Mechanical Wheel with Articulated Linkages
A large spoked wheel driven by jointed arms and springs; the sheet bears no writing
This torn fragment carries only drawings: a large wheel set within a broad arc, linked to a system of jointed arms, cranks and a smaller toothed wheel or drum at the lower right. Zig-zag forms along the left suggest springs or ratchets acting on the mechanism. The sheet's own note records that it was invisible before restoration and bears no writing.
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Wheel driven by jointed arms and cranks
A large wheel within an arc is connected to a linkage of hinged arms and cranks running to a smaller toothed wheel or drum at the lower right, forming a motion-transmitting mechanism.
Spring or ratchet elements
Zig-zag forms drawn along the left side read as coiled springs or ratchet teeth acting on the moving parts of the mechanism.