baber/WOPTO huggingface dataset:
Patent GB-1461757-A (GB)
Title: Pulley assemblies
IPC: B66D1/74
Filed: 1975-05-12
Abstract: 1461757 Winches LEISYSTEM 12 May 1975 [20 May 1974 5 May 1975] 19827/75 Heading B8B [Also in Division F2] A wedge-action rope pulley 3 having a V- section groove 4 with the two sides of the groove containing flutes 6 inclined relatively to the corresponding radii, the flutes on one side being disposed symmetrically opposite those in the other side, is secured to one end face 1a of a winch barrel 1, and a free end 13a of a rope 13 passed around the winch barrel may be received in wedging engagement within the groove 4 of the pulley 3, the rope being guided in relation to the pulley by a holding member 8 comprising an annular portion 9 freely rotatable about the pulley axis and a tongue portion 10 which on its upper surface carries a guide finger 11 and on its lower surface is provided with a brake friction pad 12. The holding member 8 also has raised rim portions 9a and 10a which retain the rope 13 around the pulley upon occasions when the rope end 13a has been thrust forward towards the pulley, thereby easing it out of engagement with the flutes, as shown in Fig. 5, and permitting rope to be paid out from the winch. Tension applied to the rope end 13a will draw the rope into wedging engagement with the flutes 6, thereby causing rope to be hauled in by the winch, while resulting rope pressure on the brake pad 12 causes the holding member 8 to rotate bodily with the winch barrel and the pulley 3. Only a limited number of additional turns of rope may however be permitted to be stored on the winch barrel 1 by such action. In another embodiment, Fig. 11, the holding member may rotate bodily with the winch barrel and pulley only for a portion of one revolution, after which a fixed stop 24 holds stationary a tongue 23b of the holding member, and rope hauled on to the winch barrel is then offset by rope paid out from the pulley. In the embodiment of Fig. 11, the rope is held into the pulley groove by knurled rollers 27a and 27b, mounted on a rocking strip 26 pivoted to the holding member at 25. The pulley may be built up from disc sections of plastics material, e.g. nylon.
Patent GB-201927-A (GB)
Title: Apparatus for the production of anhydrous tin chloride
IPC: C01G19/08
Filed: 1923-08-02
Abstract: 201,927. Buss Akt.-Ges. Aug. 4, 1922, [Convention date]. Stannic chloride.-Apparatus or the production of anhydrous stannic chloride comprises one or more reaction vessels similar to inclined jacketed retorts A in which the tin ingots are closely packed so as to leave a small space around them for the chlorine. The inclination of the chambers A is such as to allow stannic chloride but not molten tin (if any forms) to be run off into receptacles D. The jackets a are cooled'by water, and chlorine is admitted by a pipe C. A vacuum pump E is connected with the chambers A through a washer F and pipes e, e<1> for exhausting the chambers before and after charging. In a modification, Fig. 3, a further cooling effect, is produced by circulating the chloride between the reaction chamber A' and a cooler N bv means of an ejector m and blower n. The chambers may be arranged in series instead of in parallel. Specification 23449/06 is referred to.
Patent GB-821220-A (GB)
Title: A process for the production of toluylene diamines
IPC: C07C209/36
Filed: 1958-06-20
Abstract: 2,4- and 2,6-toluylene diamine is prepared by continuously hydrogenating 2,4- and/or 2,6-dinitrotoluene in the liquid phase in an organic solvent at a temperature of more than 120 DEG  C. and at a pressure above 50 atmospheres in the presence of Raney nickel. The reaction preferably takes place at 150-170 DEG  C. in the presence of methanol, dioxane or tetrahydrofuran and the nitrated reactant may be admixed with toluylene diamine if desired.  In an example, a mixture containing dinitrotoluene, methanol, toluylene diamine, water and Raney nickel, obtained by adding fresh dinitrotoluene, methanol and Raney nickel to a sample of the unfiltered product, is hydrogenated at 170 DEG  C. and 50-100 atm. in a reactor comprising 4 vessels connected in series through which the reaction mixture and hydrogen are pumped.  Some of the product is separated for recycle with fresh dinitrotoluene and the remainder is freed of catalyst, methanol and water, and the crude toluylene diamine distilled.
Patent GB-732620-A (GB)
Title: Paper making machine
IPC: D21F9/04
Filed: 1953-07-17
Abstract: 732,620. Cylinder paper-making machines. STEVENS, S. S. July 17, 1953, No. 19902/53. Class 96. Pulp from a flow-box 1 flows along a conduit 4a with a flexible, or a telescopic connection to a delivery duct 4b pivoted at 16 to adjustment rods 33, which, with another adjustment 25 allows the width of the pulp stream (radially to the forming-cylinder 8) to be varied, a " throatplate " 17 being similarly pivoted at 19, and also at 18, a rubber or fabric wiper being fitted near the pivot 19. End-plates are pressed in place by spring action. The cylinder 8 may have a high suction zone flanked on both sides with a lesser suction zone. The flow-box 1 may be drained at 6 and 6a.
