Device for helical marking of cylindrical specimens.
A device is described for holding and scratching to variable depth, small diameter wires extruded from soft metals. Drawings and relative dimensions are shown. Adescription of the helical guide strips used in the device is also contained.
Domkowski
A J
AJ
Department of Physics, Stephen F. Austin State University, Nacogdoches, Texas 75962.
Burroughs
J J
JJ
Nicholson
J E
JE