baber/WOPTO huggingface dataset:
Patent GB-285572-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D1/02
Filed: 1926-11-18
Abstract: 285,572. Parsons, Sir C. A., and Anderson, E. H. B. Nov. 18. 1926. Motor power plant.-In a turbine comprising cruising impulse and reaction blading a, b, and main impulse and reaction blading c, d, a by-pass D fitted with a valve E is provided. This bye-pass is opened at intermediate powers, the main regulating valve C being closed and the cruising regulating valve opened. Steam then passes through the blading a, bye-pass D, and blading d. The bye-pass may also be opened at full power when the valve C is opened and the valve B is closed, so that the low-pressure steam may circulate freely through the cruising blades a, b. At cruising powers the valve C and bye-pass D are closed, and the valve B is opened, steam flowing through the -blading a, b and bye-passing the blading c, by way of disc apertures f or other means, to reach the blading d.
Patent GB-715905-A (GB)
Title: Improvements relating to core drills
IPC: E21B10/60
Filed: 1951-12-13
Abstract: 715,905. Earth-boring core-drills. WALMSLEY F., PROCTER, R. H., and ENGLISH DRILLING EQUIPMENT CO., Ltd. Nov. 6, 1952 [Dec. 13, 1951], No. 29217/51. Class 85. A core drill comprises a barrel 1 threaded to a connector 6 screwed to a drill pipe. the connector having an internallythreaded axial  extension 11 into which is screwed a core barrel 13. The core barrel is formed in two parts which are secured together by a bolt 16, and the tapered end 15 of the barrel passes through an annular apertured plate 5 secured on the barrel 1 to abut correspondingly tapered surfaces 14 formed on the blades 2 of the barrel 1. In order to remove the drillings without interference with the core being cut, compressed air is passed from the drill pipe through passages 7 and 10 in the connector 6 and down the annular passage 17 between the barrels 1 and 13 to be discharged in the vicinity of the blades 2 through ports 18 in the annular plate 5.
Patent GB-1424627-A (GB)
Title: Corona discharge device
IPC: G03G15/02
Filed: 1973-06-20
Abstract: 1424627 Corona discharge HOECHST AG 20 June 1973 [22 June 1972] 29230/73 Heading G2H [Also in Division H1] A moving sheet is charged by a corona discharge device in the form of a flexible electrode strip in a plane parallel to, Figs. 1, 2, 4 and 5, or at right angles to, Figs. 8 and 9, that of the material and moving at right angles to the material, the corona discharge being from one or both edges of the strip. The strip passes through a cleaning zone (separate from the charging zone) in which cleaning may be effected by a doctor blade or a stationary or roll brush. It may move continuously in one direction in the form of an endless belt or reciprocate between supply rolls. It may be a continuous metal or metal-coated tape or comprise discrete rigid metal elements attached to a belt Fig. 7a, b and d (not shown) or directly to one another Fig. 7c (not shown). It may be flat or shaped. It may have a longitudinal guiding and reinforcing element. Its discharge edge may be straight, Figs. 1, 2,4 and 5, saw-like, Figs. 8 and 9, or in the form of a plurality of needle points. Its discharge may be controlled by one or more auxiliary electrodes which may be stationary or moving in the same or opposite direction (relative to the main electrode). Ozone may be sucked from the discharge zone. Figs. 1 and 2 show a main electrode 1 guided between a block 20 and strip 21, two rows of stationary control needle electrodes 11 and 12, and cleaning brushes 6. Fig. 4 shows a pair of control electrodes of the same type as the main electrode. Fig. 5 shows stationary control needle electrodes 11 and 12 and further stationary control electrodes 40-44, Fig. 8 shows main and control electrodes of the same saw-edged type, while Fig. 9 shows stationary needle control electrodes 11, 11' and 12.
