baber/WOPTO huggingface dataset:
Patent GB-1003948-A (GB)
Title: A process for preparing organosilicon compounds
IPC: C07F7/08
Filed: 1964-04-06
Abstract: Aromatic silanes and disiloxanes are prepared by reacting (1) a silane RnHmSiX4-m-n, or a disiloxane HpSi(R)3-p-O-SiHr(R)3-p, with (2) an aryl compound of formula <FORM:1003948/C3/1> so that at least one hydrogen atom in (1) is replaced by an aromatic radical from (2) with the elimination of R1H, wherein R is an aryl, alkyl, aralkyl or alkaryl radical, R1 is an aralkyl radical, R11 is an alkaryl radical, the radicals R, R1, R11 each containing up to 4 aliphatic carbon atoms, X is a halogen atom, m is 1 to 2, n is 0 to 3, m+n is 1 to 4, p, r, a, b are each 0 to 2, p+r is at least one, and a+b is 0 to 2. The reaction is preferably effected at 350 DEG  to 650 DEG  C. Typical silane reactants are H2SiCl2, HSiCl3, C4H9SiHCl2, CH3(CH3C6H4) SiHBr, (C6H5)2SiH2, C6H5CH2(H)2SiF; typical aryl compounds are CH3C6H4CH2C6H5, <FORM:1003948/C3/2> (C6H5)4C; in both cases other reactants are exemplified.  Typical Examples describe the reaction of (1) dimethylchlorosilane with 1,4-dibenzylbenzene to give 1,4-bis-(dimethylchlorosilyl)-benzene; (7) tetramethyldisiloxane with diphenyl methane to give diphenyltetramethyldisiloxane.
Patent GB-881854-A (GB)
Title: Improvements relating to pipe bending
IPC: B29B13/02
Filed: 1958-05-12
Abstract: 881,854. Bending thermoplastic pipes. BTR. INDUSTRIES Ltd., and GRIFFITHS, C. W. T. April 6, 1959 [May 2, 1958], No. 14130/58 Class 87(2). [Also in Group XI] A pipe 11 of e.g. polyvinyl choride is bent around a former whilst supported on an inflatable member 10. The pipe may be heated by electric elements in hinged semi-circular members, Fig. 2 (not shown), or in the member 10 or by hot air or a propane torch. The member 10 may have a pressure relief valve.
Patent GB-476727-A (GB)
Title: Improvements in the manufacture and production of interpolymerisation products
IPC: C08F222/14
Filed: 1937-05-21
Abstract: The invention described in the parent Specification is modified by the use of fumaric instead of maleic esters, the products being useful for the same purposes.  In examples: (1) vinyl chloride and dimethyl fumarate are emulsified in an aqueous solution of sodium a -hydroxyoctodecane sulphonate, hydrogen peroxide, potassium persulphate and formic acid, and polymerized at 40 to 45 DEG  C., the polymerizate being coagulated by aluminium sulphate solution, washed with water followed by dilute caustic soda, filtered, and dried to give a product soluble in methylene chloride; (2) diethyl fumarate is emulsified in an aqueous solution of sodium a -hydroxyoctodecane sulphonate, sodium persulphate, hydrogen peroxide, and ammonium formate, and vinyl chloride is added, the mixture being then polymerized at 45 DEG  C., unchanged fumarate being blown off by steam and the product worked up as in example 1. There may be used instead of diethyl fumarate the neutral fumarate of ethylene glycol monomethyl ether or di-n- or di-iso-butyl fumarate or the fumarates of mixtures of aliphatic alcohols having 6 and 7 carbon atoms (such as are obtained in the catalytic hydrogenation of carbon monoxide), the products being particularly suitable for insulating and jacketing cables. Specifications 376,479 and 466,898 are referred to.
