baber/WOPTO huggingface dataset:
Patent GB-737286-A (GB)
Title: Improvements in or relating to lamination or coating of fluorine-substituted polyethylenes with or on other substances
Inventor: PANAGROSSI AHMED
IPC: B32B27/00
Filed: 1953-02-26
Abstract: A priming composition for adhering fluorine-substituted polyethylene sheet to other materials comprises an elastomer and fluorine-substituted polyethylene, e.g. polytetrafluoroethylene, or polytrifluoromonochloroethylene.  In examples: (1) a paste is prepared by stirring a mixture of a dispersion of polytrifluoromonochloroethylene in xylene and a silicone adhesive containing partially cured polydimethyl silicone rubber, benzoyl peroxide, and titanium dioxide; alternatively, natural rubber may be used in place of silicone, and (3) a solution of natural rubber in benzene or silicone rubber in carbon tetrachloride is mixed with an aqueous dispersion of polytetrafluoroethylene and a small amount of a non-ionic wetting agent.  The natural or silicone rubber in either of these examples, may be substituted by copolymers of butadiene with acrylonitrile, styrene, or isobutylene, isobutylene-isoprene copolymer, or polychloroprene. Toluene is also quoted as solvent for particular elastomers in example (3).ALSO:The surface of fluorine-substituted polyethylene is rendered bondable, e.g. to elastomers or metals, by applying to at least a portion of the surface particles of an elastomer and particles of fluorine-substituted polyethylene to provide a priming coating and fusing the coating.  The fluorine-substituted polyethylene may be polytetrafluoroethylene or polytrifluoromonochloroethylene and the elastomer may be natural rubber, silicone rubber, copolymers of butadiene with acrylonitrile, styrene, or isobutylene, isobutylene-isoprene copolymer, or polychloroprene.  All the examples relate to coated or laminated sheets, but it is stated that the fluorine-substituted polyethylene need not be in sheet form.
Patent GB-979041-A (GB)
Title: Improved sheet handling apparatus
IPC: B65H9/16
Filed: 1963-02-11
Abstract: 979,041. Delivering Sheets. INTERNATIONAL BUSINESS MACHINES CORPORATIONFeb. 11, 1963 [Feb. 26, 1962], No. 6460/63. Heading B6H. Cheques 10 are fed past a device R, Fig. 1, for sensing magnetic ink data, and beneath a plate 16 having a series of recesses containing balls 19 which press the cheques down against a moving belt 15 which carries them to enter the nip.of rollers 22, 23, Figs. 1 and 2, and 24, 25. The cheques are thereby passed between the roller 25 and belts 38, so as to be inverted and turned at right-angles, then being passed by the belts 38 beneath a plate 43 having similar balls 19 to rollers 45, Fig. 3. A series of stacker pockets 39 are arranged in series, each having rollers 47, 48 to pass a cheque on to rollers 49, 50 of the next pocket. A pocket is selected to receive a cheque by the movement of a deflector member 61 by a magnet 60 in response to the device R, thus causing the cheque to pass beneath a guide 64 and a kicker spring 65 on to a platform 55, being pressed against a wall 46 by a wheel 53 rotated by a belt 54 and carried on an arm 52. The platform 55 drops under the weight of the stack by compression of a spring 56. Specification 976,140 is referred to.
Patent GB-285836-A (GB)
Title: Improvements relating to centrifugal machines
IPC: B04B1/14
Filed: 1928-02-21
Abstract: 285,836. Kn³ttel, E. Feb. 22, 1927, [Convention date]. Density separators.-A centrifugal separator, more particularly for pulp containing finely divided solid particles, has a chamber with unperforated walls provided with an annular slot of constant width which can be closed by an annular slide and packed with the solid particles. The hollow shaft a, in the form of apparatus shown, carries the parts d, e and the parts d<1>, e<1> which form the chambers b, c respectively. Annular gaps f, f<1> are left between the rims, and tubes r are provided for the introduction of the material into each chamber. A sleeve on the shaft between the chambers carries two trough shaped plates g, g<1> the rims of which are adapted to close the annular gaps f, f<1> in the separating chambers. The central feed pipe t is divided into two parts by a longitudinal partition m, and stops l, l<1> are placed in the ducts so formed, so that one duct is used to supply the chamber c with material. When the upper chamber b is in use the sleeve is raised so that the rim of the plate g closes the gap f. The material flow into the chamber b and the clear liquid escapes through the openings k while the solids build up in the gap f. When it is desired to discharge the solids, the sleeve is moved downwards to open the gap f and to close the gap f<1>. The supply of material is also changed from one duct to the other, and separation is effected in the chamber c.
