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Boat-Propeller

Description: Patent for a boat propeller that runs more efficiently by turning in such a way that the load of water on the propeller is taken off when its blades are going up.
Date: July 16, 1912
Creator: Reames, Charles H.

Tie-Plate

Description: Patent for a tie plate that sticks firmly to the ties, keeps out moisture, and is lighter than other tie plates.
Date: July 16, 1912
Creator: Walton, Jay W. & Dayton, William H.

Extensible Ladder.

Description: Patent for a new and useful Extensible Ladder. The improved Extensible Ladder is comprised of a ladder on each side of the structure, extendable platform, and guard rails.
Date: July 9, 1912
Creator: Putman, Lewis S.

Magazine-Hammer

Description: Patent for a new Magazine-Hammer. The new and improved Magazine-Hammer consists of a setting hammer head, carrying handle, feed device for nails, tacks, or like fasteners, discharge device, and mounted setting tube. This Magazine-Hammer improvement allows the operator to drive fasteners with one hand and manipulate an object with one free hand.
Date: July 2, 1912
Creator: Smith, Oliver J. A.