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Show TH machine-shop b guesswork PRINCIPLE hav an O SCIENTIFI practicall withou all bee th study of the art of cutting metals MANAGEMEN speede knowledg 5 by their make obtaine throug In the machine-shops systema tized by us we have found that there is not one machine in a hundre which is speeded by its makers at anywhere near the correct cuttin speed So that, in order to compete with the science of cuttin metals, the machinist, before he could use proper speeds, woul first have to put new pulleys on the countershaft of his machine and also make in most cases changes in the shapes and treatment o his tools, etec. Many of these changes are matters entirely beyon his control, even if he knows what ought to be done If the reason is clear to the reader why the rule-of-thumb knowledge obtained by the machinist who is engaged on repeat work canno possibly compete with the true science of cutting metals, it shoul be even more apparent why the high-class mechanie, who is calle upon to do a great variety of work from day to day, is even less abl to compete with this science The high-class mechanic who does different kind of work each day, in order to do each job in the quickes time, would need, in addition to a thorough knowledge of the ar of cutting metals, a vast knowledge and experience in the quickes way of doing each kind of hand work And the reader, by calling t mind the gain which was made by Mr. Gilbreth through his motio and time study in laying bricks, will appreciate the great possibilitie for quicker methods of doing all kinds of hand work which lie befor every tradesman after he has the help which comes from a scientifi motion and time study of his work For nearly thirty years past, time-study men connected with th management of machine-shops have been devoting their whol time to a scientific motion study, followed by accurate time stud with a stop-watch," of all of the elements connected with th When, therefore, the teachers, who form one secmachinist's work tion of the management, and who are cooperating with the workingmen, are in possession both of the science of cutting metals and o the equally elaborate motion-study and time-study science connecte with this work, it is not difficult to appreciate why even the highes class mechanic is unable to do his best work without constant dail And if this fact has been made clea assistance from his teachers to the reader, one of the important objects in writing this paper wil have been realized It is hoped that the illustrations which have been given make i apparent why scientific management must inevitably in all case produce overwhelmingly greater results, both for the company an |
