baber/WOPTO huggingface dataset:
Patent GB-1146096-A (GB)
Title: Ac-fed measuring device for controlling an adjustment member
Inventor: RIEDLBERGER LUDWIG
IPC: G05B1/02
Filed: 1967-05-01
Abstract: 1,146,096. Automatic temperature control systems. LANDIS & GYR A.G. May 1, 1967 [June 22, 1966], No.20110/67. Heading G3R. An automatic temperature ventilation or air conditioning control system has the sensing and setting members fed with A.C. and connected by a single pair of heads to a differencing circuit which controls the restoring circuit. Positive half cycles from an A.C. supply 4 flow serially through a thermistor 9 of either sign, diodes 11, 16 and resistor 17, and negative half waves through a setting resistor 10, diode 12, resistor 18 and diode 15, the voltages across resistors 17, 18 charging capacitors 21, 22 in series opposition, the difference being applied to a transistor amplifier 26, energizing a relay 39 or 41 according to the sense of the error. For proportional control, a variable resistor (42) Fig. 2 (not shown) driven from a heating fluid-flow valve motor may be series connected with resistor 17. A further resistor (44) may adjust the dead zone. A further circuit 2 may be connected across terminals 45, 46 for combined heating and cooling systems. Resistors 9, 10 may be multiplied and may be of relatively high resistance to resistors 17, 18. The amplifier 26 is supplied from a potentiometer comprising a resistor 31 and diode 32, the diode having preferably the same transmission characteristic as transistor 33 to assist stabilization.
Patent GB-1291204-A (GB)
Title: Device for regulating the pressure in rear wheel brake cylinders
IPC: B60T8/26
Filed: 1971-04-19
Abstract: 1291204 Fluid pressure brakes TOYOTA JIDOSHA KOGYO KK 19 April 1971 [22 Jan 1970] 20179/71 Heading F2F A regulating device for controlling the braking pressure to the rear braking cylinders of a vehicle to provide differential braking between front and rear wheels comprises a housing 11 having an inlet 11a and an outlet 11b and defining first and second fluid chambers 21, 22 which can be placed in communication with or isolated from each other by a valve formed by a piston 12 which seats against a valve seat 16 and a second valve formed by a piston 74 having a surface 14a can close the outlet 11b, this cut-off action occurring when the differential pressure due to the difference between master cylinder and wheel cylinder pressures exceeds a predetermined value dependent on a spring 15.
Patent GB-167181-A (GB)
Title: Improvements in or relating to devices for rendering transparent lacquer impressions or layers applied to paper
IPC: B31B50/00
Filed: 1921-07-27
Abstract: 167,181. Poeppel, O. July 28, 1920, [Convention date]. Envelopes.-Apparatus for melting a layer of lacquer applied to paper and thus rendering the paper transparent comprises an externally heated horizontal channel a having its ends sloping downwardly so that the heated air is retained in the horizontal part and the heat economized. The paper to be treated, such as so called window letter envelopes, is conducted through the channel by a conveyer band b.
Patent GB-788817-A (GB)
Title: Improvements in or relating to heating devices for the interior of motor vehicles
IPC: B60H1/02
Filed: 1955-07-12
Abstract: 788,817. Ventilating vehicles. UNITED DAIRIES (LONDON), Ltd., and TOWNDROW, P. A. May 30, 1956 [July 12, 1955], No. 20197/55. Class 137 [Also in Group XIII] In a vehicle heating device, warmed air collected from behind the fan-cooled radiator of a liquid-cooled internal combustion engine (not shown) is further heated in passing through a first heat exchanger comprising a tube 11 secured in thermal contact with the engine exhaust gas manifold 10 and, before passing to the vehicle interior, the air receives further heat in a second heat exchanger heated by hot liquid from the vehicle radiator. In the form shown the second heat exchanger comprises a casing 22 containing a tube coil connected into the engine water jacket. The warm air collected from behind the radiator, flows through the tube 11 to be heated by the engine exhaust gas and thence through a rubber hose 31 and branch pipe 30 to and through the heat exchanger casing 22 and thence through a branch 32 or a downwardly facing opening in the wall of casing 22 to the vehicle space e.g. the driving cabin of a lorry and also through a pipe or nozzle 44 to the vicinity of the wind screen. A butterfly valve controlled by a handle 37 controls the amount of air passing to the second heat exchanger and the flow of engine coolant to the heating coil in the casing 22 may be regulated by a cock 26.
