MACHINERY’S REFERENCE SERIES
EACH NUMBER IS ONE UNIT IN A COMPLETE LIBRARY OF
MACHINE DESIGN AND SHOP PRACTICE REVISED AND
REPUBLISHED FROM MACHINERY
NUMBER 135
PRECISION LOCATING AND
DIVIDING METHODS
CONTENTS
| Precision Locating Methods | 3 |
| Accurate Dividing and Spacing Methods | 21 |
| Locating Work for Boring on Milling Machine | 32 |
Copyright, 1914, The Industrial Press,
Publishers of Machinery,
140-148 Lafayette Street, New York City
| Other books in this series dealing with |
| the subjects of Toolmaking and kindred |
| topics are as follows: |
| No. 31—Thread Tools and Gages |
| No. 64—Gage Making and Lapping |
| No. 107—Drop Forging Die Sinking |
| No. 130—Gaging Tools and Methods |
Machinery
The Leading
Mechanical Journal
Machine Design
Construction
Shop Practice
THE INDUSTRIAL PRESS
140-148 Lafayette St. New York City
51-52 Chancery Lane, London
[Pg 3]
CHAPTER I
PRECISION LOCATING METHODS
The degree of accuracy that is necessary in the construction ofcertain classes of machinery and tools, has made it necessary fortoolmakers and machinists to employ various methods and appliancesfor locating holes or finished surfaces to given dimensions andwithin the prescribed limits of accuracy. In this treatise, variousapproved methods of locating work, such as are used more particularlyin tool-rooms, are described and illustrated. These are not given, inevery case, as being the best possible method under all conditions,because, as every mechanical man knows, the best way may be dependentupon the element of accuracy with little regard for the time requiredto do the work, or this order may be reversed; therefore, one method isseldom, if ever, the best under all circumstances, and it is necessaryfor the workman to consider the conditions in each case and then beguided by his judgment and experience in determining just how the workshould be done.
Button Method of Accurately
Locating Work
Among the different methods employed by toolmakers for accuratelylocating work such as jigs, etc., on t