Grinding-Machine (open access)

Grinding-Machine

Patent for "a machine chiefly adapted for making or grinding molding bits or knives with either a straight or irregular cutting-edge; but my invention is also adapted for making and grinding other edged tools and implements" (lines 13-18).
Date: June 14, 1892
Creator: Ross, William
System: The Portal to Texas History
Door Check. (open access)

Door Check.

Patent for a new and improved door-check. This design "has relation to door-checks . . . for retaining a door or gate in any desired opened position; and it has for its objects to provide such a door-check in which the holding or clamping mechanism of the check is operated automatically from the latch or knob of the lock, to provide a strong brace for retaining the door in its adjusted position . . . a bolt casing slides upon a rail carried at the upper edge of the door and has a bolt operated from the lock of the door for engaging the said rail, and in which a brace or arm is pivoted to the door-frame" (lines 8-26).
Date: August 14, 1888
Creator: Scarborough, William Daily
System: The Portal to Texas History
Cotton Chopper. (open access)

Cotton Chopper.

Patent for a new and improved cotton chopper. This design consists "of the wheel having the series of arms, the V-shaped fenders secured thereto, the rim having offsets and tapering side edges, the hoe-bars having rollers, and overlapping hoes at their outer ends" (lines 73-78).
Date: May 14, 1889
Creator: Woodbury, Amasa O.
System: The Portal to Texas History