baber/WOPTO huggingface dataset:
Patent GB-912531-A (GB)
Title: Improvements in high voltage electrical apparatus
IPC: H01B3/46
Filed: 1960-08-18
Abstract: An insulation medium for surrounding metal conductors in a high voltage electrical apparatus comprises (1) a liquid organopolysiloxane and a minor amount of (2) (a) phenylsubstituted polysiloxanes, (b) see.-alkyl-substituted aromatic hydrocarbons having a boiling point, at atmospheric pressure, of not less than 200 DEG C., or (c) ring-substituted aromatic hydrocarbons of the formula <FORM:0912531/IV(a)/1> wherein A is an aromatic nucleus, R1, R2 and R3 are alkyl, cycloalkyl or aryl radicals and n is an integer from 1 to 6, as antigassing agents.  Siloxane (1) disclosed is a liquid dimethylpolysiloxane.  Among the antigassing agents disclosed are phenylmethylsiloxanes, di-, tri- and tetra-isopropylbenzenes, phenylcyclohexane, b -(cyclohexyl) naphthalene and t-butylbenzenes, -naphthalenes and -anthracenes.  Examples are given.
Patent GB-762259-A (GB)
Title: Articulated transporter carriages for use in mining and the like
IPC: B61D11/00
Filed: 1954-10-05
Abstract: 762,259. Articulated transporter carriages for use in mines; endless conveyers. HEIDEMANN, W. Oct. 5, 1954 [Oct. 7, 1953], No. 28686/54. Addition to 730,300. Classes 78 (1) and 78 (4). The conveyer 5, Figs. 3 and 4, forming the bottom of the transporter of the parent Specification can be slackened to reduce wear as the transporter articulates during travel. Further the inclined discharge section described in the parent Specification may be replaced by a separate inclined conveyer 7, Fig. 3. In the form illustrated the return roller 17, Fig. 4, at the loading end of the conveyer 5 is carried by brackets 21 mounted by rollers 18, 19 to slide in guides 20 and connected by a rope 22 to a single acting hydraulic ram 24. When a manually operated valve 31 is closed a gear pump 25 raises the pressure in the ram 24 to a level limited by a blow-off valve 30. The gear pump 25 may be driven, independently of the conveyer 5, from the same driving motor as the conveyer and the hydraulic circuit of the ram 24 may be interconnected with the controls for the conveyer 5 so that the latter cannot be driven while it is slack. Where the locomotive hauling the transporter is driven by compressed air the ram 24 may be pneumatic. The discharge conveyer 7, Fig. 3, is driven through a change-speed gear box 10 and a chain 9 which also drives the conveyer 5, the conveyer 7 being driven at a considerably higher speed than the conveyer 5. The upper end of the conveyer 7 may be moved both vertically and laterally. Where the discharge conveyer 7 is omitted so that the conveyer 5 delivers directly through the open end of the last carriage forming the transporter the tensioned roller may be at the discharge end of the conveyer. In one such construction, Fig. 9 (not shown), the ends of the tensioning roller are connected through chains which pass over sprockets arranged to ensure equal movements of the two chains to a yoke slid longitudinally of the transporter by a fluid pressure ram. A shield moving with the tensioning roller prevents material falling on to the track when the conveyer is slackened. In a further construction, Figs. 10 to 11a (not shown), the conveyer 5 is tensioned by a telescoping carriage inserted in the train and extended and retracted to tighten and slacken the conveyer by a doubleacting ram. The conveyer 5 may be an endless belt but preferably comprises a pair of chains joined by scrapers 33, Fig. 5, and running in trough sections 32 which are detachable from the carriages 4 and which may have flanges covering the upper runs of the chains. Rubber buffers 37 mount both the single axels 35 of the carriages and two-axle bogies supporting the loading and discharge sections. The conveyer 7 may beof similar construction to the conveyer 5 and may be tensioned by a spring-biased roller which may be slacked off. Alternatively it may comprise an endless belt.
