baber/WOPTO huggingface dataset:
Patent GB-1469801-A (GB)
Title: Tool for screwing-up fastening members such as nuts and bolts
IPC: B25B21/00
Filed: 1974-03-13
Abstract: 1469801 Power operated screwing-up tools MITSUBISHI DENKI KK and TERAUCHI SEISAKUSHO KK 13 March 1974 11263/74 Heading B3N A power operated screwing-up tool such as a nut runner is provided with means for counteracting the reaction torque produced in a screwing-up operation so as to prevent its transfer to an operator, the drive is provided from a motor through bevel gears 3 and 4, a harmonic drive mechanism HD and a planetary gear system 20-25 to a holder 31 for a threaded member 32, 43 the whole drive assembly being housed in sectional casing 6, 49, 54 from the operative end of which there extends a sleeve portion 36 which shrouds the screwing-up element 31 and is provided with arms 38 for engagement with a part of the stationary fixing to which the threaded member 43 is to be attached. Alternatively the sleeve portion may be provided with an opening of elliptical or polygonal configuration which engages a corresponding washer situated beneath the member 32 being screwed-up and thereby the reaction torque is absorbed by the casing in opposition to the screwing torque provided by the socket 31. In a further embodiment the threaded fastener 43 is provided with an end projection which is adapted to shear-off when the required fastening torque is reached, spring biased ejector means 74, 73, 64 or 73, 78, 77 and 82 being provided to discharge the sheared portion out of the socket. To facilitate ease of alignment between the socket and the fastener the sleeve 36 on the end of the casing is secured thereto by co-operating recesses and projections 35b, 36a which permit a predetermined angular displacement of the anti-rotation device 38.
Patent GB-129125-A (GB)
Title: Improvements in Smoke Consuming Fireplaces, Stoves or the like.
Inventor: RAMSDEN BENJAMIN
IPC: F24B1/18
Filed: 1918-07-10
Abstract: 129,125. Ramsden, B., (Representatin, of Ramsden, A.). July 10, 1918. Open fire-places; smoke, preventing and consuming.-A smoke-consuming fire-place comprises a hopper C' with a lid C<2>, and one or more flues P affording communication between the hopper C' and the rear of the fire-grate, where a chamber 0 is formed above a series of channels between ribs R. The lower ends of these channels and ribs are cut away, forming a " vortex " chamber R<1> at the entrance to the main flue F, in the lower portion of which is a baffle F<1>. The smoke and fumes from the hopper pass down the flue P, into the chamber, and between the ribs R; they are met by a stream of burning gas and air from the fire-place, and are consumed in the chamber R' before entering the flue F. Air is admitted by side flues H.
Patent GB-420569-A (GB)
Title: Improvements in electric hot plates
IPC: H05B3/68
Filed: 1934-04-14
Abstract: 420,569. Electric hot-plates. JUUL, J., Allegade, Haslev, Denmark. April 14, 1934, No. 11306. [Class 39 (iii)] [See also Group XXXVI] A low - voltage hot plate upon which a vessel tc be heated is placed consists of a thin metal plate a cut to form a zigzag or spiral strip terminating in projections d, e, which are con. nected to the secondary terminals of a transformer. The plate is freely sup. ported upon an annular member o. Projections g around the plate are bent over the outer edge of the cupshaped holder h supporting a body of heatinsulating material i. The centre of the plate may be pressed by a spring against the vessel to be heated.
