Lodge and Shipley Thread chat

[Longshot379]

Does anyone have a thread chart like this or know where I can get one or copy one? It is from a 1908 Lodge and Shipley lathe.

 

[johnoder]

Might help to say size of lathe - then I can post up the correct page listing threads - which will help you decipher your plate ON EDIT - I see the tag stamping lower edge suggests 18 and 20" lathe - see pdf page 41, 42, 43 and 44 in the 1905 scan - 2 to 32 threads and 5 to 80 feeds

Scans from 1910 on the 14"

Your lathe may not be "Patent" head but the thread and feed chart would not be any different

ON EDIT - add sketch I made years ago - may or may not suit your situation. I did not fill in all the feeds, but the one column shows their relationship to the various threads. To convert these antique ways to say feeds, just take their reciprocal. So an 80 feed is .0125" IPR in modern terms

There is also the 1905 scan if you want to look in that

http://pounceatron.dreamhosters.com/docs/lodge/lodgeshipley-catalog-R-1905.pdf

 

[enginebill]

If you send measurements and the missing numbers, Rob Gill can make you a new tag, [email protected] . Expect to pay around $150 for the tag.

 

[johnoder]

Made you something to help with deciphering

Note "KNOB" settings for right hand column jump over 3 - and start with 1 rather than 2

Feeds are easy - 2.5 times threads, so I left them off

 

[johnoder]

Related. This is a little info easily over looked in 1905. Should help to make sense of that left end