baber/WOPTO huggingface dataset:
Patent GB-473884-A (GB)
Title: Process for the manufacture of acid wool dyestuffs of the anthraquinone series
IPC: C09B1/34
Filed: 1936-03-16
Abstract: 1-Amino-4-halogenanthraquinone-2-sulphonic acids are reacted with such aniline derivatives as contain in the nucleus in m- and/or p-position to the amino group two representatives which need not be unlike in type of the following substituents; acetylamino groups, carbonamide groups, and the nitrile group. Alternatively, the 1 - amino - 4 - halogenanthraquinone - 2 - sulphonic acids may be reacted with such m- or p-phenylene diamines as contain in the nucleus in m- or p-position to one of the amino groups only one of the said substituents, the free amino group in the benzene nucleus being subsequently acetylated. Starting materials specified are 1-amino-4-bromanthraquinone-2-sulphonic acid on the one hand, and 1-amino-4-acetylamino benzene-3-carboxylicacid dimethylamide, 1-aminobenzene-3.5-dicarboxylic acid dimethylamide, or 1-amino-3-acetylamino-4-cyanbenzene on the other hand.  The reaction is preferably performed in an aqueous medium with the addition of an acid-binding agent and a copper salt.  The products dye wool from an acid bath red to greenish-blue shades.  In examples: 1-amino-4-bromanthraquinone-2-sulphonic acid is condensed in presence of sodium or potassium bicarbonate and cuprous chloride in water with (1) aminobenzene-3.5-dicarboxylic acid dimethylamide or aminobenzene - 3.5 - dicarboxylic acid monomethylamide; (2) 1-amino-4-acetylamino-3-carboxylic acid dimethylamide; (3) 2.4-diaminobenzene nitrile, followed by acetylation.  Specifications 10378/14, 302,928, 332,203, [all in Class 2 (iii)], 342,706, and 383,871 are referred to.
Patent GB-986814-A (GB)
Title: Method for forming resin foams
IPC: C08J9/14
Filed: 1962-03-01
Abstract: A process of forming a resin foam comprises introducing into a zone of agitation liquid polymerizable resin-forming ingredients comprising a >CH = CH2 monomer and a polyester of a glycol or dihydric alcohol and of an alpha-beta ethylenically unsaturated dicarboxylic acid, a curing agent for the ingredients, and a blowing agent soluble in the ingredients, said blowing agent being adapted to be absorbed in the mixture at relatively high pressures and at relatively low temperatures, but being adapted at lower pressures and higher temperatures to produce foaming, the introduction of the ingredients into the zone of agitation being at a temperature and under a pressure sufficient to maintain the blowing agent in solution without appreciable bubble formation, ejecting the mixture from the zone of agitation into a zone at the pressure of foaming and allowing the material to foam and cure, the material being ejected through a pressure reduction zone have a sufficiently low ratio of depth to diameter that the formation of bubbles in the mixture is substantially inhibited until the mixture has essentially escaped from the pressure reduction zone into the zone of lower pressure. The blowing agent may be a chlorofluorocarbon. The reaction may also generate a gas, such as carbon dioxide, which under the conditions in the zone of agitation is also absorbed in the resin-forming components.  In the example the unsaturated polyester is prepared by reacting isophthalic acid, triethylene glycol and maleic anhydride. For storage it is mixed with a gelation inhibitor, e.g. hydroquinone, 3-isopropyl-catechol or tertiary butyl catechol, or a quaternary ammonium salt, e.g. trimethyl benzyl chloride or diisobutylphenoxyethoxy ethyl dimethyl benzyl ammonium chloride, or copper naphthenate.  Mixed with polystyrene it gives an interpolymerizable mixture. To it may be added emulsifiers or flameretardants such as chlorinated wax.  Foam stability is improved by adding an organic acid, e.g. fumaric or maleic.  Such a mixture is passed to a suitable mixing apparatus (see Division B1) having a shearing effect in which it is mixed under pressure with a mixture of CC12F2, CC13F and methyl ethyl ketone peroxide (or benzoyl peroxide or cumene hydroperoxide) (to which carbon dioxide may be added) dissolved in dimethylphthalate, added at a lower level in the mixing chamber.  Foaming and the gelling and setting of the resin take place after the discharge from a suitably proportioned orifice, and may be accelerated by heating, e.g. at 100 DEG  to 250 DEG  F.
