baber/WOPTO huggingface dataset:
Patent GB-1391321-A (GB)
Title: Tyres
IPC: B60C9/06
Filed: 1972-04-17
Abstract: 1391321 Tyres A DUDUK 17 April 1972 17733/72 Heading B7C A tyre has a carcass comprising at least one first ply 10 and one or more pairs of second plies 14, 16, each ply having cords which extend from one bead of the tyre to the other and are turned up about bead cores 18, 19 in the beads, each cord of the or each first ply extending generally in a direction 10 at an angle α of 78-90 degrees to the circumferential and being sinuous (i.e. following, on an exposed ply surface as shown in Fig. 1, a path passing first to one and then to the other side of a line defining its general direction 10), and the second ply cords being disposed at 10-70 degrees to the circumferential with the cords of half the second plies being oriented oppositely to those of the other half. The sinuosity of each cord of the or each first ply 10, i.e. the angle γ, Fig. 2, between the general direction of the cord and the tangent to the cord at the maximum slope of the cord relative to its general direction, may be less than 20 degrees. The carcass cords may be made of nylon, polyester or rayon, and the denier of all the carcass cords may be 840/2 or 1260/2 or the denier of the first ply cords may be 1260/2 whilst that of the second ply cords is 840/2. The twist range of all the carcass cords may be 8-14 turns per inch "S" and "Z" construction. A breaker layer or layers may be provided beneath the tyre tread. There may, as shown in Fig. 1, be only two second plies and only one first ply, which first ply is located radially outward of the second plies, but several other examples of tyres having different numbers of carcass plies and/or different first and second ply relative dispositions are given in the Specification.
Patent GB-594392-A (GB)
Title: Improvements in driving means for the rotor shafts of ignition heads or distributorsof internal-combustion engines
IPC: F02P7/10
Filed: 1945-07-12
Abstract: 594,392. Ratchet clutches. SOC. ANON. DES USINES CHAUSSON. July 12, 1945, No. 17850. Convention date, April 11, 1944. [Class 80(ii)] [Also in Group XXVII] In order to prevent ignition on reversal of an internal combustion engine the drive of the rotor shaft of the ignition head or distributor comprises a shaft in two parts the lower part positively engaging and driven by the crank shaft of the engine and the upper positively engaging or formed integral with the rotor shaft the two parts of the shaft being held in engagement under spring pressure and formed with engaging means operable to cause a positive drive from the lower part to the upper in the normal direction of rotation only of the engine. As shown a crankshaft 2 drives a shaft 16 through a worm 3 and helical pinion 4. A coupling element 17 on the shaft is urged by a spring 22 against a second coupling element 10 on the ignition head shaft 9. In the normal direction of rotation notched helical surfaces on the elements engage and the. shaft 9 is driven. The coupling element 17 rotates with the shaft 16 by reason of a pin 21 in the shaft engaging slots on the element. When the engine rotates in reverse the coupling element 17 slides along the shaft 16, the pin 21 sliding in the slots, and spring 22 is compressed by the riding up on one another of the helical surfaces on the elements. Thus the ignition cam is not driven and ignition does not take place. Two or more notches may be provided in the helical surfaces and the shaft 16 may be driven by means other than the worm and pinion such as by gears.
Patent GB-1390194-A (GB)
Title: Comparators
IPC: G01J3/52
Filed: 1972-04-18
Abstract: 1390194 Colour comparator R W MITCHELL 18 April 1972 [19 April 1971] 17853/72 Heading G2J A filter for colour comparison purposes, comprises a stack of appropriately coloured  diaphanous films overlapping in such a manner to gain differing density of colours and differing combinations of colours and sintered density filter arranged to compensate for the varying density of the colours to gain the same overall optical density . One arrangement has a neutral point 46 occurring in colour saturation in three planes to the respective yellow, magenta and cyan corners 60, 64, 56.
