baber/WOPTO huggingface dataset:
Patent GB-737189-A (GB)
Title: Manufacture of new chromiferous monoazo-dyestuffs
Filed: 1952-12-09
Abstract: The invention comprises complex chromium compounds of monoazo-dyestuffs of formula <FORM:0737189/IV (c)/1> where R is a benzene residue free of sulphonic or carboxylic acid groups, which is bound to the OH group in the 1-position and to the azo linkage in the 2-position, and contains a 5-methylsulphone group.  They may be made by treating one or two dyestuffs of the above formula with agents yielding chromium.  Generally less than one, but at least one half atomic proportion of chromium per molecular proportion of dyestuff is used or chroming is effected in a weakly acid to alkaline medium. Advantageously complex chromium compounds of aliphatic dicarboxylic or oxy-carboxylic acids, especially aromatic oxycarboxylic acids, are used for chroming.  Dyestuffs of the above formula are made by coupling, advantageously in an alkaline medium, the appropriate diazotized 2-aminophenol with 5,8-dichloro-a -naphthol.  The aminophenol may contain further substituents, e.g. methyl, nitro, methoxy and acetylamino groups or a chlorine atom advantageously in the 4 or 6-positions.  Specified aminophenols are 4-methyl- and -chloro-2-amino - 1 - oxybenzene - 5 - methylsulphone and 2 - amino - 1 - oxybenzene - 5 - methylsulphone.  Preferred are complex compounds derived from a single dyestuff.  The dyestuffs are used in dyeing plastic materials, resins and lacquers and particularly animal materials such as silk, wool, leather, superpolyamides and superpolymethanes.  Weakly acid to weakly alkaline dye-baths are used and blue tints obtained.  In an example, 2-amino-1-oxybenzene- and 4-chloro-2-amino-1-oxybenzene-5-methylsulphones are diazotized and coupled with the dichloronaphthol and the product chromed. Specifications 637,404 and 667,168 are referred to.ALSO:2 - Amino - 1 - oxybenzene - 5 - methylsulphones are made by reducing a 1,2-benzoxazolone-5-sulphonic acid halide with sodium sulphite, methylating the sulphinic acid thus produced with, e.g., dimethyl sulphate, and splitting the ring by treatment with an alkali metal or alkaline earth metal hydroxide.  In an example, 1,2-benzoxazolone- and 4-chloro-1,2-benzoxazolone-5-sulphonyl chlorides are converted to the corresponding phenolic-5-methylsulphones, the 4-chloro-oxazolone-sulphonyl chloride being made by treating 4-chloro-1,2-benzoxazolone with chlorosulphonic acid.
Patent GB-322298-A (GB)
Title: Improvements relating to tramway and other vehicle brakes
IPC: B60T13/36
Filed: 1928-10-27
Abstract: 322,298. Electro-Mechanical Brake Co., Ltd., and Catlin, L. A. Oct. 27, 1928. Fluid-pressure; skid.-An extra handle for operating the brake valves of tramway or other electric vehicles is provided in addition to the controller handle, with the object of enabling a single set of valves to be actuated by either handle independently. To the spindle f of the controller handle c, Fig. 1, is keyed a pair of cams d, e which operate respectively the admission valve a through the roller g and pivoted lever h, and the release valve b through roller i mounted on pivoted lever j, spring n and the extra handle k, which is pivoted coaxially with levers h, j. Handle k operates the release valve directly, and the admission valve through the medium of the projection l which engages the lever h. Another projection m is provided on the extra handle, which projection engages the lever h when the controller handle is moved to open the admission valve, thus preventing the extra handle opening the release valve. If the controller handle jams with the release valve open, the latter can be closed by using the extra handle to compress the spring n. In a second arrangement only one cam d, Fig. 2, is mounted on the controller handle spindle f, actuating the release valve b through the roller t mounted on lever s, and the spring n, which is fixed between lever s and extra handle k as in Fig. 1. The admission valve is actuated by the extra handle only, while the release valve can be operated by either handle independently. The release valve is opened when the controller handle is turned in either direction for applying power to the wheels, or for applying the electromagnetic brakes, while if the controller handle jams, the extra handle can be used for applying the air brakes by compressing spring n thus closing the release and opening the admission valve. In an arrangement for operating wheel brakes and track brakes, the air pressure valves for the two brakes may be arranged in line so that the operating lever first actuates the wheel brake and then the track brake, provision being made, if desired, for releasing the wheel brakes before the track brakes are applied.
