baber/WOPTO huggingface dataset:
Patent GB-1034526-A (GB)
Title: Improvements in electrically conductive stable coating
IPC: H01C17/065
Filed: 1963-04-22
Abstract: An article of manufacture comprising an insulating base and an electrically conductive composition adhered thereto is produced by applying to the insulating base an electrically conductive composition comprising an aqueous dispersion of particles of electrically conductive material e.g. graphite, and a stabilized colloidal silica in the form of dispersed particles having substantially no alkali combined within the silica particles, and heating the electrically conductive coating to a temperature sufficient to stabilize the coating whereby its resistance is not permanently affected by subsequent variations in the moisture content thereof.  The coating may be heated to a temperature of at least 312 DEG F. to effect stabilization thereof, electrodes may be applied at spaced points on the coating and a sheet of insulating material adhered over the coating and electrodes with sodium silicate adhesive, the resulting element being stored in a wet condition at room temperature so as to allow the coating to dry.  Insulating material and bases specified are Kraft paper, asbestos and "Teflon" (Trade Mark).  The coating may be applied by spraying or any conventional procedure.
Patent GB-916361-A (GB)
Title: Improvements in or relating to change-speed gears
IPC: F16H29/08
Filed: 1960-05-05
Abstract: 916,361. Variable-speed ratchet gear. USTAV PRO VYZKUM MOTORVYCH VOZIDEL. May 5, 1960 [May 6, 1959], No. 15935/60. Addition to 868,736. Class 80 (2). In a variable-speed ratchet gear similar to that shown in Figs. 3-6 of the parent Specification, the contact-pieces 3<SP>1</SP> are shaped to provide a uniform output speed for each transmission ratio and the tensioning means for the drive chains 3 are modified so as to increase the tension as the ratio is increased. The transmission comprises a driving crank-shaft 1 having four cranks with contact rollers 2<SP>1</SP> engaging the rigid contact pieces 3<SP>1</SP> which are attached to the chains 3 which engage sprockets 10 forming the driving members of ratchets on an output shaft 12. Each contact-piece 3<SP>1</SP> is pivoted at 4 to an adjustable support 5 and is shaped as shown to give a uniform output speed at each gear ratio. The free ends of the chains are secured at 90 to sprockets 15 which are freely mounted on a shaft 88 and are coupled in pairs, the chains 3 of each coupled pair being associated with cranks offset by 180 degrees and passing in opposite directions around the sprockets. The shaft 88 is adjustable along a rod 91 by means of a cam member 87 operatively connected to the shaft which is contacted by a roller 94 of an arm 95 adjustably mounted on a toothed segment 100 pivoted at 96 and meshing teeth 99 formed on the adjustable support 5 which pivots about pins 18. A rod 102 is pivotally connected to each contact-piece 3<SP>1</SP> and is biased by springs 106 which bear, through a carriage 107 and rollers 108 on a track 109 formed on the support 5. In the neutral (shown) and low ratio positions of the support 5, the carriages 107 of the tensioning devices bear against stops 111 on the support; on increasing the ratio the carriages abut fixed stops 110, and further movement of the support 5 displaces the carriages relative thereto and increases the loading of the springs 106 to increase the tension of the chains 3.
Patent GB-355708-A (GB)
Title: Internal combustion rotary engine
IPC: F01C1/44
Filed: 1930-05-23
Abstract: 355,708. Rotary engines. MAARSEVEEN, A. C. VAN, 25, Anna van Buerenstraat, The Hague. May 23, 1930, No. 15942. Convention date, May 23, 1929. [Class 110 (ii).] Fixed-abutment type; working-fluid supply; valves, distributing and cut-off ; cooling and heating parts, governing and regulating.-An explosion or compression-ignition rotary engine comprises engine and air compressor locked together and rotating directly, or through gearing, on the same shaft, in which vanes are hinged to a concentric rotor and are turned into recesses in the rotor when passing abutments which project from the casing into the annular working spaces. Fig. 2 illustrates the engine in which gas enters combustion chambers 17 by way of valves 16 from the compressed air or gas receiver 13 and in the case of an explosion engine is fixed by a plug 21 and expands, driving hinged vanes 20 and the rotor 45. The vanes are pivoted eccentrically to rollers 23 which move in guides 24, the rollers rolling up guide-ways 26 to turn the vane into its recess 27 to pass the abutment, and down guide-ways 28 to turn the vane into operative position again. The gases are exhausted through ports 29 and may be led through a tube in the annular compressed air receiver 13 for preheating purposes when the engine operates on the compression-ignition principle. The vanes in the compressor are pivoted on spindles 35 and compress air in an annular chamber 30 which is connected to the receiver 13 by spring-loaded non-return valves. In an alternative construction the compressor consists of a plurality of pistons reciprocating in cylinders around the shaft. Vanes 20 may be hollow and have cooling water circulated through them by means of a centrifugal pump, the water being withdrawn by centripetal action. The abutments may also be rotary and watercooled. The engine drives the shaft 1 through a tapered clutch 43, 44 and speed-reduction gearing. A ball 46 in a socket of the rotor causes an axial movement of a member 48 which has a helical groove shaped on its surface, and a ball in a socket of the member 48 co-operates with a helical groove 50 on the surface of the part 51 which is attached to the shaft. The speed-reduction gear is described in Specification 355,718, [Group XXIV]. The engine is declutched by means of a worm and a threaded nut 45 which moves the tapered clutch member 44 axially against a spring 44a.
