baber/WOPTO huggingface dataset:
Patent GB-925147-A (GB)
Title: Method for the preparation of 2-chloro 3-bromo propene and of propargyl bromide
Inventor: PEER HENDRICUS GERARDUS
IPC: C07C17/20
Filed: 1960-11-14
Abstract: Propargyl bromide and/or 2-chloro-3-bromoprene-1 or mixtures containing them are prepared by reacting propargyl chloride and/or 2,3-dichloropropene-1 or mixtures containing them, with an inorganic bromide in the presence of an organic solvent in which the inorganic bromide dissociates partly or completely into positive ion and bromide ion.  Specified solvents are dimethylformamide, methanol, glycol and acetone; specified bromides are NaBr, LiBr, and CaBr2. The products of the invention have nematocidal properties (see also Group VI).ALSO:Nematocidal compositions contain propargyl bromide and 2-chloro-3-bromopropene-1, and may also contain the respective starting materials used for obtaining these products (see Group IV (b)), i.e. propargyl chloride and/or 2,3-dichloropropene-1.
Patent GB-874821-A (GB)
Title: Exposure meter
Inventor: HAHN ERICH
IPC: G01J1/42
Filed: 1959-11-18
Abstract: 874,821. Photo-electric exposure meters. KAMERA-UND KINOWERKE DRESDEN VEB. Nov. 18, 1959, No. 39101/59. Class 40(3) [Also in Group XXXVI] In a photo-electric exposure meter the angle of magnetization of a meter core magnet is adjustable relative to the meter zero position. Zero position of indicating arm 25 actuated by pin 24 fixed to moving coil 22 is set by temporarily releasing screw 29 and rotating arm 28 fixed to return spring 26. The angle of magnetization of core magnet 21 is set by temporarily releasing screw 19 and rotating magnet assembly 20, 21, 32. In modifications spring 26 may be fixed to a camera housing and arm 25 may control the camera diaphragm.
Patent GB-879735-A (GB)
Title: Improvements in television picture demodulators
IPC: H04N17/04
Filed: 1959-11-19
Abstract: 879,735. Valve amplifying circuits; testing radio apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Nov. 19, 1959 [Nov. 21, 1958], No. 39276/59. Classes 40(5) and 40(6) A television receiver demodulator comprises a detector followed by a pair of valves, the cathodes of which are coupled through a frequency rejector circuit, and are also connected through impedances to a negative supply source, the anode of the first valve being earthed. The video output from a detector 21 is applied between the grids of valves 10, 11 whose cathodes are connected together by a circuit 18 comprising a parallel resonant circuit 29, 30 tuned to reject the sound signal, and a resistor 28. The inductor resonates with the input capacitance of the valve 11 at a frequency just below its parallel resonance with capacitor 30 to increase the gain at this point. The receiver may be used for making measurements and to provide a reference signal a switching waveform is derived from transformer 35, Fig. 1, and applied to the grid of I.F. amplifier 32 to switch it on and off.
Patent GB-361174-A (GB)
Title: Improvements relating to portable gas-producers
IPC: C10J3/34
Filed: 1930-12-31
Abstract: 361,174. Gas producers. GOHIN, J., 35, Avenue de Paris, Choisy-le-Roi, Seine, France. Dec. 31, 1930, No. 39367. Convention date, Dec. 31, 1929. Addition to 323,147, [Class 55 (i), Coking &c.]. [Classes 51 (ii) and 55 (i).] Charges, agitating.-In a portable gas producer of the kind described in the parent Specification, and in which the reaction zone is localized away from the walls by means of high speed air injection through water cooled nozzles, the clinker 14 formed on the nozzle 22 is removed by a poker 11 mounted in a stuffing box 12, or by twin pokers 27, 28 mounted on a shaft 29 rotated by a crank 33. The oscillating pokers are cooled by water which circulates through a radiator 32. A metal float 20 resting on the surface of the fuel closes by a cable 21 the blast supply to the nozzle 22 when the fuel level falls. Any unconsumed fuel may be burned by supplying air below a grid just above the ash discharge so that the slag formed may flow more freely. The melted slag may be withdrawn through a tube 23, Fig. 4, into a hydraulic separator 24, the gases also passing out through this tube and an outlet 34, and the powdered slag in suspension flowing out through the overflow 35.
