Wine press, water clock and a flow vessel
A press for iron-bound casks, a clepsydra scheme and a regulated vessel a
Three devices, sketched upside down, share the sheet. At the top a beamed press is meant for squeezing wine or oil in an iron-bound cask, drawn as a hatched screw-and-frame mechanism. A second figure is a demonstrative scheme for a water clock. At the foot an open box is the vessel a, whose note on water regulation observes that when the feed-spout pours less, the vessel still discharges a barrel an hour and holds no more.
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Press for wine or oil
The upper mechanism is a press for squeezing wine or oil held in an iron-bound cask. The long beam and the hatched screw-and-frame body show how pressure would be brought down onto the barrel.
Water clock
A second figure is given as a demonstrative scheme for a water clock, a clepsydra that measures time by the steady passage of water. It is drawn as a small explanatory diagram rather than a finished mechanism.
Regulating the flow of vessel a
The open box at the foot is the vessel a, treated as a study in water regulation. The note remarks that when the spout filling it pours less, the vessel discharges a barrel an hour and holds no more, tying the outflow to the rate of supply.