This page of the book is from "The New Student's Reference Work: Volume 3" by Chandler B. Beach, Frank Morton McMurry and others.

SECTION MOTOR CAR, replacing ordinary hand car. It not only transports section men, but it is also a portable machine shop. Removed from the track, the engine can drive power shafts while the car stands at rest. It drills holes in rails, operates a wood or metal saw. riveting tools, a concrete mixer, etc.
Eight tools can be operated at a time.