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Need threads and feeds plate picture

allsupj

Plastic
Joined
Mar 2, 2018
I need a good photo of the threads and feeds plate for a 1952 12.5 inch cintilathe. It should be P.N. 600155. Can anybody post a good high resolution photo for me, please
 
You can blow this up to whatever magnification you like, but it won't be high resolution

Its for the 15 and 18 - with 1 1/2 TPI upper right. Yours will be 3 upper right and 184 lower left

Relationship thread lead to feed on longitudinal constant at 2.75:1 - at 184 TPI position it is .0019" and at the 3 TPI position it is .1212"

Pdf page 4 is this link

http://vintagemachinery.org/pubs/177/20863.pdf
 
Last edited:
Here's a screencap from a different Cintilathe brochure, showing the speeds and feeds tables for English and metric QCGBs on the 10" and 12-1/2" machines. If this is too small to read, PM me your email, and I'll send the image file directly.

Screen Shot 2019-07-24 at 6.12.25 AM.jpg
 








 
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