baber/WOPTO huggingface dataset:
Patent GB-1332082-A (GB)
Title: Apparatus for feeding and cutting web material
IPC: B65B41/12
Filed: 1972-02-02
Abstract: 1332082 Feeding webs AMF Inc 2 Feb 1972 [12 Feb 1971] 4963/72 Heading B8R [Also in Division B4]  An apparatus wherein a reel B1 of web material, e.g. paper foil, is unwound, fed in a substantially linear path, e.g. defined by guides 104, 4, 204, by feed means, e.g. rollers 2, 40, and cut into equally sized sheets, e.g. for wrapping cigarettes, is provided with means for advancing the web from the feed means to a web cutting means, e.g. a drum 24 having segments 124, 224, 324 radially movable into and out of engagement with the web for advancing it to a cutting platform 38, means for forming a loop in the web between the feed and advance means, e.g. a housing 11 supplied with suction, means for deactivating the advancing means in response to a downstream sensor, e.g. sensing a faulty cigarette pack to be wrapped, means for sensing the loop size, e.g. photo-electric means 13, and means responsive to the latter sensing means to control the feed means. In operation, the web is initially hand threaded to position 39 and a loop is formed in the housing 11. A press button is then actuated to cause extension of a piston 16 which drives a pad 18 forwards thereby feeding the leading end of the web to a fixed blade 30. Complete extension of plunger 16 initiates continuous rotation of the drum 24 which advances the web past the blade 30 and on to the platform 38 where one of a plurality of blades 33 and suction platforms mounted for parallel rotation on a star wheel 36 cut and transport each sheet to the wrapping machine. As the loop diminishes, the photo-electric sensor 13, activates a solenoid valve causing a cylinder motor 10 to move a drive transmission disc 8 of a variable speed drive mechanism 6, 7, 8, 9 into a driving relationship to drive the feed rollers 2, 40. However, if the loop increases beyond a given size, e.g. when one or more segments of the drum 24 are retracted to prevent web advance and thereby prevent a sheet being cut and transported to a detected faulty cigarette pack, the feed rollers 2, 40 are slowed and ultimately stopped. The web feed and looping means may be duplicated to facilitate introduction of a new web reel B1A.
Patent GB-975025-A (GB)
Title: Pickup tube target
IPC: H01L21/00
Filed: 1962-02-08
Abstract: <PICT:0975025/C6-C7/1> A target for an image orthicon tube comprises magnesium oxide and/or aluminium oxide doped with indium or indium oxide. During manufacture, a nitrocellulose film is formed on a molybdenum support ring 24 and an evaporator boat is placed 20 cm/s. therefrom, in vacuo.  Aluminium is evaporated until light transmission through the film is reduced to 80% of its original value.  An alloy of 10% Mg, 25% Al and 65% In is then evaporated, by heating to 450-500  DEG C., until light transmission is reduced to 0.15% of the original value.  Alternatively, In and Mg may be co-evaporated, or In may be evaporated either before or after Mg is deposited on to the Al-coated film.  The target is finally oxidized after baking off the organic film.  Specification 771,504 is referred to.
Patent GB-176774-A (GB)
Title: Improvements in machines for measuring surface areas
IPC: G01B5/26
Filed: 1922-02-21
Abstract: 176,774. Krupp Akt.-Ges., F. March 10, 1921, [Convention date]. Surface areas, computing.-Relates to machines for measuring the area of leather &c. of the type in which a series of members are adapted to be lifted from a support so that when lifted they actuate a counter through the medium of coupling members adapted to be coupled to the transmitting segments or wheels, and consists in so constructing the drive that the transmitting segments or wheels can be mounted in fixed bearings. The drum or support A is constantly rotated and has resting upon it a series of contact wheels B. Each wheel B is rotatably mounted on the short arm of a two-armed lever D pivoted at C. An adjusting screw E on the end of the long arm of the lever D engages the short arm of a two-armed lever G kept in engagement with the screw E by a spring F. The long arm of this lever is provided with a pin carrying a pinion H. The pinion H is in one with a disc H<1> carrying two diametrically arranged pins which engage diametrical slots in a disc M. A second pair of similar slots on the disc M at right angles to the first pair are engaged by two pins on the wheel B. When the leather N to be measured is passed between the drum A and the roller B, the roller is raised and through the levers D, G the wheel H is placed into gear with the transmitting wheels K mounted in fixed bearings J. The wheels K transmit the movement of each roller to a counting mechanism in known manner.
