Rolling Mill Accident Demo
May. 4th, 2004 11:16 amI have to say that this was harder to accomplish than we expected.
We sectioned two chicken wings and used the parts to fill the fingers of a latex lab glove (one wing base section for the thumb, wing center sections for the first two fingers, and wing tip sections with the small ends cut off for the pinkie and ring finger). Then we carefully wiggled that into a standard leather work glove. Finally, we packed the wrist section of the glove with paper towels and put a nylon wire tie around the cuff to keep everything in.
First, we tried setting the glove on a steel plate and running that through. The plates went, but the glove wouldn't feed. We tried starting the plates and then adding the glove. We tried hooking the glove finger tips over the plate. We tried an empty glove. None of these worked.
Then, we put the chicken-containing glove between two plates and fed them in. This worked a little - we crushed the ends of the bones, but the glove slide out.
Finally, we cranked the rolling mill up to full speed (we had been working at the normal 5-10 rpm, but we did the last run at about 300rpm), and sandwiched the glove between a thicker aluminum plate and one of the thin steel plates we had been using. This rolled everything flat, to the accompanying sound of bones crunching. Our thumb came out before it went through the rollers, and we didn't get clear bone prints on the aluminum, which may be because we had previously flattened the bones.
We're going to try it again (the same way as the last run) for tomorrow's class, and since it'll be the first run through the machine for that glove and wings, we hope to get a better imprint on the plate.
I'm not going to post the pics, but if you feel a need to look at them, they're at http://www.cae.wisc.edu/~bigchris/pics/lj/cr/
We sectioned two chicken wings and used the parts to fill the fingers of a latex lab glove (one wing base section for the thumb, wing center sections for the first two fingers, and wing tip sections with the small ends cut off for the pinkie and ring finger). Then we carefully wiggled that into a standard leather work glove. Finally, we packed the wrist section of the glove with paper towels and put a nylon wire tie around the cuff to keep everything in.
First, we tried setting the glove on a steel plate and running that through. The plates went, but the glove wouldn't feed. We tried starting the plates and then adding the glove. We tried hooking the glove finger tips over the plate. We tried an empty glove. None of these worked.
Then, we put the chicken-containing glove between two plates and fed them in. This worked a little - we crushed the ends of the bones, but the glove slide out.
Finally, we cranked the rolling mill up to full speed (we had been working at the normal 5-10 rpm, but we did the last run at about 300rpm), and sandwiched the glove between a thicker aluminum plate and one of the thin steel plates we had been using. This rolled everything flat, to the accompanying sound of bones crunching. Our thumb came out before it went through the rollers, and we didn't get clear bone prints on the aluminum, which may be because we had previously flattened the bones.
We're going to try it again (the same way as the last run) for tomorrow's class, and since it'll be the first run through the machine for that glove and wings, we hope to get a better imprint on the plate.
I'm not going to post the pics, but if you feel a need to look at them, they're at http://www.cae.wisc.edu/~bigchris/pics/lj/cr/