baber/WOPTO huggingface dataset:
Patent GB-481964-A (GB)
Title: Filaments for electric incandescent lamps and method of manufacturing the same
IPC: H01K3/02
Filed: 1936-08-17
Abstract: In the manufacture of coiled filaments, suitable for use in electric incandescent lamps, from drawn tungsten wire inclined to the formation of long crystals, the coiled filament material is subjected for a period of not more than half a second to heat-treatment at a temperature which is below the melting point of tungsten but not less than 2800 DEG  C.  The filament before this treatment may be subjected on a mandrel to a heat-treatment at a temperature below the recrystallization temperature, but not less than 1000 DEG  C., e.g. about 1100 DEG  C. or with or without a preliminary heating to 600-900 DEG  C.  When the double heating is used, the second heating is carried out after the removal of the material from the mandrel. The short heating at high temperature is effected by passing through the material a sudden surge of current either by supplying the current through a transformer of poor regulation, or by discharging a condenser through the filament, either directly or through a series inductance.  The filament has a sag, in use, of less than 5 per cent, and the wire has a fine-grained structure with a most probable crystal size of from one to ten thousandths of a millimetre. Specification 234,489*, [Class 39 (ii)], is referred to.
Patent GB-1465025-A (GB)
Title: Substituted phenylisothioureas a process for their preparation and their use as medicaments
IPC: A61K31/155
Filed: 1975-05-23
Abstract: 1465025 Phenylisothioureas BAYER AG 23 May 1975 [16 July 1974] 22680/75 Heading C2C Novel compounds (I) in which R and R<SP>1</SP> are different from one another and alternatively represent one of the radicals in which R<SP>4</SP> represents hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted amino, optionally substituted alkoxy and optionally substituted aralkyl, R<SP>5</SP> represents optionally substituted alkyl, optionally substituted aralkyl, optionally substituted alkenyl and optionally substituted alkynyl, R<SP>6</SP> represents hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aryl, optionally substituted aralkyl, optionally substituted alkenyl and optionally substituted alkynyl, and wherein R<SP>2</SP> and R<SP>3</SP> can be identical or different and represent hydrogen, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted amino, halogen, halogenoalkyl, cyano, optionally substituted alkylthio, optionally substituted acyl and optionally substituted carbalkoxy and wherein X represents an oxygen atom, a sulphur atom, the SO group or the SO 2  group, are made by alkylating compounds (II) or by reacting compounds (IV) (obtained from the corresponding nitro compounds) with Pharmaceutical preparations useful as anthelmintic agents contain (I) as active ingredient; standard forms of administration are described.
Patent GB-623092-A (GB)
Title: Photographic lighting and control apparatus
IPC: G03B15/02
Filed: 1946-07-31
Abstract: 623,092. Lamp shutters. SCHNEIDER, W. M. July 31, 1946, No. 22800. [Class 75(iv)] [Also in Group XX] A lamp with a reflector and shutters or blades mounted on the reflector so as to obscure the light is operated, in conjunction with the operation of a camera shutter, so as to open the camera shutter and the lamp shutters, either synchronously or successively, and close them again, instantaneously or after a time interval, to permit camera exposure. The lamp is of floodlight type and may be continuously lit, or may be switched on by the same operation as that used to open the shutter. Fig. 1 shows the camera 20 with shutter mechanism 22 and lamp 40 with reflector 39 to which are attached shutter blades 67 (Figs. 6 and 7), both camera and lamp shutters being connected by flexible cable control to hand operated plunger means 26 in which pressure on knob 38 opens all shutters and these are closed again either by release of knob 38 or by an escapement mechanism indicated at 76 which has provision for various periods of exposure.
