baber/WOPTO huggingface dataset:
Patent GB-1309459-A (GB)
Title: Electrical limit switch
IPC: H01H13/36
Filed: 1970-07-29
Abstract: 1309459 Electric switches ARROW-HART Inc 29 July 1970 [30 July 1969] 36681/70 Heading H1N An electric limit switch has contacts 52, 54 movable by means of abutting plungers 40, 48 which are linearly slidable within housing 39, the plungers having respective movable seals 42 and 50. The plunger 48 is biased upwards by spring 70 such that contacts 52, 54 bridge contacts 84, 86. Rotation of the rocker arm 28 causes the larger surface of the cam 24, mounted on shaft 14 to push plunger 40 downwards, with the contacts 52, 54 snapping into their second bridging position across contacts 56, 58. The shaft 14 also carries a pinion 20 which engages with an axially slidable spring biased rack 18, which is claimed in Specification 1,309,460. Springs 34, 36, Fig. 2A, engage a partition 19 within the rack 18, so as to position it centrally. When the rack is moved, in operation, a pin 16 engages and holds one of the springs while the other is compressed by the partition in the rack. The switch can be operated either by clockwise rotation of the shaft 14, Fig. 2A, or be converted for counterclockwise rotation, Fig. 4 (not shown). In Figs. 6 to 10 (not shown) the upper part of the housing is replaced by alternative plunger operating arrangements and include operation by vertical and horizontal displacement and a detent latching arrangement.
Patent GB-1441309-A (GB)
Title: Core breaking apparatus
IPC: E21C35/18
Filed: 1973-08-02
Abstract: 1441309 Mineral mining picks CINCINNATI MINE MACHINERY CO 2 Aug 1973 [11 Aug 1972] 36754/73 Heading E1F Apparatus for use in a mining machine comprises mounting means 16 having a perforation 23 for receiving a shank 28 of a cutter bit 26 and having mounted thereon means 41 comprising a body 42 having at least one tip 49, located to at least one side of the cutter bit when mounted, for breaking cores of material left between the paths of travel of adjacent bits. The core-breaking means 41 is received in a complementary recess 38, Fig. 7, or (67), (82), Figs. 17, 18 (not shown) in the mounting means and retained in place by abutting shoulders on he cutter bit 26, which is itself retained by a rod 35 encased in a body 36 of resilient material, or of split rings (135), (136). Alternatively the core-breaking means may not abut the cutter bit, being retained in a complementary recess in the mounting means by for example a resilient rod (63), Figs. 9, 10, 28 (not shown) compressed in a transverse bore in the corebreaking means and frictionally engaging the walls of the recess, by a pin (149), Fig. 30 (not shown) engaging in bores in the mounting and the core-breaking means, or by a resilient retainer (194), Fig. 36 (not shown) similar to the retainer 36. Or the core-breaking means and the cutter bit may be formed as an integral unit, Figs. 26, 27 (not shown). Or the core-breaking means may be separate elements 96, Fig. 22 with conical cutting heads, and shanks which are received in perforations 93, 94 in mounting means 90, located to either side of the perforations 23 for the cutter bit, and retained either by friction or by a pin (110), Fig. 24 (not shown).
Patent GB-941228-A (GB)
Title: Wide strip rolling mill
IPC: B21B39/34
Filed: 1962-09-28
Abstract: 941,228. Rolling. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. Sept. 28, 1962 [Oct. 14, 1961], No. 36816/62. Heading B3M. Between the roughing and finishing stands of a wide strip mill is provided a transversely movable carriage, such that in the event of one of the finishing stands of the mill breaking down, a stacking table can be shifted into the rolling path to replace a roller bed normally used. The roller bed 7 shown in Figs. 1 and 4 and having individually driven rollers 10 is shifted in guides 6 by a driving cylinder 9 out of the rolling path, the attached stacking table 8 thereby taking its place. Feed rollers 3a and 3b are moved together to feed strip cut by shears 1 on to the table. The table 8 is inclined downwardly so that sheared lengths of strip slide over blocks 16 having curved faces to abut a projection 14. The table 8 may be adjustable for height. An arrangement of racks 23 and pinions 22 gives the connected carriages 7 and 8 twice the movement of the piston 20 of the cylinder 9.
