Date: Fri, 13 May 2005 09:28:08 -0500

Author: "Carter, Tom"

Subject: force table and Young's Modulus parts

Post:

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Folks,
=20
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:
=20
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?
=20
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.
=20
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?
=20
Thanks.
=20
=
Tom
=20
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.
=20
------------------------------
Dr. Tom Carter
Physics
College of DuPage
(o) 630-942-3346
=20=20

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>
















Folks, IV>
 

     I'm hop=
ing all you=20
"old pros" out there can help a poor rookie find some parts for some older=
=20
simple lab equipment.  I need two items:

 

     1) The =
support rod=20
for the Force Tables made by Welch or Stansi Scientific.  These table =
are=20
the round tables with degree markings on them used so the students can visu=
ally=20
"add force vectors".  I've got the tables and I've got the three-leg=
=20
stands, I need the rods that connect the two.  The rod is pretty speci=
fic,=20
so I can't just buy threaded pipe at the Ace Hardware.  It's about 8.5=
"=20
long, very stiff and has a small hole in one end used for inserting a pin d=
uring=20
the experiment.   Anyone know where I can get just that support=
=20
rod?

 

     2) =
; The three=20
piece "gripping chuck" for the stretched cable in the vertical Young's=20
modulus setup.  My setup has "Cenco" markings on it, but my =
guess=20
is it was manufactured someplace else.  The chuck grips a cable at a f=
ixed=20
point while masses are added to the end of=20
the cable.  The chuck has to be a very specific size as it m=
ust=20
slide freely in a small hole in the setup.  By measuring small movemen=
ts in=20
this chuck, we determine the Youngs' modulus of the cable.

 

    This is =
old=20
equipment that got stuck in a closet by the previous administration.&n=
bsp;=20
I'm trying to get them all working to expand my lab. I'm hoping to avoid bu=
ying=20
entirely new setups since all I'm missing are these small parts.  Can=
=20
anyone suggest a source for these parts?

 

size=3D2>     Thanks.

 

size=3D2>           =
            &nb=
sp;            =
            &nb=
sp;            =
            &nb=
sp;      =20
Tom

 

P.S.  If someone has some o=
f these=20
parts and they'd like to work out a swap, give me holler.  I've got cl=
osets=20
full of stuff that's "90% working" (e.g. broken because I'm missing key par=
t)=20
and I'm willing to deal.

 

------------------------------ FONT>

Dr. Tom Carter

Physics

College of DuPage

(o) 630-942-3346

 






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