baber/WOPTO huggingface dataset:
Patent GB-1061576-A (GB)
Title: Method and means for manufacturing liquid oxygen for fuel cells
IPC: F25J1/02
Filed: 1964-06-16
Abstract: 1,061,576. Cold separation of air. ALLM€NNA SVENSKA ELEKTRISKA A.B. June 16, 1964 [June 17, 1963], No. 24861/64. Heading F4P. In an air separation process for the production of liquid oxygen which is then vaporized in a chamber (58) (Fig. 1, not shown) and supplied through a line (30) to the oxygen chamber (20) of a fuel cell (12) the separation column (101) (Fig. 2, not shown) is supplied through a line (103) with liquid nitrogen from a chamber (52), a first portion of effluent nitrogen is condensed in a liquefier (111) and returned to the column (101) whilst the remainder serves to cool the feed air in an exchanger (106) and a drier (104) and a portion of product liquid oxygen is withdrawn from chamber (58) through a line (60) and a coil (54) and serves to condense nitrogen forming the major component of burnt fuel gas leaving the combustion chamber (14) of an ammonia cracker (11). The mixture of hydrogen and nitrogen leaving the retorts (13a) at the cracker is fed through a line (22) to the fuel gas chamber (19) of the cell (12). Unconsumed hydrogen and oxygen together with hydrogen are withdrawn from the cell chambers (19, 20). Stale air from a submarine is added at (45) and the mixture burnt in said chamber (14). The combustion products are purified at (32, 36) and the portion not condensed at (51) is added at (48) to oxygen gas leaving chamber (58) and coil (54) through lines (30, 46) for replenishment of the atmosphere within the submarine.
Patent GB-896872-A (GB)
Title: Improvements in power-assisted steering gear
Inventor: ADAMS FREDERICK JOHN
IPC: B62D6/02
Filed: 1957-08-07
Abstract: 896,872. Vehicle power steering. HYDROSTEER Ltd. Aug. 6, 1958 [Aug. 7, 1957], No. 24958/57. Class 79(5). In a power steering servo control valve 11, Fig. 1, biased to its neutral position by hydraulic pressure derived from the supply line 8 in which the biasing pressure is limited by a relief valve 21, Fig. 2, incorporated in the body 7 of the control valve, the supply pressure is connected to the biasing chamber 17 through a central passage 9 in the valve piston 11 which has a restriction 24, Fig. 3, in the branch passage 16 leading into the chamber 17 and serving to reduce the rate of flow of biasing pressure fluid. The biasing chamber 17 is connected to the chamber 18 of the relief valve 21 which is loaded by a spring 22, the loading of which may be varied by a screw (not shown) operable from outside the casing and engaging the valve body 19.
Patent GB-754620-A (GB)
Title: Improvements in or relating to photographic objectives of the petzval type
IPC: G02B13/00
Filed: 1954-08-31
Abstract: 754,620. Photographic objectives. PAILLARD SOC. ANON. Aug. 31, 1954 [Nov. 4, 1953], No. 25216/54. Class 97 (1). An objective consists of two achromatic doublets each formed of two air-spaced elements and arranged so that the radius of the second surface of the first element in the front doublet and of the first surface of the second element thereof are each of absolute value at least 1-3 times that of the radius of the first surface of the said first element which is greater than 80 per cent of the focal length of the objective, and the radius of the second surface of the first element of the rear doublet is greater than that of the first surface thereof, the thickness of this element being between 10 and 25 per cent of the focal length of the objective. Numerical data are given for two examples of the objective shown.