Patent GB-1158567-A (GB)
Title: Pressure Die-Casting Machine
IPC: B22D17/30
Filed: 1966-08-18
Abstract: 1,158,567. Die-casting machines. GEBRUDER BUHLER. 18 Aug., 1966 [25 Aug., 1965], No. 37072/66. Heading B3F. In a pressure die-casting machine molten metal is fed to the injection cylinder 6 by a plunger 20 operating in a pump body 5, said plunger 20 having a sheath 202 freely embracing a metallic core 201, the sheath 202 being made of a material, e.g. graphite, which is resistant to the formation of contamination, e.g. oxide films and the like. The pump body 5 may be made of ceramic material. The sheath 202 is held on the metallic core 201 by a resilient thermal stress relieving sleeve 204. The plunger 20 is operated hydraulically by a ram 52 between stops 35, 36, the ram and stops being pivotable about frame column 301 to gain access to the plunger.
Patent GB-927832-A (GB)
Title: Production of modified polyolefines and process
Inventor: ILLING HANS CRAUBNER GERHARD
IPC: C08L25/06
Filed: 1961-10-17
Abstract: Cured and cross-linked polyolefines are produced by intensely kneading at 60 DEG -350 DEG C. at least one polyolefine and up to 50% of at least one ethylenically unsaturated polyester together with at least one free radical forming catalyst.  Up to 50% of the polyester may be replaced by at least one ethylenically unsaturated monomer having a 1.p. above 60 DEG C.  The polyolefines are prepared by high or low pressure polymerization of C2-4 olefines, e.g. ethylene, propylene, butylene-1, butylene-2 or iso-butylene.  The polyesters are prepared from polyols with a ,b -unsaturated polybasic carboxylic acids and have a molecular weight above 500, e.g. up to 6000.  The acids may be maleic, fumaric, dichloromaleic, itaconic, citraconic and mesaconic. The polyesters may be prepared using polybasic saturated organic carboxylic acids with C4-17, e.g. dicarboxylic such as adipic, phthalic, isophthalic, endomethylenehexachlorotetrahydrophthalic, succinic, glutaric, heptadecane-dicarboxylic, terephthalic, tetrachlorophthalic, tetrabromophthalic or pyromellitic.  The The polyols may contain 2-6 OH groups, e.g. ethylene- or di- or tri-ethylene glycol, propylene glycol, butanediol-1,4 and -1,3;neopentyl glycol, endomethylenehexachlorodihydrolmet hyxycyclohexane; 2,2-bis-[p-(b -hydroxyethoxy)-phenyl]-propane; glycerol, pentaerythritol, tetramethylolcyclohexanol, sorbitol, mannitol and 2-butyne-1,4-diol. Up to 10 mole per cent acid or polybl excess may be used in the production of the polyesters, and up to 10 mole per cent of the polybasic acid may be replaced by a monocarboxylic acid; some of the polyols may be replaced by monohydric alcohols.  The polyesters may contain some isocyanate. The ethylenically unsaturated monomers may be monovinylaromatic, e.g. styrene and alkyl substituted styrenes and vinyl toluenes; a ,b -unsaturated mono- and di-carboxylic acids and their ester,, amides, anhydrides and nitriles; vinyl esters and ethers; and heterocyclic compounds, e.g. vinyl pyrrolidone or carbazole.  The catalyst, e.g. 0,05-10%, may be organic compounds which form radicals at 60 DEG -350 DEG C., e.g. peroxides, peroxy-esters, a perbenzoate, hydroperoxides and nitriles.  Kneading may be carried out with calenders, kneading machines and refiners, screw extruders and disc kneaders.  The components may first be premixed, e.g. in a propeller mixer, or fed directly to the kneaders and the process may be batch or continuous.  Additives, e.g. pigments, fillers, dyes, stabilizers and hardening accelerators may be used.  The product may be processed, e.g. by injection moulding or deep-drawing and formed into, e.g. films, sheets, articles or cable covering.
