280 THE COLLIERY GUARDIAN. August 9, 1918. HADFIELDS L ■ Colliery Requisites of every description. COMPLETE STONE BREAKING and ORE CRUSHING PLANTS. Steel Castings and Forgings of all kinds. Sole Makers of HADFIELD’S PATENT “ERA Manganese Steel THE SUPREME MATERIAL for Railway and Tramway Special Track-work; also wearing parts of Stone Breaking and Ore Crushing Machinery, etc. Hecla & East Hecla Works, SHEFFIELD. Works area over 200 acres. Workmen employed over 15,000. NAtwsLas lTt> ■■ . ... HADFIELD’S DUST-PROOF COLLIERY TUB. The wheels are fitted on the axles by Hadfield’s Special Loek-fast method, which gives absolute security. LATCH & BATCHELOR Ltd. AMALGAMATED WITH WEBSTER & HORSFALL. (Established 1730). Wire Drawers, Manufacturers of all classes of Wire Ropes. INVENTORS, PATENTEES AND MANUFACTURERS OF LOCKED COIL AND FLATTENED STRAND WIRE ROPES, HAL LING 4 F.S. WINDING. 13b F.S. NON-TWISTING. 20 LOCKED COIL GUIDE. 21 PATENT FLATTENED STRAND LOCKED COIL WINDING. LOCKED COIL WINDING. 20a LOCKED COIL AERIAL. Works: HAY MILLS, BIRMINGHAM. Telephone (2 Lines): 338, 339 VICTORIA, BIRMINGHAM. Telegraphic Address : LATCH, HAY MILLS. BRITISH SCIENCE GUILD EXHIBITION. We are exhibiting at the Exhibition to illustrate the progress of British Scientific Products, to be held under the auspices of the British Science Guild, during August and September 1918 at King’s College, Strand, London, and which will be opened by the Prime Minister. This Exhibition relates chiefly to products imported from enemy coun- tries before the War and now made in this Country. Hadfield’s Special “COAL-CUT” STEEL for Coal Cutter Bits is unsurpassed for Durability. Melksham BRANCH OFFICES. gPENCER & QO. LD Engineers, WILTS HULL- Burnett Avenue. CARDIFF- 92, Claude Road. LONDON- 32. Queen Victoria Street, E.C. 4 LIVERPOOL- 34, Castle Street. Write to the Manufacturers for details of their Corbie Portable Welding and Cutting Plants. “ FOOL-PROOF” describes the Carbic Weld- ing and Cutting Plant. The Generator consists of but four portions, and is entirely without moving parts, valves, or anything liable to stick. It’s a model of ‘ fool-proof” simplicity. The control is automatic, and each Carbic Cake is guaranteed to produce a stated number of cubic feet of acetylene either by con- tinuous or intermittent use. SPECIALISTS IN ACETYLENE, 51. HOLBORN VIADUCT, LONDON. E.C.l WJkT AVERY LTD., a”^f£S£)’ BIRMINGHAM. WIRE ROPES OF ALL KINDS. Agent^ for Yorks, Notts. Derby & Leicester— YEADON, SON & CO., Albion Place, LEEDS. W. B. BROWN & CO. (BANKHALL) LTD., Globe Works, Liverpool.