Patent GB-1133270-A (GB)
Title: Improvements in or relating to electric cables
Inventor: HAMPTON BRIAN FRANK
IPC: H02G5/06
Filed: 1966-09-02
Abstract: 1,133,270. Cables. CENTRAL ELECTRICITY GENERATING BOARD. 30 Aug., 1967 [2 Sept., 1966], No. 39390/66. Heading H1A. A compressed-gas insulated cable comprises a stranded inner conductor 10 surrounded by and electrically connected to a corrugated metal tube 11, an outer conducting sheath 13 and dielectric spacers 12 which may be directly secured to tube 11 or to a metal electrode 14 in contact with the tube and which have outer electrodes 15 connected to the outer sheath. The spacers which may have metallized inner cylindrical surfaces may be of ceramic material, or may be cast or moulded in situ from synthetic resin, e.g. epoxy filled with glass or silica, or a thermoplastic such as polysulphone. The electrode 15 may be a ring shrunk or soldered in position; the inner surface of electrode 14 may be soldered or brazed to the tube 11 and both electrodes may be of aluminium. The spacers may have apertures to allow the gas, e.g. SF 6  to flow and a low friction material (21) (Figs. 3 and 4, not shown) such as conductive nylon or P.T.F.E., may be inset in part of the outer surface of electrode 15. The conductor 10 may be Cu or Al, the tube 11 may be Al or brass and the sheath 13 may be stainless steel with a plastics cover 16.
Patent GB-1293474-A (GB)
Title: Device for turning inside out tubular fabric members
Inventor: HOFFMANN TIVADAR
IPC: D06H3/16
Filed: 1970-08-18
Abstract: 1293474 Turning inside out U KLINGEL [trading as ULRICH KLINGEL MASCHINEN UND APPARATEBAU] 18 Aug 1970 39640/70 Heading D1X An everting device for socks and stockings comprises inner and outer spaced tubes 1, 3, the head end of the tube 3 extending beyond the inner and being provided with a nozzle 2, means 12, being provided to apply suction to the inter-tube space to draw over the inner tube an article 6 supplied to the nozzle with its open end leading and means for reversing the direction of air flow (Fig. 2, not shown) to draw the article through the inner tube 1 and thus turn it inside out. Nozzles 8 for assisting progress of the material over and off the inner tube are provided. The flow reversing means comprises change over valves 10, 11, 13 which may be controlled by light sensitive detectors (L, Fig. 2, not shown). The nozzle is adjustably mounted on its tube 2. A receptor for the everted article is provided at 14. In a modification (Figs. 5 and 6 not shown) the tube 3 is of box like formation and a reversible article conveyor (26) is provided adjacent the outer walls of tube 1 to provide the means for assisting the material over and off the tube 3. The device may be associated with an article seaming device such as a sewing machine (24, Fig. 4, not shown) and a conveyor (15) having clamps (16) operated by detents (21, 22) to convey seamed articles from the device (24) to a hopper (17) for the everting device.
