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THE

PRACTICAL

ENGINEER'S POCKET GUIDE:

CONTAINING

A CONCISE TREATISE

ON THE NATURE AND APPLICATION OF MECHANICAL
FORCES; ACTION OF GRAVITY; THE ELEMENTS OF
MACHINERY; RULES AND TABLES FOR CALCU-
LATING THE WORKING EFFECTS OF MACHI-

NERY; OF THE STRENGTH, RESISTANCE,
AND PRESSURE OF MATERIALS; WITH
TABLES OF THE WEIGHT AND CO-

HESIVE STRENGTH OF IRON

AND OTHER METALS.

COMPILED AND ARRANGED

BY THOMAS KELT,

OF THE "GLOUCESTER CITY MACHINE COMPANY," N. J.

Fourth Edition.

BOSTON:

PUBLISHED BY SAXTON AND KELT,

No. 133 WASHINGTON STREET.

1847.

TJ

151 K27

1247

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