Patent GB-1189869-A (GB)
Title: Indole Derivatives
Inventor: CHEMERDA JOHN MARTIN
IPC: C07D209/28
Filed: 1967-08-16
Abstract: 1,189,869. 3-Indolylacetic acid derivatives. MERCK & CO. Inc. 16 Aug., 1967 [23 Aug., 1966], No. 37632/67. Headings C2C and C2J. 3-Indolylacetic acid derivatives of the general formula wherein R is a methoxy or dimethylamino group, are prepared by treatment of a 3- indolylacetic acid metal derivative of the general formula wherein X is MY or M<SP>1</SP>, Y is chloro, bromo or iodo, M is magnesium or zinc and M<SP>1</SP> is an alkali metal, or a magnesium, zinc or alkali metal salt thereof, with a hydrolysing reagent. Novel 3-indolylacetic acid metal derivatives of the second general formula above are prepared by treatment of a 2-halomethyl derivative of the general formula with magnesium, zinc, sodium, potassium or lithium. 2-halomethyl derivatives of the third general formula above are prepared by treatment of the corresponding 2-tosyloxymethyl derivative with lithium chloride, bromide or iodide.
Patent GB-1353231-A (GB)
Title: Carburation system for multicylinder internal combustion engines
IPC: F02M17/09
Filed: 1971-08-11
Abstract: 1353231 Spray carburetters, heating charge, charging engine B LAPRADE X LAPRADE and P GELE 11 Aug 1971 [11 Sept 1970] 37641/71 Heading F1B A multi-cylinder carburation system comprises a fuel metering system controlled by an auxiliary throttle member 4, Fig. 1 in an air inlet to a chamber 25, a main throttle 2 downstream of the auxiliary throttle, an air intake pipe 18 extending from each cylinder valve to the chamber, a fuel pipe 26 introducing metered fuel into the intake pipe near the valve, the discharge end of the fuel pipe being located at a point at which the pressure is substantially the same as the pressure existing between the main and auxiliary throttles. Air is inducted through passage 3a, controlled by an auxiliary throttle 4, through chamber 25 and passages 19, 18, controlled by main throttles 2, to cylinders 16. The auxiliary throttle 4, which may be replaced by a suction operated piston valve, controls a fuel metering needle 5a. Fuel flows through jet 7 into emulsifying chamber 1d, orifices 9 and pipes 13 to apertures 26a in passages 28. The orifice 26a is thereby subjected to the pressure operative between the main throttles 2 and the auxiliary throttles 4. Passages 28 may have valves or may be omitted when unions 26 terminate immediately upstream of main throttles 2 or in an auxiliary Venturi tube. Length L is chosen so that pulsations in the induction stream assist charging. In another embodiment the individual main throttles are replaced by a small main throttle 2' Fig.2 in an inlet passage 3'a having an auxiliary throttle 4. A larger inlet passage 3a has a suction operated main throttle 2" and may have an auxiliary throttle. The emulsified fuel and air passages 13 debouch into passages 28' which are connected through valve members 30 to the chamber between main throttle 2'a and auxiliary throttle 4. The air entering passage 33 may be heated by the engine exhaust or cooling water. Pipes 13 and passages 28, 28' may have closure devices operated by the pressure upstream of the main throttle or by the main throttle.
