UNT Libraries Government Documents Department - 11 Matching Results

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Air-Compressor.

Description: Patent for a more efficient air compressor with high and low pressure chambers formed of mating sections that can be detached to make repairs to the piston as necessary.
Date: April 1, 1913
Creator: Murphy, Edward
Item Type: Refine your search to only Patent

Juice-Extractor

Description: Patent for an improved juice extractor including a way to remove the strainer for easy cleaning or replacement, a swivel for the handle, and an overall more efficient device.
Date: March 4, 1913
Creator: Williams, Winfield B.
Item Type: Refine your search to only Patent

Moldboard

Description: Patent for improvements in plow mold-boards, specifically for shedding sticky soil, and includes illustrations and description.
Date: April 8, 1913
Creator: Martin, William A. & Coleman, Robert J.
Item Type: Refine your search to only Patent

Vending-Machine

Description: Patent for improvements in vending machines including the simple and efficient delivery of vending articles and improvement in separation of articles served.
Date: August 5, 1913
Creator: Harris, Irvin F.
Item Type: Refine your search to only Patent
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