94 THE COLLIERY GUARDIAN. January 10, 1913. per 100 kilogs. of molten metal and a primary loss of 3,800 calories for the fusion of the flux. On the contrary, with coke mixed with fluxes according to this invention the carbon, by the instantaneous fusion of the ash, is liberated and combines with the air as soon as combustion commences, and no loss of heat occurs. CO2 is formed during nearly the whole time since the uncovering of the pieces of hard coke facilitates the contact of oxygen with carbon. (Two claims.) 28420 (1911). Miners9 Safety Lamp Electric Light Fitting. D. Morrison, 41, John Dalton-street, Manchester.—This invention is an appliance made in different sizes to insert within all existing forms or future similarly made forms of miners’ oil or spirit pit and safety lamps, whereby an electric light is given in lieu of the present lamp flame, thus using the existing frames and fittings, and saving their cost. The appliance consists of an electric battery storage cell or accumulator with fittings and lamp, which is inserted into an ordinary miner’s safety lamp, the battery storage cell or accumulator fitting within the space occupied by the lamp gauzes, and the lamp bulb occupying the position usually occupied by the flame of the oil or spirit burner. The current from the aforesaid battery is brought from the top to the underside and down the sides of the same into poles or terminals bearing directly on to points on the fitting or switchboard direct. The connection is — A- E 1 made to a lamp such as the “ Osram ” by the fitting afore- said, the light being produced when the lamp and fittings are brought into contact. The appliance is kept in position by a ring or rings, the upright part of which will be made of suitable length for the various styles of lamps to be fitted. Fig. 1 represents a miner’s pit lamp, with the appliance in position; fig. 2 shows a view of the top of the battery, and the position of the poles and vertical inner tubes carrying the same down to the bottom of the battery; fig. 3 shows the underside of the battery and arrangement of the fitting on the terminals ; fig. 4 shows an end view of the fitting in position on a pole of the battery. (Two claims.) HEW PATENTS CONNECTED WITH THE COAL AHD IRON TRADES. Applications for Patents. 1912. 29525. Adjustable pulleys. A. F. Sanders. 29537. Method for the separation, detection, and estimation of elements in alloys and other chemical substances. A. L. Fletcher. 29538. Instrument for the separation, detection, and esti- mation of elements in alloys and other chemical substances. A. L Fletcher. 29540. Drills having renewable bits. J. West. 29602. Steam generator. J. E. Clarkson. 29617. Apparatus for washing, separating, and concentrating ores, minerals, and the like. G. Michel. 29639. Manufacture of tungsten. C. Gladitz. 29648. Manufacture of cattle foods from sphagnum or peat moss. J. J. Eastick and J. J. A. De Whalley. 29656. Winches and like hoisting appliances. C. I. Shuttle- worth and W. E. Shuttleworth. 29657. Metal fire-bridges for the furnaces of steam generators. J. Jones. 29658. Timing device to be used in connection with gravity conveyors or carriers and elevators used in con- junction with same. R. Forge and British Matthews Limited. 29661. Self-adjusting reversing valve for engines of the oscillating-cylinder type using compressed air. H. A. Akroyd. 29673. Furnace bridges. R. F. Sturrock. 29683. Steam superheating. S. Z. de Ferranti. 29696. Explosive and method of manufacturing the same. F. Raschig. 29714. Distillation of carbonaceous substances. H. Clarke and J. T. Carmichael. 29801. Process of and means for galvanising or coating metallic sheets. H. Folland, T. A. Morris, and W. Griffiths. 29886. Apparatus for stamping or pulverising minerals and the like. G. H. Harris. 29888. Gear for controlling the winding arrangements of mine cages, hoists and the like. Sandycroft Limited and J. B. Gott. 29914. Means for protecting the interior surfaces of boilers, water tubes, and pipes and the like from corrosion and from the formation of a deposit of solid matter derived from the water within them. C. G. Fernie. 29920. Coupling and releasing arrangement for endless wire-rope haulage. T. Ewart and A. P. Hall. 29934. Suction gas plant. R. Kershaw. 29935. Apparatus for accomplishing reversals, and adjusting and measuring the stroke on reciprocating machines. J. G. Shirk. 29949. Crushers. T. J. Sturtevant. 29989. Furnace grates. G. Pellegrino and B. Pellegrino. 30048. Furnace for annealing and tempering metals. C. J. Beaver and E. A. Claremont. 30079. Processes and apparatus particularly adapted for the manufacture of steel. N. E. Maccallum. 