Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.” —Marshall Cohen, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association
ADJUSTABLE PIPE
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ADJUSTABLE PIPE. In 1874 Jacob Willging of Dubuque invented adjustable stove pipe. The length of the pipe could be changed with the simple use of a set screw.
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Source:
"Caught on the Fly," Dubuque Herald, March 22, 1874, p. 4. Online: https://news.google.com/newspapers?nid=uh8FjILnQOkC&dat=18740322&printsec=frontpage&hl=en