baber/WOPTO huggingface dataset:
Patent GB-1181114-A (GB)
Title: Improvements relating to the Photographic Production of Printing Plates and Relief Images
Inventor: WILLIAMS-FOXCROFT STANLEY GART
IPC: G03F7/12
Filed: 1967-06-16
Abstract: 1,181,114. Photographic processes and apparatus; optical filters. FOXCROFT INVENTIONS (PTY.) Ltd. June 16, 1967, No.27886/67. Headings G2A, G2C and G2J. Relief images are produced by pouring a fluid, photo-hardenable polymerizable material on to a backing sheet and placing a transparency above the sheet in contact with the material, locating an infrared absorbing, ultraviolet transmitting filter containing a fluid as coolant and, optionally, as filter above the transparency and exposing the assembly to ultraviolet through the filter and then removing the unhardened polymerizable material. As shown, a backing sheet 1 is placed on table 3 and sealed by strips 21. It is held flat on the table by evacuating via hole 19. The sheet is surrounded on three sides by strips 4, e.g. of grease, and the liquid photopolymerizable material 5 poured in. The transparency 6 mounted in frame 7 is then laid on the bearer strips 8 which are lower than strips 4 and surplus material 5 is squeezed out through open side 9 into drain 23. Hood 10 carrying carbon arc lamp 14 and containing a liquid infrared absorbing, ultraviolet transmitting liquid of copper sulphate 11 and a transparent sheet 15 constituting the filter is positioned above the transparency and the material is exposed. The unexposed liquid material is poured off (after removal of hood 10) to leave a relief image. If the transparency is small, it may be mounted on the glass sheet 15. The liquid 11 may be cooled by refrigeration unit 17 and circulated by pump 16. If a printing plate is required, the material 5 may be stuck to the backing sheet by using an epoxy resin and heating by using the element embedded in block 2 which also assists polymerization. The specified photo-polymerizable material is an unsaturated polyester and a photoinitiator dissolved in styrene monomer. The backing sheet may reflect some ultraviolet light e. g. oxidized copper, to harden the material 5 in this area and produce durable printing plates. A gaseous filter of nitrogen or carbon dioxide preferably under pressure may replace the liquid infrared filter. Alternatively the sheet 15 may be the infrared filter and the liquid act as the coolant.
Patent GB-1015482-A (GB)
Title: Contact wheel for electrolytic stock removal
IPC: B24D5/06
Filed: 1962-07-20
Abstract: An annular contact layer 1, Fig. 1, or cylindrical contact layer 11, Fig. 3, provided on the surface of a contact wheel for electrolytic stock removal has a closed groove 4 (or 41) so arranged that, as the wheel rotates, it moves to-and-fro relatively to the work and transversely to the general direction of movement of the layer.  The groove 4 in the annular layer 1, Fig. 1, may be in the form of an <PICT:1015482/C6-C7/1> <PICT:1015482/C6-C7/2> <PICT:1015482/C6-C7/3> eccentric or elliptical ring and the electrolyte is supplied to the groove through a circular groove 5 and radial channels 6.  The groove 41 in the cylindrical layer 11, Fig. 3, lies in a plane slightly inclined to the plane of rotation of the wheel. The wheel shown in Fig. 5 has the annular contact layer divided into two separated zones 1a, 1b with an eccentric groove 411 in the zone 1b; a resistance layer 7 disposed under the zone 1a consists of the same metal as that of the wheel body with sintered-in substances such as glass, quartz, aluminum oxide and silicon carbide.  This two zone construction may be applied to the cylindrical surface of a wheel.
Patent GB-358694-A (GB)
Title: Indoor appliance for use in connection with the drying and airing of clothes
IPC: D06F53/04
Filed: 1930-09-19
Abstract: 358,694. Clothes lines. ROBB, J. K., 16, Barony Street, Edinburgh. Sept. 19, 1930, No. 27989. [Class 52 (v).] A clothes line P is attached to a hook N and passes over a detachable pulley A to a holdfast V, a depending length of cord R being attached to the line by a ring S. The line is drawn downwards, for loading &c., by the cord R. In the construction shown the pulley frame is provided with a shank B carrying a crosspin G which is inserted through a slot in a plate D secured to the wall, the frame being then rotated to engage the crosspin in a recess in the back of the plate D which carries a second plate J spaced therefrom and provided with a hole to receive the end of the shank B. In a modification the pulley frame is provided with a depending limb which is inserted in and held by a catch secured to the wall &c. Specification 313,708, [Class 52 (v), Window, stair, and like furniture &c.], is referred to.
