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Scientific American, Vol. 10, No. 12 (1864) (1864)

leaf 4

An illustration from Scientific American, Vol. 10, No. 12 (1864), 1864, leaf 4
f the bar has been squared as it should next article. hold of the metal, just as a plane have been, it is only necessary to put a wrench on | iron does when pushed out too far. the square and apply force by hand as shown in the: IMPROVEMENTS AT THE WASHINGTON Navy Yarp,— A great deal depends on… … are not even they must be corrected as far as possible , drill should have but to be flagged with Belgian block pavement, which on the anvil. The best way to make such drills would | little clearance behind will give the place a neat and compact appear- be to devise a machine for this purpose, and…

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