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Scientific American, Vol. 41, No. 4 (1879) (1879)
leaf 7
rmously greater than any fur- nace heat here that they can scarcely be made the subjects index, as shown in ourillustration, any deviation or any per- post, that the point of an ordinary turning tool does. The of comparison. Other considerations, on which we can- ceptible change in the position of… … the bearing of the 20, current volume of: spindle perfectly APPARATUS FOR GEAR CUTTING, ScrentTiric AMERICAN. © 1879 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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