baber/WOPTO huggingface dataset:
Patent GB-727062-A (GB)
Title: Improvements in or relating to the production of sulphuryl fluoride
Inventor: BELF LEON JERZY
IPC: C01B17/46
Filed: 1952-08-29
Abstract: Sulphuryl fluoride is produced by reacting sulphuryl chloride, or a mixture of sulphur dioxide and chlorine, with hydrogen fluoride.  The temperature of reaction may be 350-450 DEG  C. and the pressure 1-100 atmospheres.  The reaction is preferably carried out in the presence of a catalyst, activated charcoal being particularly suitable since this is a catalyst for the interaction of sulphur dioxide and chlorine as well as for the interaction of sulphuryl chloride and hydrogen fluoride.  In an example sulphur dioxide, chlorine and hydrogen fluoride in a 20 per cent. excess by volume were passed over activated charcoal at 400 DEG  C. and atmospheric pressure at a rate of 100 litres/hr. and a contact time of 30 sec.  The product gas was scrubbed with water and then condensed in a series of four traps, the first cooled in ice, the second and third being kept at -20 DEG  C., and the fourth being cooled in a mixture of solid carbon dioxide and alcohol at -78 DEG  C. The crude product was distilled in a Podbielniak-type still.
Patent GB-460854-A (GB)
Title: Improvements in or relating to bituminous compositions incorporating india-rubber
IPC: C08L95/00
Filed: 1935-08-01
Abstract: Common salt is compounded with a preponderating proportion of bituminous material and with indiarubber in liquid form, e.g. in solution or dispersion, together with vulcanizing agents.  The bituminous material may comprise tar, including an appreciable proportion of volatile oils, and a viscous natural or artificial bitumen.  Alkalies and protective colloids may be added, with or without fillers.  The composition may be used for impregnating paper or textiles, joint-making and road-making.
Patent GB-576666-A (GB)
Title: Improvements in or relating to gas-fired water heaters
IPC: F24H9/20
Filed: 1943-12-30
Abstract: 576,666. Gas-fired water heaters. PEET, A. Dec. 30, 1943, Nos. 21834/43 and 13394/44. [Class 64 (i)] [Also in Group XXIX] In a gas-fired geyser in which the gas valve 13, Fig. 2, is self closing and is controlled by a diaphragm or piston 47 subject to the differential pressures at the mouth and throat of a venturi passage in the water conduit, a hollow plug check valve 76, Fig. 3, with a small through bore is situated in the passage between the throat of the venturi and the space on the upper side of the piston to permit slow opening of the gas valve, when the water is turned on, and quick closing when the check valve is unseated due to the water being turned off. Valve 13 is loaded by a spring 15 or by gravity. Piston 47 is subjected on its lower face to the pressure of the water as it flows from the inlet 6 to the heating coil, the water first passing through a filter 54 and then through a governor valve consisting of a throttle 50 attached to 'the piston by a stem passing through an aperture in a disk 52. A reduced pressure is created in the chamber 48 by allowing the water to flow through a venturi 68 and taking off radial connections 72 from the throat of the venturi, past the check valve 76, to the space 48. The venturi is formed in a rotary plug cock 64 provided with grooves 70 which permit the cock to act as a temperature selecter by allowing water to by-pass the venturi and flow direct to the heating coil. A direct connection between the inlet 6 and the outlet 8 allows cold water to by-pass the heating coil, this connection being controlled by a manually actuated valve. Gas enters at 9, passes through a filter 31, past a governor consisting of a light diaphragm 30 with peripheral legs 29 which can contact a flanged aperture in a spring-pressed diaphragm 27, through passage 36 to a plug cock 12, and through an axial bore in the plug cock to a central duct housing the valve 13. A pilot burner 20 is also supplied from the plug cock 12, and the flame from this burner acts on a bimetallic strip 19, the upper part of which engages between collars 23 on the stem of a further valve 18 in the supply pipe to the main burner 7. Should the pilot flame fail, the bi-metallic strip will close the valve 18 and shut off the supply from the valve 13 to the burner. The plug cock 12 also acts as a valve for the main gas supply and it is provided with an operating knob 42 and an indicator 43. The gas supply unit is mounted on, and detachable from, the water supply unit, the actuating stem 46 carried by the piston passing through a packing gland and contacting the stem 38 of the gas valve. The heating pipe 2, Fig. 1, is made in two lengths coiled around a shell 85 fitted with a finned heat exchanger 86. The two lengths of pipe are brazed and held together by a clip 116 and are positioned along with the shell 85 by spring clips 152. In a modification, the piston and gas valve move in the horizontal direction. Specification 576,682 is referred to.
