baber/WOPTO huggingface dataset:
Patent GB-881737-A (GB)
Title: New monoazo-dyestuffs containing halogenated acylamino groups and their manufacture and use
Filed: 1958-03-18
Abstract: The invention comprises monoazo dyestuffs which, in the form of the free acids, have the general formula <FORM:0881737/IV (c)/1> in which A is a b -halogenated propionyl group, D is a benzene residue containing no hydroxyl group in O-position to the azo linkage, one X is hydrogen, and the other X is an R-CO-NH- group in which R is a free amino group or the residue of an aliphatic alcohol containing at most 3 carbon atoms and bound through its oxygen atom.  The dyestuffs may be made by coupling a diazo compound of an amine of formula A-NH-D-NH2 with an appropriate naphthol compound. Specified coupling components are 2 - ureido - 8 - hydroxy - naphthalene - 6 - sulphonic acid, 2-ureido-5-hydroxynaphthalene-7-sulphonic acid, and 2-amino-5-hydroxynaphthalene-7-sulphonic acids of which the amino group is bound through a -CO-bridge to the oxygen atom of an alkoxy group, e.g. to a methoxy or ethoxy group or to a group of the formula -OC2H4OCH3.  Specified amines from which the diazo components are formed are 4- and 5-(b -bromo and chloro-propionylamino)-2-amino-benzene-1-sulphonic acid.  The coupling is preferably carried out in an alkaline medium.  If desired, the dyestuffs of the invention may be obtained by subjecting a dyestuff of the formula <FORM:0881737/IV (c)/2> to acylation with the anhydride or a halide of a b -halogenated propionic acid, preferably in the presence of an acid-binding agent such as sodium acetate or sodium carbonate.  In an example, diazotised 5-nitro-2-amino-benzene-1-sulphonic acid is coupled with 6-ureido-1-hydroxynaphthalene-3-sulphonic acid, the nitro group is then reduced to an amino group, and the amino-azo dye thus obtained is acylated with b -bromopropionyl chloride.  The dyestuffs may be isolated by salting out and filtration.  In some cases the whole mixture in which the dye is prepared may be spray dried.  The dyes may be used for dyeing and printing cotton, linen, viscose, silk, wool, leather, polyurethane, and polyamide fibres, and the dyeings may be fixed by heat treatment in the presence of alkali.
Patent GB-398892-A (GB)
Title: Fluid pressure brakes for aircraft wheels
IPC: B64C25/48
Filed: 1932-03-24
Abstract: 398,892. Aircraft wheel-braking system. VICKERS (AVIATION), Ltd. and DUNCAN, T. S., Byfleet Road, Weybridge, Surrey. March 24, 1932, No. 8785. [Class 4.] In a fluid-pressure braking system for aircraft, separate pedals control the brakes on the two sides of the machine through reduci n valves which limit the available braking pressure, other means being provided for byepassing the reducing valves to apply the full pressure to both brakes for parking purposes. Each pedal acts through a spring a<9> and diaphragm a<6> to depress a member a<5> which opens a spring-loaded valve a<3> and closes an exhaust valve a' whereupon fluid from a reservoir b passes through a conduit a<7>, chamber c and conduit c<1> to a brake cylinder d. The diaphragm and spring a<9> ensure that the pressure applied is proportional to the original pedal pressure. The valve a<4> is positively lifted when the pedal is released. When a lever c<7> is moved, a valve c<4> is lowered to shut off the conduit a<7> and a valve c<5> is opened to admit fluid at full pressure to the conduit c<1>. A single lever may be used for actuating the valves c<4>, c<5> on the two sides of the machine. A reducing valve may be provided on the reservoir b so that the fluid may be stored at high pressure without subjecting the brake mechanism to undue stress.
Patent GB-390321-A (GB)
Title: Improvements in iron rollers and methods of manufacturing the same
IPC: C22C37/06
Filed: 1932-03-24
Abstract: A roller for working metal &c. has an iron-alloy surface the solid solutions of which remain stable at high temperatures, the surface being cast round a heated core of cast iron or steel or vice versa. Specified alloys contain (a) about 2,5 per cent carbon, 6-8 per cent chromium, and not more than 0,5 per cent silicon; (b) at least 2,8 per cent carbon, at least 7 per cent chromium, and not more than 0,5 per cent silicon; (c) less than 0,5 per cent carbon and 6-8 per cent manganese or 15-20 per cent nickel.  In (b) tungsten may replace some or all of the chromium, 1 per cent of tungsten being the equivalent of 1,5-2 per cent chromium, while in (c) when nickel and manganese are used together 1 per cent of manganese is the equivalent of 2,2 per cent of nickel.  The Specification as open to inspection under Sect. 91 states that the parts of the roller can be united by known processes.  This subject-matter does not appear in the Specification as accepted.