Patent GB-733281-A (GB)
Title: Improvements in supporting means for electro-mechanical filters
IPC: H03H9/135
Filed: 1953-07-21
Abstract: 733,281. Electromechanical filters. COLLINS RADIO CO. July 21, 1953 [Aug. 14, 1952], No. 20251/53. Class 40 (8). An electromechanical filter comprises a number of discs 24 joined by peripheral coupling rods 26, the end discs being connected to supporting-rods 22, 23 which extend between upright members 18, 19, 20, 21. The discs and coupling wires are made of nickel or other material having a high mechanical Q. The end discs are coupled by magnetostrictive coupling wires 29, 30, attached to their peripheries, to input and output coils arranged within cylinders 13, 14. The cylinders 13, 14 are supported by clamps 11, 12 which also serve to support polarizing magnets 16, 17. The filter operates in manner similar to that described in Specification 722,664.
Patent GB-847529-A (GB)
Title: Improved polymerization method and apparatus therefor
IPC: C08F2/00
Filed: 1957-06-27
Abstract: Unsaturated hydrocarbons are polymerised in a liquid hydrocarbon solvent with a catalyst under conditions of temperature and pressure at which the solvent exerts limited solubility for the polymer produced, the polymer recovered as a separate polymer rich phase and vaporized hydrocarbon and unreacted monomer removed at a rate sufficient to maintain the required temperature.  The unsaturated hydrocarbon is preferably introduced tangentially into the reaction chamber at high velocity, e.g. into a vortex of the solvent containing a finely divided solid catalyst suspension.  Specified olefins are ethylene, propylene and butene-1, and specified solvents are cyclobutane, cyclopentane, cyclohexane, n-butane, n-pentane, n-hexane, isobutane, isopentane, isohexane and isooctanes. It is preferred to use as catalyst the low pressure chromium oxide polymerisation catalyst.  Apparatus for carrying out the process is described.
Patent GB-1199322-A (GB)
Title: Improvements in or relating to Nuclear Reactors
Inventor: BURTON WILLIAM ROBERT
IPC: G21C11/02
Filed: 1967-05-02
Abstract: 1,199,322. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 19 April, 1968 [2 May, 1967], No. 20372/67. Heading G6C. A steam generating nuclear reactor shield is formed by tanks containing a solution of nepturium nitrate in nitric acid. Plutonium 238 is formed and separated from the nepturium solution. The fuel assemblies 11 are suspended in the pressure tube 15 within the heavy water moderated core 10. The shield tanks 20 are filled with steel shot and light water, the tanks 21, 22 contain light water and the tanks 23 hold a 1 M solution of nepturium nitrate in 0.3 M nitric acid. The circuit connected to 23 contains a unit 24 for removing gaseous radiolytic products and fission products from the nepturium solution, a cooler 25 and a chemical processing plant 28. In the tanks 23, neutron absorption converts nepturium 237 to nepturium 238 which either decays to plutonium 238 or is fissioned. In alternative unform the plutonium may be dissolved in an organic solvent.
Patent GB-233580-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M5/02
Filed: 1924-01-31
Abstract: 233,580. Stromberg Motor Devices Co., and Mock, F. C. Jan. 31, 1924. Spray carburettors. - In a carburettor, particularly for use on aircraft, wherein the float-feed apparatus surrounds the mixing chamber or chambers, the floats and their actuating-mechanism are so designed that the fuel level is maintained constant during a predetermined degree of fore-and-aft tilting, but is raised by a further inflow of fuel upon said degree of tilting being exceeded. The carburettor comprises a casing consisting of a lower part 23 .and an upper 24 joining along the line 25 which is above the normal fuel level x-x. Extending upwardly through the casing are two carburettor barrels 27, each having a Venturi tube 28, a main nozzle 29 and a butterfly throttle valve. The float chamber substantially surrounds the barrels 27 and comprises front and rear areas 34, 35 of about the same capacity connected by a tube 36 along the fore-and-aft, axis of the carburettor. This tube quickly conveys fuel from one area to the other when tilting occurs. Two drum-shaped, floats 37 of equal size are located in the areas 34, 35 and are attached to arms 38 of a yoke 39 over a pin 43 in which the fuel valve 42 is hooked. The yoke is pivoted on pins 44. The valve 42 is guided in a tubular plug 45 and engages a hard metal seat 46 at the lower end of the plug. Fuel enters at 57 a chamber 54 containing a gauze strainer and leaves by way of a tube 58 to pass along a conduit 47 to the valve seat 46. The normal fuel level x-x is slightly above the centres of the floats 37 to ensure an ample supply of fuel. The floats are so designed that the force required to close the valve 42 is approximately fourteen-twelfths of the force exerted through its arm 38 by one float when fully submerged. If the degree of tilting is such that both floats are in the fuel, the decreased buoyancy of one float is made up by the increased buoyancy of the other, and the valve remains closed. When, however, this degree is exceeded and one float is wholly out of the fuel, the other float, although completely submerged, is incapable of holding the valve closed. Fuel therefore enters the chamber and the level is raised. The floats are braced internally by tubular struts 60. Fuel is supplied to the nozzles through ducts 61 opening into the chamber close to the medium plane. An arrangement of two of the carburettors in a typical V type aeronautical engine is described and shown in the Specification.
