[Larger plate.]

[581]. Horizontal tandem compound engine.

[582]. Galloway’s oblique compound engine.

[583]. Double cylinder compound engine, with receiver, cranks at right angles.

[584]. Trunk bed engine.

[585]. Double piston engine. The pistons are sometimes coupled to two crank pins at right angles.

Condensers (see [Section 25]) may be driven (a) from horizontal engines either direct by continuation of the piston rod, or (b) may be worked horizontally below by a vertical rocking beam coupled to the main crosshead, or (c) worked vertically below by a bell crank coupled to the main crosshead, or (d) by a separate small steam cylinder working independently, or (e) by a connecting rod or gearing from the crank shaft.

For Jet Condensers see [Section 25].

BEAM ENGINES, &c.

[586]. Ordinary pillar and overhead beam engine.