baber/WOPTO huggingface dataset:
Patent GB-1140451-A (GB)
Title: Improvements in or relating to moulds for use in metal casting
Inventor: DUNLOP ADAM
IPC: B22C9/12
Filed: 1966-03-09
Abstract: 1,140,451. Carbon impregnated moulds. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. 17 March, 1967 [9 March, 1966], No. 10282/66. Heading B5A. [Also in Divisions C1 and C3] A carbon-impregnated mould is made by impregnating a refractory mould with hydrocarbon gas or vapour which is caused to dissociate to form carbon. In examples the following steps are performed: (1) the mould is made by the lost-wax process or pressure-moulding; (2) it is optionally placed in a container of heatresisting material, which is then purged with an inert gas; (3) the mould, or the container containing it, is then placed in a furnace and heated; (4) if step (2) is omitted, the furnace is then purged with an inert gas; (5) the hydrocarbon gas or vapour then impregnates the hot mould so that the heat of the mould causes decomposition of the hydrocarbon and deposition of finely-divided carbon on the surface and in the pores of the mould. The mould may be made from sand e.g. from zircon + sodium silicate followed by CO 2 -hardening; or by shellmoulding by dipping a wax replica into partiallyhydrolysed ethyl silicate solution plus aluminium silicate, dusting with refractory powder, and hardening with NH 3  gas or air-drying, and repeating about 7 times; or from carbon powder, wax, and a carbonizable synthetic resin e.g. a phenolic resin, the wax and resin being carbonized during impregnation. The hydrocarbon may be acetylene, propane, or butane, or benzene which is vaporized by the passage of nitrogen. The furnace temperature may be 825 or 885 C. An impregnated sand mould may contain e.g. 2-19% C. by weight. The mould may be used for highly refractory metals, e.g. Ti or Zr.
Patent GB-1181080-A (GB)
Title: A Machine for Cutting Elongated Material
Inventor: HALL FREDERICK WILLIAM NELSON
IPC: H02G1/00
Filed: 1967-03-03
Abstract: 1,181,080. Dividing by a single blade. DEVELOPMENT ENG. (LONDON) Ltd. 4 March, 1968 [3 March, 1967], No. 10291/67. Heading B3W. A device for cutting elongated material, e.g. telephone cable, comprises a frame 1, a fluid pressure operated blade 14 and jaws 15 pivoted to the frame at 16 and arranged one at each side edge of the blade and its support 13. The blade is guided in grooves (23), Fig. 1, not shown, in the jaws which towards the free ends 22 of the jaws merge into slots (17). At the beginning of a cutting stroke the jaws 15 are open (not shown), shoulders 19 on the support 13 being located above abutments, e.g. rollers 18 on the upper ends of the jaws and inclined edge portions 20 on the blade being in engagement with shoulders 21 on the inner surfaces of the jaws. In use the cable to be cut is inserted between the open lower ends 22 of the jaws. As the cutting stroke begins the shoulders 19 force the rollers 18 outwards, completely closing the jaws under the cable before cutting begins. At the end of the cutting stroke parts of the blade 14 project through slots (17). Compressed air is the preferred fluid pressure medium and its supply to the cylinder 7 on a double acting ram assembly is controlled by a valve (8), (Figs. 1 and 3, not shown) operated by a lever 10 spring-loaded to inoperative position. Oil or other hydraulic fluid may be used. The device is supported by wheels 3 and a foot (5), Fig. 1, not shown.
Patent GB-1106932-A (GB)
Title: The preparation of pharmaceutical products
Inventor: PIGOT HERBERT FREDERICK
IPC: A61J3/02
Filed: 1965-03-11
Abstract: A pharmaceutical product is prepared from a pharmaceutically effective powder, e.g. a pulverized urea formic iodide and an organic liquid, e.g. a low-boiling petrol ether, ketone or acetate or a low-boiling halogenated hydrocarbon, e.g. a chlorinated and fluorinated hydrocarbon.ALSO:A method of preparing a pharmaceutical product comprises the steps of subjecting a pharmaceutically effective powder together with an organic liquid to serve as a carrier for the powder, to the action of a vibratory mill, Fig. 1 (not shown) and injecting the slurry produced into a container under pressure wherein the organic liquid serves as a pressurised propellant or as a constituent of a propellant for dispensing the liquid from the container.  The extra propellant is added to the slurry after grinding e.g. prior to the slurry being injected into the container.  A sample is taken of the slurry immediately after grinding.  The slurry is fed after grinding to a reservoir (18) Fig. 1 (not shown) and is fed from the reservoir to an injection apparatus, Fig. 2 (not shown) for injecting measured quantities of the slurry into pressured dispensing containers.  The slurry may be injected into a closed pressurised dispensing container by reverse flow through the valved head of the container.  A modified apparatus is described Fig. 3 (not shown) including two grinders. The powder may be pulverized urea formic iodide and the organic liquid a low boiling petrol ether, ketone or acetate or a low boiling halogenated hydrocarbon, e.g. a chrlorinated and fluorinated hydrocarbon.
