SPECIALLY DESIGNED ELECTRIC FURNACE

CD1963014 E&MP19.014

Electric Furnaces

January 1938

Close up of specially designed electric furnace used by research scientists of the United States Steel Corporation in creep test on steel specimens.

A unique feature of this furnace is that creep test readings may be made by a single microscope, as a result of placing reference marks on tiny platinum cubes embedded in fingers attached to either end of the specimen in such a manner that both come within the vision range of the microscope.

In addition, pinions alongside of the furnace make it possible to use a portable microscope.

Heretofore, two microscopes, one focused on either end of a specimen, were the usual practice.

An electrical outlet is also available at each furnace for plugging in the microscope light. 

Original Caption by Science Service
^©United States Steel Corporation