Patent GB-977568-A (GB)
Title: Improvements in and relating to thermal storage devices
IPC: F24H7/04
Filed: 1962-07-26
Abstract: 977,568. Electric thermal-storage air heaters or steam generators; furnaces. L. G. HILL. July 23, 1963 [July 26, 1962], No. 28748/62. Headings F4A, F4B and F4U. A thermal storage device comprises a mass 5 of metallic, approximately spherical particles enclosed within a thermally insulating casing 3, heated by electrical elements 7 and containing ducts 6 for the passage of fluids to be heated. The elements 7 may be nickel-chrome bars embedded in and insulated from the mass, supplied from a current transformer. Alternatively, large electrodes may pass a current directly through the mass. The device may be situated below ground and channels may be provided in the concrete substructure 4 to provide access to thermostats 8 and the elements 7 both of which may be withdrawn from the mass. The device may operate at temperatures higher than 600 C., and may have a capacity of at least 1 megathu. It may be cyclically controlled so as to be operable as a load factor improvement device on the electrical supply mains. An installation is described in which the heated air from the device is mixed with cooler air to give an output of temperature-controlled air. In another installation, air flows over a heat exchanger heated by fluid from the heat storage device. The device may be used for steam production at a controlled rate by direction of a fine, high-pressure jet of water along the centre of the ducts 6. The hot gases from the device may be passed through thin-walled tubes heating a furnace. Alternatively, the gases may pass from orifices into the furnace interior and through flues in the roof back to the heating device. The device may also be used to super-heat steam from a conventional boiler.
Patent GB-890290-A (GB)
Title: Improvements in or relating to tube connectors
Inventor: BARRETT CECIL DENNIS
IPC: F16B7/04
Filed: 1959-08-24
Abstract: 890,290. Balusters. GRILL FLOORS Ltd. Aug. 16, 1960 [Aug. 24, 1959], No. 28844/59. Class 45. [Also in Groups XXV and XXVIII] In a tube connector, the tube ends 4, Fig. 3, are gripped by the lateral displacement of an internal member 8 within an external sleeve member 2. A screw 12 engaging with a tapped hole 16 abuts the internal surface of the external sleeve member to move the internal member laterally. As shown the external sleeve member is the top of a handrail stanchion 9, Fig. 4, having a second connector 2 midway along it. In Fig. 6 the external sleeve member is an elbow.
Patent GB-749867-A (GB)
Title: Improvements in and relating to spherical bearing members and their manufacture
IPC: B23C3/34
Filed: 1953-10-19
Abstract: 749,867. Spherical journal bearings. THOMPSON PRODUCTS, Inc. Oct. 19, 1953 [Jan. 22, 1953], No. 28855/53. Class 12 (1). [Also in Group XXII] A journal bearing, e.g. for vehicle steering mechanism, has a substantially spherical surface 22 formed by rotating a generatrix AB, struck from centre 24, about an axis CD. Spiral lubricating grooves 27, e.g. three, are formed in the surface.
Patent GB-373911-A (GB)
Title: Improvements relating to the construction of kilns for use in pottery manufacture
IPC: F27D1/04
Filed: 1931-10-17
Abstract: 373,911. Pottery &c. ovens. WILLIAMS, J. F. and WILLIAMS, J. J., 61, Spring Road, Normacott, Longton, Stoke-on-Trent. Oct. 17, 1931, No. 28894. [Class 51 (ii).] An externally heated oven or kiln for use in pottery manufacture is made wider, and preferably also higher, at the middle than at the ends, as shown in side elevation and plan in Figs. 1 and 2 respectively. The side walls a are built from parallel-sided non-rectangular quarries a<2>, and bottom and top courses of tapering quarries a<1>, a3, while the roof quarries are tapering for the springing-course c substantially rectangular for the top courses e<1>, and non-rectangular for the remaining courses e. The sides of the quarries a<2> are recessed to take tapered pegs d, which may project through the walls and connect with the flue midfeathers.