Patent GB-402231-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C7/04
Filed: 1932-10-20
Abstract: 402,231. Colour photography. WECKFORT, A., Hochstein, Rheinpfalz, Germany. Oct. 20, 1932, No. 29394. Addition to 393,797. [Class 98 (ii).] The colour screen elements are supported upon or incorporated with a permeable top coating, e.g. of gelatine, superimposed upon the light-sensitive coating; or some elements may be supported upon the coating and some incorporated therewith. The local selective sensitization may be limited to certain screen elements, e.g. blue, the portions under the remaining elements, e.g. green and red, being panchromatically sensitized. The screen may be produced by applying fatty inks or matters which give off colour to the coating ; or by dyeing the coating between resists. To allow access of developing and solutions, impermeable screen elements may be removed by a solvent, e.g. benzene. Fig. 1 shows a positive material comprising a support 10 carrying a blue-sensitive coating 6 applied to a varnish coating 11 and covered by a transparent, permeable coating 15. Blue screen elements 12 are first applied by printing with an ink which repels sensitizing solutions and the spaces are then treated with a green, yellow or yellow-green sensitizer. Green, yellow or yellow-green elements 13 are next applied and the gaps 14<1> are sensitized for red and then coloured red. Fig. 2 shows a modification in which resist strips 16, e.g. of fatty ink, are applied and the gaps 17 are selectively sensitized and coloured, the strips being then removed and other strips applied and the process repeated. For negatives or transparencies, the varnish coating 11 is omitted. Green elements adapted to give a yellow colour may be obtained by printing the elements in a yellow colour mixed with a soluble blue dye. With soluble colours, the elements are strongly coloured for exposure, to secure effective filtering ; and are re-dyed with weaker colours for the picture. Lower sensitiveness under some elements may be corrected by a supplementary exposure through an appropriate filter.
Patent GB-901937-A (GB)
Title: Handle-bar controls with sheathed control cables, for example for autocycles
Inventor: JAULMES ERIC
IPC: B62M25/00
Filed: 1960-08-25
Abstract: 901,937. Handlebar control mechanisms; twist grips. ATELIERS DE LA MOTOBECANE. Aug. 25, 1960, No. 29408/60. Classes 136(1) and 136(3). A cycle handlebar assembly has a twisting sleeve hand-grip 4 with an arm .7 connected to a sheathed cable 12 and extending from -the sleeve 6 of the grip outside the handlebar and parallel to the axis of the grip to a length such that when viewed along the axis z of the steering pillar 2 a line y-y from the end of the arm 7 tangential to the front of the pillar 2 is perpendicular to the axes x-x of the sleeves. The left hand twist grip 4 operates a decompressor through a link 9 and cable 11, whilst a lever 5- operates the rear brake through a cable 20 passing inside the handlebar to emerge through a hole 19 at -a point where the line y-y is tangential to the curve of the handlebar. The cables 12 and 20 continue together inside a casing 21 which curves with a gentle radius R and after passing through a .perforated plate 15 on a bracket 13 on the handlebar is curved back with a similar radius towards the back wheel. A lug 25 on the handlebar forms an abutment for the sheath of the cable 12. For the front brake a cable 27 emerges from a corresponding casing 21 at a suitable point 29 in the radius thereon to pass through a central Whole in the plate 15 which abuts its sheath.
Patent GB-464803-A (GB)
Title: Fluid duct
IPC: F24F13/08
Filed: 1935-10-25
Abstract: 464,803. Air &c. ducts. THERMAL ENGINEERING CORPORATION. Oct. 25, 1935, No. 29568. Convention date, Oct. 25, 1934. [Class 99 (ii)] In an air &c. duct having an elbow as shown, the elbow is fitted with a number of spaced parallel air-deflecting blades B, having tapered edges 19, which serve to direct the air therethrough with a minimum loss of pressure and to provide a duct of constant cross-section throughout its length. Each blade B is formed of two curved sheet-metal members 13, 14 connected, preferably by spot welding 18, along their longitudinal edges, the member 14 having a central portion 15 of greater radius of curvature than the member 13 and also plane portions 16, 17 tangential to the portion 15. The blades are supported within the elbow at one or both ends by a plate P having a central raised portion 21 provided with a number of openings 22 conforming to the cross-section of the blades, the two plates being secured by rivets 23 along opposite walls 11, 12 of the duct so as to extend from the inner corner 9 of the elbow to the outer corner 10.
Patent GB-650248-A (GB)
Title: Improvements relating to combustion chambers for prime movers and the like purposes
Inventor: MASON SIDNEY ARTHUR
IPC: F23R3/08
Filed: 1948-11-15
Abstract: 650,248. Uniting by fusion. LUCAS, Ltd., J. Nov. 15, 1948, No. 29580. [Class 83 (iv)] [Also in Group XII] The joint between the adjacent tubular parts of a combustion chamber or analogous construction is formed by producing on one part a an external flange c of U or like section with air orifices d therein and welding it inside the adjacent end of a part b. The parts, which may be of conical or cylindrical form, are welded together preferably by the addition of fused iron. In use, air flowing from a surrounding air-jacket e passes through the orifices d and cools the welded joint against the high temperatures of the chamber. If desired, two rings of orifices d may be provided in the flange c as shown in Fig. 3. The Provisional Specification describes also the use of a flange c of rectangular or V-shaped section.
