Lathes Page: 78
94 p: ill, .17 cm. Enclosed at end: Change 1 (3 pages) Contents: I. Nomenclature and maintenance -- II. Cutting tools, speeds, and lubricants -- III. Application of measuring instruments -- IV. Holding work -- V. General lathe operations -- VI. Drilling, reaming, and boring -- VII. Threads and threading -- VIII. Types of fits -- IX. Gear blank calculationsView a full description of this book.
AIR CORPS
0 Correct setting of tool 1o work.
SProlperly ground tool hlit.
FIGcRE 71.-Square thread tool.
b. Acme threads are cut with the compound rest set parallel to the
axis of the machine. The general cutting procedure is the same as
for square threads and the tool is set as illustrated in figure 73 @.
c. The depth of the Acme thread is equal to one-half the pitch
plus 0.01 inch and is measured as shown in figure 73 @, using a single
wire or drill of the proper size.
78
TM 1-420
46
Upcoming Pages
Here’s what’s next.
81 of 108
82 of 108
83 of 108
84 of 108
Search Inside
This book can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page .
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Book.
United States. Army. Air Corps. Lathes, book, November 29, 1940; Washington, D.C.. (https://digital.library.unt.edu/ark:/67531/metadc96655/m1/80/ocr/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.