baber/WOPTO huggingface dataset:
Patent GB-756198-A (GB)
Title: Method and apparatus for separating mixtures of solid materials in a heavy medium
IPC: B04C5/081
Filed: 1954-02-26
Abstract: 756,198. Centrifugal separators. SCHUCHTERMANN & KREMER-BAUM AKT.-GES. FUR AUFBEREITUNG. Feb. 26, 1954 [March 6, 1953], No. 5819/54. Class 23. In the separation of solid particles, according to specific gravity, by means of a suspension of weighting material, a liquid of specific gravity lower than that of the suspension is fed centrally into that end of a cyclone or vortex chamber to which the suspension is tangentially introduced. In the cyclone shown the suspension is introduced by a tangential inlet 2, and the liquid which is water is introduced by a tangential inlet 6. The solid particles may be fed to the cyclone with the suspension or the liquid, and the heavy particles are discharged through an outlet 3 whilst the light particles are discharged through an axially adjustable outlet 4. The liquid may be supplied axially.
Patent GB-698404-A (GB)
Title: Improvements in or relating to the formation of films on granular fluorescent screens
IPC: H01J29/28
Filed: 1949-03-03
Abstract: <PICT:0698404/III/1> Organic material dissolved or suspended in a volatile liquid is sprayed on to a fluorescent screen impregnated with filling liquid whilst the screen is rotating, thereby securing an even layer, with more rapid rotation afterwards to remove excess organic material to the edge.  Water is poured into the bulb 10 of a cathode ray tube to wet the screen 30 and excess is poured away. A film of lacquer or resin 34 is sprayed on by means of an eccentrically placed spray chuck or gun 39, 40, the bulb being rotated in a centrifuge during the process and afterwards.  The excess at the side is removed by swabbing.  After the resin film has been dried, an aluminium layer is applied by evaporation.  The resin may be isobutyl methacrylate in toluene or acetone, nitrocellulose in butyl acetate, butyl alcohol, ethanol and xylene, isobutyl methacrylate in methyl methacrylate monomer and solvents.  The presence of acetone is preferred since it mixes with the water and thickens the consistency of the resin layer. The amounts of the various ingredients are given in the Specification.
Patent GB-694598-A (GB)
Title: Improvements relating to fluid pressure control systems
IPC: B60T13/66
Filed: 1951-03-13
Abstract: 694,598. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., KIRK, W. A., and MOORE, I. G. March 4, 1952 [March 13, 1951], No. 6006/51. Class 103 (i). A fluid-pressure control system in which the operation of a number of actuators 1, particularly brake cylinders, is under the control of a manually-operated valve 8, comprises electromagnetically-operated supply and exhaust valves 5 and 6 respectively for each brake cylinder 1, which are operated by circuits energized directly by members of the valve 8, which thus act to provide a more instantaneous actuation of the cylinders 1, the control valve 8 being, however, fully effective to control the brake cylinders even if either or both of the electrical circuits are out of operation. The control valve - is of the self-lapping type comprising an inlet port 16, a normally closed inlet valve 9, a port 17 leading to the brake cylinders or actuators 1, a normally open valve 10 and a port 29 to atmosphere. The valves 9 and 10 are opened and closed respectively by manual movement of an abutment 12 which compresses a spring 13 against a slidable valve seat 14. At the same time the circuit to electrical control line 21, is closed by a contact 18 and that to a control line 23 by a contact 19. The circuit to control line 21 opens electromagnetic valves 4 which allow fluid pressure from the reservoirs 5 to pass to the brake cylinders. Simultaneously, the control line 23 operates to close electromagnetic exhaust valves 6. When the valve 8 moves to " lap " position, the control line 21 is de-energized and the control line 23 remains energized so that pressure is retained in the brake cylinders. Further release movement causes de-energization of line 23 allowing fluid to escape by ports 7 simultaneously with flow out by port 29 in the housing of the valve assembly 8.
