baber/WOPTO huggingface dataset:
Patent GB-591392-A (GB)
Title: A process for the manufacture of mercaptols
Filed: 1945-05-07
Abstract: Substituted mercaptols of general formula <FORM:0591392/IV/1> wherein R1 represents an amino-group or an aminomethyl- or an alkyl-aminomethyl-group protected by an aliphatic or aromatic acid residue, e.g. acetyl or benzoyl, R2 represents hydrogen or alkyl optionally carrying substituents not interfering with the reaction, and R3 represents hydrogen or an alkyl, aralkyl or aryl group, which groups may likewise carry non-interfering substituents, such as alkyl, methoxy, nitro or carboxylic acid groups, are obtained by condensing a p-substituted thiophenol of general formula <FORM:0591392/IV/2> with an aldehyde or ketone of general formula <FORM:0591392/IV/3> in a solvent inert under the reaction conditions, in presence of an acid condensing agent.  The products may be hydrolysed to isolate the free diaminomercaptols.  In examples: (1) p-acetaminophenylmercaptan in glacial acetic acid is treated with paraform and concentrated sulphuric acid to produce bis-(p-acetaminophenylmercapto)-methane, which is hydrolysed to the corresponding free diamino-compound by heating under reflux with 2N-hydrochloric acid, and treating the evaporated filtrate with 2N-sodium carbonate; (2) p-acetaminophenylmercaptan in chloroform is treated with paraldehyde and saturated with gaseous hydrogen chloride to obtain a  : a -bis-(p-acetaminophenylmercapto)-ethane which is hydrolysed to the free diamino-compound by heating under reflux with 10 per cent alcoholic caustic potash; (3) p-acetaminophenylmercaptan in chloroform is treated with acetone and hydrogen chloride to yield b  : b -bis-(p-acetaminophenylmercapto)-propane; (4) p-acetaminophenylmercaptan and p-nitrobenzaldehyde in chloroform are treated with hydrogen chloride to isolate o  : o -bis-(p-acetaminophenylmercapto)-p-nitrotoluene; (5) p-succinimido - methylphenylmercaptan in chloroform is treated with paraform and hydrogen chloride and the reaction-mixture is diluted with water to isolate bis-(p-succinimidomethylphenylmercapto) - methane; (6) p-succinimido - methylphenylmercaptan in acetic acid is treated with paraldehyde and hydrogen chloride to isolate the corresponding product.  Nitrobenzene is also specified as a suitable solvent. p-Succinimido-methylphenylmercaptan is obtained by treating p-succinimido-methyl-benzenesulphonyl chloride with aqueous alcohol, zinc dust and concentrated hydrochloric acid. p-Succinimido-methyl-benzenesulphonyl chloride is obtained by reacting chlorosulphonic acid and benzylsuccinimide below 10 DEG  C.
Patent GB-400100-A (GB)
Title: Improvements relating to the voltage control of parallel alternating current circuits
IPC: H02J3/06
Filed: 1933-04-21
Abstract: 400,100. Automatic regulation. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, AYRES, W. E. M. and TABB, R. P. E., Siemens Works, Stafford. April 21, 1933, No. 11676. [Class 38 (iv).] In a system for automatically regulating the voltage on parallel polyphase feeders and sharing the load equally wherein each line has a polyphase induction regulator which injects therein a voltage varied in phase by the movement of its secondary winding, the line voltage relays 7 are operated in response to circulating currents in the feeders by a current transformer 23 having its primary winding in series with a primary winding 4 on one of the induction regulators and its secondary opposed to that of a similarly constituted current transformer 24 associated with another induction regulator. The control relays may each be connected to a potential transformer 9, with its primary across two of the phase lines, and to the aforesaid current transformer, which is associated with the third phase. The secondary windings of these current transformers, which are associated with the respective feeders, may be cross connected and connected to the impedances 13, employed for line-drop compensation, as shown.
Patent GB-372534-A (GB)
Title: Method of ignition in mixture compressing internal combustion engine
IPC: F02B43/10
Filed: 1931-04-20
Abstract: 372,534. Oil engines. FUCHS, G.; 151, Schmidenerstrasse, and SP€TH, H., 4, K³ferstrasse, both in Cannstatt, Stuttgart, Germany. April 20, 1931, No. 11708. [Classes 7 (ii) and 7 (iv).] A mixture of hydrogen and oxygen produced by the decomposition of steam under intense heating is admitted by a valve h to effect the ignition of a charge of combustible mixture in the cylinder at the end of the compression stroke. The igniting charge is drawn from a passage e into a pump chamber c from which it is discharged into the working cylinder through the valve h. A mechanically actuated timed valve may be located in the supply passage e which valve and the admission valve h may both be of the poppet type.