Patent GB-743606-A (GB)
Title: Calcium salts of nitrogen-containing polymers and copolymers
IPC: C08F8/00
Filed: 1953-08-07
Abstract: The calcium salt of a partially hydrolysed homopolymer or copolymer of acrylonitrile or methacrylonitrile, the copolymer containing before hydrolysis at least 75 per cent of polymerized nitrile monomer, the salt having a nitrogen content of 3.5 to 5.5 per cent, is prepared either by hydrolysing the polymer to the desired degree by heating in an aqueous slurry with calcium hydroxide to produce the calcium salt directly, or by precipitating the calcium salt from an aqueous solution of an alkali metal salt of the polymer prepared by hydrolysis with an alkali metal hydroxide.  The calcium salts can be filtered from the aqueous slurry if the slurry and the salt separated therefrom are maintained at a temperature in excess of 75 DEG  C. until dry, or by mixing with the slurry a small proportion of a water-miscible non-solvent for the polymeric salt, such as an alcohol, ether alcohol, ether, or ketone.  Copolymers which may be employed are those of the nitriles with each other or styrene, isobutylene, vinyl acetate, maleic anhydride, and vinyl or vinylidene chloride.  The polymeric calcium salts may be used as dispersing agents, sizing agents and adhesives, and in soil-conditioning applications as described in Specifications 730,463, 730,464 and 734,504.ALSO:As a soil-conditioning agent there is used a calcium salt of a partially hydrolysed homopolymer or copolymer of acrylonitrile or methacrylonitrile, the copolymer containing before hydrolysis at least 75 per cent of polymerized nitrile monomer, the salt having a nitrogen content of 3.5 to 5.5 per cent.  The polymeric salts may be employed in the manner described in Specifications 730,463, 730,464 and 734,504.
Patent GB-753100-A (GB)
Title: Improvements in or relating to a brake and clutch mechanism
IPC: F16D25/04
Filed: 1954-07-27
Abstract: 753,100. Friction clutches. WATERBURY FARREL FOUNDRY & MACHINE CO. July 27, 1954 [Aug. 3, 19531, No. 21884/54. Class 80(2) [Also in Groups XXIX and XXXIV] A combined brake and clutch mechanism, particularly for presser and like machines, has a band brake 30 which is operated to release condition by fluid pre'ssure supply to chamber 51 on the right hand side of piston 46 simultaneously with the application of disc clutch 14, 15 by inflation of bellows member 22. The pressurization of space 51 causes the piston 46 to move to the left compressing spring 54 and breaking the toggle linkage 37 39. Due to the greater area of space 51. a steady pressure in space 52 to the left of piston 46 is overcome when the brake is released, but when the clutch is disengaged, this constantly applied pressure acts together with spring 54 to apply the brake. To prevent the brake being applied before the clutch is properly released, a one-way restriction valve 65, Fig. 6. is inserted in the pipe 64 to retard the release of pressure from space 51. The fluid-pressure supply line 57 includes an air cleaner 58, a pressure regulating valve 59, an air lubricator 60, as well as the solenoid operated valve 62, 63, governing admission of pressure to conduit 28.
