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174 THE MARINE REVIEW February, 1919 THE LYSHOLM PATENTED PLATE PUNCH TABLE Punching 4000 Holes Per Day In Steel Plates Rapid production in punching holes in boiler plate is made possible on this machine by means of a roller table. Lateral and sidewise movements are under the lever control of the operator. The tables are built with roller bearings to facilitate rapid movement of the work. @ Plates up to 30 ft. x 8 ft. from 14" to 114" in thickness may be handled readily. Various shipyards and plate shops have reported records that average 4000 holes per nine-hour day. 6700 holes in a nine-hour day is a common occurrence. Full information on request. Manufactured The Norbom Engineering Co., Denckla Bldg., Philadelphia, Pa. HERMasTIC gives durable protection PERMANENT COATINGS FOR BILGES, TANK TOPS, COAL BUNKERS, INNER BOTTOM TANKS, FLOORS, PEAKS, REFRIGERATING SPACES AMERICAN BITUMASTIC ENAMELS COMPANY 17 BATTERY PLACE, NEW YORK PHILADELPHIA CLEVELAND SAN FRANCISCO Prevent Delay in Your Shipyards— make your own treenails with Ober Treenail Machines Don’t depend upon outside sources for your nails. One Ober Treenail Machine will produce from 500 to 700 treenails per hour. Just the machine you need for your plant. Send for complete catalog THE OBER MFG. CO. Chagrin Falls, Ohio | Please mention THE Martine Review when writing to Advertisers , ‘ ; 4 ;