212. Ammonium sulphate; sulphur. FEENY, C. J. (Consolidated Mining & Smelting Co., of Canada, Ltd.). June 3, 1943, No. 8915. Drawings to Specification. [Classes 1 (ii) and 90] Ammonium sulphate and sulphur are obtained in a continuous process which includes the steps of continuously feeding a solution containing essentially ammonium bisulphite (with or without ammonium monosulphite) and containing a lesser amount of ammonium thiosulphate and/or ammonium tri-or higher polythionates into a reaction vessel containing, under pressure, ammonium sulphate solution and free sulphuric acid, maintaining the solution in the reaction vessel substantially saturated with ammonium sulphate and at a temperature at which the production of ammonium sulphate and sulphur proceeds smoothly and rapidly, and separating and recovering the ammonium sulphate or sulphur. A suitable pressure is 30-40 lbs. per square inch and a suitable temperature is 130-140‹C. Preferably a concentration of free sulphuric acid of 10-50 milligrams per litre is maintained in the ammonium sulphate solution in the reaction vessel, either by adjusting the composition of the feed solution or by the addition of sulphuric acid or ammonia to the reaction vessel. A portion of the ammonium bisulphite solution proceeding to the reaction vessel may be by-passed, partially neutralised with ammonia, and reacted with finely divided sulphur at 20-30‹C. or with hydrogen sulphide or ammonium polysulphide in order to produce ammonium throsulphate or polythronates, the resulting solution being fed into the reaction vessel with the main body of concentrated ammonium bisulphite solution. To avoid turbulence, it is preferred to feed the bisulphite solution into the pressure vessel below the withdrawal level of the ammonium sulphate. The ammonium sulphate solution and fused sulphur are continuously and separately withdrawn, and the ammonium sulphate crystallises on the reduction of pressure; a portion of the mother liquor may be returned to the pressure vessel.
Patent GB-1128128-A (GB)
Title: Process for the preparation of complexes of transition metals with cyclooctatetraene
IPC: C08F10/00
Filed: 1967-02-24
Abstract: 1,128,128. Complexes of transition metals with cyclooctatetraene. STUDIENGESELLSOHAFT KOHLE m.b.H. 24 Feb., 1967 [9 March, 1966], No. 8941/67. Heading C2J. Cyclooctatetraene-transition metal complexes are prepared by reacting dialkali metal compounds of cyclooctatetraene with compounds of transition metals of Groups IV (B) , V (B) , VI (B)  and VIII (of the Periodic Table of the Commission on Atomic Weights and I.U.P.A.C.), e.g. Ti, Zr, V, Cr, Mo, W, Fe, Co, Ni, at 20- 200 C. with exclusion of air and humidity. The complexes prepared by the process may have formulµ M 2 (Cot) 3 , M(Cot) 2  or M(Cot) (where M represents metal and Cot represents cyclooctatetraene), and are claimed per se for M=V, Cr, Mo, W, Fe. Disodium, dipotassium or dilithium compounds of cyolooctatetraene (prepared by reacting alkali metal with cyclooctatetraene in the presence of an alkali metal transfer agent, e.g. naphthalene, diphenyl, in e.g. an ether) may be reacted with transition metal halides in a solvent, e.g. an aromatic hydrocarbon, an ether, or eyclooctatetraene, at 20-100 C. The complexes are generally isolated by extraction. Examples describe the preparation of V(Cot) 2 , V 2 (Cot) 3 , Cr 2 (Cot) 3 , Mo 2 (Cot) 3 , W 2 (Cot) 3  and Fe(Cot) (all claimed per se) and also Ti(Cot) 2  and Ni(Cot).
Patent GB-414175-A (GB)
Title: Improvements in paper and like bags or sacks
IPC: B65D33/26
Filed: 1933-03-24
Abstract: 414,175. Bag &c. seams. HOLLAND, H. G., La Corbiere, Uxbridge Common, Middlesex. March 24, 1933, No. 8994. [Class 94 (ii).] A method of sealing a seam formed by sewing along a margin of a paper &c. bag &c., which may be of the multi-ply type, wherein a U-shaped sealing strip 12 is applied to the outside of the bag at the seam so as to cover the stitches 11, is characterized by cementing the U-strip to the bag by waterproof adhesive applied to the sides of the bag and /or to the strip so that the stitch perforations will be sealed thereby when the seam is passed between the usual pressure rollers to unite the strip to the bag. The adhesive may be of a bituminous nature and applied at a temperature of about 400‹ F. Before the adhesive has set, the seam is preferably passed through grooved rollers to crinkle it at 13, and to force the adhesive into the stitch perforations. The strip 12 may be of crepe paper, cloth, &c.
Patent GB-120861-A (GB)
Title: Kerosene Vaporizer for Explosion Engines.