Patent GB-246402-A (GB)
Title: Improvements in or relating to plug cocks
IPC: F16K5/22
Filed: 1925-09-02
Abstract: 246,402. Blakeborough, R. A., and Heaton, A. Sept. 2, 1925. Channels and reservoirs in plug cocks.-In a plug cock having a lubricant chamber i formed in the body a beneath the smaller end of the plug b, to which chamber lubricant is supplied through longitudinal grooves h between the plug and the body, the grooves h lead from an annular groove g partly surrounding the upper end of the plug, the groove g being supplied with lubricant through a passage g<1> in the body from a lubricant chamber j by a screwed plunger k. A non-return valve l is arranged in a hollow ported fitting o held in the lower part of the chamber j. The grooves g, h may be formed in either the body or the plug.
Patent GB-1481888-A (GB)
Title: Bearing assemblies
IPC: F16C33/38
Filed: 1975-05-22
Abstract: 1481888 Bearings SPERRY RAND CORP 22 May 1975 [5 June 1974] 22079/75 Heading F2A A ball bearing assembly comprises inner and outer bearing rings 10, 12 having raceways and land portions 14, 15, and a generally cylindrical bearing cage 16, the cage having a mass centre of gravity CG that is eccentric with respect to the rotational axis 17 for producing, in operation, a centrifugal force radially displacing the cage between the rings such that a fixed point surface 22 of the cage contacts a land portion of one of the rings in a sliding contact relation thereby to maintain the cage contact point, the centre of gravity of the cage and the geometric centre of said one ring in a fixed positional relationship and thereby to maintain the radial inertial force vector of the cage substantially constant and predictable. The eccentricity is achieved by machining the cage with the central axis 20 of its inner diameter offset with respect to the central axis 21 of its outer diameter. Alternatively, a point mass may be added to a side wall of the cage. A further eccentricity may be imparted to the cage by unbalancing it about a diametral axis normal to the cage centrifugal force; this is achieved by machining steps 25, 26 in opposite cage faces. The overturning moment M c  achieved thereby may be augmented by relieving the upper portion 29 of the inner circumference of the cage. To ensure further that the bearing radial inertial force polygon always closes on itself, the positions of the ball pockets are asymmetrically distributed around the cage, and their axes are arranged to intersect at the bearing axis 17, after the cage has been radially displaced.
Patent GB-829451-A (GB)
Title: 2-substituted 3-methyl-2, 3-dihydroxy-hexenes-(5)
Inventor: FEIT PETER WERNER
Filed: 1957-07-12
Abstract: The invention comprises compounds of the general formula <FORM:0829451/IV (b)/1> in which X represents a hydrogen or chlorine atom; and the preparation thereof by treating 2 - phenyl - or 2 - p - chlorophenyl - acetoin with 2-propenyl-magnesium chloride or bromide and hydrolysing the Grignard compound formed thereby.  The products are useful as tranquilizers.  The Provisional Specification comprises also compounds containing, in place of the terminal propenyl group in the formula above, another alkenyl group of 2-6 carbon atoms or an alkyl group of the same size, the latter being obtained by hydrogenation of the former.  p-Chlorophenylacetoin is prepared by treating p - chlorophenyl - methyl - ethinyl - carbinol with mercuric oxide in 4N-sulphuric acid in the presence of methanol.
Patent GB-152640-A (GB)
Title: Statistical data representation systems and co-operating differential mechanism for perforated record card controlled statistical machines
Filed: 1919-08-27
Abstract: 152,640. Peirce, J. R. Aug. 27, 1918, [Convention date]. Codes.-Relates to perforated card controlled statistical machines, and particularly to methods of representing data by combinations of perforations and to differential mechanism for co-operating with such cards in machines of the type described in Specification 131,902, [Class 106 (i), Calculating, &c.] The combinations employed are shown in the "key," Fig. 16, and are shown applied to both additive and non-additive numerical data and to classification data expressed numerically in a card in Fig. 15. The cards are presented to the pins 202, Fig. 3, and rock levers 228 on shafts 229 to position lever stops 230 which engage and differentially set slides 232 corresponding to the "key" combination for each digit. The slides 232 are in sets of four, and have notches on the rear edge to engage projections on stop levers 261 pivoted also in sets of four on a shaft 244. The slides and stop levers are spring controlled and are restored to normal when necessary by yokes on shafts 253 and 244 respectively, operated by a timing cam. The slides 232 thus take the setting from a card early and set the stop levers 261 and are locked thereby, the latter engaging in fours by their curved profiled edges, ears on the downwardly extending arms of pivoted stops q so as to engage pins r on the sectors l and set them.
