baber/WOPTO huggingface dataset:
Patent GB-500371-A (GB)
Title: Improvements in or relating to liquid-seal valves for vacuum or low pressure containers
IPC: F04F9/04
Filed: 1937-08-18
Abstract: 500,371. Regulating vacuum pumps. GENERAL ELECTRIC CO., Ltd., and SCHIFF, W. Aug. 18, 1937, No. 22670. [Class 8 (i)] [Also in Group XXIX] A liquid-seal valve for the vacuum container of a mercuryvapour electric-con. verter is arranged in a chamber 2, connected by conduits 5 and 6 respectively to a backing pump and a vapour pump, and comprises a U-tube 9 having an electrically actuated displacer 12 in one arm which is adapted to raise the level of the liquid, preferably mercury, in the other arm 8 which terminates in the chamber 2 to seal the end 7 of the conduit 6 leading to the vapour pump. The end of the conduit 6 is arranged directly over the outlet from the U-tube arm 8 so that a rapid sealing of the tube 6 is obtained by the liquid forced up from the arm 8 before the level in the chamber 2 as a whole rises. The solenoid 13 of the electrically actuated displacer 12 is arranged in parallel with the circuit of the motor 14 of the backing pump so that on the pump being shut down the liquid seal valve is actuated to seal the vapour container and maintain the vacuum therein. Contacts 15 in this circuit are also adapted to be broken to effect sealing when the pressure in the chamber 2 rises above a predetermined value.
Patent GB-711373-A (GB)
Title: Improvements in or relating to composite bearings and bearing materials
Inventor: FORRESTER PETER GARNETT
IPC: F16C33/12
Filed: 1951-09-28
Abstract: 711,373. Plain bearings. GLACIER METAL CO., Ltd. Sept. 15, 1952 [Sept. 28, 1951], No. 22689/31. Class 12(1) [Also in Group XXII] A plain bearing or composite material for making a bearing, comprises a backing of steel or steel alloy having a superposed layer consisting of lead or lead base alloy dispersed in a matrix of iron, with a facing layer of soft metal or alloy. A preferred structure is one comprising an interlaced sponge formation of iron and lead, and the product may be compacted so as to be substantially non- porous. The overlay may consist of lead, with up to 10 per cent tin, or with up to 3-10 per cent indium, lead with tin and indium, or. a lead or tin base alloy containing antimony &c., and may be 0.0002 inches to 0.003 inches thick. A barrier layer of nickel &c. 0.0001 inches thick may be applied to prevent tin diffusion. With journals of graphitic cast iron or hard steel a soft overlay may be unnecessary. The bearing or material may be made by sintering iron powder on copper plated steel in a reducing atmosphere so as to form a porous iron structure bonded to the steel, the pores then being filled with lead containing for example 5 per cent tin by re-heating in a reducing atmosphere. In a further method of manufacture a mixture of iron and lead powders is sintered on to the steel backing, and the composite strip is then rolled or otherwise compacted and re-sintered in a reducing atmosphere. When maximum softness is required in curved liners the second sintering operation is deferred until after the forming operation so as to remove any work hardening of the iron matrix. In a further method iron may be sprayed on to the backing. In yet a further modification iron gauze may be copper brazed to a mild steel backing and the lead may be applied in the form of powder or foil, or by strip lining as in Specification 666,528, [Group II], which is referred to. If desired, suf-. ficient lead may be applied to leave a surplus of 0.003 inches to 0.004 inches on the surface to form an overlay after boring. Small amounts of other metals can be added either to the lead or to the iron, e.g. manganese or nickel to the iron powder. In all embodiments, an overlay or facing layer of a soft metal or metal alloy may_ be subsequently applied by electro-deposition or otherwise.
Patent GB-861136-A (GB)
Title: Improvements in or relating to mining hoists
IPC: H02K7/10
Filed: 1957-07-17
Abstract: 861,136. Mounting electric motors. ARNOLD, H. July 17, 1957 [July 17, 1956], No. 22717/57. Class 35. A mining hoist cable drum 13 is on a plate 10 carrying the rotor core 11 and secured to plates 8 with bearing-bushes 6 supported by a fixed shaft 1 which also carries the stator plate 3. The drum has braking surfaces 14. The central radial planes of the drum or pulley, the rotor and the stator all coincide.