Patent GB-1436587-A (GB)
Title: Method of forming an article having hook-ended spikes
IPC: B29C48/32
Filed: 1973-08-08
Abstract: 1436587 Hair curlers A STOHR 8 Aug 1973 [11 Aug 1972] 37674/73 Heading A4V [Also in Divisions B5 and E2] An article having hook ended spikes e.g. a flat burdock ribbon for dress fastening or, as described, a tubular hair curler, is made by extruding a section having longitudinally extending ribs of the general cross-section of the spikes, and cutting transversely of the ribs to form the hook ended spikes whilst stretching the section to space the spikes apart. A hair curler is made by extruding from an orifice of the shape 2, 3, 4, 5, Fig. 1 and stretching the section from the die as a revolving knife 9 cuts along a helical path into the ribs 3'to form the hook ended spikes 6, whilst leaving uncut remnants 3' of the ribs. Within the extruding section, a further knife 10 revolves to cut internally through the wall 2' of the section along a helical path, to form an internal rib 12 which defines, with the rib remnants 3', openings 11 of a perforate structure.
Patent GB-1271905-A (GB)
Title: Hydrotreating catalyst and process
Inventor: WHITE ROBERT JAMES
IPC: B01J29/16
Filed: 1970-08-04
Abstract: 1,271,905. Zeolite containing catalyst. CHEVRON RESEARCH CO. 4 Aug., 1970 [5 Aug., 1969], No. 37681/70. Addition to 1,257,694. Heading B1E. [Also in Division C5] A catalyst composition comprises A) a gel matrix comprising (a) less than 15 wt.% of silica, (b) alumina in an amount sufficient to provide an alumina-silica ratio of from 50/50 to 100/0, (c) nickel and/or cobalt as the metal, oxide, sulphide or mixture thereof, in an amount, calculated as metal of from 1 to 10 wt.% based on the matrix, (d) 5 to 30 wt.% of molybdenum or tungsten, based as above, in the form of the metal oxide, sulphide or any mixture thereof; and B) a crystalline zeolitic molecular sieve substantially in the ammonia or hydrogen form and free of any catalytic loading metal or metals, in particulate form dispersed in the matrix in an amount of 30 to 70% wt. of the total catalyst. The catalyst has an average pore diameter below 100 A, a surface area above 200 sq. m./gm. and preferably a bulk density of 0.35 to 0.7 g/cc. Zeolites specified are 'X' and 'Y' type faujasite and mordenite. The catalyst may be sulphided before use.
Patent GB-1328884-A (GB)
Title: Bearings and bearing compositions
IPC: F16C11/06
Filed: 1970-08-07
Abstract: 1328884 Lubricating compositions MINNESOTA MINING & MFG CO 7 Aug 1970 [8 Aug 1969 22 Dec 1969] 38254/70 Headings C3B and C3P [Also in Divisions E2 and F2] A composition comprises (I) an epoxy resin having > 2 epoxy groups per molecule, e.g. an epoxy novolac resin, (II) SH-terminated butadiene acrylonitrile polymer and (III) a polysulphide hardener. Prior to hardening the composition has a viscosity 200-500 by ASTM D217-65T cone penetration test and after hardening is capable of withstanding static and dynamic loads of 250-500 p.s.i. The composition may contain conventional lubricants, e.g. graphite, MoS 2  polytetrafluoroethylene and lithium grease. Uses. - Repairing worn ball - joints and journal bearings.
Patent GB-1472028-A (GB)
Title: Process for the manufacture of electrodes for electrolytic purposes and electrodes so manufactured
IPC: H01M4/16
Filed: 1975-09-18
Abstract: 1472028 Electrolytically depositing PbO 2  on Ti RHEINISCH-WESTFALISCHES ELEKTRIZITATSWERK AG 18 Sept 1975 [18 Sept 1974] 38334/75 Heading C7B An electrode for lead-accumulators or electrochemical syntheses comprising a base layer of Ti bearing a PbO 2  electro-deposit is made by cleaning the Ti followed by deposition of an absorptionally bonded Ti (IV) layer before PbO 2  deposition. The Ti, (IV), layer may be produced by (1) treatment with a Ti, (IV), salt solution e.g. of Ti and EDTA, (2) anodizing the Ti in the same bath used for cleaning it e.g. oxalic acid, (3) allowing the Ti to stand in the bath used for cleaning it, e.g. oxalic acid, in the presence of air, oxygen or an oxidizing agent e.g. H 2 O 2 , or (4) by adding Ti, (IV), to the PbO 2  deposition bath and allowing the Ti to stand therein before anodic deposition. The PbO 2  bath may contain either a Pb II salt of nitric or of an amido-, imido, nitrido-, or fluorophosphoric or sulphuric acid, or a mixture of a Pb II salt with such acid.