Patent GB-1459671-A (GB)
Title: Resilient mountings
IPC: F16F1/38
Filed: 1974-03-07
Abstract: 1459671 Resilient mountings METZELER GUMMITECHNIK GmbH 7 March 1974 [23 March 1973] 10312/74 Heading F2S A resilient mounting, comprising at least one spacer bush 2, two rubber elements 3, two plates 8, a support member 1, a fixing member 6 and metal supporting rings 4, wherein the rubber elements 3 surround the bush 2 and are preloaded between the plates 8 and against the support member 1 by the fixing member 6 which passes through the bush 2 is characterized in that the rubber elements 3 are bonded to the metal supporting rings 4 which have openings 5 at least partly filled with rubber. The opening in the support member 1 may be circular, Fig. 1c (not shown), or elliptical, Fig. 1b (not shown), and the parts of the rubber elements within the opening may have a crosssection which is circular or elliptical, giving four possible combinations. The rubber within the openings 5 may project beyond the face of the metal supporting rings 4, Fig. 4 (not shown).
Patent GB-404598-A (GB)
Title: Improvements in and relating to electric resistance materials
IPC: H01B1/08
Filed: 1932-04-11
Abstract: 404,598. Resistance materials; coatings and deposits. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges.; 2, Friedrich Karl-Ufer, Berlin.) April 11, 1932, No. 10357. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 11, 1932]. [Class 37.] High ohmic resistances, loading resistances, heating resistances, and hot cathode materials comprise admixtures of oxides of cobalt and nickel. Oxides of zinc, copper, aluminium, barium and magnesium may be added, or may be substituted for the nickel and cobalt. The mixtures in solid form may be obtained by melting the oxides together, or by precipitation, or by oxidising alloys. Solutions or melts of nitrates or carbonates may be heated on a porcelain or other non-conducting support, for example, an aqueous solution of 10 per cent cobalt nitrate and 10 per cent nickel nitrate may be formed into an oxide coating. The oxide mixture may be sintered by further heating, under pressure if necessary.
Patent GB-215014-A (GB)
Title: Improvements in directional antenna systems
IPC: H01Q21/08
Filed: 1924-04-26
Abstract: 215,014. Soc. Franþaise Radio-Electrique. April 26, 1923, [Convention date]. Aerials. - In aerial systems of the Beverage type, the horizontal conductor f is combined with a number of disconnected vertical loops or frames C arranged for example so that there are five per wave-length. The antenna system may then be considered as a combination of five elements, each comprising a vertical frame, or loop and onefifth of the horizontal wire. This arrangement is stated to produce no radiation towards the zenith, but to posses a maximum directional effect along the line of horizontal conductors.
Patent GB-127434-A (GB)
Title: Improvements in and relating to Electromagnetic Wave Transmission.
Inventor: BINYON BASIL
IPC: H01Q1/30
Filed: 1918-06-24
Abstract: 127,434. Binyon, B. June 24, 1918. Aerials. - Wireless trailing aerials for use on aircraft are arranged to be readily detached in an emergency. The coil of stranded wire 1, Fig. 3, is contained within a lead weight 2, one end being soldered to the bulb 5, and the other passed through the felt washer 6 and secured to a loose metal plate 7. When the aerial is to be lowered, the bulb 5 is placed on the hook 8 as shown in Fig. 1, and wrenched off, the cartridge being then dropped down the fairlead 13, the wire paying out automatically. The slide 8<a> and spring 11 act as a shock-absorber, and the washer 6 acts in some measure as a dash-pot plunger. A stop 14 limits the motion of the slide 8<a>. The aerial can be instantaneously abandoned by detaching the bulb 5 from the hook 8. The coil may be wound outside the weight 2 instead of inside. According to the Provisional Spscification, the coil may be carried on the aircraft and the weight dropped from it; or the coil may be on a drum the unwinding of which is controlled by a brake. Several weights may, in this case, be attached at intervals to a single wire, the portion in use being cut off and abandoned in an emergency.
