[GreenKeys] M15 typebars...

[Doug Alderdice]

This may also be of interest:

https://www.google.com/patents/US2474658  Type pallet aligning jig

73,

Doug.


On 5/5/2015 4:14 PM, Pete Lancashire wrote:
> https://www.google.com/patents/US1608015 Mechanism for locating type
> plates on type bars
> https://www.google.com/patents/US2481081 Means for aligning type pallets
> https://www.google.com/patents/US1890659 Type-soldering device
>
>
>
> On Tue, May 5, 2015 at 11:10 AM, Jerry Murphy <gfmurphy at earthlink.net
> <mailto:gfmurphy at earthlink.net>> wrote:
>
>     Teletype made the '116749 Type-Pallet Soldering Jig' for re-aligning
>     typepallets on Model 15 page printers.
>
>     Here's the basic information in a highly condensed version:
>
>     To start the process, the type carriage is removed from the printer
>     and the ribbon guide is then removed
>     from the typebar guide.  The jig is a machined aluminum block which
>     is placed over the typebar guide
>     and locked in place.  A suitable typebar is selected to serve as the
>     reference typebar.  Attached to the
>     jig is an adjustable plate which the reference typebar will touch.
>     The adjustable plate is locked in place
>     relative to the jig once the reference typebar is seated correctly
>     against the adjustable plate.  The adjustable
>     plate will set the height of the new typepallet and its tilt.
>     'Tilt' refers to the quality of having the typepallet
>     strike the platen squarely rather than having the top darker than
>     the bottom or vice-versa.  The pallet that
>     is being replaced is removed from the typebar.  The new pallet is
>     placed on the typebar and moved into
>     the soldering jig.  The new pallet and the typebar are held against
>     the adjustable plate by a spring loaded
>     arm.  The pallet is carefully positioned relative to the jig and the
>     typebar and then soldered into place.
>
>     This information is from Teletype Spec. S-5588, Issue 1, dated
>     December, 1947.
>
>     I have seen the 116749 Type-Pallet Soldering Jig in the Teletype
>     tool book but I was unable to find it in
>     any of the on-line books that I looked at.  Sorry that I can't
>     provide a picture of the device or a reference
>     for a picture.
>
>     Jerry Murphy
>
>
>
>         -----Original Message-----
>         From: Kenneth Gartland __
>         Sent: May 5, 2015 6:50 AM
>         To: GreenKeys at mailman.qth.net <mailto:GreenKeys at mailman.qth.net>
>         Subject: [GreenKeys] M15 typebars...
>
>         Hi all...
>         Noticed posting on the M15 typebar problem, Reggie
>         was working on...
>         Jim is right...Re-positioning the type pallets
>         is the only correct way to align the type...
>         The typebars in question are probably
>         the ones which were recently replaced, i.e. the
>         NOS typebars provided by various GK'ers...
>         Bending the typebars is never a good idea...It is slow & tedious
>         to align the typepallets, but the only way...
>         You need a fairly heavy duty soldering iron with a chisel face
>         to heat & re-position the pallet...You mite have to reposition
>         it a few times to get it rite.
>         I used the print position of the letter "M" as my starting point...
>         The rest of the typebars are probably OK, as they were
>         the original ones in the basket.
>         Be patient, and the results will be worth it...
>         Cheers & good luck!
>         Ken VE3-HMQ
>         __