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Maker(s):Guatelli, Dr. Roberto A.; da Vinci, Leonardo, after
Culture:Italian (1904-1993)
Date Made:circa 1968
Type:Working Model
Materials:Wood, metal
Measurements:Overall: 48 in x 13 in x 10 in; 121.9 cm x 33 cm x 25.4 cm
Accession Number:  UM 1970.304
Credit Line:Gift of the International Business Machine Corporation (IBM)
Museum Collection:  University Museum of Contemporary Art at UMASS Amherst

Comparable to a modern hand jack. Hand cranked with a lock at each stage of elevation. The Madrid Codex also illustrates a screw jack.
industry; labor; machine; mathematical; science; technology; tool; work

Label Text:
This model Jack is very similar to the modern hand jack. A series of hand-cranked gears raise the sturdy rack which has been designed with an attached lifting foot. The gear application is so ingenious it cr[e]ates a secure lock at each desired elevation. - Dr. Roberto A. Guatelli

industries; labor; machines; mathematics; science; technology; tools; labor

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