baber/WOPTO huggingface dataset:
Patent GB-317849-A (GB)
Title: Gaseous electric conduction apparatus
IPC: H01J17/04
Filed: 1929-08-07
Abstract: 317,849. Raytheon, Inc., (Assignees of Spencer, P. L.). Aug. 24, 1928, [Convention date]. Vacuum tubes.- A gas-filled rectifier having a cold cathode is arranged so that it starts with a glow discharge which changes immediately to an arc, and is capable of withstanding reverse potentials as high as 2000 volts. For this purpose the cathode 15 is of conical or similar shape producing a focal region near one or more anodes 6. The cathode may be of tantalum the active surface of which is coated with solutions of nitrates of alkaline or alkaline earth metals such as barium and strontium, which are subsequently burnt into the tantalum by an intense flame. The anode and the support for the cathode are surrounded by lava insulators 5 mounted in re-entrant tubes 3, providing large cooling surfaces near the seals. The anode is provided with an outer shield 8 and an inner flanged shield 9, each having an aperture slightly larger than the anode. A shield 11 is secured in a groove in the cathode insulator. The filling may be helium at a pressure of 6 mm. The Specification as open to inspection under Sect. 91 (3) (a) states also that the cathode may be of ellipsoidal or paraboloidal shape. This subject-matter does not appear in the Specification as accepted.
Patent GB-191431-A (GB)
Title: Improvements in or relating to depilatory compositions, and the manufacture thereof,for the unhairing of hides, skins and the like
IPC: C14C1/06
Filed: 1921-09-13
Abstract: A composition for use in unhairing hides, skins &c., consists of an alkali bisulphide and free alkali, the latter being insufficient in quantity to convert the bisulphide into the monosulphide.  The composition is prepared by the decomposition of an alkaline polysulphide with caustic alkali.  The sulphur in a finely divided state is dissolved in a strong solution of the alkali heated to about 80 DEG  C. and the further amount of alkali, which is preferably in slight excess of the amount required to convert all the pentasulphide into the bisulphide, is then added. As an example, 40 parts of ground sulphur are added slowly to a solution of 30 parts of sodium hydrate in 50 parts of water at a temperature of 80 DEG  C., and when the action has ceased, a further 45-50 parts of powdered sodium hydrate are added.
Patent GB-1126718-A (GB)
Title: Gas seal between turbine parts
IPC: F01D11/00
Filed: 1967-05-25
Abstract: 1,126,718. Glass compositions; coating with glass. GENERAL MOTORS CORP. 25 May, 1967 [9 Sept., 1966], No. 24410/67. Heading C1M. [Also in Divisions B3 and F1] A gas seal between abutting metal parts in a gas turbine comprises a glass mass having a softening temperature substantially the same as the temperature of the abutting metal parts under gas turbine operating conditions, the glass being such that it softens sufficiently at this temperature to form a viscous mass completely sealing the space between the abutting metal parts. A suitable glass, capable of softening in the range 1700-2000 F., contains by weight per cent Silicon oxide 50-75 Calcium oxide 10-20 Sodium oxide 2-10 Chromium oxide 10-30 An example comprises 59% silicon oxide, 15% calcium oxide, 6% sodium oxide and 20% chromium oxide. The composition is melted and the mixture milled to a powder for forming an aqueous suspension which may be applied by coating, spraying, dipping or by vibration.