Patent GB-986412-A (GB)
Title: Traction device for vehicles
IPC: B60C27/14
Filed: 1962-02-16
Abstract: 986,412. Anti-slip attachments. W. A. CRIDER. Feb. 16, 1962 [March 20, 1961], No. 6015/62 Heading B7C. An anti-slip attachment for vehicle wheels comprises a pair of'rigid, generally rectangular frames 11, 12 of metal rod, interconnected at one pair of adjacent ends 28, 28a by a pair of chains 38, 40 linked by a cross chain 42, each frame having its ends 26, 28 (26a, 28a) connected by a longitudinal chain 32 (32a) and its sides 22, 24 (22a, 24a) connected by cross chains 34, 36 (34a; 36a), and the frame 10 having chain 44 anchored at one end to one side of the frame end 26 and terminating at its free end in an eye bolt 48 for detachable connection with a lug 54 at the corresponding side of the end 26a of frame 12. In use, the attachment is disposed against the outboard side of the wheel, as shown in Fig. 2, with the interconnecting chains 38- 42 at the top, and each frame is swivelled to embrace the wheel, Fig. 3, with its sides disposed chordally thereof parallel to the sides of the other frame, the two frames then being secured in position by the eyebolt 48 and lug 54 at the outboard side. In this position the chains 32, 32a, 38 and 40 extend circumferentially around the tyre tread, with-the cross chains 34, 36, 34a, 36a and 42 spanning the tread. The particular arrangement of chains, and interconnection of the frames is alleged to prevent any displacement of the frames in use.
Patent GB-545403-A (GB)
Title: Improvements in needled fabrics and the method of manufacturing such fabrics
IPC: D04H5/02
Filed: 1941-05-14
Abstract: 545,403. Needled fabrics. AMERICAN REENFORCED PAPER CO. May 14, 1941, No. 6228. Convention date, July 1, 1940. [Class 42 (ii)] A needled fabric comprising a reinforcing network of crossing sets of fibrous strands 2, 4 with fibres 6 needled through the openings between the strands, has the strands of one set arranged wholly on one side. or the other of the other set so that the two sets are not interlaced as in a woven fabric. The strands 2, of which some 2a may be arranged on one side of the strands 4 and the remainder 2b are disposed on the other side of the plane of the strands 4, may be secured to the strands 4 at the crossing points by adhesive which may be thermo-plastic.
Patent GB-1168202-A (GB)
Title: Sheet Feed Apparatus
Inventor: KLEIN ULRICH
IPC: G03D13/00
Filed: 1968-02-08
Abstract: 1,168,202. Feeding sheets. PENTACON DRESDEN KAMERA - UND KINOWERKE VEB. 8 Feb., 1968, No. 6246/68. Heading B8R. Sheets 27 are fed from the top of a stack on a table 5 pivoted at 4, the front of the table being urged upwards by an eccentric disc 9 through a leaf spring 8 so as to bring the top sheet against a feed roller 3 which feeds it over a vertically adjustable table to a transport roller 16. The roller 16 has grooves into which fit spring-urged rollers 21, the presence of a sheet forcing the rollers 21 outwards until an arm 24 is in the path of a stop 25 on a gearwheel 3 driven through a friction coupling and driving the disc 9, so that the front of the table 5, which is lowered to bring the stack below the top of a guide 7, cannot be raised to feed a further sheet until the rollers 21 again enter the grooves.
Patent GB-418172-A (GB)
Title: Improvements relating to settling tanks
IPC: B01D21/18
Filed: 1934-02-26
Abstract: 418,172. Gravity-separation apparatus. DYKES, S. W., 5, Bailey Lane, Ainsworth, Bolton, and ADAMS-HYDRAULICS, Ltd., Peashohn Green, York. Feb. 26, 1934, No. 6253. [Class 111.] A settling-tank has a liquid outlet aperture so formed that the rate of flow of liquid through the tank is kept substantially constant notwithstanding variation of the rate at which liquid is fed to the tank. The tank shown has both an inlet and an outlet aperture 29 with walls which converge upwardly. The apertures may be formed in or provided with a penstock or sluice gate. The floor of the tank is formed with a central longitudinal trough 2 into which settled matter is collected by scrapers 14 carried by chains or belts 11 so as to move transversely to the trough. The chains 11 pass round wheels 10 mounted in frames 7 carried by a gantry 6 travelling on rails 4 on the side walls of the tank. One pair of the wheels 10 is driven by an electric motor 18 on the gantry. The scrapers are attached to the chains by means of trough-shaped bars 12 and are pivoted to the bars so that they can yield when obstructions are encountered. The scrapers are guided over the floor of the tank by rollers 17 on the bars 12, which engage guideways 16 attached to the frames 7. The material collected in the trough is raised by the buckets 25 of an elevator, which is carried by the gantry and driven by the motor 18. The buckets discharge into a trough 26 which may be provided with a rotary screw for delivering the separated material through nozzles 27 to vehicles brought beneath them.
