baber/WOPTO huggingface dataset:
Patent GB-1127382-A (GB)
Title: Electron accelerator tube
IPC: H01J31/50
Filed: 1965-12-01
Abstract: 1,127,382. Electron beam apparatus; electron multipliers. BENDIX CORP. 1 Dec., 1965 [7 Dec., 1964], No. 10215/67. Divided out of 1,127,381. Heading H1D. An electron accelerating device comprises an insulating tube 50 provided with an internal or an external resistive coating 52 across which a voltage is applied, the radial thickness of the coating decreasing down the tube thus providing an increasing resistivity to current flow such that there is established a longitudinal potential gradient which changes as a function of axial displacement and creates an electrostatic accelerating field having a longitudinal component and a radial component directing the electrons towards the central axis of the channel. The longitudinal potential gradient may increase linearly with distance or at a lesser or greater rate while the radial potential gradient may be constant or increase or decrease linearly. The tube 50 may be of glass and the resistive coating of a predominantly tin, antimony or lead oxide composition. A number of tubes 50 may be bonded together to form a mosaic structure for use in an image intensifier tube, the fluorescent screen being mounted in electrical contact with the end of the mosaic structure. In electron multiplier structures the, or each, insulating tube is provided with an initial section of uniform resistivity where electron multiplication takes place.
Patent GB-351965-A (GB)
Title: Improvements in tables for playing games
IPC: A47B25/00
Filed: 1930-04-01
Abstract: 351,965. Table games. GODDARD, R. S., 28, Broughton Street, Battersea, London. April 1, 1930, No. 10298. [Class 132 (ii).] A modified billiard table has two pockets 13 at the corners common to the side 2 and other pockets 20, 21 in the opposite side 4 spaced away from the corners common to the side 4. Baulk lines 5, 8, 9 and corresponding semicircles or " D's " 6, 7, 10, 11 are marked on the playing area so that the side 2 may be used for top of the table play as on a full-sized billiard table and the pockets 20, 21 and the baulk lines 9, 8 for centre pocket play. Dimensions of the table and baulk lines are given.
Patent GB-140240-A (GB)
Title: Improvements in or relating to garters
IPC: A41F11/16
Filed: 1919-04-25
Abstract: 140,240. Faire, Sir S., and Faire Bros. & Co. April 25, 1919. Sock-suspenders.-The circular band 4 is formed of a straight length of elastic webbing, the opposing ends of which are cut off at an angle so that, when these edges are secured together, the band assumes a shaped form as shown. A shaped leather tab 7 is stitched over the ends of the webbing and supports a sock-engaging device comprising a keyhole slot and a rubber or other stud 14. Reference has been directed by the Comptroller to Specification 110,741.
Patent GB-702552-A (GB)
Title: Processing apparatus for photographic prints
IPC: G03D3/08
Filed: 1951-05-03
Abstract: 702,552. Photographic processing apparatus. AGFA CAMERA WERK MUNCHEN. May 3, 1951 [July 26, 1950], No. 10454/51. Class 98(2) [Also in Group XXX] Processing apparatus for photographic prints has a number of successive containers for processing liquids and a number of inclined, endless conveyer bands each so arranged that its lower end can travel beneath the level of a processing liquid in a container and so that the upper end of a band projects beyond its corresponding container and overhangs the lower end of a succeeding band, by which arrangement a print can be lifted out of one container by an overhanging band, can fall freely from the upper end of the band and can sink through the processing liquid in the succeeding container on to the lower end of the succeeding band. As shown, the apparatus includes containers 1, 2, 3 for the developer, a stop bath, and fixing solution respectively. A U-shaped support 22 fits into container 2, and carries a motor 4 and a pair of rollers 9, 10. A second pair of rollers 7, 8 are mounted at the end of arms 23 mounted on support 22. A conveyer belt 11 passes between rollers 7, 8, over roller 9, between rollers 9, 10 and back over roller 7. The belt 11 is moved continuously by roller 9, which is driven through a belt and pulley by motor 4. Part of the belt 11 lies below the surface of the developer. A print 5 to be processed is introduced, by means of a guide plate 6, between rollers 7. 8 and is thereby passed through the developer and rests on belt 11, by which it is carried out of container 1. Belt 11 has inclined seams or ribs to increase friction, and wires 12 are provided above the belt to prevent the print from curling. As it passes over roller 9, print 5 is stripped off the belt by a fixed bar 13 and falls into the stop bath in container 2. It sinks through the liquid on to a second conveyer belt 17, similar to belt 11, which passes round a roller 16 on lugs 25 on arms 24 of the support 22, and a roller 15 on support 22. The arms 24 rest on the sides of container 2, and extend over container 3. Roller 16 is driven through a belt and pulley by motor 4. The print 5, on reaching roller 16, is stripped off by a fixed bar 18 and falls into the fixing solution in container 3. The time of treatment in each bath can be varied by varying the speed of the belt and the level of the liquid.
