Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (170 total)

Chemical laboratory, 1938

Chemical laboratory, 1938

A test tube in a beaker, a flask, and a large bottle filled with liquid are sitting on a partially enclosed lab work area. Petri dishes and a rack are on the counter to the left.
Laboratory equipment, 1938

Laboratory equipment, 1938

This collection of scales includes a pendulum scale on the left and two Mullen testers in the center.
Piece of equipment and press, 1939

Piece of equipment and press, 1939

The two pieces of equipment on the left measure milliamperes and microamperes and are connected to another piece of equipment on the right.
Equipment parts, 1939

Equipment parts, 1939

Seven equipment parts are displayed.
Equipment parts, 1940

Equipment parts, 1940

A group of equipment parts are shown.
Research equipment, 1940

Research equipment, 1940

Several hoses from this machine are attached to pipes and valves.
Hydraulic press, 1940

Hydraulic press, 1940

This hydraulic press is manufactured by Charles F. Elmes Engineering Works, Chicago.
Hydraulic press, 1940

Hydraulic press, 1940

This is a Fred S. Carver Engineer hydraulic press.
Large research equipment,1940

Large research equipment,1940

On top of this piece of equipment are two openings with lids. The one on the left has a handle. The one on the right is raised via a pulley system. There are two pressure guages and a faucet to the right.
Corn machine, 1942

Corn machine, 1942

This close up of the front of the corn machine shows the rotating parts operated by pulleys.
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