Resource Type

Month

Envelop-Seal. (open access)

Envelop-Seal.

Patent for an envelop seal composed of a metal piece with two arms, which are threaded through a hole in the envelop and pressed down into the sticky gum surface on the inside of the envelop flap.
Date: March 9, 1909
Creator: Bennick, Henry
System: The Portal to Texas History
Cotton-Chopper. (open access)

Cotton-Chopper.

Patent for a cotton-chopper meant to be the most simply constructed. The hoes are attached to a rotating cylinder in the center of the frame, and the hoes rotating is what chops the cotton.
Date: March 9, 1897
Creator: Hopkins, Benjamin F.
System: The Portal to Texas History