Patent GB-1070812-A (GB)
Title: Improvements in or relating to dispensers for strip material
IPC: B65H35/00
Filed: 1965-06-09
Abstract: 1,070,812. Tape dispensers. BETTER PACKAGES Inc. June 9, 1965 [March 29, 1965], No. 24430/65. Heading A4G. A dispenser of tape 26, Fig. 6, has motor 12 driving via chain 18 a feed wheel 22 between which and a lower pinch roller the tape passes to be fed through a spring loaded guillotine cutter 54 and under a feeler 38 carried by a pendulous hub 40 loose on spindle 16 and prevented by the tape from dropping into a hole 36. Spindle 16, Figs. 6 and 7, drives via wheel 74 and belt 78 a wheel 76 which drives via a further belt a wheel 84 having a clutch roller 90 carried by a pendulum 86 pivoted on the axis 80 of wheel 76. The bottom 92 of the pendulum engages a spring centralized rod 96 movable by solenoids 102, 104 at its ends so that, on depressing one of two switches 150, 152, a solenoid swings the clutch roller 90 into engagement with one of the measuring wheels 106, 108. The latter have grooves 130 in which pegs 128 may be adjustably positioned by dial knobs so that the end of the groove follows the peg under the influence of torsion springs associated with each measuring wheel and rotation of a measuring wheel by the clutch roller is predetermined by the positioning of its peg whereby, after the predetermined length of tape has been fed, a pin 136 on the opposite face of the measuring wheel shifts a bar 140 which actuates switch 142 to stop the motor and to de-energize a solenoid 64 so that the spring loaded cutter severs the tape. On removing the tape the feeler moves down and via links 42, 46, recloses switch 142 to restart the apparatus. A stepping switch is provided whereby a sequence of long and short tapes are dispensed, while the dispensing may be automatic or controlled by two push buttons for different lengths or one set length.
Patent GB-1272512-A (GB)
Title: Improvements in safety devices in apparatus such as centrifugal compressors
IPC: F01D21/04
Filed: 1970-05-20
Abstract: 1,272,512. Centrifugal compressors; turbines; engine stop gear. CHICAGO PNEUMATIC TOOL CO. May 20, 1970 [June 4, 1969], No.24452/70. Headings F1C. F1K and F1T. A safety device 23, Fig. 1, shuts down a rotary machine, e.g. a condensing steam turbine or as shown a centrifugal compressor, when the rotor 13 moves dangerously near the casing wall 15. The device comprises a pressurized or evacuated tube 25, having an abradable cap 26, e.g. of leaded brass, protruding slightly into the rotor chamber 14. Abrasion of the cap by the rotor eventually effects venting of pressure fluid from or into the interior of the tube through passage 33, whereby a pressure-actuated switch 22 is actuated to shut down the compressor. The tube may contain pressurized liquid or gas supplied from a source 53 via orifice 52. The source may comprize the lubrication system or hydraulic or pneumatic control system, or the working fluid of the compressor. In a multi-stage compressor a separate safety device may be provided for each stage or for selected stages, the several devices being connected in parallel to a single pressureactuated switch arrangement. The tube is held in position with cap 26 seated against shoulder 29 by the action of nut 41 and associated sealing sleeve 43, or by pressure fluid acting on piston (54), Fig. 2 (not shown), at the tube end remote from the cap.
Patent GB-402029-A (GB)
Title: Improvements in devices for extracting juice from lemons and the like
IPC: A47J19/02
Filed: 1933-09-05
Abstract: 402,029. Extracting juice from lemons and the like. GALLI, U., 10, Rue Faraday, Paris. Sept. 5, 1933, No. 24595. Convention date, June 12. [Class 28 (ii).] A device for extracting juice from lemons &c. consists of a perforated tube T having a piercing point b, resilient blades l<1>, l<2> connected to the tube and normally occupying divergent positions as shown ; and a sleeve B slidable on the tube so that, as it approaches the end b thereof, the blades l<1>, l<2> are pressed against the sides of the tube to enable them to be thrust, with the tube, into the lemon. The hole thus made in the lemon is sealed bv the rim c and the screwed exterior of the sleeve B. When the tube is fully inserted in the fruit, the blades l<1>, l<2> diverge, and rotation of the fruit on the tube ruptures the fruit cells, the liberated juice running out of the spout end a of the tube.
