“This was the articulated, mallet compound side tanker, 100 ton class locomotive placed in serviced up the Mohawk-Mackenzie by Booth-Kelly in 1910. They soon had three. This catastrophe shows the articulation exaggerated as it derails on the brink of the washout. The name implied that it would work as limberly as a finger and it did.
The front unit was connected to the boiler by the pivot which allowed the front of the boiler to go off center of the track. The front drive unit turned tangent while the rear unit ran on its own tangent, developed a definite angle between them. The compound engines used the steam twice. The front set took the steam, which was still under pressure from the rear ones and used it over. A couple of square heads I knew who ran the woods was Abram and Miles. Stevens was a head faller. The founder’s grandson and namesake, Bob Booth was a friend.” – written by Howard B. Taylor