i wonder if it could be a old homemade diving compressor. lots of the diving equipment back in the day was homemade before suba tanks and equipment was available just a thought
That was my first thought when I saw the picture. I used and old belt drive refrigeration compressor for many years for my garage air compressor. Worked great.
You guys do know that you can take an older, stronger, Mason Jar, put some rocks in it so it will sink, then put some calcium carbide in it, then a bit of water, screw the lid on tight and pitch it in a pond and go fishing shortly! Dam Acetylene self-ignites at not much pressure at all is why. I want to say that acetylene bottles are filled with of course it along with some sort of light filler like cotton??? and then acetone that actually disolves the acetylene so that it can be pressurized, but PLEASE check me here....... pdq67
------------------------- True story- No Henway jokes this time. When I was a kid, maybe 11 or 12 years old, back in the early '60's, we used to blow up paint cans with calcium carbide. I don't know how we survived our stupidity back then but we did. We'd tale an empty 1-gallon paint can - the kind with with a snap-on lid, and then take a hammer and a finishing nail. and make about an 1/8 inch or so diameter hole in the side of the can, right near the bottom. Then we'd put about a teaspoon or two of calcium carbide in the can, add about a teaspoons of water, and snap the lid in place. Then we'd stand back and wait a couple of minutes for the acetylene gas to build up inside the can. When we figured we'd waited long enough, an/or the sides of the can would start to bulge from the pressure (!), the bravest - actually - the stupidest - among us would get down on their hands and knees and creep up to the can. Then crouching down as low as possible and as far back from the can as the their arm's reach would allow, light a match and hold the flame in front of the nail hole. The flame from the match would instantly ignite the escaping acetylene gas and suddenly there'd be a huge, thunderous "KABOOM", a huge orange fireball, and the lid from the paint can would blast up into the sky like a rocket, sometimes rising 70, 80, 100 or even more feet into the air! Most times we'd see the lids come back down and find them again, but a few others just kind of 'disappeared' into the ether, never to be seen again! God, we must of been totally insane back then! Mart3406 ===========================
Acetylene generators made their own pressure as the gas was made .The carbide powder would drop into the water tank and create acetylene gas . I have a book with pictures of a pipeline being gas welded . The acetylene generators are in horse drawn wagons. So i think someone replaced a broken gauge with what they scrounged up.
the guy that lived next to me when i was a kid had one and claimed it was for inflating his girlfriend!