Patent GB-143643-A (GB)
Title: Improvements in screw propellers for marine navigation
IPC: B63H1/12
Filed: 1919-03-01
Abstract: 143,643. Cinca, C. March 1, 1919. Screw propellers.-A screw propeller comprises a complete helix 1 the ends of which are prolonged by curved surfaces 2 to join the hub 3. The helical surface is slightly dished or inclined forward as shown by the generating-line 4. A number of such screws may be placed on each side of the vessel, and the shafts 13, Fig. 3, may be driven through worm gearing 17, 18 and bevelgearing 16, from the main shaft 15.
Patent GB-322398-A (GB)
Title: Improvements in or relating to knife blades
IPC: B26B9/02
Filed: 1929-02-16
Abstract: 322,398. Grant, W. Feb. 16, 1929. Table knives.-A knife blade 6 has on one or both sides rounded depressions 8 disposed in close proximity to one another and meeting the edge 7 of the blade without intersecting it.
Patent GB-655155-A (GB)
Title: Improvements in or relating to the production of hollow pre-cast concrete building units
IPC: B28B7/30
Filed: 1947-02-22
Abstract: 655,155. Collapsable cores and moulds for making hollow concrete beams &c. MACDOUGALL & CO., A. M., and MACDOUGALL, A. M. Feb. 22, 1947, No. 5241. [Class 87 (ii)] A core comprises an inverted metal channel 8 supported by lugs 9 on metal tubes 5, 6 which are held apart by a wooden block 7. To collapse the core, the block 7 is removed and the tubes rotated in opposite directions, whereupon the channel drops and the parts may be pulled out by gripping means engaging holes 11, 12. To facilitate collapse, the channel converges upwardly and rearwardly. The mould sides are wedge-shaped metal plates 3 which are supported by end shuttering 4. In operation, first a layer of concrete 1 is laid on shuttering 2, then the mould sides 3 are driven down through the layer 1 then the core and reinforcement are assembled, then the concrete is cast, and finally, when the concrete has set, the core is removed. To conserve space, beams may be cast on top of one another.
Patent GB-207098-A (GB)
Title: Improvements in or relating to protectors for the outer covers of pneumatic tyres
IPC: B60C27/00
Filed: 1923-02-22
Abstract: 207,098. Geranio, N. Feb. 22, 1923. Tread bands.-A tread band comprises a base 1, of rubbered canvas, a. layer 2 of raw rubber, a band 4 of metal or other puncture-resisting fabric and a tread 3 of leather or the like, the whole being connected by rivets 5. A layer 6 of protective material is fitted under the rivets 5. Wires 7, in helical wire wrappings 8 enclosed in folds in the base 1, may be connected by adjusting screws, and a hook-and-eye connection may be used between the ends of the tread 3. In a modification, when used on small tyres, the adjusting means and joints may be omitted, and in larger sizes an adjusting means may be provided in one wire only, the side of the band adjacent the adjuster having an elastic insertion to enable it to be passed over the tyre. The strip 2 may extend only between the tread and rims, and the tread may be of black rubber.
Patent GB-495930-A (GB)
Title: Electric warning device for pipe lines containing gas under pressure
IPC: F17D5/00
Filed: 1938-02-21
Abstract: 495,930. Valves combined with electric switches. JOBLING & CO., Ltd., J. A., and DOBBING, C. K. Feb. 21, 1938, No. 5342. [Class 135] [Also in Group XXXVII] An electric warning device for indicating the leakage or consumption of gas in a pipe line comprises a valve member in the form of a thimble 8 slidable over a tubular piston 4 fixed in a valve casing 1, and a circuit closer or switch 9, 10 adapted to close a circuit containing a lamp or like enunciator when operated by the thimble under the difference in gas pressure between its opposite sides. The valve casing has an inlet 2 connected to a gas supply pipe and an outlet 3 connected to a pipe section with gas consuming devices such as oxygas blow pipes. The fixed piston 4 has a pilot port 6 in its upper end and one or more lateral ports 7. The moving contact 9 of the circuit closure is supported on the thimble by an intervening spring whilst the fixed contact 10 and its terminal 12 are supported by an insulator 11. A further terminal is mounted on the valve casing.
