baber/WOPTO huggingface dataset:
Patent GB-1124216-A (GB)
Title: Process for the production of acetylene
IPC: C07C1/30
Filed: 1967-05-12
Abstract: Acetylene is produced by dehydrohalogenating a dihalogenoethane and/or a vinyl halide by passing at 400-850 DEG  C. over a catalyst comprising one or more chlorides of Li, Be, Mg, Ca, Sr, Ba, Ce, Sb, Cu, Ag, Au, Zn, Cd, Hg, Ti, Cr, Mn, Fe, Co, Ni, Pd and Pt.  The chloride(s) may be deposited on a carrier such as pumice, silica gel, porcelain, glass filler or the corresponding metal or metal oxide. Starting materials exemplified are 1,2-dichloroethane, 1,1-dichloroethane, 1,2-dibromoethane, vinyl chloride and vinyl bromide.ALSO:Vinyl halides are produced as by-products in a process for the production of acetylene by the dehydrohalogenation of dihalogenoethanes at 400-850 DEG  C. over a catalyst comprising one or more chlorides of Li, Be, Mg, Ca, Sr, Ba, Ce, Sb, Cu, Ag, Au, Zn, Cd, Hg, Ti, Cr, Ma, Fe, Co, Ni, Pd and Pt.  The chloride(s) may be deposited on a carrier such as pumice, silicagel, porcelain, glass filter or the corresponding metal or metal oxide. Starting materials exemplified are 1,1-dichloroethane, 1,2-dichloroethane and 1,2-dibromoethane.
Patent GB-1352802-A (GB)
Title: Compositions comprising a plasticizer and a substituted acrylamide  polymer
IPC: C09J133/26
Filed: 1972-05-11
Abstract: 1352802 Acrylic hot melt adhesives LUBRIZOL CORP 11 May 1972 [21 May 1971] 22198/72 Heading C3P A water-activated hot melt adhesive composition comprises a non-cellulosic polyhydroxy compound as plasticizer and at least one homopolymer of an acrylamide derivative of the formula wherein R<SP>1</SP> is H or optionally substituted alkyl of up to 7 carbon atoms, R<SP>2</SP> is a divalent or trivalent optionally substituted hydrocarbon radical, M is H or one equivalent of a cation, and x is 1 or 2. Suitable plasticizers include glycerol, sorbitol and polyethylene glycol. The preferred homopolymers are those of 2-acrylamido - 2 - methylpropanesulphonic acid and its salts. The composition may optionally include fillers, e.g. clay or chalk; antioxidants, e.g. butylated hydroxyanisole, butylated hydroxy toluene or sodium benzoate; taokifiers, e.g. rosin or rosin derivatives, hydrocarbon resins or coumarone-indene resins; lubricants; waxes; pigments; dyes; or flavouring agents. The composition can be applied to paper and other surfaces.
Patent GB-1388333-A (GB)
Title: Process for dyeing cellulosic material
IPC: D06B21/00
Filed: 1973-05-10
Abstract: 1388333 Dyeing cellulosic materials OMNIUM DE PROSPECTIVE INDUSTRIELLE SA 10 May 1973 [18 May 1972] 22282/73 Heading D1B Cellulosic materials are treated with liquid ammonia without removal of residual ammonia before dyeing e.g. with vat dyes. Preferably the material is wrung out to a residual ammonia content of not more than 40% preferably 30% by weight before dyeing.
Patent GB-454047-A (GB)
Title: Improvements in or relating to electrolytic devices
IPC: H01G9/04
Filed: 1935-08-07
Abstract: 454,047. Electrolytic condensers. BRENNAN, J. B., Fairfield Manor, Fort Wayne, Indiana, U.S.A. Aug. 7, 1935, No. 22318. Convention date, Aug. 7, 1934. [Class 37] The unfilmed cathode 17 of an electrolytic condenser or the like having an electrolyte and an anode 12 provided with a dielectric film is roughened where in contact with the electrolyte to increase its effective area. The roughening may be done by etching or other means and the effective area of the cathode should be the same as that of the anode which is itself roughened. Specification 433,818 is referred to.