Patent GB-1046729-A (GB)
Title: Sintering apparatus with automatic control
Inventor: SAWADA YASUHIRO
IPC: C22B1/20
Filed: 1963-07-22
Abstract: 1, 046, 729. Automatic control systems. YAWATA IRON & STEEL CO. Ltd. July 22, 1963, No. 28928/63. Heading G3R. Two stage correction system, uses (a) a series of rectangular control pulses which will rapidly reduce the error if the system is operating under substantially correct conditions but has drifted outside limits, and (b) a stepped correction signal for long term deviations, i.e. if the pulses persist for more than a certain time and are unable to correct the error. As described with reference to a Dwight- Lloyd sintering process, two sets of controlling variables are monitored, and two stage correction is applied by each. Firstly the thickness of the charge on the conveyer is detected at 5, and correction effected by altering the speed of the drive motor 12. Secondly the temperature and pressure of the waste gases is monitored at 6 as they are drawn off, and the combined signal is used to apply two-stage corrections to the main drive motor 12, the feed conveyer drive motor 11, and the cooler 13. Control is effected by relay circuits and timers, Figs. 3, 4, 5 (not shown) with motor driven rheostats Figs. 6, 7 (not shown) having mid position contacts 42 and end limit contacts 51, 54 actuated by the wiper arm. Thus upper and lower limits of the error signals actuate switches 29 or 30 to cause rheostat motor 113 to drive the wiper arm round to its limit in the appropriate direction to cause an increase y 1  Fig. 9 in the correcting signal; timer 60 determines the time t 4  for which the pulse is applied, after which the wiper arm is run back to mid-position, and timer 50 determines the off time t 5  before another correcting pulse is applied. Timers 86, 92 Fig. 4 (not shown) similarly control a rheostat motor 122 to determine the amplitude of the step and the time between steps.
Patent GB-1177037-A (GB)
Title: Hydrocarbon Separation Process
IPC: C10G25/03
Filed: 1968-06-18
Abstract: 1,177,037. Hydrogen separation. TEXACO DEVELOPMENT CORP. 18 June, 1968 [3 July, 1967], No. 28974/68. Heading C5E. A hydrocarbon separation process comprises (1) passing a mixture comprising a hydrocarbon feedstock containing straight chain hydrocarbons and non-straight chain hydrocarbons into contact with a bed of crystalline aluminosilicates effecting a separation of said mixture into a first fraction consisting essentially of straight chain hydrocarbons and containing a small quantity of non-straight chain hydrocarbons and a second fraction consisting essentially of non-straight chain hydrocarbons, (2) separating said first fraction into a third fraction consisting essentially of straight chain hydrocarbons and containing a major portion of the non-straight chain hydrocarbons of said first fraction, said non-straight chain hydrocarbons having substantially the same boiling point range as the straight chain hydrocarbons in said third fraction, and a fourth fraction consisting essentially of straight chain hydrocarbons and containing a minor portion of the non-straight chain hydrocarbons of said first fraction, said non-straight chain hydrocarbons having substantially the same boiling point range as the straight chain hydrocarbons in the fourth fraction, said third fraction and said fourth fraction having different boiling point ranges, and (3) passing a portion of said third fraction into contact with said bed of aluminosilieates as a portion of said feedstock. The separation of the first fraction into third and fourth fractions may be by fractional distillation.
Patent GB-209520-A (GB)
Title: Improved internal expanding brake
IPC: F16D51/12
Filed: 1922-10-25
Abstract: 209,520. Gill, H. Oct. 25, 1922. Blocks actin on drums.-In a rake of the kind comprising brake shoes @lapted to be moved radially into enggement with the interior of a drum by a cam coaxial with the drum, the shoes 10 are carried eah by a rod 2 guided 1 a spider 1 secured @ a fixed back plate, the rods having also shoes 8 which ride on cams' formed on a boss provided with gear teeth 6 enaged by a pinion 5 whereby the cam member can be turned to apply the shoes to the drum. Springs 9 urge the shoes 8 into contact with the cams.