Patent GB-383631-A (GB)
Abstract: 383,631. Removing superfluous hair. FIEDLER, H. W., 11, Johannis-Allee, Leipsic, Germany. May 14, 1931, No. 14315. Convention date, May 21, 1930. [Class 131.] A preparation for protecting the skin from injury by depilatories is obtained by emulsifying a solution made by heating finely ground wood fibre with water and soda lye. According to an example, 10 parts of finely ground wood fibre are mixed with 300 parts of water and 36 parts of a solution of sodium hydroxide are added. The mixture is heated under pressure for several hours at a temperature of about 200‹ C. and the solution thus obtained filtered through charcoal. The clear filtrate is dialysed till alkaline reaction is eliminated and is then thickened by evaporating to the consistency of syrup. This substance is emulsified with an oily medium, e.g. Turkey red oil, or a mixture containing this oil and other substances.
Patent GB-997577-A (GB)
Title: Improvements in or relating to charge storage tubes
Inventor: MANLEY BRIAN WILLIAM
IPC: H01J29/39
Filed: 1962-10-10
Abstract: 997,577. Cathode-ray storage tubes. MULLARD Ltd. June 25, 1963 [Oct. 10, 1962], No. 38380/62. Heading H1D. A direct-viewing charge-storage tube comprises a storage grid constituted by a metal plate having apertures which are lined with cathode-conductive dielectric storage material in such manner that the conductive matrix is at least partly exposed on both sides of the grid while the dielectric is subdivided into separate apertured elements exposed at least on the gun side of the grid. As shown, the dielectric elements 28, Fig. 6, are exposed on both sides, arsenic trisulphide being applied by evaporation to an apertured nickel plate 27, and removed from opposite faces of plate 27 by abrasion. Specific dimensions of the storage grid 20 and of ion repeller grid 23, Fig. 1, are given. The two grids 20, 23 are assembled together and supported from envelope inserts 26 of metal. The tube may be operated in a bi-stable mode with the storage elements 28 initially stabilized at ground potential by slow electrons from flood gun 13-15, and with the conductive matrics 27 at +100V, writing being effected with a high-energy beam from gun 5-9. Reading with slow flood electrons causes storage elements positively charged above the first cross-over potential to be stabilized at the potential of plate 27, the remaining elements being stabilized at ground potential. Erasure is effected by momentarily lowering the potential of plate 27. Alternatively, for half-tone display, the storage elements are initially made negative relative to flood gun cathode 13. In an alternative arrangement, a single gun is used for both writing and reading, Fig. 4 (not shown), reading being effected by scanning with a defocused beam. Specific operating potentials are given. Specification 954,098 is referred to.
Patent GB-833878-A (GB)
Title: Improvements in and relating to a process of producing fused iron oxide catalysts
IPC: B01J23/745
Filed: 1958-11-28
Abstract: A fused, substantially uniform iron oxide catalyst is produced by fusing magnetite, and/or iron oxide obtained by melting iron in oxygen, in an electric induction furnace in the presence of one or more iron oxide catalyst promoters, MgO being specified.  The furnace is preferably lined with a basic refractory such as magnesite which may also function as the promoter.