Patent GB-609446-A (GB)
Title: Improvements in or relating to the rotors of gas turbines or the like
IPC: F01D5/30
Filed: 1946-03-14
Abstract: 609,446. Turbine blades. PARSONS & CO., Ltd., C. A., and GARDNER, F. W. March 14, 1946, No. 7998. [Class 110 (iii)] Each blade is secured between teeth which lie parallel or substantially parallel to the axis of the rotor, and either or both the blade roots and the rotor teeth are bifurcated. The blade roots f and the rotor teeth e are bifurcated by means of slits c, terminating in circular holes d to avoid stress concentration. Further slits may be provided in the rotor between the teeth.
Patent GB-550322-A (GB)
Title: Improvements in the manufacture of piston and other rings
IPC: C21D9/40
Filed: 1941-06-26
Abstract: 550,322. Heat treating piston &c. rings. CROSS, R. C., and CROSS MANUFACTURING CO. (1938), Ltd. June 26, 1941, No. 8028. Addition to 535,496, [Group XXII] [Class 72] [Also in Group XXII] After piston and other rings have been manufactured from wire as described in the parent Specification, they are tempered and gapped by placing a row of rings which are made substantially circular in form and with their ends abutting, or nearly so, on a mandrel furnished with a distance piece to hold the ring ends a requisite gapping distance apart, and applying pressure to clamp and flatten the rings together in the axial direction, the rings then being tempered in situ to a degree sufficient to cause them to assume the gapped shape as their normal shape. Circular rings are slipped over a cylindrical mandrel 1 as at 2 with their ends maintained apart by a distance piece 3, and are pressed together axially by screwing on the threaded nut or collar 4 which forces them against a collar 5 fixed or formed on the end of the mandrel. The rings are then tempered on the mandrel.
Patent GB-550234-A (GB)
Title: Improvements in epicyclic gearing suitable for the control of adjustable condensers
IPC: H03J1/14
Filed: 1941-06-27
Abstract: 550,234. Epicyclic friction gearing. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and SMITH, S. R. June 27, 1941, No. 8081. [Class 80 (i)] [Also in Group XXXVI] Relates to epicyclic gearing suitable for adjusting variable condensers in which the drive is transmitted by a series of balls retained in position between two frusto-conical cups urged together by spring pressure. According to the invention the two cups are assembled by a press operation, and the spring is placed in position after such operation. The knob 1 is secured to a shaft 2 having a double-conical portion 3 forming a seating for balls 4. A ball cage 7 is secured by a screw 8 to a spindle 5 carrying the vanes 6. The balls engage frusto-conical portions of cups 9, 10 and cup 9 has a slotted projection 13 engaging a post on the mounting plate. The cup 10 is placed inside the cup 9 lugs 14 on which are then bent over by a press operation. A fivearmed spring washer 11 is then inserted by being pressed down and rotated through a small angle so that the arms 12 engage beneath the lugs 14. The points of the arms are preferably turned up at 15 to give a locking effect. Three or four balls may be used.
Patent GB-514941-A (GB)
Title: Cast iron alloy and method of producing same
IPC: C22C37/04
Filed: 1938-03-16
Abstract: 514,941. Alloys; annealing SPARLING, W. J. March 16, 1938, No. 8170. Drawings to Specification. [Classes 72 and 82 (i)] Cast iron containing 0.5 per cent. or more of copper and 0.6 per cent. or more of manganese is subjected to heat-treatment above and below the critical range in order to produce uniformly distributed spheroidized cementite, and is further heat-treated within the critical range to cause some or all of the spheroidized cementite to migrate to the ferrite grain boundaries. The upper limits of copper and manganese may be 1.5 and 1.1 per cent. respectively, and the heat-treatment may comprise heating to 1,600- 1,800‹F., quenching to below the critical temperature, reheating to 1,250-1,300‹F., and further heating at 1,325-1,360‹F. U.S.A. Specification 2,008,452 is referred to.
Patent GB-1164534-A (GB)
Title: Production of Di-N-Methylamides
Inventor: DUFFY LOUIS LLOYD
IPC: C07C233/00
Filed: 1967-02-21
Abstract: 1,164,534. Preparation of dimethylamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 Feb., 1968 [21 Feb., 1967], No. 8262/67. Heading C2C. Di-N-methylamides are produced by reacting dimethylamine with an ester RCOOR<SP>1</SP>, in which R and R<SP>1</SP> are alkyl groups, in a medium which comprises as catalyst a strongly alkaline alkali metal compound, converting the alkali metal compound if other than hydroxide to the hydroxide by adding water and distilling the product in the presence of said hydroxide to recover the di-N-methylamide. The alkali metal compound is preferably NaOH but NaOCH 3 , NaOC 2 H 6 , KOC 2 H 5 , NaOC 3 H 7 , LiOC 3 H 7  or NaNH 2  are also suitable. The reaction medium may contain ethylene glycol, propylene glycol or propane-1,3-diol which are recovered after the distillation and purified by an ion-exchange resin. In the examples, dimethylamine is reacted with methyl acetate in the presence of NaOH or disodium ethylene glycollate, and also with methyl propionate in the presence of NaOH to give dimethyl acetamide and dimethyl propionamide.
