Date: Mon Feb 26 11:37:06 2007

Author: Bill Norwood

Subject: Re: Bernard's Guns

Post:
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Many thanks, Bob, it is bnorwood@umd.edu



_____

From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On
Behalf Of Curry, Robert T
Sent: Monday, February 26, 2007 11:12 AM
To: tap-l@lists.ncsu.edu
Subject: Re: [tap-l] Bernard's Guns



Bill,

Our's were trouble-free for years, but in the last few years, they have
required a lot of shop time. The pivot pins for the catch plates are one of
the most common breakages. They break first on one side, and continue to be
used until the other side breaks, so the broken end eats out the aluminum,
producing increased clearance between the plate and the aluminum, which of
course leads to more rapid breakage. Our machinists are working on a
solution.



I would be happy to send you my writeup if you'll give me your email
address.



Bob Curry



_____

From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On
Behalf Of Bill Norwood
Sent: Monday, February 26, 2007 9:16 AM
To: tap-l@lists.ncsu.edu
Subject: [tap-l] Bernard's Guns



Hi Tappers,



Ol' Bernard went Ballistic, as some of us know.

Anybody know how to reach him or his descendents for help or replacements
for our Beck's?



By the way, we have signed, typed letters from Bernard Beck from the 1960's
and 1980's.



Also, I am concerned that we may have worn out our ballistic pendulum guns
too fast by using an experimental procedure that might have called for
perhaps twice as many firings as might have been necessary otherwise.



If you have a lab manual write-up you could share I would be delighted to
look at it.



Many Thanks,



Bill Norwood

Technician

Elementary Labs

Physics, U of MD, College Park


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Many thanks, Bob, it is =
bnorwood@umd.edu











From:
tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On Behalf Of Curry, Robert T
Sent: Monday, February =
26, 2007
11:12 AM
To: =
tap-l@lists.ncsu.edu
Subject: Re: [tap-l] =
Bernard's
Guns





Bill,

Ourís were trouble-free for =
years,
but in the last few years, they have required a lot of shop time. =
The
pivot pins for the catch plates are one of the most common =
breakages.
They break first on one side, and continue to be used until the other =
side
breaks, so the broken end eats out the aluminum, producing increased =
clearance
between the plate and the aluminum, which of course leads to more rapid
breakage. Our machinists are working on a solution. =




I would be happy to send you my =
writeup if
youíll give me your email address.



Bob =
Curry











From:
tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On Behalf Of Bill Norwood
Sent: Monday, February =
26, 2007
9:16 AM
To: tap-l@lists.ncsu.edu
Subject: [tap-l] =
Bernard's Guns





Hi Tappers,



Ol' Bernard went Ballistic, as some of us =
know.

Anybody know how to reach him or his descendents for help or
replacements for our Beck's?



By the way, we have signed, typed letters =
from
Bernard Beck from the 1960's and 1980's.



Also, I am concerned that we may have worn out our ballistic =
pendulum
guns too fast by using an experimental procedure that might have called =
for
perhaps twice as many firings as might have been necessary =
otherwise.



If you have a lab manual write-up you could share I would be =
delighted
to look at it.



Many Thanks,



Bill Norwood

Technician

Elementary Labs

Physics, U of MD, College =
Park







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