Patent GB-1383353-A (GB)
Title: Pipes
IPC: F16L9/18
Filed: 1972-08-25
Abstract: 1383353 Corrugated pipe FELTEN & GUILLEAUME KABELWERKE AG 25 Aug 1972 [17 March 1972] 39760/72 Heading F2P A pipe for the simultaneous transport of at least two fluids comprises a circularly corrugated outer pipe 2 and at least one circularly corrugated inner pipe 3 running therein in which the corrugation widths are multiples of the distances between the corrugations or the distance between the corrugations are multiples of the corrugation widths. The outer pipe may have a heat insulative covering 9, e.g. of a foamed plastics material together with a protective jacket 10 and the inner pipe may be radially secured in relation to the outer pipe by flow promoting spacers 4. The insulating layer can have cavities which run longitudinally of the pipe and distributed around the periphery of the pipe such cavities being defined between dividing walls which taper radially inwards (Fig. 3, not shown). In a further embodiment (Fig. 4, not shown) the inner pipe is in the form of a cluster of pipes. The inner and outer pipes are preferably of metal and may be coated and/or lined with a corrosion protective material. The foamed insulating layer may be of foamed polyethylene or polyurethane and the outer cover can be of p.v.c.
Patent GB-1484899-A (GB)
Title: Inorganic composition
IPC: C09D1/00
Filed: 1974-09-12
Abstract: 1484899 Coated substrates SUMITOMO CHEMICAL CO Ltd 12 Sept 1974 [14 Sept 1973 (2)] 39848/74 Heading B2E [Also in Division C1] Substrates are coated with compositions comprising (A) a mixture obtained by calcining at a temperature of 300 to 1500C a mixture comprising (i) 100 parts by weight of (a) at least one borate of a metallic element of Groups II to VIII of the Periodic Table, or (b) a mixture of 5-95 wt. % of at least one of boron oxide and boric acid and 95-5 wt. % of at least one of phosphorus pentoxide, phosphoric acid and a metal phosphate and (ii) up to 2000 parts by weight of at least one polyvalent metal oxide, hydroxide, carbonate, phosphate, silicate, sulphate or nitrate; and (B) water-soluble silicate which may be an alkali metal silicate; the composition contains 2-1000 parts by weight of A per 100 parts by weight (in terms of solids content) of B; component (ii) is not a phosphate when (b) is a metal phosphate. The composition may also contain pigments, fillers, and auxiliary agents such as silica and alumina sols and gels which enhance the low-temperature setting properties of the composition. Suitable substrates are wood, calcium silicate board, slate, gypsum board, cured foam concrete, porcelain, paving materials and metal sheets (e.g. aluminium, iron, stainless steel).
Patent GB-1427124-A (GB)
Title: Process for the production of ammonium fluoride from fluosilicic acid
IPC: C01C1/16
Filed: 1974-09-16
Abstract: 1427124 NH 4 F 1  BAYER AG 16 Sept 1974 [21 Sept 1973] 40174/74 Heading C1A Aqueous ammonium fluoride solutions are prepared by reacting ammonia with aqueous fluosilicic acid at 49-90‹ C., to form a suspension which contains at least 1% by weight of free ammonia and at most 22% by weight of ammonium fluoride together with a precipitate of silicon dioxide which is subsequently removed, the average resilience time of the reaction mixture in the precipitation zone being at least 4 minutes. The product may be a coarse grained precipitate of SiO 2  which has desirable filtration properties. Aqueous ammonia solutions, or NH 3 /H 2 O vapour mixtures, or gaseous NH 3  may be used. The SiO 2  produced may be separated off from the suspension without prior cooling, the residual SiO 2  then precipitating on standing for at least 30 mins., optionally with the addition of flocculants.