Patent GB-938349-A (GB)
Title: Apparatus for developing electrophotographic material
IPC: G03G15/10
Filed: 1961-06-23
Abstract: 938,349. Developing baths. OZALID CO. Ltd., and A. L. ROBERTSON. June 22, 1962 [June 23, l961], No. 22755/61. Classes 98 (1) and 98 (2). Apparatus for use in the liquid development of electrostatic images comprises a trough 3 with a concave base, rollers 5, 6 and 7, 8 for feeding the exposed material into and out of the trough, a roller 9 arranged to rote in the trough with its periphery moving in the same direction as the material and defining with the base a channel for the material, inlet and outlet pipes for the developer, liquid and means for circulating the liquid through the trough so that the lower portion of roller 9 is immersed in the liquid and both outlet rollers are wetted with liquid. In the embodiment shown liquid is pumped from a reservoir through pipes 12 and 20 into the trough and over roller 9 respectively and passes through outlet 14 back to the reservoir. A drain aperture 13 is provided for emptying the trough. The rollers are rotated by means of an electric motor.
Patent GB-149683-A (GB)
Title: Improvements in and relating to reinforced fibre board material and process of producing same
IPC: D21J1/16
Filed: 1920-07-31
Abstract: 149,683. Munroe, T. B. April 3, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Reinforced paper and cardboard; fireproof paper.-Boards are made by passing a reinforcing foraminous material such as wire netting through a tank containing a fibrous pulp comprising several different kinds of fibres such as thick fibres, finer fibres, hairlike fibres, and short fibres such as are used in paper-making and causing the fibres to felt on to the reinforcing-material preferably in the manner described in Specification 141,013. The board is waterproofed by adding to the pulp a resin size and aluminium sulphate. After the felting-process the surplus water is dried out. The boards may be treated with ferrous oxalate or other suitable substance to render them fireproof.
Patent GB-461257-A (GB)
Title: Improvements in and relating to gyroscopes
IPC: G01C19/36
Filed: 1935-08-13
Abstract: 461,257. Gyroscopic apparatus. HOLMES, E. L., and HUGHES & SON, Ltd., H. Aug. 13, 1935, No. 22784. [Class 97 (iii)] The rotor and/or the frame supporting the rotor carry magnets arranged so that the spin axis of the rotor settles parallel to the earth's magnetic field. As shown in Fig. 1, the rotor spindle b is magnetized and a number of magnets c may be embedded in the rim d. As shown in Fig. 3, the frame f in which the spindle b is journalled carries magnets g. A construction is described in which the rotor carrying frame f is pivoted about a horizontal axis perpendicular to the spin axis b in a horizontal gimbal ring, the latter being pivoted in turn about a horizontal axis in a vertical gimbal ring carrying a compass card. Bars intended to represent the horizon may be attached to the ring f.
Patent GB-224870-A (GB)
Title: Improvements in articles consisting partly of quartz and partly of metal
IPC: C03C27/04
Filed: 1924-09-26
Abstract: 224,870. British Thomson-Houston Co., Ltd., (Assignees of Berry, E. R.). Nov. 17, 1923, [Convention date]. Forming silica-glass articles. -A method of joining a metal body, such as a wire 4, to an article 1 of quartz consists in forming a cavity in the quartz, coating the metal with glass 6 which has a coefficient of expansion between that of the quartz and that of the metal, inserting the coated metal body into the cavity and then heating to a temperature sufficiently high to fuse the metal, glass, and quartz to each other. The wires 4 in the article shown are of tungsten or molybdenum and are coated with a sodiummagnesium borosilicate glass.
Patent GB-423114-A (GB)
Title: Improvements in plate heat-exchange apparatus for fluids applicable to coolers for enclosed dynamo electric machines
IPC: F28F1/40
Filed: 1933-08-15
Abstract: 423,114. Air filters. POOLE, R., 1, Arden Park, Bredbury, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Aug. 15, 1933, No. 22819. [Class 8 (ii)] [See also Groups XIII and XXXV] The air in an enclosed dynamo - electric machine is cooled and filtered by circulation through a duct 32 separated from an outer duct 33 through which cooling fluid is circulated by a cylindrical shell to which corrugated sheets of wire gauze &c., are secured, the sheet in the air duct being coated with oil to trap dust from the air.
