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  1. This is a straight C, and has Lead Screw Reverse...

    This is a straight C, and has Lead Screw Reverse on apron. I would guess it slightly predates the CY.
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    Can email the (I suppose) late twenties catalog...

    Can email the (I suppose) late twenties catalog from Jim Bailey's collection - its a bit less than 8Mb

    I titled it "about 1932" but its obviously older since the 13 and 15 have 2 5/8-5 spindle...
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    The last plain round ones I bought from Hardinge...

    The last plain round ones I bought from Hardinge about 20 years back were $56.00:D



    Your CA neighbors at Aircraft Spruce sold me 2 1/8 OD X .063 wall 4130 seamless tubing for welding a threaded...
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    P&W Model B (and likely earlier cone heads) had...

    P&W Model B (and likely earlier cone heads) had such. Really great "B" brochure Greg Menke Hosts for me
    ...
  5. I'll try to scan the oiling page in the the 1913...

    I'll try to scan the oiling page in the the 1913 catalog - just a description. If successful, I'll edit it in here. By the time my 1919 #4 High Power Vertical (used to have) was made, they had an...
  6. I'll crawl up in the barn and see what's there ...

    I'll crawl up in the barn and see what's there

    On Edit

    4 ea NOS in BLACK plastiic with steel 3/8-24 insert - which shows some rust. Probably need to run in a tap to clean them up

    These are...
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    I'd probably see if it was possible to get some...

    I'd probably see if it was possible to get some of this - the hardness is on up there

    AR500 Alloy Plates - 500F Steel Plate - AR500 Armor | Leeco Steel, LLC
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    I would probably see how I liked a set made out...

    I would probably see how I liked a set made out of AR plate - no heat treat
  9. And size needed as to threads?

    And size needed as to threads?
  10. Say thread requirement for the KNOBS and I will...

    Say thread requirement for the KNOBS and I will see what is in the collection - which are all black and plastic - with metallic inserts for threads
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    All that is needed is a link:D Monarch lathe -...

    All that is needed is a link:D

    Monarch lathe - tools - by owner - sale
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    Maybe 3 1/2 - 4 - such as on late twenties 17 and...

    Maybe 3 1/2 - 4 - such as on late twenties 17 and 19 " Heavy Duty. This goes back to include the 1911 catalog - but on the 19 and 21"
  13. You are entirely welcome.

    You are entirely welcome.
  14. 127/120 (1.0583333 to 1 compound) works good with...

    127/120 (1.0583333 to 1 compound) works good with such as

    48 TPI = 0.5mm
    32 TPI = 0.75mm
    24 TPI = 1mm
    16 TPI = 1.5mm
    12 TPI = 2mm
    8 TPI = 3mm
    6 TPI = 4mm
    4 TPI = 6mm
  15. Does Running a Regal have any input on this...

    Does Running a Regal have any input on this subject?

    R. K. LeBlond Machine Tool Co. - Publication Reprints | VintageMachinery.org
  16. Donor mill or make them on the crank. Example...

    Donor mill or make them on the crank. Example thumbnails
  17. No way. "Off a bit" sure will not be kind to any...

    No way. "Off a bit" sure will not be kind to any gear that has to mate with the the "off a bit" gear.

    Different pitch altogether? - for sure - if gears that have to work with each other share...
  18. Actually you are "slowing down" the screw. the...

    Actually you are "slowing down" the screw. the stud gear will turn 1.27 times faster than the screw gear.(assuming that ratio compound - and assuming stud and screw gears are the same tooth count)
    ...
  19. A 127 and 100 STACKED would be a 1.27 to 1...

    A 127 and 100 STACKED would be a 1.27 to 1 compound. The other gears, such as "stud" (upper) and "screw" (lower) have to accommodate this STACKED compound gear. Lathe makers generally provide...
  20. A simple lever to change direction gets the lead...

    A simple lever to change direction gets the lead screw out of "time" with the spindle rotation

    Lead screw reverse is DESIGNED to never "get out of time" - as explained in Post # 14
  21. Thread: Dating lathe

    by johnoder
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    Serial number right end on top in between two...

    Serial number right end on top in between two front ways is the thing to look at and post.

    War Production Board tag strongly suggests early 1940s - if I recall correctly, the WPB went into...
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    Thumbnail gives my ideas of MAYBE:D

    Thumbnail gives my ideas of MAYBE:D
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    One of Lindsay's larger reprints was Laying Out...

    One of Lindsay's larger reprints was Laying Out for Boiler Makers and Plate Fabricators - by George M. Davies - devotes considerable space to this subject
  24. (I'll assume you refer to a lead screw reverse...

    (I'll assume you refer to a lead screw reverse system - as used on many high end tool room lathes)

    Thumbnail is the reversing bevels UNDER the Hendey head stock. The shuttle with the groove for a...
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    Indeed. Tag in Post #1 states such

    Indeed. Tag in Post #1 states such
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