Patent GB-723807-A (GB)
Title: Means for internally screw-threading nuts or other work pieces
IPC: B23G1/18
Filed: 1952-04-25
Abstract: 723,807. Tapping. ACCURATUS; Ltd., and BOULTON, T. J. H. April 15, 1953 [April 25, 1952], No. 10435/52. Glass 83 (3). Apparatus for internal screw-threading of nuts or other work comprises a shoot d from which workpieces c are transferred by a pusher e on to a shank b extending from the smaller end of a tap a, as described in Specification 626,196, and a tool f is provided on the feed end of the tap for removing burrs from the work, or performing preliminary cutting operations on the bore of the work, such as reaming or preliminary tapping, while the work is held against rotation by guides h. To ensure that flats on the work are correctly presented to the flat inner faces of the guides, a locating piece i having a rounded end k is slidable in one guide against the action of a spring j, and further guidance is provided by a bevel m on the other guide and by a pilot pin g on the tool f.
Patent GB-540187-A (GB)
Title: Improvements relating to electric communication systems
IPC: H04J1/16
Filed: 1940-06-17
Abstract: 540,187. Two-way carrier transmission. SIEMENS BROS. & CO., Ltd., and ROSEN, A. June 17, 1940, No. 10445. [Class 40 (iv)] In a system in which normally separate multi-conductor cables are provided for the two directions of transmission, each pair carrying a number of one-way carrier channels and the same frequency being allotted for both directions of the same conversation, means are provided whereby, when one cable fails, half the pairs in the other cable can be disconnected from their normal circuits and connected up for transmission in the opposite direction. At the same time half the carrier channels (preferably those in the lower half of the total frequency band) in the pairs which remain connected for the normal direction of transmission are disconnected, their frequencies being used for transmission in the reverse direction in the other pairs. Means such as keys or links and patch cords for effecting these changes are provided at the terminal stations TS1, TS2 and at intermediate-repeaters such as G1R1. R1R2.
Patent GB-125828-A (GB)
Title: Improvements in Electric Ignition Devices for Internal-Combustion Engines.
Inventor: HOLLISTER FREDERICK LOUIS
IPC: F02P7/063
Filed: 1918-06-25
Abstract: 125,828. Hollister, F. L. June 25, 1918. Systems, electric.-In order to prevent spark. ing on the exhaust strokes in a multi-cylinder engine, the ends of a secondary a of the ignition magneto or induction coil are connected to distributor contacts b, c and are alternately connected to earth by rotating contacts f, which may be mounted on or driven from the cam-shaft. Reference has been directed by the Comptroller to Specifications 20665/99, 4122/00, 3381/07, 108,473, and 115,901.
Patent GB-1280261-A (GB)
Title: Display tube camera apparatus
Inventor: DAHLQUIST JOHN ANDREW
IPC: G03B27/32
Filed: 1970-03-04
Abstract: 1280261 Photo-copying apparatus VARIAN ASSOCIATES 4 March 1970 [5 March 1969] 10493/70 Headings G2A and G2H A camera for photographing the display face 1 of a cathode ray tube 11 has an optical system arranged so as to allow an observer to have an unobstructed view of the face 1, the optical axis 2 of the optical system intersecting the plane 14 of displayed images at an oblique angle. The system comprises a mirror 15 and a wide angle lens 4 arranged so that the optical axis 6, 6' thereof is substantially perpendicular to both the plane 14 and the plane 16 containing the camera image plate 3. The lens (4'), Fig. 5 (not shown) may be placed between the face (1) and the mirror (15). Alternatively one side of the lens may be coated to form a mirror (15'), Fig. 6 (not shown), or a wide angle mirror (20), Fig. 7 (not shown) may replace the lens 4 and mirror 15. The camera plate 3 preferably comprises an optical transparent substrate 17 having an optically transparent conductive electrode 18 deposited thereon, with a photo-conductive member 19 in turn deposited on the electrode 18. An electro-photographic recording web 21 is held in contact with the member 19 by a backing electrode 22 which operates at earth potential, a source 24 of negative potential being connected to the electrode 18 through a timing switch 25. After exposure, the web 21 is advanced past an inking station 28, and the developed exposures, of successive images on the tube 11, are ejected through an opening 29.