Patent GB-503104-A (GB)
Title: Improvements in vehicles for the transport of animals
IPC: B60P3/04
Filed: 1937-10-23
Abstract: 503,104. Animal - carrying vehicles; doors. JENNINGS & SON, Ltd., J. H., and JENNINGS, J. H. Oct. 23, 1937, No. 29017. [Class 108 (i)] Relates to animalcarrying vehicles of the kind in which an end or part of a side is adapted to fold down to form a loading ramp, and the loading gap is closable by one or more gates formed of jointed horizontal and vertical bars. According to the invention, the or each gate i, j is hinged at its lower outer corner by means of a ball-andsocket joint n, and near its upper edge by a demountable hinge m, so that, after the hinge m is released the or each gate may be swung outwardly and downwardly, as shown in Fig. 1, to form a guard for the edge of the ramp g, the bars which were origirially vertical now being horizontal and vice versa. In the construction shown two gates i, j j are provided and are secured in normal position by a fastening k, and in their position alongside the ramp by staples or peg fastenings o.
Patent GB-175344-A (GB)
Title: Improvements in apparatus for washing and otherwise treating fibres, yarns, fabrics and the like
IPC: D06B5/00
Filed: 1920-10-13
Abstract: 175,344. Barter, F. L. Oct. 13, 1920. Drums, stationary.-In apparatus for cleansing, bleaching, degreasing, dyeing and otherwise treating vegetable, animal, and silk fbre, yarns, fabrics, &c., the liquid is agitated by two or more propellers 5, 5a each located in an openwork cage 19, 19<a> and adapted to drive the liquor in opposite directions. The material to be treated is placed in a perforated tank 1 arranged within a jacket 2. The propellers are driven in opposite directions through two-speed chain-and-sprocket gearing. When it is required to dry the material, the liquor is drawn off and the propellers are rotated at the higher speed. The tank 1 may be omitted.
Patent GB-290408-A (GB)
Abstract: 290,408. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 24, 1927. Anthraquinonethioxanthones.-Vat dyes of the anthraquinone series are obtained by treating a bis-(2<1>-carboxy-1<1>-anthraquinonyl)-2 : 6- or -2 : 7- dimercaptoanthraquinone with a dehydrating agent, whereby ring closure is effected. The dyes give strong yellow shades from the warm hydrosulphite vat and can be used in conjunction with the majority of the Indanthrene dyes. In examples, bis - (2<1> - carboxy-1<1>-anthraquinonyl)- 2 : 7-dimercaptoanthraquinone is treated with sulphuric acid and with benzotrichloride respectively; the product is a yellow powder giving a greyish-blue vat. A similar dye is obtained from the bis-(2<1> - carboxy-1<1>-anthraquinonyl)-2 : 6-dimercaptoanthraquinone. Specification 15205/11 is referred to. Bis - (2<1>-carboxy-1<1>-anthraquinonyl)-2: 6- and 2 : 7-dimercaptoanthraquinones are obtained by condensing a 1-chlor-(or 1-diazo)-anthraquinone- 2-carboxylic acid (2 mols.) with a 2 : 6- or 2 : 7- dimercaptoanthraquinone (1 mol.), or by condensing a 1-mercaptoanthraquinone-2-carboxylic acid (2 mols.) with a 2 : 6- or 2 : 7-tetrazoant:hraquinone sulphate (1 mol.). In an example, 1- diazoanthraquinone-2-carboxylic acid, obtained from 1: 2-anthraquinone-isoxazole (Specification 160,433) by the process described in Example 1 of Specification 262,119, is condensed with 2 : 7- dimercaptoanthraquinone. 2: 6- and 2 : 7-Dimercaptoanthraquinones are obtained by boiling 2 : 6- or 2 : 7-dichloranthraquinones with alcoholic sodium sulphide or polysulphide.