Patent GB-283629-A (GB)
Title: Improvements in or relating to terminal connectors and the like
IPC: H01R11/24
Filed: 1926-10-11
Abstract: 283,629. Barnett, D. E. Oct. 11, 1926. Wire terminals.- A connector for engaging a threaded stem such as the terminal of a sparking plug comprises a springy claw 2 embracing slightly more than 180‹ and having an internal screw thread, the claw being capable off being applied in a lateral direction to the stem. The claw members may be mounted upon a shank 3 at right angles to or parallel to the bore of the claw and the shank may form a resilient mounting for the members 2 being split in the plane of the axis of the bore of the claw and also in a plane at right angles thereto. The wire 9 may be attached to the terminal by means of a groove 8 between two threaded portions 5, a hole 7 opening into the groove and an insulating sleeve 10 surrounding the connection.
Patent GB-1188252-A (GB)
Title: Improvements in or relating to Suspension Polymerization Processes
IPC: C08F2/16
Filed: 1968-05-27
Abstract: 1,188,252. Suspension polymerization. ATLANTIC RICHFIELD CO., and KOPPERS CO. 27 May, 1968 [26 May, 1967], No. 25350/68. Heading C3P. Polymer beads are produced by heating a suspension of an aromatic compound, substituted by at least one vinyl or α-substituted vinyl group, containing an oil-soluble free radical initiator in an aq. medium with the aid of a finely divided phosphate suspending agent, which requires more than 100 parts by wt. of water to dissolve one part by wt. thereof, and at least 0À0003% by wt. based on the monomer, of a water soluble sulphite, or a compound which under the polymerization conditions will form such a sulphite, is added to the suspension before the monomer has polymerized to the bead identity point. The monomer may be styrene with optionally 2-ethyl-hexyl acrylate. The initiator may be a mixture of benzoyl peroxide and t-butyl perbenzoate or azobisisobutyronitrile. The phosphate may be tricalcium phosphate. The sulphite or precursor thereof may be sodium bisulphite, sodium or potassium metabisulphite, sodium hydrosulphite or -sulphide, sodium formaldehyde sulphoxylate or sulphurous acid.
Patent GB-600100-A (GB)
Title: A new or improved safety device for machinery
IPC: F16P3/16
Filed: 1945-09-29
Abstract: 600,100. Machinery guards. SHAHROCK & SONS, Ltd., R., and JACKSON, H. L. Sept. 29, 1945, No. 25357. [Class 80 (iv)] A machinery guard for a pie-making machine comprises a pivoted fender 14 depending from the normally fixed guard 4 surrounding the vertically reciprocating die, the fender 14 being adapted to close a switch 8 to stop the machine when displaced by the operator's fingers, or by an abnormally large workpiece passing underneath in the direction of the rotating table 1. The height of the fender may be adjusted to be always a minimum height above the mould 2. The switch may also actuate electromagnetic braking means.
Patent GB-801395-A (GB)
Title: Method of producing high grade half-hydrate-gypsums
IPC: C04B11/02
Filed: 1955-09-05
Abstract: Half-hydrate gypsum is prepared by autoclaving gypsum in steam at above 100 DEG  C. to form alpha half-hydrate, cooling to normal temperatures and aging under normal humidity for a time sufficient for the alpha half hydrate to be stabilized, normally at least a week, and finally roasting in air at above 100 DEG  C.  Between the autoclaving and the roasting the gypsum is preferably ground.  The setting time is controlled by the duration of the roasting and the strength, dependent on the alpha half-hydrate content, is controlled by the ageing time.  An example refers to gypsum heated in an autoclave under saturated steam at 2.5 atmosphere pressure to produce 100 per cent alpha half-hydrate, cooled and aged for three weeks, ground and finally roasted at 180 DEG  C. in air and ground.