Patent GB-802406-A (GB)
Title: Improvements in brushes
Inventor: LEWIS STANLEY
IPC: A46B7/10
Filed: 1956-07-03
Abstract: 802,406. Brushes. KLEEN-E-ZE BRUSH CO., Ltd. June 17, 1957 [July 3, 1956], No. 20603/56. Class 19. U-section, bristle-supporting annuli 6 or a strip are secured on a resilient core 10 by longitudinally stretching the core to reduce the cross-section, passing the annuli 6 and spacers 11 onto or winding the strip in a helix about the core, and then releasing the core.
Patent GB-842169-A (GB)
Title: Improvements in or relating to friction drop hammers
IPC: B21J7/44
Filed: 1957-07-01
Abstract: 842,169. Drop hammers. MASSEY Ltd., B. & S., WELLS, L. W., and MIDDLETON, B. April 17, 1958 [July 1, 1957], No. 20633/57. Class 83 (4). An automatic friction drop-hammer has its tup raised by a friction-lifter 11 controlled by a pull-cord 12 passing around a revolving shaft and held in its raised position by a hold-up band brake, the hold-up brake and the pull-cord being controlled by a foot-treadle 14, which is arranged to impart long or short strokes to the tup, thiough a fluid-pressure control system including a piston 30 with a hollow piston-rod 31 through which extends the pull-cord having an adjustable stop 32 for engagement by the piston-rod to pull the cord and so lift the tup, and adjustable stop-means 34, 49 are provided for positively arresting the movement of the piston thereby to release the pull on the cord and terminate the upstroke. The foot treadle is of the kind described in Specification 813,045. When the treadle 14 is depressed to position S it actuates a hold-up air control valve 16 which controls through a relay valve 28, an air cylinder 21 to release the hold-up brake and allow the tup to fall. A trip-block 43 driven by a chain 55 to reproduce the movement of the tup, also drops and at the end of its stroke actuates a pick-up valve 39 controlling a relay valve 36 which opens to admit air above differential piston 30 and lower it. The piston-rod 31 thus engages adjustable stop 32 and pulls the cord to initiate lifting of the tup. Movement of the piston-rod is limited by the short-stroke stop 34, which is adjustable by a knob 67, Fig. 5 (not shown), and the tup is again released. During upward movement of the tup and the trip block the pick-up valve 39 is disengaged to release pressure above the piston 30 after a delay. When this pressure is released the piston 30 is raised by air pressure acting continuously on its underside. For long strokes treadle 14 is depressed to position L and actuates stroke control valve 17 to energize cylinder 33 and thus withdraw the stop 34. Movement of the piston-rod 31 is then limited by long stroke stop 49 which is adjustable by a handle 71, Fig. 5 (not shown). The position of the pick-up valve 39 is adjustable by a knob 58, Fig. 5 (not shown). For manual control the trip-block 43 is prevented from engaging the pick-up valve by a stop operated by a handle 32, Fig. 11 (not shown), or the pickup valve is rendered inoperative by a stop-valve 40a; the lift of the tup is then controlled manually by a handle 13 on the pull-cord. Specification 842,877 also is referred to.
