Measuring and Proportioning Machine. (open access)

Measuring and Proportioning Machine.

Patent for "a device by which the mixing of various ingredients in certain desired proportions may be easily and accurately accomplished" (lines 8-11). It is meant for industrial measuring.
Date: May 5, 1896
Creator: Collins, Alonzo G.
System: The Portal to Texas History
Lifting-Jack. (open access)

Lifting-Jack.

Patent for "an improved lifting-jack designed expressly for track-levelers, although the construction may be varied for other purposes." (Lines 9-12) Includes instructions and illustrations.
Date: May 12, 1896
Creator: Arnold, Raiford A.
System: The Portal to Texas History