Motion Study
A Method for Increasing the Efficiency of the Workman
Forfatter: Frank B. Gilbreth
År: 1911
Forlag: D. Van Nostrand Company
Sted: New York
Sider: 116
UDK: 658.54 Gil Gl.
DOI: 10.48563/dtu-0000026
With an Introduction by Robert Thurston Kent Editor of "Industrial Engineering".
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CHAPTER IV
VARIABLES OF THE MOTION
A discussion of variables of the motion opens up a field
so large that it is only possible here to attempt to show
the method of investigation, and to show that each vari-
able is a necessary factor in making motions standard,
leaving to the universities and to properly created and
equipped bureaus of the national government the task of
reducing motion study to an exact science.
Acceleration
In considering acceleration of speed as an element of
any motion, we must determine:
1. The amount of acceleration that it is possible or
economical to obtain.
2. The means by which the acceleration can be obtained.
3. The effect of the acceleration on
a. Economy in time required to make the motion.
b. Economy in time required for rest to overcome
the fatigue of having made the motion.
Examples. — 1. Laying brick on a wall from a floor,
from the height of the floor level up to three feet eight
inches high above the floor, can be done with greatest speed
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