Patent GB-715303-A (GB)
Title: Improvements in or relating to keyless clockwork toys
IPC: A63H29/04
Filed: 1952-10-10
Abstract: 715,303. Mechanical wheeled toys. FRANCIS, B. F. July 29, 1953 [Oct. 10, 1952], No. 25404/52. Class 132(3) A keyless clockwork travelling toy has a front-wheel drive and the front axle may be swung in a horizontal plane to steer the top. A toy motor car comprises a clockwork mechanism 15 which is wound by bearing on the toy and simultaneously moving the toy backwards along the ground or other surface, a wheel .21 . engageable with the ground thus being rotated and the mainspring wound. The front axle 16 is supported in one circular bearing' 28 and in a slot 27, Fig. 4, the axle thus being able to swing within the limits of the length of the slot 27. The axle 16 is adjustable in its slot by means of an arm 30 pivoted at 31 to a side plate 13 of the clockwork mechanism, the arm projecting through the vehicle chassis plate 10 and having an aperture through which the axle passes. The wheel 21 is normally clear of the ground as a result of the lower position of the front wheels, the front part of the clockwork mechanism carrying the front wheels and axle being resiliently held in the position shown in Fig. 4 by a spring 17.
Patent GB-627988-A (GB)
Title: Improvements in or relating to the treatment of polymers
IPC: C08F8/20
Filed: 1946-08-26
Abstract: Polymerized acrylates having ester groups higher than propyl, e.g. n-butyl, iso-butyl, lauryl, cetyl, benzyl and hydroabietyl, are dispersed in a liquid, chlorine gas is bubbled through the dispersion until an average of at least three chlorine atoms are substituted for hydrogen and the solid chlorinated product is separated.  Liquids specified are carbon tetrachloride, chloroform and acetic acid.  The chlorination is preferably effected at elevated temperature and in the presence of light. Separation is effected by precipitation by addition of methyl or ethyl alcohol, water or mineral spirits with vigorous agitation; or by volatilizing the solvent by addition of boiling water, by spraying into a warm chamber or by spreading in solution as a film or extruding as a filament.  Example 8 describes the preparation of monomeric hydroabietyl acrylate by alcoholysis of methyl acrylate and distilling to yield the pure monomer and a still residue of polymer.
Patent GB-639950-A (GB)
Title: Improvements in or relating to multi-stage compressors
IPC: F04B39/06
Filed: 1947-09-18
Abstract: 639,950. Compressors. MOREILLON, A. E. Sept. 18, 1947, No. 25446. [Class 8(i)] A multi-stage compressor having a common crankshaft 19 driven through worm gearing 22, 23, from a main shaft 24 comprises two first and second stage cylinders 1 disposed on either side of the shaft 24 and the third stage cylinders 9 disposed at right angles to the cylinders 1 and parallel to the shaft 24. Common inter-stage coolers 25, 26 between the first and second and second and third stages, together with a high pressure receiver 27 are located in the angle between the cylinders 1 and 9. Specifications 637,194, 637,195, 637,196 and 637,199, [all in Group XXVI], are referred to.
Patent GB-500133-A (GB)
Title: Improvements in and relating to indirectly heated steam generators
IPC: F22B1/14
Filed: 1937-09-20
Abstract: 500,133. Heating steam boilers by steam; heating systems. GILLI, P. Sept. 20, 1937, No. 25447. [Classes 64 (ii) and 123 (ii)] Steam boilers utilizing a heating medium such as steam in sealed tubes 1 comprising heat-emitting and heat absorbing portions 11, 8, have an inner tube 9 in the heat absorbing portion together with collecting means 12 conducting condensate. to the interior of the inner tube whence it passes to the lower end of the hoat absorbing portion. An inner tube 13 may also be provided in the heat emitting portion which is preferably of greater diameter than the other portion when this is of considerable length and divided from it by a partition for accumulating condensate. The two portions 8, 11 may consist of separate tubes coupled together. Another construction provides a container which may be common to all the tubes between the two portions. The boiler drum receiving the portions 11 may bb similarly inclined. The tubes may be connected to a common vessel, the connections being closed by diaphragms bursting at different pressures. A boiler for vehicles comprises a cylindrical or conical combustion chamber 26 surrounded by concentric flues 28, 30 containing the heat absorbing portions of heating elements extending into drums 2. Inclined ribs impart a helical flow to the gases in the outer flue which may also contain superheaters and feedwater heaters. The heat absorbing portions 8 may be made of corrosion-resisting alloy. The water level in the boiler drum may be varied in correspondence with different waste gas temperatures.
