Railroad-Track Lifter.
Description:
Patent for improvement in railroad-track lifters by using “the combination of a base, a upright, a lever and two pawls engaging notches of the upright” (lines 97-99) and “hand mechanism for operating the pawls,” (lines 1-2, p. 2) for easily raising sections of railway-track. Illustration is included.
Date:
March 31, 1891
Creator:
Brown, Hiram David
Item Type:
Refine your search to only
Patent