baber/WOPTO huggingface dataset:
Patent GB-364048-A (GB)
Title: Improvements in or relating to the manufacture of sulphide blacks
IPC: C09B49/02
Filed: 1930-09-24
Abstract: In the production of sulphide blacks by heating nitrophenols with polysulphides, a thiosulphate is added to the mass undergoing fusion; the boiling point of the mixture is thereby raised and the mass rendered more mobile.  The process may be effected under increased pressure.  In examples, sodium 2 : 4-dinitrophenolate, sodium polysulphide, and sodium thiosulphate are employed, under ordinary or increased pressure; the diluted charge is precipitated by air or by adding sodium bisulphite; sodium sulphite may be added before precipitation to remove free sulphur. The sodium thiosulphate may be replaced by reagents, such as sulphur and sodium sulphite, which form it in situ.  Other parent materials specified are mono-, di-, and tri-nitrophenols, and dinitrohydroxydiphenylamines.
Patent GB-339386-A (GB)
Title: Improvements in or relating to bowden wire and other flexible transmission mechanism
IPC: F16C1/26
Filed: 1929-09-20
Abstract: 339,386. Bowden Wire, Ltd., and Nisbet, A. H. Sept. 20, 1929. Channels in Bowden machines. - In Bowden and like mechanism with the inner member a of flexible stranded wire, solid wire or rod, jointed rods, or rods and stranded wire in combination, the outer member b, which may be in one length or in joined lengths, consists of a coil of wire or other material, of square, round, oval, ribbon, or other section wound into waved, stepped, or other form so as to leave pockets or spaces d around the inner member. Friction is thus reduced, and the pockets may contain grease or other lubricant, in which case a waterproof or other covering for the outer member may be provided.
Patent GB-413629-A (GB)
Title: Multiple wire drawing machine
IPC: B21C1/12
Filed: 1932-10-14
Abstract: 413,629. Drawing wire; electric motor control systems. NACKEN, W., 18, Mittelbacherstrasse, Gr³na, near Chemnitz, Germany. Oct. 14, 1932, No. 28745. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 18, 1932]. [Class 83 (iv).] Each of the drums of a multiple wire-drawing machine is driven by a separate motor or engine, the stopping or starting of one motor causing all the preceding motors to be stopped or started, and being effected by switches so constructed that the starting current impulse of each motor has ceased before the succeeding motor is switched in. The switching devices may also be applied to the circuits of electromagnetic clutches in machines in which the drums are driven through separate clutches from a main shaft. Rotary switches a<2>-d<2> , Fig. 2, control contacts a<3>-d<3> for motors for the drums a-d of the wire-drawing machine. A series of contacts f, Fig. 4, is adapted progressively to engage contacts g<1>-g<4> in the final switch, so that the preceding motors are switched in successively as the switch is rotated by clockwork mechanism or manually. Similarly, three contacts are provided in the third switch and two in the second. Each switch has a single switching out contact, so that by reverse rotation all the corresponding motors are simultaneously switched out. Foot-operated switches a<1>-d<1> permit individual slow rotation of the motors for threading the wire. Instead of the stepped switches, press buttons corresponding to the contacts of the switches may be used.
Patent GB-1431383-A (GB)
Title: Telescopic rock drill feed
IPC: E21B44/06
Filed: 1973-06-18
Abstract: 1431383 Drill feed mechanism GARDNER-DENVER CO 18 June 1973 [14 Dec 1972] 28855/73 Heading B4C [Also in Division B3] A feed mechanism, e.g. for a rotary percussive rock drill, comprises an elongate support 12, an elongate drill guideway 24 mounted on the support for reversible movement therealong, a drill motor 32 mounted on the guideway for reversible movement along the guideway, and power means for moving the guideway along the support and the drill motor along the guideway. A pressure fluid control circuit is provided including series connected first and second valves on the gaideway and support 12, respectively, actuated by projections on the drill motor 32 and the guideway 24, respectively, when the mechanism is fully extended to produce a pressure fluid signal. The support 12 is adapted to be slidably and pivotably supported on the end of a drill boom by guides 13 and a support 14. The support 12 has grooves receiving the edges of a plate 26 attached to the guideway 24, and the guideway has grooves receiving ridges on the drill motor 32. The guideway 24 carries rotary fluid motors 46, 48 which drive power screws 54, 64 rotatably mounted on the guideway. A nut 68 fixed to the support 12 is threaded on the screw 64, and a nut 58 on the motor 32 is threaded on the screw 54 so that operation of the motors 46, 48 causes relative movement of the parts 12, 24 and 32. The support 12 and guideway 24 carry centralizers 42, 40, respectively, for a drill rod 36. As shown in Fig. 6, the motors 46, 48 are connected in parallel in an hydraulic circuit including a reversible pump 87 driven by a motor 86. In one mode of operation the motors 46, 48 are operated together to advance the guideway 24 and drill motor 32. At the forward limits of their advance projections 95 on the motor and 100 on the guideway operate valves 93, 98, respectively, so as to permit the flow of pressurized air from a source via conduits 103, 105, 108 to a control circuit which causes the pump 87 to be reversed. The guideway and motor are thus retracted to rearward positions in which projections 99, 96 carried thereby operate valves 97, 94 to send a further pulse of pressurized air via conduits 101, 104, 109 to the control circuit and so again reverse the pump 87. In a second mode of operation a manually operated valve 89 is moved to isolate the motor 48 and at the same time open a conduit to bypass valve 97. In this case only the motor 32 is fed and retracted, the guideway 24 remaining in its retracted position.