Patent GB-690549-A (GB)
Title: Vehicle disc brakes
IPC: F16D55/26
Filed: 1949-08-30
Abstract: 690,549. Disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. July 27, 1950 [Aug. 30, 1949], No. 22468/49. Class 103 (i). A disc brake, particularly for aircraft, comprises a disc 1, rotatable with and axially keyed to the wheel hub 4, which is adapted to be engaged by friction pads 14 carried by a pressure-plate 13 and a torque plate 5 extending across each side of the disc, a fluid-pressure piston and cylinder 8, 9 carried by the torque plate 5 acting to close the plates to apply the brake by means of a rod 11 extending axially adjacent the periphery of the disc 1. As shown in Fig. IV, the invention is adapted for use in a brake having radially disposed outer and inner brake discs 19 and 21. In this construction, the piston-rod 31 extends between the pairs of discs, the inner ones being axially keyed by dogs 22 on an inner part of the wheel hub. Although, as shown in Figs. I and IV, there are a pair of diametrically disposed fluid pressure actuators, there may, however, be three equi-spaced circumferentially. There may also be only one actuator. In this case, the diametrically opposite ends of the plates must be pivoted together by means such as that shown in Fig. VII, comprising a thrust-pin 39 secured to the torque plate 5 having an end engaging a thimble 40 carried by the pressure-plate 13. The invention is a development of that described in Specification 625,726.
Patent GB-361945-A (GB)
Title: Improvements in or relating to paper feeding appliances for typewriters
IPC: B41J13/10
Filed: 1930-07-26
Abstract: 361,945. Typewriters. GABRIEL, C. S. M., Melbourne House, Aldwych, London. July 26, 1930, No. 22581. [Class 100 (iv).] Sheet-feeding arrangements.-Sheets are fed to the platen in overlapping relation by means comprising a feed-roller arranged between the front and back edges of a stack of sheets. The sheets may be delivered from the platen to a horizontal tray arranged above the stack. In the apparatus shown in the Figure, sheets stacked on a table 1 are fed to the platen 18 in overlapping relation by means of feed-rollers 13, 28, and are discharged on to a tray 11 by means of feed-rollers 35. The table and tray are pivoted to brackets 4 on the carriage 118, the table being supported by a rail 6, and the tray having legs 50 resting on the table. The tray is lifted to afford access to the table. The table is provided with adjustable side-guides 43 for the sheets, adjustment being effected by means of screws 48. The legs 50 are adjustable to the front or rear and have slots 51 receiving a serrated plate 53 which rests on a stack of sheets. Alternatively the serrated plate may be mounted in the guides 43. To fan the sheets, the table or the rear part thereof may be curved. The shaft 8 of the feed-rollers 13 enters slotted guides 10 on the tray and is held down by springs 32, the guides being adjustable to the front or rear to vary the position of the feed-rollers and thereby adjust the overlap of the sheets. The feed-rollers consist of rubber and have non-radial teeth 14. The shaft 8 gears at one or both ends with a telescopic shaft 16 gearing with a shaft 21 which is geared to the platen shaft. The shafts 16 may be provided at the front with adjustable counterweights. Chain gearing may replace the shafts 16. The feedrollers 28 are mounted on the shaft 21 and cooperate with pressure rollers 29 to feed the sheets through a guide, consisting of spaced plates 25, 26, to the platen. The shaft 34 of the feed-rollers 35 is geared to the shaft 21, and the feed-rollers cooperate with pressure rollers 36 to feed the sheets through a guide, consisting of spaced plates 37, 38, to the tray.
