baber/WOPTO huggingface dataset:
Patent GB-1457631-A (GB)
Title: Inside repair seal for low pressure piping
IPC: F16L55/163
Filed: 1974-01-24
Abstract: 1457631 Internal sealing device for pipes; pipe couplings DRESSER INDUSTRIES Inc 24 Jan 1974 [5 Feb 1973] 03282/74 Headings F2P and F2G A sealing device for repairing a leak in a pipe comprises an annular, flexible gasket having a puckered outer surface for engagement with the inner wall of the pipe and a backing member extending circumferentially about the inner surface of the gasket for effecting a sealing pressure between the gasket and the inner wall of the pipe. The gasket 12, Fig. 2, which has an irregular cross-section, Fig. 5, has a puckered surface 13 which comprises a plurality of peripheral ribs 16 which engage the inner surface of pipe 10 sealing the leak 15. Each of the outermost ribs merge with the concave faces 47, 48 of the gasket to form flange ribs 49, 50 respectively. The gasket is secured by a circumferential backing member 19 positioned within the annular groove formed by ribs 49, 50 on the inner surface of the gasket. The backing ring may comprise a pair of axial, juxtaposed, opposite hand elements 21, 22 having a "5"- shaped cross-section, and which are divided into arcuate segments. The elements have sections 56 which wrap around the flange ribs to confine the width of the outer surface 13 of the gasket to maintain a uniform pressure on the gasket and to prevent axial movement. The backing ring segments are secured in end-toend relationship by a plurality of arcuate splice plates 23 which fit within the channel between flange 54 and curved section 56 and span the abutting ends of adjacent segments to which they are attached by screws 24 which pass through apertures 25, 26 in the plate and into tapped holes 27, 28. At least one of the apertures in each plate is a slot to allow circumferential adjustment of the segments. The backing ring is compressed by a screw jack,Fig. 6 (not shown), adapted to engage slots near the ends of adjacent segments so that they are spread apart sufficiently to allow a filler segment 46 to be placed between them, Fig. 2, the jack then being removed. Only a sufficient number of filler segments are used to give the appropriate pressure, some adjacent segments being left in abutment. The use of this sealing device enables a leak gap 15 between two axially displaced pipe sections, Fig. 5, to be repaired.
Patent GB-1155677-A (GB)
Title: Rotary Kilns with Planetary Coolers
Inventor: JENSEN FLEMMING EDVIN
IPC: F27B7/16
Filed: 1968-01-22
Abstract: 1,155,677. Cooling cement clinker; discharging rotary kilns. F. L. SMIDTH & CO. A.S. 22 Jan., 1968, No. 3289/68. Heading F4B. In a rotary kiln having planetary coolers of the uphill type, each cooler has helical, troughshaped conveyer flights 9 throughout its length, an internal layer of insulation 12 in the hotter part of the tube and an external layer 11 in the cooler part. The insulation 12 is in the form of plates 16 disposed in recesses below wearing plates 14 attached to the cooler shell 6 by bolts extending through holes 17 with head recesses 15. The plates 14 are slightly spaced from said shell by ribs 18. The conveyer flights comprise sections 13, each carried by a wearing plate 14 and stiffened by external stays 19 and/or internal ribs 20.
Patent GB-1534564-A (GB)
Title: Pneumatic tyres
IPC: B60C15/05
Filed: 1976-01-28
Abstract: 1534564 Tyre bead ring assemblies MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS MICHELIN) 28 Jan 1976 [29 Jan 1975] 3339/76 Heading B7C A tyre bead ring assembly comprises at least two bead ring elements having a peripheral layer formed of a plurality of cords, e.g. of metal helically wound around a core, the bead ring elements having a line contact with each other circumferentially of the tyre, and the direction of twist of the peripheral layer of cords of one bead ring element being opposite to that of the peripheral layer of cords of the other or another element. The element 33 is of synthetic material and the tyre preferably includes a radial ply carcass.