Patent GB-896062-A (GB)
Title: Improvements in and relating to laminates
IPC: F22G7/06
Filed: 1960-06-30
Abstract: 896,062. Laminates. F.M.C. CORPORATION. June 30, 1960 [July 3, 1959], No. 22901/60. Class 140. Decorative rigid laminates are made by impregnating a single-ply of decorative paper of thickness within the range 4-9 mils with an organic solution of a diallyl-phthalate polymer in the thermoplastic stage containing 2-10% of monomer, a catalytic quantity of an organic peroxide, and a release agent such as lauric acid or bees- or carnauba-wax until the paper contains 53-68% of the diallyl phthalate, drying the paper and laminating it with pressure, and heating if necessary to a core of plywood, hardboard, particleboard, cementasbestos board or cardboard-faced or other gypsum board. The resin content used is dependent on the paper thickness, a 4-6 mil thickness requiring 64-68% of resin and a 9 mil thickness 53-57%. The core may be backed with kraft paper impregnated with a phenolic resin, should be dried before use, and may be pre-roughened. The decorative paper is a pigment-loaded, printed, α-cellulose paper, and after impregnation and drying may be rolled up and stored. Diallyl-phthalate includes di-methylallyl and di-allyl ortho-phthalate and isophthalate.
Patent GB-1169408-A (GB)
Title: An Improved Ground-Covering Mat for the Rapid Construction of Roadways and the like.
IPC: E01C9/08
Filed: 1967-05-17
Abstract: 1,169,408. Temporary roadways. MANNESMANN A.G. 17 May, 1967 [18 May, 1966; 5 Aug., 1966; 20 April, 1967], No. 22903/67. Heading E1G. A flexible temporary roadway comprises an assembly of hollow steel planks which have pivotally interengaging longitudinal edges formed respectively by a tube 15 and an arcuate member 16 welded between upper and lower plates 1, 2, the planks being clamped together by cables or pins 8 threaded through transverse fubes 6.
Patent GB-442448-A (GB)
Title: Improvements in or relating to light current electric switches
IPC: H01H19/62
Filed: 1934-08-07
Abstract: 442,448. Switches held set and freed mechanically. WHYTE, S., Rostherne, Upper Bridge Road, Redhill, Surrey, BROWN, W. J., Danesmoor, Harefield Road, Uxbridge, Middlesex, and HALLAWELL, A. M., Little Gables, Wallington, Surrey. Aug. 7, 1934, No. 22904. [Class 38 (v)] A light current electric switch comprises a contact spring 1 fixed at 3 to an insulating support 2 and held in a slightly strained position by a stop 5. A second contact spring 7 is mounted on the support 2 at a substantial angle to the spring 1 and carries a contact point 10 adapted for engagement with a flat contact 6 on the spring 1. An operating cam 11 of form shown is rotatable on a spindle 15. Initial rotation of the cam causes the contact point 10 to engage the left-hand side of contact 6 and further movement of the cam causes the contact point 10 to slide to the right until the nose 17 of the cam has passed the dead-centre position. The contact point 10 then moves back a short way to the final contacting position in which the flat side 16 of the cam rests on the blade 7. In this way a clean contact surface is preserved. Specification 417,437 is referred to.
Patent GB-205455-A (GB)
Title: Improvements in or relating to foot wear
IPC: A43B5/08
Filed: 1922-04-07
Abstract: 205,455. Plantation Rubber Manufacturing Co., Ltd., and Dessau, M. M. April 7, 1922. Slippers.-A bathing slipper comprises an upper a cut from a sheet of crepe rubber or smoked sheet rubber, a sole b cut from the same material and flat throughout, a sock i also of the same materials or of any other grade of rubber or an equivalent layer of material, such as loofah, treated with raw rubber, and a stiffener m, which is inserted between the sock and the sole to impart resilience to the whole. The assembled slipper is cold vulcanized, as by the Peachey process.
Patent GB-1026281-A (GB)
Title: Electrical conductor
Inventor: ATHERTON KENNETH OWEN
IPC: H01B1/02
Filed: 1963-06-10
Abstract: <PICT:1026281/C6-C7/1> A connection to an anode of an electrolytic cell consists of a casing 8 of titanium or titanium alloy in which is brazed by a layer of one or more of zinc, tin and aluminium a core 7 of copper, iron or steel.  The casing 8 may be an alloy of titanium and one of the following:- up to 14% zirconium, up to 5% platinum, rhodium or iridium or up to 10% tantalum or niobium.  A copper rod 6 having a connection 12 to an electric supply is fixed in the copper core 7.  A titanium casing 8 is welded to a titanium plate 11 coated on its underside with platinum and forming the anode.  The core 7 is brazed in position using zinc at a temperature of 600 DEG C in an atmosphere of argon.  In a modification the casing is cup-shaped and is machined after the brazing. The lower end of the casing is coated with platinum and is force fitted into a bore in a graphite anode.