Patent GB-852655-A (GB)
Title: Improvements in or relating to a method of and apparatus for thermally treating suchas drying articles
Inventor: JEPSON MICHAEL DENIS
IPC: F26B17/04
Filed: 1958-02-19
Abstract: 852,655. Drying moulded articles. SPOONER DRYER & ENGINEERING CO. Ltd. Feb. 18, 1959 [Feb. 19, 1958], No. 5349/58. Class 34(2) Light-weight articles 12, Fig. 1, of moulded pulp &c. are dried on a perforate conveyer 11, the upper run of which passes through the space between hot air or gas chambers 13 having transverse nozzles 14 for directing the air on to the articles and suction chambers 23. The consequent pressure drop across the conveyer is sufficient to hold the articles in position on the ccnveyer. The air in the drying chamber is circulated by fan 15 driven by electric motors 16, the air passing through ducts 17, 18, Fig. 4, into the chambers 13 and after discharge from the nozzles returning in part from the space above the upper run of the conveyer to the fan for recirculation. A slight vacuum is maintained in the chambers 23 by fans 26, Fig. 2, which return the air through pipes 27 to the fan inlets 19. The air is heated by burners 22. Alternatively, the air may be heated in heat exchangers heated by steam or by electric heaters. In a modification, the articles travel from one end of the apparatus to the opposite end and back again whilst held on the conveyer 36, Fig. 3, by the air issuing from the nozzles 14 and 42 of chambers 13 and 41 disposed respectively above and beneath the conveyer and the vacuum produced in the chambers 23 disposed between the upper and lower runs of the conveyer.
Patent GB-202663-A (GB)
Title: Improvements in the manufacture of roller bearings
IPC: B21H1/12
Filed: 1922-02-23
Abstract: 202,663. Timken, H. K. Feb. 23, 1922. Steady-rests.-A roller bearing cup A is mounted on a spindle D and the outside finished (concentrically by a turning tool O, the surface being simultaneously smcothed by means of rollers Q mounted in a pivoting head S.
Patent GB-804196-A (GB)
Title: Rotatable counterweight mechanism
IPC: B66C23/76
Filed: 1957-02-18
Abstract: 804,196. Counterweights for balancing cranes. CATERPILLAR TRACTOR CO. Feb. 18, 1957 [Dec. 5, 1956], No. 5385/57. Classes 78 (2) and 78 (4). A counterweight 18 for balancing a crane mounted on tractor 8 is carried by pairs of arms 12, 14 pivoted on frame 11 secured to said tractor 8. The counterweight is displaced sideways by jacks 16, the arms ensuring that the counterweight moves along a substantially horizontal path.
Patent GB-101189-A (GB)
Title: An Improved Low Truck or Bogie Carriage as used on Railway Platforms and such like Places, Fitted with a Means to Prevent same from Moving when not in Use.
Inventor: MURDOCH FRED TEED
IPC: B62B5/04
Filed: 1916-04-14
Abstract: 101,189. Murdoch, F. T. April 14, 1916. Hand-trucks of the railway-platform type are braked, when not in use, by raising or dropping the handle M from the propelling position, whereby the cranked forward axle D, E, with which the handle is rigid, is turned in its bearings in the turntable C to lower the truck at this end and cause the depending eide members B' of the cross-bar B to contact with the ground and take the weight off the front wheels K. The cross-bar B is fixed to and between the main side bars A of the truck, and the pivot N of the fore-carriage or turntable passes through it and the member C. Fig. 4 shows the inclined position of the crank of the axle D, E assumed when the handle is raised, the members B<1> being in contact with the ground.
Patent GB-1313636-A (GB)
Title: Liquid metal steam generator
IPC: F22B1/06
Filed: 1972-02-07
Abstract: 1313636 Liquid metal steam generator UNITED STATES ATOMIC ENERGY COMMISSION 7 Feb 1972 [2 March 1971] 5543/72 Heading F4A In a liquid metal steam generator, i.e. using liquid sodium, a pressure vessel 12 is divided by tube sheet means 22 into an upper high pressure water/steam region and a lower liquid metal low pressure region, and sets of tubes for evaporation 38 and superheat 36 extend from the upper region into the liquid metal, each set of tubes comprising concentrically arranged tube pairs, Fig. 3. Feedwater enters at 57 and passes via channel 48 down the inner tubes 82 of set 38. The liquid metal enters 24 and passes round baffle 42 and over set 38 to outlet 28 (arrows A); and the saturated steam produced in the evaporator tubes 38 passing up through the annular channel between inner 82 and outer 77 tubes to nozzle 23. Line 83 passes the saturated steam via nozzle 64, and openings 58 to the annular passage between inner, 74, and outer, 72, tubes of superheat set 36 extending into the liquid metal region. Superheated steam returns through the inner tubes 74, though upper tube sheet means 52 and chamber 55b to the outlet 62. To operate the generator in a recirculation mode valve V3 is closed valves V1, V2 opened and the saturated steam bearing nozzle 23 passes through steam drum 5 for separation of water and steam. Outlet 28 allows the discharge of any water/ liquid metal reaction products formed in the space between the metal level 32 and the tube sheet means 22.
