Shaping machines are divided into two classes, one modification with a lateral feed of the tools and cutter bar, technically called "travelling head machines," the other class with a feed motion of the table which supports the work, called table-feeding machines. The first modification is adapted for long pieces to be planed transversely, such as toothed racks, connecting rods, and similar work; the second class to shorter pieces where much hand adjustment is required.
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I said it quite innocently, without any other desire beyond that of taking off the edge of my really trying hunger. But the effect of my question was surprising indeed. He looked at me dumbfounded, and asked:The tools employed for cutting screw threads constitute a separate class among the implements of a fitting shop, and it is considered best to notice them separately.Thats a big honor, commented Larry.
