Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . Fig. 3605.. Fig. 3606. Feg-CuUing Machine. tube, assuming a vertical position, and are drivenhome by a plunger actuated by a spring a and re-tracted by a pin on the wheel b engaging a shoulderon the plunger. The shoe is advanced the proper distance to driveeach nail, by a swing-plate c, whose foot is alternate-ly lifted in and outof contact there-with, and is he
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Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . Fig. 3605.. Fig. 3606. Feg-CuUing Machine. tube, assuming a vertical position, and are drivenhome by a plunger actuated by a spring a and re-tracted by a pin on the wheel b engaging a shoulderon the plunger. The shoe is advanced the proper distance to driveeach nail, by a swing-plate c, whose foot is alternate-ly lifted in and outof contact there-with, and is held atthe moment ofdriving by the footof the peg-tube. The shoe is fixedon a jack mech-anism consistingof: (1) a support-ing upright d piv-oted to the endof aweighted lever, and is so swiveledas to admit of move-ment both laterallyand vertically; (2)jack-holder cjoinedto the upright by apin /, its vibratorymovement on theu]iright being re-strained by stopsso as to limit thetipping of the last.A spindle g pro-jects from the hold-er on which thejack is mounted, and is supportedon a socket piece, allowing free ro-tary movement ofthe jack on thespindle; (3) a last-holder /;, supporteddirectly over thespindle by a screw, and having a curved arm i t