[SEL] Thread question

[Peter Lowe]

Hi Ron
The 48A is probably a Northern Electric or Western Electric Magneto.
How many magnets does it have Ron, is it a 5 bar?.
Do you have thread guages, every good engine man has them !!!!!
I have sent an email to a telephone group for you.

Regards
Peter, Oz



> 
>> Hi all.
>> I am trying to make an old telephone generator/magneto function.  The
>> problem is the threads that attach the crank handle.  The outside
>> diameter of the threads is .267", and the threads measure 24 per inch.
>> What in the world is this?
>> The only markings on it are the number 48A and "PATD in USA July 1894.
>> Thanks.
>>
>> Ron Haskell