964 THE COLLIERY GUARDIAN. May 19, 1916. the fuel bed, the end of the pipe C may be serrated, as shown, although this is not essential. By this arrangement there is less liability of causing choking and clogging of the outlet pipe, the arrangement is neater and more compact, and the scrapers can be worked in straight lines along the pipes without interfering with the working of the plant. (Two claims.) 24299 (1914). Improved Process for the Treatment of Lignite, Brown Coal, Peat, Wood, and the like Raw Fuel Materials. Bogwood, Ges. m.b.H., of Munich, Germany, assignees of Gamillo Melhardt, of Starnberg, Germany.— Consists in a process for treating lignite, brown coal, peat, wood and like materials as regards contained water and oxygen for the purpose of permanent removal of the water contained in them, and at the same time increasing their calorific value characterised herein that the raw material is first dried, and is then heated in a closed chamber which allows of the escape of the gases, that is to say, without increase of pressure at a temperature of 180 degs. to 250 degs. Cent., until there is no further escape of water vapour, carbonic acid, or carbon monoxide and nitrogenous gases, the esters and imides contained in the raw material being thereby broken up, and whereby the other constituents having a high calorific value remain unaltered. In most cases it is only after several hours that an appreciable change in the compounds takes place at the temperatures above stated. At much lower temperatures no appreciable decom- position of the esters, etc., con be perceived, even after a long period of treatment. Any ordinary chamber furnace may be used for carrying the improved process into effect. Lignites, brown coal, and other materials treated as above described become ,of course, specifically lighter ,and float partly in water, but are moistened only with very great difficulty by water, so that they absorb no water or only very little. As an example, the raw materials, preferably broken to the size of nuts, are dried by any suitable means as much as possible, and are then heated to a temperature of 180 degs. to 250 degs. Cent, in closed chambers or vessels, from which the gases can escape, so long as water vapour and non-condensible gases such as carbonic acid, etc., pass off. The escape of the gases which are split off and the water expelled will amount to 15 to 20 per cent. The material after treatment is cooled by any suitable means, and is at once ready for use, unless it is found necessary to remove any portions rich in ash. Since the heat-giving con- stituents are retained, the calorific value of the treated materials will amount to 6,000 to 6,500 calories, according to the kind of raw materials employed. With regard to the preliminary drying, taking as ^an example the case of raw coal fresh from the pit, which has been broken to the size of nuts, and has been freed from dust and small coal, the preliminary drying is effected for instance by exposing the coal to a moderate current of air at a temperature of from 25 degs. to 30 degs. Cent., that is increased to 60 degs. to 70 degs. Cent, as the drying operation progresses. This preliminary drying takes from four to eight days, according to the nature of the coal. The fuel thus produced floats on water, whereas the admixed ashy materials which have remanned unaffected by the treatment .sink in water. In the case of naturally denser materials, the separation is effected in neutral salt solutions of 1 to 2 Be. (Three claims.) 100214. Improvements in Furnace Bridges. W. H. Gould, of The Myrtles, Dinas Powis, Glamorgan.