[GreenKeys] Armature lock

[John Nagle]

On 11/25/2016 09:54 AM, greenkeys-request at mailman.qth.net wrote:
> Message: 7 Date: Thu, 24 Nov 2016 23:11:58 -0500 From: Ed Sharpe
> <couryhouse at aol.com> Subject: Re: [GreenKeys] Western Union 2B Parts
>  Needed
>
> weird thing. the lever is referred.. to as an armature lock in John
> Nagle's...parts book...  is it for locking letters only or  figs
> only.

    The "armature lock" mentioned in the parts book is part of the
selector.   See page 4 of Bulletin 1028, right column.

    http://www.aetherltd.com/public/model14manuals/1028B-Iss2-Feb36.pdf

Also see, on the next page, that there are two different cam sleeve
options, one with an extra cam track for the armature lock.

The armature lock is a cam-driven mechanism which locks the
armature in place after it has received one bit of MARK or SPACE.
If you've worked on a selector, you know that for parts of
the cycle, the armature won't move. That's the armature lock.
I didn't know there were machines without an armature lock,
but apparently there were early Model 14 machines without it.
All Model 15 machines, as far as I know, have it.

     That has nothing to do with LTRS/FIGS.  Bulletin 1028
from 1936 doesn't seem to show the front-mounted bell option,
whatever that bell does.  There are normally two bells
on a Model 14 - one for BELL, and one for out of tape.
The second one is mounted on the base near the right rear.

     Many of the manual files at

http://www.aetherltd.com/manuals.html

are from Jim Haynes; soma are from Bitsavers.  Recently, I resized some
of the Model 14 files that were displaying as tiny pages. All the .PDF
files should now be properly sized and printable on letter sized paper.

				John Nagle