"OOOOH! What does THIS button do? And THIS button? Or THAT button? And that switch and that lever and that knob and dial and that thingy over HERE and that doohickey over THERE..."
"Hey, what was that funny sound? *sniff sniff* And what's that nasty stinky smell?...uh...oh..."
"Why should we be in such desperate haste to succeed and in such desperate enterprises? If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured or far away. It is not important that he should mature as soon as an apple tree or an oak. Shall he turn his spring into summer?
If the condition of things which we were made for is not yet, what were any reality which we can substitute? We will not be shipwrecked on a vain reality.
Shall we with pains erect a heaven of blue glass over ourselves, though when it is done we shall be sure to gaze still at the true ethereal heaven far above, as if the former were not?"
Terry was a manufacturer of smaller steam turbines used to drive auxiliary equipment such as pumps and blowers. The arms are linakge from the governor on the turbine to control its speed/load.
Well, this confirms my previous comment. the MG sets may have been used to charge the batteries. Batteries provided DC power for working protective relaying and circuit breakers in the switchgear and switchyard if the plant was off line and needed power to come back.
Motor generator sets. Could have been used as auxiliary exciters. The generators had their own exciters right on the rotor shafts. Another use for MG sets in an old plant was making DC power for the bridge cranes, as well as for charging the station battery banks. Any power plant had a large bank of glass-cased lead-acid storage batteries. These made DC power to work protective relaying and operate large circuit breakers when the generators were off the line. 120 volts or 208 volt DC for these purposes was common in the power plants.