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BTM vertical sorter, 1911.
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Titel BTM vertical sorter, 1911.
Caption The function of the sorter was to arrange punched cards in the order required for the tabulator. The cards were fed one at a time into a mechanism which sensed the position of a hole in a particular column. As the card then moved along the machine, the correct shutter would open directing the card into a receiver box below. Electronic systems of tabulation were cheaper and more efficient than manual systems and were originally used for processing census information. This vertical sorter was made by the British Tabulating Machine Company., 6997141
Aufnahmedatum 01.01.2009
Bildnachweis Science & Society / FOTOFINDER.COM
Bildname 10319124
Bildgröße 2811px x 3504px, 23,80 cm x 29,70 cm (300 dpi)
Model Release Kein Model Release vorhanden
Property Release Nicht spezifiziert
Land United Kingdom
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Fotofinder.com Bildnummer 6997141 / DE4515FF07F33175
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