Patent GB-461433-A (GB)
Title: Improvements in the production of bread and other alimentary products
IPC: A21B1/00
Filed: 1935-08-16
Abstract: 461,433. Bread. SCHULER, R. Aug. 16, 1935, No. 23074. Convention date, March 19. [Class 28 (i)] [Also in Group XII] Dough is proved and then baked under reduced atmospheric pressure in an oven 1 from which the air is exhausted by a centrifugal pump 2 driven by an electric motor M. The pump 2 discharges the exhausted air into a chimney D. The motor speed is variable by a rheostat and the pressure in the oven is indicated by a gauge 4. A needle valve 5 in the door 3 enables the atmospheric pressure to be restored prior to opening the door. The oven may be heated by water-filled pipes.
Patent GB-1070286-A (GB)
Title: Table planing and moulding machine
IPC: B27F5/02
Filed: 1964-06-04
Abstract: 1,070,286. Woodworking. G. SCHULER and E. HORNBERGER, [trading as HORNBERGER MASCHINENBAU - GESELL - SCHAFT OHG.]. June 4, 1964 [Nov. 22, 1963], No. 23174/64. Heading B5L. A machine for shaping panels of wood, chipboard or the like simultaneously on two sides in the course of a single transit of the workpiece through the machine comprises a device 4 for feeding the workpiece, a planing or milling unit having a table 1, guide bar elements 9, 10, and a cutter spindle 2 and drive means therefor, and a unit which is mounted on one side of the planing or milling unit and has an operating spindle 24 displaceable in a plane parallel to the table and in a direction transverse to the feed direction of the workpiece, the unit including a table 12 which forms an extension of the table 1, lies at the same level and is displaceable in a horizontal direction relative thereto. As described, the machine has a planing or milling unit comprising the table 1 on which is a member 8 carrying the guide bar elements 9, 10. The member 8 is adjustable in the direction of the arrow 11a by a device 11, and the guide bar elements 9, 10 are adjustable on the member 8 in the direction of the arrows 9a, 10a, respectively. The workpiece is fed through the machine by the device 4 which consists of a plurality of rollers and is vertically adjustable on columns 5. In-feed and out-feed rollers 6, 7 are secured to the table 1 and have rubber covered surfaces which project a short distance above the surface of the table 1. The spindle 2 of the unit is vertically adjustable and pivotable about an axis parallel to the feed direction of the workpiece. The unit 1, which may be a standard planing or milling machine having its table 1 shortened, carries a guide member 13 for supporting the unit comprising the table 12 which is movable along the member by a screw 13 and has its surface at the same level as that of the table 1. A carriage 25 is movable with the table 12 along a slideway 14. The carriage carries a motor 17 driving the operating spindle 24 which is shown carrying a saw blade 16. The motor is mounted on a slide 19 which is vertically adjustable by a hand wheel 19 and is rotatable by a hand wheel 20 up to 45 degrees to enable oblique cuts to be made. Alternatively, a milling unit can be used in place of the circular saw unit 16, 17. The machine may be used for trimming veneer applied to the upper and lower surfaces of a panel prior to applying a banding to the edges of the panel.
Patent GB-1221693-A (GB)
Title: Improvements in or relating to optical masers
Inventor: SMITH PETER WILLIAM
IPC: H01S3/08
Filed: 1968-05-16
Abstract: 1,221,693. Lasers. WESTERN ELECTRIC CO. Inc. 16 May, 1968 [26 May, 1967], No. 23220/68. Addition to 1,152,077. Heading H1C. The laser described in the Parent Specification is modified by the addition of a beamsplitter 53 in the output path 33 to enable a detector 54 to monitor the output power level P 1 . The output power level P 1 , and the power level P 2  in the resonator 11, 12 as monitored by detector 26, are normalized by a circuit comprising log converters 55, 56, adder 57 and antilog converter 58, the output of converter 55 being negated so that the antilog converter passes a signal having the relationship P 2 /P 1  to a difference amplifier 51. A reference voltage 59 is the second input to the amplifier, and if the output frequency in path 33 deviates from a predetermined value an error signal is applied through a low-pass filter 32 to a piezo-electric transducer 23 controlling the resonator length. By comparison of the monitored power levels P 1  and P 2  the effects of power level changes which are unrelated to frequency, e.g. changes due to power supply fluctuations or active medium characters, are eliminated.
