Brinton, Willard Cope, 1880- · New York, The Engineering magazine company · leaf 340
gh the machine the totals can be read off from the counting dials and written down by the operator. Then the machine is ready for some other set of cards. Machines are built with different numbers of counting heads to suit the complexity of the data in any kind of business. By having several… … transferred from the Courlesy of the Tabulating Machine Company Fig. 230. Hollerith Tabulating Machine for Totalling original records to the Data Contained on Punched Cards the cards by very The machine illustrated has four counters, permitting the simulta- neous taking off of the data contained…
Graphic methods · Statistics
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