4 Matching Results
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Well-Drilling Device.
Patent for adding a drilling stem to a well-drilling device, with illustration. This invention will improve operation of devices.
Date:
February 10, 1920
Creator:
Church, Walter Lee
System:
The Portal to Texas History
Window Shade
Patent for "Improvements in Window-Shades" (line 6) including illustrations.
Date:
February 10, 1920
Creator:
Johnson, Charles G.
System:
The Portal to Texas History
Machine for Extracting Liquid from Pulpous Material Machine
Patent for Extracting Liquid from Pulpous Material Machine that extracts oils and liquids from the remaining pulpous material from the process of grinding and cooking cotton. The main goal of this machine is to extract oil from cotton seed meal.
Date:
February 10, 1920
Creator:
Kinney, William L. & Cagle, Wiiliam E.
System:
The Portal to Texas History
Combination Swing and Couch.
Patent for a piece of swinging furniture for infants and small children which can be converted between a seat and a couch. This device is designed to be collapsed and folded for easy storage, as well as to be cheap and easy to manufacture. Illustrations included.
Date:
February 10, 1920
Creator:
McDevitt, Leslie I.
System:
The Portal to Texas History