baber/WOPTO huggingface dataset:
Patent GB-452177-A (GB)
Title: Process for producing fast printings on the fibre
IPC: D06P1/12
Filed: 1935-07-12
Abstract: The process described in the parent Specification comprising printing textile materials consisting of or containing cellulose with a mixture of coupling component and an alkali or an alkali salt of a coupling component, a suitable diazotizable primary amine and an alkali nitrite, drying the material, passing through acid at ordinary temperature for the purpose of producing diazotization and then through an agent which binds acid to produce coupling, is modified by using as the coupling component a condensation product of an o-oxycarboxylic acid arylide with formaldehyde.  These printings may similarly be combined with the production of other dyes, for example, Aniline Black, or effects with vat dyes or their leuco sulphuric esters.  In examples: (1) 4.4<1>-dichloro-2-amino-1-1<1>-diphenyl ether, or the sodium salt of the condensation product (the preparation of which is described) of formaldehyde and 2-3-oxynaphthoic acid-2<1> methoxyanilide and sodium nitrite are made into a paste with sodium hydroxide, turkey red oil, glycerine and starch tragacanth; material is printed with this colour, dried, passed through aqueous hydrochloric acid and then through aqueous sodium carbonate or bicarbonate (red shade); (2) a mixture of 4.4<1>-dichloro - 5 - acetylamino - 2 - amino -1.1<1>-diphenylether, the condensation product of formaldehyde and 2.3-oxynaphthoic acid-4<1>-ethoxyanilide and sodium nitrite are made into a paste as in (1), the material printed therewith, dried, passed through aqueous hydrochloric acid containing sodium chloride and then through a chamber of ammoniacal vapours (Bordeaux-red); (3) a mixture of 4<1>-chloro-4-carbethoxy-2-aminodiphenylether, the condensation product of formaldehyde with 2.3-oxynaphthoic acid-2<1>-methoxyanilide, sodium nitrite, sodium hydroxide and sodium acetate is made into a paste with urea, turkey red oil, and starch tragacanth thickening, and material is printed therewith and subsequently treated as in (1), the red dyeing being alternatively developed by removing acid by means of water or ammonia; (4) A printing colour is made from a mixture of 4-(2<1>-methyl) -phenoxyacetylamino-2.5-diethoxy-1-aminobenzene, the formaldehyde compound of 2,3-oxynaphthoic acid-m-chloranilide, sodium nitrite, sodium hydroxide and sodium acetate and a mixture of 4,4<1>-dichloro-2-aminodiphenylether, the formaldehyde compound of 2,3-oxynaphthoic acid o-anisidide, sodium nitrite, sodium hydroxide and sodium acetate, and is made into a paste with alcohol, urea, turkey red oil and starch tragacanth thickening; material is printed therewith, dried, passed through rollers effecting impregnation with hydrochloric acid, and then through a sodium bicarbonate solution whereby blue and red effects are obtained.  The Specification as open to inspection under Sect. 91 referred to the use in the foregoing process of the condensation product of a coupling component with formaldehyde, but this subject-matter does not appear in the Specification as accepted.
Patent GB-736416-A (GB)
Title: Manufacture of cobaltiferous azo-dyestuffs
IPC: C09B45/20
Filed: 1952-08-07
Abstract: The invention comprises cobalt compounds containing one atom of cobalt in complex union with more than one molecule of one or two monoazo dyestuffs, free from sulphonic and carboxylic acid groups, of the general formula <FORM:0736416/IV (c)/1> (wherein R represents an aromatic residue of the benzene series free from sulphonic acid amide groups but containing a hydroxy group in ortho-position to the azo linkage and also a nitro group), the preparation thereof by appropriate treatment of one or two dyestuffs of the said kind with an agent yielding cobalt (e.g. a simple cobalt salt or a complex cobalt compound), and the dyeing of nitrogenous fibres (especially wool or fibres of superpolyamides or superpolyurethanes) therewith from a weakly alkaline to neutral to weakly acid (e.g. acetic acid) bath.  In examples, the following dyestuffs are dissolved in dilute caustic soda solution and heated with a solution of cobalt sulphate: (1) 5-nitro-2-aminophenol-->1-acetylamino-7-naphthol; (2) 6-acetylamino-4-nitro-2-aminophenol-->1-acetylamino- or 1-n-butyrylamino-7-naphthol; (3) a mixture of the dyestuff of (1) and the first dyestuff of (2).  In a further example, wool or nylon is dyed greyish green-blue with the product of (1) from a bath containing sodium sulphate, with or without the addition of acetic acid.  Additional components specified for the preparation of the initial monoazo dyestuffs are: diazo components: 4-nitro-, 5- and 6-nitro-4-chloro-, 6-nitro-4-methyl-, 6-nitro-4-acetylamino-, 4 : 6-dinitro- and 4-nitro-6-chloro-2-aminophenol, and 5-nitro-3-amino-4-hydroxyacetophenone; coupling components: 1-formylamino-, 1-propionylamino-, 1-benzoylamino-, and 1-benzene-and p-toluene-sulphonylamino-7-naphthol, and 7-hydroxynaphthyl-1-carbamic acid methyl, ethyl and methylglycol esters.  Specification 637,404 is referred to.
