Talk about a sore subject for me...
1975... I took a year off after high school, before going to college, and
worked as a sheet metal fabricator and welder at a factory that made
chemical & food dryers.
One day, I was tightening a bit in the chuck of a large drill press. My
fingers were wrapped around the chucky key as I tightened the bit, and the
drill was set to a very high speed....and this old guy I worked with turned
the drill on.
The force of the drill corkscrewed my hand, then my arm, then my whole body,
and flipped me around. When I got off the ground, in intense pain, my hand
almost immediately swelled to twice its normal size. They sent me to the
"company clinic". I don't even remember if I got an x-ray. To this day, I
have a knot on the tendon in the palm of my hand.
From owner-spridgets at autox.team.net [mailto:firstname.lastname@example.org]
On Behalf Of Timothy H. Collins
Sent: Friday, February 17, 2006 9:26 PM
To: James Gruber; email@example.com
Subject: Re: Chuck becomes flying projectile
I assume that your setup is a Jacobs chuck with a morse taper (#2 ?) and
not threaded. If so, I assume that the taper on the chuck is miss-matched
to the machine or at least out of tolerance since you have taken great care
to clean things up.
Check this discussion:
1966 AH Sprite