Patent GB-1023339-A (GB)
Title: Bright gold alloy electroplating
IPC: C25D3/62
Filed: 1963-06-26
Abstract: A gold-silver alloy plating bath contains AuCN 2-40 g./l., AgCN 0.3-8 g./l., and alkali cyanide 20-200 g./l.  The bath is used at 15-48 DEG C., and forms a hard undercoat for a thin high carat gold plate. Metal salts e.g. the cyanides of Fe, Co, Ni, with alkali metals or In cyanide may be added.  The coating formed contains 90-500 parts Ag per 1000 of Au.  Optional additions include sodium hyposulphite and Turkey Red Oil.
Patent GB-1146907-A (GB)
Title: Method of and apparatus for the non-destructive testing of spot welds and other pressure welds
IPC: G01N29/04
Filed: 1966-06-08
Abstract: 1,146,907. Ultrasonic inspection devices. K. DEUTSCH, [trading as KARL DEUTSCH]. 8 June, 1966 [8 June, 1965], No. 25591/66. Heading H4D. In a system for indicating the quality of a weld between two workpieces the flows of ultrasonic energy through the weld zone before and after the welding operation while the workpieces are under pressure are compared. The Fig. 1 embodiment comprises piezoelectric transducers S, E, mounted in coolant passages in the electrodes El (detailed in Fig. 2, not shown) of a spot-welding machine and coupled to transmission pulse generator G and receiving amplifier V. Before the welding operation, a D.C. voltage indicative of the energy of a received pulse train is derived in unit M, stored in storage unit SP and compared with a reference voltage. Any difference between the two voltages is detected by regulator R which is operative before welding to vary the gain of amplifier V and so reduce the difference to zero, thus compensating for disturbances due e.g. to variations in acoustic coupling between the transducers S, E, and the workpieces. Control unit St then initiates and stops the flow of welding current. During cooling of the weld a second D.C. voltage indicative of the energy in a second received pulse train is derived in unit M and compared with the first (stored) D.C. voltage by means of evaluator unit A. Welding parameters may be manually or automatically controlled in accordance with the indications of unit A. Circuit details are given.
Patent GB-961635-A (GB)
Title: Stainless steel alloy
IPC: C22C38/30
Filed: 1962-07-04
Abstract: Stainless steels comprise: <TABS:0961635/C6-C7/1> the balance being iron plus impurities usually present in steels. The heat treatments described comprise austenizing at 1900-2100  DEG F., cooling to room temperature, or preferably refrigerating at -100  DEG F. for 1/2 hour, followed by tempering at an elevated temperature below 1500 DEG F. e.g. at 1100  DEG F. for 2+2 or 2+2+2 hours. Cooling from the austenizing temperature is preferably carried out by oil quenching. Specification 936,160 is referred to.
Patent GB-1385725-A (GB)
Title: Pirn tube holder
IPC: B65H54/54
Filed: 1972-06-01
Abstract: 1385725 Pirn holder SCHWEITER ENG WORKS Ltd 1 June 1972 [4 June 1971] 25679/ 72 Heading D1J [Also in Division F2] A pirn tube holder comprises a spindle, segments movable axially and radially of the spindle to engage a pirn tube interior, and means preventing relative movement of the segments in rotation about and axially of the spindle. As shown, Fig. 2, the holder comprises spindle 1 supporting three segments 11. Sleeve 2, when slid along the spindle, moves the segments axially via flange 16 and pins 18, and frusto-conical surfaces on spindle-mounted members 7, 15 co-act with similarly shaped segment and surfaces to move the segments radially. Flange 16 received in segment slots 17 prevents axial movement of the segments and pins 18 slidably received in segment bores prevent rotation of the segments. Pins 3 passing through slots in sleeve 2 secure member 7 to the spindle. Flanges 14, 15 retain the segments on the spindle. Springs 5, 9 bias the segments outwardly.