Patent GB-925437-A (GB)
Title: Hydraulic control system with pressure control valve
Inventor: BENNER PAUL BARTH
IPC: E02F9/22
Filed: 1961-11-09
Abstract: 925,437. Earth - excavating equipment. CATERPILLAR TRACTOR CO. Nov. 9, 1961, No. 40205/61. Class 68 (1). [Also in Groups XXIV and XXIX] An hydraulic control system for actuating a fluid motor 30, 31 operating a forward and reverse mechanism comprises a source 38 of fluid under high pressure, a control valve 33, a circuit 39 for directing fluid to the motor, a relief valve 50 biased to a closed position by spring means 50a for maintaining a low pressure in the circuit except upon actuation of the control valve, pressure actuated means communicating with the source to overcome the spring means and open the valve, and means operable upon actuation of the valve to vent the pressure-actuated means and permit closing of the relief valve by the spring means. The forward and reverse mechanism consists of a pair of bevel gears 12, 13 rotatably mounted on a shaft 11 and permanently engaging a bevel gear 14 on a driven shaft 15. The shaft 15 may be driven from the engine of a tractor or road grader and the shaft 11 effect the raising and lowering of an earth moving blade. One or other of the bevel gears 12, 13 may be clutched to the shaft 11 by axial movement of clutches 20, 21 engaging one or other of complementary clutches 18, 19 on the bevel gears. The clutches are moved by fluid pressure supplied to one end or the other of the motor 30, 31 upon movement of the spool 34 of the control valve from a central position, to which it is biased by a device 35, to connect circuit 39 to one or other end of the motor. With the spool 34 in its central position, fluid pressure from the pump passes through a port 53 in the spool 50 of the low pressure relief valve to act in a chamber and move the spool against the spring 50a to connect the supply from the pump to a return line 49. When the spool 34 is moved in either direction to operate the motor, the chamber is connected by a line 56 to an exhaust passage in the valve 33 to permit the spring 50a to return spool 50 and close the exhaust line 49, the pressure supplied to the motor then being limited by a high pressure relief valve 51. The spool of the relief valve 51 has a port 54 which permits the pressure in the circuit to act in a bore in the spool slidable on a pin 58. A further relief valve 62 prevents excessively high pressure occurring in the system. The relief valve assembly 44 may be connected to a common inlet manifold for a plurality of control valves and motors. Specification 862,716 is referred to.
Patent GB-941871-A (GB)
Title: Process for the manufacture of polymers containing epoxy groups
IPC: C07D303/24
Filed: 1959-11-26
Abstract: Epoxide group-containing polymerisation products of epihalogenhydrins are made by heating an epihalogenhydrin of the formula: <FORM:0941871/C2/1> in which R1 and R2 each represent a hydrogen atom or an alkyl or aryl group, and X represents a halogen atom, with a catalyst comprising magnesium chloride, magnesium oxide, a carbonate, basic carbonate or silicate of zinc or magnesium or a mixture of any two or more of these compounds in the absence of a compound capable of donating hydroxyl groups.  The polymerisation may be effected at a temperature within the range of 100 DEG C.-200 DEG C.  The process may be carried out in a continuous manner. In examples, epichlorohydrin is polymerized by heating with (1) basic magnesium carbonate, (2) zinc carbonate, (3) magnesium silicate and (4) magnesium chloride and after distillation trimeric epichlorohydrin and higher polymers are obtained.
Patent GB-1040766-A (GB)
Title: Improvements in methods of extrusion and wiredrawing of metallic products and devices for the practical application of said improved methods
Inventor: TERRAS YVES
IPC: B21F9/00
Filed: 1963-10-16
Abstract: 1,040,766. Extruding wire; stretching. COMPTOIR LYON-ALEMAND, LOUYOT & CIE. Oct. 16, 1963 [Oct. 26, 1962], No. 40889/63. Headings B3E and B3P. A method of producing metallic wire in which further reduction of the diameter of an initial wire, produced by extrusion, is effected by applying tension to the heated wire to produce a controlled elongation and consequent reduction in diameter without the use of drawing dies. The elongation is produced by subjecting the wire to tension, by positioning a winding drum 4 at a distance from the extrusion die 2, and displaced through an angle α relative to the die axis. In an example the distance " D " is 10 metres, the angle α is 20 degrees and wire of 2À7 mm. diameter was produced using an extrusion die 3.0 mm. diameter. The tension in the wire can be increased by a loaded pulley acting near the mid-point of the wire, Fig. 3 (not shown). Alternatively the wire can be passed around a capstan driven by a constant torque device which produces the required tension in the wire, the wire then passing without tension on to a winding drum, Fig. 4 (not shown). In a further embodiment the wire leaves the extruding die and immediately passes round a capstan and is then pulled off the capstan by the winding drum, Fig. 5 (not shown), the required tension being developed in the run of cable between the capstan and the winding drum. In a further embodiment, Fig. 6 (not shown), the wire leaves the extruding die 2 at a velocity V1 and is taken-up by a drum rotating at a greater speed V2. The speed of the drum is controlled automatically to maintain the desired finished wire diameter. Fig. 8 (not shown) illustrates an installation in which a wire passes over a series of capstans V15, V16, V17 rotating at increasing speeds so that the wire elongates between each adjacent pair of capstans. There are heating means 18, 19 between the capstans and the wire is finally wound on a horizontal drum 20 or a vertical drum 21.