Patent GB-788005-A (GB)
Title: Means for fitting circlips to shafts
Inventor: WALKER THOMAS VICTOR
IPC: B23P19/08
Filed: 1955-03-03
Abstract: 788,005. Circlips. MINING ENGINEERING CO., Ltd. March 5, 1956 [March 3, 1955], No. 6263/55. Class 89(2) [Also in Group XXIII] Circlips 22 of C form are sprung into annular grooves on a shaft 10 and fitted over the shaft by a machine, (see Group XXIII), having a flat plunger 29. Each circlip subtends an angle of slightly more than 180 degrees.
Patent GB-883262-A (GB)
Title: Phosphacyclohexanes and the preparation thereof
IPC: C07F9/6568
Filed: 1960-02-23
Abstract: The invention comprises substituted and unsubstituted 1,3 - dioxa - 5 - phosphacyclohexanes of the general formula <FORM:0883262/IV (b)/1> wherein R1 to R3 are one of the following: a hydrogen atom, substituted or unsubstituted C1-C8 n-alkyl radicals, substituted or unsubstituted aryl radicals, alicyclic, aralkyl or alkaryl radicals, and Y is one of the radicals > PH, > PRa, > P(O)OH, > P(O)ORb and > P(O)Ra in which Ra is a substituted or unsubstituted C1-C6 alkyl radical, a substituted or unsubstituted aryl radical, or an alicyclic radical, and Rb is a substituted or unsubstituted C1-C6 alkyl radical. They may be obtained by condensing in the presence of an acid catalyst and under substantially anhydrous conditions an aldehyde of the formula R3CHO with a compound of the formula R1.CH(OH).Y.CH(OH)R2.  Suitable acid catalysts are the mineral acids, e.g. HCl, HBr, HI and H2SO4 and salts thereof which are acidic under the reaction conditions, e.g. CaCl2 or FeCl3, and organic sulphonic acids, e.g. p-toluene-, benzene-, and methane sulphonic acids. Suitable reaction temperatures are generally from 10 DEG C. to 150 DEG C. and the process may be carried out continuously, semi-continuously or batchwise and at atmospheric or higher or lower pressure.  An inert solvent may be present, e.g. benzene, dioxane, or ether. Examples are given for the production of compounds of the given formula in which (1) Y is \s7 P(O) benzyl and R1, R2 and R3 are each phenyl; (2) Y is \s7 PH, R1 and R2 are - CCl3, and R3 is n-hexyl; (3) Y is \s7 P(O)OH, R1 and R2 are hydrogen, and R3 is cyclohexyl; (4) Y is \s7 P.(CH2)3CH3, R1 and R2 are CH3 and R3 is p-tolyl; and also of the compounds ethyl 2-m-nitrophenyl-4-phenyl - 1,3 - dioxa - 5 - phosphacyclohexan - 5 - oate; 2,5 - dicyclohexyl - 4,6 - dimethyl - 1,3 - dioxa - 5 - phosphacyclohexane and 2 - benzyl - 4,6 - dihexyl - 5 - phenyl - 1,3 - dioxa - 5 - phosphacyclohexane. The products are useful in extracting metal values, e.g. uranium values, from ores containing such values.  Bis (1-hydroxyethyl) butyl (or cyclohexyl) phosphine is obtained by reacting n-butyl (or cyclohexyl) phosphine with acetaldehyde in ether while passing dry HCl gas through the solution; ethyl (1-hydroxy-benzyl) hydroxymethyl phosphinate is obtained by treating an aqueous solution of 1-hydroxy-benzyl hydroxymethyl phosphinic acid with an aqueous solution of silver nitrate, separating the silver salt formed and then treating it with ethyl iodide in acetonitrile; bis (1-hydroxy-heptyl) phenyl phosphine is obtained by reacting phenyl phosphine and heptaldehyde in dry ether while passing dry HCl into the solution.
Patent GB-581357-A (GB)
Title: Improvements in and relating to electric contact or like elements
IPC: B23K35/02
Filed: 1945-03-14
Abstract: 581,357. Switch contacts. MALLORY METALLURGICAL PRODUCTS, Ltd. March 14, 1945, No. 6334. Convention date, March 14, 1944. [Class 38 (v)] [Also in Group XXII] Contact arms and sliding contacts have a hard refractory facing member united by fusion with a backing member having a different coefficient of expansion, through a stress equalizing member having approximately the same coefficient of expansion as the facing member and dominating proportions of molybdenum. The facing member 10 is brazed or welded to the stress equalizing member 12 at 13 the backing member 11 being then affixed by brazing or welding at 14. Contact arms, may also be similarly constructed.