Patent GB-920449-A (GB)
Title: Improvements relating to multi-pass steam boilers
Inventor: BRAND FREDERICK DOUGLAS
IPC: F22B7/12
Filed: 1960-03-31
Abstract: 920,449. Return tube steam boilers. SPENCER-BONECOURT-CLARKSON Ltd. March 30, 1961 [March 31, 1960], No. 11334/60. Class 123 (2). In a return tube boiler comprising a furnace tube 5 connected through a first gas turning space 7 lined with refractory blocks and closed by a door 21 to a set of fire tubes 18 which convey the gases to a second gas turning space 4 whence a second set of fire tubes return the gases to a third gas turning space 8 provided with an outlet to a chimney 9, back-flow of gases through the furnace tube due to sudden combustion of pockets of fuel in the rear part of the tube or in the gas turning space 7 is prevented by providing an explosion door between the spaces 7, 8. The door consists of a block 15 which fits loosely into an aperture 14 provided in the upper horizontal plate 11 of the partition separating the spaces 7, 8, the block having a supporting flange 15A which rests on the plate whilst the latter has welded to it a metal strap 16 which extends across the block 15 and limits its upward movement. Sudden pressure occurring in the space 7 lifts the block 15 to vent gas to the chimney 9. When the pressure falls, the block 15 drops to close the aperture.
Patent GB-591694-A (GB)
Title: Improvements relating to photographic cameras
IPC: G03B19/18
Filed: 1945-05-04
Abstract: 591,694. Photographic roll film cameras. AVIMO, Ltd., and STEVENS, H. C. M. May 4, 1945, No. 11393. [Class 98 (i)] Spool case locating means for cameras consists, for each case c, of a set of, typically three, lugs b secured in annular arrangement on a partition a in the body of the camera which separates the film storing chamber from the driving means, and one or more projections d on the spool case adapted to engage one of the lugs to prevent rotation of the cage. Two projections d may embrace the lug as shown or a single projection may engage a slot in the lug.
Patent GB-125843-A (GB)
Title: Improvements in or relating to Carburettors for Internal Combustion Engines.
Inventor: BUTT CHRISTOPHER KEMPSTER
IPC: F02M9/08
Filed: 1918-07-12
Abstract: 125,843. Butt, C. K., Hindley, L. A., and Hindley, H. D. July 12, 1918. Spray carburettors; vaporizers, external.-The choke-tube E rotates about a vertical axis, and its ends are closed by curved plates having vertical slots which register more or less with slots in corresponding plates B<2>, B<3>, in the casing, and so controls the air and mixture. The choketube is actuated by governor or by hand, and carries a perforated cap fitting over the nozzle H so as to vary the fuel supply. An extra-air inlet may be provided on the engine side of the carburettor and may be controlled simultaneously with the choke-tube. E. In a modification, the choke-tube rotates about its horizontal axis, the end plates being flat in this case with radial slots. The mixture passes through an exhaust-heated vaporizer, comprising a casing A<2>, and a central core K having radial helical blades K<1>.
Patent GB-1304584-A (GB)
IPC: B41M1/12
Filed: 1970-03-10
Abstract: 1304584 Stencil printing FUJI PHOTO FILM CO Ltd 10 March 1970 [11 March 1969 11497/70 Heading B6C [Also in Division D2] A stencil is placed in contact with an ink sheet, bearing an ink which is solid at ambient temperatures and can be rendered fluid by heating, and the ink is heated in a printing so that the ink becomes fluid, passes through the stencil, and produces an imprint. Preferably the ink sheet and stencil are mounted on a rotary cylinder of the machine, are passed through rollers with a sheet to be pivoted or are placed on a flat surface to which a roller is applied. The ink may contain carbon black, phthalocyanme blue, prussian blue, cadmium yellow or an azo dye, dispersed in a carrier which may be a wax, a thermoplastic resin or an alcohol with more than 16 carbon atoms. Alternatively the ink may be a colourless one which gives an imprint on clay-coated paper, containing for example 3,3-bis(p-dimethylamino phenol)-6-dimethylamino phthalide, rhodamine # lactone, fluorane, leuco auramine or benzoyl leuco methylene blue, dissolved in a solvent which may be chlorinated diphenyl and dispersed in one of the above carriers.
