Photo Index - Mummert-Dixon Co. - # 475 oilstone grinder, serial # 1585

Machinery Photo Index

Manufactured/Badged by:
Mummert-Dixon Co.
Hanover, PA

Machine Specifications
Machine Class:	Wood Working Machinery
Machine Type:	Grinder, Bench
Machine Size:	8" wheels
Submitted By:	William Thomas

Machine Specifications
Description/Model:	# 475 oilstone grinder, serial # 1585
Date of Manufacturer:	1968
Serial Number:
Last Updated	4/27/2005 6:06:37 PM

Comments:

I have been looking for a Mummert Dixon grinder for a while and finally found one at a surplus dealer in Ohio. This grinder appears to have spent its entire life at the Gleason Works in Rochester, NY. The Gleason Works is the original manufacturer of gear cutting machinery. It has a plate rivetted to the pedestal with the number 9075, and taped to the pedestal was a lubrication chart with the same number printed on it and the Gleason Works name as well. The number plate is also stamped: installed 5-29-68.

The coarse oilstone is worn down to seven inches in diameter, and the fine wheel was worn out. Fortunately, I was able to find a fine wheel in good shape from CS Machinery. He also had a cover to replace the missing one for one of the oil resevoirs. Cam Industries still exists. I was able to reach them through email, but only to get a response telling me that they do not make Mummert Dixon grinders any more, nor do they have parts available.

When I got the grinder it had to be the dirtiest machine I have ever bought. It was totally covered with gunk. It turns out that the previous users had replaced the stropping wheel with a muslin one and had been using the machine for buffing with soft rouge. Underneath the gunk was a coat of rouge, and when I tried to de-grease the machine everything ran red. I spent a day taking the grinder apart and cleaning it. The original paint is in reasonably good shape, so I am not going to mess with it.

The grinder is driven by a 1/3 hp. 3ph motor. Since I don't relish the thought of turning on my big converter every time I want to grind something, I thought about replacing the motor, but then remembered that I had a 1/3 hp static converter which I'd taken off one of my scroll saws. I wired that in and it works fine.

Another modification which I had planned to do was to see if I could put a wider wheel on the fast grinder. The stock width is only 1/2". It turns out that the prevoius owner had beat me to it. They had made a spacer from aluminum for the guard which allows a 1" wheel to fit. In addition they had made a spark arrestor and stolen an eye shield from some other grinder.

I replaced the wood oil deflectors, and now the grinder is ready for use. I'm looking forward to sharpening my in-cannel gouges. The leather strop is missing, so I turned a wood wheel of the correct dimensions. I plan to charge the surface with polishing compound at some point. I'm not really a fan of stropping.

Photo 1:

Comments: St up and ready to go
Source: Bill Thomas

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Photo 2:

Comments:
Source: Bill Thomas

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Photo 3:

Comments: pedestal label and Gleason Works number plate
Source:

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