baber/WOPTO huggingface dataset:
Patent GB-425839-A (GB)
Title: Manufacture of azo-dyestuffs insoluble in water
IPC: C09B29/20
Filed: 1933-09-22
Abstract: Azo dyes insoluble in water are made by coupling the diazo compound of an amine of the formula <PICT:0425839/IV/1> wherein X=alkyl or alkoxy and R = hydrogen, an alkyl, aryl, aralkyl or hydroaromatic radical, with an arylide of 2 : 3-oxynaphthoic acid.  They are suitable for lakes and for colouring rubber or similar synthetic products and are fast to vulcanization.  In examples, the following dyestuffs are described: (1) 3-amino-4-methoxybenzene - 1 - sulphamide --> 2 : 3-oxynaphthoyl-o-anisidine; (2) and (3) 3-amino4-methylbenzene - 1 - sulphonic acid - methylamide --> 2<1> : 3<1> - oxynaphthoyl - 1 - amino-2-or 4-methoxybenzene; (4) 3-amino-4-methylbenzene - 1 - sulphonic acid - benzylamide --> the o-anisidide; (5) 3-amino-4-methoxybenzene-1-sulphonic acid-cyclohexylamide --> the o-anisidide; (6) 3-amino-4-methylbenzene-1-sulphanilide --> the o-anisidide; (7) the dyestuff 3-amino-4-methoxybenzene - 1 - sulphamide --> the anilide is incorporated with a mixture containing cr<\>zepe rubber, stearic acid, sulphur, zinc white, mercaptobenzothiazole, hexamethylenetetramine, calcium carbonate, ozokerite, lithopone and titanium dioxide and vulcanized; (8) and (9) 3-amino-4-methoxy or 4-methylbenzene - 1 - sulphonic acid - methylamide --> the anilide are used as in (7).  Specifications 6379/12 and 279,146, [both in Class 2 (iii)], are referred to.  The Specification as open to inspection under Sect. 91 specifies further combinations including the use of the following additional components: the amide, ethylamide, ethanolamide, n-butylamide, o-chloranilide and cyclohexylamide of 3-amino - 4 - methylbenzene - 1 - sulphonic acid, 3-amino - 4 - ethoxybenzene - 1 - sulphonic acid methylamide, the ethylamide and benzylamide of 3-amino-4-methoxybenzene-1-sulphonic acid; the 2<1> : 3<1>-oxynaphthoyl derivatives of a - and b - naphthylamine, m - toluidine, 1 - amino - 2 - methoxy-4- or 5-chlorobenzene, o-phenetidine, p-chloraniline and 1-amino-2 : 4-dimethoxy-5-chlorobenzene.  This subject-matter does not appear in the Specification as accepted.ALSO:Rubber or similar synthetic products are coloured with azo dyes made by coupling the diazo compound of an amine of the formula <FORM:0425839/V/1> wherein X = alkyl or alkoxy and R = H, an alkyl, aryl, aralkyl or hydroaromatic radicle, with an arylide of 2 : 3-oxynaphthoic acid. The dyes are fast to vulcanization.  In an example, the dyestuff is incorporated with cr<\>zepe rubber, stearic acid, sulphur, zinc white, mercaptobenzothiazole, hexamethylenetetramine, calcium carbonate, ozokerite, lithopone and titanium dioxide and the mixture vulcanized.
Patent GB-709517-A (GB)
Title: Improvements relating to components for buildings
IPC: E04C2/36
Filed: 1950-10-27
Abstract: 709,517. Building units. RICHARDS, H. L. Jan. 28, 1952 [Oct. 27, 1950], No. 26222/50. Class 87 (1). [Also in Group V] A building panel has a core of low density material in the form of blocks 2 of wood, hollow metal, plastic, aerated concrete or foamed slag intersected by ribs 4 of plaster, concrete or bitumastic compound and surrounded by edges 8 of the same material as the ribs. Reinforcement 6, comprising strips of metal which are slotted where they cross one another, is embedded in the ribs. The panel is faced at 12, 13 with the same material as the ribs and this facing is reinforced with layers of hessian 14. The panel may carry a strip 20 round its edge (to which the reinforcement 6 is secured) which also forms part of the side of the mould in which the panel is cast (see Group V) and is of wood, plastic or hollow metal. The edge ribs 8 have a central groove 10 for engaging a jointing strip, a similar groove being shown on the outside of the strips 20. The facings 12, 13 are undercut at 15 so as to provide a key for jointing between adjacent panels. The Provisional Specification mentions that one or both of the facings may be omitted.
