[587]. Has extended beam and double cylinders, either as a compound engine or one cylinder may form a pump or blast cylinder. In some designs the high and low pressure cylinders are placed side by side and coupled to the same end of the beam by a modified parallel motion.
[588]. Side lever engine.
[589]. Plan of beam engine, with compound cylinders.
[590]. Walking beam engine.
[591]. Diagonal engine.
[592]. Three or four cylinder high-speed engine, with single-acting cylinders.
[593]. Vertical high-speed single-acting engine, with one or more cylinders.
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