[GreenKeys] LPR 35 Slo Mo VideO

Wed Feb 1 16:53:33 EST 2023

FWIW from the Navy M28 school
https://www.navy-radio.com/manuals/tty/tty_maint_school.htm

BAIL
Is moved by a part, and when moved, releases or moves another part or parts.
BELL CRANK
Forms an angle and is used to change the direction of movement.
LEVER
Used for leverage or mechanical advantage.
RATCHET WHEEL
A circular wheel having teeth. It differs from a gear in the manner or cut
of the teeth, and how it is operated. A ratchet is usually pushed or pulled
by a pawl operating back and forth.
PAWL
A pivoted tongue or sliding bolt adapted to fall into notches on a ratchet
so as to permit motion in one direction.
DETENT
Used to hold a part or train of parts in a given position until acted upon
or moved.

Nick England K4NYW
www.navy-radio.com

On Wed, Feb 1, 2023 at 4:31 PM Jeffrey Golas <jeffg at junknet.net> wrote:

> I was going to make a similar comment, Id love if someone had a
> hieroglyphics guide to some of the nomenclature, particularly "bail".
>
> Jeff KC3GJX
>
> On Feb 1, 2023, at 4:23 PM, Paul Heller <paul0926 at comcast.net> wrote:
>
> I always look at drawings and read descriptions like this and have
> absolutely zero understanding. I admire those of you who know this stuff.
> Bail, latch, slide … I must have played hookie when they explained those
> terms.
>
> Paul
>
> On Feb 1, 2023, at 2:12 PM, John, W9DDD <w9ddd at tapr.org> wrote:
>
> 
>
> From page 27 of 573-118-700TC
>
> <odgfemeclpmfjonh.png>
>
>
> Best drawing I can find that shows connection between selector mechanism
> and the punch slides.  I know this doesn't show the slides.  The connect in
> where that arrow point above the left end of the punch slide latch.
>
> The push lever goes to the left if the bit is marking.
>
> The punch slide latch then rotates counterclockwise dropping the left side
> where the punch slide has been held, releasing the punch slide to be pulled
> left by it's spring.
>
> <haljklipndojinfb.png>
>
> Here you can see the relationship between the latch and slide. Page 30
> showing how much the latch should clear the slide.
>
> <pgdinihipebpamfg.png>
>
> The part shown above the Toggle Bail Eccentric is the reset bail discussed
> quite some time ago.  It is used to push the selected punch slides back
> after the punching has taken place.  They should then be 'caught' by the
> punch slide latch which by now would have been return to their clockwise
> position.  Soon after the selector starts a new character the reset bail is
> supposed to drop to be ready for punch slides to be released by punch slide
> latches.
>
> The reset bail is a different part number when you have an automatic tape
> feed out.  That implies to me that it somehow acts differently during tape
> feed out.  If feeding blanks, I could see it staying up and preventing the
> slides going left.  I really haven't digested that part yet, and maybe it
> has nothing to do with the automatic (letters | blanks) tape feed out.
> Maybe the reset bail isn't dropping far enough to allow selected punch
> slide to move left.  Going back to the clip from page 30 there's a
> clearance specified between the right end of the punch slide and the left
> end of the punch slide latch.
>
>
> You talked about swapping punch mechanisms between two units.  Remember
> the typing is in a different position between fully perforated and chadless
> units.
>
> ---
> ----
> You said "tomorrow" yesterday.
>
> The above comments or recommendations are SWAG. Use at your own risk.
> John, W9DDD
>
> On 1/31/2023 11:06 PM, John, W9DDD wrote:
>
> I'm not sure, from what I was just reading in one of the navy manuals.
>
> "Near the end of each selecting
> cycle, the transfer mechanism
> moves the intelligence in the
> form of a mechanical arrangement
> from the punch slides to the
> function box mechanism and to
> the positioning mechanisms."
>
> The transfer mechanism is what is circled in red in the photo below.  From
> what I quoted above the punch slides get set directly from the selector.
>
> A non-typing reperforator doesn't even have those (transfer mechanism)
> parts.  I wonder if the non-typing reperf description is of any help, and
> if the tape feed out is even covered in that document.
>
> I keep thinking that something is either jammed or out of sequence in the
> blank tape feed out mechanism, but I'm still trying to digest the theory of
> operation of that feature.  I am finding the NAVELEX 0967-LP-616-7010
> helpful because it seems to use the "dead horse" system of explanation.  As
> it explains something it seems to repeat information from the previous item
> that interacts with the topic ... less page turning back and forth.
>
> Clipped a bunch since my mailer complains if the size gets too big, which
> happens if too many images.
>
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