March 2, 1917. THE COLLIERY GUARDIAN. 455 ^iihiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiuiiiiii^ BELTING R. Solid woven unseparable plies. Unlike other Rubber Belts. SOLE MAKERS E REDDAWAY & PENDLETON, MANCHESTER. LONDON OFFICE 5O/l LIME ST.,E C. THEEDAM’S IMPROVED OVER 500 IN USE. A common rope well lubricated will last longer than the best rope not lubricated, is admitted by the most competent authorities. To Save Oil, Time, and Prolong the LIFE of Your ROPES, USE . . There is no need to emphasize the necessity of keeping Wire Hopes WELL LUBRICATED. PIT ROPE OILER. Illustration of Haulage Rope Oilers on application. Makers : E. C. THEEDAM Ltd., DUDLEY, ANNALS OF COALMINING & THE COAL TRADE. Bx Post, 25s. 9d. By ROBERT L. GALLOWAY. Price net. The Colliery Guardian Co. Ltd., 30 & 31, Furnival Street, Holborn, London, E.C RUBBER-FILLED AND RUBBER-COVERED. The only Rubber Belt that cannot open in the plies or split in the seams. THE MOST PLIABLE BELT MADE. Stronger than leather or any other kind of Belt. FULLEST POWER TRANSMISSION. Less Slippage. Less Stretch. Less Trouble. Longer Life. MOST ECONOMICAL AND EFFICIENT. We fully guarantee this Belting. BEST for transmission of power. BEST for elevating all kinds of material. BEST for conveyor work. BEST for hot conditions in cement plants, steel mills, mines, rock crushers, etc., etc. Full particulars from The ELECTRIC HOSE & RUBBER C" L" 55, CAXTON HOUSE, WESTMINSTER, S.W. Tel.: Vic. 4341. 511111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111^ WASTE TIME “ ASTNUTS ” Use No TROUBLE to FIT or REMOVE. No damage to bolt. Specified and used by the War Office Admiralty. and SAVE TIME & MONEY. One firm use over 200,000 monthly. IN USE on over 60 Collieries. SAMPLES, Calendar and Matchcase, FREE. ----- We develop and purchase good mechanical patents. —-- “ FASTNUT” Ltd., 115, Newgate St., London, E.C. BUMSTED & CHANDLER LTD. Cannock Chase Foundry and Engine Works, HEDNESFORD, STAFFS. Telegrams— “ Bags. Hednesford.” Telephone—48 Cannock. Rro&m & Wade AIR compressors V--------F!--- FANS AND ENGINES FOR MINE Ventila= tion, with Special Reversing Doors. tUfrCoiisRY J High Speed Engines FOR LIGHTING and POWER. Centri- fugal Pumps. Haulage Gears, &c. Above illustration shows our Steel Cased Reversing Fan, which is passing a larger volume of air than the 40 feet brick-cased fan alongside it. Totally Enclosed and Perfectly Dustproof. Need the minimum of attention. THEY ARE Particularly suit- able for working in Dusty situations. MICHELL PATENT THRUST BEARINGS. WORKS : High Wycombe. EFFICIENT e DURABLE e ACCESSIBLE SIZES : 5 to 1,000 c. ft. ANY DRIVE, Fixed or Portable. HYATT ROLLER BEARINGS.