[GreenKeys] LPR 35 Slo Mo VideO
John, W9DDD
w9ddd at tapr.org
Wed Feb 1 16:12:48 EST 2023
From page 27 of 573-118-700TC
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.
Here you can see the relationship between the latch and slide. Page 30
showing how much the latch should clear the slide.
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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