[GreenKeys] TT gear 162669 technical information

[COURYHOUSE at aol.com]

Russ  and group- Yes it is   good to  get it  out  there... In  fact,  I  
will add it  to the  _www.smecc.org_ (http://www.smecc.org)   museum  tty   
section... One other possibility is -  the  ore it is out  three   someone 
will stumble across it that has a  box of these  things in little  teletype  
packaging  envelopes. 
 
 
A  hobbyist  would  be  good  or    someone  in industry   that share our   
common interest  and love  of this old  stuff that tells his  staff... 
"hey!   make  100 of  these"    I  used to  find this in the older  generation 
of  machinists, not so much anymore,  but  we can  always hold  out  hope!
 
 
I wonder if that  extra  base I have  for a NAVY 28RO   uses  that  gear 
too? I have not studied this  thing closely. It  is a different   changer than 
my one  with the  metal  gears.  We are town  between  scrapping it  for 
the   pats that  are on it   or  trying to  find the rest of  it and  a   top  
case to make it  complete. We had a  few  offers  for it and  if they get 
high enough  we   would consider letting it  go and put the $$ towards 
another display case  here.
 
A while back I bought a 3 speed gearshift blindly but was real lucky.. it  
had an unadvertised pinion with it! The price was cheap and it was an NOS  
beauty!
 
 
Anyway  let  me  get this  info  posted  on  this  gear.
 
Ed Sharpe archivist  for SMECC
 
 
In a message dated 1/24/2014 5:41:06 A.M. Mountain Standard Time,  
wa3frp at aol.com writes:

Ed, 
 
That has been the problem in  the past.  In addition, many places charge a 
minimum of hundreds of  dollars for any work. I posted the  162669 gear 
information so that  everyone has the information that I was able to gather. 
Maybe, one day, we  will find a hobbyist with the proper tools who can make a 
quantity of these  gears and fulfill the "backlog"
 
73

Russ - WA3FRP
wa3frp at aol.com



-----Original  Message-----
From: COURYHOUSE <COURYHOUSE at aol.com>
To: wa3frp  <wa3frp at aol.com>; greenkeys <greenkeys at mailman.qth.net>
Sent:  Fri, Jan 24, 2014 12:06 am
Subject: Re: [GreenKeys] TT gear 162669  technical information


 
Russ - This is the  infamous  missing pinion   gear...
right!?
 
What is  the cost  of  gear  making......? My  experience  is  gear making 
is on the pricey  side..
 
Ed# 
 
 
In a message dated 1/23/2014 1:42:23 P.M. US Mountain Standard Time, 
_wa3frp at aol.com_ (mailto:wa3frp at aol.com)   writes:

This is a Teletype  Corporation gear associated with the three speed gear 
shift for the Model  28.
 
 
I was looking for this gear  a while ago and was able to get the following 
information that 
I understand would allow a  machine shop to build this gear, if necessary.
 
I am passing this along in case someone may have a use for this  
information.  
 
24 D.P. 
14 1/2 P.A. 
15 teeth 
11/32 pitch circle.
 
Face width 1/2"
Hub length 5/8"
Hub diameter 1/2"
Hub bore 3/8"
 
Thanks and 73

Russ - WA3FRP
_wa3frp at aol.com_ (mailto:wa3frp at aol.com) 



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