File:EB1911 - Screw - Fig. 2.png
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English: Fig. 2.
A, Simple train which rotates lead screw in opposite direction to mandrel, and makes slide-rest feed away from the headstock. B, Simple train with intermediate wheel on stud, which rotates lead screw in same direction as mandrel, making slide-rest feed towards the headstock. Intermediate on "stud" does not alter ratio. C, Typical compound train arranged for cutting a screw finer than that of the lead screw. D, Ditto for screw coarser than that of the lead screw. |
| Date | |
| Source | https://en.wikisource.org/wiki/Page%3AEB1911_-_Volume_24.djvu/499 |
| Author | Encyclopædia Britannica |
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This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
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