Patent GB-595148-A (GB)
Title: Improvements in or relating to the electrodeposition of lead
IPC: C25D3/36
Filed: 1945-02-12
Abstract: As an addition agent in a lead plating bath there is employed a polyether of the general formula R1X[R2O)n(R3O)n1]n11R, where X is oxygen, NH or sulphur, R1 and R are hydrogen, hydroxyl, or a monovalent organic radical, R2 and R3 are bivalent hydrocarbon radicals and n, n1 and n11 are integers. The polyether preferably has a molecular weight of at least 700. It may be derived from polyethylene, propylene, butylene, cyclohexane, or styrene oxides; substitution may be by a monovalent aliphatic radical or by a monovalent isocyclic radical, e.g. a terpineol residue, a b -naphthol residue or a parahydroxydiphenyl residue.  Production of polyalkylene oxides having terminal substituents may be brought about by condensing suitable compounds with the alkylene oxide using a large number of moles of the latter to each mole of the former.  Substances which may be reacted with polyethylene oxide include (a) monohydric alcohols such as methyl, cetyl, phenyl ethyl and octadecenyl alcohols, (b) polyhydric alcohols such as ethylene glycol, sorbitol and penta-erythritol, (c) aldehydes such as acetaldehyde, myristic aldehyde, benzaldehyde, phenyl acetaldehyde, (d) monocarboxylic acids such as acetic, stearic, benzoic and undecylenic acids, (e) polycarboxylic acids such as oxalic, maleic and phthalic acids, (f) acetals such as acetal and phenyl acetaldehyde dimethyl acetal, (g) phenols such as phenol, catechol, naphthol and cresol, (h) amines such as ethylamine and aniline, (i) amides such as formamide, benzamide and stearic amide, (j) ketones such as acetone, methyl ethyl ketone or acetophenone, (k) unsaturated compounds having an ethylenic or acetylenic linkage.  The following are examples of preparations: (i) one-twelfth mol. of terpineol is reacted with one mol. of ethylene oxide, (ii) parahydroxydiphenyl is reacted with 12 molecular equivalents of ethylene oxide, (iii) equimolecular amounts of phenol and ethylene oxide are reacted, (iv) equimolecular amounts of glycerol and ethylene oxide are reacted. The following are also referred to: glycol and polyglycol ethers of isocyclichydroxyl compounds; monocarboxylic acid esters of polyglycerol and its analogues; a compound prepared by introducing an alkylene oxide into a tannic acid solution at 0-10 DEG  C.  Specifications 317,770, [Class 2 (iii)], 346,550, 380,431, 406,443, 420,518, 432,356, 434,424, 465,048, 488,907 and 505,016 are referred to.
Patent GB-1198366-A (GB)
Title: Chlorinated Cyanuric Acids
Filed: 1968-01-23
Abstract: 1,198,366. Chlorocyanuric acids. FMC CORP. 23 Jan., 1968 [15 Feb., 1967], No. 3454/68. Heading C1A. Di- and/or tri-chlorocyanuric acid is produced by reacting an aqueous mixture of cyanuric acid and aqueous alkali with chlorine, there being present in the reaction mixture in which chlorinated cyanuric acid is being formed, a minor amount of a surface-active alkali metal alkyl sulphate, a surface active alkyli metal alkyl aryl sulphonate, an alkali metal hydroxide or mixtures thereof, preferably while maintaining the pH at 1À0 to 4À5. Both surface-active alkali metal alkylaryl sulphonate and alkalimetal hydroxide may be present while maintaining the pH at 3À0 to 4À5. The recommended amount of surface-active agent is 50 p.p.m. to 500 p.p.m. and 500 p.p.m. to 5000 p.p.m. of alkali metal hydroxide. The alkylaryl sulphonate preferably contains 8-20 C atoms in the alkyl radical and the aryl radical may be benzene or naphthalene. Sodium lauryl sulphate may also be used.
Patent GB-922820-A (GB)
Title: Differential transformer transducers
Inventor: BANKS CECIL HENRY
IPC: G01D5/22
Filed: 1961-01-31
Abstract: 922,820. Automatic regulation. WITTON ELECTRONICS Ltd. Jan. 31, 1962 [Jan. 31, 1961], No. 3570/61. Class 38 (4). [Also in Groups XXXVIII and XL (c)] A voltage regulating network N. comprising Zener diodes Z shunted by a thermistor TH, is connected to a multivibrator circuit comprising two transistors T, each having a coil PW in its collector circuit. The output across a capacitor C1 connected between coils PW may be rectified and fed in opposition to the supply S at an appropriate point in network N.