Patent GB-918017-A (GB)
Title: Improvements in or relating to output control means of centrifugal fans or pumps
Inventor: COLLINS THOMAS BOSANKO
IPC: F04D29/46
Filed: 1960-05-20
Abstract: 918,017. Centrifugal pumps. DAVIDSON & CO. Ltd. March 20, 1961 [May 20, 1960; Nov. 16, 1960], Nos. 17906/60 and 39393/60. Class 110 (1). A centrifugal fan with a side inlet duct consisting of a semicylindrical part, which may be coaxial with the fan inlet eye, joined to a part of rectangular cross-section has two or more swivelling dampers, located in the rectangular part, connected by a linkage to each other, an operating handle and to a baffle, located at the periphery of the semicylindrical part of the duct. The dampers, which are defined as vanes pivoted about an axis between the two edges of the vane, can move from a fully-closed position to a fully-open position. The baffle, which is defined as a vane pivoted about one edge, moves from a position giving minimum baffling effect to a position giving maximum baffling effect as the dampers move from the fully-closed to the fully-open position. One of the dampers moves at a rate different from the others. A centrifugal fan has mounted in the rectangular side inlet duct 17 two dampers 19 and 20, rectangular in shape and arranged to overlap so as to block the duct completely when in the closed position. The damper 19 is twice as wide as the damper 20. The dampers are connected together by a linkage controlled by a handle 50 so that they rotate simultaneously but at different rates. The dampers are also connected by the linkage to a pivoted baffle 44 mounted in the semicylindrical portion 15. When the dampers are fully open the baffle provides maximum baffling effect and minimum baffling effect when the dampers are closed. In a modification, three dampers of the same size are mounted in a detachable sub-portion of the duct but with one damper rotating in parts of its travel at a different rate to the other dampers.
Patent GB-1040627-A (GB)
Title: New arginine derivatives for the treatment of hyperammoniaemia
Inventor: MAUVERNAY ROLAND-YVES
Filed: 1963-05-07
Abstract: The invention comprises arginine N-acyl-asparaginates and arginine N-acyl-glutamates and a process for their preparation comprising reacting arginine with an N-acyl-asparagine or an N-acyl-glutamine. N-Acyl-asparagines and N-acyl-glutamines are prepared by acylating asparagine or glutamine according to conventional methods. Pharmaceutical compositions, useful as cerebral and cardiac glutamics and aspartics, and as detoxifiers in hyperammoniaemia, comprise a compound of the invention and a pharmaceutical carrier.
Patent GB-879281-A (GB)
Title: Metal coating composition and method for preparing same
IPC: C09D113/00
Filed: 1960-05-23
Abstract: A coating composition for metals comprises an organic solvent solution of (a) a polymeric hydrocarbon drying oil derived from a conjugated diolefin and optionally styrene or a ring substituted styrene, said drying oil having been modified with organic acid, and (b) an aluminium mono-, di- or tri-acetoacetic acid alkyl ester wherein remaining valencies are satisfied by RCO2-groups wherein R is a C8-C18 hydrocarbon group.  The modifying organic acid may be thioglycollic, thiosalicyclic, maleic, chloromaleic or citraconic, or residual benzoic acid resulting from a free-radical polymerization process. The organic solvents specified are mineral spirits, xylene and toluene, and other materials which may be present are stabilizers, such as lower alkyl esters of acetoacetic acid, and butyl alcohol. The compositions may be coated on to aluminium, brass, black-iron, copper, terne-plate, galvanized iron and particularly tin-plated ferrous metal and may be cured by baking.  The comopsitions may be used as intercoats between drying oil films and vinyl resin top coats.  Specifications 704,607 and 761,536 are referred to.ALSO:A coating composition particularly adapted for use on tin-plated ferrous metal comprises an organic solvent solution of (a) a polymeric hydrocarbon drying oil derived from a conjugated diolefin and optionally styrene or a ring substituted styrene, said drying oil having been modified with organic acid, and (b) an aluminium mono-, di- or tri-acetoacetic acid alkyl ester wherein remaining valencies are satisfied by RCO2-groups wherein R is C8 to C18.  The compositions may also be coated on to aluminium, brass, black-iron, copper, terne-plate and galvanised iron.  The examples illustrate times and temperatures used in curing by baking.  Vinyl resin top-coatings may be applied.  Specifications 704,607 and 761,536 are referred to.
Patent GB-663429-A (GB)
Title: Improvements in the production of photographic relief images
IPC: G03C1/66
Filed: 1949-07-08
Abstract: A dispersion of an acrylate resin is prepared by adding a mixture of ethyl acrylate and acrylonitrile to an aqueous solution of potassium persulphate and trimethylbenzylammonium hydroxide buffered with sodium hydroxide and sodium dihydrogen phosphate to pH 7, running through a colloid mill, and polymerizing by heating on a steam bath in an all-glass apparatus for about one hour.  A polyvinyl acetate dispersion is prepared by mixing vinyl acetate with an aqueous solution of potassium persulphate and trimethylbenzylammonium hydroxide, and heating, and adding vinyl acetate slowly, with heating and stirring.  Polyvinyl propionate or butyrate may also be used.  A light-sensitive composition is prepared by mixing together the acrylate and polyvinyl acetate dispersions, water, and aqueous gelatine, mixing in a ball mill with titanium dioxide and water, and adding aqueous ammonium dichromate solution.