Patent GB-479573-A (GB)
Title: Improvements in or relating to cigarettes
IPC: C06F3/00
Filed: 1937-04-22
Abstract: 479,573. Match-igniting compositions. SZWABOWICZ, A. April 22, 1937, No. 11544. Convention date, April 23, 1936. [Class 50] A frictional lighting composition applied to a cigarette comprises 6 parts of potassium chlorate, 2 parts of sodium or potassium dichromate, 1 part of sand and 1 part of dextrin.
Patent GB-566612-A (GB)
Title: Improvements relating to annular cutting tools
IPC: B23B51/04
Filed: 1944-01-05
Abstract: 566,612. Annular cutters. ELLIOTT, W. T. Jan. 5, 1944, No. 11558/43. [Class 83 (iii) A tool for cutting holes in sheets of plywood, plastic material, &c., comprises a flexible toothed strip 5, for example, a piece of broken hack - saw blade, held within a flange 2 on a disc 1 by shoes 6 with bevel ends 7 expanded by wedges 9 guided by cranked plates 8. The wedges are operated by a two-armed cam 10 clamped by screws passing through annular slots. The cam may be operated by a set-screw if greater clamping power is required. The edge of the flange 2 serves as a depth stop. The tool is guided by a centre pin screwed into the boss 11, a pilot hole being first drilled. In a modification, the blade is clamped by a washer with a conical hole engaged by a reversely coned flange on the spindle. In a further modification, for small sizes, the blade is clamped by a disc integral with the spindle.
Patent GB-619517-A (GB)
Title: Improvements in or relating to cathode heating circuit arrangements for electron discharge tubes
IPC: H01J1/13
Filed: 1946-04-16
Abstract: 619,517. Valve supply circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WASSELL, H. J. H. April 16, 1946, No. 11698. [Class 40 (vi)] Indirectly heated cathodes of discharge tubes, particularly for use in radio sets, are quickly brought to emission temperature by applying to the heater an abnormally high voltage which is automatically reduced to normal value upon a pilot tube passing anode current. As shown in Fig. 1, the heaters of valves V are supplied from a high voltage source 1 through resistors 3, 4 which may be short-circuited by the contacts 5, 6 of relays 9, 10 connected in the anode circuit of a pilot tube 7 having its heater in parallel with those of valves V and its anode circuit energized by a source 8. On switching on, the heaters are supplied at medium voltage over resistor 3. When the anode current through tube 7 reaches a certain value, determined by an adjustable resistor 11, relay 9 picks up and shorts out resistor 3, thereby applying full voltage to the heaters. Further increase of anode current energizes relay 10 which inserts resistor 4 in the heater circuit to establish the normal heater voltage. A relay 13, 14 prevents closure of the heater circuit prior to energization of the anode circuit of tube 7. Protection in event of failure of tube 7 may be provided by a delayed relay 14<1>, Fig. 2, having normally closed contacts 13<1> in the heater circuit in parallel with normally open auxiliary contacts operated by relay 10. When the heaters are supplied from an A.C. source, the relays 9, 10 may connect the heater circuit to different tappings on a supply transformer. Different groups of heaters having different ratings may be supplied through different combinations of resistors controlled by additional contacts of the relays. Alternatively, a number of different voltage heating sources may be provided for the different groups, or a number of normally parallel connected heaters may, for rapid initial heating, be individually connected to the source through separate resistors.
Patent GB-1189099-A (GB)
Title: Supplying Cooling Air to Microwave Tubes
IPC: H01J7/24
Filed: 1969-03-05
Abstract: 1,189,099. Cooling cavity resonators; cooling discharge tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 March, 1969 [8 March, 1968], No. 11700/69. Headings H1D and H1W. A microwave tube 5 mounted within a cavity resonator is cooled by air which is directed to follow an α-shaped path around the tube by the air inlet and outlet ports 2 and 3, which are obliquely mounted on the metal flange 1, and each of which has its crosssectional area subdivided by axially extending metal plates, such that the array of passages presented by each port to the resonator presents a low resistance to the air stream, while each passage of the array has a cut-off frequency for electromagnetic radiation higher than the operating frequency of the resonator, whereby loss of radiation through the coolant ports is prevented. A variety of configurations, relative dimensions, and arrangements, of the axially extending plates is disclosed (Figs. 3 to 12, not shown). The plates may be held within the ports by having their outer edges either soft-soldered to the inner surface of the ports, or bent over to be held therein by pressure (Fig. 5, not shown). If held by pressure, the bore of the port and the plates therein may be tapered in the direction of flow of the air, to prevent their displacement by the airstream.