Patent GB-363907-A (GB)
Title: Improvements in shoe clamping devices for pneumatic sole pressing moulds
IPC: A43D25/06
Filed: 1931-02-28
Abstract: 363,907. Boot - making machines. MICHALK, O., 10, Kroenertstrasse, Freital, Dresden, Germany. Feb. 28, 1931, No. 6356. Convention date, March 24, 1930. [Class 17 (i).] Sole-laying.-Relates to multiple pneumatic sole-laying presses, and consists in a construction facilitating access to the shoe and providing that each pressure mould carrier constitutes, with its pressure lever and control members, a self-contained unit. The pressure lever 3 has a rearwardlyextending arm carrying the device for locking the arm in pressure-applying position, and co-operating members are carried by the machine frame to actuate the locking device. The lever 3 is pivoted to a bracket 6 fixed to the carrier for the inflatable bag 11, and carries a pawl 4 co-operating with teeth on an arm 5 fixed to the bracket. At the workchanging position, the pawl 4 is tripped by a fixed cam 15. When work has been changed, the lever is depressed by a handle 14 and a fixed cam or a push rod 10 engages a roller 7 to press the shoe firmly down on to the pad. A spring 5<1> urges the lever 3 counterclockwise.
Patent GB-1470017-A (GB)
Title: Reciprocating table sawing machines
IPC: B23D55/02
Filed: 1976-02-16
Abstract: 1470017 Sanding DEXTER & CO (HIGH WYCOMBE) Ltd 16 Feb 1976 [14 Feb 1975] 6374/75 Heading B3D [Also in Division B5] A sawing machine, e.g. a band saw 11, comprises two reciprocable tables 15, 16 each to support and to advance workpieces 17, 18 past a saw 14 common to both tables to cut and also to retract workpieces after having been cut, the tables being driven out of phase so that as one table is advanced the other is retracted. The two tables 15, 16 are mounted on guide rails 35, 36, one on each side of the saw 14, and provided with a driving mechanism which retracts one table 16 while the other table 15 advances the workpieces 18 past the saw 19 (see Fig. 4). The guide rails 35, 36 are connected by a cross member 39 which slides on cross rails 40 perpendicular to the guide rails 35, 36 (arrow 37, 38 in Fig. 4). After each cutting stroke the rails 35, 36, and with them the tables 15, 16 and the workpieces 17, 18, can be moved transversely to a position such that the workpieces just retracted will extend across the line of sawing by an amount equal to the width of the workpiece to be sawn off while the workpiece just having been sawn is spaced from the saw band 14. Furthermore an angle bracket or frame 22 advances the workpieces 17, 18 with respect to the table 15, 16 transversely to the rails 35, 36. Transversely movable tools, such as sanding bands 42, 43 or groove cutting devices may be mounted to move with the tables in order to machine the workpieces additionally during the retraction phase. There may be a pair of centres on each table to support the workpieces at their ends and to rotate them. The driving centre may have indexing means so that a piece of round timber may be shaped as desired, e.g. square, hexagonal &c. Each table 15, 16 may have an upper workpiece supporting part 23 which is tiltable by an hydraulic or pneumatic actuator 24 during alternate cutting strokes to effect the cutting of angled strips from a workpiece. All the movements may be automatically controlled.
Patent GB-159506-A (GB)
Title: Improvements in and relating to carburetters for internal combustion engines
IPC: F02M7/12
Filed: 1921-02-26
Abstract: 159,506. Pifarre, J. Feb. 26, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Spray carburettors.-A mixture of constant proportions is obtained by providing a suctionactuated valve in or adjacent to the nozzle, the lifting of the valve either decreasing the fuel supply or, when both air and fuel are supplied to the nozzle, increasing or decreasing such air supply. In the form shown in Fig. 3, fuel is supplied to the nozzle 12<a> during slow-running through ducts 18, 19, the duct 18 being closed by a ball valve 17 when the suction increases. In modifications, (1) a plug beneath the nozzle is provided with a central uncontrolled fuel duct and with two outer ducts, the fuel supply to which is cut off by ball valves as the suction rises; (2) a short pipe having a spherical head provided with three fuel outlets is mounted in the fuel inlet pipe beneath the nozzle, two of the outlets being cut off when the tube is lifted by suction into contact with the bottom of the nozzle; (3) the nozzle bore is coned at the base and the fuel supply is controlled by a ball valve 23, Fig. 4, which is provided with a fuel passage 13b and with a stem 12b provided at its upper end with a ball 22 upon which the suction acts. Fig. 7 shows a construction in which air is supplied through the central bore of the nozzle when the suction is sufficient to raise a ball valve 17<c>, the fuel being supplied through ducts 18<c>, 19<c>. In modifications, (1) the valve 17<c> is provided with a stem and ball as shown in Fig. 4, and the air inlet pipe is U-shaped to trap leaking fuel, (2) the valve is situated in a conical portion of an inverted U-shaped air pipe which discharges into the base of a nozzle fed with fuel through a calibrated orifice. The ball valve may have holes bored through it to allow the passage of a small amount of air or to allow fuel which has leaked past the valve to be used up in starting. In a further modification, air is supplied to the nozzle at low speeds through a central pipe 26, Fig. 5, the air supply being cut off at high suctions by a ball valve 27 which closes the end of the pipe 26.
