June 22, 1917. THE COLLIERY GUARDIAN. 1159 AERIAL ROPEWAYS ANY SYSTEM. FOR SALE OR HIRE. The British Ropeway Engineering Co. Ltd., 7, MINCING LANE, LONDON, E.C. 3, Tele—CENTRAL 1 1250. We are Makers of NAYLOR’S APPROVED BIFOLD MARSAUT LAMP. Gives the best light, is the best Gas Detector, and the Safest Plame r»rn”nrf»We. if. It requires about 5 B.H.P. to .... ...J gives Stalk 'A Rw For all duties. ** J. BLAKEBOROUGH & SONS Ld. BRIGHOUSE. Hire terms fur- nished on appli- cation. NEW MINES ACT. Approved Miners9 Lamps TO MEET ALL REQUIREMENTS OF THE ACT. Arranged for Electric Ignition and with Mag- netic Lock. Particulars furnished on application. Demonstrations arranged by appointment. J. H. NAYLOR, Central Brass Works, Established 1861. WIGAN. Its all in the rigid Rib. “Bennis” Truck Tippers save trimming ’ I THS TRUCK TIPPER is designed to empty Standard Railway •1 Trucks by lifting one end of the truck so that the coal will flow by gravity through the end door of the truck. It consists of a massive ram, at one end of which a crutch is fixed, which engages with the rear axle of the truck. The ram is raised and lowered by a screw thread, which runs the whole length of the ram. raise the full truck, and the tipper can be arranged to drive by a belt from adjacent shafting, if electric power is not available. Ed. Bennis & Co. Ltd., Little Hulton, Bolton, & 28, Victoria St., S.W. 1. Sz’ CollieryBuildings No more unsightly buildings The nature of the ground in colliery districts necessitates a light '''’AC- weight type of building. On account of ground trouble many unsightly structures of timber and corrugated iron have been erected. There is no longer any need for this. A building erected with Hy-Rib and structural steel not only the desired lightness, but is far more attractive in appearance. Hy-Rib is a Ribbed Steel Lath which needs supports at I Oft. centres only, and readily takes 2 in. of cement plaster. Its use ensures the most rapid permanent con- struction possible, the building costs little or nothing for maintenance and is superior in every way to the usual type of building. Illustration shows the Sharlston Colliery Co. s Pit Head Buildings, erected on this principle. Send for Handbook and learn of it» utility. THE TRUSSED CONCRETE STEEL C° L™ 64, CAXTON HOUSE, WESTMINSTER, S.W 1