Patent GB-1308752-A (GB)
Title: Extrusion die
IPC: B21C25/02
Filed: 1971-04-19
Abstract: 1308752 Alloy compositions METALLWERK PLANSEE AG & CO KG 19 April 1971 [3 Feb 1970] 20634/71 Heading C7A An extrusion die consists of 40-98% by volume of Molybdenum and/or tungsten, the balance being a ceramic oxide(s) which is stable up to 1700‹C. Preferably the oxides may be those of Aluminium, thorium, beryllium, titanium, magnesium, calcium, chromium, cerium, tantalum (Ta 2 O 5 ) silicon or yttrium which are used either individually or as mixed oxides e.g. spinels and silicates. The Molybdenum and/or tungsten may be preferably 60-92% by volume. Components of the alloy are made by powder metallurgy during which the ingredients are mixed as powders, sintered in a protective gas atmosphere e.g. argon or hydrogen, at high temperature c. 1700‹C. The raw products are then machined or spark eroded into the desired shape. Intermetallic compounds stable up to 1700‹C and additional metals e.g. titanium or zirconium may also be included in the die composition to increase its heat resistance.
Patent GB-1191111-A (GB)
Title: A Method of Making Ladder Joints
IPC: E06C7/08
Filed: 1967-05-03
Abstract: 1,191,111. Ladder joints. R. D. WERNER CO. Inc. 3 May, 1967 [9 Aug.; 1966], No. 20635/67. Heading A6L. [Also in Divisions B3 and F2] A ladder joint is formed using a one- or two-part ferrule with a peripheral flange at the inner end, and a further peripheral flange at the outer end, to grip bobh sides cf the stile, the outer flange either being formed by a vertical or horizontal press die (Figs. 1, 10, not shown) or constituting a preformed flange on the second part of a two-part ferrule (Figs. 20, 24, not shown). The inner flange may be formed in the ferrule before it is placed on the end of a hollow rung (Figs 1-9, not shown), or when it is on the end, before the rung/stile joint is formed (Figs. 11-14, not shown). A modification of the former type is shown in Fig. 15, and a further modification in Figs. 18, 19 (not shown), for use with a hollow stile. In the two-part ferrule (Figs. 20-24), the non flanged end 427 of the outer part is forced inwardly against a shoulder of the inner part, and is deflected in order to deform the rung and to grip it.
Patent GB-262025-A (GB)
Title: Improvements in the production of fabrics having a worsted-like appearance
IPC: D03D15/00
Filed: 1926-08-23
Abstract: 262,025. Elkan, E. May 17, 1926, [Convention date]. Mixed fabrics ; printed fabrics.-A fabric having a worsted-like appearance is produced by weaving a fabric with fine cotton warp threads a and thicker carded wool weft threads b, the warp thread floating over three or more weft threads. A worsted like design is then printed on the warp side of the fabric. The stripes of the printed design are inclined to the long cotton floats, and by using a light cotton warp and very dark printing, the fine line and twill effects of worsted fabrics are simulated.
Patent GB-392021-A (GB)
Title: Improvements in or relating to photographic sound records and to methods of reducingground noise during reproduction of sound from such records
IPC: G11B5/86
Filed: 1932-07-25
Abstract: 392,021. Photographic sound-records. RADIO CORPORATION OF AMERICA, 570, Lexington Avenue, New York, U.S.A.- (Assignees of Eldred, B. E. ; 210, Madison Avenue, New York. U.S.A.) July 25, 1932, No. 20910. Convention date. Sept. 15, 1931. [Class 40 (ii).] A film sound-record comprises a base 5 and a photographic imagebearing emulsion layer 8, having superposed thereon a protective coating 7 which is of such thickness that its outer surface is situated beyond the focal point of the objective lens of a sound-reproducing optical system 4. The coating 7 may be made of varnish or collodion or comprise a,n extra film cemented to the emulsion side of the film 5. Bv this means dust 6 and scratches upon the film are spaced from the focal point of the optical system by a distance sufficient to reduce the ground noise which would otherwise be produced during reproduction of the record.
Patent GB-1434364-A (GB)
Title: Corrugated sheet material
IPC: F28F3/02
Filed: 1972-05-05
Abstract: 1434364 Making heat exchangers; jointing COVRAD Ltd 2 Aug 1973 [5 May 1972] 20931/72 Headings B3A and B3V Corrugated metal foil, e.g. a heat-exchange element, is made more rigid to facilitate handling by joining together the folds of adjacent corrugations by means which when applied is non-rigid. A bead of adhesive may be driven or extruded to join open or closed corrugations of aluminium foil, Figs. 1 and 2 (not shown). Alternatively, the sides 10 may be joined by wire or a strip of aluminium foil, fabric or plastics attached by an adhesive which may be pre-coated on the wire, &c. The joining medium may be received in recesses (20), Fig. 4 (not shown), and self-adhesive tape may be used. Feed-rollers may supply the foil to adhesive-applying rollers 15, Fig. 3, which may rotate in either direction. Surplus adhesive 16 is removed by wipers or rollers 18 leaving beads 17 which are cured by heating at zone 19 before passing between springs 14 for keeping the corrugations closed.
