October 4, 1918. THE COLLIERY GUARDIAN. 687 INCREASE YOUR OUTPUT. WINDING & HAULING ENGINES up to the largest sizes. STEAM and ELECTRICALLY DRIVEN. WE CAN GIVE YOU THE BEST SERVICE AT THE LOWEST COST. NO LEAKAGE OF ACID BRITISH PRODUCTIONS ENTIRELY ACCUMULATORS for all purposes. Telegrams— “ PELECTLYTO, BOCHURCH, LONDON.” Telephone— 119 STRATFORD. 1$ K P 112 ' pipin': Worsley Mesnes Ironworks Ld., WIGAN. AIR-COMPRESSING ENGINES AND PUMPS. BREAKDOWN REPAIRS A SPECIALITY. Telegrams—“ ENGINES. WIGAN.” Telephone—No 46 WIGAN. NATIONAL IMPORTANCE SAVE FUEL Firemen’s Emergency Pocket Lamp. Size 51 in. by 4 in. Miners’ Electric Lamp. Weight 41 lb. gSIMPLET Fit up a -CIRCULATOR CIRCULATOR. ■ J J Can be installed in a few hours without interfering with existing fittings. Adopted by Collieries, Iron & Steel Works, and all large steam users. MORE POWER Pearson’s Electric Miners’ Lamp C? L! Victoria Works, Marshgate Lane, Stratford, LONDON, E. 15. THE LONDON SIMPLET ENGINEERING CO., Ltd. BOLTON HOUSE, CULLUM STREET, FENCHURCH STREET, E.C. 3 Telephone : Avenue 872. LABORATORY— 20 CULLUM STREET, E.C.3. Telephone: Central 11029. Telegrams : ,l Lonplet, Fen, London.” WELDLESS STEEL TUBES AND CONSTRUCTIONS. British Manufacture throughout. High-class Quality. Excellent Finish. Accuracy. The material for your requirements may be in stock. J. E. SLACK, SO, QUEEN VICTORIA STREET, LONDON, E.C. Depot—Millwall. Telegrams—“ Jeslaker, Cannon, London.” aMll^pwM»mwiruwRnrnnTr^r-«F>’- •1 I -WIT-' Illi III ■III—■ HAMMERED CAST IRON Premier Works, PISTON RINGS Don Road, SHEFFIELD (by the Davy-Robertson Process). All aizes from 24 in. to 72 in. In our Special Piston Ring Iron. THE STANDARD PISTON RING & ENGINEERING CO. LTD., QUICK DELIVERT. LOW PRICES. ’ft'ST -oSKSKm.- 1 SOUND INVESTMENT. Food for your Horses prepared in half time with half labour. Installations can be seen from 5 cwt. to 5 tons per hour. Telephone—3241 (2 lines). Telegrams—” Elevator, Leeds.” GEORGE PORTEUS, Engineer, LEEDS. “THOMPSON” BOILERS OF ALL