Resource Type

Improvement in Journal Boxes. (open access)

Improvement in Journal Boxes.

Patent for axel shaft oil lubrication system that acts as a reservoir and saves the oil lubrication materials to be used repeatedly without waste.
Date: April 3, 1873
Creator: Morris, Joseph R.
System: The Portal to Texas History
Improvement in Carriage-Axles. (open access)

Improvement in Carriage-Axles.

Patent for improvements to carriage axles which include the addition of a sleeve, bearing, and linch-pin device.
Date: June 13, 1871
Creator: Wagner, Ernest Friedrich
System: The Portal to Texas History