Resource Type

Month

Vehicle-Jack. (open access)

Vehicle-Jack.

Patent for a vehicle-jack that can raise and lower all of the supporting legs using a single lever, as well as lengthen and shorten the jack at will to adapt it to vehicles of different sizes.
Date: June 16, 1914
Creator: Douglass, John A.
System: The Portal to Texas History
Hay Press (open access)

Hay Press

Patent for a hay press. "This invention has relation to presses having a rebounding and intermittently-operated plunger, and aims to provide a novel and positive actuating means for utilizing the power applied to the sweep in any accustomed manner (line 9-15) illustrations included.
Date: June 16, 1903
Creator: Ziller, August & Bouchard, Henry
System: The Portal to Texas History