Patent GB-1474414-A (GB)
Title: Electric circuit for braking an asynchronous electric motor
IPC: H02P3/22
Filed: 1974-05-07
Abstract: 1474414 Control of A.C. motors ELITEX ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 7 May 1974 [15 May 1973] 19955/74 Heading H2J An asynchronous motor 1 is braked by disconnecting it from its three phase supply (at terminals 11, 12, 13) and connecting it (at terminals 8, 9, 10) to a braking circuit composed of star-connected capacitor-diode pairs 2, 5; 3, 6; 4, 7, the consequent asynchronous generator operation producing a constant braking torque down to approximately one fifth of synchronous speed, below which the braking torque decreases rapidly. If a lower overall braking torque is desired, the members 4, 7 may be omitted or short-circuited. At least one of thecapacitor-diode pairs may be shunted by a resistor, Fig. 2 (not shown) to maintain the high braking torque down to a speed lower than one fifth synchronous value. This resistor also ensures discharge of the capacitors 2, 3, 4 after the end of asynchronous generator operation. In Fig. 3 two such resistors 14, 15 are used and also D.C. braking is produced after the completion of asynchronous generator operation, by means of a circuit comprising diodes 16, 17, 18, resistor 19, capacitor 20 and a switch 21. During generator operation the capacitor 20 is charged, after which the switch 21 is closed (in accordance with a function of time and/or the voltage across capacitor 20) to discharge the capacitor 20 through the motor windings and resistors 14, 15. Capacitor 20 may be replaced by a D.C. voltage source. Resistor 19 may be replaced by an adjustable resistor (22), Fig. 4 (not shown) to vary the discharge time of capacitor 20 relative to its fixed charging time.
Patent GB-1139120-A (GB)
Title: Process for obtaining polymers based on acrylonitrile
Inventor: SARAZIN DOMINIQUE
IPC: C08F20/00
Filed: 1967-05-01
Abstract: 1,139,120. Polymerizing acrylonitrile. CRYLOR. 1 May, 1967 [3 May, 1966], No. 20032/67. Heading C3P. [Also in Division C7] Polymers containing 50-100% by weight of acrylonitrile units and 0-50% by weight of comonomer units are prepared by polymerizing the corresponding monomer or monomers in aqueous medium in a polymerizer made of ferrous metal and in the presence of at least one electrode which is in contact with the polymerization medium and is connected electrically to the body of the polymerizer solely by a circuit outside this medium, the electrode being formed of a metal whose potential, in the medium, is positive with respect to the metal of the polymerizer, which metal is sufficiently electro-positive to dissolve in the medium, releasing hydrogen, immediately after it has been deposited on the wall of the polymerizer, and which exists in only a single oxidation state. Suitable comonomers include vinyl chloride, vinylidene chloride, vinyl acetate, acrylic or methacrylic acid and esters, amides and nitriles thereof, styrene - sulphonic acid, vinyl - oxyarylene sulphonic acids, acryloxyalkoxyarylene sulphonic acids and salts thereof, vinyl pyridine and its alkyl derivatives, and vinyl aminoalkyl ethers. Polymerization is generally effected with a redox catalyst, e.g. a mixture of a persulphate, chlorate, chlorite or hydrogen peroxide with sulphurous or hydrosulphurous acid. a bisulphite or hydrosulphite, or sulphur dioxide. The polymerization can be carried out continuously. The metal of the electrode(s) may be zinc, aluminium or magnesium or alloys thereof, e.g. with one or more of tin, titanium, copper and nickel.