Patent GB-884603-A (GB)
Title: Electric circuit control apparatus
Inventor: LOWE SIDNEY ROLAND
IPC: H01H71/02
Filed: 1959-03-26
Abstract: 884,603. Plug-boards; thermal switches. MIDLAND ELECTRIC MANUFACTURING CO. Ltd. March 21, 1960 [March 26, 1959], No. 10513/59. Class 38 (5). Circuit control apparatus comprises a coverplate a carrying a switch b having a finger piece c, a socket d co-operable with a three-pin plug (not shown), a fuse e and an automatic circuitbreaker, protection against large and small overloads being provided by the fuse and circuit breaker respectively. The circuit-breaker consists of a current-carrying bi-metal strip f slotted to form a central tongue, Fig. 3 (not shown), which carries a contact h co-operating with a fixed contact i, these contacts remaining open after overload deflection of the strip until reset by a push-button k. Alternatively, the strip f may be controlled by a heating coil or may automatically reclose the contacts h, i after deformation. The fuse may be mounted in the plug instead of on the plate a.
Patent GB-105606-A (GB)
IPC: F02M21/00
Abstract: 105,606. Southey, A. W. April 18, 1916. Vaporizers, external.-Superheated gaseous fuel is produced from liquid hydrocarbons by causing a high temperature flame to act directly upon the liquid fuel at a point where air is not available to support further combustion, the flame and fuel being both drawn by the engine suction. The casing a encloses an annular float chamber g which in turn surrounds a space b containing wicks c which dip into the liquid fuel admitted to the space b from the float chamber through holes m. Within the wicks c is an empty receptacle h which carries the fuel nozzle d fed through holes n and strainer q. The nozzle is surrounded by the neck e<1> of the chamber e the outlet from which is controlled by a throttle valve u. Air to the flame space b is admitted through flap valves x. The flame from the wicks is drawn by the engine suction into the opening e<1> where it meets the fuel from the nozzle d, after vaporizing which it is extinguished. In a modification, shown diagrammatically, the flame impinges on the surface of the fuel maintained at a constant level.
Patent GB-674454-A (GB)
Title: Light controlling louvre
IPC: F21V11/00
Filed: 1950-04-28
Abstract: 674,454. Making louvres. SYLVANIA ELECTRIC PRODUCTS, Inc. April 28, 1950 [April 29, 1949], No. 10570/50. Class 83 (ii). [Also in Group XI] A louvre is formed by bending a single piece 1 of sheet metal to corrugated section and cutting out baffles 10 from the upper and lower surfaces 3, 5 of the corrugations, the baffles being bent downwardly and upwardly respectively to form with the sides 2, 4 of the corrugations a cellular structure. Fig. 2 shows a developed pattern of the sheet 1 prior to forming the louvre, the blank being cut to desired size with a row of tabs 8 at one end extending from the marked areas 3, 5 to provide for closing the end row of cells 12. Sufficient material is allowed along the side edges of the blank to provide supporting flanges 7. To increase lateral rigidity the baffles 10 and tabs 8 of the formed louvre may be spot-welded to the adjacent areas 2, 4. The louvring may be formed from a continuous strip of metal, by successive stamping and forming operations, to be subsequently cut into desired lengths.
Patent GB-106623-A (GB)
IPC: G04F7/04
Abstract: 106,623. Marks, E. C. R., (BuhrÚ, P. [Firm of]), Feb. 12, 1916 Stop mechanism.-A stop-watch is provided in which the successive pressures on the controlling- stem start the chronograph hand, reverse it at the same speed without previous stopping, and bring it to a standstill at zero. A yoke f pivoted at g carries a wheel d always in gear with a wheel b on the fourth arbor a, and the first operation of the combined ratchet-wheel m and castle-wheel i by the pusher j allows the yoke to be set by a spring o, so that the centre-seconds wheel c is driven in the clockwise direction. The second operation of the castle-wheel puts the above-mentioned yoke into its initial position and lets another yoke 2 interpose a pinion 4 between the wheel d on the former yoke and the central wheel. A third operation removes the pinion from contact and applies levers s, t to the heart-cams x, thereby setting the hands to zero. At the first operation, the levers are lifted off the cams.