Patent GB-599179-A (GB)
Title: Thiolcarbamic esters
IPC: C07C333/02
Filed: 1945-10-03
Abstract: Thiolcarbamic esters are manufactured by bringing into interaction an S-ester of thiolchloroformic acid, of the formula R(SCOC1)m, and a primary amine R1(NH2)n (or a salt thereof), wherein R and R1 represent hydrocarbon radicals, substituted or unsubstituted, the same or different, m is 1 or 2 and n is 1, 2, 3, 4 or 5, in the presence of an acid-binding agent which does not react with an S-ester of thiolchloroformic acid under the conditions of the reaction, e.g. an inorganic acid-binding agent such as sodium hydroxide or an organic acid-binding agent such as a tertiary amine or a metal salt of an organic acid.  The reaction is preferably carried out at 0-10 DEG  C., and conveniently in the presence of a solvent, which, when the primary amine is used in the form of a water-soluble salt, is preferably water.  In examples: (1) p-tolyl thiolchloroformate is stirred with heptadecylamine in ethyl alcohol in the presence of dimethylaniline to produce p-tolyl heptadecylthiolcarbamate; the heptadecylamine may be replaced by p-aminophenol, m-phenylenediamine or a -naphthylamine; (2) ethylenediamine similarly (but using benzene as solvent) yields di-p-tolyl ethylene-bis-(thiolcarbamate); the ethylenediamine may be replaced by hexamethylene diamine, 1 : 3 : 5-triamino-2 : 4 : 6-triethylbenzene or aniline; (3) a -naphthylamine is treated as in (1), except that sodium acetate or sodium hydroxide is used as the acid-binding agent, producing p-tolyl a -naphthylthiolcarbamate; (4) aqueous sulphanilic acid similarly (using sodium hydroxide) gives p-tolyl p-sulphophenylthiolcarbamate; (5) p-aminobenzoic acid or b -alanine is treated as in (4) to produce p-tolyl p-carboxyphenyl- or b -carboxyethyl-thiolcarbamate; (6) ethyl thiolchloroformate and ethylenediamine are reacted as in (1) to form diethyl ethylene-bis-(thiolcarbamate); (7) p-tolyl thiolchloroformate is stirred with aniline in ethyl alcohol in the presence of triethylamine to yield p-tolyl phenylthiolcarbamate; (8) the ethyl alcohol and triethylamine in (7) are replaced by petroleum ether and pyridine; (9) m-phenylene-bis-(thiolchloroformate) is stirred with aniline in benzene in the presence of dimethylaniline to form m-phenylene-bis-(phenylthiolcarbamate); (10) 4 : 41 : 411-triaminotriphenylmethane trihydrochloride is stirred with p-tolyl thiolchloroformate in aqueous solution in the presence of dimethylaniline to give tri-p-tolyl triphenylmethane-4 : 41 : 411-tris-(thiolcarbamate); the triaminotriphenylmethanetrihydrochloride may be replaced by 2 : 4 : 31-triaminostilbene trihydrochloride, 2 : 4 : 21 : 41-tetraminostilbene tetrahydrochloride or 2 : 4 : 21 : 41 : 311-pent amino-5 : 51-dimethyltriphenylmethane pentahydrochloride; (11) ethyl thiolchloroformate is treated as in the first part of (10) to produce triethyl triphenylmethane - 4 : 41 : 411 - tris - (thiolcarbamate). Additional amines specified are ethyl p-aminobenzoate and 1 : 5-pentanolamine.  1 : 3 : 5-Triamino-2 : 4 : 6-triethylbenzene is obtainable by hydrogenating 1 : 3 : 5-trinitro-2 : 4 : 6-triethylbenzene.
