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[AC] Mead Art Museum at Amherst College; [HC] Hampshire College Art Gallery;
[HD] Historic Deerfield; [MH] Mount Holyoke College Art Museum; [MH SK] The Joseph Allen Skinner Museum at Mount Holyoke College; [SC] Smith College Museum of Art; [UM] University Museum of Contemporary Art at UMASS Amherst


Maker(s):Guatelli, Dr. Roberto A.; da Vinci, Leonardo, after
Culture:Italian (1904-1993)
Title:Controlled Clock Mechanism
Date Made:ca. 1968
Type:Working Model
Materials:Wood, metal, paint
Measurements:Overall: 28 in x 24 in x 18 in; 71.1 cm x 61 cm x 45.7 cm
Accession Number:  UM 1970.310
Credit Line:Gift of the International Business Machine Corporation (IBM)

Designed for an astronomical or calendar clock. Impractical because of the force required to balance the weighted timing wheels and the controlling friction heads.
industry; labor; machine; mathematical; science; technology; tool; work

Label Text:
This model represents Leonardo's attempt to design an astronomical -- or perhaps a calendar -- Clock. He apparently planned to set the main timing wheels in fixed ratio to each other, and to rotate them by balance weights and control them by friction heads. The idea was good, but the force needed to balance the weighted timing wheels and the friction heads was so great that the clock bacame impractical. - Dr. Roberto A. Guatelli

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

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