Patent GB-465452-A (GB)
Title: Improvements in and relating to arc lamps
IPC: C22B1/24
Filed: 1936-08-19
Abstract: 465,452. Arc lamps. OPTICOLOR AKT.-GES. Aug. 19, 1936, No. 22837. Convention date, Aug. 19, 1935. Addition to 456,204. [Class 39 (i)] In an arc lamp of the type disclosed in the parent Specification, particularly a reflecting arc lamp, in which the peripheral surface or jacket of the positive electrode is protected by a cooled sleeve extending substantially up to the burning end of the electrode from any initiation of the discharge on such surface, and in which the luminous crater of the arc is stabilized on the end surface of the electrode by a magnetic field which symmetrically surrounds the axis of the arc and extends in the direction of the current path of the discharge, means are provided by which the arc may be surrounded on all sides by a current of air which guides and holds the arc together. In the form shown, the positive carbon 1 is surrounded by the sleeve 2 having water-cooling chambers 3, 4. A coil 11 provides the stabilizing magnetic field. Compressed air is supplied to the front chamber 6, from which a, conical blast of air issues through the annular nozzle 5 and surrounds the arc. Spring-loaded plungers 10 convey current to the carbon. The negative electrode 12 has a core 13 of good conducting material or may be copper coated, and is provided with a conical water-cooled sleeve 14. The exhaust gases from the arc are drawn away through the annular pipe 19. Deposits on the reflector 20 are prevented by radial or spiral currents of air blown over it through nozzles 22. It may be necessary to have a second or third conical jet surrounding the arc and the first jet; for example holes 21 may be provided in the front wall of chamber 6 and symmetrically surrounding the arc. The jacket 2 is coated with oxidized aluminium. The lamp is specially suited for use with carbons in which flame arc materials are enclosed in a thin graphite jacket 8. The air jet prevents the arc forming on this jacket and burning it away, the exact form of the crater being preserved. This enables rectangular carbons to be used, to give a more economical image for cinematograph projection. The current intensity may approach 2'6 6 amps./mm<2>. In a modification shown in Fig. 4, radial stops 23 are provided in the nozzle 5 which press against the carbon jacket and locate the carbon more precisely. In this case the carbon is preferably rotated, to ensure uniform burning. Reference has been directed by the Comptroller to Specification 456,204.
Patent GB-1303505-A (GB)
IPC: H03F3/30
Filed: 1970-05-12
Abstract: 1303505 Transistor amplifiers PHILCO-FORD CORP 12 May 1970 [12 May 1969] 22864/70 Heading H3T An amplifier comprises transistors T3, T4 with their emitter-collector paths in series, a further transistor T2 providing a push-pull input to transistors T3, T4, and a bias network 46, 48, 50 coupled to the junction point 25 to maintain the transistor T2 in class A conditions. The transistors T3, T4 operate under class B conditions, and when T4 saturates, the fall in potential at point 25 decreases the bias on T2 to bring it out of saturation. Punch-through of the emitter collector paths of transistors T3, T5 is prevented by diode 30, and diode 16 acts as a clipper and maintains the bias on transistor T1 below that value which would allow saturation.
Patent GB-753101-A (GB)
Title: Improvements in a rotatable table mounting for a boring mill or the like
IPC: B23Q1/26
Filed: 1954-08-06
Abstract: 753,101. Locking-nuts. AMERICAN STEEL FOUNDRIES. Aug. 6, 1954 [Aug. 17, 1953], No. 22940/54. Class 89 (1). [Also in Groups XXII and XXXIV] In a machine-tool table-mounting (see Group XXII), a nut 36 carries a wedge 40 which is forced against the threads of the coacting stud 16-by a taper-ended screw 44 and a ball 46.
Patent GB-225943-A (GB)
Title: Improvements in unidirectional driving devices
IPC: F16H33/12
Filed: 1923-09-13
Abstract: 225,943. Constantinesco, G. Sept. 13, 1923. Variable-speed gearing.-Relates to means for giving stability to a unidirectional driving-device forming part of a variable-speed gear rendered automatic by an oscillating mass, as described in Specifications 185,022, 206,204, and 218,406, or driven from a reciprocating member such as an engine piston which has to be retained in a mean position. It comprises a linkage for supporting and guiding a ratchet-driving pivot such as k, Fig. 1. In one form, the pivot k is connected by a simple link l to a fixed pivot m, so that the ratchet-driving pivot is constrained to move in a circular arc. The ratchets are shown at x, y, the driving crank at a, and the oscillating mass at f, g. In another arrangement shown in Fig. 5, the pivot 84 drives the ratchets 93, 94. The pivot 84 is guided in a closed curve 100 by a triangular frame 85, 86, 87 which is connected at its other corners 82, 83, by links to fixed pivots 80, 81. Arrangements with more complicated guided paths are described. The gearing may be duplicated for differential driving. Specification 206,700 also is referred to.