Inventor: WHITE LEWIS BOYD
Filed: 1918-06-04
Abstract: 120,861. White, L. B., and Mylin, A. H. June 4, 1918. Vaporizers, external.-Liquid fuel is expelled by compressed air from the reservoir 27 by way of a pipe 25, valve 22, and governor 16, to a heater 7 comprising a zigzag pipe enclosed in a casing attached to the top of the exhaust manifold 3 which is open inside the casing. Hence the oil traverses a coil 11 around the exhaust pipe 10, - where it becomes vaporized or gasified, and then passes through a carburettor 14, where it is mixed with air, and thence to the admission manifold 2. At starting, the valve 22 is closed and a valve 35 opened to admit a ' mixture of oil vapour and air from the top of the reservoir 27 through the pipe 33. The reservoir 27 is charged through the stand-pipe 28, with oil by removing the cap 29, and with compressed air through the nipple 30.
Patent GB-1427857-A (GB)
Title: Room heater
IPC: F24D3/16
Filed: 1974-03-01
Abstract: 1427857 Space heaters ANA AXLANDER 1 March 1974 [23 March 1973] 9310/74 Heading F4S A space heater comprises at least two pipe loops 2, Fig. 4, carrying a heating fluid and arranged at different levels, the loops being connected to a feed tube 8 at a level higher than that of their connection to a collecting tube 10. The intention is that in the event of an air accumulation in the pipe system such air (until vented via valves 13 or 13<SP>1</SP>) will restrict flow of heating fluid only in the upper loop or loops, whilst the lower loop or loops function normally. The pipe loops may be S-shaped as shown or they may comprise U-tubes (Fig. 5). Fig. 3 shows an arrangement of the feed pipe 8 wherein in the event of an air pocket in the jacket 12 restricting heating fluid flow out of the open upper end of pipe 15, a certain amount of said fluid can still reach the pipes 2 via ports 16 in the pipe 15. The inlets 14 to the pipes 2 may be of differing cross-section at the different levels. Fig. 2,'shows in plan, a space heating radiator in which additional pipe loops 2<SP>1</SP>, generally similar to the pipe loops 2, are incorporated (see also Fig. 1). Corrugated-plate fin elements 3, 3<SP>1</SP> are provided on the tubes 2, 2<SP>1</SP>, and the radiator comprises a front plate 4 and a rear plate 5 spaced apart by vertical plates 6<SP>1</SP>
Patent GB-292289-A (GB)
Title: A gramophone record and showcard holder
IPC: B65D85/57
Filed: 1927-04-05
Abstract: 292,289. Calder, W. V., and Lochend Printing Co., Ltd. April 5, 1927. Card and like stands. - A display device for gramophone records or circular showcards comprises two T-shaped members pivotaUy connected together and grooved to receive the record or card. As shown in rear elevation and side view, the device has upper and lower T-shaped members 1, 2, pivotally connected together by an eyelet 3. The curved edges of the members have a packing strip 4 and curved display strip 6 forming a groove 8 to receive the record or card which is inserted after the members have been rotated on the pivot to permit the insertion. The device is fitted with a suspending cord 20 and hinged strut 12 with a hinged locking piece 15.
Patent GB-833143-A (GB)
Title: Improvements relating to the production of hydrophilic substantially fluorine-free silicon dioxide
IPC: C01B33/18
Filed: 1958-03-24
Abstract: A hydrophobic fluorine-containing silica is converted to a hydrophilic substantially fluorine-free form by treatment with water vapour at a temperature of 500 DEG  C. or above, preferably 500-1000 DEG  C., until the "neutralization number" of the silica is reduced to below 15, preferably below 10.  The water vapour may be diluted with air, nitrogen, or carbon dioxide.  The water vapour may be recycled after passing through a tower containing calcium oxide.  The silica treated may be produced by burning a mixture of silicon tetrafluoride, propane, and air, and may have an average grain size of 12 mm  and a specific surface area of 228 sq. m/gm.  A table is given specifying temperatures, times, and neutralization numbers, for silica treated in a drum rotated at 5 turns/min. and supplied with water vapour at a rate of 2 kg./min. The specific surface area increased on treatment to not more than 235 sq. m./gm.
Patent GB-1216812-A (GB)
Title: Felted fibrous webs and method of producing the same
IPC: D04H1/64
Filed: 1969-02-20
Abstract: 1,216,812. Bonded wood fibres. CONWED CORP. 20 Feb., 1969 [21 Feb., 1968], No. 9320/69. Heading D1R. A web of felted cellulose-containing fibres wherein 10-100% of the fibres are chemically pulped wood fibres has a greatly enhanced resiliency when bonded by a resin binder composition of which at least one component is a celluose reactive cross-linking reagent crosslinked with the cellulose of the fibres and with at least one other corn ponent of the binder. The remainder of the fibres of the web, if any, may be cotton fibres. Examples of binders are those consisting of an urea-formaldehyde resin and a vinyl acetate polymer or a methylated methylol melamine and a vinyl acrylic oopolymer. The preferred binding agent consists of an imidazole resin and a vinyl-acrylic copolymer. Other examples are dimethylol ethyl carbamate with one of a number of latices such as a vinyl-acrylic copolymer, a vinyl acetate polymer, a styrene-butadiene copolymer or mixtures thereof. The web is formed by supplying on air suspension 64 of short wood fibres and if desired longer cotton fibres, from a duct 54 to a chamber 50 positioned over a moving belt 52. Nozzles 66 spray the liquid binder particles onto the fibres before they fall onto the belt 52 where they form a mat which is conveyed under compression rollers 72 to a dryer mechanism 74.