[GreenKeys] Stock Ticker

[pdwills at cedarknolltelephone.com]

Thanks for the definitive answers.  I'm sure that Rick
appreciates it.

PDW

----- Original Message Follows -----
From: Brooke Clarke <brooke at pacific.net>
To: pdwills at cedarknolltelephone.com
Cc: wepbx at sbcglobal.net, "Greenkeys ((E-mail))"
<greenkeys at mailman.qth.net>
Subject: Re: [GreenKeys] Stock Ticker
Date: Wed, 26 Oct 2011 10:00:24 -0700

> Hi:
> 
> It's pretty simple.  With a known starting position (more
> on that later), say you're on the letter A (and for 
> illustration say the letters are in alphabetical order)
> then if you send 5 pulses you will be on F. With a known
> number  of possible positions you just keep going around
> and around.  One of the problems is what to do if a
> receiver gets out  of sync. Edison came up with the
> unison-stop that solves that problem.  I've got a lot of
> info on my patents web page at:
> http://www.prc68.com/I/StkTckPat.shtml#U1 and for the WU
> 5A ticker at: http://www.prc68.com/I/WU5A.shtml
> 
> I'd like to talk off line with Rick about how to identify
> the different versions of Edison's ticker.
> 
> Have Fun,
> 
> Brooke Clarke, N6GCE
> http://www.PRC68.com
> http://www.End2PartyGovernment.com/
> 
> 
> pdwills at cedarknolltelephone.com wrote:
> > Greetings all,
> >
> > One of my telephone switching collegues just acquired a
> > stock ticker and is interested in how it works.  Does
> > anyone here know about them?
> >
> > Rick's address is below.
> >
> > Thanks.
> >
> > PDW
> >
> > ----- Original Message Follows -----
> > From: Richard Walsh<wepbx at sbcglobal.net>
> > To: Paul Wills<pdwills at cedarknolltelephone.com>
> > Subject: Stock Ticker
> > Date: Tue, 25 Oct 2011 19:10:37 -0700 (PDT)
> >
> >> Hi Paul,
> >> Hope all is well.  Question - do you know anything
> about >> old stock tickers -  I recently had the good
> fortune to >> acquire an fine example of the "Universal"
> stock ticker - >> one of about 6000 made prior to 1890 (if
> what I saw on the >> internet is accurate).  
> >> I am trying to figure out how it works.  It has two
> >> electromagnet coils - one advances the print wheel to
> >> orient a specific character, and the other operates a
> >> print hammer that pushes the paper against the selected
> >> character. The latter coil also seems to reset some
> aspect >> - but not as you'd expect - to reset the wheel
> to the >> first character (there is no spring to reset the
> wheel >> back to a starting position. I don't know if the
> system >> required two "telepgraph" circuits - one for
> > each coil? I
> >> don't know if local batteries were required. Pictures
> >> available.  
> >> Rick
> >>
> >
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