Patent GB-124731-A (GB)
Title: Improved Stay Bolt Structure for Boilers.
Inventor: MENNIE ROBERT SAMUEL
IPC: F22B7/16
Filed: 1919-03-17
Abstract: 124,731. Mennie, R. S. March 22, 1918, [Convention date]. Stays.-The head of a flexible stay-bolt 7 having a ball-andsocket connexion with the boiler plate is covered by a cap 14 welded to the plate. The cap may be fitted with a screwed plug. A cap may screw on to a sleeve welded to the plate around the head.
Patent GB-495681-A (GB)
Title: Adjustable door handle construction
IPC: E05B3/00
Filed: 1938-03-03
Abstract: 495,681. Attaching handles to spindles. GRAVESEN, C. C. March 3, 1938, No. 6692. Convention date, March 3, 1937. [Class 44] In a door handle construction having two handles 1 fixed to stems 7 adapted to be coupled against relative rotation by the non-circular bore of a bush 15 integral with or forming part of a lock mechanism, the handles are slidably mounted in rose plates 5 and coupled axially by a screwed pin secured to one stem and engaging a tapped hole in the other, axial displacement of the junction of the stems relative to the bush being prevented by stop means. The stop means consists of collars 16 abutting the bush and pins 18 passing through the stems. Assembly is carried out by removing the pin 18 from one of the stems, passing that stem completely through the bush, screwing the stems together an amount depending on the thickness of the door, and then sliding into position and replacing the pin. When the handles are made of pressed material, such as artificial resin, the stems are preferably moulded therein.
Patent GB-737555-A (GB)
Title: Process for carrying out chemical reactions in gases and aerosols
IPC: B01J3/08
Filed: 1951-03-21
Abstract: Hydrocarbons are formed by subjecting a steady or intermittent flow of a mixture of carbon monoxide and hydrogen to thrusts of shock waves periodically passing through the mixture at supersonic speed (see Group III).ALSO:<PICT:0737555/III/1> <PICT:0737555/III/2> Chemical reactions are performed by a subjecting a steady or intermittent flow of a non-detonating mixture of the reactants in gaseous or aerosol form to thrusts of shock waves periodically passing through the mixture at supersonic speed.  In the apparatus shown in Fig. 3 the reactants enter at 8 and leave at 10, the shock waves produced being reflected at the surface 11 and returning through the reaction space as a convergent wave front. In the apparatus of Fig. 5 the reactants flow from 25 to 26 as a thin layer adjacent the wall 27 and are acted on by shock waves produced in the casing 24; additional energy is supplied by an electromagnetic oscillating device 19, 20 which intensifies the shock waves; the space in the casing outside the actual reaction zone may be filled with a gas of specific gravity lower than that of the reactants. Catalyst may be attached to the walls of the reaction zone or suspended in the reactants.  Additional exothermically reacting substances (e.g. a mixture of fuel and air) may be added to the reactants to produce or intensify the shock waves or to provide a higher temperature.  Reactions may be carried out at pressures above atmospheric, and may be controlled so as to obtain intermediate products.  In examples, mixtures of coal dust and air are introduced through a restricted inlet at one end of a tube open at the other end, shock waves being formed at the outlet from the tube and passing back through the reactants; gas containing carbon dioxide, carbon monoxide, hydrogen and nitrogen is produced.  Reactions between carbon monoxide and hydrogen to form hydrocarbons and between nitrogen and hydrogen in the presence of catalyst to form ammonia are also referred to.