Patent GB-737698-A (GB)
Title: Improvements relating to chocks for use in mines
IPC: E21D15/60
Filed: 1953-02-27
Abstract: 737,698. Mine-chocks. BUTTERLEY CO., Ltd., and CHRICH, P. B. Feb. 26, 1954 [Feb. 27, 1953], No. 5505/53. Class 20 (2). A mine chock consists of a cap adapted to be raised by wedges and carrying portions to press against the mine roof, each capable of being released under load when a toggle device is actuated, and a further independent portion adapted to be raised by a wedge to bear against a roof beam and press it against the roof and to be held in position by a catch which can be released to lower the further independent portion and thus free the roof beam. A chock cap 1 is adapted to be raised by wedges 3, 4, co-operating with inclined surfaces 5 on the top 6 of the chock body to press hardwood pads 13 against the roof, the pads 13 being supported by flat topped members 12 having inclined lower surfaces 11 engaging inclined upper edges of upright plates 7 mounted on the cap base 2, each member 12 being held in a roof-supporting position by a toggle lever 17 and a link 19 pivotally connected between a lug 15 on the member 12 and a lug 21 on the cap base 2. By withdrawing sliding members 24 which have means to co-operate with lugs 22 on the toggle levers 17, the toggle levers are turned over their centres, and thereby the supporting members 12 are released to slide downwardly and outwardly. The slides 24 are connected by a cross-piece 28 and are held in place by a removable peg 26. With the peg 26 removed, the slides 24 can be withdrawn from a safe distance to trip the chock by means of a chain 27. In the centre of the chock a wedge 30 co-operates with inclined surfaces 6 on the top of the chock body and supports a wedge-shaped member 32 having a steeper wedge angle and upon which a support 34 for a beam 39 is slidably mounted. The beam support 34 is releasably retained in a beam-supporting position by a pivoted bar 36 which engages the upper corners of the wedge 32 and the beam is raised to press against'the roof by driving in the wedge 30. To release the beam 39 the bar 36 is knocked upwardly so that the support 34 is free to slide down the wedge 32.
Patent GB-513843-A (GB)
Title: Improvements in the protection of seeds against birds
IPC: A01C1/00
Filed: 1938-02-22
Abstract: 513,843. Protecting seeds from birds. ELSON, L. A., SHARP, F. L., and IMPERIAL CHEMICAL INDUSTRIES. Ltd. Feb. 22, 1938, No. 5514. [Class 81 (i)] Seeds are treated with carbon black or pulverulent or liquid compositions containing it to render them unattractive to birds. The compositions may also contain a proportion of fungicidal substances and/or natural or synthetic phytohormones such as #-indolylacetic acid, alpha and #-napthylacetic acids, #-indolylbutyric acid, phenylacetic acids, and salts and esters thereof. The pulverulent compositions may contain an inert filler or diluent and/or an anti-dust agent. The liquid compositions contain carbon, black in an aqueous or oily medium, with a wetting or dispersing agent if desired. Specifications 7137/13, [Class 2 (iii)], and 510,510 are referred to.
Patent GB-1390298-A (GB)
Title: Production of polymer films on fibres
IPC: D06M13/192
Filed: 1973-02-05
Abstract: 1390298 Coated products BRUCKNER APPARATEBAU GmbH 5 Feb 1973 [18 Feb 1972] 5515/73 Heading B2E [Also in Division C3] Producing a polymer film on the surface of fibres which are capable of absorbing a polar substance by (1) applying an emulsion of a first polar reactant (A), in a non-polar solvent, and (2) applying a second reaction partner (B), whose presence with (A) will cause a polymer to form. (A) may form the polymer by reaction with (B), or (A) or (B) may self-polymerise in the presence of a catalyst (B) or (A). The reactants may be monomers or oligomers. (A) is preferably emulsified while diluted with water. The fibrous substrate may be worsted tops. In the Example (A) is hexamethyldiamine emulsified in water and perchloroethylene and this is applied to worsted tops. The treated tops are then put into a second both containing as (B) sebacyl acid chloride in perchloroethylene. The reactants may be applied continuously such as by padding, spraying or wetting or discontinuously.
