Inside Out Library · Explore
Scientific American, Vol. 62, No. 22 (May 1890) (1890)
leaf 3
es, dress the inventor as above. the upper surfaces being concaved, and the panesbeing which are tubular, and preferably round at their outer »m»——— AN INDEX PLATE FOR GEAR-CUTTING MACHINES. and flattened at their inner ends. The felly is made of An indicator attachment designed to be readily ap- a… … possibilities. SCHIRK'S INDEX PLATE FOR GEAR-CUTTING MACHINES. KIDD'S ORE CONCENTRATOR. © 1890 SCIENTIFIC AMERICAN, INC.Munn · Water · Adapted · Rice · Patents · Scientific American · Tallapoosa · Wire cloth · Typewriting machine · Stained glass · Red scale · Illustration represents · Lead strips · Carbonic acid · Fire alarm · Express money
Internet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 62, No. 22 (May 1890)
More like this