Patent GB-254392-A (GB)
Title: Improvements in pressure gas producers
IPC: C10J3/80
Filed: 1925-04-02
Abstract: 254,392. Koller, K. April 2, 1925. Producers. - A grateless gas producer is provided with a blast distributor 4 in which the ratio of the cross-sectional area of the outlet openings to the internal cross-sectional area of the distributor is such that the emerging fluid acquires a nozzle velocity whereby the streams of fluid emerging from the distributor will flow along parabolic paths and be consumed when they impinge on the wall of the producer.
Patent GB-1024684-A (GB)
Title: Improvements in or relating to the production of carbonyl compounds
Inventor: HARRIS BRIAN WALTON
IPC: C07C45/30
Filed: 1964-06-04
Abstract: Methyl isobutyl ketone is produced from 4-methyl pentene-1 by reaction at an elevated temperature with a mixture of a platinum group metal compound, cupric chloride, cupric acetate and water, having a pH of 1.7-2.4 at 18 DEG  C.  The platinum group metal compound may be a palladium salt, e.g. palladous chloride. The ketone is recovered from the reaction mixture by solvent extraction, fractional, extractive or azeotropic distillation, the residue of olefine being treated with an isomerization catalyst, e.g. palladous chloride, to reconvert the olefinic isomers to the original olefine which is then recycled.  Regeneration of cupric chloride from the cuprous chloride formed is achieved by treatment with an oxidizing agent, e.g. molecular oxygen, either simultaneously with the reaction or as a second stage.  Reference has been directed by the Comptroller to Specifications 884962 and 878777.
Patent GB-1061523-A (GB)
Title: Resistance butt-welding machine
Inventor: PATON BORIS EVGENJEVICH
IPC: B23K11/04
Filed: 1964-03-03
Abstract: 1,061,523. Welding by pressure. INSTITUTE ELEKTROSVARKI " E. O. PATON ". March 3, 1964, No. 8886/64. Heading B3R. An electric resistance butt welder comprises a fixed clamping head 3, Fig. 2 (not shown), a movable clamping head, two rods 5 mounted in the head 3 and symmetrically arranged relative to and in a common plane with the work to function as guides for the movable head and a pair of hydraulic piston-cylinder devices for moving the movable head, the pistons 8 of which are secured to the guide rods and the cylinders 7 of which are secured to the movable heads. Hydraulic presses clamp the workpieces in each head the lower clamping jaw of each press being carried on a frame supporting the cylinder thereof and the upper jaw being carried on the piston which is withdrawn by a separate cylinder 29 or 30. An electric drive 12 effects horizontal movement of the press in the fixed head and an electric drive 13 effects vertical movement of the press in the movable head. Welding transformers 14, 15 housed in the fixed column are connected to their adjacent clamping jaws and by flexible connections 23 to the clamping jaws of the movable head. A slide valve 33 and drive 34 supply liquid to the cylinders 7 to advance the workpieces 6, initially fed into the machine over rollers 35, 36, until they abut when current is supplied. Finally the slide valve allows a greater flow of liquid to upset the workpieces.
Patent GB-169141-A (GB)
Title: An improved lamp holder for electric glow lamps
IPC: H01R33/97
Filed: 1921-03-23
Abstract: 169,141. Kemper, E. Sept. 13, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Holders.-To prevent screw-cap bulbs from being removed from holders, the threaded part e of the holder with which they engage is inaccessible while a bulb is in position and rotates .with the bulb if an attempt is made to remove it. The tube e is rotatably connected to a fixed tube c, but is prevented from turning by a pawl i when a lamp is being inserted. To remove a bulb the glass must be broken away first to allow an insulating-ring g to be withdrawn from the outer casing f, and in the space thus provided a tool is inserted to hold the tube e stationary while the remainder of the bulb is removed.
