View single post by Russ Huber
 Posted: Fri Nov 8th, 2019 01:28 pm
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Russ Huber

Joined: Mon Nov 14th, 2005
Location: Southwest, Wisconsin USA
Diehl was a world of cast iron DC desk fans until they followed suit with Westinghouse in 13 placing a full line of "pressed steel" component desk fans. They must of maintained their cast iron standards as well with rail and ship fans. With the start of the war Diehl must of been financially strapped as by 16 the use of pot metal on their fan motor line became more prominent. They became a division of Singer in 18 as mention above and in past.  21 was an economic slump. I see the spoke guard for sure in 22 with the funky badge either Diehl or Singer. By 24-25 Diehl had the pressed brass medallion badge. 

It appears Diehl's first in home factory made AC fan motor was 13. There is a ton of details on Diehl.