Patent GB-1190364-A (GB)
Title: Gas Turbine Engines
Inventor: DAVIES STUART DUNCAN
IPC: F01D7/00
Filed: 1966-04-12
Abstract: 1,190,364. Reversing propulsive jets. DOWTY ROTOL Ltd. 11 April, 1967 [12 April, 1966; 25 May, 1966(2); 16 Sept., 1966], Nos. 41454/66; 16223/67; 15968/67 and 15969/67. Heading B7G. [Also in Divisions F1 and F2] In a gas turbine ducted fan engine (see Division F1) the pitch of the fan blades may be adjusted from positive to negative so that the fan air which normally flows rearwardly through the duct now flows forwardly thus exerting a braking effect on an aircraft in which the engine is mounted.
Patent GB-1190089-A (GB)
Title: Olefin Producing Process
Inventor: RAYMOND ROBERT FRANCIS
IPC: C10G69/06
Filed: 1967-09-12
Abstract: 1,190,089. Olefins. UNIVERSAL OIL PRODUCTS CO. 12 Sept., 1967 [16 Sept., 1966], No. 41576/67. Heading C5E. Olefins are produced from a hydrocarbon charge stock containing aromatic hydrocarbons by a process comprising the following steps: (a) treating said charge stock in a hydrogenation zone with a hydrogen-rich gas in the presence of a metallic hydrogenation catalyst, e.g. a metal of Group VIB or VIII of the Mendeleef Periodic Table on a conventional support, under conditions such that at least part of the aromatics are saturated (and any di-olefins present are also hydrogenated, and sulphurous and nitrogenous compounds are destructively removed); (b) separating from the hydrogenation effluent a gaseous phase containing hydrogen and a liquid phase containing hydrocarbons; (c) recycling at least part of said gaseous phase to said hydrogenation zone; (d) subjecting the liquid phase from (b) to thermal cracking in a pyrolysis zone to produce olefins; (e) removing from the pyrolysis zone effluent a hydrocarbon fraction substantially free of hydrocarbons higher than C 6 ; (f) separating from said fraction a hydrogen-containing gas and recycling at least part of it to the hydrogenation zone and (g) recovering olefins from the remainder of said fraction. The liquid C 7+  by-product of the pyrolysis (i.e. pyrolysis gasoline) is recycled to the chargestock to the hydrogenation zone, and paraffinic gases obtained from the (e) fraction may be recycled to the pyrolysis zone. More than one hydrogenation zone may be used in series, part of the recycled pyrolysis gasoline being fed to each zone. In an example, the charge stock is a mixture of naphtha, kerosene and recycled pyrolysis gasoline, and ethylene, propylene and C 4 -olefins are recovered as products.
