This iron and aluminum mechanism was built by Ford Instrument Company for use on Dummy Director Mark I, an instrument built for testing purposes. It has an iron box with a shaft carrying a gear and three metal rings that emerge from one side. And a shaft with two rings emerges from another side. A mark on one of the rings under the gear reads: 112-099. A piece of decaying tape on another side reads: #36 1/2” (/) INTEGRATOR.
References:
A.B. Clymer, "The Mechanical Analog Computers of Hannibal Ford and William Newell," Annals of the History of Computing, 15, #2, 1993, 19-34.
Accession file.
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