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August, 1926 MARINE REVIEW | 71 _ THE CRANDALL ENGINEERING Co. _ CONSULTIN ' ENGINEERS CONTRACTING ’ TON, MAss. | Ce “ae | DESIGNERS OF DRY DOC Bos S Cummings MASTER Combination Counter & Telltale Officially approved as conforming to Emergency Fleet Technical Order No. 104 IMMEDIATE DELIVERIES Talk This Over With One of Your Ship’s Carpenters Ask one of your experienced ship’s carpenters how much time it would save him if he could eliminate all hand sawing and planing on his repair jobs. He probably will say it would at least double the amount of work he can turn out. Think what a saving in repair expense this would mean—all as the result of a small investment in a Master Woodworker for each ship. The Master is a complete woodworking shop—twelve machines in one, doing: routing, planing, rabbeting, boring, ripping, grinding, stair housing, jointing, moulding, crosscutting, tenoning, mitering, plowing and mortising. Continuous Rotary eight figure large numeral counter with no trouble some reciprocating parts. : Countershaft geared down | to 10 of main shaft. ‘ Q Positive counter with adjustable friction-drive telltale, 9-inch dial. Same hardened steel counter as used by U. S. navy on all destroyers, battleships, etc. Return coupon for full information. MASTER WOODWORKER MFG. CO. 614 Brush Street, Detroit, Michigan To determine R. P. M. hold watch in one hand and telltale on zero with other hand, release and stop after interval of 60 seconds. We also furnish driving mechanism from main shaft to counter. Cummings Machine Works 255 Atlantic Ave. BOSTON, U.S.A. Show us how we can save money on ship repairs by installing Master Woodworkers. Please mention MARINE REVIEW when writing to Advertisers