Patent GB-754289-A (GB)
Title: Method of producing semiconductor junction crystals (p-n-p-crystals)
IPC: C30B19/00
Filed: 1954-07-30
Abstract: 754,289. Crystal junctions. STANDARD TELEPHONES & CABLES, Ltd. July 30, 1954 [Aug. 4, 1953], No. 22298/54. Class 37. A crystal junction is manufactured by dipping one or more thin sheets 3 of N-type germanium or silicon into a melt of the corresponding P-type material or conversely so that the molten material is separated into two parts and heat is conducted from the sheet by way of a terminal wire or strip 4 or by contact with a mass of metal or by jets of cooling gas so that the whole cools from the centre outwards. Initially, the bath may be of the same conductivity type as the plate which is given coatings of materials which diffuse rapidly into the butt when the plate is inserted. By this means the junctions on the two sides of the plate may differ. Further terminals may be provided by dipping wires into the cooling melt or by vaporizing, spraying, or otherwise applying a metallic coating or by soldering wires on to the solidified unit. The thin sheet 3 may have a comparatively thick upper edge for the attachment of the terminal wire or strip, Fig. 4 (not shown), and the sheet may enter slots in the sides of the crucible to ensure complete separation of the two parts of the melt, or the crucible may be in separate halves, Fig. 5 (not shown).
Patent GB-1079829-A (GB)
Title: Printed circuit edge connector assembly
IPC: H01R13/02
Filed: 1966-05-19
Abstract: 1,079,829. Edge connecter for printed circuit boards. AMP Inc. May 19, 1966 [June 12, 19651, No. 22323/66. Heading H2E. An edge connector comprises a contactcarrying block 1 and a frame member 6 which has a pair of upstanding grooved guide members 12 for receiving a printed circuit panel. The block 1 snap-fits into the frame 6 by means of engaging grooves 5 and projections 9, the block being of a thermosetting plastics material, preferably phenolic resin, and the frame being of a thermoplastic material, preferably polyethylene. The contacts are moulded in the body 1 and are in the form of ridged blades 4, preferably arranged in two rows for engaging opposite faces of the printed circuit panel. A cap member 17, which is slotted to engage the upper edge of the panel, snap-fits into projections 14 of the guides 12, and a rib 15 and a groove 16 formed on the outer edges of the respective guides enable several units to be fitted together. The frame 6 may be screwed to a mounting panel which is apertured for passage of terminal tags 3 of the contacts 4.
Patent GB-1032934-A (GB)
Title: Improvements relating to panel structures
Inventor: BRADLEY WILLIAM GEORGE
IPC: A47B96/20
Filed: 1962-06-12
Abstract: 1,032,934. Trays, dishes etc.; stands. IAN HEATH Ltd. Mav 22. 1963 [June 12, 1962], No. 22462/62. Headings A4A and A4H. [Also in Division B3] A tray, dish, paper-rack &c. comprises a panel member 10 capable of being bent without splitting and having spaced tongues which are in interlocking engagement in or through apertures 14 in metal edging members 13. As shown, the panel consists of upper and lower laminated sheets 11, 12, each sheet being formed of a layer 11a, 12a of ductile metal, e.g. steel, bonded or otherwise secured to an outer non-metallic layer 11b, 12b preferably of a synthetic resin simulating a wood grain, the panel being secured in troughed form by tongues 21 provided in the sheet 11. The member 13 has a slot 25, receiving the edges 23, 24 of both sheets as a close sliding fit, and recesses 26, receiving the downwardly bent tongues 21. The longitudinal edges of the panel are channelled and received in enlarged ends of the slot 25. Handles 30 and feet 27 are formed integrally with, or secured to, the edging members. In modifications both sheets of the panel have tongues and the longitudinal edges of the lower sheet are bent so as to close the mouth of the channelled longitudinal edge of the upper sheet, the panel is formed of a single sheet, or the recesses 26 are replaced by a continuous groove. In further modifications, the tongues are secured in the apertures by being twisted about their median axes or engaged by set screws, a cover piece being applied to the outside of the edging member.
