Internet Horology Club 185
Help with clockworks identification

This topic can be found at:
https://ihc185.infopop.cc/eve/forums/a/tpc/f/6346047761/m/7093956797

October 13, 2022, 12:55
Foster Curry
Help with clockworks identification
Can someone help provide id for the clockworks shown in pic?
I have looked extensively for ST like this one but without success.


October 15, 2022, 22:03
Mike Benda
No idea mr curry
That looks very interesting
I understand there were many independent makers
Looks old
I do like the markings
Mike
October 18, 2022, 05:13
Foster Curry
Thanks Mike for your reply. Old wall clock that would run too fast no matter what I did with the pendulum which I think is too short. I have a new mainspring to install but trying to figure out what I’ve inherited from in-laws who were antique dealers.
October 20, 2022, 14:18
"Curly" Sjolander
The movement shown is Seth Thomas model 41A. It should measure 6” high, 5 1/2” wide by 4” thick. Length of the suspension from center of movement to center of bob should be 13”.

There was another variation of the 41 movement, the 41M which is the same except that the suspension length was 7”.

Hope this information is helpful.

Curly
October 27, 2022, 00:47
Foster Curry
Thanks for the response. I’ll confirm measurements you gave by late November as I’m away from the clock. Any idea of the probable age and what the 4-7/8 mean in lower left of pic?
October 28, 2022, 08:20
Dave Turner
I'm sure Curly can straighten this out, but I think the 41 movement has a 13" pendulum drop.
And I don't see any examples of 41's with 4 7/8"?


Dave Turner
October 28, 2022, 20:24
"Curly" Sjolander
Guys, I found the info on the movement in Tran’s Seth Thomas book volume one. it didn’t say anything about the 4 7/8. I have seen that before somewhere but can’t remember where. This old age thing is really fun. I will do some research to see what I can find this weekend.

Curly
October 30, 2022, 08:05
Foster Curry
Oh wow! That’s very kind of you.
October 30, 2022, 14:52
"Curly" Sjolander
Guys, I did some more research on the #41 movement and found that the info I was looking at was from 1907.
Further info revealed that there were more then 21 variants of the #41 movement in later years.
I could not find enough photos that were clear enough to identify any numbers on the right rear leg of the movements that would indicate they were using them to ID pendulum length, but that is probably what it indicates

Hope this helps, Curly
November 02, 2022, 06:07
Foster Curry
Thank you for the info. Logic tells me the 4-7/8 stamp refers only to pendulum length.