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Title: |
1866 Article-American Saw Co., Emersons Saw Swage |
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Source: |
Scientific American, V.15 (NS), 30 Jun. 1866, pg 34 |
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Insert Date: |
9/19/2023 1:29:57 PM |
EMERSON’S SWAGE FOR SPREADING AND SHARPENING SAW TEETH.
No tool in the mechanic arts is more useful than the saw, and any improvement in the saw, or in the manner of keeping it in order, will be of interest.
The new tool here illustrated is intended to spread the points of the teeth, bring them to a proper cutting edge, and make them all of uniform width at the same operation. Fig. 1 shows the body of the swage or upset; Fig. 2 the sliding swage pin; Fig. 3 the saw tooth; Fig. 4 the long jaw or guide of the swage; Fig. 5 shows a slot to allow the swage to be used on a fine-toothed saw.
The faces of the guide, 4, and the sliding pin, 2, are hardened. In the pin, 2, is a slot cut the exact shape and width of the point of the tooth as it should be. The sliding pin, 2, is made to fit exactly in the swage, so that the point of the tooth coming in the joint will be left with a proper cutting edge without filing. By placing the point of the tooth, 3, in the die, as shown in the engraving, and striking on the end of the swage with a light hammer, repeating the blows till the point of the tooth is brought to a proper width and shape, a better cutting edge is obtained than can be made by filing.
This simple, cheap, and effective tool was patented through the Scientific American Patent Agency, June 6,1866 (Patent: 55,262). For further information address the American Saw Company, sole manufacturers, No. 2 Jacob street, New York, or Trenton, N. J.
https://datamp.org/patents/displayPatent.php?number=55262&typeCode=0 |
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1866 American Saw Co., Emersons Saw Swage
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