Patent GB-660584-A (GB)
Title: Improvements in or relating to escapement, counting and like mechanism comprising a rotor coupled by magnetic forces to an oscillatory or reciprocatory device for synchronous movement therewith
IPC: G04C5/00
Filed: 1948-07-28
Abstract: 660,584. Clocks. HORSTMANN CLIFFORD MAGNETICS, Ltd., and CLIFFORD, C. F. June 30, 1949 [July 28, 1948], No. 20145/48. Class 139 [Also in Group XXXV] An escapement mechanism operated by magnetic coupling comprises a rotor and an oscillating member one of which has a wavy form with inwardly and outwardly radial extensions, said wavy form being of such configuration that either by the non- uniformity of its reluctance or of the air gap between it and the other member, the rotor rotates continuously in one direction. As shown, a rotor 1 of magnetic material has a part 3 shaped to form an endless magnetic path of wavy form with inward and outward extensions 4, 5 respectively. A vibratory or oscillatory member 2 carries a magnet 6, the pole face of which tends to move along the wavy track 3 as the rotor 1 rotates, conversely when the magnet 6 vibrates, it tends to impart rotation to the rotor 1. Continuous rotation of the rotor 1 is achieved by (1) making the parts of the wavy track 3 where a junction is made between the wavy track and the inward or outward extension of different widths such as 7, 8, Fig. 2, or of different thicknesses, (2) making the air gap between the rotor and the magnet 6 by embossing appropriate parts of the wavy track 3. Specifications 596,216, and 660,581 are referred to.
Patent GB-176729-A (GB)
Title: Improvements in the purification of ores and residues containing oxides of chromium
IPC: C22B34/32
Filed: 1920-10-28
Abstract: Iron and chromium chlorides are obtained from chromium ores by submitting the ore to the action of a halogen or gaseous halogen acid, e.g. chlorine or hydrochoric acid or a mixture thereof, with or without the addition of hydrogen, at such a temperature as to convert some of the constituents of the ore into volatile halogen derivatives.  For example, the iron may be volatilized from crushed and washed chromite by treatment at about 900 DEG  C. with a mixture of hydrochloric acid and hydrogen, the chromium being afterwards volatilized by raising the temperature to 1200 DEG  C. and passing chlorine over the residue; or the iron and chromium may be volatilized together by heating throughout at 1200 DEG  C.
Patent GB-498529-A (GB)
Title: Improvements in or relating to the treatment of molten metals with water soluble reagents
IPC: C22B13/06
Filed: 1937-07-21
Abstract: 498,529. Refining lead and leadantimony alloys. STEVENS, A. H. (National Lead Co.) July 21, 1937, No. 20230. [Class 82 (i)] Molten metals, such as lead or lead-antimony alloys having tin or arsenic as impurities, are treated with molten water-soluble reagents such as molten alkali, in the presence of steam, by vortically stirring them in a kettle, transferring the reagent and the reaction products and treating them with water until a highlyconcentrated solution is formed which, after the removal of solids therefrom, is returned to the vortex. The vortex is formed in the kettle by a stirring device 20 and the molten reagent is removed by a valved pipe 4 which is disposed largely within the kettle so as to prevent solidification of the reagent. The reagent then passes to a launder 5 where it is reacted with aqueous liquid from a pipe 13, is stirred and is pumped to one of two tanks 11, 12. Here the solids are allowed to settle and the clear liquid passed through the pipe 13 to the launder. The solids are occasionally transferred to a filter-press 16 and the filtrate passed to a tank 18 whence it is passed into the vortex.
Patent GB-597002-A (GB)
Title: Propeller shaft bearing assembly for ships
IPC: F16C17/14
Filed: 1945-08-08
Abstract: 597,002. Bearings. BUGATTI, E. Aug. 8, 1945, No. 20286. Convention date, Aug. 10, 1944. [Class 12 (i)] [Also in Groups XXVI and XXXIII] A stern bearing arrangement for a ship's propeller shaft comprises a support member 1 which houses in axial outer sequence a pressure lubricated bearing, such as a bushing 4, a pressure-oil stuffing box device comprising for example opposed cup leathers 16, 17 subjected to oil pressure, and a packing device with pasty lubricant such as a stuffing box with gland nut 36 to compress graphited-asbestos packing rings 28, 29 and having grease fed from a container 35 by a spring piston to pass to the shaft surface through radial ducts 32 in a metal ring 30 arranged between the graphited-asbestos packing rings 28, 29. Leakage oil from the bushing 4 which may be grooved longitudinally or helically and one side 16 of the cup-leather stuffing box is collected by an annular channel 13 and returned to the oil sump or pump by a lower duct 14 in the support member 1. The cup leathers 16, 17 are spaced by a ring 21 with radial ports for entry of the pressure oil, the flow of which is controlled by an outer circumferential textile ring 24. The support member 1 is secured by a flange 3 shaped to the contour of the hull 2. Ball or roller bearings may be substituted for the bush 4; a spring blade 39 holds the gland nut 36 against unintentional rotation.