Patent GB-162015-A (GB)
Title: Improvements relating to electricity meters
IPC: G01R11/00
Filed: 1919-11-20
Abstract: 162,015. Chamberlain & Hookham, Ltd., and James, S. Nov. 20, 1919. Mercury motor meters; casings for meters.-An automatic sealing-device for mercury motor meters consists of a spring- controlled lever a operating a sealing- mechanism b, and engaging with a rod c which passes to the exterior of the casing, and is engaged by a screw g which holds in position a detachable cover f for the terminals, when the meter is in position, the rod c is pushed in so as to release the sealing mechanism, and the screw g is inserted in the aperture k. Removal of the screw to allow of access to the terminals causes the sealing-mechanism to be actuated. A second aperture h may be provided in the rod so that the sealing-mechanism may be fastened in its operative position.
Patent GB-504783-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/56
Filed: 1937-10-22
Abstract: 504,783. Thermionic valves; valve circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 22, 1937, No. 28892. Convention date, Oct. 22, 1936. [Classes 39 (i) and 40 (v)] In a gas or vapour filled valve the control electrode 17 between the anode 6 and cathode 7 is shielded by a pair of independent tubular members 23, 24 which enclose the entire discharge space and are provided with apertured baffles 26, 27. The members 23, 24 are supported from the tube stem 2 by means of conductive supports 28-31 carried by rings 33, 34 whereby suitable potentials may be applied thereto; if the member 24 is slightly positive with respect to the cathode while the member 23 is at a still higher potential, the discharge may be initiated on the application of a critical voltage to the electrode 17 irrespective of the voltage on the anode provided this is above a minimum value. This critical voltage may be made dependent on the light on a photo-electric tube 48 in a bridge 50 connected to the electrode 17. In a modification, the side walls 55, 56, Fig. 2, of the vessel form the tubular members carrying the baffles 64, 65 ; the walls are united by an insulating ring 57 sealed to the tubular members. The bias potentials are taken from a potentiometer connected to a transformer 70, the potential being limited by a glow discharge lamp 81. A trigger voltage may be applied by any device 76 to raise the negative bias in the control electrode 59. Specifications 282,712, [Class 39 (i)], 386,376, 445,593 and 473,666 are referred to.
Patent GB-425956-A (GB)
Title: Improvements in or relating to methods of operating cable impregnating tanks
IPC: H01B13/30
Filed: 1934-10-09
Abstract: 425,956. Impregnating-tanks. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN-EN APPARATEN FABRIEKEN MEAF, 30, Croeselaan, Utrecht, Holland. Oct. 9, 1934, No. 28894. Convention date, Sept. 17. [Class 36] A process of impregnating cables in impregnating-tanks comprises filling the space in the tank not occupied by the cable or by baskets containing the cable with one or more displacement bodies. An annular impregnating-tank a is filled with one or more cablecontaining baskets b and one or more solid or hollow displacement bodies c. The baskets used may be of such depth as to take the minimum length of cable to be treated, the displacement bodies being of corresponding size.