Patent GB-654031-A (GB)
Title: Improvements in or relating to the manufacture of interpolymers of styrene with unsaturated fatty acids and polyhydric alcoholic esters thereof
IPC: C08F212/14
Filed: 1948-10-28
Abstract: Interpolymers of styrene, or nuclear substituted derivatives thereof, with unsaturated fatty acids or their polyhydric alcohol esters, are prepared in the presence of a mono- or dicyclic terpene which has been activated by blowing with molecular oxygen. Suitable terpenes are (a) commercial dipentene containing minor proportions of a -terpinene and a -terpinolene; (b) and (c) rectified dipentene and terpinolene; and (d) gum turpentine containing 90 per cent a -pinene, the remainder being chiefly b -pinene.  In examples, mixtures such as (1) monomeric styrene, white spirit, solvent naphtha, conjugated linseed oil and oiticica oil with (a), (b) or (c); (2) styrene, alkali refined linseed oil, oiticica oil, white spirit and inactive dipentene with (d); (3) styrene, alkali-refined linseed, oiticica oil, white spirit with (a); and (4) dehydrated castor oil, styrene and xylene with (a) are refluxed at atmospheric or increased pressure.  The styrene and/or terpene may be added portionwise.  The products have a greater rate of viscosity increase and solids content increase with heat and yield a clearer film.  Oil-modified alkyd resins made from glycerol or pentaerythritol or mixtures thereof, may be included.  Specifications 573,809, 580,912 and 580,913 are referred to.
Patent GB-649561-A (GB)
Title: An improved rotary retort
IPC: C10B1/10
Filed: 1948-10-29
Abstract: 649,561. Stuffing boxes. YOUNG. J. K., and WRIGHT, E. A. Oct. 29, 1948, No. 28072. [Class 122(v)] [Also in Group XII] The gland joint between a rotary retort 10, which passes through a heating chamber 11, and its stationary discharge compartment 12, comprises a long collar 20 of greater diameter than the retort, which is welded to the retort at the discharge end thereof so as to leave an annular air space between the collar and retort. A circumferential trough 21 for cooling water is provided on the outside of the collar. A ring 22 is welded to the collar to form the bearing surface for the gland packing 24, which is held in a gland ring 23 mounted on the wall of compartment 12, the packing being compressed by a bush 27. A circular channel member 25, supplied with steam through a pipe 26, may be provided in the gland to prevent escape of gas from compartment 12.
Patent GB-822742-A (GB)
Title: Polymerisation process
Inventor: FRASER DONALD ALEXANDER
IPC: C08F36/04
Filed: 1956-09-15
Abstract: Catalysts for use in the polymerization of dienes or trienes are made by mixing lithium borohydride with a halide of titanium, zirconium or vanadium.  Specified halides are titanium tetrachloride, vanadium tetrachloride, titanium tetraiodide, titanium trichloride, zirconium tetrachloride, zirconium trichloride and vanadium trichloride.  The catalyst components may be ball-milled or treated with an inert solvent, preferably on the absence of oxygen, carbon dioxide and water, preferably in the presence of the alkene to be polymerized or an inert gas.  The examples describe the preparation of catalyst systems by mixing titanium tetrachloride and lithium borohydride under an atmosphere of nitrogen in the presence of benzene or toluene.  The Specification also discloses the preparation of known metastable titanium trichloride by passing titanium tetrachloride and hydrogen through a silent electric discharge at room temperature. Reference has been directed by the Comptroller to Specification 776,326.ALSO:Conjugated dienes and trienes are polymerized by contacting in a liquid reaction medium with a polymerization initiator formed by mixing lithium borohydride with a halide of titanium, zirconium or vanadium.  Specified dienes and trienes include butadiene-1,3, isoprene, piperylene, chloroprene, 2,3-dimethylbutadiene-1,3, 2-ethyl-butadiene-1,3, 4-methylpentadiene-1,3, 2-methyl-pentadiene-1,3, hexadiene-2,4, hexatriene-1,3,3,4-methyl-hexadiene1,3, 2-methyl-hexadiene-2,4, 2,4-dimethylpentadiene-1,3 and 2,3-diphenyl-butadiene-1,3.  Other monomers copolymerizable with the dienes or trienes, e.g. ethylene, propylene, butene-1, butene-2, cyclohexene, methyl-cyclohexene, cycloheptene, styrene, a -methyl-styrene, o-, m- or p-methyl-styrene, allyl benzene allyl toluene, vinyl naphthalene, indene, allene, diallyl, dimethallyl, squalene, 1-vinyl-cyclohexene-3 and divinyl benzene.  Specified halides are titanium tetrachloride, vanadium tetrachloride, titanium tetraiodide, titanium trichloride, zirconium tetrachloride, zirconium trichloride and vanadium trichloride. Specified liquids for the reaction medium are propane, butane, pentane, hexane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, benzene, toluene, xylene, o-dichlorobenzene and chlorinated naphthalene.  The examples disclose the use of catalysts made from lithiumborohydride and titanium tetrachloride for polymerizing: (1) isoprene in the presence of benzene, the polymer being precipitated in acetone containing phenyl b -naphthylamine; (2) and (3) butadiene in the presence of toluene, the polymer being precipitated in methanol containing phenyl b -naphthylamine; (4) to (7) butadiene in the presence of toluene, the polymer being isolated as in Examples (2) and (3).  Reference has been directed by the Comptroller to Specification 776,326.
