Applied Motion Study
A Collection Method to industrial Preparedness

114 APPLIED MOTION STUDY then, was to obtain an accurate record of the mo- tion. We used the fewest motions, shortest mo- tions and least fatiguing motions possible. We wrote, and collected, descriptions of motions. We made diagrams of the surrounding conditions, even to the location of the worker’s feet, at the time when efficient work was being done. We recorded the best we found by photography, at first with an ordinary camera,1 later with stereo- scopic cameras. These gave us detailed records in three dimensions. We used the cinematograph to record the motions being made against a cross- sectioned background, floor and workbench. This enabled us to record and follow the motions more accurately. We then invented a special microchronometer for placing in the picture, when we could find none in the market that could give us fine enough intervals to record the rela- tive times of different motions. This micromo- tion process, with its combination of the cinema- tograph, the special timing devices and the cross- sectioned screen, enabled us to obtain accurate and satisfactory records of methods used, except i See “ Bricklaying System,” Myron C. Clark Company Chicago, Ill.