Chapter 9, Item 87a
Lapidary mill parts
The parts of a Lapidaries Polishing Mill.
There belongs to it first a strong Plank Table Cover, four square, set upon a strong Frame with four feet.
Under the table is two round Wheels with Riggers on the out-edges, to keep the Wheel-string in, that turns cross from one Wheel to the other.
The Axis of the Left Hand Wheel comes through the Table, and is turned about with Lapidaries left hand, with a Winch fitted on the end of it.
The Right Hand Wheel, hath also an Axis which comes through the top of the Table, upon which again is fixed another round Wheel, or rather a round flat piece of Lead, fitted into a round cavity upon the superficies of the Table, where it turns, having the higher end of the Axle-tree set in a round Socket of Iron, which bends from it after the manner of a Gibbet, and so is seated firmly on the Table, that it waver or shake not in its running about.
About the Table Mill is fixed a square Frame, about an inch and half high, which is only to lay Stones to be ground therein, that thereby they may not be scattered abroad on the Table in time of working.
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