Patent GB-1382660-A (GB)
Title: Collapsable storage pallet
IPC: B62B3/18
Filed: 1972-06-16
Abstract: 1382660 Trolleys INNOVIA LOGISTIK. MASKINER AB 16 June 1972 [18 June 1971] 28247/72 Heading B7B [Also in Division B8] A storage trolley convertible from a carrying to a stowed position permitting nesting of a plurality of pallets comprises sides 2, a front wall 3, a back wall 4, and a hinged bottom 5, the side walls being connected by a hinge 6 with the front wall 3, while the rear wall 4 is connected by a hinge to the left side wall 2 to permit folding the wall 4 against the wall 2 during stowing. The bottom 5 carries triangle-shaped projections 10 with faces 11 which cause side walls 2 to swing outward from the inside of the pallet during upward hinging of the bottom. An arm 14 secured to a side wall 2 engages the wall 3 in the carrying position to improve rigidity and the bottom 5 in stowed position to serve as a limiting stop to outward hinging of the walls 2. Wheels 16 may be replaced by means for sliding the trolley.
Patent GB-750023-A (GB)
Title: Improvements in glazing or mounting strips for window or other panels
Inventor: JONES ARTHUR VERNON
IPC: B60J10/00
Filed: 1953-10-14
Abstract: 750,023. Glazing strips. WINDSHIELDS OF WORCESTER Ltd. May 28 1954 [Oct. 14 1953], No. 28254/53. Classes 20(3) and 20(4). Panel mounting means comprises a main strip 11, Fig. 2, of rubber or other resilient material and a filler strip 13 interlocked therewith; the two strips forming between them a channel 6 for the panel 1, the filler strip having at one side an extension piece 13b which lies over a face of the main strip. The strip 11 is keyed into a metal frame 10 by ribs 12 and is stepped to form a ledge for the edge of the glass panel 1 and provided with a part-circular recess to receive the part-circular portion 13a of the filler strip 13. A lip 14 on the strip 11 engages the outer edge of the extension piece 13b. The filler strip 13 may be made of rubber as shown or may be of metal with or without a rubber covering keyed or bonded to the face adjacent the glass. In a modification the main strip is fitted in a channel around a metal or other window frame carrying one or more panels, for securing the window assembly within an aperture in a body panel. Alternatively the main and filler strips of Fig. 2 may engage a flange of a metal or other frame carrying one or more panels. In a further form, Fig. 1, for assembling a window panel 1 to a vehicle body panel 2, the main strip 3 receives two metal filler strips 4, each of which co-operates with the main strip to provide a pair of oppositely directed channels 6, 7. The strips 4 have integral extensions 4b the outer edges of which are concealed by lips 5 on the main strip, and on the surfaces adjacent the panels 1, 2 inserts 9 of rubber are keyed therein. Alternatively a covering of rubber may be bonded to the filler strips. The outer surfaces of the metal filler strips may be chromium plated or enamelled or may be of aluminium. In the embodiment shewn in Fig. 1, the filler strips may be of rubber. In either construction the filler strip may have a dovetail sectioned part to key it to the main strip. Specifications 639,629 and 703,873 are referred to:
Patent GB-608502-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D57/02
Filed: 1945-10-26
Abstract: 608,502. Fluid-friction brakes. OLMAN, P. M. Oct. 26, 1945, No. 28301. Convention date, Oct. 31, 1944. [Class 103 (i)] A fluid-friction brake comprises a pair of telescopically-disposed members formed with opposed blades and mounted for rotation in opposite directions, means being provided for moving one member axially of the other to vary the overlap of the blades and hence the fluid drag between the members. As shown, an outer rotary member 15 carrying a wheel rim is rotatably mounted by bearings 18 and 19 on an axle 10 and a member 11 fixed to the axle, and comprises a stepped drum 16 filled with fluid and formed with blades 33 and pockets 34 on a portion of its inner periphery. The drum carries a ring gear 21 which drives through planets 30, mounted on a flange 12 of the member 11, a sun gear 29 integral with a sleeve 27 rotatable on the axle 10. A cylindrical rotor 28 formed with peripheral blades and pockets 35 and 36 is splined to the sleeve 27 so that it may be moved axially from the position shown to positions in which the blades 33 and 35 overlap to any desired extent and a braking torque is applied to the member 15. The rotor is formed with longitudinal passages 40 to reduce the fluid resistance to axial movement thereof and with an annular groove 41 partially covered by an annular end plate 42. The member 11 carries one or more hydraulic jacks 50 having piston-rods 52 which project into the groove 41. The rods are fitted with pairs of rollers 45 and 46 engaging respectively with the inner and outer faces of the plate 42 and a flange 43 when the jacks are operated to move the rotor to the right or left, but permitting free rotation of the rotor. The end of the rotor carries a friction disc 38 which engages a face 55 on the drum to lock the member 15 after it has been brought to rest. The disc and its back-plate 37 also serve to separate the bodies of fluid in contact with the blades 33 and 35 when the rotor is retracted and so reduce the fluid drag when the brake is inoperative.