Patent GB-840227-A (GB)
Title: Concrete mixers and agitators
Inventor: CUNNINGHAM WALLACE
IPC: B28C5/42
Filed: 1957-08-02
Abstract: 840,227. Mixing appliances. WINGET Ltd. July 7, 1958 [Aug. 2, 1957], No. 24605/57. Class 86 A vehicle mounted concrete mixer 1 is driven from the vehicle gear-box 19 by means of a power take-off 18, a cardan shaft 16, and a mangetic clutch asembly 8. When the magnetic clutch is energized it rotates a chain sprocket 28 which by means of chain 32 rotates the input shaft of the drum-drive gearbox 35 and through gears 5, 6 rotates the drum 1. The drum drive gear box 35 is controlled by hand lever 36. The magnetic clutch 8 is inter-connected with the vehicle clutch and may also be operated independently from outside the driver's cab by means of switch 37.
Patent GB-606274-A (GB)
Title: Improvements in and relating to resonant cavity devices
IPC: H01P7/06
Filed: 1945-09-22
Abstract: 606,274. Electric resonators. PHILCO RADIO & TELEVISION CORPORATION. Sept. 22, 1945, No. 24629. Convention date, Dec. 16, 1943. [Class 40 (viii)] A cavity resonator comprising a cylindrical steel or like body 11 closed by a diaphragm 21 is corrected for detuning due to changes of temperature by means of a spider 20 made of a metal with a large coefficient of expansion, such as aluminium. The three legs 31 and triangular platform 29 of the spider are made rigid by flaps 41, 39, but flexible bends at 42, 43, enable the platform 29 to be raised with a toggle action when the legs 31 lengthen with rise of temperature. It thus allows the middle of the diaphragm 21 to rise, by raising the invar or like screw 24 which serves for tuning the resonator and co-operates with a spring 51. The movement of the diaphragm compensates the effect on tuning of the expansion of the body 11. Coupling stems 13, 14 enable the resonator to be connected with coaxial lines by means of a probe coupling. A protective cover 48 and a breather hole 30 are provided.
Patent GB-301795-A (GB)
Title: Improvements relating to the cooling of the cylinder heads of sleeve valve internal combustion engines
IPC: F02B1/04
Filed: 1928-08-28
Abstract: 301,795. British Continental Motors, Ltd., (Assignees of Niven, A. M.). Dec. 5, 1927, [Convention date]. Cylinders, cooling. - In a sleeve-valve-engine cylinder-head, the deflecting surface 31 of a baffle 27 which, as described in Specification 294,528, deflects the cooling water from the jacket 24 into the head space 17 is located on one side of the cylinder axis. The upstanding part 20 of the head may have ribs 38 in line with the surface 31, and a joint, with a jacket 35, made watertight by a packing 33 which also makes a joint with the baffle 27.
Patent GB-816205-A (GB)
Title: Fuel oil burners
IPC: F23D3/00
Filed: 1955-08-30
Abstract: 816,205. Liquid fuel burners. LEVEY, L. W. Aug. 20, 1956 [Aug. 30, 1955], No. 24823/55. Class 75(1) In a fuel oil burner of the perforated shell type consisting of interconnected concentric cylindrical perforated shells 21, 22 mounted above a circular channel 6, the inner shell 21 is open at the bottom and closed at the top by a plate 25 having an opening 26 for the air and a transverse baffle 31 is arranged near the lower end of the shell 21 to restrict downward radiation of heat. The plate 25 is of inverted conical shape and carries a similar shaped top member 28, a wire coil 29 being mounted on the perimeter of the member 28. The shells 21, 22 are enclosed in a housing 23 surmounted by a gauze canopy 30. A perforated domed plate 11 is mounted at the base of the shell 21. The baffle 31 has a large central hole 33 and a ring of smaller perforations 34 near the outside edge and is supported by wire clips 35 from perforations in the shell 21. A wick 12 is located in the channel 6 and is fed with fuel from the pipe 13 via a tube 14 closed at the lower end by a cap 19, so that foreign matter deposited therein can be readily removed. The tube 14 has a relatively large radiation area and thereby reduces pre-vaporization of the fuel. Specifications 816,203 and 816,204 are referred to.
