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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MOTION STUDY
mortar for the end joint can be done quickest if it is done
in the direction of the next motion, such, for example, as
the next motion that puts the trowel in the position to
cut off the hanging mortar.
The sequence of motions in bricklaying, that determines
when the particular motion is to be made that puts the
mortar in the end joint, depends upon whether the pick-
and-dip” or the “stringing-mortar” method is used.
When the motions are made in the correct sequence,
many of them can be combined so that two, and in some
cases three, motions can be made as one motion, in but
little more time than is required for one motion.
Example. — Cutting off mortar, buttering the end of the
laid brick, and reaching for more mortar all as one motion,
in the “ pick-and-dip ” method.
Speed
Usually, the faster the motions, the more output. There
are other advantages to speed of motions besides the fact
that they require less time. Speed increases momentum,
and this momentum may be utilized to do work.
Example. — The ir omentum of the brick helps to shove
the mortar better into the joint.
Again, high outputs are generally the result of the
habit of speed in motions. Habits of speed are hard to
form, and they are hard to break.
Next to fewest motions, speed of motions is the most
important factor of high record of outputs.