[GreenKeys] LPR 35 Slo Mo VideO

Wed Feb 1 17:23:38 EST 2023

Nick - the "ChatGPT" of Teletype LOL.

Jeff

On Wed, Feb 1, 2023 at 4:53 PM Nick England <navy.radio at gmail.com> wrote:

> 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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>>
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