—Delates to furnace bridges of the type in which, to improve the combustion of the fuel, and to .facilitate access to the com- bustion chamber for purposes of inspection or otherwise, the ordinary brick fire bridge is replaced by a series of metal fire bars, which, when placed together, form a wall, set at an angle to the main fire bars at their extreme ends, as described and illustrated in a specification numbered 2654/13. The, object is to provide a means of extending the height of such furnace bridges in such a manner as to obviate the necessity of providing a new set of furnace bridge fire bars. Caps of cast iron, steel, or other suitable metalr in the form of an inverted U or V in cross section, and of suitable lengths, are fitted upon the crest of the furnace bridge fire bars. These caps are made in two parts in the form of plates, with hinges to connect them formed on one edge. The hinges being brought together, a bolt is passed through, and each plate now forms one side of an inverted U or V, with the'hinge at the top. The hinged caps can be opened to any angle, and are thus capable of fitting on different size bridge bars. In order to keep the caps in posi- tion, at each end of the furnace bridge is placed a short cap, which is made to fit on the top of the bridge bars like a saddle and also to conform to the shape of the crown of the furnace. In the ends of these end fitting pieces, which face each other, slots are formed to receive the head and nut of the bolt, which passes through the hinges of the caps, the slots preventing the bolt and nut from turning, and the caps from being dis- placed. As a further security, a hole may be drilled through each plate, and into the bridge fire bars, and a stud bolt screwed in. The caps may also be made in one piece, and secured by the ordinary method of a stud bolt, passed through the cap, and into a screwed hole in the bridge fire bar. In the drawings, the inverted U or V shaped caps are shown at A, figs. 1 and 2. The hole for the hinge bolt is shown at B, figs. 1 and 2. The bridge bars are shown at C; D shows the slot in which the head or nut of the hinge bolt is fittedE indicates the end fitting pieces. Eig. 1 is a view of the front of a furnace bridge with one-half of the fire bars and caps in position; and fig. 2 is a cross section. (One claim.) 100217. Improvements in Apparatus for Weighing Heavy Material during Transit. H. D. Cheshire, of The Croft, Sea-road, Wallasey, Cheshire. — The object is an arrangement for conveniently and expeditiously weighing heavy merchandise of all kinds while being moved from one 'place to another. In the drawing A is a beam from which the hook B of the weigh beam C is attached. D is a yoke carried by one end of the beam on the usual knife edge, and having two rails or projections E, formed or provided at their ends with legs E1 normally resting on the ground F. G is a truck having a loose floor or frame H supported thereon, but capable of being lifted off, which when the legs E1 are on the ground is at somewhat higher level than the top of the rails E. I, merchandise carried by the aforesaid truck. J, the weight bottom carried on the usual knife edge at the other end of the beam C. K is a chain suspended from the beam A, and supporting the catch weight lever L. As-it is very desirable that the length of this chain can be exactly regu- lated, an expansion link M, of any convenient description, is placed in its course, preferably fastened to the hook N,. so that it can be hooked to the link most suitable. P is. a catch on a stout beam or post so as to hold the lever L in and out of action. The merchandise to be weighed is piled up on the frame H of known weight, and is carried on the truck C, until the frame and weight is well over the rails E. The lever L is now liberated from the catch P, and the rails E come into contact with the frame, and weights are piled on the scale J until the plate H rises from the truck. The truck can be now M drawn away, and can be used with another floor board H for carrying fresh merchandise to this weighing device. In the meantime the correct weight is ascertained, and another empty truck placed ready to receive the load. The lever L is now pressed down again into the position - shown in the drawing, and caught by the catch P holding the weights up. A second truck load of merchandise is brought over the parts E and weighed in the same manner, the weights now being adjusted to the slight difference between the weights of the two different sets of merchandise. (Three claims.) MEW PATENTS CONNECTED WITH THE COAL AND IRON TRADES. Applications for Patents. [Note.