Patent GB-387527-A (GB)
Title: Improvements in or relating to evacuating and ventilating arrangements for water-closets
IPC: E03D9/052
Filed: 1932-03-21
Abstract: 387,527. Flushing, discharging, and ventilating closets, lavatory basins, &c. POLO, L., 1, Rue des Photographes, Geneva, Switzerland. March 21, 1932, No. 8336. Convention date, March 23, 1931. [Class 26.] A closet is discharged and ventilated by means of an electric fan l, Fig. 1, which communicates with the discharge outlet f by means of a conduit k normally closed by a flap h. When a handle e is lowered, a cock is opened to flush the basin from a pipe c, and on further lowering of the handle, the fan is started to compress the air in the conduit k and thus to move the flap h to close the basin outlet j, and to discharge the outlet trap. The fan motor is controlled by a mercury switch s. Fig. 3, tilted by the handle, which is restored to normal position under the action of a spring t ; an oil brake x is provided to control the duration of operation of the ventilator and of passage of the flush, the arrangement being such that the flush continues after the opening of the fan circuit, to pass by means of grooves v to reform the seal of the discharge trap. The fan housing may be integral with or independent of the closet &c. basin, and the grooves v may be replaced by a single groove or by a conduit. The Specification as open to inspection under Sect. 91 also states that the invention may be applied to lavatory basins. This subject-matter does not appear in the Specification as accepted.
Patent GB-793353-A (GB)
Title: Improvements in and relating to the manufacture of cathode ray tubes for colour television receivers
Inventor: FLEMING-WILLIAMS BRIAN CLIFFOR
IPC: H04N9/24
Filed: 1954-10-11
Abstract: 793,353. Colour television tubes. SYLVANIATHORN COLOUR TELEVISION LABORATORIES, Ltd. Oct. 6, 1955 [Oct. 11, 1954], No. 8345/57. Divided out of 793,351. [Group XL(b). Class 39(1). A cathode-ray tube screen made up of repeating groups of parallel stripes of materials which fluoresce in different colours is formed on the inner surface of the end wall of the tube by a method in which (1) the stripes are first formed on a thin base, such as nitro-cellulose, for example by a printing process, (2) the printed base is settled on the end wall, with the side bearing the fluorescent materials facing the wall, by a flotation process, for example using water, surface tension serving to pull the fluorescent materials into intimate contact with the wall, and (3) the base is removed by dissolving it by means of a suitable solvent or by heating during the vacuum bake of the tube.
Patent GB-375775-A (GB)
Title: Improvement in pressure control mechanism
IPC: F04B49/02
Filed: 1931-03-19
Abstract: 375,775. Fluid - actuated valves. CASERTA, M. A., 1511, Glynn Court, Detroit, Michigan, U.S.A. March 19, 1931, No. 8454. Convention date, March 19, 1930. [Class 135.] A device for controlling fluid-pressure devices, such as air compressors, comprises a movable element effecting the control of the device and acted upon independently by the pressure in a reservoir of the device and the pressure in a pipe line leading to the reservoir, these pressures acting in the same direction on the element. Fig. 1 shows the element as a rod 3 to which are connected diaphragms 2, 8 subject to the pressures in the reservoir 1 and in a supply pipe 12 ; the rod is adapted to open a valve 11 and thus allow the pipe 12 to discharge to atmosphere. Fig. 6 shows a modification in which the reservoir and supply pipe pressures act on bellows 2, 8 which jointly control a lever 18 acting by a spring on a lever 41 constituting the movable element ; this lever controls the engagement of gears on a driving shaft 43 and a shaft driving the compressor 45 which supplies the reservoir.
Patent GB-125528-A (GB)
Title: Improvements in Distilling Oil from Coal and the like.
