Machine 57V:

A comparable lever mechanism is utilized akin to that seen in folio 57R. However, in this case, there is just a single substantial lever, supplemented by a secondary one. This arrangement, though, restricts the lowering of the column. At a certain minimum angle the secondary lever collides with the column itself, while simultaneously, the left connection in the lever disengages from the lever. Moreover, the ring -like connection to the column operates similarly to the one depicted in folio 8R, which hampers precise vertical positioning. Yet, this can be rectified by exerting pressure on the bottom of the shaft to align it vertically.

Identifier

BM_Opusculum 57v

Title

Machine 57V

Creator

Francesco di Giorgio

Date Created

ca. 1477

Publisher

The British Museum

Machine Parts

Lifting/pulling machines

Machine typology ( Ghent University student's classifications)

Column raising machinery

Basic parts (Ghent University student's classifications)

gear

Material

Wood; rope

Powered by

Human

Operating environment

On land

Contributor

Gregor Sobolev

Drawing

Mediator

Elizabeth Merrill, Ruben Verstraeten, Willem Bekers

Has Part

lever; pulley; screw