PLANT'S GEOMETRIC CHUCK.

This chuck is put in motion by an entirely new method; none of its

parts being attached to the lathe head, the whole can be put in motion

or released in an instant, and without stopping the lathe.

The whole of its work is executed by the continuous motion of the

lathe, so that, when the chuck is adjusted, any figure (no matter how

complex) may be begun and completed without once stopping the lathe.

By the different arrangements and adjustments of the chuck and slide

rest, an infinite variety of the most beautiful geometrical figures

may be produced; and some of them of so strange and fortuitous a

nature as to bid defiance to any imitation.

_Description of the Drawings._

The Lathe & Its Uses Or, Instruction in the Art of Turning Wood and Metal. Including a Description of the Most Modern Appliances for the Ornamentation of Plane and Curved Surfaces. With an Appendix, in Which is Described an Entirely Novel Form of Lathe for Eccentric and Rose Engine Turning; a Lathe and Planing Machine Combined; and Other Valuable Matter Relating to the Art. · 第 44 / 108 题