December 10, 1915. THE COLLIERY GUARDIAN. 1171 Your steam output can be doubled if you use a “ Bennis ” Mechanical Stoker. At the present time this should be decisive, but “ Bennis ” Stokers will give this service with the worst kinds of pit rubbish without injuring the boilers. The only thing that matters just now is output. This must be kept up at all costs—rapidly and continuously. The fuel you cannot sell can be burned in “ Bennis ” Stokers. Our Self-cleaning Compressed Air Furnace is specially designed for hand-firing in Collieries and other places where abnormal firing conditions obtain. May we send you full particulars ? ED. BENNIS & CO. LTD., LITTLE HLJLTON, BOLTON, & 28, VICTORIA ST., S.W. 0, Liewellin Evans, PROPRIETOR OP THE Cardiff Brattice Cloth Company, AGENT FOR Hotel's Explosives. 120, BUTE ST. CARDIFF. «? '■ Xy*' jk’’' | | Patented 1902, 1906 and 1910. Automatic Detachment. The 1911 lever has large lateral stops and a wedge-shaped head. Drop-forged shells (two sizes), levers (four sizes), catches and couplings. SMALLMAN patent HAULAGE CLIPS. New Model: Nine Sizes. Illustrated Catalogue. Clips can be had without catches. Patentee and Sole Manufacturer:— JAMES W. SMALLMAN, Nuneaton, England. M ■ El H H @ a More Light means Cleaner Coal, Less Roof Accidents, and Freedom from Nystagmus. . . . =—_ HAILWOOD’S . Combustion Tube Lamp is cheaper, more reliable, and has greater candle power than electric lamps. ACKROYD & BEST Ltd., Morley, nr. Leeds.