New York [etc.] Simmons-Boardman Pub. Co. [etc.] · leaf 41
NEW RIG FOR COPYING WAY-BILLS. In the other apparatus, shown by Fig. 2, the recordis obtained upon a disc instead of a cylinder, and thisdisc has a regular movement imparted to it by clock-work instead of being moved intermittently at eachoscillation of the spring. It consists, as will he seen,of a…
Railroads · Railroad cars
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