Patent GB-767812-A (GB)
Title: Improvements in or relating to cinematograph apparatus
IPC: G03B9/10
Filed: 1954-09-10
Abstract: 767,812. Kinematograph apparatus. SOC. NOUVELLE PATHE-CINEMA. Sept. 10, 1954 [Nov. 13, 1953], No. 26231/54. Class 97(1) In a kinematograph camera or projector, the relative angular position of the two shutter blades 21, 28 is dependent on the direction of rotation of their driving shaft, their relative rotation in either direction being halted when the trailing edge of blade 28 comes into contact with a stop on blade 21. The reversal of an electric driving motor 2 thus changes the exposure time. As shown, blade 28 is driven by flange 24, fast with blade 21, through friction member 29 and the relative rotation of the blades is brought about by a slight braking action between blade 28 and disc 30 which tends to be held stationary relatively to fixed shaft 22. Spring 34 provides the necessary frictional engagement. The drive from motor 2 is transmitted by helical gearing 38, 39 to cross-shaft 37 and, by worm 40 and worm wheel 41 to gear 14 carrying a spring pressed feed claw 12 on crank pin 13. Gear 48 on take-up spool shaft 20 is driven by gear 46 when gear 14 rotates in the direction of the arrow f<SP>1</SP>. When motor 2 is reversed gear 48 is driven by gear 47 which meshes with gear 46, triangular plate 43 having moved automatically in a clockwise direction, so that the direction of rotation of the takeup spool 19 remains unchanged. In a projector the reversal of a motor 2 may be associated with a change in the size of film, the alteration of the shutter being used to keep the brightness of the projected image constant. Specification 767,813 is referred to.
Patent GB-638216-A (GB)
Title: Improvements in or relating to centrifugal casting
IPC: B22D13/10
Filed: 1947-09-29
Abstract: 638,216. Centrifugal casting-machines. CENTRAL FOUNDRY CO. Sept. 29, 1947, No. 26256. Convention date, Oct. 12, 1946. [Class 83 (i)] Clamping moulds.-A machine for the centrifugal casting of iron pipe &c., particularly as described in Specification 626,723, comprises a two-part mould 14, 15 having fluid-pressure clamping devices with means for locking fluid therein during the rotation of the mould. The mould may have flanges 6, to rest on driven rollers 4 and enlarged ends 17, for casting end flanges &c. Each clamping device may consist of two curved webs 22, 23, Fig. 6, to engage the parts 14, 15, provided with flanges 18, 19 connected by a hinge-pin 21. Each pair of flanges 19 is joined by a plate 2 which carries a cylinder 26 having a piston 29 and a rod 28 to which is pivoted a link 34 able to engage notches 35 in the flanges 18. All the cylinders have their upper and lower ends connected respectively to pipes 36, 38 having selfsealing couplings 37, 39, of known type, whereby they can be connected, except when the mould is rotating, to a four-way valve 44 to supply fluid-pressure to either pipe 36, 38. The mould part 15 is preferably welded to the web 23. After placing the part 14 in position and turning the webs 22 and the links 34, from the broken to full-line positions, pressure is admitted to the pipe 36 and exhausted from the pipe 38. The couplings 37, 39 are then detached, the mould is rotated and a charge of molten metal is poured through the trough 8. When the metal has set the mould is stopped, the couplings are re-connected, pressure is applied to release the links 34, the mould is opened, and the casting is extracted, The mould parts have inclined joint faces 61, Fig. 1, and 58, 59, Fig. 6, to ensure an effective seal. The mould part 14 may also be welded to its web 22 and in this case the joints 21 may be replaced by fluid-operated links, similar to 34 and operated in the same way and at the same time. The heat of the cast metal is stated to act on the fluid in the cylinders 26 and thus increase the clamping pressure.
