And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
'Oil-free' = planned obsolescence. You have to shop carefully now to find a compressor with a functional oil sump. And yet all compressors have a crankshaft with a journal bearing, and a piston - with rings.
Our supervisor keeps one at the office, and it certainly beats the 12 volt car air compressor. Certainly not something I'd try to run a shop with, but definitely useful. Aggie, I think if it's oil free, it probably has a diaphragm pump instead of a piston with rings.
Batteries, ugg. And $400. Hahahaha.
ReplyDeleteagree!
Delete'Oil-free' = planned obsolescence. You have to shop carefully now to find a compressor with a functional oil sump. And yet all compressors have a crankshaft with a journal bearing, and a piston - with rings.
ReplyDeleteOur supervisor keeps one at the office, and it certainly beats the 12 volt car air compressor. Certainly not something I'd try to run a shop with, but definitely useful. Aggie, I think if it's oil free, it probably has a diaphragm pump instead of a piston with rings.
ReplyDeleteThose things are marginally useful.
ReplyDeleteFor blowing up a basketball?
Be better all the way around to use a hand pump.
I wonder which is more efficient, the weight of the battery or the bulk of a bigger tank?
ReplyDelete