Got the Yates knife grinder home
I was finally able to line up a truck and trailer to bring that grinder home from work. I had to get the loaderman to hoist it onto the trailer with a chain, but Dad and I were able to "walk" it off the back using a ramp board without too much difficulty.
I managed to coax the 066 into posing for the camera for a little perspective on size. It's wearing a 24/25" bar. It has a 24" wide table, and full-length travel, so I can grind up to a 24" long knife in theory. That would even cover the chipper knives from the mill! It would take quite a while to grind a set of those on one of these though; the automatic bed grinder at work does them in a flash and auto-balances them to boot.
Well, here's a sign of its true age. Not too many tools are running babbitt bearings anymore! The shaft is fairly scored from junk getting into the bearing grease, but the babbitt is still tight as a drum. I don't know how to re-pour them, but I do remember reading about it once. I think it might have been in one of my old (1970s) Fine Woodworking magazines. I suppose it would be possible to convert it to ball bearings, but you would have to build bearing mounts that bolt down to the existing bolt holes, and I don't know how it could be done without raising the arbor at least an inch or more. And it wouldn't look stock anymore either. I don't have a problem with the babbitt though; at least they're infinitely serviceable! I can get as much of the stuff as I'd ever need from work too.
After some lube and a bit of elbow grease, I managed to get pretty much everything freed up and moving. Both cross-slide mechanisms on the table are butter smooth, though rusted. The wheel for the table's vertical adjustment is a bit anemic at ~7" dia. though; there's no way I can get enough leverage on the knob to move the table with one hand. A nice 10"+ wheel would be nice; I'll keep my eyes open for something I can use. There are a few at work from the old molder/planer, though I don't think they're that big.
The stack of discs in the last pic came out of the dropoff bin at the scrap yard. The bevel stone on the main arbor also came from there; I don't know what they're worth but they're not cheap. It's identical to the ones we use to grind the big Chip-N-Saw square-base knives at the mill. Some of the discs are for a slightly larger arbor, so I guess I'll have to get a few bushings made up.
I don't know where the grinder originally came from, but there were remnants of what look like Mountain (not Western) Hemlock cones stuffed in the dovetail slide mechanism. That would be nowhere very close to here.