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Updated: May 3, 2025
They are especially important from the fact that they are, as it were, a climax, demanding before they can be used almost all of the other elements of the mechanism; such as a planning department, accurate time study, standardization of methods and implements, a routing system, the training of functional foremen or teachers, and in many cases instruction cards slide-rules, etc.
One of them, for instance, is a specialist on the proper speeds and cutting tools to be used. He uses the slide-rules which have been above described as an aid, to guide him in obtaining proper speeds, etc. Another man analyzes the best and quickest motions to be made by the workman in setting the work up in the machine and removing it, etc.
By means of four quite elaborate slide-rules, which have been especially made for the purpose of determining the all-round capacity of metal-cutting machines, a careful analysis was made of every element of this machine in its relation to the work in hand.
Functional or divided foremanship and its superiority to the old-fashioned single foreman. The standardization of all tools and implements used in the trades, and also of the acts or movements of workmen for each class of work. The desirability of a planning room or department. The "exception principle" in management. The use of slide-rules and similar timesaving implements.
Its Pulling power at its various speeds, its feeding capacity, and its proper speeds were determined by means of the slide-rules, and changes were then made in the countershaft and driving pulleys so as to run it at its proper speed. Tools, made of high-speed steel, and of the proper shapes, were properly dressed, treated, and ground.
This is a good illustration of the fact that some way can always be found of making practical, everyday use of complicated scientific data, which appears to be beyond the experience and the range of the technical training of ordinary practical men. These slide-rules have been for years in constant daily use by machinists having no knowledge of mathematics. What speed shall I use?
Once in a while, he would say something into the mouthpiece of the phone. Two other nuclear engineers had similar books spread out on a desk in front of them; they were making notes and looking up references in the Nuclear Engineers' Handbook, and making calculations with their slide-rules. There was a huddle around the drafting-boards, where two more such books were in use.
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