The machine is provided with a pair of rolls at each end of the bed, which
are adjustable for different lengths of shaft, and are made to revolve by
power applied through suitable gearing and a splined rod inside the bed;
the bar of iron being placed on the periphery of the rolls receives a
rotary motion by friction, and shows the crooked places in the same way
and with the same ease as though rotating on centers in the usual manner;
vertically adjustable blocks are arranged in the base of the press to
support the iron; power is applied by means of gearing to a splined rod at
the back of the machine, on which is a sliding clutch connecting, at the
will of the operator, with an eccentric; the eccentric conveys motion and
power through a link to the elbow joint at the front of the press, which
forces a plunger down against the iron.
[Illustration: POWER STRAIGHTENING MACHINE.]
Sufficient adjustment is provided for different sizes of iron by turning a
nut at the top of the press.
Any point in the length of the bar can be reached by moving the press on
the bed. Any length of iron can be straightened, and the most laborious
and disagreeable work in the process of making shafting is rendered easy
and rapid. Made by Wood, Jennison & Co., Worcester, Mass.
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