Patent GB-408097-A (GB)
Title: Method of chromium plating
IPC: H01J19/00
Filed: 1933-04-10
Abstract: 408,097. Electrodeposition of chromium. BARON, H.,231, Strand, London. -(Siemens & Halske Akt.-Ges. ; Siemensstadt, Berlin.) April 10, 1933, No. 10686. [Class 41.] Black firmly adherent coatings consisting of chromium or chromium oxide or a mixture of these are formed on metals by deposition from a standard chromic acid plating bath at a cathodic current density of about 10,000- 20,000 amps. per sq. metre, a voltage of about 8-10 and a bath temperature below about 30‹ C. For lustrous black deposits baths from which sulphuric acid has been removed should be employed ; for matt black deposits the sulphuric acid should be removed and a small proportion of acetic, formic, propionic, oxalic or other carboxylic acid should be added. The articles may be previously coated with a bright chromium deposit or with nickel or with these metals in succession. Tungsten electrodes of vacuum discharge tubes or other apparatus requiring high heat dissipation may be coated by the process.
Patent GB-131407-A (GB)
Title: Improvements in or relating to the Manufacture of Tyres.
IPC: B29D30/06
Filed: 1918-06-28
Abstract: 131,407. Dunlop Rubber Co., and Macbeth, C. June 28, 1918. Moulding wheel tyres; moulds; moulding- -Relates to the opening of moulds containing tyres or similar circular moulds for other articles, and consists in engaging the mould by means adapted to separate uniformly the mould shells and to retain the core carrying the tyre out of contact with the shells after separation. As shown, the mould shells B, C and the core D are formed respectively with inwardly-projecting bevelled portions B<1>, C', D<3>, adapted to be engaged by wedge-shaped portions H', H<2>, I<1>, I<2> respectively of a pair of mould openers H, I, which are adapted to be introduced within the mould and to be moved radially bv hydraulic or mechanical means. Fig. 1 shows the member H formed as a piston, and the member I as a cylinder which is supported by a ram G movable vertically by hydraulic pressure, the member H being operated through a lever M by a laterally moving hydraulic piston L. Two sets of openers H. I are preferably employed, being disposed on opposite sides of a diametrical web of the core D, which is furnished with a hub portion D<2> In operation, the mould is placed upon a support A over a recess J housing the apparatus, and the ram G is raised until a central platform thereon engages the hub D<2> and raises the mould bodily, after which the piston L is operated to force out the openers H. which engage the mould and move it laterally until the openers I also come into operation as shown in Fig. 7. Continued movement of the piston L causes the mould shells to be separated and the core to be held by the openers. The lower shell B falls on to the support A and the upper shell C is removed, after which the core D is engaged by a grab &c. and removed with the tyre E, the members H, I being withdrawn. The ram G is then lowered and the lower shell B is removed. Modifications are described in which the members H are moved outwardly directly by hydraulic pressure and are retracted either hydraulically or by springs. Fig. 19 shows a modification in which the openers H. I are carried by a support R and are operated by levers P actuated by screw-and-nut mechanisms.
Patent GB-166878-A (GB)
Title: Improvements relating to the control of alternating-current electric motors
IPC: H02P1/46
Filed: 1921-04-12
Abstract: 166,878. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Goodwin, July 19, 1920, [Convention date]. Systems for alternating-current motors only.- Synchronous motors are started on reduced voltage and automatically switched over to full voltage by a device responsive to the change in the current traversing the field circuit when synchronous speed is attained. In the arrangement shown a synchronous motor 2, at starting, takes current from an auto-transformer 5 through a switch 6 having an actuating coil energized in the lower pcsition of a relay 11. The starting follows from the temporary closure of a pushbutton 17, The relay 11 is controlled by a device 12 which has a coil 13 in series with the field magnet 3, and its exciter 14, and other opposing coils 15, 16 energized inductively by 13. The inductive energization becomes ineffective when synchronous speed is attained, and the device responds directly to the exciter current in 13. The result is to energize the coil of the relay 11, which raises its contact to cut out the starting switch magnet 7 and bring in the running switch magnet 9.