Inventor: WISE WILLIAM HENRY
IPC: C10G1/02
Filed: 1918-05-24
Abstract: 125,528. Wise, W. H. May 24, 1918. Retort furnaces; charges, agitating and conveying.-Relates primarily to means for raking and turning over material in retorts for distilling oil from coal, shale, &c., and comprises a reciprocating frame m running upon rails within the retort, which frame is furnished with spades, diggers or hoes s pivoted on cross shafts and provided with counterweights b linked together by a catch-bar V. During the forward movement of the frame, the spades s abut against stops p on the frame and carry the material forward until a catch K on the bar V engages a stop t causing the spades to tilt and turn over the material. The spades swing over the material upon the return stroke. The frame may be reciprocated by an hydraulic ram H, Fig. 3, assisted by a counterweight w, Fig. 1, which may operate the feeder d through sprocket gearing. As shown, the retort is in the form of a rectangular oven beneath which are heating-flues f, formed of hollow porcelain blocks, communicating with a combustion chamber c, Fig. 3. Air enters at a, Fig. 1, and passes through preheating-passages in the walls of the oven and enters the chamber c, Fig. 3, at A. The residual gas from the retort is supplied to the chamber c, entering it at G after traversing preheating passages formed in hollow blocks beneath the flues f. A small producer furnace u is provided at one end for starting. The spent material passes through a rotary discharger to a bin r.
Patent GB-214425-A (GB)
Title: Improvements relating to the manufacture of golf and other playing balls
IPC: B29C63/00
Filed: 1923-03-27
Abstract: 214,425. Martin, P. A., and Stanley, J. March 27, 1923. Moulding balls.-The cover of a golf ball is secured to the core 6 by forming it in isolated masses 7 concentrated at two or more points on the surface of the core, which is placed in a mould of slightly larger size, the substance of the cover then being rendered plastic and caused to spread over the core. The mould may consist of two dies 1 locked together by a collar 8 and provided with plungers 3, which are operated by a press, as shown in Fig. 1, or of two dies 11 mounted in a sleeve 12, a key 14 serving to keep the dies in alignment, as shown in Fig. 5.
Patent GB-492672-A (GB)
Title: Photographic printing process
IPC: G03C7/28
Filed: 1937-03-24
Abstract: 492,672. Photographic printing processes. CASPAR, B. March 24, 1937, No. 8651. Convention date, March 24, 1936. [Class 98 (ii)] Printing is effected by coloured light onto a layer sensitive to such light using as master image an image recorded in two dyestuffs each of which transmits light in a region in which the other absorbs light, the transition from light to shade in the image being produced by variation of the density of the dyestuffs one of which increases as the other decreases. For example, the image shown in the Figure consists of a central square surrounded by a series of frames, the square being coloured green and succeeding frames coloured with a decreasing proportion of green and an increasing proportion of red, the outermost frame being red. When printed by red light on red-sensitive material, an image is produced in which the green parts are transparent, e.g. a positive of the original image, whereas printing with green light on green-sensitive material gives an image in which the red parts are transparent, e.g. a negative. The image may be used (a) for producing trick films by varying the colour of the printing light in successive sets of frames or within a single frame ; (b) producing similar images to the original but in different colours ; (c) producing colour change effects in films ; (4) eliminating unwanted images in printing from colour record images on multicolour stock. The last process is carried out by using in place of an image coloured, for example, blue-green, an image coloured as above in bluegreen and yellow. When printing from a magenta image in an adjacent layer using green light, the yellow colour which slightly absorbs the light compensates for the slight absorption of the light by the blue-green image. The master images may be produced by dyetoning, chemical toning, dye-destruction, or colour development processes or by combinations of these. Specification 472,981 is referred to.