Patent GB-1066288-A (GB)
Title: Elastomeric urethane sealant compositions
IPC: C08G18/48
Filed: 1964-10-13
Abstract: A non-porous elastomeric polyurethane composition is prepared by reacting a polyoxyalkylenediol of M.W. 2,000-10,000 with an organic diisocyanate and an organic isocyanate or hydroxyl-containing polyether having a functionality greater than 2, such that the combined mol. functionality of the reaction mixture is from 2.01 to 2.25, in the presence of a catalytic amount of an organometallic catalyst effective for substantially completely promoting the isocyanate-hydroxy chain reaction, said reaction mixture containing a filler. The catalyst may be dibutyltin dilaurate, dibutyltin diethylhexoate, tetraethyltin, tetramethyltin, tetrapropyltin, lead octoate or lead naphthenate. The filler may be:  CaCo3, clay, carbon black, talc, SiO2, asbestos, BaSO4, wood flour asphalt or coal tar. The polyisocyanate may have the formula <FORM:1066288/C3/1>ALSO:Metal, wood and paper substrates are painted with a fluid reaction mixture comprising: polyoxypropylene glycol, calcium carbonate, dibutyl-p-cresol dibutyltin dilaurate, toluene and polyphenylmethane polyisocyante, and allowed to harden to form a smooth flexible polyurethane coating.
Patent GB-974266-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B23/06
Filed: 1963-10-23
Abstract: 974,266. Combustion chambers of fuelinjection engines. DAIMLER-BENZ A.G. Oct. 23, 1963 [Nov. 7, 1962], No. 41899/63. Heading FIB. The fuel jets are directed against sheet-metal plates 7 situated in front of the wall of a combustion chamber 1 formed in the piston. The plates 7 are carried by a ring 8 cast-in with the metal of the piston, the ring having tabs 9 or perforations in the part within the piston.
Patent GB-877262-A (GB)
Title: Web movement checking device
IPC: G06K13/24
Filed: 1958-12-29
Abstract: 877,262. Feeding webs. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 29, 1958 [Dec. 30, 1957], No. 41904/58. Class 100(1) A device for testing intermittent movement of a web includes a member which is engageable with the web so that it is moved from a first to a second position upon movement of the web, the member' being disengaged from the web at the second position and returned to re-engage the web at the second position. A paper tape 1 which is to be punched is unwound from a supply reel 2. The tape is guided by a guide 4 past a tape run-out contact 5 towards a roller 6. The tape then passes over a table 9 under guides 10, 11 to a tape guide 12 and a punch die 13 co-operating with punches 15 to punch code holes in the tape. A pin wheel 16 draws the tape intermittently through the punch, the tape being rewound, after passage around tension guide studs 20, 21 on a reel 3. The pin wheel and punch mechanism may be driven by a clutch as described in Specification 737,751 which permits one cycle of operation each time its associated clutch magnet is energized. A shoe 22 freely mounted on a pivot stud 23 has a lining of friction material which rests on the tape. The friction material, e.g. glass or nylon, is such that as the tape 2 moves to the left the shoe is rocked upwardly to open contacts 29 on contact strips 27, 28. The stud 23 is secured to an armature 37 pivotally mounted beneath an electromagnet 41 which when energized attracts armature 37, such that it swings upwardly about its pivot against the action of a spring 43. The armature thus lifts the shoe 22 off the tape to permit contact strip 27 to rock the shoe counter clockwise against a stop 45. In a modification (Fig. 3, not shown) the armature is rocked upwardly by a cam and lever mechanism, the shaft carrying the cam being the shaft driving the punches 15 and pin wheel 16. In either case, should the tape not be fed, thereby causing the shoe 22, Fig. 1, to remain in position against the stop 45 the contacts 29, forming part of a tape movement contact 26, are not opened as in the case of normal tape feeding. In these circumstances, a stop relay R3 (Fig. 4, not shown) and an error light, 55, forming part of an error detection circuit are both energized. The stop relay prevents energization of the clutch magnet of the clutch driving the punch mechanism, thereby causing the machine to stop at the end of the cycle in which the tape failure occurs. Similarly, should the contacts 29 not be closed at the proper time; due, e.g., to the tape being jammed under the shoe the stop relay and error light are both. energized.