atic Foundations. one half inch in diameter, with other sizes in proportion- General W. S. Smith, of Maywood, 111., recently read be- We present herewith an engraving of the Lewis bolt Experiments at the Cincinnati Exposition proved that one fore the American Society of Civil Engineers, in this… … for taking up the wear of centers, and the putdown; usually, cementfive feetln depth THE LEWIS PATENT BOLT HEADING MACHINE. hook, S, serves to connect the grip and ^will seal the pile, the remainder being add- side levers, and thus insures the opening of the dies. added in the open air. rate of…
Patents · Improved · Iron · Machine · Consists · Scientific American · Address · Upper side · Steam engine · Address munn · Horse power · Sheet metal · Accelerating force · Motive force · Ovarian egg · Trade catalogs
Internet Archive · Public domain (published before 1931). Free to use for anything.
