February 23, 1917. THE COLLIERY GUARDIAN. 371 WORKING PARTS OF JEFFREY COAL CUTTERS •OQ CLutzrf, (Wcher Drive Lcveh Pawl [or Rakher RaFcAt,/' Wkul P>won Sit eve fog Rafcktl- ^E a R foR OniyiNg Pinion COMPARE The four-gear six-speed Jeffrey Haulage with a twelve gear, one-speed continuous cutting Haulage. With the Jeffrey Machine, the rate of travel can be varied from ten to ninety yards an hour without stopping the machine. The one-speed continuous cutting Haulage can not be changed without completelv dismantling a complicated train of gearing. We guarantee to replace any broken clutches or haulage gears within two years caused by our friction clutch not slipping. HUGH WOOD & Co. Ltd., NEWCASTLE-ON-TYNE. LONDON : 65, Fenchurch St., E.C. CARDIFF : 102, St. Mary Street, MANCHESTER : The Hive Works, Trafford Park.