ClipArt ETC
"A gas engine mounted on a binder frame and used to operate the elevating and binding mechanism."—The Federal Digest

Gas Engine

"A gas engine mounted on a binder frame and used to operate the elevating and binding mechanism."—The…

Internal-combustion engine, side view.

Gas Engine, Internal-Combustion Engine

Internal-combustion engine, side view.

Internal-combustion engine (sectional view)

Gas Engine, Internal-Combustion Engine

Internal-combustion engine (sectional view)