Patent GB-688455-A (GB)
Title: A valve for use in vacuum apparatus
IPC: F16K51/02
Filed: 1951-08-29
Abstract: 688,455. Fluid-actuated valves. EASTMAN KODAK CO. Aug. 29, 1951 [Aug. 30, 1950], No. 20336/51. Class 135. A valve suitable for use in vacuum apparatus comprises a closure member 26 carrying a sealing ring 27 which coacts with a seat 12 surrounding a port 11 in the valve body, a valve stem 22 having a head 23 slidable in a guide 16, a spring 24 between the head 23 and an end 21 of the guide urging the valve closure member towards open position, and a bellows 28 sealed at one end to the valve member and at the other to the guide 16 and to which compressed air may be delivered through an elbow 19 to close the valve. Connections 13, 15 may be connected respectively to a system to be evacuated and to a roughing pump by which an initial degree of vacuum is obtained in the system. The port 11 is connected to a diffusion pump by which a higher vacuum is obtained when the valve is open.
Patent GB-1130832-A (GB)
Title: Improvements in zero setting control devices for roller-type counters
IPC: G06M1/32
Filed: 1967-05-02
Abstract: 1,130,832. Counting - apparatus. COMPAGNIE DES COMPTEURS. 2 May, 1967 [5 May, 1966], No. 20383/67. Heading G4D. Zero-setting mechanism of the type in which there is an individual latch for each lever and heart-cam comprises a control shaft which is turned first in one direction, then in the reverse direction, and finally in said one direction to initial position. The invention is concerned with fuel-dispensing apparatus. At the beginning of a dispensing operation the control mechanism is as shown in Fig. 4 and the digit wheels 1 and associated apparatus are as in Fig. 2. As the lowest order wheel 1 is rotated its heart-cam 14 rocks the associated lever 13 about its pivot 9 until the other end 13b is caught up by its associated latch 16. At the same time transfer pinion 11 engages the drive to the next higher denomination. The process repeats individually for each denomination. Resetting.-Shaft 22 and toothed gear 21 are turned counterclockwise until the end of slot 33 abuts pin 34. Link 23 pulls toothed segment 19 to rock shaft 17 counter-clockwise in Fig. 4, but clockwise in Fig. 2. A cam (18) (Fig. 3, not shown), disengages the drive to the lowest digit wheel and the latches 16 release the levers 13 which are rocked by springs 15 to hit the heart-cams 14. The shaft 22 is then turned in the opposite sense until the other end of slot 33 abuts pin 34. After an initial idle movement due to slot 24, segment 19 and shaft 17 are rocked further so that the tail 16b of each latch 16 pushes at 13c on each lever 13 to ensure full resetting. Finally shaft 22 is returned to original position by the pull of spring 32 on segment 19, the drive to the lowest digit wheel being re-engaged. Sprung pawls 27, 28 ensure full-stroke operation.
Patent GB-454889-A (GB)
Title: Improvements in or relating to gramophone record cabinets
IPC: A47B81/06
Filed: 1935-07-17
Abstract: 454,889. Boxes for gramophone records. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A., and MILLER, R. J., 5, Bentley Way, Stanmore, Middlesex. July 17, 1935, No. 20400. [Class 18] A box to hold gramophone disc records has means, e.g. wires c, for separating and supporting the records on either side of a raised portion such as a bar b, and a record which can be rolled over the bar to separate it from the remainder will remain by gravity in position on either side of the bar. In lieu of the bar or a projecting portion, the bottom of the box could be inclined upwardly towards the centre to form a ridge, or the records could be received in recesses on either side of the centre line of the bottom. The box is lined with baize or felt f, and the bar b and wires c are covered with cloth or rubber.
Patent GB-1047093-A (GB)
Title: Improvements in or relating to releasing apparatus for racing pigeons
Inventor: HARRISON WILFRED
IPC: B60P3/04
Filed: 1964-05-19
Abstract: Release traps for pigeons comprise a plurality of baskets mounted in one or more tiers within a framework, the framework comprising a rotatable rod mounted adjacent each row of baskets and provided with protruding levers which are adapted in one position of the rod to hold closed the flaps of the baskets, the rods being rotatable by remote control through 90 degrees to allow the flaps to open, and to support the flaps in their open positions.  Preferably the traps comprise two tiers, mounted one along each side of a vehicle trailer, and the rods are operated by one or more hand levers from the rear of the trailer.
