The IBM Type 016 Motor-Driven Electric Duplicating Key Punch, introduced in 1929*, the kind used in Columbia's Statistical and Astronomical Laboratories, and later in Watson Scientific Laboratory. This was IBM's first punch with automatic feeding and ejecting mechanisms; it was marketed until 1960. The punching is done magnetically, and information from one card can be transferred automatically to another by a duplicator. The keyboard contains 12 punching keys, one for each row on the card. There are also space and eject keys. A master (program) card can be used to control automatic tabbing and duplication of fields. A skilled operator could punch 100-200 cards per hour on this model. Herb Grosch recalls, "You put a stack of blank cards in the feed [right], a single card, part of which you wanted to duplicate ('master card'), in the to-and-fro rack, and clipped a skip bar to the front of the carriage (p.82). A notch said skip, a deeper notch said copy."
|*||No, I can't explain how an article published in 1928 can show a machine that was introduced in 1929!|
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