Patent GB-533471-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J19/00
Filed: 1939-11-08
Abstract: 533,471. Thermionic valves. MULLARD RADIO VALVE CO., Ltd. Nov. 8, 1939, No. 29670. Convention date, Nov. 11, 1938. [Class 39 (i) ] In a mixer or like valve having two control grids separated by a positively charged screengrid electrons returning through the screen-grid are deflected by a magnetic field, so as not to reach the first control grid. In the arrangement shown in Fig. 1 the axes of the cathode I and first control grid 2 are at an angle of 120 degrees with that of the first screen-grid 3, second control grid 4, second screen-grid 5 and the anode 6. The electrons issuing from the cathode are caused by a magnetic field to follow the curved path 8, returning electrodes following the path 9 and striking an auxiliary electrode 7. Fig. 2 shows the invention applied to a system of coaxial electrodes. Electrons issuing from the cathode 10 are formed by electrodes 18 into a beam which is caused by a magnetic field to take the curved path 19 through a control grid 11, screen-grid 12, an auxiliary grid 13, and second control and screen-grids 14, 15. Returning electrodes take the path 20 and strike solid portions 17 of the grid 13.
Patent GB-815524-A (GB)
Title: Production and refining of quatrimycins
Filed: 1955-10-18
Abstract: <FORM:0815524/IV (b)/1> <FORM:0815524/IV (b)/2> <FORM:0815524/IV (b)/3> <FORM:0815524/IV (b)/4> A quatrimycin having the same empirical formula as the corresponding tetracycline and also known as 4 epi-tetracycline is produced by preparing a concentrated solution of tetracycline, chlortetracycline, bromtetracycline or oxytetracycline, adjusting the pH to within 2.5 to 5.5, allowing the solution to stand until a substantial proportion of the tetracycline is isomerized to the corresponding quantrimycin and, if desired, reacting the quatrimycin with an acid or a base to produce a salt thereof.  The solutions are allowed to stand for at least one day and possibly 3 to 5 days.  The preferred pH is 3.5 to 4.5.  The solution is preferably buffered and maintained at a temperature higher than room temperature.  The solvent may be water but systems containing an oxygenated, polar solvent wherein tetracyclines are more soluble than in water are preferred.  Suitable systems are (a) aqueous acetone, (b) aqueous methanol, (c) water, butanol and methanol, (d) water, methanol and 2-ethoxyethanol, (e) water, dimethyl formamide and tetrahydrofuran, and (f) aqueous formamide; all containing phosphate buffer.  The quantrimycin is recovered by (a) fractional crystallization, (b) counter-current extraction.  Preferably the isomerized solution is filtered, concentrated and the pH adjusted to above 8.0 with an alkali such as sodium hydroxide, triethylamine or ammonia and the precipitated quatrimycin recovered.  This is then redissolved in an acidified solvent and reprecipitated by adjusting the pH above 8.0.  The quantrimycins form salts and complexes similar to those formed by the tetracyclines.  Specified salts of quatrimicins are the hydrochloride, sulphate, borate, phosphate, ascorbate, acetate citrate and salts with alkali metals, e.g. sodium, ammonium, alkaline earth metals, e.g. calcium and magnesium and with alkylamines.  Quatrimycins free bases are soluble in water, 1-4 C alcohols, wet polar solvents, acids and bases.  They are insoluble in dry butanol, acetone, esters, ethers and non-polar solvents.  They are distinguished from the corresponding tetracyclines by their infra-red and ultra-violet spectra.  The melting prints and specific rotations also differ.  Quatrimycins are stable and generally more water soluble than their tetracycline isomers.  They possess a similar antibacterial activity in vivo to the tetracyclines. Specification 815,525 is referred to.
