cncFireman
Hot Rolled
- Joined
- Jun 19, 2013
- Location
- Farmington Missouri
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on my S&M there's a tapered gib for "side to side", then shims to adjust the top gibsThis one goes back, way back as it has the square ways. Was there a way to take up wear on the ways like a gib?
john
Yes it sits vertical, somebody very creative installed a very unusual drive conversion on it.Rock, did the motor sit vertical? Or was that for the move that way?
the gib on mine is tapered vertically, wedge shaped, wider on the top than on the bottom. Three screws sets the depth of it and therefore the width of the vertical waysInteresting question perhaps, how old is the idea of tapered gibs for common production built machine tools? My Eriksen has close fitting non adjustable hold down gibs for up pressure and "grub screw" adjustable side load gibs for it's square ways. (Circa 1930 possibly, German)
No idea how old, the ring oiled motor is mounted with a few specialized castings, looks factory, so that would be my best tell for dating. lathes.co.uk used to have a page on them with an abbreviated timeline, mine looked to be between the 1920s and 50s, from the motor I'd guess the earlier end of that range.What circa is that S&M? My Havir has a similar gib but with setscrews horizontally to press it into the rams dovetail, and locating that there are three bolts that lock it down.
babbitt on the ring oiled motor bearingsDoes your Smith and Mills have taper roller bearings too? I guess that's not too much of a tip off or the date. If as you say it has ring oilers, does it have bronze or babbit bushings? I have a set of circa 1915 bearing blocks made entirely of cast iron with ring oilers and reservoir, so old yet still tight and very low friction. The point is that cast iron alone makes a great bearing if kept lubricated.
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