322 THE COLLIERY GUARDIAN. February 6, 1914. a loose sleeve on the cam shaft; attached to this sleeve is an arm which passes through an angle proportionate to the distance of movement of the sliding plate, the said plate being actuated in the forward direction by the weight on the chain, and in the return direction by the crank and connecting rod. The weighted flexible connection causes the sliding plate to move forward until it contacts with the steelyard at such time as the plate is free owing to the rotation of the crank and the slot in the connecting rod. Adjacent to the toothed sleeve and upon the same shaft is positioned a second loose toothed sleeve, also controlled by a weighted flexible connection and also provided with an arm; the latter sleeve is connected in any suitable manner with a weight-recording integrator of known type, whereby movement of the weighing parts is converted into pro- portionate weight factors. The arm on the second sleeve is controlled in the one direction by a weight upon the flexible connection, and this arm normally rests against a stop which accords with the “ no load ” position of the conveyor and weighing parts. When the arm upon the first mentioned sleeve moves forward angularly in proportion to the move- ment of the sliding plate which is governed by the rise of the steelyard, it will, if there is any load upon the con- veyor, contact with the arm upon the second sleeve and move it angularly. This angular movement of the second arm partially rotates the sleeve to which it is attached, the rotation corresponding to the rise of the steelyard, and as the second sleeve is connected to the weight integrator the measure of the rise of the steelyard is converted into weight units or factors. The measure of the rise of the steelyard takes place intermittently at such time as the steelyard is gripped between the plates. Fig. 1 is a part sectional elevation of the recording mechanism; fig. 2 is an end elevation, the integrating counter being indicated by dotted lines. (Four claims.) 18501 (1913). Improved Process and Apparatus for Supplying Air and Oxygen to Independent Deep Diving Apparatus. Dragerwerk Heinr., und Bernh. Drager, of Lubeck, Germany. —According to this invention, instead of using compressed air alone or oxygen alone or a mixture of both, for inde- pendent deep diving apparatus, the compressed air and the oxygen are supplied separately from each other to the diving apparatus, and they are mixed together in the proper proportion only when they have arrived in the actual diving apparatus. Apart from the saving in the work of compression, since these gases can be supplied to great depth only in a compressed state, this invention has the advantage that the containers for the gases can be made smaller, and therefore the apparatus is not so bulky. Further, the weight of the entire apparatus is diminished. One form of this invention is illustrated by way of example in the accompanying drawings. As shown p is a compressed air container, s is an oxygen container, k is a potash cartridge, i is an injector for producing the circulation of the air, r1 and r2 are pressure-reducing valves. The course of the air to be breathed is indicated by arrows. (Four claims.) 23361 (1913). Improvements in Devices for Connecting Flexible Cables used for Respiratory Apparatus and similar purposes Diagerwerk, Heinr. and Bernh. Drager, of 53, Moislingerallee, Lubeck, Germany.—The cables used in respiratory apparatus, and particularly in diving apparatus, where they are connected with the helmet or other fixed part of the apparatus, and serve for conducting the electric current to a lamp or telephone or the like, are frequently subjected to heavy strains, either tensional or bending strains, at the point of attachment, so that these cables are apt to be easily injured, and the tightness of the joint or Tig.1. the contact with the helmet or the like can be destroyed. According to this invention this disadvantage is avoided by transmitting the tensional strains on the cable in front of its place of attachment (which may, for example, be the stuffing-box) to rigid joints, and by determining the radius of curvature of the bend of the cable just in front of its entrance to the helmet or the like by means of a universal joint. In the drawing a diving apparatus is shown in fig. 1 to the helmet, of which, by way of example, a cable is attached ; fig. 2 is a sectional view of the device also by way of example. (Two claims.) It is officially announced that Messrs. Marple and Gillott, iron, steel, and machinery merchants, of Sheffield, have purchased from Mr. Frank Brown, the liquidator, the Richmond Iron and Steel Company's Richmond Ironworks, Stockton-on-Tees. The works, which have a productive capacity of 400 tons per week, are to be restarted at an early date. NEW PATENTS CONNECTED WITH THE COAL AND IRON TRADES. Applications for Patents. 