1294 THE COLLIERY GUARDIAN. December 29, 1916. FERRO-CONCRETE LINING Walter Scon Ltd Leeds, LEEDS STEEL WORKS. England. YEARS of STUDY and EXPERIENCE HAVE BROUGHT MY SYSTEM OF CEMENTATION TO PERFECTION. TO COLLIERY PROPRIETORS. Shafts sunk, tunnels driven, and other mining constructions carried out in difficult and very wet ground by the best method. Success guar- anteed. 18 shafts completed in England, and 7 in progress. Ferro-Concrete Lining a speciality. Feeders of water in shafts or levels effectually treated. MANUFACTURERS OF BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS, TRAMRAILS AND PERMANENT WAY RAILS, &o. Example of 10 in. x 6 in. >- 12 lb. R.S. Joists curbed for Framework^to^Roadway. STRUCTURAL STEELWORK FOR BUILDINGS, &c. Mild Steel Blooms, Billets, Slabs, Tinbars, Rounds & Flats. Rolls cut for Special Sections and to approved quantities Books of Sections and other information on application. Pit Head Frame. Erected in Works for inspection. ♦ \ V." ® ra g / <&> ? J » ALBERT FRANCOIS, - * Telegrams— Francois, Doncaster,’* Telephone—408 Doncaster. QUALITY in SWITCH GEAR LIQUID SWITCH GEAR of HIGH- CLASS MAKE and GOOD DESIGN. WRITE for LIST No. 50 with PRICES and DUTPUTs. ROLLED STEEL JOISTS for PIT PROPS, FRAMEWORK TO ROADWAYS. &c. J. H HOLMES & O0M Newcastle-on-Tyne. EDWIN LEWIS & SONS, IM Original Makers of “Acme,” “Williams,” and other Loose Flanged Joint Tubes for Mining Work. * TUBES OF ANY SIZE For Compressed Air, Water, or Steam. Telegrams—“ Lewis, Wolverhampton.” Telephone—Nos. 15 <5 180 Wolverhampton. (Patent Iron Tube Works, Monmore Green. (Britannia Tube Works, Ettingshall. WOLVERHAMPTON. Buyers will note that the joint illustrated is our original “ Acme ” joint used largely for vertical columns as it is quite rigid, and suitable for sinking or per= manent work. LONDON ADDRESS—143, Cannon Street, E.C. LIVERPOOL WAREHOUSE-58, South John St. BSdWe’sdpttent Friction Clutches <& Hauling Installations A SPECIALITY SEE ADVERTISEMENT LAST ISSUE, PAGE 1247. Sole Makers— DAVID BRIDGE & CO. LTD. Haulage Works, CASTLETON, Manchester. NEW PATENT NQ 20901,1915. | iwt/r£rofi sworos. ro sol£ mmuw 1', kiai PATENT __ I L J I ■ I J I L J. p PAIR. AUTOMATIC lEVflNS ODODD.'^ L2 _ | CANNOCK. | No. 48. Haulage Rope. STEEL WIRE ROPES No. 59. Winding: Rope. In FLATTENED STRAND LOCKED COIL and OTHER SPECIAL CONSTRICTIONS FOR MINING AND ENGINEERING PURPOSES. Telegrams—‘ ‘Universe, Birmi ng ham. * ’ Telephones—Birmingham 6914 Central (3 lines). Stop Taking Risks! Highest Efficiency, Longest Service obtained by using only “CHEKKO” BRAKE & CLUTCH LINERS. CRESSWELLS’ LD., Wellington Works, Bradford. J. 6 E. WRIGHT (Established 1770) LTD‘ Universe Wire Rope Works, BIRMINGHAM. Highest ‘Quality No. 49. Winding- Rope. The QUARRY. Price— 6d. monthly. Annual Subscription, 7 s. 6d. post free (payable in advance). Offices— 30 & 31, Furnival Street, Holborn, London, E.C. Guide Rope. No. 64. r TIME^f /CHECKS \ AND \ BRASS / \§ood PROVENDER Prepared in Half Time with Half Labour. DRAWINGS, SPECIFICATIONS, for Complete Plants from 5 cwt. to 5 tons per hour. Ml, PATENT DUST EXTRACTORS. PATENT MIXERS. CRUSHERS and SIFTING MACHINERY. Telephone-3241 (2 lines). Telegrams—*• Elevator, Leeds.” GEORGE P0RTEUS, Engineer, LEEDS.