Calorimeters Aluminium

For illustrating expansion by heating and contraction by cooling.

Comprising a mild steel bar 110 x 10 mm. length x diameter, on rod with wood handle, overall length approx. 280 mm. with metal cast gauge, sliding fit over ends of bar and with hole 10 mm. bore in one Arm.

Represents internal structure and operating principles of an air-cooled two stroke engine
All parts in aluminium alloy. Ignition is shown by means of a mainature bulb. Carburetter and fuel supply also sectioned. Mounted on base, with printed diagram showing working.