Patent GB-515876-A (GB)
Title: Improvements relating to packages
IPC: B65D75/30
Filed: 1938-07-06
Abstract: 515,876. Packages. SALFISBERG, L. L. July 6, 1938, No. r9993. Convention date Oct. 5, 1937. [Class 94 (i)] A package comprises a relatively stiff backing 1 of cellulosic material, and a transparent rubber &c. membrane 12 thermoplastic ally secured to the backing in the marginal areas 11a ... 11d enclosing articles 2 in spaced relatior.ship. The backing may be coated with caseine, and may bear printed impressions 3 .... 10, and may be provided with corrugated deformations 14 with which the membrane 12 is bonded. The' backing .may be lacquered metal foil, fibre &c. and may be deformed to accommodate the article.
Patent GB-335619-A (GB)
Title: Improvements in or relating to screw cutting devices for automatic lathes
IPC: B23B11/00
Filed: 1929-06-29
Abstract: 335,619. Schaerer, O., and Poppensieker, F. June 29, 1929. Lathes; screwing. - In a screw-cutting device particularly for multiple-spindle automatic lathes the tool is traversed ' by a threaded mandrel which rotates unidirectionally in a guide nut and is driven alternately at a higher and lower speed than the nut to traverse the tool in opposite directions. A central shaft 3, journaled in the work turret 52, and driven from the main gear housing 49, is connected to work spindles through gears 2, 4. A shaft 1, also driven from the gear housing drives a countershaft 9 connected by gears 10, 12 and pin 16, Fig. 1, to a nut 18 coacting with a threaded mandrel 26 mounted on a shaft 23 and is itself driven in the same direction as the nut 18 either at a lower speed than the nut by the gears 11, 13 or at a higher speed than the nut through the gearing 8, 14. The tool spindle 27 rotates and moves axially in the main tool slide 29 and is driven from the shaft 23 through a detachable connecting sleeve 25. The nut 18 may be driven at the same speed and in the same direction as the work spindle 6. Thus for the forward traverse the tool rotates at a lower speed than the blank to cut the thread therein and on the return motion the tool rotates at a higher speed than the blank and is thus screwed off the work. For cutting left-handed threads the tool passes on the blank at the higher speed and is withdrawn at the lower speed. The mandrel change speed mechanism is controlled by a clutch sleeve 22 which is actuated automatically. A sliding rod 31, connected to the sleeve 25, actuates a rod provided with a projection 33, which, at a predetermined point lifts a pawl 35 and allows a spring 37 to shift the clutch to the right and actuates the withdrawal movement. In order to return the clutch member, a control disc 42, driven through a coupling 45, from a shaft 43, is provided with projections 40, 41, which engage the lever 36 and shift the clutch first to a neutral position, at which the work turret is indexed while the disc 42 is held stationary bv a pawl 44, and finally to the left-hand position for a fresh threading operation.
