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  1. Sounds like they are all 16DP since they run with...

    Sounds like they are all 16DP since they run with each other - so now you know about that fact as far as gear hunting

    Example is the 53

    We add TWO to that, making 55

    55 divided by 3.42 =...
  2. Tell us which you have we are interested in...

    Tell us which you have

    we are interested in Diametral Pitch

    14 DP will be 2.429 O.D. on the 32
    16 DP will be 2.125 O.D. " " "
    18 DP will be 1.889 O.D. " " "
  3. And a way to calculate that is 110/32 X 106/53 =...

    And a way to calculate that is 110/32 X 106/53 = 6.875 to 1

    lead screw pitch of 8 (do not know if your 11 has this) of .125" / 6.875 = .0182" for a feed rate

    You can change this to about .009"...
  4. You have a compound there, just not enough -...

    You have a compound there, just not enough - maybe 2 to 1. Smaller and larger compound gears would make quite a difference, but may require another idler to reach to the screw gear.

    A good way to...
  5. It does look that way - and it also has a Model X...

    It does look that way - and it also has a Model X looking head stock - making it a hybrid of old and new

    Ordinarily, a "G" will have head stock levers like so

    290098

    The "G" was 12 speeds,...
  6. Sort of a Model G No feed rod is dead...

    Sort of a Model G

    No feed rod is dead giveaway.

    From 1893 to at least post WW2 all the really heavy duty L&S used nothing but the lead screw - with its full length key way - driving some almost...
  7. Replies
    3
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    238

    Amazing what the the manual does not say about...

    Amazing what the the manual does not say about converting to metric

    No mention of tooth counts other than 120 which you had as a normal idler - and the changes to the input gear of the QC

    No...
  8. Replies
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    921

    Wheel right? Ancient Norton book says 37C 30...

    Wheel right?

    Ancient Norton book says 37C 30 grit K grade - that there is a silicon carbide wheel
  9. Replies
    6
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    392

    Make yourself a an expanding mandrel on the end...

    Make yourself a an expanding mandrel on the end of a piece of stock in the lathe - have it fit the bore, and have a shoulder for the back face of the gear to sit against. Hack saw lots after tapping...
  10. Replies
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    More on back gears. Same 16" with the chart...

    More on back gears. Same 16" with the chart above.

    Here is the back - with big lever in that attitude, the back gears are disengaged - meaning the spindle is "running open belt" in the three...
  11. Thread: trepan tool?

    by johnoder
    Replies
    8
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    845

    Another related thread - some repetition as to...

    Another related thread - some repetition as to images

    ON TOPIC Meaning of Trepanning and Trepanning Tool

    ph
  12. Just so Then the RT is just a "mover", not...

    Just so

    Then the RT is just a "mover", not involved in radius making
  13. Replies
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    835

    Here are some of the levers. I'll suppose the...

    Here are some of the levers. I'll suppose the one I left out to right of QC selects between feed rod or lead screw. I'll add that the feed reverse has a NEUTRAL that you park it in when cutting...
  14. Thread: trepan tool?

    by johnoder
    Replies
    8
    Views
    845

    Related thread ...

    Related thread

    https://www.practicalmachinist.com/vb/cincinnati-milacron-kearney-trecker-vn-usa-heavy-iron/heavy-iron-being-built-houston-1975-a-286243/?highlight=Drilco


    Post #13 has a link...
  15. 4 to 5 floor space length mid thirties vintage 7...

    4 to 5 floor space length mid thirties vintage 7 feet for #4 and 8 foot 7 1/2" for #5 - which seems a bunch
  16. Replies
    12
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    971

    Here is that odd page from February 1926 showing...

    Here is that odd page from February 1926 showing 1900ish apron parts

    289793
  17. Replies
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    1,189

    You can see the same size / type material and...

    You can see the same size / type material and what the effect on strength is at differing tempering temperatures in this mass effect data

    289700
  18. Replies
    10
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    452

    Related thread truing a collet chuck on an L00...

    Related thread

    truing a collet chuck on an L00 spindle
  19. Replies
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    941

    Yep, maybe the Great War - August 1914 to...

    Yep, maybe the Great War - August 1914 to November 1918.
  20. Replies
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    428

    "L" type threads just pull it up on the taper -...

    "L" type threads just pull it up on the taper - and the NAME says it all - "L" is for LONG TAPER

    You have to consider the back plate angle is not exactly like the spindle nose angle. Get some...
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    ATW did not publish weights in this 100 plus year...

    ATW did not publish weights in this 100 plus year old pub - thanks to Greg Menke for hosting this

    http://pounceatron.dreamhosters.com/docs/atw/atw-efficiency-bulletin-1919-si.pdf

    good luck - it...
  22. See the flats on the hexagon? Unscrew that...

    See the flats on the hexagon?

    Unscrew that bushing

    But you may want to see if there are any set screws preventing the unscrewing - surely they were on the ball enough to not require the saddle...
  23. Thread: trepan tool?

    by johnoder
    Replies
    8
    Views
    845

    Probably not DIY Three facet cutting tool and...

    Probably not DIY

    Three facet cutting tool and carbide wear pads for "head"

    289548

    There is way more to it though - like reliably evacuating fountain of chips coming off that tool. This is...
  24. Replies
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    Posting photos ...

    Posting photos

    https://www.practicalmachinist.com/vb/south-bend-lathes/posting-pictures-south-bend-forum-372508/?highlight=photos

    Its competitor (belt drive but geared head) - made in the same...
  25. Thread: Pictures

    by johnoder
    Replies
    1
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    217

    Works well ...

    Works well

    https://www.practicalmachinist.com/vb/south-bend-lathes/posting-pictures-south-bend-forum-372508/?highlight=photos
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