Patent GB-160736-A (GB)
IPC: F41A27/08
Abstract: 160,736. Schneider et Cie. March 20, 1920, [Convention date]. Field carriages; mountings; recoil apparatus.- Consists in modifications of the apparatus described in Specification 130,718 for increasing the range of elevation adjustment in gun carriages and mountings by a displacement of the trunnions about the elevating pinion as centre. Means for varying the length of recoil in accordance with the adjusted position of the trunnions may be combined with the apparatus, and also means for balancing the weight of the gun and cradle about the axis of the elevating pinion. In the form shown, spring-mounted bearings I for the trunnions b of the cradle B are carried by two side members H journaled at the rear on the axles e', e<2> which have the same geometric axis as the elevating pinion E, and are mounted in the cheeks of the gun carriage C. The gun is elevated by the gearing e, E, D, and, to change the range of elevation, the gun, cradle and side frames are turned around the axles e<1>, e<2> by means of the gearing W<3>, W<2>, W<1>, W, H<1> assisted by a spring balancer X. The side members H are locked in the adjusted position by a transverse bolt R which is passed through holes in the carriage cheeks and through registering holes in the side members H, H. The balance cylinder X is jointed at x to the carriage C and the rod Y, carrying a finger y, is jointed at y<1> to a web H<2> connecting the side members. On raising the side members about the rear axles, a. rod Z, which is slidably-mounted on the web H<2>, is pushed forwards and turns the piston rod s of a variablestroke recoil brake S by means of a lug f on a sector-gear F engaging in a cam-groove z<1> in the rod Z. In a modification, the rack-and-pinion gear H', W is replaced by a two-cylinder hydropneumatic jack, and the recoil is adjusted by causing the insertion of the locking-bolt R, in the position for the higher range of elevations, to connect-up automatically a short-stroke recoil brake.
Patent GB-953875-A (GB)
Title: New pyridinium compounds, a process for the manufacture thereof and compositions containing same
IPC: A23K1/16
Filed: 1960-05-06
Abstract: The invention comprises compounds for use in controlling coccidiosis infection in poultry having the formula: <FORM:0953875/C2/1> wherein X and Y are identical or different halogen atoms (e.g. chlorine or bromine).  The above compounds are prepared by heating a 4-amino-5-[(C1-7 alkoxy)-methyl]-2-propyl-pyrimidine, a picoline and a hydrogen halide, and, if desired, converting the resulting pyridinium halide hydrohalide to the halide or to another halide hydrohalide.  4-Hydroxy-5-[(C1-7 alkoxy)-methyl]-2-propyl. pyrimidines are prepared by reacting either an alkalimetal salt of a C1-7 alkyl a -[(C1-7 alkoxy)-methyl]-b -hydroxy-acrylate or an a -[(C1-7 alkoxy)-methyl]-b -(C1-7 alkoxy) acrylonitrile with butyramidine hydrochloride.  Butyramidine hydrochloride is prepared by reacting a mixture of hydrogen chloride, C1-7 alkanol and ammonia with butyronitrile.  Alkali metal salts of C1-7 alkyl a -[(C1-7 alkoxy)-methyl]-b -hydroxy-acrylates are prepared by reaction between a C1-7 alkyl acrylate, a C1-7 alkyl formate and an alkali metal C1-7 alkoxide.  a -[C1-7 Alkoxy)-methyl]-b -(C1-7 alkoxy)-acrylonitriles are prepared by alkylating the corresponding alkali metal salts of a -[(C1-7 alkoxy)-methyl]-b -hydroxyacrylonitriles.  a -[(C1-7 Alkoxy) - methyl] - b  - hydroxyacrylonitrile, are obtained in the form of their alkali metal salts by reacting acrylonitrile with a C1-7 alkyl formate in the presence of an alkali metal C1-7 alkoxide. 