Patent GB-1293084-A (GB)
Title: An improved drafting machine
Inventor: GILBERT LESLIE ARTHUR
IPC: B43L13/04
Filed: 1970-03-11
Abstract: 1293084 Draughting machines RAY & GILBERT PTY Ltd 23 April 1971 [11 March 1970] 11704/70 Heading G1X A draughting machine comprises a first tubular member 10 in which a first carriage 12 is moveable, the first carriage 12 supporting a second tubular member 13 in which a second carriage 14 supporting a drawing head 15 is moveable. The tubular members 10, 13 which are slotted along their lengths are each defined by a pair of co-operating channel-shaped members provided with grooves for guiding rollers 25, 27 of the carriages 12, 14. A counterweight (24) is mounted in the second tubular member 13 and is connected by a cable 38 which is trained over pulleys 34 to the second carriage 14 for counterbalancing the carriage 14 and the parts supported thereby. Lever actuated locking mechanisms may be provided to lock the carriages relative to their associated tubular members.
Patent GB-702555-A (GB)
Title: Improvements in ferritic alloy steels
IPC: C22C38/54
Filed: 1951-05-18
Abstract: A ferritic alloy steel has the following composition:-C 0.03-0.2 per cent., Si 0.1-1.5 per cent., Mn 0.1-2.0 per cent., Cr 3.5-8.0 per cent., Ti 0.05-0.4 per cent., V 0.01-0.5 per cent., B 0.001-0.05 per cent., W 0.4-2.5 per cent. and/or Mo 0.3-1.5 per cent., the maximum total content of W and Mo when both are present being 3.0 per cent., Fe, and incidental impurities, the remainder. The alloy may also contain Ni up to 2.0 per cent.  The Provisional Specification describes also an alloy from which B is absent and in which the range of proportions C, Cr, Ti and W are C 0.03-0.25 per cent., Cr 3.5-9.0 per cent., Ti 0.05-0.5 per cent., W 0.5-2.5 per cent., the ranges of proportions of the other constituents being as stated above.
Patent GB-237667-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B27/16
Filed: 1924-05-13
Abstract: 237,667. Pay, E. H. May 13, 1924. Liquid-fuel supply. - In supplying oil to the burner of an instantaneous steam generator, the oil passes from a low-pressure tank A<2> through a pump C<2> and check valve D<2> to a high-pressure tank B<2> which supplies the burner E<3>. Excess of oil returns through a loaded valve F<2> to the tank A<2>. Reference has been directed by the Comptroller to Specifications 12243/00, 18241/02, and 12697/04, [all in Class 123, Steam generators].
Patent GB-623484-A (GB)
Title: Improvements in flyers for spinning and like machines and the manufacture thereof
IPC: D01H7/30
Filed: 1947-05-01
Abstract: 623,484. Spinning &c. flyers. HATTERSLEY, C. H., and HATTERSLEY & SON, Ltd., J. May 1, 1947, No. 11789. [Class 120 (ii)] [Also in Group XXII] A flyer for spinning, roving &c., machines is made by cold pressing operations from a shaped blank by forming marginal ribs 11, 11 with a gap 50, bending the blank to U-shape and closing the ribs 11 to form slotted legs 13, 14. A reinforcement plate 41 brazed &c. to the blank is secured above or below the blank by screwed sockets 2, 3 located by a polygonal hole in the blank. One leg 16 formed as a slotted tube carries a presser arm 15 on a bush 22 with stops for limiting oscillation and the other leg 13 is balanced by a lead mass 25. One leg may be flattened to reduce windage. The presser may be carried by the lower end of the leg 16, Fig. 14, not shown. When no presser arm is required the lower end of the leg may be provided with a two-part guide bush secured by a split ring or by expanding. Specification 616,380 is referred to.
