August 2, 1918. THE COLLIERY GUARDIAN. [supplement page III.] 249 “CAMEL HAIR” BELTING. (REGISTERED TRADE MARK) The Strongest, most Flexible, and most Durable Belting obtainable. 45 YEARS Unblemished Repu- tation as a power transmitter of highest efficiency. All genuine belts bear our registered trade mark. SOLE MANUFACTURERS: F. REDDAWAY & Co. Ltd., PENDLETON, MANCHESTER. London: 50/5 1, Lime Street, E.C. E. C. THEEDAM LTD. DUDLEY, Wore., Factors and Manufacturers of Colliery Requisites. Mechanical & Electrical SIGNAL BELLS. Ordinary and Indicating Signal Bells (Mechanical and Electrical) with Indicator and Non-accumulative Ringing Lever or Key, ELASTIC ENAMELLED PLATES FOR NOTICES IN COLLIERIES & MINES. Abstract of C.M.R. Act, General Regulations, Signals (Winding, Sinking & Haulage), Electricity Notices, Restoration Plates, &c. Coal Baskets, Steel f Chimneys, Coal Rakes, Elevator Buckets, Mining Kibbles, Haulage Clips, Barrows, Pit Tubs, &c. MECHANICAL ENGINEERING OF COLLIERIES. T. c. PBJTERS. Vol. I., Price ais. net (By post 21s.9d.). Vol. II., Price ios. 6d. net (By post 11b.). SUPPLEMENTARY VOL.—Price ios. 6d. net (By post 11b.). THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C. 4 THOS QXLEY P Iron, Steel & Machinery Merchants, Shiloh Works, SHEFFIELD BUYERS OF SCRAP IRON, STEEL, METALS AND OBSOLETE PLANTS. A CONTINUAL STOCK OF SECOND-HAND MACHINERY THOROUGHLY OVERHAULED. — LIGHT AND HEAVY SECTION RAILS.- Telegrams—“IRONICAL, SHEFFIELD.” Telephone—4630 (6 Lines). ^Jiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiimiiim TWO CENTURIES’ REPUTATION. IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIHIIIILh STEEL FOR ALL PURPOSES Illlllilllilllllll COLLIERY TOOLS OF EVERY DESCRIPTION CELEBRATED HALFMOON FILES MATTHIAS SPENCER & SONS ALBION STEEL WORKS SHEFFIELD TELEPHONE : TELEGRAMS : 1231 SPENCER CENTRAL. SHEFFIELD. hi 11111111111111111111111111111111111 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiimiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiimiiT NOTICE=REMOVAL FASTNUT V Owing to our Premises at 161, Great Portland Street, W. I, being Commandeered by Govern- ment, we have REMOVED to 49, Queen Victoria St., LONDON, E.C. 4. Telephone - City 7674. Warehouse & Stores—14, Normans Buildings, E.C. INSTALL Rrcom 6 Wade AIR. COMPRESSORS Because they— Are totally enclosed and perfectly dustproof ; Need very little attention ; Are of the simplest possible design, having no superfluous parts to increase risk of breakdown ; and Have extremely high efficiency, which is maintained for very long periods under the most unfavourable conditions. IN YOUR COLLIERIES 0: Sizes: 5 to 1000 cu. ft. per minute. ANY DRIVE. COMBINED STEAM DRIVEN COMPRESSORS----PORTABLE SETS. BROOM & WADE LTD., High Wycombe.