Patent GB-650995-A (GB)
Title: Improvements in directional refractors for street lighting
IPC: F21V5/00
Filed: 1948-05-28
Abstract: 650,995. Refractor bowls. REVO ELECTRIC CO., Ltd., FELTON, A. E., and HARTILL, P. May 28, 1948, No. 14394. [Class 75(ii)] A directional refractor for street lighting comprises a transparent inverted bowl a having a smooth interior surface and an exterior surface which is formed on its middle and lower zones with graded prisms a<SP>3</SP>, such bowl being enclosed by a plain glass dust-tight sheath b to facilitate cleaning. The sheath b is sealed at its upper and lower edges to a shoulder a<SP>7</SP> and an outwardly directed flange a<SP>2</SP> respectively of the bowl a, shoulder a' being formed below a neck a<SP>5</SP>. A reflector (not shown), is housed in the neck a<SP>5</SP> and receives and re-directs light rays passing through the plain upper zone of the bowl. The prisms a<SP>3</SP> are disposed and arranged so as both to refract and reflect, to produce two major beams at 180 degrees or 160 degrees one to the other.
Patent GB-1248931-A (GB)
Title: An improved steering gear of the circulating ball type
IPC: B62D3/08
Filed: 1968-09-26
Abstract: 1,248,931. Toothed gearing. N. WADDLETON (Koyo Seiko Co. Ltd.). 26 Sept., 1968, No. 14497/68. Heading F2Q. In a variable ratio steering gear comprising a nut 4 mounted on a helical groove 2, formed in a steering shaft 1, by circulating balls 6, and a toothed sector 9 on an output shaft 8 meshing a rack 7 formed on the nut 4, teeth on each side of a central tooth of the sector 9 have a pitch diameter which progressively increases in accordance with angular displacement of the sector from its neutral position to provide uniform variation of the gear ratio, and the change in pitch diameter is accompanied by a similar symmetric increase in the number of teeth, i.e. the number of teeth the sector would have if it were a complete circular gear. The pressure angles on the right- and left-flanks of the rack teeth meshing with the sector may be unequal in order to increase the thickness of the dedendum of the neutral tooth in the middle portion of the sector.
Patent GB-769652-A (GB)
Title: Improvements in the manufacture of ª aminovinyl carbonyl compounds
Filed: 1955-05-20
Abstract: Amino-aldehydes and amino-ketones of the formula X-CR=CH-CO-R1, where X is amino or substituted amino and R and R1 are hydrogen, alkyl or aryl are obtained from alkynols R-C­C-CHOH-R1 and ammonia or a primary or secondary amine in the presence of an oxidizing agent and, if desired, an inert diluent.  Examples show the preparation of (1) b -diethylamino-acrolein from propargyl alcohol, diethylamine and manganese dioxide, lead dioxide, manganese dioxide + sodium sulphate, or potassium permanganate + magnesium sulphate; (2) b -dibutylamino-acrolein from propargyl alcohol, dibutylamine and cupric oxide; (3) b -dicyclohexylamino-acrolein from propargyl alcohol, dicyclohexylamine and manganese dioxide; (4) b -methylanilino-acrolein from propargyl alcohol, N-methylaniline and manganese dioxide; (5) methyl b -diethylaminovinyl ketone from but-1-yn-3-ol, diethylamine and manganese dioxide; (6) methyl b -isobutylaminovinyl ketone from but-1-yn-3-ol, isobutylamine and manganese dioxide; and (7) phenyl b -piperidinovinyl ketone from 1-phenyl-prop-2-yn-1-ol, piperidine and manganese dioxide. Other specified reactants are pent-2-yn-4-ol, hept-2-yn-1-ol, 3-phenylprop-1-yn-3-ol, methylamine, ethylamine, propylamine, t.-butylamine, dimethylamine, dipropylamine, pyrrolidine, tetrahydroquinoline, morpholine, aniline, ethylaniline and corresponding toluidines.  Other specified oxidizing agents are auric oxide, mercuric oxide, higher oxides of vanadium, the sesquioxides of chromium, iron, cobalt and nickel, aluminium, ceric oxide, manganese triacetate, lead tetra-acetate, zinc, magnesium, silver and barium permanganates, hydrogen peroxide, quinones, nitrobenzene and nitroanisole.  Permanganates may be used with alkali-binding substances such as carbon dioxide, magnesium nitrate and aluminium sulphate.