1980. Disintegrating machines. A. D. Furse. 2033. Furnace tilting-gear to be used in connection with melting-furnaces for strip casting and other purposes. Murphy, Stedman and Co. Limited and H. A. Stedman. 2034. Rotary table for strip moulds and other purposes. Murphy, Stedman and Co. Limited and H. A. Stedman. 2044. Fluid-pressure turbines. G. Westinghouse. 2045. Endless belts. A. S. Brown. 2063. Miners' electric lamps or the like, and accumulators for use therewith or for like purposes. F. J. Turquand. 2072. Heat accumulators. L. Maurice. 2135. Shaft or axle bearings and the like. F. W. Hough. 2155. Crucible furnaces. W. Miller. 2172. Furnace refuse collecting and distributing door. J. E. Ball. 2178. Coking coal and the treatment of shale, lignite and other carbonaceous material. J. Moeller. 2192. Method of and apparatus for treating iron and steel ingots with a view to the removal of “pipes.” F. Schruff. 2227. Control of variable belt pulleys. L. Thorp. 2232. Manufacture of briquettes and apparatus therefor. W. H. Bloore. 2247. Keps for pit-cages and the like. E. A. Davies. 2249. Electro-magnetic unlocking apparatus for miners' lamps. O. Oldham. 2266. Brake mechanism for railway and like vehicles. H. E. Gresham. 2283. Rotary pumps. E. F. Wallis. 2305. Rock drills. A. A. Thornton. (Cleveland Rock Drill Company, U.S.) 2319. Pumps. H. Davey. 2343. Pumps. W. R. Pilkington. 2384. Process for the manufacture of firebrick or like refractory material. F. L. Schauermann. 2385. Process for the manufacture of ferrous alloys. Rombacher Huttenwerke and J. I. Bronn. 2393. Generation of steam from the heat contained in slags. C. Vautin. 2397. Gas-producer A. Reynolds. 2428. Method of and apparatus for obtaining oils and other products from carbonaceous matter or other materials containing hydrocarbons. W. G. Wilson. 2456. Hygrometers for use in mines and such-like places. E. A. Hailwood and A. U. Davis. 2466. Means for the prevention of accidents in mines and similar places through runaway trams. J. W. Utley and W. J. Deighton. 2500. Presses for agglomerating coal and the like. H. Steven. 2512. Process for the face hardening of steel. C. Bingham. 2515. Production of fuel oil. E. Hoppermann. 2609. Scrubbers for gases. A. Hollis. , 2614. Pumps and the like. M. J. Poyet. 2620. Apparatus for distributing fuel. G. S. Higginson. Complete Specifications Accepted. To be published on February 19. 1912. 26993. Apparatus for simultaneously weighing the cargoes and measuring the draught of ships. Finck. 27428. Process for extracting liquid hydrocarbons and halogen derivatives thereof from peat. Tischenko and Plauson. 29886. Apparatus for stamping or pulverising minerals and the like. Harris. 1913. 1851. Process and apparatus for obtaining a useful by-product from gas manufacture, and for the recovery or utilisation of ammonia from gas manu- facture. Lymn. 2081. Percussive rock-drilling tools and machines. Kirsch. 2300. Apparatus and system for treating ores or other substances, pulps, solutions, gases, and the like. Durand and Stapley. 2372. Electric safety lamps for mines and the like. Attwater. 2469. Storage battery charging. Simon, Roberts, and Chadwick. 2672. Process for manufacturing a new product from mineral oil. New Oil Refining Process Limited and Rossini. 3278. Apparatus for extinguishing fires. Morris. 3284. Process for the distillation of carbonaceous material and apparatus therefor. Hills and Thom. 4018. Process for pulverising blastfurnace slag and the like. Bagley and Feilmann. 7166. Buffering devices for rolling stock. Metropolitan Carriage Wagon and Finance Company and Grigg. 8256. Windlasses, capstans, winches, cable lifters, and other hoisting machinery. Clarke, Chapman and Co., and Woodeson. 9358. Mill-bar heating furnaces. Diether. 14399. Fluid-pressure pump governors. Crittenden. 16130. Apparatus for measuring the pressure of gases. Piller. 17046. Welding - power for welding iron and steel. Eisengraber. 17955. Continuous ingot-heating furnaces. Siemens. 22290. Brakes for tipping wagons. Moritz. 22476. Mills for grinding, crushing, and pulverising ores and the like. King and Head, Wrightson and Co. 25366 Conveyors for use in mines and other places. Bowman and Jackson. Complete Specifications open to Public Inspection before Acceptance. 1913. 30093. Rotary mechanical shovel, intended more especially for the handling of coal and ores in pieces. Schwander. 1914. 35. Rock-drills and like cutting machines. Berner. 228. Process for agglomerating coal and other pulverulent or plastic materials. Steven. 