Posted 3 years ago
Wallnut
(1 item)
I picked this up at a garage sale a few years ago. I love it.
Anyone know what year it might be?
I'd like to know more about it.
Old Honeywell thermostat. | ||
| Tools and Hardware301 of 9815 |  |  |
Old Honeywell thermostat. | ||
| Tools and Hardware301 of 9815 | | |
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Posted 3 years ago
Wallnut
(1 item)
I picked this up at a garage sale a few years ago. I love it.
Anyone know what year it might be?
I'd like to know more about it.
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Nice find
Hi, Wallnut. :-)
Looks like the Smithsonian has one:
https://americanhistory.si.edu/collections/search/object/nmah_1392957
Here's the newest patent identified with a date on the back of the thermostat:
https://patents.google.com/patent/US1282546/en
And here's the one patented by Butz in 1889:
https://patents.google.com/patent/US409316/en
A lot nicer than my dad's crappy one in his 50's house, but not retro like yours !~
D'oh! I did this in too much of a hurry the other day.
Here are the two 1886 Butz patents for damper/flapper regulation:
https://patents.google.com/patent/US341092/en
https://patents.google.com/patent/US347866/en