Patent GB-1378321-A (GB)
Title: Spin testing method and apparatus for turbine-type flow meters
IPC: G01F25/00
Filed: 1972-03-15
Abstract: 1378321 Testing fluid-flow turbine meters ROCKWELL INTERNATIONAL CORP 15 March 1972 [17 March 1971] 11935/72 Heading G1N A method for determining a change in the mechanical friction developed by a metering rotor and other operatively rotatable components of a fluid-flow turbine meter includes the steps of accelerating the metering rotor to not less than a first pre-selected rotational speed and then allowing it to coast, detecting when the components are rotating at said first speed and thereupon initiating a test period during which is measured one of the following parameters (a) the time for the rotor to coast to a lower pre-selected speed, (b) the change of rotor coasting speed over a pre-selected time, or (c) the coasting speed at the end of the pre-selected time, and comparing said one parameter with a predetermined reference parameter to determine the change in friction developed by the meter subsequent to the determination of the reference parameter. (For Figure see next page)
Patent GB-1001397-A (GB)
Title: Electrical cable and method of manufacture
Inventor: DANENBERG LOUIS
IPC: H01B7/02
Filed: 1964-03-20
Abstract: 1,001,397. High frequency cables. MODERN PLASTIC MACHINERY CORPORATION. March 20, 1964, No. 11936/64. Heading H1A. An electric cable comprises a conductive wire core, a substantially water - free, vapourpermeable, cellular, synthetic, organic plastic layer surrounding the core, and a vapourimpermeable, synthetic, organic, plastic coating surrounding the said layer and adhering thereto. The inner layer is a polyolefin such as polyethylene, and the outer layer is polyvinylidene chloride. A conducting braid surrounds the outer layer. In manufacture the inner layer is heated, to remove water, by a high frequency field, and the outer layer applied by evaporating a solution of polyvinylidene chloride in, e.g. acetone (Figs. 3 and 4, not shown).
Patent GB-844153-A (GB)
Title: Improvements in or relating to high frequency dielectric heating equipment
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05B6/12
Filed: 1956-01-24
Abstract: 844,153. R.F. couplings. RADIO HEATERS Ltd. April 11,1957 [Jan. 24, 1956], No. 11947/57. Divided out of 844,152. Class 40(7). [Also in Group XI] A cooking oven comprises a wall which constitutes the dielectric of a capacitive coupling through which high frequency energy is transferred from an oscillator circuit to an electrode within the oven. As shown, an oven wall 12 consisting of hard glass or other low loss electrically insulating material is provided with runners 14 which support sheet metal shelves 18, 20 forming balanced electrodes. An oscillator section controlled by a switch 10 is contained within a section 8 of the oven and is coupled to the shelf electrodes by feed plates 26 which coact with vertical portions 22 formed on the electrodes, the wall 12 constituting the dielectric of the coupling. To vary the heat supplied to the oven, the feed plates are pivoted about an axis 30, thereby varying the coupling between the oscillator and the electrodes. An electric motor operating through a worm drive and a rack may produce rotary movement of the feed plates. In an alternative arrangement, the feed plates are mounted on an arm which is arranged to pivot about an axis perpendicular to the plane of the shelves, thus causing the spacing between the feed plates and the upturned edges of the shelves to be increased or decreased. The sides of the oven, or the portions of the sides between the two shelves, may be corrugated to minimize the dielectric heating of the oven walls. The feed plates and the means for moving them may be enclosed in a thick door of the oven which has an inner facing of hard glass with an outer metal skin spaced well away from the glass facing. Instead of balanced electrodes, a single shelf electrode may be used. The inner sides of the oven can be of metal with the exception of the side through which the power is fed, the electrodes then having insulated lateral portions and being insulated or spaced from the inner front and back walls of the oven. An R.F. generator may have for its tank circuit a cavity resonator tuned to a frequency of less than 250 mc/s., the pick-up from the loop in the cavity resonator being ganged to the movable feed plate. Specification 844,154 also is referred to.
