MS-196 PVG LINEAR EXPANSION APPARATUS, MICROMETER FORM

To measure the coefficient of expansion of various metal rods.
Consist of a metal jacket (steam or water) mounted on a metal
frame with micrometer scale at one end for accurate measurement
of expansion. Expansion rods are easily replaced by simply sliding a
rod into the heated jack, which automatically pushes out the other
metal rod. Length x Width x height 710 x 105 x 125 mm.
Supplied complete with four expansion rods of Aluminium, Brass,
Copper and Steel.