Patent GB-1080273-A (GB)
Title: Fuel feeding system for a fuel injection pump of an internal combustion engine
IPC: F02N19/04
Filed: 1965-07-05
Abstract: 1,080,273. Fuel injection systems. J. L. GRATZ MULLER. July 5, 1965 [July 23, 1964], No. 28311/65. Heading F1B. In a heavy oil engine supplied with diesel oil 5 at starting and provided with a pressurized coolant system, the heavy oil supplied by a pump 27 from a tank 7 is heated in a heat exchanger 18 by the coolant liquid. The part of tank 7 adjacent the pump suction pipe 28 is heated by an electric heater 31 which, during running, is assisted by excess heated fuel returned to the tank through return pipe 35. A cock 22 is adjustable to supply diesel oil or heavy oil to the injection pump 3. The heater tank 12 of the coolant system is pressurized by a compressed air vessel 11.
Patent GB-807788-A (GB)
Title: Pitch cartridge for electrode joint
IPC: H05B7/14
Filed: 1955-10-06
Abstract: 807,788. Furnace electrodes. UNION CARBIDE CORPORATION. Oct. 6, 1955 [Oct. 12, 1954]j No. 28458/55. Class 39(3) A pair of abutting carbonaceous electrodes 10a, 11a each with an internally threaded socket receive a common externally threaded carbonaceous nipple 12a having adjacent to the end portions thereof at least one cartridge - receiving recess 14a extending radially inward from the threaded surface of the nipple, said cartridge comprising a cylindrical core of fusible binder having a volume such that when fused, it will bind not more than 20 per cent of the thread clearance space between the nipple and the electrodes The cartridge is preformed and comprises a coal tar pitch with a M.P. of 75-200C. or a mixture of refractory oxides with water glass and is wrapped in paper with an outer wrapping of aluminium foil; and the material is set thermally when the electrode is used. The recesses are symmetrical about the large central diameter of the nipple. Specifications 670,162 and 760,187 are referred to.
Patent GB-1348690-A (GB)
Title: Spinning unit for break spinning a sliver
IPC: D01H4/08
Filed: 1971-06-17
Abstract: 1348690 Break spinning SKF KUGELLA GERFABRIKEN GmbH 17 June 1971 [18 June 1970] 28537/71 Heading DID A break spinning machine comprises a rotor 18 and a separating roller 30 mounted in a housing with the axis of the separating roller being parallel, or up to 40, to the axis of the rotor with at least a portion of the separating roller extending beyond the open end of the rotor 18. As shown, the separating roller 30 lies wholly beyond the rotor 18. A removable cover for the rotor and the separating roller may also contain a fibre feed duct 40 for the rotor. The housing for the rotor 18 and the separating roller is pivotable so as to apply brakes to the rotor and roller. The rotor and roller may be driven from a common drive belt 78, 80.  (For Figure see next column)
Patent GB-465501-A (GB)
Title: Improvements in or relating to dental equipment stands
IPC: A61C19/00
Filed: 1935-11-01
Abstract: 465,501. Switches held set and freed mechanically. PIEPER, O. H. Nov. 1, 1935, No. 28655/36. Convention date, Feb. 11, 1935. Divided out of 465,462, [Group VI]. [Class 38 (v)] [Also in Group VI] A dental equipment stand of the kind described in Specification 465,462 is provided with an instrument supporting block provided with individual instrument-operated switches for controlling the circuits of the electric instruments. The block 14 carries tubes 16 for the air operated instrument, and tubes 17 to receive the handles 18 of low voltage electric instruments. Each tube 17 is formed with a longitudinal slot 26 into which projects the head 27 of a spring controlled switch arm 28 pivoted on an insulating strip 23 clamped to the tubes 17. The arms 28 carry contacts 33 engaging fixed contacts 32 when the instruments are removed for use. Insertion of an instrument into its tube 17 forces back the head 27 of the switch arm and breaks the circuit of the instrument.