Patent GB-950792-A (GB)
Title: Improvements in or relating to fluid amplifiers
IPC: F15C1/04
Filed: 1962-02-13
Abstract: 950,792. Regulating fluid flow. SPERRY RAND CORPORATION. Feb. 13, 1962 [Feb.16, 1961], No. 5547/62. Heading G3H. A bi-stable fluid amplifier 2, Fig. 1, comprises a power stream inlet passage 4, 6 and two receiving passages 10, 12 extending from a chamber 8. Control jet orifices 26, 31 extend respectively from control signal chambers 20, 22 which are defined by diaphragms 24, 28. The diaphragms 24, 28 are selectively vibrated by energization of associated electromagnets 30, 32 from signal sources 34, 36 to direct the output to one or other receiving passage. The chambers 20, 22 are each preferably shaped similarly to a horn type loudspeaker and each diaphragm is spherically shaped. In another example a fluid amplifier having four stable states is described. In an example comprising a fluid amplifier with three stable states the direction of the power stream is determined by which two of the three control jet orifices receive control signals.
Patent GB-123637-A (GB)
Title: An Improved Method of Drying Peat Turves.
Inventor: WARBURTON FREDERICK TYNTE
IPC: F26B25/06
Filed: 1918-03-30
Abstract: 123,637. Warburton, F. T. March 30, 1918. Drying peat turves.-Peat turves are placed on end on the ground so as to lean against one another, and are covered by low sheds about a font high, made in sections. Air is forced through the sheds by fans carried on locomotives. which nm on rails disposed round the ground so that the air can be blown into both ends of each shed.
Patent GB-863126-A (GB)
Title: Improvements in and relating to spacers for high voltage, aerial, transmission lines
IPC: H02G7/12
Filed: 1958-02-20
Abstract: 863,126. Spacing overhead conductors apart. PERRONE, A., and SALVI, A. Feb. 20, 1958 [May 14, 1957], No. 5603/58. Addition to 739,796. Class 36. A flexible, curvilinear member for spacing apart conductors of overhead transmission lines is secured to the conductors by clamps each of which is integral with or secured to the member and adapted to be independently secured to a conductor. As shown in Fig. 5, the flexible member 1 is clamped between half-shells 7, 8 and the conductors C between half-shells 9, 10; the half-shells 8, 9 form a single body. As shown in Fig. 1, each clamp consists of a half-shell 2 cast around the flexible member 1 and a separate half-shell (not shown) for clamping around the conductor. The half-shell 2 may also be formed integrally with the member 1, Fig. 7 (not shown). The flexible member and clamps may be covered with or formed wholly from plastics.
Patent GB-1501084-A (GB)
Title: Heat exchanger and a solar heater including the heat exchanger
IPC: F24S23/70
Filed: 1974-02-07
Abstract: 1501084 Radiators for space heating or cooling or for utilizing solar heat IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Jan 1975 [7 Feb 1974 15 Jan 1975] 05638/74 Headings F4S and F4U In a heat exchanger comprising tubular headers (such as 11, 12, Fig. 3) interconnected by a hollow board 10 comprising a plurality of through channels (such as 23), the headers and the hollow board each consist of a plastics extrusion in which the plastics material is a highly crystalline polyolefin of the type which can be made using transition metal polymerization catalysts. The plastics material may, e.g., be polypropylene or a high density polyethylene. The headers preferably are secured to the board by a bead (e.g. 55, Fig. 6) of compatible thermoplastic material. The board 10 may be generally flat or it may be curved. For decor or functional reasons the plastics material may be coloured, e.g. black. Or the surface thereof may be painted, lacquered, or coated with a metal (e.g. copper) foil. In use, the heat exchanger may comprise a radiator for space heating or cooling; or it may be used as a solar radiation collector. In the radiation collector shown in Fig. 4, the heat exchanger 30 is mounted above thermal insulation 35 in a wood or foamed-plastics tray 31 with a glass window 34, the heat exchanger being connected to a hot-water storage tank. Fig. 10 shows another radiation collector wherein the extrusion is formed as a trough of parabolic shape, most of the solar rays directly received being concentrated by reflection from the surface 104 on to a collector 103 providing a high-temperature heat source. Indirect radiations from cross-reflections are transmitted to the fluid flowing in the extrusion channels 108 and this provides a low-temperature heat source. In another radiation collector described (Fig. 9) the channelled heat exchanger extrusion is an annulus. Curved reflectors (95, 96) direct the collected radiation on to the black outer surface of the annulus. Torroidal headers (not shown) are connected to the ends of the heat exchanger fluid channels.
Patent GB-103230-A (GB)
Title: Improved Means for the Gradation of Coal and other Materials.
IPC: B07B4/02
Filed: 1916-04-18
Abstract: 103,230. Yates, W., Martin, H. W. S., and Matthews & Yates. April 18, 1916. Pneumatic separating.-Apparatus for grading coal &c. comprises two chambers a, b separated by a wall having an adjustable aperture through which a current of air flows. The material is fed from a hopper g provided with a hinged delivery plate j, which may be adjusted to regulate the distance of the falling material from the aperture. A deflector e is provided on the delivery side of the aperture, and the chamber b is connected to a fan and a cyclone separator.