Patent GB-1132038-A (GB)
Title: Vibration dampers
Inventor: DUCKETT WILLIAM ARTHUR
IPC: F16F9/48
Filed: 1966-03-17
Abstract: 1,132,038. Hydraulic shock-absorbers. WOODHEAD MFG. CO. Ltd. 17 March, 1966, No. 11751/66. Heading F2S. A double-acting hydraulic shock absorber is of the kind in which a valved piston 37 works in an inner cylinder 10 communicating, through openings 17, with an annular reservoir 16 within an outer tube 21 and in which a piston rod 12, which slides in a guide member 26 and through a seal assembly 27, 29 of the kind described in Specification 920,959, carries subsidiary pistons 43, 45 which, at the approach of the maximum downward and upward movements of the piston 37, enter, with a reasonably fluid-tight seal, corresponding subsidiary cylinders 34, 33 which are located by annular ribs 10B, 10A at the lower and upper ends of the cylinder 10 and which are provided with leakage notches 36, 35. Each of the subsidiary pistons 43, 45 has a passage 46 controlled by a non-return resilient plate valve 47 so that, during the outward movement of the piston 43 or 45 in the cylinder 34 or 33, the valve 47 is closed and fluid can only escape from the cylinder 34 or 33 by way of the notch 36 or 35, and, during a subsequent inward movement of the piston 43 or 45, fluid can flow into the cylinder 34 or 33 past the notch 36 or 35 and also in a parallel path past the valve 47 under the restraint of the resilient force of the spring urging it towards its seating 48. The subsidiary cylinders 34, 33 may have tapered bores instead of the notches 36, 35, and each valve plate 47 may be associated with a metering disc (47A), Fig. 5, not shown, having metering notches (47B) formed therein. In a modification, Fig. 6, not shown, the upper subsidiary piston (60) generally the same as the piston 45, co-operates with a subsidiary cylinder (62) having a tapered bore and the lower subsidiary piston (61) has no valve 47 and passage 46, a valve plate (64), urged on to its seating by a spring (65), controlling a passage (66) in the base of the subsidiary cylinder (63) to allow fluid to flow from the reservoir (51) to the interior of the cylinder (63) but not in the reverse direction. In a modification, Fig. 7, not shown, a piston rod (69) which passes through a seal (70) at the lower end of a pressurized single tube (67) carries one valved subsidiary piston (73) which co-operates with a subsidiary cylinder (74) at the lower end of the cylinder (67). In another arrangement, Fig. 8, not shown, a piston rod (78) extends through a seal at the upper end of a pressurized tube (77) and carries a valved piston (81) which works in lower subsidiary cylinder (82) with a tapered bore and also a cylinder (83) which is always carried upward full of liquid to co-operate with a piston (84) at the upper end of the cylinder (77).
Patent GB-1164087-A (GB)
Title: Lubricant Level Indicator
IPC: G01F23/292
Filed: 1968-03-11
Abstract: 1,164,087. Lubricating. HERR MFG. CO. Inc. 11 March, 1968, No. 11775/68. Heading F2A. A lubricant-level indicator 12 is made of transparent material, has a body portion 14 which is received in an aperture of a cover 8 and has a portion 20 which extends into a reservoir 7. The indicator 12 is supported by means of an integral flange 16 which is urged towards the cover 8 by means of a spring ring 35, the latter being mounted in a groove 33 of the indicator. The portion 20 has an inclined face 21 which, when contacted by an upper surface 24 of the lubricant in the reservoir, forms a line 25, Fig. 1. The latter is observed through a convex surface 15 of the indicator 12 the surface 15 magnifying the line 25. The indicator 12 is located by means of an integral key 34 which is received in a keyway 36 in the cover 8, and the reservoir 7 is provided with an oil-port 40, the latter being received in an aperture in the cover 8.
Patent GB-403278-A (GB)
Title: System and apparatus for extinguishing a fire
IPC: A62C99/00
Filed: 1933-04-22
Abstract: 403,278. Fire-extinguishing. ALLEN, S. E., 560, Belmont Avenue, Newark, New Jersey, U.S.A. April 22, 1933, No. 11832. Convention date, April 23, 1932. [Class 47 (ii).] A fire-extinguishing medium liquified under pressure, such as carbon dioxide, is supplied from a source 14 to a series of jet nozzles 23 arranged in a floor 17, for example the floor of a hangar 10. The medium expands to gaseous form and is drawn up to the fire by the draught caused thereby. Each jet, Fig. 3, comprises a cylindrical casing having a hemi-spherical end wall 25 into which the jet pipe 22 opens. A spreader 27 is arranged above the pipe, and the open end of the jet is closed by a cover 24, which is thrown off by the issuing medium. In a modification, the casing is longer, the spreader is omitted, and the cover is hinged. A fireproof curtain 13 is held rolled, above the doorway 11 of the hangar, by hooks 19. When the medium is released from the source 14, part of it passes by a pipe 18 to cylinders 21 in which are pistons adapted to rock the hooks 19 to release the curtain.
