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Combination:Calculating Machine and Printer, 1897

How It Works

The Burroughs Registering Accountant was able to function largely because of a mechanism known as a pivoting sector. This pivoting sector was fundamental to the invention, crucial because it smoothed the process of carrying a 1. This mathematical procedure had previously posed a problem to other inventors of calculating machines. Click on the diagram to go to a step by step explanation and animation that will help demonstrate the process.