Patent GB-950476-A (GB)
Title: Improvements in and relating to the preparation of alcohols
Inventor: JUBB ANTHONY HOWDEN
IPC: C07C29/124
Filed: 1960-11-09
Abstract: Allylic halides containing not more than eight carbon atoms are hydrolysed to primary allylic alcohols by an alkaline medium in the presence of an additive comprising copper or a copper compound. Some secondary allylic alcohols are also formed.  The additive is preferably used in the form of finely divided solid in an amount of 0.01-5% by weight of the allylic halide, copper metal being preferred.  The hydrolysis is preferably carried out in the liquid phase at temperatures of 50-200 DEG C. and at atmospheric pressure. Preferred hydrolysing agents are 1-10% by weight aqueous solutions of alkali metal hydroxides, particularly sodium hydroxide.  A small amount, for example 5% by weight of the reaction mixture of a surface-active agent may be added.  Preferred allylic halides are branched chain chlorides obtained by monochlorinating dimers, including codimers, of propylene and butylene, especially isobutene dimer.  Octanols may be obtained by reduction of the primary C8 alcohols obtained by the process of the invention from monochlorinated isobutene dimer. Examples describe the hydrolysis of the individual or mixed allylic chloride obtained by chlorinating di-isobutene.  Some secondary alcohols are obtained as by-product. Comparative examples are given in which no copper additive is present.
Patent GB-964233-A (GB)
Title: Derivatives of 5-nitro-2-furylnitrile
IPC: C07D307/72
Filed: 1962-10-11
Abstract: The invention comprises compounds of the formula: <FORM:0964233/C1/1> wherein R is an alkoxy group of 1 to 4 carbon atoms or amino. The compounds wherein R is alkoxy are prepared by reacting equimolar amounts of 5-nitro-2-furylnitrile and an alkyl alcohol containing from 1 to 4 carbon atoms in an inert solvent, e.g. anhydrous diethyl ether, which is saturated with HCl, suspending the intermediate thus formed in liquid ammonia and thereafter evaporating the ammonia. On further reaction of these compounds with ammonium chloride in an inert solvent, e.g. methanol, at the reflux temperature, the hydrochloride of the compound wherein R is amino, i.e. 5-nitro-2-furylamidine, is formed.  5-Nitro-2-furylnitrile may be prepared by heating equimolar amounts of 5-nitro-2-furylamide and phosphorus oxychloride at 100 DEG C. until the evolution of hydrogen chloride ceases.ALSO:Disinfectant compositions having antibacterial action comprise 5-nitro-2-furylamidine, or an acid addition salt thereof, dispersed on an inert solid or dispersed in water.  The compositions may be employed as a dust or as a spray.
Patent GB-1480097-A (GB)
Title: Signal control circuits
IPC: H03K17/687
Filed: 1974-09-04
Abstract: 1480097 Fading circuits; FET gates SONY CORP 4 Sept 1974 [7 Sept 1973] 38723/74 Headings H4J H3T and H4R In a fade in, fade out, or fade over gain control circuit a charge storage junction fet is used as the gain controlling element, the gate of which has an integral PN junction, see Division H1, which provides that, when the gate control voltage is changed in one direction the resulting change in source drain impedance takes place slowly, due to back biasing of the PN junction, i.e. only as fast as charge is injected into the material, e.g. by appropriate biasing of a further junction formed in the semi-conductor substrate, or by irradiation of the material. Two such semi-conductor devices 10A and 10B are connected so that one, 10B, feeds the control voltage to the gate of the other 10A, which has its source drain path in series with the signal. With such an arrangement operation of switch SW to position a applies a bias to device 10B such as to cause its source drain path to go high impedance and remove a negative bias from the gate of device 10A. The PN junction in the gate of device 10A prevents the reduction in impedance of the source drain path, by shrinkage of a depletion layer therein, until positive charges are injected via the emitter connection E1, or by irradiation, so that the source drain impedance falls only slowly to a substantially zero value. When the switch SW is moved to position b removal of the gate bias from device 10B causes a similar slow fall in the source drain impedance of device 10B and consequently a slow application of the negative bias to the gate of device 10A. Since the negative bias forward biases the PN junction in the gate of device 10A the source drain impedance rises at the same rate as the bias on its gate changes. In an alternative embodiment, Fig. 8 (not shown), two similar circuits are connected to a common output amplifier to provide a fade over arrangement. The fading time constant can be changed by changing the bias on the emitters El, E2, or by changing the level of irradiation.