. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . the tension of the mainspring by push- 360 FIKE-ARMS. ing its inclined surface above the roll of the hammer, thus utilizing both motions of the bar-rels and making the forces required to open and close them more nearly equal. The main-springs move on rolls, making the friction tlie least possible. The safety apparatus doesnot require the cutting away of the stock, .so that the stock is very strong. The triggersare f
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . the tension of the mainspring by push- 360 FIKE-ARMS. ing its inclined surface above the roll of the hammer, thus utilizing both motions of the bar-rels and making the forces required to open and close them more nearly equal. The main-springs move on rolls, making the friction tlie least possible. The safety apparatus doesnot require the cutting away of the stock, .so that the stock is very strong. The triggersare firmly secured by a positive-lock and not by springs. The hammers can be let downseparately or together by pressing the safety-slide forward and pulling one or both triggerswhile closing the barrels. Tlie Parker Gun, manufactured by Parker Bros., of Meriden, Conn., is represented in and 16, the arm being shown open at Fig. 16 and closed at Fig. 15. The mechanism oper-ates as follows: Pressing upon the finger-piece 1, in front of the guard 2, raises the lifter 3, and its bev-eled side coming in contact with the screw asa wedge to draw the bolt 5 from the raor-.
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