Patent GB-1174588-A (GB)
Title: Brake Assemblies for Monorail Vehicles
Inventor: OVEN TERENCE
IPC: B61H7/00
Filed: 1966-06-28
Abstract: 1,174,588. Elevated railways. COAL INDUSTRY (PATENTS) Ltd. 20 June, 1967 [28 June, 1966], No. 28981/66. Heading B7L. [Also in Division F2] In a brake assembly for a monorail vehicle resilient means are provided for urging a brake pad into engagement with the monorail and an hydraulic jack is selectively operable to apply a force in opposition to the resilient means to retain the pad out of engagement with the monorail. The embodiment comprises a suspension trolley 50, Fig. 2, of substantially U- shape having side members 5 on either side of monorail 1, being supported therefrom by rollers 3 resting on either side of the lower flange 2 of the rail. Brake supports 10 carry brake pads in the form of inserts 11 for engagement with either side of the web 4 of the monorail, and are attached by means of pins 12 to projecting lugs (19a, Fig. 3, not shown) on disc-shaped guide members (19). These guide members are attached to the ends of inner tubular members 17 and slide within fixed outer tubular members 15 having apertured end caps 18; the spaces between the inner and outer tubular members are filled with Belleville washers acting as springs to urge the brake pads into engagement with the monorail. The pins 12 also form attachments to links 21 pivoted on levers 8, which are provided on either side of each outer tubular member 15 and are pivoted on fixed pivots 22; the lower ends of the two pairs of levers 8 are attached respectively to the cylinder and piston of an hydraulic jack 9, whereby the brake pads can be urged out of engagement with the monorail. Governor for operating brake assembly.-A wheel 28, Fig. 4, bearing on the web 4 of the monorail is attached to a vertical shaft 29 carried in a housing 26 which is attached by means of a resilient torque bush (27, Fig. 5, not shown) to a shaft 24 held in bush 25 affixed to the suspension trolley 5. The lower end of shaft 29 carries a circular governor frame 33 (see also Fig. 6) supporting by means of two pivoted resilient linkages 32 a segmental striker member 31 adapted to move radially outward under the action of centrifugal force. Linkages 32 provide a toggle action, whereby when a critical speed is exceeded an over-centre position is passed and striker member 31 moves rapidly outwards, so that chamfered surface 36 engages a roller 37, thereby depressing the moving member 39 of hydraulic valve 38. Roller 37 is carried on lever 43 to which a chain 46 is attached for alternative manual operation of the hydraulic valve; a cable 47 attached to lever 43 also opens an unloader valve removing hydraulic power from the drive wheels of the vehicle. The Specification also refers to an alternative embodiment in which the spring means serving to operate the brake are combined in a single cylindrical unit with the hydraulic jack for releasing the brake.
Patent GB-937240-A (GB)
Title: Molecular weight determination apparatus
IPC: G01N25/14
Filed: 1960-08-22
Abstract: <PICT:0937240/III/1> The molecular weight of a solute is found by determining the difference in equilibrium temperature, in an atmosphere saturated with solvent vapour, between a sample of liquid solvent and an equivalent sample of solution using an apparatus which has a temperature sensor having a surface capable, by surface tension effect, of retaining in heat-exchanging contact with the temperature ensor a film of liquid exposed to the solvent vapour. As shown in Fig. 1, two similar temperature-sensitive resistors(thermistors) 24 and 25, forming adjacent arms of a Wheatstone bridge, are enclosed by helical wire coils 28 which allow the liquid sample to be held in contact with the thermistor as a thin film, one thermistor bears a film of solvent and the other a film of solution.  A quantity of solvent is placed in a cylindrical container 10 which is immersed in a thermostat at 30 DEG C.  Initially solvent is applied to both thermistors and when temperature equilibrium has been reached in the vapour chamber the bridge circuit is balanced.  The solvent in contact with thermistor 24 is rinsed off and replaced with 0,1 to 0,2 ml. of a solution at 30 DEG C. containing 0,005 to 0,01 mole fraction of the compound whose molecular weight is to be determined.  When thermistor 24 has reached its maximum temperature and hence its maximum resistance, the bridge circuit is re-balanced and the change in resistance noted.  The molecular weight is given by <FORM:0937240/III/1> where "MWx", "MWs" are molecular weights of solute and solvent, g is weight of solute, gs is weight of solvent, D R is change in resistance of thermistor 24 and K is a constant. Instead of helical coils the liquid retaining means may consist of woven wire screens, closely adjacent wire rings or loops, a very thin layer of metallic sponge or even closely spaced grooves or ridges in the thermistor itself.