Patent GB-649516-A (GB)
Title: Process of manufacturing synthetic tannin from aromatic sulphonic acids
IPC: C14C3/20
Filed: 1947-04-01
Abstract: A synthetic tanning agent is made by condensing a sulphonic acid of a novolak prepared from phenol, cresols, their homologues, or naphthols with a compound which contains in the molecule an active methylol group and an amino group and which is made by reacting urea and/or thiourea and ammonia together with an aldehyde in acid solution.  In an example, a compound which has the probable formula OH-CH2-NH-CO-NH-CH2-NH-CO-NH-CH2 -NH2+ 1/2 H2SO4 is prepared by mixing formaldehyde solution, aqueous ammonia and sulphuric acid, heating to 70 DEG  C., adding urea solution gradually and continuing heating. The product is then reacted in the presence of formic acid with a product obtained by sulphonation of a novolak prepared by reacting, in acid medium, phenol and formaldehyde in the approximate molar ratio of 2 : 1.  More formic acid is added.  As a modification, phenols, phenolic resins, lignin sulphonic acids or other sulphonic acids may be admixed with the novolak sulphonic acid starting material.  The products may be used in the free state, buffered, or as their ammonium, sodium, chromium or aluminium salts, to which formic or oxalic acid may be added. Specification 644,451 is referred to.ALSO:A synthetic tanning agent is made by condensing a sulphonic acid of a novolak prepared from phenol, cresol, their homologues, or naphthols, with a compound which contains in the molecule an active methylol group and an amino group and which is made by reacting urea and/or thiourea and ammonia together with an aldehyde in acid solution.  In an example, a compound which has the probable formula <FORM:0649516/IV (b)/1> is prepared by mixing formaldehyde solution, aqueous ammonia, and sulphuric acid, heating to 70 DEG  C., adding urea solution gradually and continuing heating.  The product is then reacted in the presence of formic acid with a product obtained by sulphonation of a novolak prepared by reacting, in acid medium, phenol and formaldehyde in the approximate molar ratio of 2 : 1. More formic acid is then added.  As a modification, phenols, phenolic resins, lignin sulphonic acids or other sulphonic acids may be admixed with the novolak sulphonic acid starting material.  The products may be used in the free state, buffered, or as their ammonium, sodium, chromium or aluminium salts to which formic or oxalic acid may be added.  Specification 644,451, [Group IV (a)], is referred to.
Patent GB-661238-A (GB)
Title: A device for easy separation of boxes used in beehives
IPC: A01K47/06
Filed: 1949-03-31
Abstract: 661,238. Bee-hives. MOBBS. H. A. Aug. 10, 1949 [March 31, 1949]. No. 8738/49. Class 5(ii) Hive-lifts which are waxed together are separated by turning rollers a which have eccentric portions and are mounted beneath the base of each wall.
Patent GB-1465976-A (GB)
Title: Medicale electrode
IPC: A61N1/05
Filed: 1974-02-27
Abstract: 1465976 Medical electrodes S R LEHR 27 Feb 1974 [27 Feb 1973] 8783/74 Heading A5R A medical electrode, in particular for pacemakers, is formed to facilitate attachment to and detachment from a part of the body and comprises two hooks 4 which are movable towards and away from each other and each have a tapered tip portion which portions overlie each other when the hooks are in a closed position. The hooks are carried by resilient legs 3 which are positioned within a compression spring 5 located within a cable 2 and insulator 1 to hold the hooks closed. The legs are displaced from the cable by means of a stylet inserted axially therealong, the hooks springing apart as the legs are displaced due to the resilience of the legs. In the embodiment of Fig. 2 the hooks 8 are closed due to the resilience of the legs 13 and are opened by a spreader member 9 being drawn into cable 11 against the action of spring 10. The legs may be integrally connected and may have weakened zones to increase their resilience.
Patent GB-381096-A (GB)
Title: Device for use in golf holes for putting greens
IPC: A63B57/00
Filed: 1932-03-24
Abstract: 381,096. Golf cups for holes. HERBERT, A. F., 6, West Smithfield, London. March 24, 1932, No. 8792. [Class 132 (ii).] A device for use in golf holes for putting greens comprises a cylindrical liner 2 provided with an inner removable cup-shaped member 5 that may be removed and replaced in inverted position (i.e. the position shown) so that its base 6 is held in substantially the same plane as the ground encircling the hole for the purpose of forming a cover for the hole. When acting as a cover the cup-shaped member rests on lugs 8 pressed inwardly from the liner, but in its normal position the base 6 rests on a cross-bar 3, the lugs passing through apertures 9 in the member, so that the mouth of the member is flush with the mouth of the liner. The lower edge of the liner is serrated for the purpose of cutting the hole in the green. Apertures are formed in the cup-shaped member and in the cross-bar to receive the flag pin.
Patent GB-1006026-A (GB)
Title: Improvements in and relating to clothes hoists
IPC: D06F57/02
Filed: 1963-03-05
Abstract: 1,006,026. Sockets for posts. HILLS HOISTS Ltd. March 5, 1963 [March 5, 1962], No. 8824/63. Heading E1B. [Also in Division A4] A rotatable clothes hoist 10 has a stem 11 insertable in a socket 12 in a floor 13, the socket being made from two havles 14 joined by rivets 15, 16. A sheet metal cover being hinged on one rivet 15 and a trigger 24 being hinged on the other rivet 15 and being engageable with a retaining ring 27 on stem 11. Bearing pads 33, 40 are provided.