ITW #3424B-3C VARIABLE INVOLUTE MEASURING INSTRUMENT, USED
#32 Wood Dale, IL Ser. #11016 New 1981
This machine utilizes a master base diameter & an adjustable ratio arm,
providing an infinitely variable range of base circle diameters.
SPECIFICATIONS: 24"max.gear dia., 0" min base dia., 72" max.between centers,
12" max.travel of indicator, 5" max.travel of apron from either side of zero
setting, max.diametral pitch 2 DP, 65 deg.max.roll, 50" x 57" approx.floor
space, 130" approx.height, 4000 lbs.approx.weight.

EQUIPPED WITH: Extra height tailstock column allowing 72" between centers,
steady rest w/8" dia.cap. allowing testing of parts greater than 72" in length,
limited capability to test & chart lead of spur gears or splines, Mdl.1606
Illinois hot pen rectilinear recorder, dial indicator/pickup head, Heidenhain
digital base circle readout.

Preliminary Specifications Subject to Verification.