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Discussion Forum

Lathe Spindle TAper

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Nick

05-14-2002 05:27:54




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I recently purchased, and am restoring, a turn-of-the-century metal lathe which was manufactured by Prentice Bros. Worchester Mass. It has a taper in the headstock and tailstock but i am not shure what size the taper is. It appears to be the same TAPER as a morse #2, but the socket is about 1.25" to deep. Is there any other kind of taper that this could be? Please help. Thanks.
-Nick Stanley

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scott

11-06-2002 18:51:27




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 Re: Lathe Spindle TAper in reply to Nick, 05-14-2002 05:27:54  
Hi nick i recietly purshased a lathe manufactured by prentice bros. but it is in peaces. i have no guide to put it back together. i am having a hard time figuring out how the power feed gears go together both at the headstock and on the apron if you can help me or send me pictures of your lathe it would be of great assistance. thank you scott [email protected]

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Al English

05-14-2002 16:06:56




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 Re: Lathe Spindle TAper in reply to Nick, 05-14-2002 05:27:54  
Hi Nick,

I have a 1920's "Machinery's Handbook". If you can get some accurate measurements of the taper I"ll look it up for you...Al English



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Doug in Il.

05-14-2002 06:51:18




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 Re: Lathe Spindle TAper in reply to Nick, 05-14-2002 05:27:54  
It is probably a Jarno taper. If you can located an older Machinist's Handbook for a reference, you can probably do some measuring and figure out what taper you have.



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MikeEnglebrecht

05-15-2002 00:18:49




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 Re: Re: Lathe Spindle TAper in reply to Doug in Il., 05-14-2002 06:51:18  
I also think it might be a Jarno. I am pretty sure it pre-dates Morse



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Nick

05-15-2002 08:19:46




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 Re: Re: Re: Lathe Spindle TAper in reply to MikeEnglebrecht, 05-15-2002 00:18:49  
I have a Mechanical engineers handbook.It talksabout several different tapers, none of which have the exact large end size for the taper. It appears to be the same taper per foot as a Morse but a morse #2 shank sticks way down in the barrel(useless for a dead center!)and a #3 doesn't fit at all.



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MikeEnglebrecht

05-17-2002 12:07:01




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 Re: Re: Re: Re: Lathe Spindle TAper in reply to Nick, 05-15-2002 08:19:46  
Get me as many mesurements as you can, I am in the tool holder and machinery business and have a lot of sources to ask, even some real experts on the stuff. Frank Brian of CSP regrinds every taper you can think of and I will ask him for you.
Mike
Email [email protected]



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