Patent GB-289111-A (GB)
Title: Improvements in and relating to the manufacture of titanium compounds
IPC: C01G23/00
Filed: 1926-11-17
Abstract: 289,111. Wade, H., (Titan Co. Aktieselskabet). Nov. 17, 1926. Alkali titanates; double salts. - Titanium compounds soluble in organic acids and dilute mineral acids are obtained by heating an hydrated oxygenated compound of titanium, such as metatitanic acid or basic titanium sulphate, in the presence of alkali at a temperature below the fusion point of the reaction mass, say, at 150‹ C. The titanium compound may be made into a paste with water prior to being heated with alkali, which may comprise potassium or sodium hydroxide or carbonate. From the products, double salts of titanium and alkali with organic or inorganic acids, such as titanium sodium tartrate, titanium sodium lactate. titanium potassium oxalate, or titanium sodium sulphate, and mixed salts, such as those of titanic, oxalic, and tartaric acids, or of titaric, oxalic, and lactic acids, may be obtained by the action of the necessary acid or mixture of acids. Examples are given of the treatment with potassium hydroxide and carbonate, and of the production of titanium potassium oxalate from the products.
Patent GB-500385-A (GB)
Title: Improvements relating to blending agents for lubricating oils
IPC: C10M135/06
Filed: 1937-10-25
Abstract: 500,385. Lubricating -compositions. STANDARD OIL DEVELOPMENT CO. Oct. 25, 1937, No. 29105. Convention date, Dec. 24, 1936. [Class 91] An improved lubricant comprises a hydrocarbon oil base and a sulphurized polymer of a semi-drying oil. About 10 to 40 per cent of a sulphurized polymer of rapeseed, mustard seed or a blend of the two oils is preferred. The polymerized oil is sulphurized so that it contains at least 0À5 per cent of sulphur, and preferably 0À5 to 3 per cent. The polymer is prepared by (a) heating the semi-drying oil to 550 to 650‹ F. in a vacuum, (b) by subjecting to an alternating electric glow discharge, (c) by the action of a catalyst such as chlorides of Al, Zn or B, S2Cl2 or SCl2. The polymerization is preferably carried out in the presence of À5 to 1À5 per cent of sulphur. The semi-drying oil is polymerized to a viscosity of from 100 to 1000 seconds Saybolt at 210‹ F. The polymerized oil is sulphurized by heating with sulphur to 400 to 500‹ F. until the desired degree of sulphurization is reached. The sulphurized oil may be digested for a short time at 275 to 300‹ F. The hydrocarbon oil base may be dewaxed distillate fractions from paraffin or mixed crudes, or from solvent-extracted oils.
Patent GB-1270680-A (GB)
Title: Improvements in or relating to methods and apparatus for continuous vaporization of liquids
Inventor: HART THOMAS GORDON
IPC: C23C14/26
Filed: 1969-06-09
Abstract: 1,270,680. Water purification by distillation. PHELPS DODGE CORP. 9 June, 1969, No. 29122/69. Heading B1B. [Also in Divisions C7, H3 and H5] A liquid, which may be water, is continuously vapourised by dripping it on to an electrically heated helical coil 22 such that discrete globules 39, 40, of liquid travel down the coil, which is of a material wetted by the liquid. The globules 39, 40, preferably bridge adjacent turns of the coil 22 as they travel down the coil in "solid-bridging" flow to replenish a helical sheath 41 of the liquid over the coil surface as the liquid vapourises. The apparatus is evacuated. A container 20 acts as a reservoir for the supply of liquid to the coil via a specially designed, stable dropforming orifice 21, made of a material not significantly reacted upon or wetted or dissolved by the liquid. The theory of the "stable dripping orifice" 21 and the "solid-bridging" flow of discrete globules 39, 40, of liquid is fully described. Applications to steam generating and water purification by distillation are mentioned.
Patent GB-509377-A (GB)
Title: Improvements in or relating to kilns for the treatment of malt or the like
Filed: 1938-10-08
Abstract: 509,377. Drying malt &c. THERMO-TANKS, Ltd., and HILL, A. Oct. 8, 1938, No. 29213. [Class 34 (ii)] A kiln for drying malt and the like has an air flow system, including ducting 4 arranged above the perforated malt floor or floors 3 and presenting adjustable air openings 5 along the ducting, a fan 8 with an intake branch 7 connected by a duct 6 to the ducting 4, the discharge branch 9 of the fan being connected by a duct 12 for delivery to a heating chamber 1 below the floor 3 with provision for recirculation of air, and a valve 13 controlled by a humidostat for controlling the amount recirculated or discharged to atmosphere by a duct 11. An air-diffusing floor 2 is provided.
