More regarding the 1962 Brodac Sytem - an explanation of how it looked. The Thermography machine top lowered onto the cards. Once they were firmly held in place in special grooves, the worker pushed the two buttons, the thermography machine top lowered, the light flashed to make the record on the paper.
I wanted to include a tiny slide which replicates a news photo of the Brodac Machine in the article from the News Tribune, February 25, 1962 - I have drawn in the machine to illustrate how the machine worked - the special paper reacted with the heat to copy the information from the book title card, the transaction card, which had holes punched in it, and the borrower's library card. The roll of paper flowed toward the worker, who needed to watch each impression. If the impression was too faint to read, the worker pushed the two buttons once again and another impression was made.
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