These pictures are of a Meteor brand grinding attachment and a Niagara
sheet metal rolling machine. The numbered tags in the photos point to
features described below:
1) Drill chuck that rotates freely and slides back and forth on the
shaft. The lever locks the chuck assembly on the shaft.
2) This is a mounted diamond which must be for dressing a wheel.
3) The whole grinding attacmnent clamps onto a shaft that must come off
a grinding machine. This knob moves the whole assembly toward or away
from that shaft.
4) This knob moves the diamond back and forth.
5) This is a scale which indicates plus or minus the centerline of the
chuck and center to the centerline of the shaft that the chuck assy. 
slides back and forth on.
6) This is the finger that the cutter tooth rests on for indexing and
grinding.
7) These are rotation stops. The drill chuck, finger, and center all
rotate about a common center. These stops limit that rotation.
8)This is the part that clamps onto a shaft that must come from the
grinder.
9) This is the center that supports one end of the part being ground.
Pictures Met1.jpg through Met15.jpg show the grinding attachment. 
Met16.jpg is the Niagara sheet metal machine.
 I would like to know what the grinding
attachment is for and how it is used and would like to know what the 
toothed wheel on the sheet metal machine is for.
Thanks,
Eric R Snow