Patent GB-840647-A (GB)
Title: Improvements in or relating to grinding machines
IPC: B24B41/02
Filed: 1958-08-01
Abstract: 840,647. Grinding ; trueing grinding wheels. GESELLSCHAFT DER L. VON ROLL'S CHEN EISENWERKE A. G. Aug. 1, 1958 [Aug. 2, 1957], No. 24921/58. Class 60. A machine for grinding the slideways of machine tools comprises a slide 4, Fig. 2, vertically movable on a cross-slide 2 supported for horizontal movement on a cross-arm 1, 32 of the machine, and two grinding discs 8 carried on a shaft 77 driven by and mounted with a motor 12 on a support 6 which is pivotally mounted to the slide 4 and to a yoke 11 carried by the slide. The shaft 77 is belt-driven from the motor 12, the axes of the shaft and motor being on opposite sides of lugs 7, 10 which engage bores in the slide 4 and yoke 11, respectively. The support can be rotated through 360 degrees to present the discs at the correct angle to the slideways of the workpiece by gearing 14, 15 driven by a hand lever 16 or a motor ; slip rings 17 connect the electric-supply to the motor. The slide 4 is vertically adjustable on guideways 5, Fig. 4, on the cross-slide 2 by a hand or motor driven screw 18 and can be clamped in position to dampen vibrations from the motor 12 and the grinding operation by the heads 62 of bolts 63 spring or hydraulically urged into contact with the guides of the slide. On release of the clamping pressure, the guides bear only on rollers 27 which are sprung into contact with the guides for ease of adjustment of the slide. Similar bolts 20 engage the gear 14 to releasably clamp the support to the slide. The cross-slide is resiliently suspended by a piston-andcylinder device 33, 34, the piston of which is secured to a frame 37 having rollers 38 engaging a beam 32 forming part of the crossarm of the machine. The cross-slide is traversed along the cross-arm by a motor 19 driving a gear over a horizontal spindle and is pulled upward against a guide-way 3 by spring-urged guide rollers 40 engaging a guide-way 1. The surface of the grinding discs may be trued by diamonds 53, Figs. 6 and 7, carried on slides 51 independently vertically adjustable by screws 54 on a member 50 which is reciprocated by an adjustable hydraulically-operated piston- and-cylinder device 55. As the slides 51 are adjusted and the diameter of the discs decrease, wipers 56 attached to the slides move over a fixed resistant 57 in the circuit of the motor to vary its speed and keep the peripheral speed of the discs constant ; the speed of the motor is determined by the diameter of the largest disc. A profile corresponding to the V-shape of a slideway on the workpiece may be formed on at least one of the discs by a roller 44, Fig. 5, on an arm 46 which is movable about a pivot 47 by worm-gearing 49 and a screw 48; alternatively, a rectilinearly adjustable slide may be used as a carrier for the roller. The support 6 and slides 2, 4 may be adjusted so that the discs 8, 9 selectively grind the slideways of the workpiece, and a third wheel may be provided on an extension of the shaft 77 to grind an under surface on the workpiece.
Patent GB-378664-A (GB)
Title: Improvements in bath sheets and towels
IPC: A47K10/02
Filed: 1931-09-05
Abstract: 378,664. Figured terry towels &c. QUILT MANUFACTURERS, Ltd. and HORNE, C. M., 107, Portland Street, Manchester. Sept. 5, 1931, No. 24957. [Class 142 (iv).] A figured terry sheet or towel is ornamented by stitching on the plain ground parts thereof cut-out cloth patches having thereon a woven, printed or embroidered design. The figures on the terry sheet &c. are preferably of geometrical shape, such as oval, round, rectangular, or triangular.
