Articulating Plate (open access)

Articulating Plate

Patent for "new and useful articulating plate" (lines 5-6), including illustration and instructions.
Date: April 11, 1900
Creator: Driskill, T. F.
System: The Portal to Texas History
Well Bucket (open access)

Well Bucket

Patent for Improvements in well buckets. The bucket has an inlet valve at the bottom and an air escape valve at the top that permits air to escape freely while preventing the entrance of dirt and extraneous matter to the interior of the bucket.
Date: April 11, 1922
Creator: Reese, Samuel L. & Reese, Samuel L.
System: The Portal to Texas History
Gas Producer. (open access)

Gas Producer.

Patent for improvements to gas producers of the type in which combustible gases are evolved from coal, lignite, etc., during the incomplete combustion thereof.
Date: April 11, 1922
Creator: Johnston, Horace G.
System: The Portal to Texas History