Patent GB-731300-A (GB)
Title: Apparatus for joining pieces of laminar material in strip or sheet form
IPC: E04F13/08
Filed: 1952-12-10
Abstract: 731,300. Seaming non-metallic sheet material; compound sheet materials. NASH, R. J. Dec. 2, 1953 [Dec. 10, 1952], No. 31261/52. Classes 42 (1) and 140. Apparatus for joining pieces of laminar material in sheet or strip form, e.g. veneers or cardboard, comprises a perforated endless conveyer, a suction chamber beneath one side of the conveyer, a feed hopper for the laminar pieces above the said side of the conveyer, a second conveyer consisting of a pair or pairs of rollers or an endless belt adapted to receive the assembled laminar pieces from the first conveyer and to set up a sufficient resistance to movement of the pieces to maintain their contiguous edges in close contact, and means for securing the pieces together in the form of a continuous strip or sheet. As shown, Fig. 2, laminar pieces d are fed one by one from a hopper c transversely or diagonally on to a perforated conveyer a on which they are retained by suction through a chamber e. A second conveyer n, similar to a and having a suction chamber p, receives the pieces d and is driven slightly slower than a so as to maintain the pieces in close contact. A third conveyer q receives the pieces from conveyer n and applies adhesive paper strips m and to the surfaces of the pieces to form them into a continuous band. In another embodiment, conveyer n is replaced by feed rollers, the pieces d being supported by parallel guides and having adhesive paper strip applied to one or both surfaces. In a further embodiment, the edges of pieces d are treated with a thermosetting or thermoplastic adhesive, conveyer n is increased in length and an electric or other heater is located below conveyer n so as to bond the edges of the pieces carried in the under surface thereof.
Patent GB-769112-A (GB)
Title: Improvements in or relating to centre weft fork motions for looms
IPC: D03D51/34
Filed: 1954-10-29
Abstract: 769,112. Centre weft fork motion for looms. HARGREAVES, N. Oct. 31, 1955 [Oct. 29, 1954], No. 31315/54. Class 142 (2). In a centre weft fork motion having a cam slide engaged by a weft fork tippler, the slide is moved positively by the usual motion rod connected to the breast beam in one direction only, movement in the opposite direction being effected by a spring. A further spring 27, as described in Specification 736,771, presses the tippler on to the slide, and an adjustable bar 30 is engaged by the spring just before the fork feels the weft so that the spring pressure is removed from the fork. The slide 16 is moved in one direction by a projection 35 which is engaged by a member 40 sliding on a bar 36 and connected to the motion rod 42. Movement in the opposite direction is effected by a spring 34 connected to the slide by a strap 32.
Patent GB-446578-A (GB)
Title: Air outlet device for use in ventilation
IPC: B63J2/10
Filed: 1934-11-01
Abstract: 446,578. Ventilators. MARSHALL, J., 4, Westbourne Gardens, Glasgow. Nov. 1, 1934, Nos. 31337 and 33679. [Class 137] A ventilation air outlet fitting has an inner outlet passage 8 delivering air as a high velocity stream, an outer divergent outlet 3 disposed round the inner passage for delivering diffused air at a low velocity and valve means operated preferably from the front, and diverting the air through either passage or partly through both. Air is delivered under pressure at 22 to a part-spheroidal or part-spherical casing 5 and is guided to pass round or through the tube 8 by a pivoted flap valve comprising two flat members 10 hinged at 12a in the tube 8 and operated by a rod 13 with a slotted link 24 engaging pins 21 on flanges 11 of the members 10. When the members 10 are closed together by pulling out the rod 13, air passes round the tube 8 and is diffused by a flange 25 thereon. The casing 5 is angularly adjustable on pivots within a bearing 6 which is rotatable within flanges 7 ; or the bearing 6 may be fixed and have an extension 6b cutting off the air supply when it covers the end 22 of the air inlet and the casing 5 may be universally adjustable therein. In Fig. 5, a stationary streamlined baffle 27 is placed within the casing 5, and a tube 26 is slidable inwards against the air inlet 22 so that air passes within the tube as a high-velocity stream. On sliding the tube 26 out against the baffle 27, air passes round the tube and is discharged at a low velocity diffused between the tube 26 and the casing 5 which carries a bearing 29.