Patent GB-636970-A (GB)
Title: Frequency stabilising device for short wave and ultra-short wave generators
IPC: H03J7/04
Filed: 1947-09-29
Abstract: 636,970. Automatic frequency control systems. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Sept. 29, 1947, No. 26291. Convention date, Oct. 3, 1946. [Class 38 (iv)] The frequency of a short-wave generator, e.g. a reflex klystron, is stabilized by feeding its output to a cavity resonator tuned to the desired frequency but varied sinusoidally about that frequency by a low-frequency modulating current. Amplitude-modulated output takes from the resonator is rectified to provide a lowfrequency current, the phase of which in dependent on the direction of deviation of the generator frequency. By comparing this phase with that of the original low-frequency current, a control voltage is derived and applied to an electrode of the generator to correct its frequency. In Fig. 1, a klystron generator G feeds a cavity resonator V by a coaxial line D1, and a low-frequency current S is applied through a transformer T1 to a modulator m which is coupled to the resonator V by a co-axial line D2 and has the effect of varying the natural frequency of the resonator in the rhythm of the current S. The oscillations within the resonator are picked up by a line D and are rectified by a crystal K, and the resulting low-frequency component is fed through a condenser CO to an amplifier AF. The phase of the output from the amplifier AF is compared with that of the current S in a pentode valve P, the first and second grids of which are fed respectively from amplifier AF and from a secondary coil 2 on the transformer T1. One direction of frequency deviation results in assisting phases at the two grids, and the other in opposing phases. The anode voltage falls in one case and rises in the other, and is transferred by the lead A to the reflector or other control electrode of the generator G. The effect of changes in the power output of the generator is neutralized by feeding a crystal rectifier K<1> from the generator, and combining its output with that from the crystal K. A rejector circuit L1, C1 prevents the low-frequency output of the crystal K from being diverted towards the crystal K<1>. The third grid of the pentode P may be fed with a voltage proportional to the power output of the generator G (Figs. 4 and 5, not shown). In Fig. 3 the phase comparison is effected in a pair of balanced pentode valves P1, P2, the output from the amplifier AF being applied in pushpull to their inner grids through a transformer T1, and the modulation voltage S from the coil 2, Fig. 1, being applied at C, D to their anodes. A voltage EF, proportional to the generator output, may be applied to their second grids. The derived control voltage is taken between tappings A, B on the cathode resistors.
Patent GB-226909-A (GB)
Title: Improvements in internal combustion engines
IPC: F02M67/00
Filed: 1923-10-23
Abstract: 226,909. Hausmeister, P. Oct. 23, 1923. Materials, actuating. - Mixture for use in an engine is generated at a pressure which is a multiple of the final compression pressure within the cylinder; a pressure of 20 to 30 atmospheres is proposed. The mixture may consist of hydrogen and oxygen.
Patent GB-674411-A (GB)
Title: Improvements in or relating to photographic cameras with shutters of the between-lens type
IPC: G03B3/02
Filed: 1950-10-30
Abstract: 674,411. Photographic cameras. DECKEL, H. and DECKEL, F. W. Oct. 30, 1950 [Nov. 2, 1949], No. 26393/50. Class 98(i). A photographic camera having a shutter of the between-lens type which is secured as a selfcontained unit 14 on a wall 12 of the camera and which carries the photographic lens, is characterized in that the plane of the shutter blades 18 and the plane of the wall 12 coincide approximately, so that the lens or an exchangeable part 20 thereof is located in front of, and the shutter unit 14 is located at the rear of, the plane 18. The shutter speed adjusting disc 24 provided on the shutter unit may be operated by an intermediate link or links 26 passing through the wall 12 and co-operating with parts at the outside thereof, such as a setting ring 28.