4-Halogeno-5-[(C1-7 alkoxy)-methyl]-2-propyl-pryrimidines are prepared by treating the corresponding 4-hydroxy compounds with phosphorus oxychloride.  4-Amino-5-[(C1-7 alkoxy) - methyl]-2-propyl-pryrimidines are prepared by treating the corresponding 4-halogeno compounds with concentrated aqueous ammonia under pressure.  Specifications 596,867 and 953,876 are referred to.ALSO:Coccidiosis may be controlled in poultry by means of a vitaminised laying mash or a drinking water to which is added between 0.0025 and 0.1% by weight of a 1-(2-propyl 4 aminopyrimidyl (5) methyl) 2 methyl pyridinium halide or halide hydrohalide of the formula <FORM:0953875/A5-A6/1> wherein X and Y are identical or different halogen atoms, e.g. chlorine or bromine.  Further pharmaceutical compounds such as choline chloride and sulphonamides, in particular sulphaquinoxaline, may also be present.  Vitamins specified are A, B12, D, methionine, niacin, calcium pantothenate and riboflavin.
Patent GB-1292944-A (GB)
Title: Freewheel hub
IPC: F16D41/36
Filed: 1971-05-20
Abstract: 1292944 Cycles FICHTEL & SACHS AG 20 May 1971 [22 May 1970] 16144/71 Heading B7E [Also in Division F2] A child's cycle comprises handle bars 31 pivoted at 32 about an axis transverse to the steering axis 37 and connected by a cable 33 to a free wheel hub 30 on the front steerable wheel 28. By rocking the handle bars up and down the cable 33 is reciprocated and drives the wheel 28 through the free wheel hub 30.
Patent GB-886815-A (GB)
Title: Improvements in or relating to apparatus for automatically and successively moving containers to and from a filling or emptying station
IPC: B65B43/54
Filed: 1959-05-12
Abstract: 886,815. Endless conveyers. U.D. ENGINEERING CO. Ltd., and ARBER, R. S. P. April 27, 1960 [May 12, 1959], No. 16182/59. Class 78 (1). [Also in Group XVII] In a crating or de-crating machine in which crates 11 are fed in pairs by means of a conveyer 10, on to a platform which is raised to a position in which the crates are filled or emptied and then lowered to replace the crates on the conveyer, the leading crate, on approaching the platform, engages a dog 31, which is pivotally mounted on a carriage 27 running on a rail 20. the carriage, as it is pushed along the rail, actuating valves controlling the cycle of operations. As the carriage is pushed along the rail by the crate. it first engages an arm 39 on a valve 34 which is actuated thereby to raise stops 12 into the path of oncoming crates. It then actuates similarly a valve 35, to raise stops 14 and stops 13, 15 between the two crates, and a valve 36 to actuate ram-operated clamping- members 16. which clamp the crates to the platform, to raise the platform to the crating or de-crating position and to extend a ram 23, 24 to raise the rail 20 about a pivot 18, so that, while the platform is raised, the carriage will run back to its initial position where it engages a valve 33 to retract ram 23, 24. As the rail 20 is raised about its pivot 18, the dog 31 engages a cam track 38 which pivots the dog to a substantially vertical position, the dog being returned to its crate-engaging position by means of a further cam track 37 as the carriage approaches its initial position. When the crating or de-crating operation is completed, a valve is operated to lower the platform, and the stops 13 and 14, and as the platform is lowered it actuates a valve to release the crate clamps 16, to lower stops 12, 15, the two crates being moved away by means of the conveyer and the cycle re-commencing. Specification 734,413 is referred to.