Patent GB-184817-A (GB)
Title: Improvements in or relating to coal cutting machines
IPC: E21C25/06
Filed: 1921-07-16
Abstract: 184,817. Linneker, J. R. July 16, 1921. Drilling-machines. - A coal boring machine comprises a cutter spindle B slidably mounted in a frame A and driven from a motor C through gearing E, G, H, the cutter spindle being connected to a saddle J sliding on guide rods K and moved by a screw L to feed the cutter; the spindle B, guide rods K and screw L are in the same horizontal plane. The gear H forms a flywheel or an independent flywheel H<1> may be provided. The frame A may be turned by worm gearing P<1>, N<1>, about a vertical pivot N on a carriage O. Holes may be drilled out of line with the cutter spindle B by means of a drill socket R in an attachment S carried by the spindle, the socket R being driven from the spindle throughchain gearing T.
Patent GB-319512-A (GB)
Title: Improvements in thermostatically controlled valves
IPC: F16K1/14
Filed: 1928-10-12
Abstract: 319,512. General Gas Appliances, Ltd., and Coleman, F. S. Oct. 12, 1928. Thermally - - actuated valves. -In thermostatically controlled valves of the kind comprising a disc-like valve member d operated by a thermal element x through adjustable regulating mechanism, such as balls f and an interposed adjusting wedge, a dust shield k is arranged in the valve chamber over and surrounding the valve member d. The shield k is secured by the screwed cover n which presses upon tongues m projecting from the shield; any dust or other impurities in the gas entering at b strike against the shield and settle to the bottom of the valve chamber.
Patent GB-790389-A (GB)
Title: Improvements in or relating to fuel elements for use in nuclear reactors
Inventor: MORRISON IAN HUGH
IPC: G21C3/04
Filed: 1955-10-14
Abstract: 790,389. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Oct. 9,1956 [Oct. 14, 1955], No. 29439/55. Drawings to Specification. Class 39(4). In a nuclear reactor fuel element, a circular section rod of natural uranium is sheathed in magnesium. The rod is provided with surface cavities into which the sheath is forced by external pressure. The sheath has helical fins and end caps welded into position which engage magnesium-manganese alloy discs at the ends of the fuel rod.
Patent GB-1393344-A (GB)
Title: Pneumatic pipeline conveyor for briquetted materials
IPC: B65G51/26
Filed: 1973-06-21
Abstract: 1393344 Pneumatic conveyers SPETSIALNOE KONSTRUKTORSKOE BJURO TRANSNEFTAVTOMATIKA 21 June 1973 29468/73 Heading B8A Material is conveyed through a system of pipes by suction to material receivers associated with briquetting devices; on transmission of signals indicating that the briquette formed is of the required compactness and that a train of containers is positioned beneath the briquetting devices, power-operated covers closing unloading ports of the briquetting devices are opened and power-operated ejectors discharge the briquettes to the containers, which are then conveyed by air pressure differential along a pipeline to an unloading station. In the figure, material, e.g. domestic refuse, arrives at receiver 7 and falls into chamber 25. Piston 27 moved by hydraulic cylinder 28 compacts the material into chamber 43, cover plate 35 co-operating with edge 39 of the receiver and plate 31 of the piston to isolate the material from receiver 7. Piston 42 of ejector 40 is provided with a briquette-density transmitter which emits a signal to a control unit when the required density is achieved. On reception of this signal and that from transmitter 54 indicating that containers are positioned beneath the ejectors, a control unit actuates cylinder 49 to open cover 47 and then actuates cylinder 44 to eject the briquette into container 13. The loading ports 46 of the station are closed and sealed before the train of containers is moved by air pressure differential through a pipeline to a distant unloading station (e.g. at a refuse processing site).
Patent GB-408169-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C19/38
Filed: 1933-10-24
Abstract: 408,169. Roller bearings. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN, 17, Artillerigatan, Gothenburg, Sweden. Oct. 24, 1933, No. 29492. Convention date, March 4. [Class 12 (i).] A roller bearing comprises inner and outer races 1, 2 adapted to house two rows of rollers 3, 4 having curved profiles and the race ring profile conforming with those of the rollers. A loose guide ring 9 is positioned between the rows and its width is greater than the distance that would separate the rows of rollers if they were subjected to radial load and unrestricted by the guide ring. The guide ring thus exerts a side thrust on each row of rollers. The guide ring may be employed in bearings of the self-aligning type in which case the outer race may be of the spherical type. The rollers may have any curved profile and the curve may have a centre that is offset from the plane at right angles to the axis and midway between the ends of the roller. The contacting surfaces between the guide ring and the rollers may be flat, chamfered or spherical. The rollers may have point or line contact with the races.