Patent GB-604316-A (GB)
Title: Tractor crane
IPC: B66C23/44
Filed: 1945-10-10
Abstract: 604,316. Cranes. SWANEY, R. C. Oct. 10, 1945, No. 26439. Convention date, Nov. 6, 1944. [C;ass 78 (iv)) In a crane in which the mast and boom are adapted to be supported on the tractor, the boom being supported for swinging laterally with respect to the tractor, and in which hoisting means is mounted on the tractor and has cables leading to the mast and boom for raising and lowering loads and for swinging the boom, the mast 29 is exclusively supported by a traction unit on one side of the tractor, the boom 30 is supported by the traction unit, and an upwardly extending counter arm 31 has its upper end connected to the head end of the mast while its lower end is adapted to be mounted on the traction unit at the opposite side of the tractor. The boom 30 is an A frame and has legs which straddle the mast. It may be pivoted directly to the traction unit at 36 or mounted directly on the mast 29. The mast extends across the tractor so. that the counter arm 31 is substantiallv vertical and lateral stress by parts of the crane on the traction unit is eliminated. A bridle 52 is connected to the boom. A boom topping line 67 is provided running between the bridle 52, mast 29 and hoisting drums 13, 14 for swinging the boom. When the topping line is slack the weight of the boom is carried by a spring 88 interposed between the boom and bridle. The topping line passes around sheaves on pulley blocks 55, 59 on the bridle and mast respectively. When these blocks are brought together mast, boom, and bridle form a rigid triangle. A load line 60 runs between the hoisting mechanism and the mast to support the load. To absorb the strain on the mast, a rigid fair lead member 64 is flexibly coupled to the mast and to a post 66 mounted on the same bracket as the drums 13, 14. The load and topping lines pass through the fair lead member and over guide pulleys 65 on the post 66 and on to the drums 13, 14 respectively. Springs 89 are provided to displace the boom from an upright position when the topping line is slackened so that the boom is lowered under gravity.
Patent GB-633916-A (GB)
Title: Improvements in or relating to dielectric heating apparatus
IPC: H05B6/78
Filed: 1947-10-01
Abstract: 633,916. Dielectric heating. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 1, 1947, No. 26454. Convention date, Oct. 4, 1946. [Class 39 (iii)] A strip of dielectric material 15 is passed through a cavity resonator 3 through slots 11 and 13 staggered by one or more half-wavelengths, to offset the effects of standing waves within the resonant chamber which is excited with microwave energy.
Patent GB-209157-A (GB)
Title: A process for the manufacture of slow or rapid burning fuse cords
IPC: C06B41/02
Filed: 1922-10-02
Abstract: 209,157. Friederich, W. Oct. 2, 1922. Explosives.-Slow and rapid burning fuse cords are loaded with basic lead salts of nitrocompounds, such as dinitrocresols, dinitrophenols, picramine acid. hexanitrodiphenylamine, and tetranitrodiphenylamine, and mixed or double salts of these with each other or with multiple basic, partly basic, or neutral salts. Oxygen carriers may be added. Specifications 180,605, and 192,830 are referred to.
Patent GB-205974-A (GB)
Title: Apparatus for regulating the admission and discharge in water tanks and other receptacles
IPC: G05D16/12
Filed: 1922-10-02
Abstract: 205,974. Skaarnas, K., and Aktieselskabet Drammens Armaturfabrik. Oct. 2, 1922. Ball and float valves. - A cistern inlet valve 4 is operated by a float 5 in a special chamber 2. The inlet pipe 3 communicates with the chamber by an opening 8 and a larger opening 9 fitted with a non- return valve 10. If the pressure in the inlet falls below that in the tank liquid passes out through the valve 10, the float falls and opens the valve 4, and liquid passes out along the pipe 3.
