The New Zealand Railways Magazine, Volume 5, Issue 2 (June 2, 1930)
(After Muscio.) — (A) Represents the general character of a cyclegraph record shewing motion only; (B) is the motion record timed by a vibrating tuning fork. (The dashes represent a pre-determined interval.) (C) Shews the motion time and direction of the motion (note blunt arrow heads); (D) a complete chronocyclegraph as screened out by Gilbreth to shew motion, time, direction and length of motion
(After Muscio.)
(A) Represents the general character of a cyclegraph record shewing motion only; (B) is the motion record timed by a vibrating tuning fork. (The dashes represent a pre-determined interval.) (C) Shews the motion time and direction of the motion (note blunt arrow heads); (D) a complete chronocyclegraph as screened out by Gilbreth to shew motion, time, direction and length of motion.