—Applications arranged alphabetically under the names of the applicants (communicators given in italics). A new number will be given on acceptance, which will replace the application number.] Abbott, W. G. (6688). Devices for utilising fluids under pressure for lubricating relatively movable elements. Ayres, W. H., and Brearley, H. (6792). Forging crank shafts. Ballantine, W. H. C. B. (6829). Manufacture of tungsten. Barnardiston, R. (6834). Iron or steel plates or shapes, and structures composed thereof. Bright, P. (6755). Valve mechanism of internal combustion engines. British Thomson-Houston Company (General Electric, Com- pany) (6639). Electric motor control systems. Brown, J. W. (6667). Form of transmission for motor implements, tractors, or vehicles. Cook, S. S. (6879). Steam superheaters. . Cross, W. (International Couplers Company) (6830). Flexible joints. ‘ ‘ Day and Millward (6815). Weighing 1 machines. Dean, J. (6568). Piston packing rings, etc. Donaldson, J. (6853). Apparatus for handling ore, etc., in bulk. Dormann, O. (6591). Device for gas and air mixing and for more complete atomisation-or gasification'of liquid fuels with air for combustion engines.' ’ Fraser and Chalmers (6877). Idler pulleys for conveyor belts. Galston, A. (6682). Railway or tramway switch operating mechanism. Ganthony, R. (6854). Separate charge space internal com- bustion engines. Gill, J. H. W. (6655). Two-stroke internal combustion engines. Gill, J. J. (6565). Rotary apparatus for driving internal combustion engines. Godeau, L. F. (6755). Valve mechanism of internal com- bustion engines. Gresley, H. N. (6832). Feed water heating and purifying apparatus for locomotive, etc., boilers. Groves, A. and G. H. (6732). Pedestals for pit tubs. Head, Wrightson and Company, Rinquist, J. M., and Wrightson, W. I. (6753). Telescopic mine props, etc. Heaps, E. H., and Lyon, W. N. I. (6635). Treatment of peat, peat moss, etc. Henderson, G. C. C. (6648). Means for supplying combus- tible charges to internal combustion engines. Henderson, J. G. (6589). Starting and stopping devices for electric motors. . Hjort, V. F., and Lassen, J. J. (6798). Apparatus for softening and purifying water. lonides, A. C. (6757). Furnaces. Kershaw, P. B. W., and Smith, R. (6697). Expansion motors. Knowles, A. J. (6825). Manufacture of explosives. Laraque, H. (6613). Treatment of feed water for preventing corrosion and incrustation in steam generators, etc. Lawrence, P. H. (6781). Means for ejecting burning liquid and producing and discharging gases. Luqay, C. de Rochefort- (6826). Internal combustion engines. McNamara, A. (6692). Rotary drilling or boring apparatus. Manchester Furnaces Limited, and Russell, W. A. (6758). Oil burners. Manchester Furnaces Limited (6759). Crucible furnaces. Mitchell, F. G. (6877). Idler pulleys for conveyor belts. Mitchell, J. E., and Morfey, H. (6676). Production of crude benzol, tar, etc. Morris, H. F., and Porter, J. K. (6572). Hydraulic method of drilling oil, water, and other wells. Morris, J. H. (6671). Self-locking pin for tram shackles. Morrison, W. (6869). Power transmission systems. Naletoff, M. (6695). Conveyors. Parsons, Sir C. A. (6879). Steam superheaters. Pearson, R. H. (6835). Aerial ropeways. Pickering, W. H. (6566). Internal combustion rotary engines. Smith, J. (6640). Machinery for charging and withdrawing ingots into and from furnaces and/or for stripping ingots. Tiegs, W. J. (6576). Shovels. Trist, A., R. (6776). Means for packing rotary shafts of turbines, etc. Tyler, W. S. (6864). Tubular radiators and condensers. Van der Valk’s Certitude Patentmoer (6707 and 6779). Lock nuts. Veasey, J. H. (6650). Arms and clamps for rigging rock drills. Walker, A. E. and J. R. (6681). Oil engines. Wallace, E. K. and J. L. (6845). Lubricating apparatus. Westinghouse Machine Company (6874). Motor power plants. Complete Specifications Accepted. (To be published on June 1.) 1914. g 17872. Construction of high frequency alternators. Soc. Marius Latour et Cie. 1915. 