Patent GB-417723-A (GB)
Title: Improvements in chocolate and like refiner roll machines
IPC: B02C4/36
Filed: 1933-04-07
Abstract: 417,723. Roller mills. BAKER PERKINS, Ltd., TUNLEY, A. A., and PATERSON, J. C., Westwood Works, Peterborough, and ANCIENS ETABLISSEMENTS A. SAVY JEANJEAN ET CIE, Avenue Dubonnet, Courbevoie, Seine, France. April 7,1933, No. 10503. [Class 59.] A roll refiner for chocolate, &c., comprises several vertically-arranged rolls, the trunnion housings of each of which bear upon those beneath by gravity and/or spring, &c., means, wedge, eccentric, or other variable members provided between the trunnion housings of each pair of rolls being adapted to vary the distance between the roll axes so that when an adjustment is made all the rolls on the side of the adjusted roll remote from a fixed abutment or fixed roll, are bodily displaced while maintaining their respective clearance. As shown in the Figure the trunnion housings 14 of the lowermost roller 10 are fixed while the trunnion housings 15, 16, 17 of the rollers 11, 12, 13 are slidable in vertical guideways 18. Toggle devices each comprising plates 20 and a block 21 are arranged between adjacent rolls, each block being horizontally-adjustable by a screw-threaded spindle 22 passing through a mounting 23 pivotally supported in the framework 24 so as to accommodate vertical displacements of the block-end of the spindle. A worm wheel 26 on the spindle meshes with a worm 27 on the mounting 23, the worms on the spindles associated with the opposite ends of a pair of rolls being coupled to a common operating-spindle, whereby adjustment of one end, or of both ends simultaneously, may be effected. A spring 36 acts through a spindle 37, bell-crank 38 and lever 39 to press the trunnion housings downwardly. Alternatively, counterweighted levers may be employed. The initial roller 40 may be provided with independent adjusting-means 41 or may be fixed. Levers 42 pivoted to the framework at 43 carry the trunnion housings, the levers 42, toggles, adjusting-means, and guideways 18 being located in side compartments in the framework. The levers 42 may however be dispensed with, in which case plates 45, which close the spaces between the trunnion housings, may be pressed resiliently against one of the guideways 18 to maintain the axes of the rolls in vertical alignment. In another construction of mill, each adjustable spindle 22 is formed with a tapered end adapted to move between ball or roller race elements or inclined surfaces mounted on the trunnion housings. In a further construction (not shown) an adjustable eccentric or eccentrics is or are supported between upwardly and downwardly projecting lugs on the respective housings.
Patent GB-420481-A (GB)
Title: Drip catcher
IPC: A47G19/14
Filed: 1934-04-06
Abstract: 420,481. Drip catchers. KRAUSE, E., 1, Spengergasse, Vienna. April FIG. 6. 6, 1934, No. 10523. Convention date, Jan. 12. [Class 66] A drip catcher for coffee and teapots &c., consists of band 1 of elastic material to grip the spout and a sponge member 2, these being connected by an arm 3 to a hinged lid 5 to close the spout 10.
Patent GB-1033044-A (GB)
Title: Improvements in the coating of ferrous articles
Inventor: CARTER GILES FREDERICK
IPC: C23C10/22
Filed: 1964-03-12
Abstract: A ferrous article is provided with a chromium diffusion coating by immersing in a molten bath containing at least 10% by weight of lithium and chromium, at a temperature over 800 DEG C.  Diluents such as lithium halides, copper, lead and tin may be added to the bath. A blanket of inert gas may be used over the bath, and it may be agitated.
Patent GB-1500907-A (GB)
Title: Disc brakes
IPC: F16D65/097
Filed: 1974-03-09
Abstract: 1500907 Sliding caliper disc brakes GIRLING Ltd 6 March 1975 [9 March 1974] 10645/74 Heading F2E  A sliding caliper 10 is mounted on the fixed carrier 12 by two pin assemblies 14, 16 and a third sliding connection spaced therefrom. As shown, pins 14, 16 are releasably secured to the caliper and slide in blind bores in the carrier while the third sliding connection comprises a further pin assembly 18. Each pin has two parts, namely a bolt 54 screwed into a bush 52 and the sliding surfaces of assemblies 14, 16 are protected by sealing boots 64 which retain bushes 52 in the bores when bolts 54 are withdrawn to permit caliper removal. A resilient bush 58 is provided in the caliper opening through which bolt 54 of assembly 14 passes and is compressed to a degree determined by the axial extent of an increased diameter portion 62 of the bolt. Assembly 18 is also resiliently secured (to the carrier) but assembly 16 is not.