Patent GB-1370481-A (GB)
Title: Horticultural greenhouses
IPC: A01G9/00
Filed: 1972-05-12
Abstract: 1370481 Greenhouses SIMPLEX OF CAMBRIDGE Ltd 12 May 1972 [5 July 1971] 31421/71 Heading E1A A demountable greenhouse consists of three room units 1 which are detachably hinged together at 5, 6 whereby any given unit can be unhinged along one side and opened out relative to the other units to give access to the greenhouse or allow ventilation, see Fig. 2 (not shown). Each unit is constructed from a roof section 3, a wall section 2 having two adjacent sides and a floor section 4 provided with four castors 7, for constructional details of the sections and their mode of interconnection Fig. 5 (not shown), should be referred to. The wall uprights 20 are slotted at 24 to receive the hooked shaped ends of a bent wire supports which in, turn accommodate plant-pot trays 27 of moulded plastics. The sections are made of zinc-coated mild steel finished in enamel paint or coated with a plastics material.
Patent GB-175043-A (GB)
Title: An improved signalling apparatus
IPC: G08B3/14
Filed: 1920-11-06
Abstract: 175,043. Stevenson, C. A., and Moyes, J. Nov. 6,1920. Fluid - actuated valves.-The valves of an air pump used to give an intermittent supply of air to a gasexplosion signalling device are positively operated with a quick throw-over movement by means controlled by the reciprocating member of an occulting device of ordinary type used to give an intermittent supply of gas to the signalling device. Adjustable tappets on a rod (not shown) reciprocated by the occulting device, serve to oscillate a shaft 58 actuating the valves in a chamber E. Chamber- E has two compartments 54, 56 communicating through a port 81 controlled by a valve 75, and has ports 78, 79, 80. Port 79 communicates with the pump. Port 80 communicates with the signalling device. Port 78 opens to atmosphere and is controlled by valve 74. Valves 74, 75 are opened alternately by an oscillating member 62 pivoted at 59 and given a quick throw-over movement. A member 61 secured to the shaft 58 haspins 67 adapted to engage pins 64 on a member 60 loosely mounted on shaft 58 by a slot connection allowing a limited vertical movement. A spring (not shown) tends to raise member 60, but when this member is rocked by member 61 it isdepressed as a projection 65 rides under a fixed adjustable stud 84, and then rises under the action of the spring. The side of a triangular opening 66 in member 60 engages a pin 82 secured to member 62, which is thereby moved over a dead-centre, and given a quick completion of this movement by an adjustable spring 85, thusquickly closing one of the valves 74, 75 and opening the other. In operation, air is drawn into the pump through ports 78, 79, and is then forced' to the signalling device through ports 79, 81, 80.
Patent GB-306202-A (GB)
Title: An improved advertising device
IPC: G09F19/00
Filed: 1927-11-23
Abstract: 306,202. Martin, S. C. Nov. 23, 1927. Elements moving always in one plane, rotating.-A changing advertising device comprises a stationary panel &c. A carrying a display in front of which rotate two or more discs B, C positively driven at different speeds. The discs B, C all have openings H of the same size and shape and spaced apart by unbroken portions not less in size than the openings, so that complete registration and complete obturation are obtained at successive intervals. The spindle of one disc passes coaxially through the hollow shaft of the other. The discs may be transparent for illumination from behind.
Patent GB-538226-A (GB)
Title: An improved device for detecting and salvaging submerged articles or structures of ferrous metals
IPC: B63C7/22
Filed: 1939-12-05
Abstract: 538,226. Raising sunken ships ; buoys ; sucker fastenings. PITTER, W. C. Dec. 5, 1939. No. 31520. [Classes 68 (i) and 68 (ii)] [Also in Group XXV] A device for seizing ferrous articles comprises a suction disc 9 within which are mounted one or more magnets 10 or electromagnets which deform the disc and cause a suction force assisting the magnets in adhering to the article, The disc may have a central stem 14 with boss bearing teeth 20 to prevent slipping when force is applied as at A to the stern, a bronze disc 15 deforming the suction disc as indicated in the figure. One or more devices may be attached to a cable secured to a buoy and trailed from a boat from which the buoy is pulled when a submerged article has been seized. The buoy may be arranged to sink below the surface if drawn through the water by the motion of the article, such as a submarine, by the provision of lateral fins on a buoy constituted as a cylinder, weighted to lie on its side, or the buoy may have air cushions within a rubber sheathing which are collapsed by traction on a rod on which they are mounted, thus increasing the density of the buoy. The cable may carry or constitute a tube connecting a bore in the stem to valves operable from the boat or buoy to admit water or air to relieve the vacuum in the-suction disc or discs. These valves may be arranged in the stem 14. Two suction devices may be secured back to back to the ends of a common stem.