Patent GB-535509-A (GB)
Title: Improvements in and relating to autogenous heating devices for hair curling and waving
IPC: A45D7/06
Filed: 1940-03-29
Abstract: 535,509. Hair waving pads. SARTORY, P., and KNIBBS, V. S. March 29, 1940, No. 5679. [Class 64 (ii)] A pad 3, 4, containing solid reagents which react, exothermically with a liquid, applicable to the permanent waving of hair, is provided with a loose or removable sheet or pad 1 of cellulose or other absorbent material mounted upon a perforated sheet 2 of impervious paper. After immersion in the liquid, the sheets 1, 2 are applied to the heating pad so that the sheet 1 lies against the perforated cover 3 enclosing the solid reagent 4. The pad is then applied to the coiled hair with the perforated sheet 2 adjacent to it so that vapour generated may circulate through the hair. As shown, the sheet 1 is unperforated, but it may be perforated. The sheet 2 may be of woven material such as buckram.
Patent GB-953643-A (GB)
Title: Improvements in or relating to metal drawing
Inventor: HENRICKSON HENRY GEORGE
IPC: B21C1/26
Filed: 1963-02-12
Abstract: 953,643. Cupping. KAISER ALUMINUM & CHEMICAL CORPORATION. Feb. 12, 1963, No. 5709/63. Heading B3Q. A method of drawing a thin-walled tubular workpiece comprises axially aligning the workpiece successively with each of two axially aligned and spaced dies, passing the workpiece between one die and the next while maintaining the said alignment and without exerting drawing pressure on the wall of the workpioce, the workpiece not being engaged with more than one die at any one time. An apparatus for per forming the method comprises a cupping die 8 and drawing dies 5 and 6. The dies are mounted in holders 30 and aligned by rods 32. Each die has a guide portion 1a immediately following the working section which is slightly larger than the working section so that the workpiece, which is supported by a punch P, is maintained in axial alignment with the succeeding die. The spacing between the dies is such that the trailing end of the workpiece leaves one die before its leading end engages the next die.
Patent GB-723906-A (GB)
Title: Improvements in or relating to a hydraulic pump or motor and a control therefor
IPC: F01B3/10
Filed: 1952-03-05
Abstract: 723,906. Centrifugal pumps. SUNDSTRAND MACHINE TOOL CO. March 5, 1952 [March 23, 1951], No. 5748/52. Class 110 (1). [Also in Groups XXVIII, XXIX and XXXIV] The inlet 70 (not shown) of a rotating-cylinder swash-plate pump or motor (see Group XXIX) opens into an annular recess 24, Fig. 1, which is eccentric, Fig. 2, to the axis of the drive-shaft 77 of the main pump. A plurality of inlet passages 72 are provided in the end plate 23 and open from the recess 24 in the part furthest removed from the drive-shaft 77; they feed into an arcuate intake port 74 formed in an intake port plate 75 fixed in the main pump casing 10. A multi-blade backward-pitched centrifugal impeller 76 is rotated by the driveshaft 77 to provide pressurized fluid to the main inlet passages during high-speed low-inletpressure operations. The liquid is directed by the centrifugal action into the recess 24; highspeed rotary motion in this recess is prevented by a pin 78.
Patent GB-1369357-A (GB)
Title: Semiconductive devices
IPC: H01L29/00
Filed: 1972-02-08
Abstract: 1369357 Semi-conductor devices WESTERN ELECTRIC CO Inc 8 Feb 1972 [12 Feb 1971] 5763/72 Heading H1K The avalanche transistor shown (which may be photosenstivie and have transparent electrodes) has diffused emitter 18 and (non-contacted) base-16 regions formed in a high resistivity layer 14 epitaxially grown on a low resistivity substrate 12, the layer 14 and substrate 12 together forming the collector zone. (In a variant the function of emitter and collector may be interchanged). The structure is formed by diffusing boron into the arsenic-doped collector structure right through the epitaxial layer 14 to form a base region which extends from the oxide masking edge further laterally then vertically; by enlarging the masking aperture; and by diffusing phosphorus into the base region to form the emitter region 18. (The collector contact zone 28 is formed simultaneously with the emitter). By this method the surface breakdown voltage of the emitter junction is raised relative to that in the bulk to ensure that breakdown occurs within the body, since the impurity concentration at the surface emergent part of the junction is lower than that at internal parts of the junction.