Patent GB-831834-A (GB)
Title: Improvements in or relating to electric cable outlet devices
IPC: H01F27/04
Filed: 1957-07-19
Abstract: 831,834. Junction-boxes. COMPAGNIE GENERALE D'ELECTRICITE. July 19, 1957 [July 19, 1956], No. 23001/57. Class 38 (1). A cable box attached to the side of a tank containing an oil-immersed winding 10 comprises a metal elbow 1 containing a high-tension terminal 4 for the external cable and which is connected to the winding by a flexible cable 7, said cable 7 being surrourded by a metal shield 8 detachably supported at one end by the insulation of the winding and at the other end by the terminal.
Patent GB-211518-A (GB)
Title: Improvements in and relating to lock stitch sewing machines
IPC: D05B57/12
Filed: 1922-08-24
Abstract: 211,518. Harman, F. T. J. Aug. 24, 1922. No Patent granted (Sealing fee not paid). Sewing - machines; needles, driving; governing needle - thread. - A cross-head g mounted on the noodle-bar h cantains two profiled slots f, i, in which engage respectively a crank-pin roller e on the top-shaft a and a roller j on a take-up lever l pivoted at m.
Patent GB-1096239-A (GB)
Title: Means for balancing a rotary or oscillatory fly-wheel
IPC: G04D7/08
Filed: 1966-05-24
Abstract: 1,096,239. Clocks and watches. E. BAUCHES S.A. May 24, 1966 [June 21, 1965], No. 23031/66. Heading G3T. [Also in Division F2] A means for balancing a flywheel comprises a ring 6, the axis of which is parallel to the flywheel axis, and a disc 7 enabling the ring to be secured in an eccentric position along any radial direction with respect to the centre of rotation of the flywheel so that by moving the ring along a radius angularly disposed 180 degrees from the radius passing through the centre of gravity of the flywheel, the unbalance of the flywheel is corrected. In a first embodiment, the flywheel, which may be the balance wheel of a timepiece, comprises two plates 3 fixed to a hub (1), Fig. 2 (not shown), mounted on a spindle (2). A permanent magnet 4, as used in conjunction with devices (not shown) for electrically maintaining the oscillation of the balance, and a counter weight 5 are attached to each plate. A split washer 8 secures the disc 7 to the spindle (2) and arms 7a of the disc press resiliently on the ring 6. In a second embodiment, Figs. 3, 4 (not shown) the balancing ring (10) is gripped in position on the flywheel (9) by'a disc (12) of plastics material fixed to the shaft (13) of the flywheel. After balancing the flywheel, heat and pressure are applied to the disc so that the ring (10) embeds itself in the disc. Alternatively the ring may be glued to the flywheel.
Patent GB-679640-A (GB)
Title: Improvements in or relating to collapsible trays or boxes
IPC: B65D5/30
Filed: 1949-09-06
Abstract: 679,640. Collapsable boxes. SUTHERLAND PAPER CO. Sept. 6, 1949, No. 23061/49. Class 18 A collapsable trap or box formed of an integral blank, comprising bottom, side and end wall panels 1, 2, 3 and hinged corner flaps 6 on the end walls for embracing the side walls in erected position, has the bottom edges 9 of the corner flaps spaced from and outwardly inclined relative to the end edges 8 of the side walls in the flat condition, so as to facilitate entrance of the bottom edges through inclined side wall slits. 10 which are open at the end edges of the side walls and have outer portions 11 disposed at a less angle than their inner portions. As shown, the corner flaps have inwardly extending slits 14 aligned with the lower edges of inwardly inclined notches 13, and when the box is erected, tongue-like portions 15 of the corner flaps engage the inner faces of the side walls: while the bottom edges of the notches 13 and slits 14 engage the upper edges of the slits 10. In a modification, Fig. 6, the end edges of the side walls have inwardly inclined inner portions 17 terminating at the slits 10. Specification 656,408 is referred to.
Patent GB-406025-A (GB)
Title: Improvements in strainer systems for filters
Filed: 1932-08-17
Abstract: 406,025. Filters. PATERSON ENGINEERING CO., Ltd., and SMALLEY, W., Windsor House, Kingsway, London. Aug. 17, 1932, No. 23105. [Class 46.] A strainer system for collecting filtrate and supplying wash water in filter beds comprises a longitudinal channel a, Fig. 1, covered with preformed concrete or like blocks or tiles b to which lateral strainer pipes e are secured. The outer ends of the pipes e open into channels p. The tiles b may be of inverted U -form with flanges c. An air-supply pipe i with connections k may be arranged above the tiles. As shown in Fig. 3 an air duct h is incorporated in the tiles. The channels p may be formed of L-shaped or angle tiles with perforations n.
