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Equipment Used Afloat. Ashore Platen Vise for Drilling and Reaming--Power Hammer for Ship- yard Work--Modern Ships' Range Designed for Heavy Duty parts, means for clamping the work on the drill press platen must frequently be provided. This procedure involves hunting up bolts and straps to say nothing of the time consumed in locating the pieces in position for the machining operation. The device shown in the accompanying illustration recently was designed by the Sprague-Hayes Mig. Co., Detroit, to. furnish a ready means for holding work on the drill press for drilling and reaming. The device in. general design re- sembles a milling machine vise with' the difference that the top is circular and finished like a drill press platen. The back jaw is stationary while the front jaw is. actuated by 'means of a sub- stantial square-threaded screw. The jaws that hold the work are ~case hardened to protect them from undue wear and finished by grinding to in- sire accuracy. Special jaws for hold- ing odd-shaped pieces can: readily be substituted for the plain jaws as used T DRILLING and reaming machine HIS DRILL PRESS PLATEN IS EQUIPPED WITH JAWS FOR LOCATING THE WORK TO BE MACHINED ' accidents. practice. its in ordinary milling machine As the device can be rotated on center and swung in an arc under the drill press spindle, the work is readily centered after the method used in ordi- nary drill' press practice. When the jaws are closed together the device forms an ordinary drill press platcn. The front or movable jaw, is equipped with ample bearing slides and is pro- vided with gibs for taking up wear. Power Hammer The hammer shown in the accom- panying illustration is a.recent de- velopment of the United Hammer Co., Boston, and is said, to be particularly adapted to shipyard. work... A novel feature of this tool is the heavy guard that surrounds the working parts, thus protecting the operator from possible The guard is devised to comply with safety laws enacted by several states. It is equipped with a door at the front so that the work- ing parts are easily accessible for oil- ing and inspection. The hammer is operated by an ad- justable which permits the eperator to lengthen or shorten >the stroke as occasion requires. Motion is applied to the hammer head through the medium of a connecting rod which carries a. crosshead connected: to the hammer head by means of links. To obtain an elastic blow, a heavy spiral spring is used. This, it is pointed out, lessens the danger of breakage and also prevents undue shock to the ma- crank chine.- The arrangement is , said to give a. quick, sharp blow. which is effective in forging work. (he main irame is a i-piece cast- ing arranged with a circular opening at the back opposite to the face of tie dies. This enables. the. operator to run long stock through the dies when necessary. The shaft journals are cast integral with the frame which assures proper alignment at all times. The frame is proportioned to withstand the strain set up by heavy blows in forging. The anvil base is fastened to the main frame through the medium of Steel straps -held in place by nuts. The hammer can be driven from a line shaft or it may be equipped with in- dividual motor drive. These hammers are made in several Sim= trom 25 to 500 pounds. The 500-pound size occupies a floor space ef 40 x. 53 inches and runs. at a maximum speed of 175 blows a 560 minute. With a-11%-inch stroke, it is adapted to work 6-inch rounds or squares. This size hammer weighs approximately 9800 pounds. Ships' Range The range shown in the 'accompany- ing illustration is a development of the Bramhall, Deane Co. New York, de- signed for heavy duty. It is equipped w:th either hard or soft coal grates and a double plate shelf, its entire length being 7 feet. Two fire chambers. are POWER HAMMER FOR SHIPYARD WORK provided. These are of ample dimen- sions and are lined with fire brick. In the' consttucion of this oucfit, rust resisting steel is used to a great extent. It is pointed out that the cooking sur- face is heavily proportioned to with- stand the action of hot fires for con- tinued periods. The top of the range is equipped with the usual racks to ptevent cooking utensils from sliding