Patent GB-1241594-A (GB)
Title: An improvement in gas-cushion vehicles
Inventor: HUNT ROWLAND DELVILLE
IPC: B60V1/16
Filed: 1968-03-26
Abstract: 1,241,594. Gas cushion vehicles. VOSPER Ltd. 24 March, 1969 [26 March, 1968], No. 14570/68. Heading B7K. A gas cushion vehicle has a plurality of power-operated swingable members 14 each pivoted at one end on the hull 10 and connected at the other end to the skirt. The full skirt 11 includes a segmented lower part 12 the segments of which are divided into groups of say, ten, along the sides, front and rear of the vehicle each group being interconnected by a rod 13 and each segment being pivoted to the hull 10 by a link 14. To vary the centre of pressure of the gas cushion the segment groups may be moved outwards or inwards by jacks, each of which operates to move corresponding segments in opposite groups by a pair of links 45 attached at one end to the jack and at their opposite end to the rods 13 at opposite sides of the vehicle adjacent the lower ends of the rods 14. The jacks are controlled by an aircraft type column, pivotable at its lower end about a transverse axis to control longitudinal motion of the segments and provided at its upper end with a half steering wheel movable about a longitudinal axis to control lateral movement of the skirt segments. In a modification, Fig. 2 (not shown), the pivoted links 14 are rigid and each pair of links 15 is replaced by a pair of pivotally mounted jacks (20) operatively interconnected so that corresponding segments on opposite sides of the vehicle are moved in the same direction. In another modification, the links 14 are pivotally connected to the links 15 near the lower ends of the former or near the inner ends of the latter. In a further modification, the links 14 and/or the links 15 are replaced by flexible cables or chains. In yet another modification, in order to improve transverse and vertical flexibility and to maintain the skirt substantially parallel to the hull, the inner comers of the skirt segments at the front and rear of the vehicle are connected to inwardly extending fabric beams consisting of laterally continuous lengths of skirt material.
Patent GB-427509-A (GB)
Title: Improvements in or relating to electron discharge tube apparatus
IPC: H03B13/00
Filed: 1934-05-15
Abstract: 427,509. Discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Haines, D. G. ; 34, Ella Street, Bloomfield, and Headrick, L. B. ; 26, Winans Street, East Orange, both in New Jersey, U.S.A.) May 15, 1934, Nos. 14672 and 14673. Convention dates, May 30, 1933. [Classes 39 (i) and 40 (v)] A tube comprises a target formed of a plurality of sections of materials having differing secondary electron emissive properties and means for causing the electron stream to traverse the target. In one form, a tube suitable for use in a frequency-multiplying circuit comprises a straight cathode 1, a shield 2, an accelerator grid 3 to which modulation signals may be applied, an apertured anode 4, a pair of deflector plates 6, 7 an anode structure 8 and an auxiliary anode 11. The structure 8 consists of rectangular strips 9 of nickel or the alloy known under the Registered Trade Mark " Nichrome," which are carbonized and are welded to a nickel mesh 10. The auxiliary anode may consist of nickel sheet which is pertused from the back and backed by another nickel sheet. As the beam is deflected across the anode 8, the current to the anode will be alternately high and low, whereas the current to the auxiliary anode will be alternately low and high. In a modification, a circular target may be divided into a number of sectors having different secondary emitting powers. The beam is then given a circular deflection. In another modification, a target consists of alternate strips of materials such as a carbonized nickel or carbonized nichrome and bright nickel or untreated copper and is mounted at the end of a conical cathode-ray tube. A silver coating on the conical wall receives the secondary electrons emitted and is connected to the cathode of an amplifier valve to the grid of which the target is connected. Electromagnetic deflection may be substituted for deflecting plates in each case. Curves are given showing the secondary emitting properties of zirconium sheet, bright nickel mesh on nickel bright nickel sheet, nichrome fired at 1000‹ C, in hydrogen, carbonized nickel, carbonized nichrome, copper sheet and sand-blasted molybdenum.