Patent GB-608413-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/04
Filed: 1946-02-22
Abstract: 608,413. Valve accessories. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., LEECH, K. H., and SHATTOCK, C. F. B. Feb. 22, 1946, No. 5592. [Class 135] [Also in Groups XXVII, XXVIII and XXXIV] In fluid-pressure brake apparatus for vehicles, of the kind in which a reservoir charged by a compressor under the control of an unloader device is arranged for connection to a brakeoperating cylinder by a driver's valve; the exhaust outlets from the valve and the unloader device open into a silencing chamber communicating with the atmosphere and wholly or partly contained in the reservoir. As shown, a silencing chamber 3 extends through the supply reservoir 1 and the casing 9 of a driver's brake control valve extends into the chamber 3. The valve which is of the self-lapping type comprises application and release valves 10, 11 operated by a piston 18 through a tubular part 17. The piston is operated by the slidable rod 7 and member 28 acting through a spring 19 and is subject to the opposing pressure in the brake cylinder connected at 15. Further movement of the rod 7 after lost-motion 32 has been taken up is opposed by a spring 31 to increase the reaction felt by the driver when an emergency application is made, the spring being disposed between slidable and fixed collars 29, 30. The exhaust outlet from the unloading device from the pump is connected to a part 21 and the exhaust thus flows through the narrow annular space 20 between the casing 9 and the wall of the silencing chamber and is thus effectively silenced. The exhaust from the driver's valve also flows through the space 20 by way of the tubular part 17 and port 33.
Patent GB-838891-A (GB)
Title: Improvements in flat rigid structures, e.g. for use as doors
IPC: E06B3/82
Filed: 1958-02-20
Abstract: 838,891. Doors. GUBRI, L. G. Feb. 20, 1958 [Feb. 26, 1957], No. 5598/58. Class 20(3) A door body comprises a framework 30 to 32 of rectangular-section members flanged on two opposing sides, a plate 1 being secured as by welding to one side of the framework while a second plate 1 is provided with elements 31a which hook over the flanges of members 31 so that the second plate may be slid into engagement with the framework before being welded thereto. The outer flanges on members 32 and the vertical sides of the plates 1 may be inturned so as to engage peripheral frame members 39 and 4 respectively. The space between the plates 1 is filled with asbestos blocks and glass fibre packing.
Patent GB-385784-A (GB)
Title: Improvements in the reheating of vapours or gases in turbines
IPC: F01K3/18
Filed: 1932-02-25
Abstract: 385,784. Elastic - fluid turbines. BABCOCK & WILCOX, Ltd. and DAVY, C. H., Babcock House, Farringdon Street, London. Feb. 25, 1932, No. 5619. [Class 110 (iii).] In a turbine plant comprising a H.P. stage A and a L.P. stage C, the working-fluid, vapour or gas, is reheated electrically between the stages by a reheater E. The current supply to the elements of E may be derived from the main generator H or a separate machine I which is clutched to the turbine shaft by a clutch K. A bye-pass valve L when opened short circuits the reheater and also automatically operates means to release the clutch K from driving the generator I. The electrical reheater may be additional to a steam or gas reheater, to resuperheat the working fluid.
Patent GB-457244-A (GB)
Title: Improved method of applying fluorescent material to a support
IPC: H01J29/22
Filed: 1936-02-25
Abstract: 457,244. Fluorescent screens. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 25, 1936, No. 5671. Convention date, May 28, 1935. [Class 98 (i)] The fluorescent material is applied to the support from a suspension of the material mixed with a highly-nitrated binding agent, and the binding agent is removed by burning, as by heating to 300‹ C. in air or oxygen. In examples, (1) calcium tungstate is applied from a suspension in amyl acetate containing nitrocellulose as binder, and (2) zinc silicate is applied from a suspension in alcohol containing collodion as binder. Cadmium tungstate, zinc sulphide and mixtures of zinc sulphide and cadmium sulphide may be used.