Patent GB-867849-A (GB)
Title: Improvements in or relating to axial flow compressors, and their applications
IPC: F02C7/047
Filed: 1958-03-20
Abstract: 867,849. Axial-flow compressors; gas turbine plant. SZYDLOWSKI, J. March 20, 1958 [April 4, 1957], No. 8979/58. Classes 110 (1) and 110 (3). A rotational velocity is imparted to the inlet axial fluid stream of an axial-flow compressor upstream of the impeller blades by injecting an auxiliary fluid into the stream through a number of oblique or radial orifices, the direction and shape of which are respectively so determined that the auxiliary fluid penetrates into the stream and produces tangential deviations of the stream around its axis. In the axial-flow compressor shown in Fig. 1, air is bled from the discharge through holes 5 into.an annular manifold 6 and conveyed through ducts 7 to a further annular manifold 8, from which it is returned to the intake through nozzles 9. The nozzles 9 are inclined to the radial direction to impart whirl to the returned air. The returned air mixes with the main stream of air in the intake and imparts pre-whirl to it. The flow of the returned air is controlled by a valve 10 in each duct 7, the valves being connected by bevel gearing to a common control member 13; the control may be automatic, in accordance with the pressure, output, temperature or speed of the compressor. Additional nozzles 16, inclined oppositely to the nozzles 9 and fed from the manifold 6 through ducts 14 and a manifold 15, may be provided, control valves similar to the valves 10 being provided in the ducts 14. Instead of being provided in the outer wall of the intake, the nozzles may be provided in a stationary central fairing in the intake. Fig. 6 shows an axial-flow compressor in which air is bled from an intermediate stage through holes 36 into an annular manifold 37 and returned to the intake through nozzles 39 which have the shape of a guide-blade cross-section, the returned streams of air acting as virtual guide-blades to impart pre-whirl to the main air stream. The nozzles 39 may be inclined to the radial direction to impart whirl velocity to the returned air. Where the compressor forms part of a jetpropulsion engine, the returned air, being heated by the compression it has undergone, acts as a de-icing agent. Additionally, a deicing fluid may be injected. Instead of being bled from the compressor, the auxiliary air may be derived from a different source, and a fluid other than air may be used.
Patent GB-723249-A (GB)
Title: Improvements in or relating to a process for removing material such as rust, scale and other foreign matter from a metal surface
Filed: 1952-04-09
Abstract: Metal surfaces are treated to remove materials such as rust, scale or marine growths by coating them with an emulsifying agent in oil to form, in the presence of water, a viscous gel, and then reducing the viscosity of the gel by applying an oil-soluble thinner thereto.  As applied to the flotation chambers of a dry dock, there is supplied on the surface of the water in the chamber an agent consisting of 4-6 parts by weight of an organic acid or fatty acid soap of an alkaline earth metal, 2-3 parts by weight of pine oil, and 90-100 parts by weight of a petroleum oil.  A viscous gel is formed on the surfaces of the chamber over a period of days and by virtue of its swelling properties rust and scale are mechanically broken away from the surfaces.  The addition to the chamber of a thinner consisting of 8-12 parts by weight of phenols and 90-110 parts by weight of petroleum oil, breaks the gel and allows it to flow over the surfaces, taking with it the rust or scale.  A mixture of both agents may be used to prevent further rusting or scaling.
Patent GB-1135721-A (GB)
Title: A container for coins
Inventor: GROUNDS ALAN FRANK
IPC: G07D9/02
Filed: 1967-02-24
Abstract: 1,135,721. Collecting boxes. ALAN GROUNDS ASSOCIATES Ltd. 24 Feb., 1967, No. 9069/67. Heading B8P. A coin collecting box consists of a first hollow portion 1 with a coin slot at the top and a second handle portion 2 which is tapered from both ends to an intermediate section 3 of minimum cross-section. The two parts may be of plastics and joined by a snap action. The coin slot may be in a removable closure member, which may be hinged to the part 1 by an integral hinge, for easy removal of coins and there may also be a coin slot at the opposite end.