Patent GB-1312983-A (GB)
Title: Brake mechanisms
IPC: B62L1/12
Filed: 1970-05-11
Abstract: 1312983 Caliper brake mechanism YOSHIGAI KIKAI KINZOKU CO Ltd 11 May 1970 [10 May 1969 8 Aug 1969] 22612/70 Heading B7E In a side-pull caliper brake mechanism for a bicycle, a major arch member 1 and a minor arch member 6 are pivoted about a bolt 11, the major arch member 1 having a coupling arm portion 5 on which is pivoted at 17 a lever 16, a portion 13 of which abuts an outer edge 6<SP>11</SP> of the minor arch member 6 causing brake shoe mounting parts 3 and 8 to move towards one another when the brake mechanism is operated. In a second embodiment (Fig. 4, not shown) the lever (16) is pivoted in a slot (18) in the coupling arm portion (5) to provide an adjusting means. In a third embodiment (Figs. 5-7, not shown) the major arch member (1) comprises two sections pivoted at (21), an adjustable abutment between the sections being provided by screw (24).
Patent GB-502568-A (GB)
Title: Improvements in supply systems for loads capable of regenerative operation
IPC: H02M7/00
Filed: 1937-08-18
Abstract: 502,568. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., ROGERS, S. E., and WHITELEY, A. L. Aug. 18, 1937, No. 22691. [Class 38 (ii)] In a system for supplying a load capable of regenerative action, in which the supply is obtained from a rectifier incapable of absorbing the regenerative power, means are provided for switching a resistance L1 across'the line 1, 2 through a discharge device I in response to an overvoltage on the line. The discharge device I is rendered conductive by means of an igniter electrode under the control of a valve T1 (two may be provided to ensure certainty of operation) the grid potential of which consists of a negative bias obtained through a rectifier R and a positive bias proportional to the line voltage so that when the line potential exceeds a given amount the valve T1 becomes conductive. Operation of the discharge device inserts the resistance L1 and energizes a relay 20Y which completes a circuit across the device I, and completes the circuit of a relay 19Y which inserts an auxiliary resistance L2 across the supply circuit. When reverse current, due to regenerative action, ceases a relay 20X operates through a relay 20Z the relay 20Y to disconnect the resistance L1 from the system. The relay 19Y, however, remains energized, maintaining the resistance L2 in circuit until forward current flows and causes a relay 19X to operate. A relay 20T is provided to maintain the resistance L2 connected to the supply while the cathodes of the discharges devices T1, T2 are heating. The reverse current detecting device 20 may be, for example, a contact-making ammeter. In a modification a number of resistances L1 controlled by a multi anode discharge device and connected in circuit either simultaneously or in sequence, may be used.
Patent GB-1460772-A (GB)
Title: Electrostatic precipitators
IPC: B03C3/00
Filed: 1974-05-21
Abstract: 1460772 Electrostatic preciptators ENVIRONMENTAL ELEMENTS CORP 21 May 1974 [22 May 1973] 22735/74 Heading B2J An electrostatic precipitator for cleaning an acid-laden gas comprises a shell 12 having a gas inlet 22 and a gas outlet 26; a plurality of substantially flat lead plates 14 forming collector electrodes; and acid-resistant wire discharge electrodes 16, e.g. of lead, titanium tantalum, stainless steel or nickel-base alloy. The collector electrodes include a reinforcing frame, e.g. of steel for the lead plates, the frame having a plurality of apertures into which the lead plate is indented, whereby the plate is adequately supported to resist the tendency to creep. The discharge electrodes 16 are maintained in tension by weights (64) Fig. 2 (not shown), or, as in Fig. 1, they may extend between upper and lower members 34, 36 of a support frame.
Patent GB-383248-A (GB)
Title: Heat insulating material
IPC: C04B30/00
Filed: 1932-08-13
Abstract: 383,248. Nonconducting coverings for heat. FRANCIS, E. L., 88, Chancery Lane, London.-(Gypsum Lime & Alabastine, Canada, Ltd. ; Paris, Ontario, Canada.) Aug. 13, 1932, No. 22757. [Class 64 (ii).] A heat insulating material comprises a mass of incoherent particles having insulating properties, such as ground gypsum wallboard, cork, mixed with micaceous flakes. A preferred mica is vermiculite, which is heated to cause its laminations partly to separate ; 40-50 per cent by weight of the latter may be used and in pieces of # to ¢ inch in length.
