ess or ellipse is thrown avoid counter-pressure on the driving shaft, and the steam admitted by the passage of the pre- same radial lines as the abutments, A circular into gear with the stem studs by sliding the obtain a large propelling area on opposite sides vious piston being retained to act… … 1 annular water space. The external much in like manner to the ordinary action of of one wheel, thus economizing space, and water space is exposed to the heat of the fire slide valves. The exhaust pipe, F, connects commencing its expansion, the propelling area avoiding irregular and lateral strain.…
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