Patent GB-845200-A (GB)
Title: Process for polymerization of isoprene and polymers so produced
IPC: C08F4/64
Filed: 1955-10-17
Abstract: Cis-1, 4-polyisoprene is prepared by polymerizing isoprene in the presence of titanium tetrachloride and a trialkyl aluminium, e.g. triethyl tripropyl or tributyl aluminium.  There may be used 0.05-20 mols of titanium tetrachloride per mol of trialkyl aluminium using 0.01-15% of catalyst composition based on monomer.  A diluent such as iso-octane, cyclohexane, methylcyclohexane, benzene or toluene may be present. Temperatures of -100 to 100 DEG C. may be used preferably with sufficient pressure to maintain the liquid phase.  Continuous or batch processes may be used, the latter employing reaction times up to 24 hours.  Up to 1,000 parts per million of water may be present. The catalyst may be destroyed by addition of an alcohol.
Patent GB-1383056-A (GB)
Title: Analogue computers
IPC: G06G7/57
Filed: 1972-07-06
Abstract: 1383056 Measuring mass flow-rate electrically ITT INDUSTRIES INC 6 July 1972 [8 July 1971]  31666/72 Heading G1N The mass flow-rate of a fluid through a pipeline is determined by multiplying a density signal and a differential pressure signal, and deriving the square root of the product. The differential pressure across an orifice in the pipeline is applied to a cantilever beam 20, Fig.2, carrying a strain gauge resistor 22, 23 on each side, connected in a bridge circuit 25, Fig.3, which is fed with a current proportional to fluid density, measured by e.g. the densitometer of Specification 1328888 and fed in as a voltage signal at terminal 26. Hence the bridge output at terminal 27 is proportional to the square of the mass flow-rate, and is fed to a computer, Fig.4, where its square root is obtained as the frequency of a pulse train and the pulses are counted to produce a digital indication of the total fluid mass flow. The input current signal at terminal 163, Fig.4, is integrated at 166 to produce waveform A,  Fig.5, and also inverted at 165 and integrated at 167 to produce waveform B, the integrators being controlled through FET's 216, 203, 234, 249 and 261, 267 by gating signals from switching circuit 179. The waveforms A, B are added at junction 265 to form waveform C, which is integrated at 168 to produce waveform D. The maximum and minimum peak values of waveform D are sensed by threshold detectors 282, 283 whose outputs set and reset a flip-flop 178 to produce a pulse train which controls the switching circuit 179 and is therefore proportional to the square root of the input current signal, and is integrated at 162.
Patent GB-860659-A (GB)
Title: Improvements in or relating to mastic compositions
IPC: C08L95/00
Filed: 1959-09-17
Abstract: A liquid bitumen-based mastic composition comprises a binder component including a mixture of hard natural asphalt, soft petroleum asphalt and a resinous chlorinated fire-retardant compound dissolved or dispersed in a mixture of inflammable organic solvents and non-inflammable organic solvents having substantially equal volatility.  The hard asphalt may be gilsonite; the soft petroleum asphalt may be obtained from residues from petroleum refining, or from residues from distillation of petroleum, vegetable oils, wood or coal; the inflammable solvent may include mineral spirits, xylene and toluene; and the non-inflammable solvent may include trichloroethane and tetrachloroethylene.  The fire-retardant compound may be chlorinated paraffin wax or chlorinated biphenyl, terphenyl, or polyphenyls.  Mineral fillers such as asbestos, glass fibres, mica, cork, pulverized slate, expanded vermiculite or perlite, antimony oxide, or calcium carbonate or silicate may be included.  A powdered metal such as aluminium may also be included.  A small proportion of an evaporated rubber latex may be added as a tackifier.
Patent GB-299622-A (GB)
Title: Expanding holdfast or retainer
IPC: E01B9/12
Filed: 1927-11-25
Abstract: 299,622. Henderson, A. Nov. 25, 1927. Anchoring tram rails. -An anchoring device for a bolt comprises a sleeve A, placed on the bolt C, having wedgeshaped holding members E - - H pivoted thereon which are forced outwards bv a tubular sleeve K when the nut P which secures the work is tightened. The holding members are formed with inner flanges which engage stops D on the sleeve A in the open and closed positions. The inclined faces of the holding members may be serrated. The device is shown in Fig. 8 applied to anchoring tramway rails to a concrete bed L the holding members extending underneath the bed; an inspection box R is provided.