Patent GB-192201-A (GB)
Title: Improvements in or relating to magazine pencils
IPC: B43K21/08
Filed: 1921-11-08
Abstract: 192,201. Salz, J. Nov. 8, 1921. No Patent granted (Sealing fee not paid). Pencil-holders; erasers.- A pencil-holder comprises a barrel formed of moulded rubber and a metal propelling-device held in the barrel by friction. The barrel 11 is longitudinally bored to accommodate the propelling-mechanism and to form a series of receptacles 19, Fig. 4, for spare leads. A nozzle member 12, Fig. 2, screws into the forward end of the barrel and serves as the connection between the barrel and the frusto-conical point-section 14, into the forward end of which is forced a tip 15 provided with a neck 16 knurled at 17, Fig. 11. The forward end of the tip is slit to provide a grip for the lead. The follower rod is formed from a pin 30 having a laterally-extending head 31 entering a slot 33, Fig. 4, in the barrel to prevent rotation, and formed witli a number of holes for engagement with a corresponding number of convolutions of spiral 24 enclosed in the barrel. The spiral is secured to the reduced end of a head-piece 20 rotatably held in the end of the barrel by means of a.split ring 26 which engages grooves in the head-piece and barrel. For further security, a band 29 attached to a pocketclip 28 is arranged over the joint between the two parts which are cut away to ensure the band lying flush with the surface of the barrel. An eraser 35, Fig. 10, is secured in the end of the headpiece by a split ring engaging grooves in the two parts, and a covering-cap 38 for the eraser, held in position by a groove 39 and indentation 40, is provided.
Patent GB-330200-A (GB)
Title: Improvements in and connected with furnaces
IPC: F27D1/12
Filed: 1929-10-01
Abstract: 330,200. Deschamps, J. J. Oct. 1, 1928, [Convention date]. Walls ; cooling.- The cooling tubes or other surfaces to be protected lining the walls or forming a screen above the ash-pit of a pulverulent fuel furnace are provided with ribs, flanges or the like adapted to retain ashes or any other refractory and pulverulent material to form a protecting non-adhering layer for increasing or directing radiation. Where the fuel such as oil or gas does not provide the necessary ash, sand or ashes from another source may be used. Figs. 1 and 4 show straight and bent tubes b provided with flanges a for retaining ash &c. c. Figs. 2 and 3 show tubes embodied in a furnace wall and provided with semicircular and rectangular flanges for retaining the ash &c. Where the tubes are horizontal or slightly inclined to the horizontal, longitudinal ribs a may be provided as shown in Fig. 5. Flanges, ribs, honeycomb cells &c. may also be fitted to a water jacket or other reservoir located in a furnace.
Patent GB-729169-A (GB)
Title: Improvements in or relating to centrifugal filters
Inventor: LOVE PHIL PRINCE
IPC: B04B5/00
Filed: 1952-11-25
Abstract: 729,169. Centrifugal separators. GLACIER METAL CO., Ltd. Nov. 6, 1953 [Nov. 25, 1952], No. 29785/52. Class 23. The rotor of a clarifier driven by the reaction of a jet has a partition forming a passage of spiral formation through which the liquid being clarified flows. As shown in Fig. 1 liquid is supplied to the rotor through apertures 9 in the rotor shaft, some of the unclarified liquid being discharged through a nozzle 13 to drive the rotor. The remainder of the liquid supplied to the rotor is clarified during inward flow through the spiral passage formed by the partition 2, and is finally discharged through a bore 11 in the rotor shaft. A fine gauze may be provided at the centre of the rotor. In the modification shown in Fig. 5 the partition 2 has flanges 19 which form the end faces of the rotor, and the rotor is fitted with bushes 20 for mounting on a spindle provided with axial inlets. The liquid flows from the inlets along the spiral passage and when clarified is discharged through a nozzle 13, the reaction of the discharging liquid driving the rotor. The Provisional Specification states that two spiral passages connected in series may be arranged axially in the rotor. Specification 710,510 is referred to.
