LINEAR EXPANSION APPARATUS

The elongation of rod is measured by a micrometer screw. The brass tube is 50 cms x 2.5 cm C.P. With inlet and outlet tubes for steam and opening for thermometer and reading to 1º x 110º.C. The binding posts are provided on the supports for connecting a bell, buzzer of galvanometer for indicating the exact point of contact of the screw. Provided with three rods of brass, Iron and aluminium without bell and battery.