Patent GB-253327-A (GB)
Title: Improvements in or relating to milking machine teat cups
IPC: A01J5/16
Filed: 1925-05-06
Abstract: 253,327. Krayenb³hl, J. C. V. May 6, 1925. Cow-milkers.- In milking-machine teat cups having a hollow part O<1> containing two diaphragms H, K forming with a casing ]V[ a chamber in which is a piston or plunger B, the part 0' having the suction nozzle 0, the edge of the diaphragm H is turned downwardly to cover one or more openings h through which the chamber is evacuated, the communication between the chamber and the suction pipe being for practical purposes a one-way one. Packing R is arranged about the down-turned edge of the diaphragm.
Patent GB-467530-A (GB)
Title: Improvements in scissors, garden shears, and like implements
IPC: A01G3/02
Filed: 1936-10-02
Abstract: 467,530. Hand shears. CLARKE, G. Oct. 2, 1936, No. 11861. [Class 30] One of the blades is serrated and taper bevelled on both sides, the apices of the teeth lying on the line F-F.
Patent GB-179532-A (GB)
Title: Process for the production of iron and steel by the direct treatment of ores freed from gangue
IPC: C21B13/14
Filed: 1922-04-27
Abstract: 179,532. Constant, G., and Bruzac, A. May 9, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Extracting.-A process for the manufacture of iron and steel consists in the direct treatment of ores from which all or part of the gangue is removed with the object of preventing the formation of slag. The ore is crushed, washed to remove all or part of the gangue, dried, and reduced in a closed vessel by a reducing-gas. The metal is transferred to a, melting-furnace without contact with the air with or without the addition of corrective agents such as lime &c., a non-oxidizing atmosphere being maintained in the furnace. The ore may be reduced prior to the removal of the gangue.
Patent GB-393737-A (GB)
Title: A new or improved shoe
IPC: A43B13/34
Filed: 1932-04-26
Abstract: 393,737. Boots &c. HALDINSTEIN, G. E., (trading as HALDINSTEIN & SONS, P.), Queen Street, Norwich. April 26, 1932, No. 11949. [Class 17 (ii).] The lower edges c of the upper a of a boot or shoe meet or lap in the waist b and the sole d at the waist is reduced in width to a narrow strip to cover the seam. The insole is made of normal size in the forepart and waist. A heel with a narrow breast conformng to and covered by an extension of the sole d may be employed, or the rear end of the sole may be widened to normal width to cover the breast of a heel of normal size.
Patent GB-647103-A (GB)
Title: Manufacture of copperable disazo dyestuffs
IPC: C09B33/153
Filed: 1948-05-01
Abstract: Copperable diazo dyestuffs are manufactured by coupling 1 mol of a di-acetoacetyl derivative of an unsulphonated 4 : 41-diaminodiphenyl compound suitable for use in building up substantive azo dyestuffs and optionally further substituted, in the 3 : 31-positions, by the usual simple substituents found in azo dyestuffs (e.g. alkyl or alkoxy groups or halogen atoms) with, in either order, 1 mol. each of an o-hydroxy-diazo compound of the benzene series and of the diazo compound of an amine of the general formula <FORM:0647103/IV (c)/1> wherein A represents an aryl radical of the benzene series and X a group capable of forming metal complexes (e.g. a hydroxy, carboxyl, alkoxy or carboxymethoxy group), the components being so chosen that the products contain at least one sulphonic acid group or two carboxyl groups in the molecule.  The products yield yellow dyeings on natural or regenerated cellulose fibres by after-coppering in the dye-bath or in a separate bath.  Preferred dyestuffs are those containing a single sulphonic acid group, such as those from o-aminophenolmonosulphonic acids (especially 6-acylamino-2-aminophenol-4-sulphonic acids) and unsulphonated o-aminoanthranilic acids (especially 5-acetylamino- or 5-benzoylamino-2-aminobenzoic acid) or from unsulphonated o-aminophenols and anthranilic monosulphonic acids, and also the symmetrical disulphonated dyestuff from 2 mols. of 6-benzoylamino-2-aminophenol-4-sulphonic acid.  Examples and a table illustrate the production of dyestuffs of these preferred types and also unsulphonated dyestuffs containing a carboxyl group in each diazo component, and the dyeing of cotton golden yellow with the dyestuff 6-benzoylamino - 2 - aminophenol - 4 - sulphonic acid --> 4 : 41 - di - (acetoacetylamino) - 3 : 31 - dimethoxydiphenyl \sM 2 - aminophenol - 4 - methylsulphone from a bath containing sodium carbonate and sodium sulphate, with after-treatment in a fresh bath containing copper sulphate and acetic acid.  Specification 394,981 is referred to.