902. Fluxing composition for use in brazing cast iron, rod iron, or cast steel with cast iron. Abt. 1109. Grinding machines, King. 1353. Mouthpiece for breathing apparatus. Maschinen- fabrik “ Westfalia” Akt.-Ges. 1493. Method or means for suppressing explosions in mines by the use of non-combustible dust. Cremer. 1580. Furnace doors. Bareuter. GOVERNMENT PUBLICATIONS. *** Any of the following publications may be obtained on application to this office at the price named post free. Boiler Explosion Reports : (No. 2271) Hot Closet at Belvedere, Kent; (No. 2272) Steam Jacket Pan at Sheffield ; (No. 2273) Blow-off Valve at Stargate Pit, Blaydon-on- Trent—2|d. each. Pauperism Statement for December, 2d. Dominions Royal Commission : Second Report, Is. 2|d. ; Papers Laid before the Commission, 2s. 2d. Consular Reports, 1912 : France, Dunkirk, 2|d. ; Siam, Bangkok, 4d. ; French Congo, 1911-12, 3|d. ; Norway, 2|d. Report re Safeguards for the Prevention of Accidents in Iron Foundries, 3d. Industrial and Provident Societies' Annual Return Form, No. 18, 2|d. Final Report to Enquire into Primary Education, 7d. Statutory Rules and Orders, 1914: Workmen's Compensa- tion Rules, l|d.; Trade Boards Regulations, January 10, l|d. PUBLICATIONS RECEIVED. Sells’ Directory of Telegraphic Addresses, 1914. London : Business Dictionaries Limited. Price 25s. Incandescent Electric Lamps and their Application. By D. H. Ogley. London : Longmans, Green and Co. Price 2s. 6d. “ Charter, Bye-Laws and List of Members of the Iron and Steel Institute,” price la.; “Journal of the Royal Statistical Society” (Vol. 77, Part 2), January, price 2s. 6d.; “ Minister© Degli Affare Estere, ‘Il Carbone Inglese in Confront© al Carbone degli altne Stati Sua esportazione durante il biennio 1910-11"'; “Bulletin of the Imperial Institute” (Vol. 11, No. 4), October- December, price 2s. 6d.; “Bulletin Mensuel de la Societe Industrielle du Nord de la France” (No. 199),December ; “ Zeitschrift fur das Berg Hutten-U. Salinen Wesen ” (Band 61), 4 Heft; “Bulletin de la Association Inge- nieur de 1'Ecole des Mines de Mons.” CATALOGUES AND PRICE LISTS RECEIVED. The A. E. G. Journal for January contains articles on telephone cables, an electric locomotive on the Rhaetian Railway, and some modern electricity meters. Messrs. Bleichert’s Aerial Transporters Limited (36, New Broad-street, E.C.) send us an illustrated description of the wire ropeway installation built for the Powell Duffryn Steam Coal Company at Aberaman. In the monthly date card for January, Messrs. Mavor and Coulson Limited (47, King- street, Mile-end, Glasgow) give a diagram showing the relative sales of Pick-quick coal- cutters. In 1913, 74 per cent, of the sales were repeat orders. The British Cleaning-Cloth Company (Eastcheap- buildings, Eastcheap, E.C) supply cloths manufactured from raw silk waste, one of the principal advantages of which is that they can be cleaned, the company undertaking this for customers on very reasonable terms. The “ Asepto ” bandage, a sample of which has been sent to us by the Asepto Bandage Company (46, Cannon-street, E.C.) is a distinctly practical and simple article. The bandages are made in four sizes and are separately contained in wrappers giving full directions for use. John J. Loke (La Haye, Holland) sends us particulars of his titaniferous iron sand for electric smelting purposes. This is derived from the volcanic residues in Java, and has the following composition:—78*4 per cent, of oxides of iron (57 per cent, of metallic iron) and 16 per cent, of titanic acide Erith’s Engineering Company Limited (70, Gracechurch- street, E.C.) have issued a pamphlet dealing with their grateless underfeed stokers, with combined automatic control of fuel and air. Over 10,000 of these stokers are now in use. Descriptions are also given of Erith’s recording heater-softener and feed-water heater and purifier. Messrs. Harpers Limited (Aberdeen) send us a copy of a useful little pocket catalogue which they have just issued, (No. XIV.) containing information of a varied character in regard to the transmission of power. It deals seriatim with flywheels, belt and rope pulleys, gear wheels, shafting, friction clutches, pedestals, and fixings. Messrs. Harpers will be glad to send a copy, post free, to anyone interested. Messrs. Schaffer and Budenberg Limited (Whitworth- street, Manchester) have forwarded copies of new sectional catalogues. The first deals with gunmetal taps, iron and brass siphons, &c; the second with self-recording pressure gauges; and the third with reciprocating and rotary counters. The recorders are made in three types, viz., with circular revolving chart, oblong chart, and continuous chart respectively. Amongst the counters described may be mentioned a high-speed universal counter, available for speeds up to 800 revolutions per minute, and for both rotary and reciprocating motion.