Patent GB-629212-A (GB)
Title: Resiliently supported bolsters of bogie carriages of railway and like vehicles
IPC: B61F5/08
Filed: 1947-10-31
Abstract: 629,212. Bolster mountings. METALASTIK, Ltd., and HIRST, A. J. Oct. 31, 1947, No. 29083. [Class 103 (vi)] A bolster 10 is resiliently mounted upon a bogie frame by providing at each end on its lower side oppositely inclined bearing surfaces 9 between which and the corresponding faces of an inverted V-shape block 6 integral with the transom 5 of the bogie solbar are interposed springs 8 which are preferably of the composite rubber type, as described in Specification 616,457. According to the construction of the bogie frame, the transom may be of unitary construction or replaced by oppositely inclined brackets welded to the solbars without any lateral bracing.
Patent GB-759342-A (GB)
Title: Process for the preparation of a solution from polyacrylonitrile or acrylonitrile co-polymers for spinning purposes
IPC: D01F6/18
Filed: 1954-10-08
Abstract: Polyacrylonitrile or copolymers of acrylonitrile are dissolved by a process wherein a dispersion of the polymer and a solvent which boils at 100 DEG  C. or higher is introduced continuously into a solution of the polymer in the solvent in a vacuum vessel provided with differential heating means, and the solution is subjected to such a reduced pressure, e.g. 100 to 200 mm. Hg, and is heated to such a temperature, e.g. 90 DEG  to 110 DEG  C., that the solvent boils violently, and at the same time the solution which is formed is withdrawn at the same rate as the dispersion is introduced and, after passing through a filtering stage, is passed directly to a spinning stage.  Solvents specified are dimethyl formamide, dimethyl acetamide, glycollic acid nitrile and ethylene carbonate, and mixtures of solvents, such as dimethyl formamide and methylene glycol diacetate.
Patent GB-420743-A (GB)
Title: Improvements in the manufacture and production of dyestuffs
IPC: C09B11/28
Filed: 1933-05-29
Abstract: Dyes are prepared by reacting ammonia or primary or secondary amines with compounds of the general formula <FORM:0420743/IV/1> (wherein R1, R2, R3 and R4 stand for hydrogen, or alkyl, cycloalkyl, aryl or aralkyl radicles, X stands for an oxygen or sulphur atom and Y for an oxygen or sulphur atom or two chlorine atoms) with elimination of Y and formation of linkage between the carbon atom to which Y is attached and the nitrogen atom of the nitrogenous compound, which reaction is carried out in the presence of water if cyclic amines are used. Starting materials comprise aminated xanthones, xanthiones, thioxanthones, thioxanthiones and their keto chlorides which may be substituted in the amino groups by alkyl, aralkyl, aryl and cycloalkyl groups.  Suitable primary and secondary amines are methyl-, mono- or dipropyl-amines, ethanolamine, cyclohexylamine, aniline, naphthylamine or piperidine; instead of ammonia agents supplying this may be used, for example urea.  Condensing agents such as zinc chloride may be present, and reaction temperatures of 0--100 DEG  C. may be employed.  In examples: (1) 3.6-tetramethyldiaminoxanthone chloride (prepared from the xanthone or xanthione and phosphorus oxychloride or phosgene) is condensed with gaseous or aqueous ammonia; paper is dyed yellow. The corresponding dimethyldiphenyl-, dimethyldibenzyl-, dimethyldicyclohexyl-derivatives may be similarly treated; (2) 3.6 p - diethyldiamino - 2.7 - dimethylxanthone chloride (prepared similarly to (1) above) is condensed in water with cyclohexylamine (dyes greenish - yellow); 3.6 - tetramethyldiamino-, 3.6-diethyldimethyldiamino-xanthone chlorides or 3.6-diethyldiaminothioxanthone chloride may be similarly reacted to give dyes; (3) 3.6-tetramethyldiaminothioxanthione is heated with zinc chloride and ammonium chloride, or this starting material first reacted with phosphorus oxychloride or phosgene and the product with ammonia; it dyes paper yellow-orange; (4) 3.6 - tetramethyl - (or tetraethyl -) diamino - xanthone chloride is condensed with aniline in aqueous solution (dyes reddish-orange); (5) 3.6-tetramethyldiaminothioxanthone chloride is condensed in aqueous solution with cyclohexylamine (dyes reddish-yellow). Xanthones and xanthiones used as starting materials may be prepared according to British Specification 314,826, [Class 2 (iii)], while the corresponding thioxanthones and thioxanthiones are obtainable analogously from tetraalkyldiaminothioxanthenes (German Specification 65739).  British Specification 320,345, [Class 2 (iii)], also is referred to.
