Machines for raising water and drawing wire
Geared wheels, screw-conveyor, chain pumps and drawing benches; no text on the sheet
This densely worked sheet, which e-Leo records as bearing no writing, sets out a suite of mechanisms in brown ink: a hopper feeding an inclined conveyor, a great disc geared to a screw running inside a cylinder, a sprung lever bench, a star-hub device hung with conical weights, a tall U-tube siphon and pump, and a geared vertical column at the lower right. The Ambrosiana index files it under wire-drawing machinery; several elements also serve to lift and move water. No autograph text is present.
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Geared disc driving a screw-conveyor
At the top a large disc is geared to an inclined screw turning inside a cylinder, fed from a hopper by a bucket conveyor. It is a machine for continuously moving material along an incline.
Siphon and pump for water
At the centre a tall standpipe and U-bend siphon connect to a pump body, a scheme for raising and transferring water. A cylindrical vessel with an internal screw stands to its right.
Weighted star-hub and geared column
At the lower left a star-shaped hub carries a chain of conical weights; at the lower right a toothed vertical column meshes with gearing — mechanisms of the kind used for drawing wire and driving spindles.