Patent GB-706607-A (GB)
Title: Process for the manufacture of dispersable solutions of fat soluble vitamins
IPC: A61K31/59
Filed: 1952-07-18
Abstract: Solutions of fat-soluble vitamins dispersable in an aqueous medium comprise one or more fat-soluble vitamins, an emulsifier which consists essentially of an acetone-insoluble phosphatide fraction obtained from soya and sufficient water-free water-miscible solvent which is miscible with said vitamin or vitamins, namely acetic acid diethylamide, to render the solutions clear.  The acetic acid diethylamide may be mixed with other water-free organic solvents, e.g. propylene glycol monomethyl ether, dimethyl formamide and 1-methoxy propanol.  Specified fat-soluble vitamins are A, D, E and K and their fat-soluble derivatives, e.g. fatty acid esters such as palmitate.  Optional additions are other emulsifiers and a polymeric substance such as polyvinyl pyrrolidone having emulsion stabilizing properties.  The added emulsifiers are (a) esters of a fatty acid containing 12 to 18 carbon atoms with a polyhydric alcohol, e.g. glycerin monostearate, sorbitan monopalmitate, ascorbyl palmitate and propylene glycol monolaurate; (b) N-alkanol substituted fatty acid amides, e.g. lauric acid-N-hydroxy ethylamide and palmitic acid-N-diethanolamide; and (c) ethylene oxide condensation products, especially polyethylene glycol ethers of m-pentadecyl phenol containing 12 to 60 ethylene oxide units per molecule and of castor oil with 40 mol of ethylene oxide.  The solutions are intended for use as intermediates in the preparation of drugs, e.g. by diluting with water or normal saline solution, or for vitaminization of foods, e.g. milk.
Patent GB-182396-A (GB)
Abstract: 182,396. Drake, S. Dec. 7, 1921. Addition to 123,474. Grates. - In domestic fire-grates of the kind described in the parent Specification, the side cheeks D, instead of being rigidly attached to the main brackets A, are loosely mounted in slots B, C, therein, by means of studs M on the cheeks. Arms E, integral with the cheeks D, carry the bottom grate H, recesses F in the arms E receiving the heel G of the grate, so that it moves with the front bars when the cheeks D, are raised or lowered. The upper slots B of the main brackets are slightly inclined and have upper bearings N of the form shown to support the cheeks in the raised position.
Patent GB-166131-A (GB)
Title: Steering gear for motor vehicles
IPC: B62D3/02
Filed: 1921-07-06
Abstract: 166,131. Columbia Carburetor Co., (Assignees of Booth, E. C.). July 6, 1920, [Convention date]. Non-reactive steering-mechanism for separatelypivoted wheels.-The steering arm is provided with a bush journaled in a fixed casing through which the steering-pillar passes, the pillar being eccentric to the bush and connected thereto by means of a groove and slot operating connection. The casing 10 is attached to the vehicle frame by means of integral brackets and is fitted with a tubular member 20 through which the steering- pillar 14 passes eccentrically; the member 20 is adjustably secured in the casing by means of an inclined set-screw. The steering-pillar has a plate 23 fixed thereto having a cylindrical socket 24 in which rides a block 25 having a diametrical slot 26 in its face. The steering-arm 32 is formed with a bush 31 riding on a reduced part of the member 20 and is fitted with a hardened steel member 35 having a tongue 36 engaging the slot 26.
Patent GB-1098246-A (GB)
Title: Production of low particle size-high surface area metal powders
IPC: C22B34/12
Filed: 1965-04-30
Abstract: A process for forming a metal powder from a volatile fluoride of a metal of Group IIIb, IVa, Va, VIa, VIIa or VIIIof the Periodic Table comprises passing the fluoride in hydrogen or fluorine into either the nozzle or surrounding annulus of a composite nozzle arrangement, the non selected carrier gas being passed through the other passageway of the nozzle arrangement. The hydrogen and fluorine are reacted to cause ignition, the resultant metal powder being collected and the reaction gases withdrawn from the reaction zone.  An alloy powder may be produced by including at least one of the above volatile metal fluorides in the hydrogen and at least one other in the fluorine stream.  For making a single metal powder the metal fluoride may also be put into both the hydrogen and fluorine streams. The powder may be purified by treatment in hydrogen at 540 DEG  -815 DEG  C. for 8-24 hours and may be compacted and sintered (e.g. under vacuum).
