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  2. covered hopper pneumatic discharge

Re: covered hopper pneumatic discharge

Tim O'Connor
 

Dennis

Ahem. I'll offer a gentle reminder that airslides all use pneumatic outlets,
and they began to appear in 1954. Even gravity-pneumatic outlets were offered
by 1960, if not earlier. The 1961 CBC has ACF, GATC and other photos and
illustrations of pneumatic outlets.

Tim

I think for the most part pneumatic discharge gates postdate the 1960 cut-off of this list. You might have better luck on the Baby Boomer Freightcar List:

http://finance.groups.yahoo.com/group/bbfcl/messages

As a general rule, gravity gates look like flat sliding plates, while pneumatic discharge gates look like lengths of stovepipe mounted crosswise to the car. Sometimes these were mounted to the bottom of a sliding gravity outlet gate, so the car could be used either way. Car and Loco cyc/s from the sixties and seventies have lots of illustrations.

Dennis
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