[GreenKeys] One-Hole Paper Punch

Ed Sharpe Archivist for SMECC via GreenKeys greenkeys at mailman.qth.net
Tue Apr 21 12:07:43 EDT 2015


Roy and Jim -    thanks!
any documentation or  photo  of in  use  we   can place with this item is  
appreicated!
 ed sharpe archivist for smecc




In a message dated 4/21/2015 8:06:31 A.M. US Mountain Standard Time,  
jhhaynes at earthlink.net writes:

On Tue,  21 Apr 2015, Roy Morgan wrote:
>  In the picture you sent right in  the middle is a one hole paper punch.
>  It is mounted on some sort  of stand or bracket which is extra, no doubt
>  a WU  addition.

One use for such a thing is to cut a notch in the edge of  paper tape
so that when the tape passes through the reader the tape-out  detecting
pin will go through and stop the reader.  I would have to do  more
research than I'm willing to do at this moment to find a citation  for
that use.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20150421/2367e0f7/attachment.html>


More information about the GreenKeys mailing list