On Feb 8, 9:52 pm, Clark Magnuson wrote:
http://bbs.homeshopmachinist.net/showthread.php?t=27486

I'm just trying to figure out exactly what happened. It looks as
though his shirt got caught (it was likely quite cold, since he
appears to be wearing multiple layers of sweaters, and the layers of
clothing probably contributed), and due to the size of the lathe it
was able to bodily pull him into and UNDER the chuck and workpiece. I
think most of the mess is due to what appears to be a complete
amputation of the left arm above the shoulder, likely due to the
chuck. The torso is nearly bisected from the force of the spinning
chuck. If he had been merely pulled into the rotating work, he might
have suffered a limb amputation or other injury, but probably would
have been permanently disabled rather than killed. It looks like that
massive chuck did the damage.

I think the key to analyzing industrial accidents is trying to
determine what could have been done to prevent the situation from
occurring. In this case, a chuck guard would have protected him from
that danger that the spinning chuck posed. Other than careful
warnings about excessive clothing and proximity to the workpiece, I
doubt that much could have prevented the actual initial grabbing of
the clothes.

I hope that these images can help prevent a future machinist from
falling victim to a similar accident.
ww88