01-20-2014, 09:22 PM
In firefighting, a Higbee Notch is a notch in one of the wrench tabs on each hose fitting. When you line up the two notched tabs and turn the fittings, the threads engage immediately. I had assumed that was the whole history, but I can see it originating with breech-loading artillery.
Mike
If you can't get one, make one.
Hawkeye, proud to be a member of MetalworkingFun Forum since Jan 2013.
If you can't get one, make one.
Hawkeye, proud to be a member of MetalworkingFun Forum since Jan 2013.