The Lungmotor appears to be an early CPR device, apparently consisting of a handpump connected to an anaesthesia mask. I'm guessing that the conical attachment is a chamber into which chemicals can be combined to react and release oxygen. The
bottom photo shows a demonstration of the device in 1900, but I also found a report of a military training accident in 1944 in which -
The first call for help was received by Watchman T.D. Johnson of the Little Rock Fire Department at 6:12 p.m. He telephoned to undertakers and dispatched lungmotors to the scene...
Photo credit.
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