What's New?
Check out my parts for sale page as I have reduced many
prices.
Seth Thomas Design Changes Over the Production Period
1924 to 1954
Today a ST # 124E model came in
for me to look at. I unpacked it and carefully set it on the benchtop. The first
thing I saw is that it did not set flat on the bottom. I thought they all did. I
looked at several other ST#124’s in the shop and all set flat on the base. What
is different about this one? I noticed right off that this had riveted
mainspring boxes so my theory that someone changed the time MS box, went out the
window. I let down all 3 mainsprings and removed the lower MS plate. What I saw
brought more questions, as to was the time gear 1st wheel the same
size as all others I had worked on? The answer is NO. Does this change the speed
of the second wheel and does it make any difference? Are there the same number
of gear teeth on the #2 wheel?
I went through the other ST#124’s
I have in storage and found a #124E with riveted boxes with the larger time box.
I do not know why this change was made, but might guess it was near the end of
US production of the #124, before going to the German movements, and maybe using
up excess parts.
My suggestion to repair people is
to measure the time box outside diameter as well as the 1st wheel
diameter and if you find one to buy be sure to check the size. I do believe it
still takes a #182 MS even in the larger box.
March 22, 2023
Today I finally made the decision to
purchase a Sherline lathe and mill attachment. I ordered the 8 inch lathe in a
metric setup. This decision was made after I got a quote for
having a new shaft for the chime shutoff lever at $100 each. I am new to machine
tools
but have worked in the printing industry all my life and done a bit of metal
work from time
to time. I expect to spend a little time on a learning curve. Thanks to the
Sherline website
with the videos and youtube. I will post pictures when I get it set up.
April 20, 2023
I have made my first chime shutoff
lever. I would say it is not perfect, but works as
it should. Here is a picture of the mill setup in my garage.
Will be learning more and practice in the future.
What's New pp. 2
©
1/2023 by Spencer Smith