Patent GB-735977-A (GB)
Title: Improvements in or relating to hydraulic transmission
IPC: F16H3/72
Filed: 1953-08-18
Abstract: 735,977. Variable-speed gearing. CARLSON, R. E. Aug. 18, 1953, No. 22761/53. Class 80 (2). [Also in Group XXIX] A hydraulic transmission for coupling a driveshaft to a selected one of two gear trains driving a driven shaft comprises two sets of radially dis-. posed cylinders and pistons mounted to rotate with the drive shaft, the pistons of a set reciprocating when flow of liquid is permitted between the cylinders of that set, but being locked when flow of liquid is prohibited and thereby driving the output shaft through the corresponding gear train. If both sets of pistons are locked at the same time the end gears of the trains rotate solid with a gear-wheel on the driven shaft to give a 1: 1 drive. Carriers 15, 16 provided with radially disposed cylinders 17, 50 are fast on a drive shaft 10. The cylinders 17 are provided with ports 85 opening into a bore 86, pistons 18 being free to reciprocate when the ports are open. Each piston 18 is connected by a crank 19 to a ring 22 which can rotate relative to an eccentric surface 23 of a member 24 when the ports are open. On closing the ports the pistons are locked and member 24 is rotated. Member 24 is coupled to a gear train 36, 37, 39, gear wheel 39 meshing with a gear 40 fast on the driven shaft 11. Carrier 16 is provided with similar cylinder and piston devices and serves to drive a gear train 61, 62, 64, gear 64 meshing with the gear 40. A valve 93 is provided with lands for controlling the ports 85, 87, and is actuated by a lever 104 so that, in one position, the ports of both sets of cylinders are open, and the transmission is in neutral. On shifting the lever 104 the ports 87 of the set of cylinders 50 are closed, and the shaft 11 is driven by the gear train 61, 62, 64. A further shift of the lever opens ports 87 and closes ports 85 and shaft 11 is driven by the other gear train. A further shift of the lever closes both sets of ports, and gears 39, 64 rotate solid with gear 40. Gears 39, 64 are mounted on a carrier 70 which is rotatably mounted on the shaft 11 and provided with an over-running clutch securing it to a fixed frame member 76. At least one of the pistons in each set is provided with a flap valve permitting oil in a space 90 to enter the cylinder circuit to make up any oil which may have leaked from that circuit. A simple form of automatic governor control or torque responsive mechanism may take the place of the lever 104.
Patent GB-222501-A (GB)
Title: Improvements in process for the coating of metals upon cement surfaces
IPC: C04B41/69
Filed: 1924-09-26
Abstract: 222,501. Soc. Lap, (Assignees of Seaillas, (nÚe CalogÚropoulos), S.). Sept. 29, 1923, [Convention date]. Processes.-Surfaces of aluminous cement are coated with metals by disposing the metal upon, and temporarily securing it to the walls of a mould, running in the cement and consolidating by compression, tamping, shaking or centrifugal action and allowing to set. The metal may be in the form of a thin sheet of gold, silver, copper, &c. temporarily attached to the wall of the mould by a light sprinkling of cement or a mixture of cement and sand. In a modification, the metal is applied to the mould in powdered form, mixed with water or volatile liquid or a vehicle which does not affect the setting of the cement. Specifications 17862/15 and 146,288, [both in Class 87 (i), Bricks &c.], are referred to.