Patent GB-285914-A (GB)
Title: Improved method for drying paper or the like in the form of continuous webs and improvements in paper making machinery for carrying out this method
IPC: D21F5/02
Filed: 1928-02-23
Abstract: 285,914. Ohlin, E. A. Feb. 26, 1927, [Convention date]. Drying.-Paper or other material in the form of a continuous web is dried by passing over heated rolls, preheated air being conducted over the web so that its direction of movement throughout the drying space coincides with the direction of feed. The fresh drying air is preheated by air which has passed over the web, while the hood which surrounds the roll is heated to a higher temperature than that of the drying air e.g. by condensate from the drying roll. The drying cylinder 1, Fig. 1, is partially surrounded by a hood 3 having walls 4, 5 the inner wall 4 having transverse projections 15 to agitate the air which is supplied at about 60-70‹ C. through a funnel 17 to the drying space 6. The sides and ends of the drying space 6 are respectively closed by spring-pressed flexible members 10 and by rollers 12. The cylinder 1 is supplied through a pipe 25, Fig. 4, with steam from a generator 23 and the condensate is led to the hood 3 through the pipe 21. The drying air is warmed in a heater 20 by used air led thereto through a pipe 18.
Patent GB-1504427-A (GB)
Title: Asynchronous magnetic couplings
IPC: H02K49/04
Filed: 1976-02-13
Abstract: It is intended to create a rotation-speed converter which is provided with an effective cooling device, on the one hand can be used under extreme conditions which could exert a damaging influence on its internal structure, and uses a coolant which does not adversely affect its functionality. Said converter has two rotors (4, 9; 5), which are arranged in one another, and an annular excitation coil (10) which surrounds said rotors and is in a fixed position. Provided for cooling the converter are two closed and mutually separated cooling circuits (14, 16; 17) of which the first (14, 16) is constructed in a toroidal shape inside the converter and runs entirely inside the converter, and the second (17) is supplied from the exterior, the converter having a pressure-resistant housing (8). The rotation-speed converter is used between a motor and a machine which is driven by said motor and conveys a fluid operating means, for example a pump, a compressor, a fan or the like. <IMAGE>
Patent GB-892128-A (GB)
Title: Process for the production of wash-and-wear characteristics in woven fabrics or regenerated cellulose
Inventor: MEREK BRUNO STEFAN WLADIMIR
IPC: D06M15/423
Filed: 1959-02-19
Abstract: A drip-dry finish which is fast to washing is produced on a regenerated cellulose woven fabric by immersing it, in the absence of a catalyst, in an aqueous solution of ethylene diamine of 70%-90% by weight strength at 0 DEG C.-20 DEG C., allowing the ethylene diamine to remain in contact with the fabric for 3-30 minutes, removing the ethylene diamine and drying the fabric during or after the removal of the ethylene diamine, the treatment being carried out while the fabric is under no tension or under tension insufficient to cause the fabric to stretch.  The treatment may be carried out by immersing the dry and desized fabric in the ethylene diamine solution, expressing the excess solution from the fabric, washing the ethylene diamine out of the fabric with water, if necessary neutralising with acetic acid, and then drying, or by immersing the fabric in the ethylene diamine solution for a short time only, expressing excess liquor, maintaining the impregnated fabric for the remainder of the specified treatment time with the ethylene diamine on it, washing free of ethylene diamine and finally drying.  Alternatively, the fabric may be immersed in the ethylenediamine solution, expressed and then continuously passed over rolls through a closed chamber in which the bulk of the ethylene diamine is evaporated out at an elevated temperature, and finally washed free from ethylene diamine and dried. The ethylene diamine is preferably washed out of 0 DEG C.-10 DEG C. The fabric may subsequently be treated with formaldehyde, subjected to compressive mechanical shrinking or treated with resins, such as pre-polymerised synthetic resins, e.g. polyacrylic esters, or synthetic resins condensed in situ, e.g. urea-formaldehyde, melamine-formaldehyde and cyclic ethylene urea resins, to improve its dimensional stability.  The handle of the fabric may also be improved by the treatment.  Fabrics made from highly oriented regenerated cellulose fibres known as "Polynosics" may be treated. Specifications 479,341, 650,896, 652,645, 678,335, 683,203, 720,173, 750,088, 767,810 and 767,811 are referred to.