8 Dec
2024
8 Dec
'24
3:21 a.m.
Looks like a perfect copy of an IBM 001. They probably copied the defects too… I’d look up
IBM 001 manual.
Marc
On Dec 4, 2024, at 1:01 PM, David Wade via cctalk
<cctalk(a)classiccmp.org> wrote:
The punch pin in the die block. After lots of
cleaning the slots with a very small file and lubricating with a modern lubricant with
PTFE it now seems to punch but the mechanism that controls the card advance seems to
stick..
On 04/12/2024 18:49, Tony Duell wrote:
Mine says "Made In India" as well...
On Wed, Dec 4, 2024 at 6:41 PM David Wade via
cctalk
<cctalk(a)classiccmp.org> wrote:
Folks,
I have been trying to restore a manual card punch. The type with 12
"Buttons" or "Plungers" that operate a lever which pushes a punch
"pin"
through a die to create a hole in a card.
Its almost identical to this one:-
https://www.computinghistory.org.uk/det/38019/ICL-Hand-Key-Punch-Card-Machi…
I
know it. Mine has an ICT (International Computers and Tabulators)
badge on the front
so despite lots of cleaning some of the pins stick down. Does any one
have any suggestions how to clean the small square slots?
From memory there's
the stem of the key in circular holes. There's a
flat on the stem to engage the punch lever which is pivoted at the
left hand side. And the punch pin in the die block.
Do you know what is sticking? There's a unit with 12 slots with ball
bearings between some of them
to the left of the buttons.. It prevents you pressing more than 1
digit key down at once. That cam cause the levers to stick.
It doesn't have this....
... and I need to clean the rest...
-tony
Dave