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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PAST, PRESENT, AND FUTURE OF MOTION STUDY g I
standard conditions, and standard methods of performing
the operations of the trades.
Conformity to these laws allows standard practice to be
attained and used. If the standard methods are deduced
before the equipment, tools, surroundings, etc., are stand-
ardized, the invention of these standard means is as sure
as the appearance of a celestial body at the time and place
where mathematics predicts that it will appear.
It is as well to recognize first as last that real progress
from the best present method to the standard method can
never be made solely by elimination. The sooner this is
recognized the better. Elimination is often an admirable
makeshift. But the only real progress comes through a
reconstruction of the operation, building it up of stand-
ardized units, or elements.
It is also well to recognize the absolute necessity of the
trained scientific investigator. The worker cannot, by him-
self, arrange to do his work in the most economical manner
in accordance with the laws of motion study. Oftentimes,
in fact nearly always, the worker will believe that the new
method takes longer than the old method. At least he
will be positive that many parts, or elements, of the pro-
cess when done under the new method take longer than
under the old style, and will not be in sympathy with the
scheme because he is sure that the new way is not so
efficient as his old way. All of which shows that the worker
himself cannot tell which are the most advantageous
motions. He must judge by the fatigue that he feels, or