Inside Out Library · Explore
Scientific American, Vol. 62, No. 16 (April 1890) (1890)
leaf 3
arted to the spring, F, lifts the bolt behind the catch plate and by Messrs. Reuben Durrin and Rosecrans Sheldon, of holds the drawer securely locked. Streator, 111. To the under side of the stand are hinged For further information in reference to this inven- two bell crank spring-pressed levers,… … of order. LAWRENCE'S LOCK, DURBIN & SHELDON'S TYPE-WRITER ATTACHMENT. © 1890 SCIENTIFIC AMERICAN, INC.Arc · Apparatus · Gas · Munn · Scientific American · Patents · Gravity cells · Express money · Horse power · American supplement · Sugar maple · Sewing machine · Electric light · Phonograph cylinder · Small pulley
Internet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 62, No. 16 (April 1890)
More like this