Patent GB-612175-A (GB)
Title: System utilising the energy of the waves
IPC: F03B13/22
Filed: 1946-05-15
Abstract: 612,175. Utilizing wave energy. GAY, A. May 15, 1946, No. 14676. [Class 69 (i)] Apparatus for the utilization of the energy of waves comprises a series of converging dihedral channels 6 of sufficient depth below low-water level that the waves do not break in the channels. Each channel has at the narrow end a control gate 8 that permits water to flow into a reservoir 7 but not in the reverse direction. The control gate may consist either of a series of guide vanes 10, set at an ever increasing angle to the horizontal the higher their position in the structure, or a series of open conical passages. Both the vanes and the passages have flap valves 11 fitted at the rearward side, and to reduce the back flow to a minimum the valves are fitted with a circular lip.
Patent GB-660495-A (GB)
Title: Anti-slip device for rubber-tyred tractors and the like
IPC: B60C27/20
Filed: 1949-06-01
Abstract: 660,495. Wheel tyres. RITSCHER, K. June 1, 1949, No. 14681/49. Class 144 (ii). A detachable tread band for use on rubbertyred tractors and like vehicles comprises shoes having ground-engaging bars connected at their ends to side-guides and held taut across the tyre-tread by chains and springs. In the form shown in Fig. 1, each shoe comprises three spaced cross-bars 5 connected by V-shaped brackets 8, 9, 10 to a base fitted with a lug 6 for attachment to chains slung from the tensioning-springs 4.
Patent GB-1433109-A (GB)
Title: Method and apparatus for the heat treatment of fine grained material
IPC: F27B7/34
Filed: 1974-04-03
Abstract: 1433109 Suspension preheaters POLYSIUS AG 3 April 1974 [15 May 1973] 14767/74 Heading F4B In a combined suspension preheater 1 of the multiple cyclone and whirl chamber type and a rotary furnace 4 for the burning of fine ground cement raw materials, fuel burners 9 are disposed in the gas pipe 5 leading to the first pair of cyclones 2 and 3 below the point 7 at which preheated materials enter said pipe. Above the burner 9 is a bridge shaped distributor member 8 and additional reserve burners 10 are disposed above the point 7. In a modification (Fig. 4) the invention is shown applied to a shaft type suspension preheater formed with a series of restrictions spaced vertically above one another. The O 2  content of the gases in the firing zone is in the range 5-14%, preferably 8-12%.
Patent GB-1421245-A (GB)
Title: Tape transport for recording and playback apparatus especially for teaching machines
IPC: G11B15/50
Filed: 1973-03-28
Abstract: 1421245 Feeding, winding webs BADISCHE ANILIN- & SODA-FABRIK AG 28 March 1973 [29 March 1972] 14847/73 Heading B8R [Also in Divisions F2 and G5] A reversible two-speed tape transport, having two spool-drive spindles 2, 3 and two oppositely rotating capstans 11, 12 which are selectively engageable by respective electromagnetically actuated pinch rollers 34, 35 for driving the tape, comprises a single motor 23 driving, e.g. through a belt 26, at different rotary speeds two drive pulleys 13, 14, Fig. 1, of different diameters and each coaxial with a different capstan, which can be selectively coupled to their respective capstans 11, 12, e.g. by operating the relevant one of two electromagnetic clutches 18, Fig. 3. As shown, there are two electromagnetically actuated devices 71 of which only one is shown for selectively coupling the capstans 11, 12 and the spindles 2, 3, and separate braking devices 61, 62 and 52, Fig. 2, respectively for the spindles 2, 3 and for the motor 23. A belt 33, Fig. 2, keeps the two capstans 11, 12 rotating in opposite directions at the same speed, this speed being determined by which of the two differently-sized drive pulleys 13, 14, Fig. 1, is clutched to its associated capstan.