Patent GB-186449-A (GB)
Title: Improvements in and relating to electrically heated ovens
IPC: F24C7/06
Filed: 1921-07-07
Abstract: 186,449. Berry, H. H. July 7, 1921. Resistance ovens.- A cooking-oven a is provided with a number of resistances exposed to air and positioned in concave and preferably parabolic reflectors 1 adapted to direct the heat from the resistances to the same part of the oven. The oven may be open at the bottom and an ordinary portable electric radiator 7 of the type shown in Fig. 4, may be positioned underneath it. In this case the oven is provided with a central wirework shelf and a window. Each resistance is preferably controlled by a separate switch and the door of the oven may operate a switch which makes or breaks the circuit to the resistances according to whether the door is shut or open. The oven may be preheated in any known manner by steam, hot water or hot air coils, or a jacket. According to the Provisional Specification, the oven may be used for stoving enamelled articles and other industrial purposes.
Patent GB-1047522-A (GB)
Title: Improvements in or relating to variable impedance electrical circuits
Inventor: WILSON FREDERICK ARTHUR
IPC: H04M1/58
Filed: 1962-05-14
Abstract: 1,047,522. Transistor variable impedance circuits; substation circuits. H.M. POSTMASTER GENERAL. May 3, 1963 [May 14, 1962], No. 18523/62. Headings H3T and H4R. A transistor has its base-emitter circuit arranged to rectify input signals and its collector connected in series with a variable impedance circuit (D1, D2) so that variation of input signals causes variation of the impedance between the terminals (XY) of the impedance. The circuit may comprise an input signal amplifier (Fig. 2, not shown) and may be used in a telephone head or hand set (Fig. 3, not shown). By connecting the input terminals across the microphone Tx and the impedance terminals across the receiver the receiver is increasingly shunted by the impedance as the signal level increases so that side tone is reduced. Further, as part of received signals are developed across the microphone the circuit will act as an automatic level control for received signals.
Patent GB-588718-A (GB)
Title: Improvements in machines for winding yarn and other filamentary material
IPC: B65H54/14
Filed: 1944-09-28
Abstract: 588,718. Winding yarn &c. CLARK, D. M. (Abbott Machine Co.). Sept. 28, 1944, No. 18634. [Class 120 (ii)] A winding-machine comprises, in combination, a plurality of filling winding units each including thread-traversing means, an abutment for co-operating with the units and means for causing relative movement between the units and the abutment, the latter being shaped and located to act on the thread-traversing means of each unit to progressively shift the zone of traverse from the base to the tip of the package during the relative movement. A plurality of winding spindles 62, each carried by a frame element 40, running upon rails 11 and driven by an electric motor 63 which also drives a cam 72 to effect the traverse of the guide T through a reciprocating rod 66, move in a closed path counter-clockwise, rails 600, 601 gradually moving the guide T along the traverse rod 66 from the base towards the tip, the guide frictionally engaging the rod 66, to build up the package. The elements 40 are each linked to a chain 14<1>, moved by sprokets, 15, one of which is motordriven. Upon completion of the wind, an inclined rail 473 brings the guide back to the base of the bobbin, and a rail 590 moves a spring biassed lever 100d carried by the outer end support of the bobbin, to release the wound package, a new bobbin being supplied by a magazine 112 at X X. The rail 473 is followed by another rail 473a which effects movement of the traverse guide T to build a starting bunch of the fresh package. Specification 522,664 is referred to.
Patent GB-865612-A (GB)
Title: Improvements relating to blind screw and nut fasteners
IPC: F16B19/10
Filed: 1958-06-11
Abstract: 865,612. Rivets; locking nuts &c. NATIONAL SCREW & MANUFACTURING CO. June 11, 1958 [June 11, 1957], No. 18641/58. Class 89(1). A rivet for insertion and clinching from one side of a workpiece comprises a bolt B, Fig. 2, having a head 11 and a shank 10 with a screwedpart 35 and a driving-recess 21, a nut E engaging the screwed-part, and a sleeve CD between the bolt-head and the nut. The nut has a head 15 with driving-slots 22, a cylindrical-body 14, and a conical-end 16 co-operating with a tapered-bore 13 in the sleeve. Body 14, sleeve CD and head 11 are of substantially equal diameter. Sleeve CD may be in one or two pieces, piece C being expanded by head-surface 12 as the nut is tightened on the bolt. The bolt-end including recess 21 finally breaks off at weakened-neck 23. In a modification, sleeve C, Fig. 5, is spread by a coned-end 12 of sleeve D. The nut is locked to the bolt by its end 16 being pressed against the bolt-threads by sleeve-portion D.
