AMERICAN MACHINISTS' HANDBOOK

AND

DICTIONARY OF SHOP TERMS

A REFERENCE BOOK OF MACHINE SHOP AND
DRAWING ROOM DATA, METHODS AND
DEFINITIONS

BY

FRED H. COLVIN, A.S.M.E.

Associate editor of the American Machinist, Author of “Machine
Shop Arithmetic,” “Machine Shop Calculations,”
"American Machinists' Grinding Book,"
"The Hill Kink Books," etc., etc.

AND

FRANK A. STANLEY, A.S.M.E.

Associate editor of the American Machinist, Author of "Accurate
Tool Work," "Aulomatic Screw Machines," American
Machinists' Grinding Book," "The Hill
Kink Books," etc.

SECOND EDITION—THOROUGHLY REVISED AND ENLARGED

FIRST IMPRESSION

TOTAL ISSUE, 39,000

MCGRAW-HILL BOOK COMPANY, INC.
239 WEST 39TH STREET, NEW YORK

6 BOUVERIE STREET, LONDON, E.C.

Copyright, 1914, BY THE MCGRAW HILL BOOK COMPANY, INC
Copyright, 1908, BY THE HILL PUBLISHING COMPANY

All rights reserved

FIRST EDITION

First Printing, October, 1908
Second Printing, February, 1909
Third Printing, May, 1909
Fourth Printing, November, 1909
Fifth Printing, April, 1910
Sixth Printing, October, 1910
Seventh Printing, March, 1911
Eighth Printing, November, 1911
Ninth Printing, May, 1912
Tenth Printing, December, 1912
Eleventh Printing, April, 1913

Total Issue, 36,000

SECOND EDITION

First Printing, July, 1914

Total Issue, 3000

200414

PREFACE TO SECOND EDITION

EVER since the first printing of this book, the authors have been studying ways and means of making it better, and the addition of one hundred and sixty pages by no means gives an adequate idea of the extent to which it has been revised.

Each section has been carefully studied to make it cover the changed and changing conditions of shop and drawing-room work in the hope of making it even more valuable than before.

Many of the changes have been due to suggestions made by users of the Handbook, and we shall appreciate a continuance of their interest and assistance in pointing out possibilities of improvement.

THE AUTHORS.