Patent GB-492200-A (GB)
Title: Improvements in and connected with bottles and like containers
IPC: B65D51/00
Filed: 1937-04-15
Abstract: 492,200. Bottle closures. BRITTON, A. B. April 15, 1937, No. 10734. [Class 125 (iii)] A closure for a bottle or like container and particularly for bottles containing substances for use in hypodermic syringes, comprises an inner indiarubber cap 4, Fig. 3, and a rigid cap or cover 2, the bottle neck 1 having a threaded portion 1b and a plain portion 1a of smaller diameter, the apron or skirt 4b of the rubber plug 4 being folded down over the part 1a and the cap 2 being screwed down to hold the cap 4 during sterilization and transit. The cap 2 is provided with a pad or washer 3 of felt or like material which may contain disinfectant and a ring 4c may be formed on the cap 4. The inner plug part of the cap 4 may be dispensed with and a plain cap 5 provided, Fig. 4, or the plug may be employed with a separate cap. The mouth of the bottle 1a may be beaded to prevent the cap 4 from slipping off, while the part 1b may be plain, the cap 2 engaging frictionally therewith.
Patent GB-178317-A (GB)
Title: Apparatus to prevent hammer-blow in water pipes caused by the sudden closing of valves
IPC: F16L55/05
Filed: 1921-04-13
Abstract: 178,317. Merton, H. B. April 13, 1921. Pressure - relieving devices for fhcids.-- Apparatus for preventi n g hammer - blow from being caused in water pipes by the sudden closing o f valves comprises a cylinder A provided with a cup-shaped piston B held in its normal position by a spiral spring C. The bottom of the cylinder is provided with an internally screwed hollow boss F for attachment of the apparatus to the water pipe, the internal diameter of the boss being as large as that of the pipe to which it is connected.
Patent GB-454939-A (GB)
Title: Method of converting metallic aluminium with hydrogen chloride
IPC: C01F7/60
Filed: 1935-04-08
Abstract: In the production of aluminium chloride from metallic aluminium by means of dry hydrogen chloride gas, the process is carried out in the presence of aluminium chloride in a liquid mono- or poly-nuclear aromatic hydrocarbon or a corresponding partially hydrogenated aromatic hydrocarbon, or an aliphatic hydrocarbon substituted by an aromatic radicle, which is suitable for undergoing Friedel-Crafts synthesis.  By simultaneously effecting a Friedel-Crafts reaction, such as the conversion of benzene with ethylene or ethyl chloride, both the formation of the aluminium chloride and the progress of the Friedel-Crafts synthesis are accelerated.  The process may be carried out at a raised temperature, say, at 50--70 DEG  C., and the aluminium chloride to facilitate the reaction may be introduced as an additive compound with for instance ethylene or styrol.ALSO:In the production of aluminium chloride from metallic aluminium by means of dry hydrogen chloride gas, the process is carried out in the presence of aluminium chloride in a liquid mono- or poly-nuclear aromatic hydrocarbon or a corresponding partially hydrogenated aromatic hydrocarbon, or an aliphatic hydrocarbon substituted by an aromatic radicle, which is suitable for undergoing Friedel-Crafts synthesis. The process may be carried out at a raised temperature, say at 50--70 DEG  C., and the aluminium chloride may be introduced as an additive compound, with for instance ethylene or styrol.  By simultaneously effecting a Friedel-Crafts reaction, such as the conversion of benzene with ethylene or ethyl chloride, both the formation of the aluminium chloride and the progress of the Friedel-Crafts synthesis are accelerated.
Patent GB-548106-A (GB)
Title: Improvements in water repellent coating compositions
IPC: C09D167/08
Filed: 1940-06-26
Abstract: 548,106. Urea-aldehyde and polyhydric alcohol-polycarboxylic acid condensation products; ice trays. GENERAL MOTORS CORPORATION. June 26, 1940, No. 10908. Convention date, July 8, 1939. [Class 2 (iii)] [Also in Group XIII] A coating composition having water repellent properties and adhering tenaciously to metal surfaces, e.g. ice trays, comprises a mixture of an alkyd resin and a urea-aldehyde resin in a coal tar solvent and a wax melting above 140‹F. particularly " Stanolind " and carnauba waxes. 90 gs. urea-aldehyde-alkyd resin dissolved in 410 gs. coal tar solvent are mixed with 5 gs. carnauba wax and 15 gs. " Stanolind " wax dissolved in 300 gs. coal tar heated to 300‹F. Ice trays are dipped in the mixture and then heated for 30 minutes to 300‹F. to harden the coating. Synthetic waxes, paraffin wax, and ceresene wax may also be used,
Patent GB-1261495-A (GB)
Title: Catalyst regeneration procedure
Inventor: KLUKSDAHL HARRIS EVDELL
IPC: C10G35/09
Filed: 1970-03-06
Abstract: 1,261,495. Regenerating supported platinum-rhenium catalysts. CHEVRON-RESEARCH CO. 6 March, 1970 [12 March, 1969], No. 10989/70. Heading B1E. Catalysts comprising a platinum group metal and Re on a porous inorganic oxide which have been deactivated under hydroconversion conditions are regenerated by contacting the catalyst with O 2  at a partial pressure of 0.1-2.5 psia at a temperature below 800F until substantially all carbonaceous matter has been removed, then contacting the decarbonised catalyst with O 2  at a partial pressure of 1.0-2.5 psia at 800-900F for at least 0.5h and then contacting the catalyst with O 2  at a partial pressure of 2.5-7.5 psia at 900-1200F for at least 0.5h. If necessary a halide is introduced into the oxygen containing gas while the catalyst is a temperature above 800F.