Patent GB-752846-A (GB)
Title: Method and means for securing screwthreaded cores
IPC: H01F17/04
Filed: 1954-05-20
Abstract: 752,846. Transformers and inductors. NEOSID PEMETZRIEDER GES. May 20, 1954 [June 11, 1953; Aug. 19, 1953; Jan. 14, 1954; Jan. 22, 1954], No. 14866/54. Class 38 (2). A core 2, magnetic or non-magnetic, is adjusted in a holder 3 by means of co-operating screw threads, a member 1 of a foamed material, such as a plastic, being inserted between the two elements so as to ensure that the core may be easily adjusted but is held against unwanted movement. A lubricant may be used in order to ensure that the foamed member 1 moves with the core 2 to which it is adhesively secured. Alternatively the member 1 may be stationary with the holder 3.
Patent GB-436102-A (GB)
Title: Improvements in and relating to electrically conductive harpoon lines and harpoons therefor
IPC: F42B30/14
Filed: 1934-05-17
Abstract: The elongation of the electric conductor of an harpoon line is the same as that of the rope in which the conductor is encased. The conductor comprises a square rubber core encased in a fabric sleeve, wires wound round the sleeve with a short pitch twist, and a rubber jacket.  When the conductor is under tension the rubber core is compressed by the wire coils.  In a modification the conductor comprises wires and rubber threads twisted together, and encased in a rubber sleeve.  In another modification steel wires are wound round a hemp core.  The wires are encased in a rubber sleeve and a rope made up of two layers of hemp cord, or layer of sisal cord and four layers of hemp yarn.  Three such lines are twisted together with a twist opposite in sense to that of the hemp core and steel wires.  In another modification three steel wire strands with a right twist are twisted together with a left twist around a jute core.  The spaces between the rope are filled with jute.  In a further modification three ropes are twisted together each rope consisting of three steel wire ropes.  The steel ropes comprise three sub-cords each of which is formed of three steel wires.
Patent GB-652229-A (GB)
Title: Improvements in or relating to the production of magnesium base alloys
IPC: C22C1/02
Filed: 1946-05-17
Abstract: Zirconium and beryllium are introduced into magnesium by means of a composition which is capable of introducing zirconium solubly into magnesium and which contains a reducible halide of beryllium such as beryllium fluoride or the fluoberyllate of an alkali metal.  The ratio of zirconium to beryllium is preferably between 50 and 500 to 1.  The composition, in addition to the beryllium halide may consist of an intimate fused anhydrous mixture of at least one of the chlorides of barium and/or strontium and zirconium chloride, the mixture containing at least 15 per cent of barium chloride or at least 20 per cent of strontium chloride or a mixture of the two in amounts equivalent to 15 per cent barium chloride reckoning 1 per cent of strontium chloride to 0.7 per cent barium chloride, the mixture containing at least 4 per cent of zirconium.  The composition may consist of zirconium fluoride mixed or combined with one or more fluorides of lithium, barium, strontium, calcium and magnesium, selected so as to be fluid at the alloying temperature, and beryllium halide.  The composition may consist of beryllium and at least one of the following three phases: (1) a metallic matrix phase consisting mainly of magnesium and/or one or more "permissible elements" as defined below; (2) a metallic phase consisting mainly or wholly of zirconium and (3) a salt phase in quantity not exceeding 30 per cent of the whole and consisting mainly or wholly of one or more halides, the composition being substantially free from "zirconium alloying inhibitor elements" and containing at least 1 per cent of zirconium. The composition may consist of one or more chlorides of alkali and alkaline earth metals (including magnesium), together with mixtures or compounds of zirconium fluoride and sodium and/or potassium fluoride together with a beryllium halide.  Any of the above compositions may contain up to 20 per cent of innocuous substances, i.e. compounds of zirconium or of "permissible elements" or such compounds of "zirconium alloying inhibitor elements" which do not give rise to these inhibitor elements in molten magnesium. "Zirconium alloying inhibitor elements" are defined as elements which form high melting point compounds with zirconium and thus precipitate zirconium from solution in magnesium-zirconium alloys. "Permissible elements" do not form such compounds and the most important of these elements are zinc, cadmium, cerium, silver, thallium, thorium, copper, bismuth, beryllium, lead and calcium. The production of magnesium-base alloys containing zirconium and beryllium may be performed by stirring the composition into magnesium or a magnesium base alloy in the absence of "zirconium alloying inhibitor elements" and casting the product into moulds.  Specifications 511,137, 511,291, 652,222, 652,223, 652,227, and 652,230 are referred to.