Patent GB-833950-A (GB)
Title: Fluid seal for rotary shafts
Inventor: COLBY GEORGE EDWIN
IPC: F16J15/38
Filed: 1958-03-18
Abstract: 833,950. Stuffing-box substitutes. MAGNETIC SEAL CORPORATION. March 18, 1958, No. 28678/59. Divided out of 833,949. Drawings to Specification. Class 122 (5). The subject-matter of this Specification is substantially the same as that described in Specification 833,949, but the claims differ.
Patent GB-1508869-A (GB)
Title: Phenyl ethers and process for their manufacture
IPC: A01N31/16
Filed: 1975-07-08
Abstract: 1508869 Phenyl esters and process for their preparation HOECHST AG 8 July 1975 [10 July 1974] 28689/75 Heading C2C The invention comprises a diphenyl ether of formula in which R 1  is a hydrogen or halogen atom and R 2  is a hydrogen atom or a monovalent cation. This compound may be obtained by reacting a compound of formula in which Hal is a halogen atom with a hydroquinone derivative of formula in which Cat is a monovalent cation and R 3  has the same meaning as R<SP>2</SP> or a C 1-4  alkyl group in a polar aprotic solvent at temperatures of from 120 to 200 C. and eliminating from the reaction product an alkyl group R 3  by ether cleavage.
Patent GB-840449-A (GB)
Title: Improvements in and relating to the preparation of aluminium alcoholates
IPC: C07F5/06
Filed: 1957-09-12
Abstract: An aluminium alcoholate is prepared by heating to reflux temperature a mixture of aluminium and a wet alcohol having less than 5 carbon atoms, the reaction being carried out in the presence of anhydrous aluminium chloride and a known catalyst for the formation of lower alkyl alcoholates.  Specified catalysts are mercury and mercury salts, e.g. mercuric acetate.  Excess alcohol is preferably used. Concentrations of AlCl3 of about 0.3 to 2.0% by weight of the alcohol are specified.  The suitable alcohols are those which have not been pretreated to remove moisture.  The alcoholates may be recovered e.g. by cooling or distilling.
Patent GB-1120574-A (GB)
Title: Semiconductive circuit arrangement
Inventor: SANDBANK CARL PETER
IPC: H01L47/00
Filed: 1966-06-28
Abstract: 1,120,574. Photo-electric waveform generator. STANDARD TELEPHONES & CABLES Ltd. June 28, 1966, No. 28873/66. Heading G1A. [Also in Division H1] A semi-conductor circuit arrangement comprises a photo-conductive body which exhibits Gunn or other high electric field instability effects and means for applying a radiation beam of varied intensity along the body to provide a variable conductivity profile therealong so that a modulated output current is provided as the high field domain traverses the body. The arrangement is said to be suitable for Gunn effect materials, such as gallium arsenide or indium phosphide, Piezo-electric materials such as cadmium sulphide in which the effect is due to interaction between drifting electrons and acoustic phonons or germanium in which slow moving domains can be obtained due to field dependent mobilities and trapping. The body may be continuously biased above the threshold voltage so that a continuous train of domain pulses is provided, or biased just below threshold voltage so that a trigger pulse, or train of trigger pulses provided by an oscillation, may also be applied to provide a single domain pulse or series of single domain pulses corresponding to the oscillations. The embodiments include an epitaxial gallium arsenide layer on a high resistivity gallium arsenide substrate or cadmium sulphide in the form of a solid body or a film on a glass substrate. End ohmic contacts may be provided by deposition and alloying of tin. Fig. 3 shows an optical system for projecting a beam of light along the length of gallium arsenide or cadmium sulphide body 1, the intensity across the width of the beam corresponding to transmission through a strip of film 10. The conductivity profile along body 1 is thus modified so that modulated output current appears across resistor 3 when the domain travels along the body. The applied bias for producing the domains may exceed threshold value either continuously or only when triggered. A further lens may be provided if the body length is less than the film width, or the body may be placed directly adjacent the film.