Patent GB-732104-A (GB)
Title: Improvements relating to the cleaning of heat-exchanger tubes
IPC: F28G7/00
Filed: 1951-04-18
Abstract: 732,104. Cleaning tubes. AKTIEBOLAGET SVENSKA MASKINVERKEN. April 18, 1951 [Dec. 29, 1950], No. 9105/51. Class 99 (2). [Also in Group XIII] In a heat-exchanger comprising tubes or tube coils containing a heat-absorbing medium, the external surfaces of those tubes or coils are cleaned by subjecting different parts thereof to different irregular vibbratory motion. As shown in Fig. 1, a steam boiler comprises tube coils 2 suspended in rows in side-byside relationship, every alternate row of coils depending lower than the adjacent rows and being engaged by a notched bar 4 connected to a piston 5 working in a cylinder 6 supplied with compressed air through a conduit 9. A magnetactuated valve 10 controlled by an electric relay 11 and interposed in the conduit 9 admits compressed air to the cylinder so that the piston urges the bar 4 in one direction and at the end of the stroke of the piston the valve 10 shuts off the supply of air and a spring 7 urges the piston and the bar in the reverse direction whereby the coils connected to the bar strike the adjacent coils to remove accumulations of soot and dust. The vibration initiating means may be operated at regular or irregular intervals. In modifications, (a), Fig. 2 (not shown), compressed air is supplied alternately to each end of the cylinder 6 and through a slide-valve operated by electromagnets or cam means, (b), Fig. 5 (not shown), the tube coils are connected to rods reciprocated by a link and crank mechanism or by manuallyoperable means external of the heat-exchanger; alternatively, the rods strike against the tubes, and (c) flywheel vibrators operating at irregular numbers of revolutions are rotatably supported by the tubes.
Patent GB-345812-A (GB)
Title: Improvements relating to the manufacture of artificial fibres and films
IPC: D01F2/08
Filed: 1930-03-21
Abstract: In the manufacture of regenerated cellulose filaments or films by precipitating a cellulose solution with a concentrated mineral acid without stretching, degradation of the products is avoided by adding to the precipitating bath a pyridine base that is miscible with the bath, or a salt of such a base.  According to the examples, (1) a cellulose xanthate solution is spun into sulphuric acid of 52 DEG B<\>ae. to which pyridine has been added; (2) an ammoniacal-copper solution of cellulose is spun into phosphoric acid of 55 DEG  B<\>ae. to which a mixture of pyridine bases has been added.
Patent GB-116922-A (GB)
Title: Improvements in or relating to Apparatus for Exposing Kinematograph Positive Films.
Inventor: HEPWORTH CECIL MILTON
IPC: G03B27/16
Filed: 1917-06-26
Abstract: 116,922. Hepworth, C. M. June 26, 1917. Regulating - switches; actuating. - Apparatus for printing kinematograph positive films from a negative having sections varying in density comprises a shaft B, Fig. 1, having a toothed disk C fast on it, a loosely mounted toothed disk E, and a frictionally mounted driving pulley G, the disk E carrying a member E<3> adapted to contact with the studs F<1> of a rheostat to control the intensity of the printing light. The disk C is connected to a sleeve C<1> by a spring C<5>, a pin C<3> carried by the disk projecting into a slot C<2> in the sleeve, and the sleeve C' is connected to the disk E by a spiral spring D. The shaft B is normally kept stationary by the engagement of a pallet of an escapement mechanism J<4> with the disk C, but each time a contact device N<3>, Fig. 3, engages a notch or slot M<2> in the negative, an electro-magnet is operated to allow the disk C to move one step, the disk E being meanwhile locked by a stop on the armature of an electro-magnet K, the spring D being thus wound up. Subsequently a contact device N engage a notch M<1> in the negative, the electromagnet is energized to free the disk E, and the spring D rotates the disk and member E<3> until a projection E<1> on the disk encounters a stop C<4> on the sleeve C'.
Patent GB-210325-A (GB)
Title: Improvements in or relating to cleaning and/or polishing devices
IPC: A47L13/142
Filed: 1923-04-05
Abstract: 210,325. Vanderschelden, L., and Vanderschelden, E. April 5, 1923. Mops constructed for wringing. -A cleaning or polishing mop constructed for wringing by relative twisting movements of the parts in the position shown, comprises a cylindrically arranged cloth or the like 7 attached at its upper edge by a rubber ring, wire &c. 9 to a sliding sleeve 5 with finger-loop 6, and at its lower edge to a perforated tubular extension 3 of a handle 1, the tube being open at the bottom. The upper and lower edges of the cloth are notched to facilitate attachment, and the cloth may be pinned to the tube. In use, the sleeve 5 is at the lower end of the tube. Reference has been directed by the Comptroller to Specifications 8530/00, 9705/00. 123,083, 1@32,891, 181,529, 187,637, and 191,447.