Patent GB-775342-A (GB)
Title: Improved method of blasting
Inventor: TAYLOR WILFRID
IPC: F42D1/00
Filed: 1953-05-18
Abstract: 775,342. Blasting methods and apparatus. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 20, 1954 [May 18, 1953], No. 24960/55. Divided out of 775,341. Class 9 (1). To transmit a blasting effect through water in a sealed borehole as in Specification 775,341 a re-utilizable blasting device is used in which a gas-producing charge is separated from a venting head by a rupturable disc. The device has a steel casing 1 containing a charge 13 surrounding an electric igniter 12 with leads connected to electrodes 7, 8 and terminals 10, 11. A fibre washer 9 seals the firing head, in which the terminals are protected by a steel cap 3. The rupture disc 5 rests on a fibre sealing washer 6. Leading from the venting head 4 is a pipe 20 extending through stemming into the borehole and connected by a pipe 19 and non-return valve 18 to a pump 16 having a water inlet 15. Specification 731,096 is referred to. Specification 431,948 is referred to in the Provisional Specification.
Patent GB-747426-A (GB)
Title: Improvements relating to internal combustion engines
Inventor: HERSCHMANN OTTO
IPC: F02B75/02
Filed: 1953-09-10
Abstract: 747,426. Cylinder jackets. HANNOVERSCHF MASCHINENBAU-AKT.-GES. VORM, G. EGESTORFF (HANOMAG). Sept. 10, 1953, No. 25115/53. Class 7(2) In an engine comprising a crankcase 1, Fig. 5, a cylinder head 3, a cylinder 2 and a jacket 5 disposed about the cylinder and spaced therefrom over its entire length. bolts 10 are provided for applying clamping pressure between the head 3 and crankcase 1 to retain the cylinder 2 and jacket 5 in position between oppositely disposed flanges on the crankcase and head. The space 6, Fig. 1. defined by the jacket and the cylinder comprises a scavenging receiver and communicates with a manifold 8 to which is connected a blower 9; the jacket may have a, gasket 11, Fig. 5, at both ends or the lower end may be formed with an outwardly bent rim 12, as shown, which may be bolted to the crankcase with the interposition of a gasket; a material such as rubber may be used for the gaskets, the material being drawn over the jacket rim or vulcanized to it. In a modification, the jacket encloses both cylinders of a two-stroke two-cylinder engine. In another modification, the jacket 20, Fig. 6, of a four-stroke engine and the cylinder 17 define a water cooling space 22. The upper flange may be formed by a stiff plate inserted between the cylinder and cylinder head whilst the jacket is either made of sheet metal or die cast.
Patent GB-436478-A (GB)
Title: Improvements relating to electric discharge devices
IPC: H01J17/14
Filed: 1934-08-31
Abstract: 436,478. Electromagnets. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and FRANCIS, V. J., c/o General Electric Co., Wembley, Middlesex. Aug. 31, 1934, No. 25123. [Class 35] [See also Group XL] To prevent the upward movement of the constricted discharge of an electric discharge device, at least one pair of elongated pole pieces are so arranged alongside the device that, when the axis of the device is inclined to the vertical, the field in the region surrounding the axis has a substantial component which is perpendicular both to the axis and to the vertical. A high-pressure discharge lamp 1, Fig. 1, has a mercury filling and an outer envelope 2. Two pole pieces 3 in the form of flat strips, which may be laminated, are arranged below the lamp in such manner that the line midway between them is contained in the vertical plane which passes through the axis of the lamp. The strips are clamped, at their bent ends, between the laminations of cores 4, each of which is surrounded by windings 6 and are joined by a yoke 7. In another form, the pole pieces 3, Fig. 4, are joined at their centres by the yoke 7, which carries the windings 6, and are joined at their ends by brass cross-pieces 8 which carry the terminals 10 for the windings 6. Tappings are provided on the windings which may be energized by continuous or alternating current.
Patent GB-334368-A (GB)
Title: Improvements in and relating to wheels for vehicles
IPC: B60B5/04
Filed: 1929-08-17
Abstract: 334,368. Lang, A. A. D. Aug 17, 1929. Tyre attachments to rims.-A device for converting an ordinary motor road-vehicle wheel for use on rough land consists of an outer metal tyre d, an inner metal rim a shaped to be interchangeable with a pneumatic tyre rim on the existing wheel rim g, and a wooden filling-ring e pressed into place and held, mainly or wholly, by friction. The ring e is preferably of laminated form, and built up from sectors arranged to break joint.