Patent GB-277824-A (GB)
Title: Improvements in and relating to mailing wrappers or coverings
IPC: B65D75/52
Filed: 1926-10-25
Abstract: 277,824. Brittain, E. G. Oct. 25, 1926. Wrappers; special means for securing wrappers.-A wrapper adapted to enclose and protect drawings, documents, &c. comprises a sheet a of relatively stiff but rollable strawboard, millboard, corrugated strawboard, or like material, attached at its upper longitudinal edge a<1>, preferably by adhesive, to the lower longitudinal edge of a strip b of relatively thin wrapping paper, the ends b<2> of the paper projecting beyond the lateral edges of the sheet a, so that when the latter is rolled into tubular form and the strip b wrapped around it, it can be secured by tucking the projecting ends b<2> of the paper into its open ends. Adhesive may be provided along the upper edge b<3> of the paper strip, or an adhesive label may be applied thereto to retain it in position. One end of the paper strip may be slit to form a central tag which projects outwardly when the adjacent pieces are tucked within the wrapper, the tag being used as an address label or advertising medium, or postage stamps may be secured thereon. The enclosure may be rolled within the stiff portion of the wrapper or may be inserted after the wrapper has been rolled into tubular form.
Patent GB-1140816-A (GB)
Title: A charging arrangement for a blast furnace
Inventor: LEONIDOV NIKOLAI KONSTANTINOVI
IPC: C21B7/18
Filed: 1967-06-09
Abstract: 1,140,816. Charging blast furnaces. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY I PROEKTNO - KONSTRUKTORSKY INSTITUT METALLURGICHESKOGO MASHINOSTROENIA. 9 June, 1967, No. 26742/67. Heading F4B. Blast furnace charging equipment comprises upper and lower bells 5, 1 respectively actuated through rods 6, 2 respectively. The rod 2 of the lower bell 1, passes through the hollow rod 6 of the upper bell and is supported in position by an upper bushing 8 and a lower bushing 11. The latter is mounted on a support ring (10, Fig. 2) secured to the shell 9 of the upper bell 5 by bolts extending through larger diameter apertures to allow adjustment of the support ring and bushing relative to the shell of the upper bell.
Patent GB-386928-A (GB)
Title: Improvements in or relating to the control of change-speed gear boxes
IPC: B60K20/02
Filed: 1932-09-27
Abstract: 386,928. Controlling two power units from a single point on a vehicle. RENAULT, L., 8, Avenue Emile Zola, Billancourt, Seine, France. Sept. 27, 1932, No. 26831.. Convention date, Oct. 29, 1931. [Class 79 (v).] Two change-speed gears at A and B, Fig. 1, are controlled separately or simultaneously at will from two lever 15, 151, which can be locked together by a through pin 18, Fig. 2. Selector rods 1, 2 of the gear A are connected through a linkage 4 .. 8, 13 to a shaft 14 secured to the lever 15, and selector rods 1<1>, 21 of the gear B through a linkage 41, 51, 81, 131 to a shaft 141 secured to the lever 151, the shafts 14, 141 being one within the other. Axial and rotary displacements of the shafts 14, 141 produce the same selective and operative displacements of the two pairs of selector rods. The driver of a vehicle can place himself on either side of a pillar supporting similar gates 16, 161.
Patent GB-279632-A (GB)
Title: Improved machine for delineating spaces for games played on lawns and fields
IPC: A63C19/08
Filed: 1926-10-27
Abstract: 279,632. Sondergaard, P. V., and Hansen, K. A. Oct. 27, 1926. Lawn-tennis and like markers. - A machine for marking out spaces for games, such as lawn tennis and football, and of the type comprising a receptacle for whitening or the like supported upon a wheel or wheels for propulsion over the ground by means of suitable handles, the receptacle tapering to an outlet below a rotary stirrer, is provided with a blower for discharging a current or air adjacent the outlet to ensure forcible ejection of the whitening. The receptacle a containing the whitening &c. in powdered form or mixed with water, tapers to an outlet b adjacent to which is a tapered stirrer n driven from one of the ground wheels c by a chain g, shaft h and bevel gearing. The shaft h also drives a blower r for forcing a stream of air through a channel to the interior of the outlet b to eject the whitening from the receptacle.