Patent GB-341785-A (GB)
Title: Improvements in and relating to the manufacture of hollow articles from fibrous pulp
IPC: D21J7/00
Filed: 1930-03-25
Abstract: 341,785. Moulding pulp. PULP INDUSTRIES, Ltd., 19, New Bridge Street, London. March 25, 1930, No. 9477. Convention date, July 6, 1929. [Class 87 (ii).] In apparatus for moulding hollow articles from fibrous pulp in moulds with permeable walls by the aid of a heated gaseous pressure medium, a regulatable part of the medium escapes through an adjustable valve while the remainder passes through the walls of the article and the mould. Fig. 1 shows a divided mould into which the pulp and the heated pressure medium enter by the tube c. Part of the pressure medium escapes through the valved pipe d after having given up part of its heat to the material. Fig. 2 shows a modification in which part of the pressure medium escapes by the central pipe d surrounded by a member e which partly fills the mould. The mouth of the tube d is placed so that it collects portions of the medium which have been in contact with the walls of the article. The tubes d may be led to the pulp-containers to utilize the residual waste heat for heating the pulp. It is stated that the present process enables steam to be used as the pressure medium. Specifications 206,411 and 243,343, [both in Class 87 (ii), Moulding plastic &c. substances], are referred to.
Patent GB-496368-A (GB)
Title: Water tube steam boiler
IPC: F22B21/34
Filed: 1938-03-28
Abstract: 496,368. Water tube steam boilers. BAUER, G. March 28, 1938, No. 9482. [Class 123 (ii)] In a boiler having combustion chambers i, k bounded by radiation-heated tubes and separated by tubes o, p connected to upper and lower drums a, b, the inner tubes o are screened from the combustion chambers by a number of rows of radiation-heated tubes p and serve as the sole downcomers for both sides of the boiler. The lower ends of the tubes o, p may be bent outwardly to open into two lower drums which are spaced apart sufficiently to leave a space for a central gangway. Specification 469,595 is referred to.
Patent GB-756989-A (GB)
Title: Apparatus for supplying power to a movable carriage or tool
IPC: E21C35/00
Filed: 1954-04-01
Abstract: 756,989. Slack take-up device for cables. RUSHWORTH, D. June 20, 1955 [April 1, 1954], No. 9512/54. Class 78 (2). Apparatus for supplying power to a movable carriage K is such that the power supply cable extends from supply point B round a pulley C mounted on a trolley D running on an overhead support E, back over a pulley F and round one or more guide pulleys H, J to the carriage K, the trolley being connected to the end of a tensioning cable M to which tension is applied by reel N to power supply cable beind carried by rollers G. The reel N may be spring-wound or motor-driven.
Patent GB-288150-A (GB)
Title: Improvements in or relating to direction indicators for use on vehicles
IPC: B60Q1/14
Filed: 1928-03-29
Abstract: 288,150. Ceskomoravska - Kolben- Danek Akciova Spolecnost. April 1, 1927, [Convention date]. Road-traffic signals on vehicles.-For indicating a proposed turn to the left or right, a lever 6 rotatably mounted above the steering-wheel 3 of a vehicle is moved by hand in the corresponding direction to actuate a signal-switch 4 of known kind, and by means of a screw mounting or other device this rotational movement of the lever 6 produces also an axial movement of the lever up or down, so that spring-held catches 9, 10 are introduced into the path of an abutment 8 on the steering-wheel, the initial return movement of which is thereby used to re-set the lever 6. The axial traverse of the lever 6 may be produced by a cam surface on the casing 4; or the lever 6, or a part of it, may be pivoted about a horizontal axis and caused to swing up and down by cam slots, as the lever turns. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 10, (Cancelled) wherein the rotatable lever 6 actuating the switch 4 carries a verticallymovable member 22 which is projected downwards, as it leaves a recess 4<11>, into the path of a spring-pressed abutment 24 on the steering- wheel 3. This subject-matter does not appear in the Specification as accepted.
Patent GB-1128887-A (GB)
Title: Improvements in or relating to sealing and forced-air circulation arrangement for electric motor controls
Inventor: DRENNING JOHN WILLIAM
IPC: H01F27/08
Filed: 1967-02-28
Abstract: 1,128,887. Motor controls. KOPPERS CO. Inc. 28 Feb., 1967, No. 9579/67. Heading H1T. A housing 10 and means for positively circulating the air within the housing is provided to seal a motor control unit, which may be as described in U.S. Specification 2,967,270, the control unit comprising an autotransformer 51 with wipers having variable positioning to control the speed of a D.C. motor and means for changing the position of the wipers, the air circulation cooling the unit to maintain it within a predetermined temperature range. The air circulation is provided by a further housing 53 about the autotransformer and a duct 55 in which is mounted a fan and vanes (Figs. 3 and 4, not shown), for forcing air over the windings of the autotransformer in a uniform manner. A door 11 on the housing 10 is provided with a sealing gasket 13.