Patent GB-559638-A (GB)
Title: Improvements in electric protective arrangements of the reactance type
IPC: H02H3/40
Filed: 1942-11-16
Abstract: 559,638. Protective cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd., MATHEWS, P., and DYSON, J. Nov. 16, 1942, No. 16195. Addition to 549,257 [Class 38 (v)] The operating voltage of the reactanceprotective arrangement of the parent Specification, which voltage is dependent on the rate-ofchange of circuit-current and produced only at current-zero, is derived, in the present invention, either from a combination of an airgaptype current transformer energised by circuitcurrent and a saturable reactor having a rectangular magnetization curve connected to the current-transformer secondary, Fig. 2 (not shown), or alternatively, and preferably, the reactor C has the airgap and the current transformer G has the rectangular magnetization curve, the core of the latter (or of the reactor) being of "Mumetal" (Registered Trade Mark). The voltage across the reactor C, rectified at E2, and the restraining voltage, transformed at T and rectified at E<SP>1</SP>, are fed, in opposition, to resistors r1, r2 the voltages across which balance when the fault is at the end of the protected zone. The resistances supply a polarized relay S which only passes negative current corresponding to a preponderance of operating effect. The underlying theory is given in the Specification.
Patent GB-291618-A (GB)
Title: Improvements in or relating to the storage of liquids
IPC: B65D88/36
Filed: 1927-06-18
Abstract: 291,618. Cookson, K. June 18, 1927. Reservoirs. - Evaporation of stored liquid is prevented by covering the surface with floating blocks shaped so as to fit snugly together and of relatively small depth. The blocks may comprise frames 13, Fig. 2, and thin slats 14, a framework 15, Fig. 4, covered with waterproof material 16 and provided with strips 17, or may be formed of pieces of pumice stone 18, Fig. 5, united by aerated or frothed cement 19 and coated at 20 with waterproof material such as bitumen.
Patent GB-999378-A (GB)
Title: Improvements in or relating to electro-acoustic transducers
IPC: H04R1/22
Filed: 1963-04-25
Abstract: 999,378. Receivers. SIEMENS & HALSKE A.G. April 2 5 , 1 963  [April 2 7 , 1 962 ], No. 16277/63. Heading H4J. In an electro-acoustic transducer comprising a cylindrical housing divided into three resonance chambers by the diaphragm and a transverse partition, a cylindrical wall joins the diaphragm and the partition to form an annular fourth resonance chamber which is acoustically coupled to either or both of the chambers bounded by the housing and the disphragm or partition. As shown, Fig. 1, a receiver comprises a casing G containing a diaphragm M, a transverse partition Tl, and a cylindrical partition T2 which divides casing G into four chambers Cl, C2, C4 and C5. An earpiece HA is mounted on casing G and is shown in contact with an " ear volume " C3. Chambers C1 and C2 are acoustically coupled by impedance Rl, L1, and chambers C3, C4 are coupled by R3, L3, while chamber C5 is coupled to chamber C4 by R6, L6 which is formed by an opening round the peripheral edge of diaphragm M. As shown, Fig. 3, a telephone receiver comprises a ring-shaped support A for a ring- armature RA arranged so that chamber C5 is formed between the magnet D and support A, perforations or notches being cut in the edge of the diaphragm to form the impedance R6, L6. In other embodiments the annular chamber C5 is acoustically coupled to chamber Cl instead of, or as well as, chamber C4. The equivalent electrical circuits of the resonance chambers are given and the effects of the chambers on the frequency response of the transducer are discussed.
Patent GB-1079635-A (GB)
Title: Centrifugal pumping systems
IPC: F04D29/22
Filed: 1965-04-15
Abstract: 1,079,635. Centrifugal pumps. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. April 15, 1965 [April 17, 1964], No. 16321/65. Heading F1C. Cavitation in a centrifugal pump is prevented by providing a chamber 23 into which the impeller blades extend to impart a rotary motion to the incoming liquid, thereby increasing the inlet pressure centrifugally. To prevent the liquid being forced upstream by the increased pressure, the central inlet opening 26 of the chamber 23 is made smaller in area than the outlet end of the chamber, which in turn is made approximately equal in diameter to the inlet opening of the pump casing 34. As shown, the restricted inlet opening 26 is formed by the downstream end of an inlet pipe 25. Instead of being integral with the pump casing 34, the chamber 23 may be connected to it by welding or a flanged connection. The pump receives liquid from a reservoir 29. Air or other gas separating from the liquid to form a central core in the chamber 23 is discharged to the top of the reservoir 29 through a pipe 27. A valve 33 in the pump discharge line is controlled by a controller 32 in accordance with the pressure at the inlet opening 26 or the difference in pressure between the wall of the chamber 23 and the central region of the chamber, as sensed by a gauge 31. This ensures that the inlet pressure is always sufficient to avoid cavitation despite reductions or even cessation of the liquid supply. In the latter case, the valve 33 is fully closed. The inlet pipe may be integral with the chamber 23 or welded to it, merging into the chamber, which may be conical instead of cylindrical. Alternatively, the inlet pipe and the chamber may be afforded by a single cylinder having an annular constriction which affords the restricted inlet opening.
