:

Plate

ON THE

TEETH OF WHEELS,

DEMONSTRATING

THE BEST FORMS WHICH CAN BE GIVEN TO THEM FOR THE
PURPOSES OF MACHINERY;

SUCH AS

MILL-WORK AND CLOCK-WORK,

AND THE

ART OF FINDING THEIR NUMBERS.

TRANSLATED FROM THE FRENCH OF

M. CAMUS.

A NEW EDITION, CAREFULLY REVISED AND ENLARGED.

WITH

DETAILS OF THE PRESENT PRACTICE OF MILL-WRIGHTS,
ENGINE MAKERS, AND OTHER MECHANISTS,

BY

JOHN ISAAC HAWKINS,

CIVIL ENGINEER.

ILLUSTRATED BY EIGHTEEN PLATES.

LONDON:

M. TAYLOR, 1 WELLINGTON STREET, STRAND.

1842.

Fine 16384723

JUN 20 1917
TRANOS R.D T

LGARY

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