Patent GB-689651-A (GB)
Title: Improvements in or relating to driving belts for power transmission
IPC: F16G5/16
Filed: 1950-08-24
Abstract: 689,651. Driving-belts. BYLES, R. B. Aug. 23, 1951 [Aug. 24, 1950],.No-. 20934/50. Class 80 (i). A V-belt comprises twin side-by-side belts e, e<SP>1</SP> each consisting of overlapping strips of material such as rubber-impregnated fabric, and the twin belts are interconnected by struts secured by rivets or the like to the strips. The rivets may be either round or flat-sided in section. The inner faces of the belts are perpendicular to the struts, each of which comprises two shouldered channel plates f passing through slots or between lugs in abutment plates g which prevent angular movement of the strips. In a modification, Fig. 2 (not shown), each strut comprises two central plates which are cranked to form abutment plates embracing the strips on three sides. Alternatively a single central plate may connect two channel-shaped end members embracing the strips. In a further modification, Fig. 1, a strut comprises upper and lower flat plates to which are welded respectively W and M shaped pieces forming vertical abutment plates.
Patent GB-1224136-A (GB)
Title: Improvements in or relating to connection devices for pipe and rod elements
Inventor: DERF JEAN LE
IPC: F16L15/06
Filed: 1969-04-24
Abstract: 1,224,136. Pipe &c. joints. VALLOUREC USINES A TUBES DE LORRAINE-ESCAUT ET VALLOUREC REUNIES. 24 April, 1969, No. 21018/69. Heading F2G. Two elements 1, 2, e.g. tubes or rods, are each provided with a screw-threaded end and assembled in coaxial abutment by a coaxial sleeve 3 having screw-threads in engagement with those of the elements. The screw-threads of the elements and sleeve are substantially cylindrical threads having the roots thereof parallel to the common axis of the abutted elements and the flanks thereof perpendicular to that axis, and a selected number of adjacent threads of each element are cylindrical threads of known form and constant height adapted to engage similar adjacent threads positioned at an appropriate side of the transverse median plane of the sleeve and the threads of the elements and sleeve which form continuations of threads of constant height progressively diminish in height substantially to zero at the approach to at least one end of the screwthreaded length whereby an element and sleeve are connected together. When the connection is completed element threads of constant height are in screw engagement with sleeve threads of constant height and element threads of progressively diminishing height are in screwed engagement with sleeve threads of similarly progressively diminishing height, the forces generated to hold the elements in abutment being carried by the engaged perpendicular flanks of the threads without the creation of radial force components. The sleeve 3 may be located externally, as shown, or internally of the elements 1, 2.
Patent GB-423435-A (GB)
Title: Improvements in or relating to devices for automatic regulation of the water-content of material in sheet or web form
IPC: D21G9/00
Filed: 1933-07-26
Abstract: 423,435. Fluid - actuated valves. BRITISH ARCA REGULATORS, Ltd., Windsor House, Victoria Street, London.- (Assignees of Soc. Francaise des Regulateurs Universels Arca ; 164, Rue de la Croix-Nevert, Paris) July 26, 1933, No. 21065. Convention date, July 26, 1932. [Class 135] [See also Groups VIII and XIII] Valves controlled by pilot or relay.-The watercontent of paper or other sheets or webs is regulated automatically by hydraulic regulator actuated conjointly by two or more factors associated with drying. The damping member j of the servomotor H is jointly affected by the steam pressure in the main D which supplies the dryer rolls A, B, a tube m communicating with a chamber m<1> containing bellows m<2> &c., and by the web tension, a balanced roller N carried by a shaft O &c. being connected by a spring o &c. with the member j. Liquid is supplied at k and flows continuously from an orifice i<2> beneath the member j which thus varies the pressure in the cylinder H and actuates the valve E in the main D. If the paper is deflected abnormally by the roller N, a rod p<2> encounters a projection j<2> and causes the valve E to close. In modifications ; the piston G is connected with a rheostat to control the speed of the machine, and with the member to reduce hunting; or the piston G is connected with the valve E, with a rheostat controlling the speed of the machine and by wires and a cam &c. with a valve in the pipe supplying water to the pump which feeds the flow-box of the paper-making machine.