Framed mechanism and a perpetual-motion wheel
Rough red-chalk sketches of gearing and a self-turning wheel
Rough red-chalk sketches for mechanical devices. The lower figure is a wheel with curved arms carrying weights toward the rim, a classic overbalanced 'perpetual-motion' wheel meant to keep itself turning. Above is a summary sketch of a beam frame with a small wheel or pulley; no text was transcribed for this page.
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Overbalanced perpetual-motion wheel
A wheel whose curved arms carry weights toward its rim is drawn as a device intended to keep itself in continual rotation.
Framed mechanism with a small wheel
A hasty sketch shows a frame of beams supporting a small wheel or pulley, one of several rough device studies on the leaf.