54}4". But if a thin ple, with single in place of double lens objectives. Dr. plate of mica or other biaxial mineral is placed in the path Schroeder has been very successful in the manufacture of of this ray it will not only be rendered visible, but be beau- lenses; but his proposal failed to… … in the lid, and is rotated by a horizontal shaft through beveled gear wheels. Wings, B, are attached to the vertical POLAKIZING APPARATUS shaft and agitate the contents of the kettle. The lower end of the vertical shaft is boredaxially, and diagonal channels lead ELECTRIC SOLDERING IRON. from the…
Patents · Patented · Iron · Manufacture · Winkle · Illustrated · Scientific American · Glass · Patent office · Carbolic acid · Cast Iron · Test tube · Letters patent · Radiant energy · Wood working · Iron columns · San Francisco
Internet Archive · Public domain (published before 1931). Free to use for anything.