30110. Blasting devices. F. Kessler and F. Berger. 1913. 28. Shackles jfor connecting chains, links, and the like. W. G. Trew. 31. Steam brake. J. Dobeson. 32. Conveyors. William Beardmore and Co. Limited and R. Clark. 33. Centrifugal fans or blowers. W. J. Frame. 38. Petroleum engine. L. Williams. 40. Steam generator with forced circulation. P. Fouque and G. Charpentier. 54. Process of and apparatus for the manufacture of welded tubes. J. Bachem. 61. Steam superheaters. S. Hoffmann. 62. Dampers for use in connection with steam super- heaters. E. A. Bolton. 74. Apparatus suitable for stoking furnaces and like purposes. P. E. Williams and N. McPhee. 77. Method of and apparatus for recovering iron and steel from waste enamelled articles. A. de Back. 129. Steam traps. W. M. Still and Sons Limited and A. G. Adamson. 133. Driving means for the spindles of centrifugal separators. E. C. R. Marks. 134. Belt-driving gear for centrifugal separators. E. C. R. Marks. 145. Process for roasting carbonated iron ores. J. Sovigpet. 146. Furnace for roasting ores or other materials. J. Sovignet. 155. Water-gauge protector for high-pressure steam boilers. E. Schulz 184. Weighing-machines. J. P. Clifford and S. G. Murray. 204. Sinking pits and shafts. C. Walker. 207. Apparatus for compressing air or other gas. B. E. D. Kilburn. 264. Crushing, pulverising, and disintegrating machines. Patent Lightning Crusher Company Limited. 269. Treatment of wet carbonised peat or the like. T. Rigby and Wetcarbonising Limited. 277. Furnaces. J. C. James. Complete Specifications Accepted. To be published on January 16. 1911. 20917. Treatment of steel or iron surfaces for hardening and otherwise and apparatus therefor. Simpson. 28588. Gas and air compressor. Lane. 28597. Brake chains. Spary. 28603. Bearings for mounting wheels on axles. Bergische Patentachsenfabrik Ges. 28708. Steam superheaters for locomotive and like tubular boilers. Robinson. 28923. Automatic weighing apparatus. J. B. Karslake and A. H. Gibson. 28974. Explosives and method of manufacturing the same. Raschig. 29224. Magnetic separators. Fried. Krupp Akt. Grusonwerk. 29312. Loading, unloading and conveying shoots. Hobbs. 1912. 6202. Rock drilling and the like apparatus. Kubat. 10263. Centrifugal compressors. British Thomson-Houston Company. 15039. Steam superheaters for locomotive and other smoke tube boilers. Robinson. 16092. Process of briquetting fluedust and product of said process. Hubner.. 17648. Process for the manufacture of plastic metallic packings. Fried. Krupp Akt.-Ges. 25641. Nozzle for spraying water or other liquid. Dexter and Littel. To be published on January 23. 1911. 28730. Furnaces. Zulver. 28777. Rolling metals and mills and appliances employed therein. Doughty. 28851. Force pumps. Anderson, Symes, and Midland Railway Company. 28862. Steam generators for turbines. Wurtz. 28985. Coal-economising and smoke-consuming apparatus for stoves or furnaces. Fuchs. 29183. Water-tube boilers. Maxted. 29201. Magnetic separators. Fried. Krupp Akt.-Ges. Grusonwerk. 29205. Supply of secondary air for combustion in steam- boiler and other furnaces. Minorikawa. 22220. Process of manufacture of artificial fuel and appa- ratus therefor. Graigola Merthyr Company, Yeo and Goskar. 29223. Apparatus for regulating the temperature of molten metal or other liquids or fluids or solids. Weigert- sterne. 29230. Apparatus for the magnetic separation of ores and other material. Ullrich. 29324. Device to prevent the escape of dust, especially applicable to automatic weighing, apparatus for weighing granular, farinaceous, or powdery materials. J. B. Carslake and A. H. Gibson. 29334. Electric safety lamps. Dickie. 1912. 58. Steam generators. Pielock. 77. Rock drills. Edgar. 78. Portable unspillable electric battery lamps for use in mines, ships, and like places. Sparkes. 1863. Governing mechanisms for centrifugal compressors and the like. British Thomson - Houston Company. 4547. Apparatus for heating and pumping boiler feed- water. Morison. i 4836. Weighing apparatus. J. B. Carslake and H. Gibson. 7742. Furnaces and the like. Goldie. 8487. Manufactureof superheater and like tubes. Frandsen. 9993. Coke loading and screening machines. Fabry. 10046. Belt conveyors. Afzelius. 13033. Steam boilers. Boult. 17393. Apparatus for discharging coal and other substances from barges and the like. Suisted. 19657. Casting of steel ingots and the like. Kohlhaas. Complete Specifications open to Public Inspection before Acceptance. 1912. 2324. Methods of producing wrought shapes of manganese steel. Potter. 26281. Steam generators. Lemale. 28237. Spring-controlled centrifugal governors. Bergmann Electricitats Werke Akt.