Patent GB-939864-A (GB)
Title: Heat exchanger tube
IPC: F28F1/36
Filed: 1961-04-04
Abstract: 939,864. Making heat-exchanger tubes. G. SCHOLL. April 4, 1961 [April 4, 1960], No. 11989/61. Classes 83 (2) and 83 (4). [Also in Group XIII] A heat-exchanger tube is welded at its points of contact with the insides of individual turns of a deformed coil-spring. As shown, the coil spring 12 is deformed by electrodes 13, 14 until it touches the tube 11 at diametrically opposite points whereupon an electric current is passed between the electrodes and the elliptically deformed spring is welded to the tube. The points where the springs is welded to the tube all lie on straight lines parallel to the axis of the tube. Successive sets of points may be welded by advancing the tube with the spring or springs axially. The convolutions of the spring may be flattened and alternate ones may tilt in opposite directions (Fig. 3, not shown), the electrodes having grooves which are alternately inclined in opposite directions for this purpose. The convolutions may be deformed to a triangular form (Fig. 4, not shown).
Patent GB-560461-A (GB)
Title: Improvements in beams for use in building construction
IPC: E04C3/292
Filed: 1942-08-27
Abstract: 560,461. Girders and beams. WORTHINGTON, W. J., and BODGER, F. W. Aug. 27,1942, No. 12062. [Classes 20 (ii) and 20 (iv)] A beam comprises a one-piece length of metal or moulded material 11 of tubular or trough form carrying a strip of wood, fibre or other material into which nails or screws can be driven to secure floor boards 16 or the like. In Fig. 1, the wood strip 14 is held between inwardly directed channel portions 13 in which it may be secured by nails. The beams may be connected by sleeve-like members 17 attached by screws. In Fig. 4, the upper edges of the sides 22 are bent inwardly to form beads 24 supporting a recessed wood member 25 which is secured by nails. The wood member 33 in Fig. 6 is held vertically between inwardly and downwardly bent portions 31, 32 of the channel member 11.
Patent GB-380400-A (GB)
Title: Improvements in or relating to tobacco spreaders for use in cigarette-making machines
IPC: A24C5/39
Filed: 1932-04-27
Abstract: 380,400. Cigarette-inaking machines. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MœLLER & CO., 48, Zwickauerstrasse, Dresden, Germany. April 27, 1932, No. 12104. Convention date, April 20. [Class 130.] The channel 9 of a machine of the continuousrod type is supplied by more than one spreader the members of which are driven at different speeds. Bevel gearing 13, 14, 13<1>, 141 of differing transmission ratios, or variable speed gearing, may be used. Oscillating walls 10 keep the tobacco moving.
Patent GB-623388-A (GB)
Title: Improvements in distilling and rectifying apparatus
IPC: B01D3/30
Filed: 1946-04-18
Abstract: <PICT:0623388/III/1> The plates of a multiple-plate distillation and rectification column comprise fixed annular parts c with a wide central orifice a bounded by strips b to limit the height of the liquid on the plates and by the cylindrical sheets e, and movable discs h attached to a central vertical shaft i which bear on their lower faces devices g, as for example one or more layers of netting, having a large surface.  The shaft is given a reciprocating motion and, if desired, a rotary movement and thus the devices alternately dip into the layer of liquid on the fixed plates below so impeding the passage of the ascending vapours, and then rise to allow the vapours to pass over the wetted devices.  The plates are surrounded by a lagged cylinder f and may be spaced therefrom by packing d.  The discs h may be furnished with flat tubes, as stiffeners, through which part of the liquid may flow and escape the vapours or, for the same purpose the central orifice of the fixed plates c may be other than circular.  Each of the plates c is provided with a siphon tube for cleaning purposes after distillation.  The column of plates may be of very small height, and in an example of its operation a mixture of benzene and toluene was rectified in a column with a height of 150 cms. and containing 50 plates.  The column may be employed in vacuum distillation and in continuous or discontinuous working and may be used for washing industrial gases.
