Chain-Lock. (open access)

Chain-Lock.

Patent for an improvement in chain-locks. The improvement locks one end of a log chain to a car so that it cannot be accidentally released.
Date: October 1, 1918
Creator: Clarkson, Jay Caleb.
System: The Portal to Texas History
Hydraulic Motor. (open access)

Hydraulic Motor.

Patent for a new and improved hydraulic motor. This design "consists, broadly, in alternately directing a moving column of water or like fluid into two cylinders placed side by side, and containing working-pistons united at their outer ends to crank-arms connecting with the power-shaft and with a cam-wheel operating the cut-off mechanism" (lines 15-22).
Date: October 28, 1884
Creator: Woodburn, William W.
System: The Portal to Texas History
Cotton-Cleaner. (open access)

Cotton-Cleaner.

Patent for a cotton cleaner that provides "certain improvements in machines for cleaning lint cotton, and especially to provide a machine of this character which is intended to be arranged in the common lint flue, so as to occupy a position between the ordinary condenser in the lint room, and the nearest gin thereto" (lines 9-16). The cotton is thoroughly cleaned after leaving the gin, so that motes, stems, sticks, dry leaves, sand, &c. will be separated from the cotton.
Date: October 3, 1893
Creator: Rembert, Henry
System: The Portal to Texas History