Patent GB-805261-A (GB)
Title: Improvements in and relating to heat exchangers
Inventor: RAVEN RICHARD TEBBIT
IPC: F28F3/12
Filed: 1954-02-08
Abstract: 805,261. De-icing and cooling aircraft surfaces. BIRMETALS Ltd., and ENGLISH ELECTRIC CO. Ltd. May 9, 1955 [Feb. 8, 1954], No. 3594/54. Class 4. [Also in Groups XIII and XXII] A heat exchanger which may form part of an aerofoil or other aircraft surface for the purpose of de-icing or cooling at high speed has longitudinal passages A, B, ... , and dividing walls A<SP>1</SP>, B<SP>1</SP> ... , adjacent dividing walls being cut away at each end of the sheet to form recesses such as 5, 5a those at one end of the sheet overlapping the recesses at the other end, as shown, in Fig. 2, to provide a tortuous path for the refrigerant, &c. Sheets are formed with corresponding tongues 3 and grooves and are joined along their length, two or more sheets forming a heat exchanger, then crimped at the ends and welded. Holes 6 and 7 permit circulation of refrigerant. In a modification, the ends may be sealed by a separate metal strip. As shown in Figs. 1 and 2, the sheet is formed by extrusion but it may be cast. Alternatively the heat exchanger may consist, Fig. 6, of flat plates 15 enclosing longitudinal strips 16 having recesses cut as already described. Welding, brazing, pressure welding, or an adhseive may be used throughout the assembly.
Patent GB-1245734-A (GB)
Title: Low temperature circuit elements and methods of constructing low temperature circuit elements
IPC: H01L39/22
Filed: 1970-01-26
Abstract: 1,245,734. Superconductor devices. FORD MOTOR CO. 26 Jan., 1970 [6 March, 1969], No. 3634/70. Heading H1K. A device comprises two metal members one having a flat surface and the other having a tapered end forming a small area contact with the flat surface, one of the members being of superconductive metal and the other being of normal or non-superconductive metal. The tapered end may be in the form of a point or a knife edge and the device is said to exhibit the AC Josephson effects and may be used for the detection or emission of electromagnetic radiation, the measurement of voltage or frequency or as a non-linear circuit element. The flat surface and the tapered end may be prepared by etching. The superconductive member may be Nb or Ta and the other member may be of Au, Ag, Pt, Cu, Ni or Fe. In two particular arrangements the tapered members are of Nb and Ta and the flat members are of Ni and Cu respectively.
Patent GB-1460021-A (GB)
Title: Electric switches
IPC: H01H1/24
Filed: 1973-01-24
Abstract: 1460021 Switch contacts; retractive switches GENERAL ELECTRIC CO Ltd 17 Jan 1974 [24 Jan 1973] 3636/73 Heading H1N An electric switch comprises a helical metal wire spring 10 movable to bridge fixed contacts 34, whereafter further movement of the spring 10 causes it to wind or unwind to effect relative movement between adjacent turns to provide a wiping action between spring 10 and contacts 34. Spring 10 rests on peg 12 projecting from actuator 14 operated by pushbutton 24 and has tangential end portions 16 engaging in recesses 18 against shoulders 17 on actuator 14 such that the helical portion of spring 10 rests on top of peg 12, depression of pushbutton 24 moving spring 10 into engagement with contacts 34 and further depression causing the helical portion of spring 10 to rise off peg 12 and ends 16 of spring 10 to straighten against shoulders 17 to stress spring 10 to cause adjacent turns to slide relative to each other, until stop 36 projecting from actuator 14 behind spring 10 engages base 26. Spring 10 is of gold plated phosphor bronze wire and contacts 34 are gold plated copper staples with their ends driven through printed circuit board 26 and soldered on the underside 40 to printed circuit connections. Projection 28 on actuator 14 slides in hole 30 in board 26 and carries retractive spring 32. A plurality of switches may be mounted on board 26 and interconnected to form a matrix, Fig. 4 (not shown), e.g. for a telephone switchboard.
Patent GB-102199-A (GB)
Title: Improvements in or relating to Apparatus for Conveying Grain or the like Suction.
IPC: B65G53/60
Filed: 1916-03-11
Abstract: 102,199. King, W. K. S., and Boby, Ltd., R. liarch 11, 1916. Pneumatic conveyers.-Apparatus for the conveyance of grain &c. by suction, having a driven vane or similar discharger E, is provided with a device, such as a governor C, controlling an air valve, such as a double balanced valve B, adapted in the event of stoppage of the discharger E automatically to prevent further conveyance of the material. The air valve may be placed in the main suction duct instead of near the receiver A. An electric-bell warning may be given by the governor C on stopping due to the stopping of the discharger E.
