Date: Fri, 13 May 2005 09:28:08 -0500
Author: "Carter, Tom"
Subject: force table and Young's Modulus parts
This is a multi-part message in MIME format.
I'm hoping all you "old pros" out there can help a poor rookie find so=
me parts for some older simple lab equipment. I need two items:
1) The support rod for the Force Tables made by Welch or Stansi Scient=
ific. These table are the round tables with degree markings on them used s=
o the students can visually "add force vectors". I've got the tables and I=
've got the three-leg stands, I need the rods that connect the two. The ro=
d is pretty specific, so I can't just buy threaded pipe at the Ace Hardware=
. It's about 8.5" long, very stiff and has a small hole in one end used fo=
r inserting a pin during the experiment. Anyone know where I can get just=
that support rod?
2) The three piece "gripping chuck" for the stretched cable in the ve=
rtical Young's modulus setup. My setup has "Cenco" markings on it, but my =
guess is it was manufactured someplace else. The chuck grips a cable at a =
fixed point while masses are added to the end of the cable. The chuck has =
to be a very specific size as it must slide freely in a small hole in the s=
etup. By measuring small movements in this chuck, we determine the Youngs'=
modulus of the cable.
This is old equipment that got stuck in a closet by the previous admini=
stration. I'm trying to get them all working to expand my lab. I'm hoping =
to avoid buying entirely new setups since all I'm missing are these small p=
arts. Can anyone suggest a source for these parts?
P.S. If someone has some of these parts and they'd like to work out a swap=
, give me holler. I've got closets full of stuff that's "90% working" (e.g=
. broken because I'm missing key part) and I'm willing to deal.
Dr. Tom Carter
College of DuPage