Patent GB-1384522-A (GB)
Title: Circular knitting machine for making weft knitted fabrics  including ground yarns and weft yarns held together by said loops
IPC: D04B9/16
Filed: 1973-03-29
Abstract: 1384522 Knitting NAUCHNO - ISSLEDOVATELSKY INSTITUT PO PERERABOTKE ISKUSSTVENNYKH I SINTETICHESKIKH VOLOKON and CHERNOVITSKY ZAVOD LEGKOGO MASCHINOSTROENIA 29 March 1973 15081/73 Headings D1C and D1K A circular machine for knitting fabrics with inlaid warps and wefts; includes guides for the inlaid yarns and sinkers with a bifurcated hook 73 to catch the warps. In a rotary cylinder machine, the cylinder 8, draw-off 10 and take-down 11, and ring 17 supporting the warp yarn beams 20 are driven from a motor 3 by a shaft 5. The yarns are guided by combs 23, 24 and guides 79. A stationary ring 14 supports upper and lower creels 15, 16 for ground yarn bobbins 35 and weft bobbins 42 respectively. Bobbins 101 of plating yarn 97 are carried by the lower creel. The ground and weft yarns are supplied by similar guides (90 Fig. 3 not shown), 96 fixed to the top of the sinker ring.  In operation the needles are lowered to take and knit the ground yarn 34, and plating yarn 97 if provided, while the sinkers are withdrawn. The warp yarns 22 rotate with the needle cylinder and are guided between the needles. When the needles lower, the sinkers move radially inwards to push the weft yarn 43 over the back of the needles. The warps are also retained by the hook of the sinker.  To commence a new fabric, the warp yarns are threaded-up through to the draw-off. The needles are lowered so that the heads are below the sinker throat, and the latches held open. The needles rise to take yarn while the sinkers are retracted, when the needles are lowered, the sinkers are projected to push the weft yarn over the needles and between the warp yarns and loops of the ground yarn. Knitting normally resumes at the next feeding station.
Patent GB-138803-A (GB)
Title: Improvements in the valve gear of internal combustion engines
IPC: F02B75/02
Filed: 1919-06-16
Abstract: 138,803. Woodgate, H., and Main, A. June 16, 1919. Valve-gear.-In an engine having cylinders in one plane and the pistons of each opposite pair of cylinders connected to cranks 180 degrees apart, the inlet and exhaust valves are located in the heads of the cylinders, and are actuated by camshafts d each disposed between a pair of sliding members e carrying cam rollers e' and connected to ball-ended valve-rods h. Two exhaust valves and one inlet valve are located in each cylinder, and the valves are held to their seats by laminated springs.
Patent GB-1515105-A (GB)
Title: Electrode grid for lead accumulators
IPC: C22C11/06
Filed: 1977-04-12
Abstract: 1515105 Lead alloy battery electrode BATTELLE MEMORIAL INSTITUTE 12 April 1977 [13 April 1976] 15114/77 Heading C7A An electrode grid for a battery is formed of an antimony-free alloy containing in weight per cent Te, As, Ag # 0À1 in total Sn # 0À1 Pb balance