Patent GB-669978-A (GB)
Title: Improvements in or relating to electrostatic coating method and apparatus
IPC: B05B5/08
Filed: 1947-08-20
Abstract: <PICT:0669978/III/1> In apparatus for coating articles by electrostatic deposition the articles 10, Fig. 1, are conveyed through a booth 1 between ionising electrodes 5, 6; 8, 9 and are sprayed with coating material by two guns or banks of guns 21, 28 arranged at opposite sides of the path of the articles and at opposite ends of the booth so as to direct their sprays in opposite directions the arrangement being such that the regions at which the opposed streams cross the path are spaced far enough apart to prevent or reduce interference between the streams.  At the coating zone 5, 6, the articles are heavily coated on the edges 22 facing the guns 21 and more lightly coated on the sides and rear faces and at the further coating zone 8, 9 the edges 27 are heavily coated and the other parts are lightly coated.  The second coating is applied before the first coat has dried so that the two deposits are blended and a layer of very uniform thickness results on all surfaces of the articles.  Electrodes 5, 8; 6, 9 may be united into a single pair of electrodes, or either 5, 6 or 8, 9 may be united at the bottom to provide a trough-shaped electrode.  Each electrode 5, 6; 8, 9 consists of corona discharge wires 7, 7 carried on frames.  Two columns of air are drawn in from the inlet and outlet of the booth and expelled via chambers 31 leading into a single duct, Fig. 2 (not shown), to further reduce interference between the two streams and so to aid the deposition.  The articles may be automobile window frames and are arranged obliguely at an angle of about 45 degrees to the direction of travel but in parallel overlapping relation to one another.  They are carried on spring hooks.  The guns 21, 28 may be parallel to the articles or at a slight angle to them (up to 15 degrees).  In a modification, Fig. 5 (not shown), the paths through the two coating zones are at right angles and a single exhaust chamber is provided to cause two columns of air to pass through the apparatus from the inlet and outlet of the booth respectively.
Patent GB-709294-A (GB)
Title: Improvements in or relating to a refractory core for a helical resistance element and an electrical immersion heater
IPC: H05B3/16
Filed: 1951-10-04
Abstract: 709,294. Electric immersion heaters. TRAUTMAN, O. C. Oct. 4, 1951 [July 25, 1951], No. 23171/51. Class 39 (3) A cylindrical refractory core A for a resistance helix 7, e.g. in an immersion heater in a lead bath, has a plurality of circumferentially spaced, helically arranged, radially projecting fins 9, and a plurality of circumferential, radially projecting ribs 13 longitudinally spaced on the core and projecting radially beyond the fins 9. The core A of the heating element comprises ceramic cylindrical sections 8, 12 alternately positioned on a metal rod 15, the sections 8 having spaced fins 9, 10, helically arranged on their surface, and the sections 12 having a continuous helical rib 13. The fins 10 and ribs 13 extend outwardly the same distance beyond the fins 9 to locate the core in a tube 1 in a container 2, e.g. the melting pot of a lead bath. The convolutions of the resistance helix 7 are positioned between adjacent ribs and fins, one end of the helix 7 being welded at 17 to the rod 15, and the other end to a strap 18 at 19, the rod 15 and strap 18 being taken out to suitable terminals. Refractory spacers 21, 23 are threaded on the tube 15, which is of reduced diameter at 24 to facilitate the bending of the core, with the tube 1, in the pot 2.
Patent GB-442658-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C2/344
Filed: 1935-08-17
Abstract: 442,658. Yielding shaft couplings. JOHNSON, J. P., 3015, East 61st Street, Cleveland, Ohio, U.S.A. Aug. 17, 1935, No. 23193. Convention date, March 14. [Class 80 (ii)] [See also Group XXVI] A rotary pump shaft 28 is coupled to a driving-shaft 66 by means of a sleeve 59, secured to the shaft 28 by a pin 61, and a member 62 provided with a flange 57, the two being connected by a laminated blade 64 which extends diametrically through slots in the collars 58, 59, 62. A modified coupling, Fig. 6, has axially-extending blades 75, the ends of the members 70, 72 being provided with clearances 76. A metallic cover plate 65 has its ends bent over to prevent axial separation of the collars 59, 62.