-Ges. 29182. Gas producers. Von Kerpely. 29235. Gastight feeding devices for mechanical roasting furnaces. Helsingborgs Hopparverks Aktiebolag. 29326. Continuous furnaces for the heating of billets, . blooms, and the like. Hutter. 29586. Cableways. Adolf Bleichert and Co. 29617. Apparatus for washing, separating and concentrating ores, minerals and the like. Michel. 29654. Means for mixing gas with air for gas furnaces. Hoeller. Institution of Mechanical Engineers.—An ordinary general meeting will be held in the meeting hall of the institution on Friday evening, January 17, at eight o’clock. The nomination of officers for election at the annual general meeting on February 14 will take place. Notice (in accordance with Article 22) will be given by the council of proposed alterations in and additions to the by-laws. A paper on “ Indicators ” will be read by Mr. James G. Stewart, of Dundee. A meeting of the graduates will be held on Monday, January 13, at 8 p.m. Renewed Activities in the Barnsley Coalfield. — A correspondent says it is over 20 years ago since the late Mr. Robert Miller, a local mining engineer, expressed the opinion " Barnsley is the central place for extensive coal- winnings and at a period not far in the future. True, the Barnsley bed had been worked out at several collieries and in the immediate vicinity of Barnsley it is in fact exhausted. But that does not prove that there are no other seams of coal in the neighbourhood of Barnsley.” Mr. Miller pro- ceeded to point out that there were six or seven different beds at depths varying from 60 to 435 yards below the Barnsley bed, viz. ; Swallow Wood, Fenton, Flockton, Parkgate, Silkstone and Whinmoor. It is interesting to note that the Pinder Oaks Colliery, situated on the boundary of the borough of Barnsley, was selected as the central point of Mr. Miller’s argument, for it is at this colliery where new enterprise is to be shown in regard to the getting of the valuable, if thinner, seams. The Pinder Oaks Colliery, after the Barnsley bed had been exhausted, at a depth of 226, yards was closed in September 1885, but the two 9 ft. shafts sunk to the Barnsley bed along with surface buildings have remained intact, so that if the accumulations of water in the shafts be effectually dealt with, new operations will not be unduly delayed. About the time when the collieries were closed there were many mining engineers who showed foresight by strongly recommending a scheme to be carried out by the joint coalowners of erecting a pumping station at the colliery which is situated at the furthest point of the dip, and this would have dealt with the water problem in view of further enterprise. This, however, did not mature, and probably the success of the new venture depends largely upon the extent of the water trouble. The firm who are reported to have interests in Scotland have completed the necessary arrangements with the landowner to reopen the colliery, and it is understood that, for the present, their attention will be directed to the working of the Abdy and Winter seams, which are about 3 ft. in thickness and lay nearest to the surface. There is a considerable area of coal got, and it is said that the firm contemplates erecting a modern coke-making plant. The new venture, though, comparatively speaking, not of large dimensions, will be watched with a great deal of interest by the local mining community. It has long been asserted that, in spite of the rapid developments of the newer part of the coalfield in the Doncaster district, where, no doubt, the greater output will be obtained, that eventually the quality of the coal would become a very material factor in the situation. At the present time, whilst, admittedly, the volume of trade is of an abnormal character, modern engineering industries find it more satisfactory and economical to obtain the best quality coal they can, and from this standpoint it is felt there must be a big future for the immediate Barnsley district, where the valuable Parkgate, Silkstone, and other thin seams are left intact, and are known to be seams of a valuable character. It may be recalled that the Old Silk- stone Colliery Company Limited, the owners of Church-lane and Stanhope Silkstone collieries, are contemplating extensive developments for the working of an area of 7,000 acres containing the Whinmoor and Beesten seams, in the near vicinity of the town, whilst there is every possibility of other pits, where the Barnsley bed is being exhausted, sinking to the Parkgate seam, which lies about 300 yards below the Barnsley bed, with a thickness of 5 ft., and is of an unusually good quality.