. Railway mechanical engineer . Fig. 2—Control Head in Adjusting Position on Punching Machine (Right) Shearing Machine with Control Head in Operating Position for camming the capstan bar out of the capstan, should themachine be accidentally started. The driving shaft is turnedfrom machine steel, and runs in babbitted bearings. Thetool-blocks are made of cast steel, the upper block beingtongued to the sliding head and the lower block bolted tothe frame. All tool-blocks are interchangeable on machinesof like capacity. A patented floating punch which combinesa fixed and a floating punch in one to
. Railway mechanical engineer . Fig. 2—Control Head in Adjusting Position on Punching Machine (Right) Shearing Machine with Control Head in Operating Position for camming the capstan bar out of the capstan, should themachine be accidentally started. The driving shaft is turnedfrom machine steel, and runs in babbitted bearings. Thetool-blocks are made of cast steel, the upper block beingtongued to the sliding head and the lower block bolted tothe frame. All tool-blocks are interchangeable on machinesof like capacity. A patented floating punch which combinesa fixed and a floating punch in one tool facilitates spacing. Fig. 3—Single End Punching Machine with Mechanical Control andBelt Drive table work. A tool-block can be removed in an instant bya quarter turn of a handle. Eight Sizes of Machines Made This line of machines is made in eight sizes, the smallestof which has a capacity for punching a ^-in. hole throughmild steel plate }i in. thick; shearing 3-in. by 9 stock, l,>^-in. round stock, and 2-in. by 2-in. by 3/16-in. angle-iron; and splitting plate up to 7/16 in. thick. Thestandard throat dimensions are made 6, 12, 18 and 24 largest size machine has a capacity for punching a 23/2- December. 1922 RAILWAY MECHANICAL EXGIXEER 733 in. hole through mild steel plate 1 in. thick; shearing lj4-iii- flat stock, 23-2-in. round stock and 6-in. by 11/16-in. angle-iron; and splitting plate up to 15/16 in. thick. The standard depths of throat for machines of thissize are 15, 24, 36 and 48 in., which sizes provide for cov-ering an extremely wide range of work. New Sizes
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