Patent GB-1409836-A (GB)
Title: Electronically tunable solid state oscillator
IPC: H03B9/12
Filed: 1973-04-30
Abstract: 1409836 Semi-conductor oscillator circuits VARIAN ASSOCIATES 30 April 1973 [1 May 1972] 20499/73 Heading H3T An electronically tunable solid state oscillator comprises a re-entrant cavity resonator having a hollow outer conductor 1 and an inner conductor 5 one end of which forms a capacitative gap 6 with an opposed portion of the resonator. A negative resistance solid state device, e.g. Gunn diode 8 is located in the gap 6, being mounted on the stud 14. A varactor diode 9 is located in series with the Gunn diode 8; the inner conductor 5 of the cavity is hollow, containing an insulated inner conductor in the form of a series of quarter-wave R.F. chokes 11: the varactor diode 9 is connected by one terminal to this inner conductor and by its other terminal to the hollow conductor 5, via an inductive wire 13 which resonates with the package capacitance of diode 9. The varactor diode 9 is biased from source 19, via the inner and outer conductors of hollow conductor 15. The outer conductor 1 of the resonator is formed by upper and lower parts 3, 7 respectively, separated by a layer of insulation 15, the Gunn diode 8 being biased from source 16 via the parts 3, 7. The wall of the part 3 may be made of such a thickness as to form with part 7 and the intervening insulation 15 a quarter wave choke. A shunt connected varactor diode 21 may be provided in addition to, or instead of the series connected varactor diode 9, being mounted on, and biased via, a second hollow conductor 22 containing R.F. chokes 23, in the same manner as diode 9.
Patent GB-968580-A (GB)
Title: Improvements relating to the packaging of vapour permeable reservoirs
Inventor: CORWIN MELVIN PHILIP
IPC: B01L3/02
Filed: 1963-05-23
Abstract: 968,580. Capillary pipettes. BECTON DICKINSON & CO. May 23, 1963, No. 20641/63. Heading B1X. [Also in Division B8] In a package of blood test apparatus, the pipettes have a glass capillary tube 20 with known internal capacity and supported at one end by a tip 22 of a sleeve 21 which has greater sectional area than the tube 20 so that the blood will rise into the capillary tube to fill it and then cease. A tab 24 may extend from the portion 23 of the sleeve 21 for manipulation of the pipette and also for carrying indicia. Protrusions 25, 26 of the sleeve are dimensioned to fit the opening of a reservoir of diluent 29 (see also Division B8) the closure plug 34 of which may be forced inwards manually and thereafter act as a mixing bead. The plug 34 may be coloured to indicate the type of diluent.
Patent GB-148872-A (GB)
Title: Process and apparatus for the production of electric carbons
IPC: H01R43/12
Filed: 1920-07-10
Abstract: 148,872. Schmidthammer G. L. March 20, 1918, [Convention date]. Carbon.-Carbon articles for electric purposes, fnr instance dynamo brushes, arc-lamp carbons, electric-welding and other electrodes, and granules lor microphones, are kept in motion during baking in such a way that uniform distribution of the binding-material is maintained. Dynamo brushes may be made. from a mixture of powdered carbon and metals with tar, syrup, resin or light oils and alcohol. They may be placed vertically in a furnace rotating about a horizontal axis.
Patent GB-1083206-A (GB)
Title: Lubricants comprising polyphenyl ethers and mixed metal salts of fatty acids
Inventor: MORWAY ARNOLD JESSE
Filed: 1965-05-17
Abstract: A lubricating composition comprises a major amount of a polyphenyl ether oil of the general formula <FORM:1083206/C4-C5/1> where n is 3 to 6, and 5 to 40% by weight of alkaline earth metal mixed salts of a C2 to C4 fatty acid and a C7 to C30 fatty acid in a molar ratio of 4 to 30 mole equivalents of the former per mole equivalent of the latter.  The salts may be prepared in situ.  Inorganic acids such as HCl, HNO3, H2SO4 and H3PO4 may be used in addition to the low-molecular weight acid; alkali or alkaline earth nitrites, phosphates, chromates and carbonates may be added.  If the salts are formed in situ the mixture may (but need not) be dehydrated. Optional additives include P.A.N., and thickeners such as polyethylene, polypropylene, carbon black and soap.
Patent GB-225911-A (GB)
Title: Improvements in and connected with the construction of crankcases for internal combustion engines
IPC: F02F7/00
Filed: 1923-08-15
Abstract: 225,911. E.L-S. Engines, Ltd., and Spina, E. Lanzerotti-. Aug. 15, 1923. Crank chambers; frames. - The cylinder supporting frame 2 and the crank-shaft supporting frames 3 are formed separately and are rigidly connected by bolts 4 which act both as cylinder holding-down bolts and as main bearing bolts, but which may be sufficiently far apart for independent bearing bolts to be used. The parts 3 may be extended so as to abut against the part 2, in which case they may be connected by short bolts &c. Sheet-metal covers 8, 9 are provided. The whole engine is carried in bearers 7, and mav be inverted. Specification 123,856, [Class 7 (vi), Internal-combustion engines, Valves &c. for], is referred to.