Wooden water conduits and pump pipes
Building pump barrels and water pipes from jointed lengths of timber
The page sets out various ways of making the barrels of pumps for bailing or drawing water, and conduits made of wood. The timbers are cut to the length wanted for the pump, or, if none is long enough, made in pieces and pegged together every half-braccio as shown in the two side figures. Drawings show a tall pump cylinder marked 100 driven by a shaft ending in a bladed impeller, several long pipe-lengths in section with their joints, and two bearing-block views; the numbers 100 and 80 label the figures.
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Pump barrels for drawing water
These are various ways of making the barrels of the pumps for drawing water. One takes timbers of the length wanted for the pump; and where none is long enough, they are made in pieces and pegged together every half-braccio, as the two side figures show.
Water conduits made of timber
A caption labels the group as ways of water conduits made of timber. The long sectioned members at right show how successive lengths of pipe are scarfed and joined to run water.
Pump cylinder with bladed impeller
A tall cylinder marked 100 stands over a shaft ending in a many-bladed impeller, with a small weight or token hung at its side. Two bearing-block views appear at the upper right.