Patent GB-319273-A (GB)
Title: A process for the manufacture and production of c-alkyl and c-aralkyl derivatives ofaromatic compounds
IPC: C07C2/86
Filed: 1929-09-04
Abstract: 319,273. Foldi, Z. Sept. 29, 1928, [Convention date]. C-alkyl and C-aralkyl derivatives of aromatic compounds containing the alkyl or aralkyl group in the nucleus or alkyl side chains are made by treating aromatic compounds free from amino and free carboxyl groups with an aromatic sulphonic ester in the absence of alkali. Esters of the lower aliphatic alcohols only react at high temperatures forming mono- and polyalkyl compounds. Esters of unsaturated aliphatic alcohols e.g. benzenesulphonic allyl ester and esters of aromatic alcohols, e.g. benzyl alcohol and phenylethyl carbinol react at lower temperatures. The products are useful as intermediates and wetting agents. In examples (1) mono-, di- and tri-ethylbenzenes are obtained from p-toluenesulphonic ethylester and benzene; (2) benzenesulphonic allyl ester is boiled with xylene; unsaturated hydrocarbons and a resin are obtained; (3) diphenylmethane and dibenzylbenzene are made from benzenesulphonicbenzylester and benzene; (4) benzyldinitrobenzene is made from p-tcluenesulphonicbenzylester and m-dinitrobenzene; (5) o- and p-benzylphenol from benzenesulphonicbenzylester and phenol; (6) benzylanisole from the benzylester and anisole; (7) diphenylmethanehydroxycarboxylic methyl ester from the benzylester and methyl salicylate (8) mono- and dibenzylated cinnamic ester from the benzylester and ethylcinnamate; alpha-benzyl- and dibenzylcinnamic acids are obtained on hydrolysis. The Specification as open to inspection under Sect. 91 (3) (a) describes also the treatment of aromatic compounds generally with alkyl or aralkyl esters of aromatic sulphonic acids, and contains two additional examples in which (1) naphthalene sulphonic butyl ester when heated yields a wetting, cleansing and dispersing agent, one part of the ester reacting with the other part; and (2) naphthalene sulphonic. acid is heated with benzenesulphonicbenzylester; a similar product is obtained from naphthalene and the benzylester and sulphonating. This subject-matter does not appear in the Specification as accepted.
Patent GB-535185-A (GB)
Title: Improved carbon blacks
IPC: C09C1/56
Filed: 1939-09-29
Abstract: 535,185. Carbon black. BAIRD, W., NAUNTON, W. J. S., WARING, J. R. S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 29, 1939, No. 26881. [Class 90] Channel blocks are submitted to the action of chlorine and heat so that the resulting products contain chlorine in a proportion between 5 to 20 per cent. The heat may be applied before, during, or after the chlorine treatment, and the preferred temperature is 400-600‹C. Specification 523,149 is referred to.
Patent GB-851631-A (GB)
Title: Process for the manufacture of manganese-zinc-ferrite
IPC: C04B35/26
Filed: 1958-08-21
Abstract: 851,631. Magnetic compositions. BETEILIGUNGSUND PATENTVERWALTUNGS G.m.b.H. Aug. 21, 1958 [Aug. 22, 1957], No. 26909/58. Class 38 (2). A manganese-zinc ferrite with a specific resistance above 150 ohm. cm., a uniform crystal size of 5-10 Á and a density of 4.3-4.8 gm/cm.<SP>3</SP> is made by grinding 28 mol. per cent MnO (as MnCO 3 ), 18.5 mol. per cent ZnO and 53.5 mol. per cent Fe 2 O 3  for 5 hours in a ball mill with distilled water and drying, pressing the mixture into plates under 100 kg/cm.<SP>2</SP> pressure, presintering for 5 hours at 1050‹ C. when shrinkage of 15% occurs, regrinding for 7 hours in an oscillating mill, drying, pressing into rings and sintering for 5 hours between 1270‹ C. and 1320‹ C. for 5 hours in nitrogen.