1846. Briquetting machines. Korte. 2019. Engine or machine packing. Beldam. 6639. Apparatus and appliances for forging metal articles. Flardy Patent Pick Company, Foster, and Hall. 6674. Systems for the protection of electric cables in the event of external damage. Beavei’ and Claremont. 6718. , Well drilling tools for oil, gas, and water wells. Cosby. 6729. Two-stroke cycle internal combustion engines. Emery. 6810. Boring bars. Wilkinson and Smith. 6903. Fuse igniters. Barron. 6944. Mode of and means or apparatus for extracting water from coal. Burnett. 7007. Apparatus for coaling vessels. De Mayo. 7096. Feed water heating and water circulating apparatus , for locomotive and other boilers. Willans and Luard. 7119. Rolling of metals,. Filkin. 7121. Shaft furnaces or kilns for burning or calcining lime- stone, dolomite, and the like. Magis. 7169. Apparatus for feeding pulverised or finely-divided fuel.. Law. (Quigley Furnace and Foundry Company.) 7217. Automatic coupling for railway vehicles and the like. Cloud. 7335. Feed water heaters of the jet or contact type. Baumann. 7547. Apparatus for supporting stretchers on vehicles used in mines. Payne. 9153. Orc concentrators and mineral separators. Partners Limited, and Ogle. 9831. Method of and apparatus for foundry moulding. Robinson. .. 9860. Gudgeon pin for internal combustion engines. Saur er. 10293. Hydraulic mains as used in connection with gas retorts, coke ovens, and other carbonising plant. Leech and Payne. 10304. Cylinders of internal combustion engines. Burt. 10762. Dynamo electric machines. British Thomson-Houston Company, and Pollock. 11242. Internal combustion engines. Lockwood. 11627. Fluid pressure starting and stopping devices for elec-' trie motors operating pumps. Westinghouse Brake Company. 11909. Conveyors. Donaldson. 11952. Four-stroke cycle internal combustion engines. Watkins. 13386. Internal combustion engine. Jahnke. 17472. Packing means for the shafts of centrifugal pumps. Naamlooze Vennootschap “ Werf Conrad.” 1916. [Note.—The numbers following the applications are those which the specifications will finally bear.] 488. Magnetic separators. Krupp Akt.-Ges., F. 100063 934. Clamping devices for securing wire ropes together, and for analogous purposes. Bullivant, F. A., and Selby, G. M. 100380 4338. Magnetic separators. Krupp Akt.-Ges., F. 100379 Complete Specifications Open to Public Inspection Before Acceptance. 1916. [Note.—The numbers following the applications are those which the specification will finally bear.] 4621. Fans. Demoville, J. L. 100391 5391. Continuous current generators. All manna Svenska Elektriska Aktiebolaget. 100394 5947. Wire drawing machines. Marvin, H. A. 100398 6036. Electric welding apparatus. Woltmann, E. 100401 6125. Axial flow turbines. Reede, A. A. W. van. 100404 6292. Systems of control. British Westinghouse Electric and Manufacturing Company. 100407 Application to Avoid or Suspend Patent. No. and year of patent. Name of grantee. Short title. Name & address of applicant. Date of hearing. 24924/11 J. Pohlig Akt.- Ges. Crane-like ap- paratus for use in con- nection with blast f u r- naces. Head, W rightson and Co. Ltd., Teesdale Iron Works, Thorn- aby-on-Tees. May 24. Any person interested who desires to be heard in opposition to the above-mentioned application must give notice in writing addressed to the Comptroller-General of the Patent Office, 25, Southampton- buildings, London, W.C., before the date of the hearing. GOVERNMENT PUBLICATIONS. ^W’Any of the following publications may be obtained on application at this office at the price named post free. Statutory Rules and Orders, 1916 : No. 239, EXPLO- SIVES IN COAL MINES ORDER, lid.; No. 263, Trading with the Enemy, l|d. Summer Time Bill, Id. Military Service Bill (as amended in Committee), IJd. PUBLICATIONS RECEIVED. The Journal of State Medicine” (Vol. 24, No. 5), May, price 2s. net; “Bulletin of the American Institute of Mining Engineers,” May; “The Mining Magazine” (Vol. 14, No. 5), May, price Is. The late Mr. E. J. Bannister, Great Grimsby, coal exporter, left estate valued at £38,542.