Patent GB-673115-A (GB)
Title: Improvements in or relating to electrically operating moisture meters
Inventor: BROCKELSBY CHARLES FOUNTAIN
IPC: G01N27/04
Filed: 1949-10-07
Abstract: 673,115. Moisture measurements. MARCONI INSTRUMENTS, Ltd. May 11, 1950 [Oct. 7, 1949], No. 25852/49. Class 37. A moisture meter in which the D.C. conductivity of a specimen is measured comprises means for alternately applying to the specimen similar voltages of opposite polarities, these voltages being applied for short periods of time separated by short periods of time, and means for making the resistance measurements during periods of application of voltages of one polarity, the applied voltages of the other polarity being utilized to depolarize the specimen. Electromechanical switching means may be employed to apply the two opposite voltages alternately to a circuit comprising the specimen and a current meter in series and to shortcircuit the meter during the application of one of these voltages. It is preferred, however, to derive the voltages of opposite polarity from the alternate half-waves of an A.C. supply, as shown in Fig. 2. The A.C. supply M is connected through a transformer T, the secondary T2 of which is connected through a limiting resistance LR to a pair of gas discharge diodes D1, D2 across which is connected a valve voltmeter consisting of a valve V, cathode resistance R2, and current meter I. The specimen R under test is connected between the junction of the diodes D1, D2 and the grid of the valve V. In a modification, Fig. 3, two valves VI, V2 are employed, of which the valve V1 is the working valve and the valve V2 is provided for backing off the standing current in the valve V1. A tapped resistance TR provides for different ranges of measurement.
Patent GB-1473336-A (GB)
Title: Dissolving and dispensing apparatus
IPC: B01F1/00
Filed: 1974-06-11
Abstract: 1473336 Dissolving and dispensing soluble solids OLIN CORP 11 June 1974 [4 Sept 1973 28 Jan 1974] 25870/74 Heading B1C In an apparatus for dissolving and dispensing soluble solid material comprising a closed container having an upper chamber 1 and a lower chamber 2 separated by partition 3, upper chamber 1 has two compartments separated by partition 6 and liquid solvent entering compartment 4 by inlet 10, as shown from pipe 7, flow indicator 8 and needle valve 9, fills receptacle 11 pivotally mounted on trunnions 12. When filled receptacle 11 pivots and empties and the liquid solvent flows out of compartment 4 through opening 74 in partition 3 into flow control means 75 and thence up into compartment 5 through opening 79. The liquid entering compartment 5 comes into contact with the soluble solid material held in magazine 18 having a pervious lower end 19. One or more openings, such as pipe 21 lead the solution into chamber 2 and the solution leaves chamber 2 via second flow control means, such as float valve 22, and outlet 24. Float valve 22, 84-87 may carry a member (88, Fig. 4 not shown) which controls a valve connected to inlet pipe 7. A passage 73 in partition 3 allows overflow of liquid in compartment 4 to pass directly to lower chamber 2. Flow control means 75 comprises a cupshaped part 76 with an apertured flange 99 and is eccentrically rotatably mounted on the underside of partition 3 to underlie openings 74, 79. Rotated adjustment of the cup allows a variable part of the liquid issuing from opening 74 to bypass the cup 76 through aperture (77, Fig. 2 not shown) in flange 99 and to flow directly to chamber 2. Magazine 18 may be adjustable in its vertical position, Figs. 5, 6 in order to vary the amount of solid material contacted by the liquid, by means of a cam 133 engaging a part of the magazine wall or, as shown, a yoke 130 fixed to the wall, and rotated by a wheel 132 on the outside of the container. The magazine may have a cover member 138, Figure 8, having a handle 139 with grips 144-146 connected to latches 147- 149, latch 148 securing the handle to member 138 and latches 147, 149 securing the assembly to the magazine. Grip 146 is sufficiently flexible to release latch 149 when the grip is raised. The container may be constructed of a material resistant to the effects of the solution. Examples of the material include copper, stainless steel, polystyrene and nylon.