Patent GB-923430-A (GB)
Title: Catalytic oxidation process
IPC: B01D53/86
Filed: 1960-06-08
Abstract: Hydrocarbon combustion products are oxidised at elevated temperature with added air in the presence of a catalyst which comprises a major proportion by weight of a refractory metal oxide-containing carrier and a minor proportion by weight of a component catalyzing the reaction, in a process characterized in that the oxidation is effected at at least 177 DEG C., preferably at 427 DEG C.-650 DEG C., in the presence of a composite catalyst containing an acid-acting multi-component carrier effective in catalyzing the cracking of hydrocarbons, for example alumina containing at least 0,1% of halogen or the refractory carrier may include a minor proportion of a phosphate salt, or it may comprise at least one of the refractory oxides of aluminium, titanium, zirconium or thorium with at least one of the oxides of silicon and boron; and an oxidizing catalyst component selected from metals of the platinum group and the oxides of metals of the group: vanadium, chromium, molybdenum, tungsten, and manganese.  The catalyst may be one which has been used in a catalystic hydrocarbon reforming process, and which contains not more than 10% by weight of carbon. The hydrocarbon combustion products may be the exhaust gas of an internal combustion engine.  In this application the catalyst may be disposed in the inner annular space in a cylindrical vessel containing an outer cylindrical screen and an inner perforated centre pipe, the gases passing through the catalyst and out via the centre pipe.  The catalyst carrier may be manufactured by any suitable method, including precipitation, or may be a naturally occuring base which has if desired been heated for example by calcining or by acid action.  The halogen may be incorporated as the element, or as a volatile salt, or by heating with the acid, either anhydrous or in solution.  The catalyst component may be introduced by any suitable conventional method.
Patent GB-218135-A (GB)
Title: An improved protractor
IPC: G01C1/00
Filed: 1923-08-07
Abstract: 218,135. Cameron & Robertson, Ltd., and Dorsie, J. C. Aug. 7, 1923. Protractors.-Two quadrants 1, 2 are pivoted together at their common centre of curvature 3, one being marked with angular graduations while the other is marked with two radial lines 4, 5 at right-angles to each other against one of which the angle to be measured is read off on the graduated quadrant.
Patent GB-1277632-A (GB)
Title: Process for preparing specially activated sludge
IPC: C02F3/34
Filed: 1970-05-18
Abstract: 1277632 Treating sewage ASAHI KASEI KOGYO KK 18 May 1970 20166/69 Heading C1C Cultured cells specific to a particular pollutant are mixed with an aqueous suspension of the normal activated sludge and then used to treat liquid containing the specific pollutant under aerobic conditions such as to establish all cultures in a commensal state. Many pollutants and specific bacteria are specified.
Patent GB-1067452-A (GB)
Title: Improvements in or relating to fans and blades therefor
IPC: B23P15/02
Filed: 1963-05-21
Abstract: 1,067,452. Making impeller blades; twisting. L. G. DAVIES. May 20, 1964 [May 21, 1963], No. 20190/63. Headings B3A and B3E. [Also in Division F1] A method of shaping impeller blades comprises cutting a blade blank length from a deformable strip, e.g. of extruded cast or rolled aluminium or plastic having the required aerofoil cross-section, fixedly clamping the blank over a small portion of its length intermediate its ends, gripping the opposite ends of the blank and turning them relatively to the fixed portion of the blade to twist the blank between its root and tip to form the blade. The gripping means may comprise a pair of axially aligned rotatable chucks each carried by a rod mounted on a base-plate. The chucks may be recessed to hold the aerofoil section and may also clamp the section. Holes may be blanked in the root end of the blade blank which is also machined to produce a neck root portion by which it is located between two halves of a preformed block, a number of which are mounted with blades in a conventional split hub to form an impeller. Alternatively the blocks may be replaced by a pair of interfitting zig-zag shaped annular bands or the hub may be pre-cast with socket recesses to house the blade roots.
Patent GB-833435-A (GB)
Title: Improvements in or relating to plunger actuated electric switches
IPC: H01H13/06
Filed: 1955-07-13
Abstract: 833,435. Press-button retractive switches; switches held set and freed mechanically. IGRANIC ELECTRIC CO. Ltd. Aug. 10, 1956 [July 13, 1955], No. 20266/55. Class 38 (5). The housing of a switch having an axially-movable plunger carrying a contact bridge is recessed to receive the projecting plunger of a similar switch for operation therewith. As shown (Figs. 2-4) an insulating housing 40 has two recesses for plungers 1, 2 which each carry a contact bridge 4, 6. The plungers are biased by springs 3 so that the bridge 4 normally engages contacts 5 and the bridge 6 is held away from contacts 7. A closure member 41 is apertured to receive the plungers of a similar unit so that movement of plungers 1 and 2 is transmitted to the respective plungers of the second unit. Aligned lugs are provided on each housing so that any number of units may be arranged for unitary operation. Fig. 6 shows a push-button assembly for operation of one or more such switches, the projecting plungers of which are engaged by a plate 11 on the stem 10 of the button. The assembly is sealed against the entry of oil by a flexible diaphragm 14 attached to the stem 10 and casing 9. Holes 42, 43 are provided for oil drainage. In Fig. 8 an operating device comprises a cam 29 for engaging the projecting plungers, mounted on a shaft 28 rotatable by a lock 27. When a key is inserted in the lock it may be rotated to any desired position to operate the one or both switches or rows of switches and locked in that position by removing the key. If the key is not removed a torsionspring 30 may return the shaft to a neutral position. The lock 27 may be replaced by a moulded knob and the spring 30 may also be provided with this arrangement. An oil seal 32 is held in place by a spring 34 acting on a plate 33.