Patent GB-204842-A (GB)
Title: Auxiliary power apparatus for motor vehicles and the like
IPC: B60K25/10
Filed: 1922-08-18
Abstract: 204,842. Frechette, A. A. Aug. 18, 1922. Motive power, application of; motor cars and the like; compressing and distributing air for uses other than propulsion.- Relates to a vehicle of the kind in which air is compressed into a. reservoir by pumps operated by the play of the frame on the springs, the compressed air being utilized for propulsion or for other purposes. Four pumps 22 each consisting of a piston and cylinder, are arranged between the frame 11 and the axles, flexible connections 25 being employed. Inlets 27 and outlets 29 each with one way valves are arranged at each end of the cylinders, and the compressed air is delivered into a long reservoir 17 clipped to a frame member. A reversible motor 34 is supplied with compressed air at either end according to the desired direction of rotation, the valves being operated by forward and reverse pedals. A toothed pinion on the shaft of the motor is slidable into gear when required with a toothed wheel on the propeller shaft.
Patent GB-788779-A (GB)
Title: Method of manufacturing reinforced synthetic plastic tubes
IPC: B29D23/00
Filed: 1956-07-20
Abstract: 788,779. Reinforced tubes. NAAMLOOZE VENNOOTSCHAP POLYPRESS. July 20, 1956 [July 20, 1955], No. 22557/56. Class 99(2). In a method of making reinforced synthetic plastic tubes, a non-reinforced plastic tube having a wall thickness of, e.g., 1À5 to 4 millimetres, is made by centrifugal casting and fitted on to a core, after which a reinforcing strip impregnated with a synthetic plastic, and, e.g., of glass fibre mat, linen or cotton fabric, is wound over the tube until the wall of the tube has reached the required thickness. To facilitate removal of the tube from the core the latter is coated with wax which melts when curing of the tube in a furnace takes place.
Patent GB-983734-A (GB)
Title: Process for the production of ª‡-[o,o-dialkyl-mono-and-dithiophosphoryl]-n-monosubstituted carboxylic acid amides
IPC: C07F9/165
Filed: 1963-06-06
Abstract: a  - [O,O - dialkylmono (or di-) thiophosphoryl] - N - monosubstituted carboxylic acid amides are obtained by reacting a a -[O,O-dialkylmono (or di-) thiophosphoryl-carboxylic acid with an organic isocyanate.  The reaction takes place with the splitting off of carbon dioxide and is preferably effected by mixing equimolecular proportions of the reactants and maintaining a reaction temperature of between 20 DEG  and 50 DEG  C. by cooling.  It is preferred to carry out the reaction in the absence of a solvent but if desired an inert solvent may be present, e.g. a chlorinated hydrocarbon or an ether or ketone.  Specified isocyanates are methyl, ethyl, isopropyl, butyl, b -chloroethyl, b -cyanoethyl, 2,3 - dichloropropyl, trichloromethyl, cyclohexyl, benzyl, tetrahydrobenzyl, dodecyl, and dichlorohexahydrobenzyl isocyanates and acyl isocyanates such as p-tolyl-sulphonyl isocyanate and O,O-diethyl phosphoryl isocyanate. The reaction is illustrated by the following equation for the indicated reactants:- <FORM:0983734/C2/1> Several examples are given including one for the production of the compound:- <FORM:0983734/C2/2> Specifications 663,270 and 932,011 are referred to.
