[GreenKeys] Dash Pots

Mon, 05 Aug 2002 19:47:36 -0400

Dashpot    According to my dictionary, the word was coined in 1861  a 
device for cushioning or damping a movemen (as of a mechanical part) to 
avoid shock.

1861,  a bit before Morcrum or Kleinschmidt.... maybe.   I've seen them 
used in other devices too.

We (FAA) just replaced a printer here in order to conserve paper.  Costs 
money.  Using a PC running HyperTerminal logging traffic to a floppy.... 
 We save the traffic 15 days and reuse the media.   So in true 'Govmint' 
form I titled the floppies Paper Conservation Disks.   Shoulda called 
 'em Disks, Paper Conservation.  We log them as PCDs......  

> **

PCRRD...  Good one.

Gil, W1RG

Don Robert House wrote:

> Most likely the answer was simple; all of these parts look like small 
> pots when they are off the machine.  The carriage "dashes" to the left 
> when it is returned.  In the machines like the 12 and the 26 the 
> platen dashes while the carriage stays put.
>
> I doubt anyone really knows where the term really came from.
>
> Don
>
>
>
>
>
>
>> Good question!  While going through the adjustment manual, I often 
>> wondered
>> who sat around and thought up the names for those parts.  They were
>> certainly a lot more original than the "alphabet soup" method of naming
>> things today.
>>
>> PCRRD - Pneumatic Carriage Return Retardation Device?
>>
>> PDW
>>
>>
>>
>> ----- Original Message -----
>> From: "John Brancich" <[email protected]>
>> To: <[email protected]>
>> Sent: Monday, August 05, 2002 6:37 PM
>> Subject: Re: [GreenKeys] Model 19 character spacing
>>
>>
>>>  Thank you Paul.  That was it, the left margin adjust screw.  
>>> There's no
>>>  bounce on the return, either.  I've always wondered what exactly 
>>> the dash
>>>  pot does, and now I'm starting to understand it.  Where did they get a
>>>  name like "dash pot" though?
>>>  John, NJ0N
>>>
>>>
>>>  > On the left of the carriage is an adjustable "stud" that operates 
>>> the
>>>  > carriage return lock lever.  When the lever operates, it 
>>> re-engages the
>>>  > clutch that drives the carriage spacing.  (I'm doing this from 
>>> memory
>>>  > as the teletype is home)  When the carriage is released, it 
>>> should rest
>>>  > against the fully operated lever.  The problem is that if the 
>>> stud is
>>>  > extended too far it may lock the clutch before the carriage gets to
>>>  > it's most left position.  Considering the first two columns: 
>>> extending
>>>  > the stud will eventually allow the carriage to rest cleanly at the
>>>  > second column. Shortening the stud will cause it to rest cleanly 
>>> at the
>>>  > first column.
>>>  >
>>>  > Make sure the dashpot is doing its thing.  Holding the carriage 
>>> release
>>>  > in and letting the carriage go from its far right position  note 
>>> that
>>>  > it comes to a clean quick stop without bouncing.
>>>  >
>>>  > PDW
>>>  >
>>>
>>>
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