Patent GB-802951-A (GB)
Title: Improvements relating to inking mechanism for printing machines
IPC: B41F31/14
Filed: 1953-10-23
Abstract: 802,951. Printing machines. WAITE & SAVILLE, Ltd. and WHYTE. F. Oct. 25, 1954 [Oct. 23, 1954], No. 29278/53. Class 100(2) In inking mechanism wherein the ink from a fountain roller 3a is fed alternately into each of two sets of pre-distribution. rollers 10 which mill it before passing it forward to the first roller 13 of the normal ink train, the frequency of change-over from one set to the other relative to the impression frequency of the printing machine is variable. As shown in Fig. 3, the two pairs of rollers 10 are rocked about a shaft 14 by a lever 15 having a roller 16 engaging a cam (not shown) on a shaft 2; an oscillating ductor 12 is also controlled from the shaft 2 by a variable-dwell cam mechanism 1 similar to that described in Specification 415,124. The shaft is driven from the fountain roller shaft 3 (itself driven by bevel gearing 9), Fig. 2, by a twospeed gear operated by a selector 6 serving to couple one or the other of two gears 5d, 5f, to the shaft 2 by means of a spring pawl 7 engaging key ways 8b, 8a respectively in the gears, and so to vary the drive between the shafts 2, 3.
Patent GB-331446-A (GB)
Title: Improvements in and relating to metal vapour rectifiers
IPC: H01J13/32
Filed: 1929-09-27
Abstract: 331,446. Akt.-Ges. Brown, Boveri, et Cie. Oct. 5, 1928, [Convention date]. Metallic-vapour apparatus. -The circulatory cooling system of a mercury-vapour high-vacuum pump employed with a metallic-vapour rectifier is provided with a recooling arrangement which is separate from that of the cooling system of the rectifier; the high-vacuum pump may thus be maintained at a temperature lower than that of the rectifier. In one arrangement, Fig. 1 (not shown), the liquids in the two cooling systems are circulated by two pumps driven by a motor. In a modification, Fig. 2, liquid for the cooling system of the high-vacuum pump h is obtained from that of the rectifier g and is circulated through the cooler k<1> and an additional cooler k<2> by a pump p. Air is drawn by a fan v through the coolers and passes first through the cooler k<2>. A regulating valve i and an expansion chamber e may be provided. The cooling systems may be insulated.
Patent GB-889014-A (GB)
Title: Improvements relating to capacitance measuring circuits
IPC: G01R27/02
Filed: 1957-03-26
Abstract: 889,014. Bridge measurements. SHAW, J. L. March 13, 1958 [March 26, 1957], No. 29330/56. Class 37. A capacitance bridge comprises two triode sections with cathodes intercoupled by capacitance shunted resistors R5, R6 and balancing potentiometer R1 having its slider returned to earth, a capacitance shunted D.C. unbalance meter and variable calibration resistance R2 connected between the cathodes, and an inductance B interconnecting the anodes and centretapped to a choke capacitance coupled A.C. supply. The inductance is tuned by initially equal reference and variable capacitances C4, C5 and the anodes and grids are capacitance cross-coupled for squegging oscillation so that the unbalance meter indicates positive or negative variations of C5 with regard to C4. In a modification (Fig. 2, not shown), the anodes to grid cross connection is replaced by an inductance C interconnecting the grids and coupled to the anode inductance B.