Patent GB-453017-A (GB)
Title: Improvements in or relating to apparatus for playing a game
IPC: A63F9/20
Filed: 1935-08-10
Abstract: 453,017. Card and domino games. ANDERSON, C. G., China Building, Victoria, Hong Kong. Aug. 10, 1935, No. 22617. [Class 132 (ii)] Dominoes (or cards) for playing a game comprises a long suit consisting of say twenty-two black dominoes comprising eleven pairs, each pair having members of the same value, and a short suit 16 consisting of say ten red dominoes comprising four pairs and two red dominoes 18, 20 differentially marked as shown this last pair ranking highest when led together A die 22 is thrown to determine which stacks of dominoes are allotted to each player, and an indicator is used comprising an apertured disc which is spun above a fixed numbered disc.
Patent GB-1188974-A (GB)
Title: A method for preparing Ionic Hydrides
IPC: C01B6/00
Filed: 1967-05-17
Abstract: 1,188,974. Metal hydrides. CESKOSLOVENSKA AKADEMIE VED. 17 May, 1967 [17 May, 1966], No. 22810/67. Heading C1A. Hydrides of alkali or alkaline earth metals (including Mg) are made by direct interaction of the metal or metal alloy with H 2  gas, while stirring in presence of a surface-active agent comprising. (1) an alcohol, the OH group of which is attached to a C 2-6  carbon chain, (2) a monocarboxylic acid, the OH group of which (defined as part of the COOH group) is attached to a C 2-7  carbon chain, or (3) tetrahydrofurfuryl alcohol, tetrahydrofurfuryl-oxy-alkanols, tetrahydropyranyl carbinol, (tetrahydropyranyl-methoxy) alkanols or tetrahydrofuroic acid. In each case, the H atom of the OH group is replaced by B, Si or a metal atom, and in (1) and (2), the carbon chain, which may be cyclized, bears on a carbon atom other than that bearing the OH group, an alkoxy-, aryloxy-, phenoxyalkoxy-, amino- or substituted amino-group. "Alkoxy," includes aminoalkoxy-, amino-(polyalkoxy)- and polyalkoxy. Typically, the surface-active agents may be R(OC n H 2n ) m  OH or R(OC n H 2n ) m-1 OC n-1 H 2n-2 CO 2 H where R is cyclohexyl-, phenyl-, tolyl-, tetrahydrofurfuryl-, tetrahydropyranyl-, or C p H 2p+1 , and n is 2-6, m is 1-4 and p is 1-6. Similar formulae are disclosed for amino- and amino-ether alcohols and acids. The surfaceactive agent may be added to the reaction mixture as such or may be formed in situ, e.g. by hydrolysis of an ester and/or reaction with the substituting B, Si or metal atom. The latter may be the same as the hydride-forming metal. In the many examples, Li, Na, K, Ca, Ba, Sr or Mg and a surface-active agent or its precurser are reacted with H 2  in autoclaves equipped with stirring means at pressures of 5-10 or 100 atmospheres and at 170-360‹ C. A dispersing medium, e.g. a paraffin may also be present. The hydrogen may be replaced by deuterium or tritium.
Patent GB-1094272-A (GB)
Title: Improvements relating to apparatus for retaining yarns in yarn cleaners
IPC: B65H54/71
Filed: 1965-05-28
Abstract: 1,094,272. Slub clearers. ZELLWEGER Ltd. May 28, 1965 [Aug. 28, 1964], No. 22811/65 Heading D1J. When the electro-magnet 15 is energized the armature 14 causes the cutter 5 to move to the left to sever the yarn 1, and the spring 9 then causes the clamping slide 6 to grip the yarn. On de-energizing the electro-magnet the spring 12 returns the clamping slide 6 to the setting shown and the spring 9 returns the cutter 5 to the setting shown.