Patent GB-262917-A (GB)
Title: Improvements in or relating to submarine mines
IPC: F42C14/04
Filed: 1925-11-27
Abstract: 262,917. Vickers, Ltd., and Pratt, H. B. Nov. 27, 1925. Mines, marine. -Relates to submarine mines of the kind in which the firing device is armed by the buoyancy of the mine by means of a member in the mine connected to the mooring cable and operated by the pull of this cable, a sealing diaphragm being provided for the connection. According to the invention, the pull of the mooring cable is applied to the outside end of a lever provided with a sealing diaphragm at its rocking point and connected at its inner end to the arming device. As shown, the mooring cable A', Fig. 1, is attached to an arm B<4> pivoted at one end to the outer end of the rocking lever B and jointed at the other end by a pin-and-slot connection b<5> to a spring plunger B<5>, which is normally locked by a lever E in conjunction with a soluble plug E<2>, Fig. 5. When the mine separates from the anchor during the mooring operation, a lanyard e<2> attached to the anchor pulls a cover-plate off, allowing water to get access to the soluble plug E<2>. When this has dissolved away, the pull of the mooring cable A<1> is free to depress the arm B' with the plunger B<5> and to rock the lever B about a ball- and-socket joint B<2> fitted with a sealing diaphragm B<3>. The inside end of the lever B is connected by a link b to the operating arm c of a switch C'in the firing circuit, which is closed by the aforesaid rocking movement of the lever B. During this movement, the lever B also bears on the toe d of a trigger D' and deflects this trigger against a spring plunger D<2>, thereby releasing the primer D, which then falls over the detonator C. If the mine breaks away from its mooring, the spring plunger D<2> returns the rocking lever to its original position, opening the switch again, thus disarming the mine. The pivotal connection between the arm B<4> and the rocking lever B is provided to permit the arm B<4> to be moved aside to allow the insertion or removal of the primer and detonator, which are held in place by a swinging catch B<4>x. Specifications 264,290 and 264,973 are referred to.
Patent GB-1398926-A (GB)
Title: Organic carboxylic acids
IPC: C07C57/02
Filed: 1972-06-27
Abstract: 1398926 Treating rosin acids REICHHOLD CHEMICALS Inc 27 June 1972 [23 July 1971] 30081/72 Heading C4D The ethylenic unsaturation of rosin acids is decreased without decarboxylating or otherwise degrading the rosin acids by dispersing into a mixture of rosin acids an iodine disproportionation catalyst and an activator comprising a metal salt of an organic carboxylic acid which is soluble in the mixture of rosin acids, and which is non-poisonous to the iodine catalyst, the metal being iron, copper, tin, zinc, aluminium, lead or magnanese, and heating the mixture to a temperature of 175C. to 300 C. for from 3 to 180 minutes. In the examples tall oil resin, Telogia Wood rosin, Portuguese gum and Mexican gum are heated with iodine in the presence of iron, aluminium, zinc, tin, copper and manganese resinates, iron fumarate, lead tallate, tin oleate, iron stearate and iron oleate.
Patent GB-975035-A (GB)
Title: Improvements relating to snow plough blades
Inventor: HOWIE JAMES BRYSON
IPC: E01H5/06
Filed: 1962-08-04
Abstract: 975,035. Snow ploughs. J. B. HOWIE Ltd. July 30, 1963 [Aug. 4, 1962], No. 30098/62. Heading E1G. A snow plough blade having an upper blade part 1 and a lower blade part 7 mounted for shock absorbing rocking and rearward movement has two alternative faces 12, 13 on the lower blade 7 to establish two alternative angles of the lower blade relative to the upper blade. The lower blade comprises a reversible scraper blade 7 bolted to a mounting plate 9 having ribs 14, 15 on opposite sides, such that reversal of the plate 9 changes the angle of the blade 7 with respect to the blade 1.
Patent GB-400773-A (GB)
Title: Improvements relating to stair rods
IPC: A47G27/06
Filed: 1932-10-27
Abstract: 400,773. Stair rods. FREED, V., 58, Cardiff Street, Aberdare, Glamorgan. Oct. 27, 1932, No. 30117. [Class 52 (v).] Stair rods a of triangular or similar cross-section have transverse grooves d provided in the front face.of a width and depth to take the pivoted member e of the clip f so that when the pivoted member is in the closed position it is flush with the face of the rod. A groove d is provided near each end of the rod. The hinged member e is locked in the closed position by a catch g.
Patent GB-208142-A (GB)
Title: Improvements in water repellant textile materials and methods of producing same
IPC: D06M13/188
Filed: 1923-11-29
Abstract: Fabrics, yarns, &c. are water-proofed by impregnation with a compound of a higher organic acid (e.g. the fatty, oleic, linoleic, linolenic and chaulmoogric series) and a rare-earth metal such as cerium, lanthanum and didymium, or thorium, zinconium or uranium, especially soaps only slightly soluble in hydrocarbons.  The impregnation may be effected by (1) simple impregnation by a solution of the compound; (2) interaction of solutions of an alkaline fatty acid salt and a rare-earth metal salt; (3) depositing an insoluble inorganic rare-earth metal compound and then impregnating with a fatty acid compound of a rare-earth metal, or with a solution of an inorganic salt of a rare-earth metal.  The comparative inertness to alkalis of the above compounds renders them suitable for use as mordants or to form lakes.