Patent GB-397549-A (GB)
Title: Improvements in or relating to reinforced concrete piles
IPC: E02D5/52
Filed: 1932-02-26
Abstract: 397,549. Concrete piles. HOOD, A., 181A, Adelaide Road, Hampstead, London. Feb. 26, 1932, No. 5800. [Class 68 (ii).] A concrete pile of the kind comprising pre-cast tubular body units placed end to end in a preparatory tube and bonded by a grout of concrete is characterized by the provision of tie members, e.g. rings, passed near the ends of each of the units, and serving to connect longitudinal reinforcing rods. As shown in the Figure, the members are flat rings d with perforations through which the rods f are threaded.
Patent GB-127342-A (GB)
Title: Improvements in or relating to Submarine Signalling Apparatus.
Inventor: WHITCOMBE CHARLES PALMER
IPC: G01S1/72
Filed: 1917-04-25
Abstract: 127,342. Whitcombe, C. P., (Submarine Signal Co.). April 25, 1917. Subaqueous audible signals.-In subaqueous signalling-apparatus, the submerged transmitting or receiving diaphragm is subjected to a definite pressure independent of the pressure due to submersion. The direction and amount of pressure necessary to give maximum sensibility are determined experimentally. The pressure may be exerted by a fluid, preferably a gas-free liquid, or mechanically. As shown, the diaphragm 15, mounted in an opening in a ship's skin, is vibrated by an oscillator 9 of the kind described in Specification 18765/13, enclosed in a chamber to which compressed air is admitted to exert the required pressure on the back of the diaphragm. The pressure may be exerted by a liquid, preferably gasfree to avoid formation of bubbles near the diaphragm, and may be regulated by adjusting the head of liquid. Oil, glycerine, and aqueous solutions of sodium carbonate or potassium bichromate are mentioned as suitable liquids. Pressure may be applied to the front of the diaphragm instead of the back, and examples are described in which the liquid-containing chamber is, in one case, within and flush with, and, in the other. hemispherical and external to, the skin of the ship. A modification is also described in which the pressure is applied to the rod 17 of the oscillator, and so to the diaphragm, by a spring under adjustable compression.
Patent GB-125204-A (GB)
Title: Improvements in and connected with Internal Combustion Engines and Ignition Devices therefor.
Inventor: IKIN WILLIAM GEORGE
IPC: F02F1/24
Filed: 1918-04-06
Abstract: 125,204. Ikin, W. G. April 6, 1918. Sparking-plugs.-A spark-plug mounting consists of a broad cap f having one or more inclined sockets e<1> each for the reception of a plug and a central inspection orifice k normally closed by a cap or plug. Sparking takes place between the insulated terminals of the plugs and a wedge - shaped or conical projection b on the piston a. The spark passes to a point nearer to the apex of the member b in proportion as the speed increases and thus the timing is adjusted; or the plugs may be adjusted in their sockets.
Patent GB-641944-A (GB)
Title: Improvements in or relating to alkylated thiophene compounds and production thereof
Filed: 1947-03-03
Abstract: Alkylated thiophene compounds are produced by heating a compound containing a thiophene nucleus having at least one reactive hydrogen atom with an alkylating agent having at least three carbon atoms, in the vapour phase to 400-900 DEG  F., at pressures not greater than about 100 p.s.i. in the presence of an acid-reacting solid catalyst. Alkylation is preferentially effected in the 2 and 5 positions of the thiophene nucleus unless blocked by negative substituents. Alkylating agents include olefins, e.g. propylene, butylenes, amylenes, C3-C4 or C4 polymers, fractions of cracked gasoline or polymer naphtha, diolefins, e.g. butadiene, alcohols such as isopropanol, butanols, ethers such as isopropyl ether, esters such as alkyl halides and non-aromatic alicyclic compounds such as cyclohexanol. Catalysts include phosphoric acid on kieselguhr, hydrogels composed of oxides of amphoteric metals and/or acid anhydrides, such as silica, alumina, chromia, molybdena and acid-treated clays.  Fixed or moving bed or fluidized operation may be used. The reactants may be preheated to just below the reaction temperature which is preferably 600-700 DEG  F.  Pressure is preferably atmospheric or some 30-80 p.s.i. for propylation. Higher pressures are used with inert diluents present.  The molar ratio of thiophene to alkylating agent varies from 0.2-10, preferably from 1 to 4.  Space velocity (liquid) may be 0.2 to 5, generally 1 to 2.  In examples, thiophene and propylene are reacted at 700 DEG  F. or at 720 DEG  F. and 50 p.s.i. using phosphoric acid on kieselguhr, and at 550 DEG  F. and 100 p.s.i. in the presence of silica-alumina-zirconia.