Patent GB-672675-A (GB)
Title: Improvements in coverings for floors, walls, ceilings or like surfaces
IPC: E01C23/14
Filed: 1948-09-03
Abstract: 672,675. Floor and wall coverings. CHAMBERLAIN, Ltd., E. A., and CHAMBERLAIN, J. E. Sept. 1, 1949 [Sept. 3; 1948], No. 23269/48. Class 20(iv) [Also in Group XIII] Floors or walls are covered with a smooth, resilient sound-insulating surface layer by applying to the floor &c. a suspension of fibres in water containing in dispersed form a substantial proportion of bitumen, then felting the fibres into a compact, continuous layer and finally heattreating.the layer in situ. Before laying the material, the surface may be given a coating of an adhesive, preferably one having a bituminous or rubber latex base. The composition 1 is prepared by making a porridge-like mass of water and vegetable fibres and adding aqueous bitumen emulsion, with colouring matter if desired. It is spread over the base surface 2 which has been coated with adhesive 3, and consolidated by a roller device shown in Fig. 3, the device also serving to pick up water expressed from the layer by means of an endless band 6 of absorbent material which absorbs the water from the surface and then passes over a suction chamber 7 into which the water is drawn by the vacuum produced by a fan 9. A heated metal roller or heated metal platen is then drawn over the surface to evaporate the remaining moisture and to cause the bitumen, which represents about 35 per cent of the final coating, to melt or soften to bind the fibres together and give a flat, smooth surface.
Patent GB-918793-A (GB)
Title: Improvements in or relating to cables for transmitting high frequency currents
IPC: H01B11/18
Filed: 1960-07-04
Abstract: 918,793. Cables. MILDNER, R. C. June 27, 1961 [July 4, 1960], No. 23342/60. Class 36. A flexible high-frequency cable includes a transversely corrugated laminated tube 3 formed by landing longitudinally a tape, corrugated before or after bending, comprising a ¢ to 3 mil. thick layer 4 of copper, aluminium or silver, and one or more layers 5, 5-20 mil. thick, of polyethylene, polystyrene, polypropylene or laminate of these with reinforcement such as glass fibre. The plastic layer may be inside, outside or on both sides of the metal layer, the tube may be strengthened by an uncorrugated plastic tube. The laminated tape may form the outer or inner conductor of a coaxial cable or the screen of a cable with conductors side-by-side. The space inside the tube may be filled with plastic material or the corrugations may fit into grooves in inner insulating material 2.
Patent GB-1330830-A (GB)
Title: Motor vehicle headlamp wiper systems
IPC: B60S1/60
Filed: 1972-05-18
Abstract: 1330830 Cleaning headlamp lenses GENERAL MOTORS CORP 18 May 1972 [1 June 1971 26 Nov 1971] 23449/72 Heading A4F A vehicle headlamp lens 10 is provided with a wiper 16 having a length substantially equal to the major dimension of the lens and movable to and fro by an oscillatory wiper arm 24 connected substantially at the mid point of the wiper, and a guide or guides at the lens periphery restrain the wiper ends against movement substantially beyond the lens periphery. In the embodiment illustrated in Figs. 1 and 2 the ends 19 of the wiper 16 engage in slots 20 in a guide ring 15. The wiper blade 16 comprises a steel wire 18 embedded in a rubber blade 17 and is sufficiently flexible to adopt the curvature of the lens periphery when in its extreme positions A, B. Portions of the wire 18 are engaged by the riveted connector which attaches the blade 16 to the arm 24. The arm 24 is oscillated by a hollow shaft 22 driven by an electric motor via a linkage and a crank 32. The arm 24 is engaged in slots 27, 28 in the shaft 22, and is held in position by a spring 29 which also applies wiping pressure to the arm. In other embodiments (a) a guide ring is not slotted (b) the vehicle lens is rectangular and stops are provided at its periphery for engagement by an end or ends of the wiper (c) the wiper mechanisms of two or four headlamp lenses have a common drive. (d) the wiper blade is embraced by a zigzag steel wire spring, and the wiper arm is constituted by a steel strip (e) a guide ring is formed with stops engaged by the ends of the wiper. A washer system may be provided in each embodiment.