Patent GB-1074358-A (GB)
Title: A means for providing a variable fefernece voltage of reversible polarity
Inventor: LANG ALBIN
IPC: H03M1/00
Filed: 1966-04-28
Abstract: 1,074,358. Transistor switching circuits. BÍLKOW G.m.b.H. April 28, 1966, No. 18673/66. Heading H3T. [Also in Division G3] A voltage polarity switching circuit comprises a bridge network having four arms constituted respectively by transistors T 1 , T 2  and equal resistors R 1 , R 2 , and the bridge current flows through a variable resistor Rst the voltage drop across which is applied to an amplifier V associated with a standard voltage source N, the amplifier V being connected to the bases of transistors T 1 , T 2  which are thereby controlled so that for any particular setting, the voltage drop across resistor Rst is maintained equal to the voltage of the source, i.e. the bridge current is maintained constant. The arrangement thus provides at the diagonal AB of the bridge network a stable voltage of a value determined by the setting of resistor Rst and this voltage is of one polarity when T 1  is conductive and T 2  non-conductive and of the opposite polarity when T 1  is non-conductive and T 2  conductive, the transistors being controlled in this respect over diodes D 3 , D 4  by an electronic switch (not shown). This adjustable voltage of reversible polarity may be used as a reference voltage, e.g. for a digital voltmeter.
Patent GB-202135-A (GB)
Title: Improvements in or relating to straight-bar knitting machines
IPC: D04B23/00
Filed: 1922-07-08
Abstract: 202,135. Hobley, J. H. M., and Hobley, C. J. July 8, 1022. Straight - bar machines; warp machines. - Machines such as double-rib warp machines, having two inclined needle bars 1, 2 moved alternately so as to work with fixed. knocking-over bars 30, 31 placed between them, are provided with cams 8 which control the movement of the needle bars both up and down and the knocking- over bars are made adjustable. The bars 1, 2 are attached at their ends to plungers 1<a>, 2a which slide on keys 6 in bearings 3 and have adjustably mounted rollers 9 working in the camgrooves 8<a>. The cam shafts 7, 7<a> are driven by spur wheels one of which, 14, has a clutch mamber 15 which normally engages a corresponding member 16 keyed so as to slide on the shaft 7<a> and operated by a lever 17 under control of the pat. tern mechanism. A screw head 28 bears on the end 24b of an horizontal bell-crank 24 the other end 24<a> of which is drawn by a spring 27, when the clutch parts 15, 16 are disengaged, into contact with a plate 23 on the cam 8, rotation of the shaft 7<a> being thus prevented. The knocking- over bars 30, 31 are carried by angle brackets 32, 33 horizontally adjustable, on vertically-slid able cross-pieces 34 which bear on adjusting-screws 35.
Patent GB-1008897-A (GB)
Title: Xerographic printing
IPC: G03G15/26
Filed: 1962-05-16
Abstract: 1,008,897. Electrophotographic processes. RANK-XEROX Ltd. May 16, 1962. [June 12, 1961], No. 18835/62. Heading G2H. [Also in Division B6] Composite images are produced on a copy sheet 26, Fig 4, on a metal cylinder 27 by charging a xerographic plate 10, for instance with a corona discharge, Fig 1 (not shown), exposing the plate to an illumination pattern produced by an original 15, Fig 2, and an incandescent bulb 13, developing the latent image, transferring the image to the sheet 26 by rotating the roller, and repeating the whole process at least once, but with a developed image having a density range corresponding to a different density range in the original, each transfer being carried out in register so that each transfer subsequent to the first places the image on top of the previously transferred image. After each transfer, any residual image is removed and the plate is again sensitized and re-exposed etc. Using selected magnitudes of exposure in each cycle in order to obtain the required contrast characteristics. The composite image is fixed on the sheet 26 by heat or the action of solvent vapour, e.g. trichloroethylene or benzene. A half-tone dot or line screen 18 may be used during exposure, said screen being rotated through 30 degrees between each exposure. The latent image may be developed by cascade techniques, by a liquid suspension of electroscopic particles, by applying a layer of electroscopic particles in contact with the latent charged image, by magnetic screens, or by powder cloud techniques, Fig 3 (not shown), using a development electrode. In Fig 4, image transfer is assisted by a potential applied between the conductive backing 35 of the plate and the cylinder 27. Alternatively, a charged image may be attracted on to a sheet by a charge of opposite polarity. The image itself may include materials of both polarities.