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Title: |
1894 Article-Hendey Machine Co., Metal Planing Machine |
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Source: |
Industry Magazine, Aug 1894, pg. 490 |
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Insert Date: |
12/8/2012 12:45:00 PM |
The machine shown in the drawing on the opposite page is typical of a tendency, or " trend," we may call it, in metal planing that began about twenty years ago, and has made slow but sure progress ever since, that of moving tools instead of moving the material.
An analysis of the two methods will show many advantages in favor of moving tools when large masses are planed, and as the original cost of machines, as well as rapidity of performance and perfection of the work, are all in favor of "moving tools," the wonder is that change to this system has not been more rapid.
An old rule is that when two masses are to be moved relatively, move the lightest one, holds good here, and when it comes to dragging tons of metal backward and forward on a table weighing many more tons, to plane off a few spots on the side or top, the operation seems ridiculous. We have not, however, space to discuss this subject here. It is suggested by the machine shown, which consists of a reciprocating tool-bar suspended and traversing laterally over a width of seven feet. The machine was at first constructed by the Hendey Machine Company for a special purpose, and, as in a good many other cases of the kind, its general utility was discovered by experience, and it is now made and classed as a standard implement.
The machine is made with massive proportions, as the drawing shows, and is provided with all the required adjustments for rapid working. The piece or mass to be planed is bolted down to the bed, the tools having a compound traverse motion over the top, and are, we imagine, a good deal more rigidly supported than in a common planing machine. The weight of the one shown is 25,000 pounds. It is proposed to illustrate in a future number some other special machine tools made by this Company. |
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1894 Hendey Machine Co., Metal Planing Machine
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