Wheeled Scraper. (open access)

Wheeled Scraper.

Patent for improvements on the scoop-like body of a wheeled scraper. Includes illustrations.
Date: June 24, 1909
Creator: Robbins, John Proctor
System: The Portal to Texas History
Refrigerating Apparatus. (open access)

Refrigerating Apparatus.

Patent for a new and improved refrigerator. This design "consists, essentially, in a series of vessels surrounded or enveloped by fibrous material, dipping into a water-vessel above, and serving to maintain a constant supply of water to the exterior of the vessels through capillary action, the water being caused to pass down in such quantity as to drip from the bottoms of the vessels and collect in a second tank supplying a second series of vessels in the same manner, and finally to collect in a suitable vessel below, intermediate filtering apparatus being provided or not, as required" (lines 9-20).
Date: January 1, 1884
Creator: Dodge, Frances A.
System: The Portal to Texas History