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Air-Regulating Attachment. (open access)

Air-Regulating Attachment.

Patent for a new attachment in a carburetor that regulates air through suction and has a valve to release pressure from an engine, including illustrations.
Date: May 14, 1918
Creator: Kimbler, Henry R.
System: The Portal to Texas History
Tandem-Roller Attachment. (open access)

Tandem-Roller Attachment.

Patent for improved, simply constructed, and high-efficiency tandem roller attachments with the purpose of, "preventing surface waving of roadways," (lines 18-19) including illustrations.
Date: May 14, 1918
Creator: Brown, Frank O.
System: The Portal to Texas History