Patent GB-524809-A (GB)
Title: Improvements in or relating to magnetos for internal combustion rammers
IPC: H02K35/02
Filed: 1939-02-04
Abstract: 524,809. Magneto ignition for internal combustion rammers. BOSCH GES., R. Feb. 4, 1939, No. 3739. Convention date, Feb. 4, 1938. [Class 7 (iv)] [Also in Group XXXV] An ignition magneto is mounted on an internal-combustion rammer with the axis of the oscillating permanent magnet 2 extending in the same direction as the stroke of the rammer. The spindle 36 is actuated by tripmechanism from the thumb-lever 49 and enclosed in a stationary sleeve 30. Pins 37 make a driving connection with the outside sleeve 28 on which the magnet 2 and interrupter cam 10 are mounted. Axial movement of the magnet is permitted, the shock of the rammer being taken up by the spring 32. Frictional resistance is reduced by the interposition of washers 34, 35 of semi-circular crosssection between the spring and its seating. In a modification, Fig. 3, the permanent magnet 69 rocks between four pole-shoes 65-68.
Patent GB-1179301-A (GB)
Title: Method of Depositing Heat Fusible Material and Apparatus therefor.
IPC: C23C4/12
Filed: 1967-01-25
Abstract: 1,179,301. Spray-producers. SEALECTRO CORP. 25 Jan., 1967 [27 Jan., 1966; 23 Sept., 1966], No. 3809/67. Heading B2F. A plasma spray gun suitable for coating articles with metals, ceramics, or plastics materials such as polytetrafluoroethylene, comprises an inner electrode 12A, an outer generally cylindrical nozzle electrode 14 arranged coaxially with respect to the electrode 12A, an inlet 28 for a plasma-forming gas under pressure, and a plurality of converging distributing passages 30 which direct the gas into the confined space between the electrodes so as to produce laminar flow. The portion 16A of the electrode nozzle 14 is finely tapered and is upstream of an expansion portion 16C. The powder is fed to the junction 16B of the nozzle electrode portions through a plurality of passages 36 which open tangentially into the interior of the nozzle electrode. The powder may be fluidized by a plasma-forming gas. Both electrodes are water-cooled. The angle (A), Fig. 2 (not shown) of the inner electrode is greater than the angle (B) of the outer electrode. The electrode nozzle 14 may be of copper with a coating in the passage 16 of an alloy having a high nickel content. A plasma-forming gas having a nitrogen to helium ratio of 6:1 is passed through the gun. Generally spherical particles of tetrafluoroethylene are passed through the passages 36 and with the workpiece two to three inches from the end of the gun a coating may be built up at the rate of 1 mil per minute per 36 square inches of surface coated.
Patent GB-186557-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P25/26
Filed: 1922-02-10
Abstract: 186,557. British Thomson - Houston Co., Ltd., (General Electric Co.). Feb. 10, 1922. Motors, controlling.-Electric motors for working hoists &c. are provided with a normally applied brake and an auxiliary motor arranged to relieve the brake with a force decreasing as the speed of the working motor increases. In the system shown, a working induction motor 10 is arranged in cascade with an auxiliary braking motor 13. A brake 12, applied by gravity, is relieved by the movement of a connecting-rod 14 from a spindle 17 geared to the motor 13. Cascade connections from the main motor to the auxiliary motor are established through a switch 18 when the master controller 20 is turned to the lowering side, so that the brake is at first fully relieved and afterwards automatically reapplied as the main rotor speeds up. Resistances R<4> and R<5> are initially inserted in the rotor circuit of the braking motor in order to render its subsequent action more sensitive, and resistances R<6> are controlled by a switch 23 in order to allow the braking effect to be varied by the operator. A oneway slipping clutch 15 prevents injury to the braking motor. Specification 153,626 is referred to.
Patent GB-757245-A (GB)
Title: Holders and brackets for supporting ties
IPC: A47G25/74
Filed: 1954-02-11
Abstract: 757,245. Tie racks. JARRETT, RAINSFORD & LAUGHTON, Ltd., and LAUGHTON, H. A. J. Nov. 4, 1954 [Feb. 11, 1954], No. 4006/54. Class 52(5). A tie rack comprises a tray member having means for attachment to a wall &c. and a support member mounted rotatably with respect to the tray and having integral arms radiating from a boss, the major portion of the support being covered by the tray. As shown, a boss 6 having arms 7 is rotatably mounted by a screw 23 on the underside of a part-circular tray 15 which is provided with bearing surfaces 13 and 22 for the rims 12 and 10 on the boss. The tray is provided with apertured attachment lugs 18 and is divided by ribs 20.
