Posted by jerry watkins on November 19, 2008 at 13:54:23 from (75.137.36.34):
On my midwest tour this came up.. Must have seen over a thousand round concrest grain silos. Looke like almost all were early 30,s maybe in the 40s construction. was anyone on the board living or ever worked on builcing one of these. I suppose it was some kind of slip form that went up as the concrete was formed but what was used to lift the concrete. Now days we have pumps were they avl back then. coments welcomed to my e-mail.. thanks j.w.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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