Posted by Janicholson on February 07, 2010 at 11:51:56 from (64.61.211.33):
In Reply to: Re: governor mystery? posted by mike paulson on February 07, 2010 at 11:32:42:
In the late 1700s !! Steam engines were the deadliest! Operators were controlling boiler pressure, boiler water, air to the fire, fuel to the fire (with shovel or by hand throwing in wood). On top of those he (few shes in this mix) controlled the valve admitting steam to the pistons. In the earliest he even controlled which end of the piston got steam. (or steam and condensing water) There were no pressure limiting popoff valves, or safety devices at all! EXCEPT the engineer. In the 1930s my grandfather was a Sawyer for WPA making timbers in Southern Illinois. The engineer was lazy and (even after repeated warnings) failed to repair the governor belt. It broke and allowed the governor to slow, thus opening the throttle all the way, thus spinning the 48" insert toothed saw way beyond spec. The teeth went first and sprayed shrapnel to the wind, then the blade went into two pieces. One was buried in the ground out of sight, and the other half sailed 1/2 mile into the air over a hill. Everyone knew to run sideways. The FW blew into 3 pieces big enough to use for scrap, and the rest was history. Jim
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