Patent GB-311312-A (GB)
Title: Improvements in mechanical fuel feeding devices for articulated locomotives
IPC: F23K3/04
Filed: 1928-08-08
Abstract: 311.312. Krupp Akt.-Ges., F. May 9, 1928, [Convention date]. Fuel, feeding. - A mechanical fuel-feeding device for articulated locomotives comprises fuel conduits a<2>, F mounted on the tender and boiler and connected to an intermediate conduit D at one end by a ball-and-socket joint d<1> and at the other by a swivelling and sliding joint M. Fuel is fed through the conduits by screw conveyers H, R driven from a shaft M through gearing h<1>, k<1> and telescopic shaft N and gearing p<1>. r<1>. The conveyer a<1> in the tender is driven from the same source of power as the shaft M.
Patent GB-650147-A (GB)
Title: Improvements in means for removably retaining together two members mounted one within the other for relative rotation
IPC: B25B1/10
Filed: 1948-08-31
Abstract: 650,147. Vices. LEWDEN METAL PRODUCTS, Ltd., and DENFIELD, S. Aug. 31, 1948, No. 22927. [Class 61(ii)] [Also in Group XXIV] In a vice, the spindle carrying the screw 8 is detachably and rotatably connected to the movable jaw 4 by providing an inwardly projecting lug 11 in the bore 7 and a longitudinal groove 13 opening at one end into a circumferential groove 14 on the spindle. The spindle is inserted into the bore 7 with the lug 11 in register with the longitudinal groove 13 and the parts slid relatively to one another until the lug enters the circumferential groove 14 whence the spindle can be freely rotated. To assemble the vice, the guide rod 5 on the jaw 4 is engaged in the hole 6 in the frame 1 which carries the fixed jaw 2 and the screw 8 inserted in the threaded bearing 9 in the frame.
Patent GB-1503712-A (GB)
Title: Synchro mesh device for speed-changing gearing or transmissions
IPC: F16D23/06
Filed: 1975-05-23
Abstract: 1503712 Positive clutches J A DE RUYTER and J C CAVENG 23 May 1975 [28 May 1974 13 Jan 1975] 22963/75 Heading F2C A split-ring synchronized positive clutch for a vehicle change speed gear comprises a split ring 12 and a wedging member 4 which wedges between the ends of the split in the ring 12 to prevent contraction of the latter until synchronism is obtained. Initial engagement of a clutch sleeve 15 with the split-ring 12 rotates the latter in the direction P. An end of the ring 12 engages a projection 5 of the wedge member 4 and thereafter inclined surfaces 2, 11 on the wedge member 4 and a ring 3 fast with a driven clutch element interact and force the wedge member 4 radially outward to engage an inclined surface 8 thereon with an inclined surface 7 on the ring 12. The ends of the ring 12 are thus held apart by the wedge 4 until synchronism occurs whereupon radially inward movement of the wedge 4 permits the ring 12 to contract and the clutch sleeve 15 to pass over the ring 12 into positive engagement with the driven clutch element. As shown the wedge 4 has two radially inward projections 11<SP>1</SP> which engage slots 14 in the ring 3. In Fig. 1 (not shown) a solid wedge element engages an elongated recess in the ring 3. In Fig. 5 (not shown) the inner surface of the wedge has a part cylindrical portion which engages in a recess of the ring 3.
Patent GB-180948-A (GB)
Title: Improvements in locks
IPC: E05B9/08
Filed: 1921-08-30
Abstract: 180,948. Shields, T., (Wycherley, A. J.). Aug. 30, 1921. No Patent granted (Sealing fee not paid). Locks, revolving- barrel; preventing destruction of.-To resist wrenching round of the casing of a revolving-barrel lock and break off of the connection between the barrel and the latch, the casing engages a non-rotary bush applied to the inside of the door. The bush a may be of substantially cylindrical form fitting into a corresponding hole in the inner face of the door, with ribs a<1> to prevent rotation. As shown, it has two bars b projecting towards the outer face of the door to embrace the fin c<1> of the barrel casing c. Alternately, the interengagement may be made by the screws passing through the casing lugs c2 taking into the bush a, or the casing c may be extended rearwardly to engage in a corresponding recess in the adjacent part of the bush a. Reference has been directed by the Comptroller to Specification 173,743.