Patent GB-420977-A (GB)
Title: Improvements in or relating to the deoxygenation of oxygen-containing organic compounds
Filed: 1933-06-07
Abstract: The deoxygenation of a substantially pure phenolic compound or mixtures thereof to hydrocarbons is carried out by mixing the compounds with a hydrogen-containing or hydrocarbon gas and subjecting the mixture in the vapour phase to the action of a silent electric discharge.  The phenolic compound may be obtained by the distillation of coal, peat, lignite, carbonaceous shale &c., and fractionation of the distillate to remove nonphenolic compounds.  The silent electrical discharge may be used at a voltage from 50,000 to 200,000 volts and a frequency of 10,000 to 70,000 cycles.  Preferably a voltage of 100,000 and a frequency of 35,000 cycles is used.  The process may be carried out at the pressure at which the distillate leaves the still, or at substantially atmospheric pressure, and the temperature should be maintained sufficiently high to prevent condensation of the materials at the pressure employed, e.g. about 400 DEG  C.  The Provisional Specification describes the treatment of crude distillates obtained from coal or like carbonaceous mixtures and oxygen-containing organic compounds or mixtures containing such compounds.  Specifications 363,360, 400,234, and 400,604 are referred to.
Patent GB-891942-A (GB)
Title: Improvements in or relating to cathode ray image reproducing tubes
IPC: H01J29/52
Filed: 1958-05-22
Abstract: 891,942. Cathode-ray tubes. TELEFUNKEN G.m.b.H. May 22, 1958 [May 25, 1957], No. 16422/58. Class 39(1) An electron gun for a cathode-ray image reproducing tube has a control grid 4, Fig. 1 (a), in the form of parallel conductors 6, Fig. 2. The conductors are parallel to the direction of the line scan and the electron beam is focused to a cross-over between the control grid and the screen an image of the cross-over being focused on the screen. In scanning a television raster the dispersion of the electrons in a direction transversely to the grid conductors, the line structure of the raster is rendered indistinct.
Patent GB-145450-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/46
Filed: 1920-06-18
Abstract: 145,450. Zorzi, C. Aug. 28, 1918, [Convention date]. Cable and wire terminals. - Current is introduced to a sparking-plug by a forked terminal, Fig. 2, the pointed part of which is secured in a tube M, slotted so that portions of it may be closed on the conductor.
Patent GB-1013979-A (GB)
Title: Device for reinforcement and tuck stitch formation in hosiery on a circular knitting machine
IPC: D04B9/46
Filed: 1964-04-22
Abstract: 1,013,979. Knitting-machines. ELITEX SDRUZENI PODNIKU TEXTILINHO STROJIRENSTVI. April 22,1964 [April 22,1963 ], No. 16615/64. Tuck stitch fabrics are formed in a circular knitting machine by radial deflection of the needles of "T" shaped slides 19. The needle cylinder is radially recessed to allow the needles to bend against the upper part of the cylinder or a vergelist if the recess is continued up to the top of the cylinder. "T" shaped slides 19 with frangible butts 20 are selectively operated by a pattern drum. The pattern drum is driven by a pawl and ratchet mechanism from the main drive of the machine and the detent of the ratchet device may be bluffed out of operation by a plate 39 Fig. 6 (not shown) which is controlled by a Bowden cable from bowls on a pattern chain. The reinforcing thread 13 fed in the zone of operation of the slides 19 and the main yarn 10 fed after this zone. The cylinder height may be adjusted for quality control.
Patent GB-482088-A (GB)
Title: Improvements in reciprocating pumps for liquids
IPC: F04B19/02
Filed: 1937-06-15
Abstract: 482,088. Cylinders. SCHOENE, K. June 15, 1937, No. 16621. Convention date, June 15, 1936. [Class 122 (i)] [Also in Group XXVIII] Relates to pumps as described in Specification 434,016, [Group XXVIII]. The pump barrel 19, pressed into a casing 1, is formed with auxiliary inlet passages 12 controlled by an annular lift valve 11. A head 18, secured to the barrel, comprises rings 9, 17, connected by webs 4, and forming inlet ports 8 and discharge ports 14. The ports are controlled by sleeve valves 7, 13.