Oblique beam held in place by two weights, one via a pulley
A slanting beam kept in position by hanging loads, one acting through a pulley on the frame
The upper-right sketch shows an oblique beam resting on a frame and held in its position by two hanging weights, one of them acting through a small pulley mounted on the structure. No running text was transcribed for this page; the faint marks below the ruled line are show-through from the facing leaf rather than writing on this sheet.
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An oblique beam balanced by two hanging weights
A slanting beam is held in equilibrium on a frame by two suspended weights; one weight pulls directly while the other acts through a pulley fixed to the structure, so that the two loads together fix the beam's inclined position.