Patent GB-372240-A (GB)
Title: Improvements in or relating to friction wheel spindle presses for use in the manufacture of ceramic plates
IPC: B30B1/22
Filed: 1931-11-17
Abstract: 372,240. Moulding plates in stationary-mould machines ; presses. DORST, O., 10, Gartenstrasse, Oberlind, Thuringia, Germany. Nov. 17, 1931, No. 31852. [Class 87 (ii).] A screw press driven by friction-gearing is started and stopped through the agency of a cam controlled by a clutch which is operated by a rotating abutment.on the pressure screw spindle. Thus, at a certain point in the downward travel of the ram the projection 30 on the screw spindle 4 contacts with a lever and exerts a pull on the link 32 which raises the lever 26 against the action of the spring 29 to release a latch 27 and thus allows the spring 25 to move the lever 23 to engage the clutch members 19, 20. The clutch rotates the cam 14 through the medium of the belt drive 15, and the cam communicates movement to the verticallysliding rod 7 which slides the friction wheels 1, 2 axially through the agency of the bent lever 6. The cam is shaped to give a preliminary downward drive of the screw for initial pressure, a short upward drive for de-aeration, a second downward drive for the main pressure and a final upward drive to permit removal of the moulding article, which continues until a projection 44 moving with the ram strikes a member 46 on the rod 7 and reverses the drive to commence the next operation. After one complete revolution of the cam, the clutch is uncoupled temporarily by a wedge-shaped face cam on the outer surface of the disc 21 which engages the latch 27 and forces both levers 23, 26 rearwardly against the action of the spring 25. A lateral stop 35, Fig. 7, engages the side of the projection 27 and ensures that the cam always comes to rest in the same position. The projection on the cam which produces the main pressure is adjustable both radially and peripherally.
Patent GB-761252-A (GB)
Title: Improvements in or relating to separation of metals
Inventor: HEALY THOMAS VICTOR
IPC: C01G1/00
Filed: 1953-11-18
Abstract: 761,252. Separating metallic compounds. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 18, 1954 [Nov. 18, 1953], No. 32036/53. Class 1(3) Metals which form water-insoluble basic compounds from nitrate solutions at pH values up to 3 are separated from other metals by treating an aqueous solution of the metal nitrates with formaldehyde at a temperature at which the latter reacts with the nitration, to precipitate a basic compound. In the example, ferric iron is separated from nickel and chromium: it can also be separated from cerium and copper, and zirconium and tin may be separated from nickel, chromium, copper and cerium. The formaldehyde is preferably passed as a gas or aqueous solution or as paraformaldehyde into a boiling solution. The Provisional Specification is not limited to metals forming basic compounds at pH values up to 3: moreover it refers to successive precipitation of different metals by continued addition of formaldehyde. In the example; from a ferric/zirconium nitrate solution, a basic compound of each metal is separately precipitated.
Patent GB-1437367-A (GB)
Title: Continuous casting of copper bars by a casting wheel
IPC: B22D11/06
Filed: 1973-07-05
Abstract: 1437367 Continuous casting SOUTHWIRE CO 5 July 1973 [5 Oct 1972] 32027/73 Heading B3F In a casting wheel 30 of a wheel-and-belt machine having a peripheral groove defined by two side walls and a bottom wall, and constructed of steel, at least an upper section of each of the side walls is inclined at a draft angle α to the radial direction of the wheel in the range of 11¢ to 14¢ degrees. Upper and lower sections of each wall may be inclined at different angles, the upper having a draft angle of 11¢ to 14¢ degrees and the lower an angle of 9¢ degrees. After casting a copper bar, it is hot-rolled to form rod. The draft angle a before pouring is less than 14¢ degrees and exceeds by 2 to 5 degrees the angle α (not less than 9¢ degrees) after solidification of the copper.
Patent GB-1396534-A (GB)
Title: Process for diazotizing aromatic amines
IPC: C07C/
Filed: 1972-07-10
Abstract: 1396534 Diazotization of aromatic amines HOECHST AG 10 July 1972 [10 July 1971] 32123/72 Heading C2C Aromatic diazonium compounds are obtained by diazotizing aromatic amines with a compound containing a nitrosyl group, e.g. nitrosyl sulphuric acid or nitrosyl chloride, in a substantially anhydrous non-acidic medium comprising at least one heterocyclic base, e.g. pyridine, quinoline, picoline or lutidine. The weight of heterocyclic base used is preferably at least 5 times the weight of the amine to be diazotized. Examples are given wherein p-toluidine and 2- naphthylamine are diazotized.