Patent GB-418743-A (GB)
Title: Transferring apparatus for incompletely solidified glass bottles and the like
IPC: C03B35/12
Filed: 1933-04-25
Abstract: 418,743. Glass manufacture. LHOEST, L., 139, Avenue Van Praet, Merxem-lez- Anvers, Belgium. April 25, 1933, No. 12115. Convention date, April 25, 1932. [Class 56.] A device for removing bottles and the like from the finishing mould of a forming machine consists of a gripping device which is moved in a straight line, before being swung about a vertical axis, in order to carry a bottle clear of the mould. The gripping device 3 consists of a pair of movable jaws 5, 6 pivoted on an arm or carrier 8 which is secured to a carriage 17 that slides along an horizontal guiding-arm 9. A pneumatic cylinder 14 is also mounted on the guide 9 which is secured to the upper end of a vertical shaft 10 that is oscillated by any suitable mechanism. The jaws 5, 6 are closed by a spring 25 and are opened by a rod 20 which slides through the arm 8. A pusher 16, secured to the piston rod 26 of the cylinder 14, slides inside the carriage 17 and during its movement engages and moves the end of the rod 20. In operation, the movement of the piston rod 26 causes the pusher 16 to move inside the carriage 17 until it makes contact with one or the other of the end walls. Continued movement of the rod then moves the carriage along the guide 9. The lost motion between the pusher and the carriage causes the end 21 of the rod 20 either to open the jaws 5, 6 or allow them to be closed by the spring 25, the opening or closing taking place before the carriage moves along the guide. The device is shown with the gripper closed on the neck of a bottle 1 which rests on the bottom 2 of a finishing mould of a forming machine. From this position, movement of the piston rod moves the carriage 17 along the guide 9 in the direction indicated by the arrow A and carries the bottle clear of the open halves of the mould. The shaft 10 then rotates and swings the bottle over a receiver 4 on a rotating table 12. The reverse movement of the piston rod 26 then opens the grippers and moves them away from the bottle, the rod 10 being lifted by any suitable mechanism in order to raise the grippers above the bottle in the receiver 4. The shaft 10 then rotates in the reverse direction and swings the grippers towards the position shown.
Patent GB-1193645-A (GB)
Title: Improvements in or relating to Wet-Table Coatings.
Inventor: ENGLISH FRANCIS GUY SYDENHAM
IPC: B28B7/38
Filed: 1966-08-05
Abstract: 1,193,645. Coated moulds. F G. S. ENGLISH. 29 June, 1967 [5 Aug., 1966; 15 March, 1967], Nos. 35087/66 and 12116/67. Heading B2K. [Also in Divisions B5 and C3] A compression mould e.g. of wood, metal or plastics, for the production of ceramic or cement 'based products e.g. bricks, is provided with increased wettability at the moulding surface thereof by an intgral layer containing a finely divided hygroscopic material in a synthetic resin matrix to facilitate release of the moulded article from the mould and the application to the moulding surface of a dressing layer, e.g. of sand for incorporation into the surface of a brick and which also acts as a release coating. The hygroscopic material comprises powdered silica gel or wood flour and is preferably applied to the moulding surface by spraying in a liquid vehicle comprising a synthetic resin solution in a volatile solvent which is allowed to set .by evaporation of the solvent. Alternatively, the hygroscopic material e.g. wood flour with a nitrocellulose resin/solvent vehicle, may be incorporated into the resin forming the moulding surface of a plastics mould as in a glass reinforced polyester mould. Examples are given of compositions suitable for spray application comprising, (1) wood flour, cellulose nitrate and mixed acetone/toluene/ ethanol/isopropyl alcohol/thinner. Alternatively the liquid vehicle may comprise a nitrocellulose dope incorporating an alkyd gum, dibutyl phthalate and cellulose thinner of butyl acetate/ethyl acetate, butanol, acetone, toluene/ xylene. For a harder surface, a cold setting melamine resin may be used either as the liquid vehicle or as a constituent thereof. The metal moulds are preferably aluminium or stainless steel or a ferrous metal provided with a cadmium plated surface.
Patent GB-494679-A (GB)
Title: A process for protecting the internal surfaces of reservoirs, pipes and other apparatus coming into contact with liquid fuel
Filed: 1937-04-28
Abstract: The inner surfaces of tanks and pipes holding and conveying liquids such as benzine, benzene and methanol are coated with cement which is allowed to harden in a moist atmosphere and which is then treated with soluble salts of fluosilicic acid forming insoluble fluorides with the coating.