Applied Motion Study
A Collection Method to industrial Preparedness

MOTION STUDY AND TIME STUDY 69 Wire models of cyclegraphs and chronocycle- graphs of the paths and the times of motions are now constructed that have a practical educational value besides their importance as scientific rec- ords. These models are particularly useful as a step in teaching visualisation of paths by photo- graphs alone, later. Our latest apparatus in the field of recording devices apparently fulfils all present require- ments of the time- and motion-study experts and their assistants and the teachers who are now de- voting their lives to the transference of skill and experience from those who have it to those who have not.1 We have also devised and used many special kinds of apparatus; for example, devices for re- cording absolute continuity of motion paths and times, doing away with the slight gaps in the record that occur between one picture and the next on the cinematograph film, due to the in- terval of time when the film is moving, to get in place for the next exposure. To overcome this objection we have a double cinematograph, that one part may record while the other moves from i See “ Primer of Scientific Management,” D. Van Nostrand Co., New York.