Szukając sobie materiałów na temat toczenia miedzi, wpadłem na takie cudeńko.

Z tego co widzę to pan pracował na sporej tokareczce, złapało go za ubranko (to nawinięte spęczniałe na osi obrotu tokary), a potem go zmełło odrobinę.

Play safe.

"These have been posted on Practical Machinist before (and I reposted yesterday). The guys there think it happened in a second or two.

Comments by one of the members there:

HelicalCut: 500ft/min to reel in 2 ft of clothing, about 0.25 seconds then to be climb milled by a 16" 3 jaw with a surface speed of 2000 ft /min. Scary messy but probably quick, not much opportunity for a second chance with this equipment.

It looks like a 70's lathe so it probably had a foot brake, see my calculation above, the work on that machine was effectively a 4" winch drum mounted between centres, if it was mild steel then it probably had around 500 ft min surface speed, that is what I usually turn mild steel at. Once that winch grabs something it gets reeled in quickly 2 feet in a quarter of a second, not a lot of time to press a foot brake and bring a 16" chuck to a halt when a winch is pulling you off it."

http://www.silencertalk.com/forum/viewtopic.php?t=41444