Patent GB-1273120-A (GB)
Title: Television line timebase circuits
Inventor: CARPENTER BRIAN ROBERT
IPC: H04N5/63
Filed: 1971-02-05
Abstract: 1,273,120. Line lime-base supply circuits. PYE Ltd. 5 Feb., 1971, No. 4032/71. Heading H3T. [Also in Division H2] A driver stage of a line time-base derives its power supply from the line output transformer and starting is effected by a further supply including a semi-conductor device which disconnects the further supply when the supply from the time base becomes available. As shown, a mains supply provided through rectifier 27 supplies the line output stage W3, TS5, TS6 and initially the reactor, oscillator and buffer TS1, TS2, TS3 stages via a diac D. A winding W2 on the transformer provides a D.C. supply for these stages via rectifier system 15 to 20 and when its voltage approaches the supply derived from the mains the voltage across the diac falls to a low value and it becomes conducting. The mains supply for the driven stages is derived via a potentiometer 31, 32 of high resistance which charges 33 capacitor with sufficient energy to initiate operation. A negative D.C. supply may be derived from 18.
Patent GB-139463-A (GB)
Title: Improvements in or relating to transfer mechanism for calculating machines
IPC: G06C15/38
Filed: 1920-02-10
Abstract: 139,463. Odhner, V. J. Feb. 22, 1919, [Convention date]. Transfer mechanism. - In machines of the cam-disk and pin-wheel type, the transfer pin 4 is loosely mounted in the radial groove 5 in the pin wheel 1 and is pressed towards the bottom of the groove by a return spring 8. A pin or lug 7 on the transfer pin projects through a hole in the cover-plate 6 of the groove and the spring 8 engages this lug. The pin 4 is engaged by the transfer arm 9 in the usual way.
Patent GB-240708-A (GB)
Title: Improvements in or relating to railway rail joints and joint chairs
IPC: E01B11/62
Filed: 1925-06-04
Abstract: 240,708. Sutton, T. H. A. June 4, 1925. Joint chairs A have extended jaws B secured to a fish-plate F which lies wholly within the rail recess and is engaged by a wooden key J bearing against the chair jaw C. Specifications 13688/99 and 26640/07 are referred to.
Patent GB-398800-A (GB)
Title: Improvements in presses for bending or straightening metal bars or the like applicable to other like presses
IPC: B21D3/10
Filed: 1932-02-11
Abstract: 398,800. Mechanical presses. BROWN BAYLEY'S STEEL WORKS, Ltd. and CLIFTON, R., Leeds Road, Sheffield. Feb. 11, 1932, No. 4133. [Class 87 (ii).] Ina press, bending-machine, &c., in which the workpiece is positioned between abutments a<1> on a slide a and abutments bl on a slide b operated by eccentrics o, the stroke of the slides is varied by mounting the eccentrics on cams l on a rod c, Fig. 4, adjusted by hand-gear h. The cams l are keyed to the rod c and to the eccentrics, and stroke variation is made by varying the throw of the eccentrics. The workpiece is supported on centres t and is rotated for observing the eccentricity by driven wheels p upon which the bar is pressed by rollers ql on spring-pressed arms q.
Patent GB-490370-A (GB)
Title: Improvements in or relating to gas burners for gas-fired tubular boilers and heaters
IPC: F23D14/00
Filed: 1937-02-12
Abstract: 490,370. Pilot jets. GRATER, N. Feb. 12, 1937, No. 4162. [Class 75 (iii)] In burners for gasfired tubular boilers and heaters of the kind comprising one or more gas passages having a plurality of nozzles for projecting flames into the open ends of the combustion tubes of the boiler &c., a pilot jet is directed through each nozzle for maintaining a flame when the main gas supply is shut off. As shown in Fig. 1, a header a is divided by a partition a<1> for supplying gas through main risers d to inlets o in the 'nozzles i and through auxiliary risers g to pilot jets n in the inner ends of the nozzles. Each nozzle has a cylindrical extension j provided with air holes k. A snap-action valve is provided to shut off the gas supply to the main space of the header. When the valve is open, the nozzles are supplied substantially entirely through the risers d. On closing the valve, gas issues from the pilot jets i into the nozzles to maintain the flames. An adjustable byepass may be provided to keep the header full of gas when the valve is closed. In a modification, a pilot jet s, Fig. 2, projects into the nozzle p, which secures a shield q. The header a may be provided with a central pilot-header tube, instead of the partition a<1>, to act as a stay.