Patent GB-651063-A (GB)
Title: Improvements in or relating to fluid-tight mountings for pipes
IPC: F16L5/08
Filed: 1948-09-27
Abstract: 651,063. Jointing pipes to plates. STANDARD OIL DEVELOPMENT CO. Sept. 27, 1948, No. 25187. Convention date, Dec. 20, 1947. [Class 99(i)] [Also in Group XXI] A pipe 13 is supported in a fluid-tight manner within and spaced from an outer member, such as a casing, by an annular member A which has an upwardly-facing, outwardly - tapered bore and a co-operating packing B therein, the packing having radially arranged segments 14 each provided with an inner toothed face 16 and an outer wedge-shaped face 15, and the segments being secured together, e.g. by bonding, by a readily deformable material 18. such as rubber, which covers at least part of the inner face of each segment. As shown, the packing B is formed with handles 19 and has openings adjacent teeth 17. In a modification, Fig. 5 (not shown), a plate is bolted to the member A and is threaded to receive screws adapted to bear against a washer in contact wth the packing.
Patent GB-647042-A (GB)
Title: Improvements in or relating to gas-turbine engine installations
Inventor: OWNER FRANK MORGAN
IPC: F02C7/32
Filed: 1948-09-27
Abstract: 647,042. Gas turbine plant. BRISTOL AEROPLANE CO., Ltd. Sept. 27, 1948, No. 25205. [Class 110(iii)] In a gas turbine plant comprising two independent turbine rotors, working fluid is extracted between the rotors for driving an auxiliary turbine. Two similar plants on an aeroplane wing 1 have, each, a turbine 7 driving an axial-flow compressor 4 and a turbine 8 driving an airscrew 11. Working fluid is extracted between the turbines by pipes 20 and led to a ring chamber 19 from which it passes to an inward-flow radial turbine 13. The turbine 13 drives auxiliaries 15, 16, 17 for the turbine plants and/or the aircraft. Valves 18 may be manually controlled together or separately or be controlled by a speed-governor. The exhausts of all the turbines are led to propulsion jets.
Patent GB-1029007-A (GB)
Title: Improved escutcheon plate for a lock
Inventor: JOHANSEN JAN
IPC: E05B15/02
Filed: 1964-06-18
Abstract: 1,029,007. Escutcheon plates. A.S. GRORUD JERNVAREFABRIK. June 18, 1964, No. 25257/64. Heading E2A. An escutcheon plate for a keyhole or doorlock comprises a disc-shaped base 1 with an opening 3 aligned to the key or lock spindle hole and a thin cover disc 10 adapted to fit onto the base and having a hole in correspondence with the base opening, the base having an upstanding boundary rim 5 with an undercut at its inwardly facing side and a cut-away 9 around the boundary of the base to give flexibility to the base to permit the cover to snap fit into the base and be retained by the rim. The base is fixed to the door by screws through holes 4 and the rim has a gap to give access for a prising tool. A further recess 7 may be made inside the rim to increase flexibility of the rim.
Patent GB-1440962-A (GB)
Title: Production of justified punched tapes for controlling  typesetting machines
IPC: B41B25/00
Filed: 1973-05-25
Abstract: 1440962 Strip perforating machines MERGENTHALER-LINOTYPE GmbH 25 May 1973 [29 May 1972] 25268/73 Heading B6W Justified punched tapes 27-30 are produced by non-justifying perforators 3-6 which have their keyboards 7-10 linked to the inputs of a time-division multiplex operation central computer and their punch units 23-26 linked to the outputs of the computer. The computer is programmed for justification, hyphenation, line division, and error correction and services the perforations simultaneously. A reading device 2 supplies the computor with justifying, etc. data.