Patent GB-1372143-A (GB)
Title: Apparatus for positioning a workpiece on a workpiece carrier of  a machine tool
IPC: B23F23/06
Filed: 1972-03-09
Abstract: 1372143 Workpiece supporting; milling gears WERKZEUGMASHINENKOMBINAT "7 OKTOBER" BERLIN VEB 9 March 1972 11025/72 Headings B3B and B3K An apparatus for positioning a circular workpiece having edge teeth, e.g. a gear wheel, comprises a pivotable arm 19 which is fixed in a position for a particular workpiece diameter and a swivelling element 25 which is rotated in a bore in the arm 19 and which includes a detent 40, slidable in the swivelling element 25 so that the swivelling element 25 can be rotated to engage the detent 40 between teeth on the workpiece to position the workpiece regardless of whether the detent initially engages a tooth space or a tooth crest. The element 25 is swivelled hydraulically or by a spring biased single acting piston. The position of the arm 19 is re-set for a different size workpiece. Machine tool details.-The apparatus is part of a workpiece carrier 8 of a milling machine, the carrier 8 receiving a workpiece from automatic loading means at position I, the apparatus positioning the workpiece in the carrier before it is clamped and the carrier 8 pivoted to a machining position II. The carrier 8 includes stops 11, 12 and abutments 13, 14 to limit its pivotal movement. A cylinder 10 pivots the carrier 8. The machine tool includes a milling spindle head 2 with a spindle 3 and tool 4, and a horizontal slide 6 carrying a vertical slide 7 on which is mounted the carrier 8. Microswitches are provided in automatic sequence control of the workpiece carrier.
Patent GB-884471-A (GB)
Title: A single-phase electric motor
IPC: H02K1/27
Filed: 1958-04-08
Abstract: 884,471. Electric motors. LICENTIA PATENT-VERWALTUNGS-G.m.b H. April 8, 1958 [March 11, 1958],No. 11048/58. Class 35. A cylindrical permanent-magnet rotor for a synchronous motor is radially magnetized to form poles N, S on its periphery, these poles being rendered more definite to facilitate starting by toothed soft iron plates 72, 73 on either side. If desired the rotor poles in this embodiment may be uniformly spaced but not alternate, the end plates being appropriately shaped. In a refined form, the outer periphery of the magnet is radially magnetized while the centre is axially magnetized, the two magnetized zones being separated by an annular unmagnetized zone.
Patent GB-1131078-A (GB)
Title: Removable oven door
IPC: F24C15/02
Filed: 1966-03-14
Abstract: 1,131,078. Removable oven doors. TAPPAN CO. 14 March, 1966 [15 Oct., 1965], No. 11117/66. Heading F4W. [Also in Division E2] A drop down oven door 10 comprising outer and inner liners 11 and 12 spot welded together is removably mounted on the oven frame by a hinge assembly at either side, each assembly comprising a mounting bracket 36, a cam lever 37 pivotally connected thereto at 38 by a flange 45, and a cam arm 39 pivotally connected at 40 to the cam lever and passing through a slot in the bracket 36. Each cam lever engages in an elongated channel in the door and a tab 47 on the flange 45 coincides with an opening 23 in the bottom of the door in one partially open position to permit removal of the door. The cam arm which bears on a roller 55 has a notch 59 and a shoulder 58 for respectively holding the door in the fully open position and locating the door in the position for removal thereof, the door being urged to its closed position by a spring 64.