Patent GB-1285133-A (GB)
Title: Production of carboxylates of neo-alcohols
Inventor: FEWLASS MAURICE WILLIAM
IPC: C07C69/24
Filed: 1970-04-28
Abstract: 1285133 Neo-alkyl carboxylates BP CHEMICAL Ltd 19 April 1971 [28 April 1970] 20317/70 Heading C2C Neo-alkyl carboxylates are prepared by hydrogenating a neo-alkenyl carboxylate by trickling it over a Group IB or VIII metal hydrogenation catalyst on an inert support in an atmosphere of hydrogen. By "neo-alkyl" and "neo-alkenyl" is meant an alkyl or alkenyl group in which the #-carbon atom is linked only to carbon atoms. The hydrogenation is preferably carried out at a temperature not exceeding 250‹ C. under a pressure below 250 p.s.i.g. Examples describe the conversion of 2,2,4-trimethylpentenyl - 1 - isobutyrate to 2,2,4 - trimethylpentyl-1-isobutyrate.
Patent GB-1453113-A (GB)
Title: Method and apparatus for tamping and levelling railway track
IPC: E01B27/17
Filed: 1974-05-08
Abstract: 1453113 Railway track levelling and tamping machine FRANZ PLASSER BAHNBAUMASCHINEN-INDUSTRIE GmbH 8 May 1974 [25 May 1973] 20327/74 Heading E1G A track levelling and tamping machine comprises a reference system 10, 11 to determine the track height; track lifting gear 12; vibratory ballast tamping tools 5, 8; a stop device to prevent lifting of the track above the desired height, as defined by the reference system; and control means 16, responsive to the reference system, to control the squeeze pressure of the tamping tools so that the local degree of compaction of the ballast is substantially proportional to the track height error. The degree of compaction applied comprises a constant component as well as a variable component substantially proportional to the track height error. The reference system is electrical and a memory stores the measured track height error while the track is lifted and this measurement controls the setting of a pressure regulating valve in the hydraulic supply line of the tamping tools. The lifting gear 12 is locked at the required height when it acts as a stop. Reference has been directed by the comptroller to Specification. 1394249.
Patent GB-1088878-A (GB)
Title: Traveling rail for overhead trolley conveyors and travelling power-consuming apparatus
IPC: H02G5/04
Filed: 1965-05-13
Abstract: 1,088,878. Travel rails. DEMAG-ZUG G.m.b.H. May 13, 1965 [Oct. 10, 1964], No. 20329/65. Heading B7L. A travel rail 1 for overhead trolley conveyers and travelling power-consuming apparatus comprises one U -shaped member, or two, Fig. 11 (not shown), formed by flanging or extrusion, with semi-circular beads 1b engaged by centrally waisted rollers 2 mounted on a trolley having an electrical contact 3 connected via spring-urged means (not shown) to live contact rails 6 resiliently clamped to chairs 5a of flexible insulators 5 secured to the web of the rail 1, which rail is supported by suspensions 4. The contact rails 6 are joined by plug pins (7), Fig. 2 (not shown), located by internal flanges (6a) in the rails 6, and the travel rails 1 are joined by dowel pins or members (9) fitted tightly into tube sections 8 welded into the ends of troughs 1c of the beads 1b Alternatively the tube sections (8) may be welded to caps (not shown) mounted at the ends of the rails 1. In transition or cross-over tracks, pins (10), Figs. 3-5 (not shown), are provided, the cylindrical parts (10a) of which lie in the troughs 1c and the tapered semi-conical portions (10b) of which project from the rail ends which are cut back to receive the pins (10), and a vertical pressure roller (12) is connected to the rail 1 at the transition to counteract the pressure applied by the contact springs and to guide the trolley contact 3. The trolley may be removed from the rail 1 through an open section of the lower bead 1b which is normally bridged by a tube (13), Fig. 6 (not shown), held in position by a rod (15) extending through bushes (14) welded into the trough of the bead 1b, the rod (15) being secured by a split pin (16). In another construction, Figs. 7-10 (not shown), the bridging (1d) comprises a section cut-out of the rail and hinged at (17) to the rail, bushes (18) being welded into the ends of the bridging (1d) and bushes (14) into the ends of the rail trough, and spring-loaded bolts (21) normally interlocking the bridging with the rail. In Fig. 11 (not shown), two rails 1 are spaced by a strip (22) provided with a suspension bolt and the suspensions comprise members (23), (24) and (25). The trolley is supported on conical rollers (2a). The beads may be semi-circular or triangular in section and engaged by centrally waisted double cone rollers having curved beadengaging surfaces, and may be formed by rods seamed to the limbs of the rail 1. The tapered portion (10b) of the pin (10) may then be integral with the semi-circular rod.