Patent GB-216855-A (GB)
Title: Improvements in means for moulding t-shaped slabs
IPC: B28B23/02
Filed: 1924-05-28
Abstract: 216,855. Williams, G. B., (Assignee of Eldridge, L. L.). May 28, 1923, [Convention date]. Moulding T-shaped slabs; moulds.-T-shaped slabs are moulded by means of a pair of co-operating members 10 each having an upwardly projecting flange 12 on its upper face, and bulkhead pieces adapted to fit into the casting space are provided to form the ends of the slabs. The flange 12 is inclined at 13 so as to form a bevel on the longitudinal edge of the slab, and each member 10 has a rib 11 along its inner side atthe bottom edge. To produce a projecting tongue at each end of the slab the bulkhead 14 is placed, as shown in Fig. 5, at each end of the members 10, each piece being provided with bevelled ends to fit the faces 13 and also having a shank piece 15 depending between the members 10 and resting upon the ribs 11. Wire meshed fabric 16 is disposed vertically in the casting space for reinforcing the web, and its lower end extends down between the ribs 11. Transverse reinforcements 17 are also provided connected to the vertical reinforcement 16. During moulding the members 10 are supported on a base 18 provided with fastening-strips 19.
Patent GB-669201-A (GB)
Title: Improvements relating to starch adhesive and sizing compositions
IPC: D21H17/28
Filed: 1949-05-05
Abstract: 669,201. Adhesives and sizes. AMERICAN CYANAMID CO. May 5,1949 [May 5, 1948], No. 12027/49. Class 121 [Also in Group VIII] A fluid-stable adhesive or size comprises an aqueous dispersion of converted starch, containing, e.g. 10 to 60 per cent by weight of converted starch, and a fluid-stabilizing amount, e.g. 0.1 to 30 per cent based on the weight of starch, of a lower alkyl- or hydroxyalkyl substituted dicyandiamide having not more than 8C atoms in the substituent radicle. The latter may be monomethylol, monoethylol, isopropyl, N butyl or N octyl. The adhesive or size may contain also clay, sodium carbonate, urea, glycerine, ethylene glycol, wax sizes, glue, casein, water-soluble resins, cellulose derivatives and fire and mildew proofing agents. The adhesive or size may be made by dissolving the substituted dicyandiamide in the dispersion and heating the mixture to develop the adhesive properties of the converted starch.
Patent GB-1502202-A (GB)
Title: Thrust bearing resonance changer
IPC: F16C17/06
Filed: 1976-03-25
Abstract: 1502202 Bearings WESTINGHOUSE ELECTRIC CORP 25 March 1976 [9 April 1975] 12028/76 Heading F2A In a tilting shoe axial thrust bearing, the shoes 7 adjacent thrust collar 3 are supported by arcuate spring segments 13A, 13B, 13C joined, as at 15, to form ring structures around shaft 1. Spherical bosses 11 on the shoes engage bosses 17 on ring 13A. The rings are provided with spacing lugs 19 at their sides facing away from shoes 7, the number of lugs between adjacent rings being the same as the number of shoes, and the lugs of one ring being disposed about midway between the lugs of an adjacent ring. Thus, the lugs between 13A and 13B are intermediate the pairs of bosses 11, 17 while the lugs between 13B and 13C are in alignment with bosses 11, 17. The spacers on outermost rings 13C abut bearing base rings 23. This arrangement uniformly reduces stiffness in the bearing and thus the resonance frequency when the bearing is subjected to periodical axial loading.