Patent GB-1285134-A (GB)
Title: Improvements in or relating to explosive cartridges
IPC: C06B45/12
Filed: 1970-05-12
Abstract: 1285134 Explosive compositions FRANCE ARMED FORCES MINISTER OF and SOC ANON D'EXPLOSIFS INDUSTRIELS LA CELTITE 12 May 1970 [12 May 1969] 23020/70 Heading C1D [Also in Division F3] A firedamp-proof explosive composition for use in an explosive cartridge (see Division F3) comprises ammonium nitrate, a sensitizer which may be nitroglycerine, nitroglycerine-nitroglycol, TNT, or PETN-TNT, and a cooling agent which may be sodium chloride or bicarbonate, the amounts of sensitizer and cooling agent being within specified areas of the graphs of Figs. 1 and 2 (not shown). In examples, the compositions also contain cork dust or sawdust.
Patent GB-646191-A (GB)
Title: Electrically-heated knife
IPC: B44D3/16
Filed: 1948-09-02
Abstract: 646,191. Knives. ROUND, L. A. Sept. 2, 1948, No. 23122. [Class 30] [Also in Group XI] An electrically heated knife has a flat hollow blade 1 and tang 4 in both of which is a cavity 3 containing an electric resistance element. A handle 5 is detachably secured by a screw 4a to the tang 4, leads 6 being taken from the element through the tang and handle to terminals 7. The blade 1 has a curved part 2 to facilitate spreading butter &c.
Patent GB-598760-A (GB)
Title: A new or improved conveyor
IPC: B65G17/06
Filed: 1945-09-08
Abstract: 598,760. Conveyers. BEESTON, W. G. Sept.. 8, 1945, No. 23192. [Class 78(i)] A, conveyer, primarily for conveying articles through a furnace, comprises a series of parallel rotatable spindles carrying discs or the like for supporting articles to be transported and links connecting adjacent spindles at or adjacent each end to form an endless conveyer, the spindles being supported at each end by rollers of smaller diameter than the discs and travelling on parallel tracks.. In the embodiment shown, the conveyer is mounted in a furnace k provided with heating means and comprises discs a mounted on spindles b which are supported by rollers c on tracks d and are connected together by links e, the spindles being freely rotatable in the links. At each end the conveyer passes round sprockets f having notches h to receive the spindles. The conveyer is driven by the articles conveyed and means may be provided for limiting the speed of the sprockets. Alternatively one or both sprockets may be positively driven. If tubes or bars are to be conveyed, the discs may be replaced by plain or grooved rollers. -
Patent GB-460782-A (GB)
Title: The manufacture of azo dyestuffs insoluble in water
IPC: C09B29/20
Filed: 1935-08-19
Abstract: Azo dyes insoluble in water are made in substance, on a substratum or on the fibre by diazotizing an amine of the formula <FORM:0460782/IV/1> and coupling with arylamides of 2 : 3-oxynaphthoic acid with the exception of those containing at least two alkyl groups as substituents in the aryl nucleus.  They yield intense yellowish to red shades particularly fast towards boiling caustic soda solutions.  In an example, cotton is impregnated with 1-(2<1>-hydroxy-3<1>-naphthoylamino) - 2 - methyl - 4 - chlorobenzene and developed with diazotized 2-amino-4-n-propylsulphone-diphenylether (yellowish scarlet).  A list of components is given.  Specifications 6379/12, [Class 2 (iii)], 17279/13, [Class 15 (ii)], 195,600, [Class 2 (iii), 202,984, [Class 15 (ii)], 279,146, 294,883, [both in Class 2 (iii)], and 383,064 are referred to. 2-Amino-4-n-propylsulphone-diphenylether is made by nitration of 4-chloro-1-n-propylsulphone-benzene to form 3 - nitro - 4 - chloro - 1 - n - propylsulphonebenzene, condensing with potassium phenolate to yield 2-nitro-4-n-propylsulphone-diphenylether and reducing.