Patent GB-789967-A (GB)
Title: Apparatus and method for moulding plastic material
IPC: B29C43/08
Filed: 1954-09-03
Abstract: 789,967. Moulding rubber rings &c. DUNLOP RUBBER CO., Ltd. Sept. 3, 1954, No. 20331/56. Divided out of 789,965. Class 87(2). Relates to a method of moulding articles from a continuous strip S, Figs. 1 and 3, of rubber or other plastic material between open pairs of opposed co-operating dies 18, 19 which are carried by a wheel 10, Fig. 1, which moves the dies, one pair after another, to a position opposite the strip, the dies being closed successively under pressure on the strip as shown in Fig. 3 to blank out and deposit in the die cavities pieces P of rubber &c.: as shown the pieces are rings. According to the invention, after each piece has been blanked from the strip the perforated strip is pulled laterally away from the dies, Fig. 4, the strip tearing in that portion thereof which is disposed between the dies and one of its edges. To facilitate the tearing, the' strip may be cut by a cutter provided on the dies, Fig. 5 (not shown). As shown, the strip is blanked out nearer to the lower edge of the strip than to the upper, and is pulled upwardly so that the lower (narrower) margin tears. The perforated torn strip S<SP>1</SP> is carried back to a warming mill M (which forms the strip S) by guide rollers 45 and power-driven rollers 46. As shown, die 19 is stationary and die 18 reciprocates horizontally.
Patent GB-791439-A (GB)
Title: Apparatus for reproducing electrical signals from movable records
IPC: G11B20/20
Filed: 1955-07-13
Abstract: 791,439. Television. RADIO CORPORATION OF AMERICA. July 13, 1955 [Aug. 23, 1954], No. 20344/55. Class 40 (3). Synchronizing signals derived from a magnetic tape recording 10 of television signals are compared with reference signals from a standard synchronizing generator 20 in a phase comparator 16 and the voltage resulting from any difference in phase employed to control a variable delay network 21 through which at least the video component of the recorded signals is passed. The arrangement may supplement a normal tape velocity control 18 operating on the tape transport mechanism 19 and offsets phase distortions due to short-term tape velocity variations which are not removed by the velocity control. The synchronizing signals may be derived by means of a conventional synchronizing signal separator 16 connected to the playback amplifier 15. Alternatively they may be derived from a recording on a track 13 separate from the main track 14, in which case a connection 9 is taken directly to the phase comparator. In a second embodiment, Fig. 3 (not shown), the synchronizing signal separator receives its input from the output of the variable delay network. Reference is made, without giving details, to the use of a reference sine wave in place of the synchronizing signals. The delay network may comprise a coil and capacitor network, Fig. 2 (not shown), in which the coils have magnetic cores and the inductance value is varied by passing the D.C. output from the phase comparator through secondary windings. In colour television, where the colour components are recorded on a plurality of separate tracks, a separate variable delay network is provided for each track, control being effected either individually from synchronizing signals recorded with the signals on each track, or commonly from separate synchronizing signals on a further track.
Patent GB-202319-A (GB)
Title: Improvements in free wheel and back pedalling brake hubs for cycles
IPC: B62L5/04
Filed: 1923-08-10
Abstract: 202,319. Schweinfurter Prõcisions- Kugel - Lager - Werke Fichtel & Sachs. Aug. 11, 1922, [Convention date.]. Clutches, free-wheet.-In back-pedalling brake and free-wheel cycle hubs of the type in which a sleeve-nut 14, displaced by a screw-thread 13 on the driving-member 9, has two conical surfaces 17, 18 to engage respectively a clutch-ring 16 slidable on the hub and a brake sleeve 20, the conical surfaces on these three members are provided with saw-shaped clutch teeth. The ring 16 may be dispensed with, the cone 17 engaging then a conical recess in the hub.