Patent GB-311067-A (GB)
Title: Improvements in or relating to pumps, motors and the like
IPC: F01C9/00
Filed: 1928-04-11
Abstract: 311,067. Swain, F. E. April 11, 1928. Disc-engine type; regulating motors and pumps. - A rotary engine, pump, or the like, comprises a cylindrical casing 1 in which rotates an eccentric rotor 3 with an oblique slot 4 to receive an oblique cylindrical ring 2 extending to the casing periphery. Fig. 2 shows a construction with two oppositely inclined oblique rings 2; fluid passes alternately to the central and the two end working chambers through triangular ports 8 under the control of the cylindrical rings 2 which may be driven from the rotor 3 through Oldham couplings. In the modification shown in Fig. 6, the rotor 3 extends to the casing periphery and is centrally mounted while the oblique cylindrical ring 2 is mounted with variable eccentricity in the casing 1 by an adjustable eccentric bush 10.
Patent GB-399733-A (GB)
Title: Improvements relating to the manufacture of gum-inhibited motor fuels
IPC: C10L1/183
Filed: 1932-08-26
Abstract: Gum formation in motor fuel is retarded by adding a fractional percentage of perimonoxy-naphthalene whenever obtained, as described in Specification 394,511, by oxidizing a -naphthol or dehydrating 1 : 8 dioxynaphthalene.  The crude oxidation product of a -naphthol may be used; it contains small proportions of di-a -naphthol and unreacted a -naphthol.  0,0005-0,01 per cent is a suitable addition to cracked gasolene.
Patent GB-805681-A (GB)
Title: Improvements relating to electric current converters, especially for automobile radio receivers
IPC: H02M1/26
Filed: 1955-04-14
Abstract: 805,681. Converting. TELEFUNKEN G.m.b.H. April 14, 1955 [April 15, 1954; April 23, 1954], No. 10753/55. Class 38 (2). A converter of the kind used to supply radio sets from car batteries comprises two sets of vibrating contacts 3, 4 which operate at the same frequency in parallel from battery B to interrupt the supply to transformer primary windings having independent parts 1, 2 on separate core limbs and a common part K on a common core limb also carrying secondary winding 6. If one contact set fails to operate the flux in the winding connected to the other contact set is not driven out of the secondary winding. The secondary winding 6 supplies a load R shunted by a smoothing condenser CL through a rectifier bridge G. To reduce sparking, the transformer secondary circuit is tuned with condenser C. The contacts may be arranged to operate with a phase difference of 90 degrees.
Patent GB-878812-A (GB)
Title: Improvements in or relating to particle accelerators
IPC: H05H11/02
Filed: 1959-03-31
Abstract: 878,812. Cyclic particle accelerators. TEICHMAN, J. March 31, 1959 [March 28, 1958], No. 10768/.59. Class 39(1). Azimuthal alternations in magnetic field gradient are set up along the equilibrium orbit of a cyclic accelerator, particularly an electron cyclotron, in order to focus the accelerating particles in their orbits, by superimposing helical inhomogeneities transverse to the general plane of the equilibrium orbit upon the basic magnetic particle constraining field. These inhomogeneities may be formed by protuberances 4, Fig. 3, of semi-circular or rectangular cross-section, or coils 8, Fig. 5, or by cutting helical air-gaps in the pole faces or by providing non-magnetic insertions. The polepieces 2, 3 are energized by a single winding 5, or the polepieces may form part of a permanent magnet or coils without polepieces may be used. The vacuum chamber 6 and pole faces need not follow cylindrical surfaces of revolution; the cross-section 8 may be, for instance, trapezoidal.
Patent GB-228755-A (GB)
Title: Improvements in and relating to electrical switches
IPC: H01H13/12
Filed: 1924-05-01
Abstract: 228,755. Monnot, J. F. May 1, 1924. Press-button switches.-A switch, specially adapted for attachment to the handle-bar of a cycle, comprises a casing h<1> fitted at one end with a press button g carrying a bridging contact e and at the other end with a detachable cap j which holds in position an insulating base b carrying the fixed contacts a, a<1>. The leads to the contacts a, a<1> enter through a hole in the casing h<1>, and pass into opposite notches in the castellated head of a nut d which screws on to an insulating sleeve c, and thence through holes in the base b, being clamped in position by a screw l.