[GreenKeys] Model 28 Paper Feed

[DR HOUSE]

Richard,

There are two types of winders that were used on the M28... one is the  
older model first used on the 15 and 19. It mounts on a right angle  
bracket that is attached to the back of the 28 cabinet. The clutch is  
a primitive unit that uses a composite material that is greased from  
time to time and the paper is routed under a rod that positions the  
paper to wind properly onto the winder spindle.  Normally these  
winders are held in place by two thumb screws that can be loosened and  
the winder can be moved horizontally.

The LPW300 winder when painted green was used on the M28 with a  
bracket designed for the 28 cabinet. When painted gray it was used on  
the M33 and M35 machines, each machine has it's own mounting bracket.  
This winder has a copy display rack that allows the paper to be  
displayed above the winder before it goes under the actuating arm and  
around the spindle. This winder uses a vial of mercury to energize the  
motor when the paper needs to be wound.  It is more erratic than the  
M15 winder.

I have the installation manual for the newer LPW300 winder that I can  
scan and send to you if that is the one you have.  Can you tell me  
which winder you have or send me an image?

Best,
Don K9TTY


On 3 Jun 2012, at 6:29 PM, Richard Dillman wrote:


We use a 28ASR at the KSM receive site to copy RTTY being sent from  
the transmitter site so visitors can see a real Teletype machine in  
action.  We have a paper winder on the machine generously donated by a  
list member.  But there's a problem.

As the winder takes up the paper it's displaced slightly to the left  
(looking at the machine when standing in front of it) so that the  
paper contacts the left flange of the winder spool and becomes folded  
and ripped.

The mounting holes in the M28 case and the winder do not provide for  
any lateral adjustment.  I believe I am routing the paper through the  
machine correctly.  Does that mean that the typing unit needs to be  
moved laterally?  Or am I, as usual, missing something obvious?

RD

=================================
Richard Dillman, WPE2VT
Chief Operator, Coast Station KSM
Maritime Radio Historical Society
http://www.radiomarine.org
=================================
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