Patent GB-1036203-A (GB)
Title: Photographic camera having the shutter release carried by the camera body
Inventor: FRIEBE HERMANN
IPC: G03B9/58
Filed: 1963-06-11
Abstract: 1,036,203. Shutter release means. CARL ZEISS JENA VEB. June 11,1963, No. 23230/63. Heading G2A. The shutter release is actuated by a button 3 slidably fixed to the rear wall 1 of the camera 2. As shown, it may conveniently be slid to the right by the operator's right thumb, but it also has a threaded socket 5 for the attachment of a cable release. The tip of the cable abuts against a lug 6 on the rear wall 1, so causing the button 3 to slide.
Patent GB-691128-A (GB)
Title: Improvements in or relating to waveguide devices
Inventor: HARVEY ARTHUR FRANK
IPC: H01P3/12
Filed: 1950-09-22
Abstract: 691,128. Making electromagnetic waveguides. MINISTER OF SUPPLY. Sept. 19, 1951 [Sept. 22, 1950], No. 23335/50. Class 83 (ii). [Also in Group XL (b)] In a method of making waveguides, (see Group XL (b)), a conducting body is electrolytically deposited on an accurately formed mandrel and the external cross-section is machined on the body in accurate relationship to the internal surface thereof. A coating of silver built up to the required size by copper is deposited on a rectangular mandrel of stainless steel, chromium-plated mild steel or molybdenum and is turned to circular external crosssection on the mandrel which has accurately positioned turning centres. Alternatively the body may be removed from the mandrel and located for turning by tapered plugs inserted at its ends and having accurately positioned centres. The wave-guide lengths so formed are joined together by soldering the ends inside cylindrical flanges which may be separate rings or machined as spigot ends on the bodies.
Patent GB-1380018-A (GB)
Title: Bib
IPC: A41B13/10
Filed: 1973-05-16
Abstract: 1380018 Bibs J HJERL 16 May 1973 [26 May 1972] 23397/73 Heading A3V A bib is formed by cutting a neckline 2 in a blank of soft weldable -sheet material such as plastics coated paper, the two halves of the lower edge 5 of the blank being joined together to form a pocket, and the outer side edges of the blank being provided with plastics stiffening tapes 3 extending to the centre of the upper edge of the pocket. If desired, further plastics tapes 4 may extend along the neckline edges to the centre of the pocket upper edge.
Patent GB-1203478-A (GB)
Title: Agricultural device
IPC: A01B63/26
Filed: 1968-05-16
Abstract: 1,203,478. Agricultural implement. MASCHINEN FABRIK RAU oHG. 16 May, 1968 [17 May, 1967], No. 23400/68. Heading A1B. An agricultural device adapted to be attached to the rear of a tractor comprises a main frame 1 to which an agricultural implement e.g. a spring harrow A1 is attached, an auxiliary frame 3 pivotally connected to the main frame and which carries a ground engaging crumbling roller 5 which may be adjusted vertically. The rod 8 may be adjusted longitudinally by means of crank 11 acting on the screw 10 and nut 9 connection between the rod and main frame consequently vertically adjusting the roller 5. The agricultural implements may be rotary hoes, grubbers, spring tooth harrows or ordinary harrows which latter harrows are attached to the main frame by chains.
Patent GB-1077752-A (GB)
Title: Improvements relating to semiconductor devices
IPC: H01L29/00
Filed: 1964-06-05
Abstract: 1,077,752. Semi-conductor devices. HIT-. ACHI SEISAKUSHO KABUSHIKI KAISHA. June 5, 1964 [June 6, 1963; June 24, 1963], No. 23462/64. Heading H1K. The density of carriers induced by the formation of an insulating layer on a semi-conductor body is controlled, after the formation of the layer, by an electro-thermal treatment. The treatment involves the simultaneous application of heat and an electric field applied between the semi-conductor body and an electrode on the insulating layer. If the potential source producing the field is connected in a sense which forward biases the junction formed between the inversion layer arid the body, the carrier density is eventually reduced to a minimum value which is constant between similarly formed insulating layers whatever the initial density of induced carriers (The same result may be achieved less quickly if the body and electrode are merely shorted together during the application of heat.) Useful devices may be made which function with the induced carrier density at this minimum value but by reversing the polarity of the field and reheating the assembly it is possible to increase the induced carrier density within a wide range of values in a controllable manner. The Specification describes silicon-silicon oxide devices in the form of IGFET'S in which the carrier density in the channels is tailored to obtain particular characteristics and in the form of M.O.S.-diodes of the type with a voltagecapacitance characteristic having a constant Capacitance part within which is a pronounced valley, the position of this valley with respect to the applied voltage being determined by control during manufacture of the carrier density under the oxide.