is 250 yards down, lying at an angle of Improvement In Screw and Ratchet Wrenches, one foot to the yard, making the total perpendicular depth each stroke of the pump raises 39 gallons, and consequently Two views of an improved wrench are shown in the accom- from the surface to the lowest point 770… … side, with two of the teeth of the tent and comprehensiveness CHRISTOPHER'S IMPROVED WRENCH. of the exhibition, and from ratchet rack, when shut to place, ter strokes per minute for twenty-four hours. At full speed the the fact that in one of the prominent departments—that of where it is held by…
Combination · Claim · Purpose · Constructed · Manner · Patents · Arranged · Iclaim · Set · Tubular boilers · Nitro glycerin · Purpose set · Dated june · Purposes set · Turbine water · Manner set · Scientific American · Reissue received · Filing application
Internet Archive · Public domain (published before 1931). Free to use for anything.
