Vehicle-Axle (open access)

Vehicle-Axle

Patent for vehicle-axle "with removable spindles which when they become worn may be easily and quickly removed and replaced by new ones." (lines 13-15); including illustration and instructions
Date: May 29, 1900
Creator: Andrews, William H.
System: The Portal to Texas History
Gymnastic Apparatus (open access)

Gymnastic Apparatus

Patent for "improvement in aerial revolving ladders for gymnastic purposes for use in theaters, circus-tents, etc." (lines 13-15) including instructions and illustrations.
Date: May 22, 1900
Creator: Delmore, George E.
System: The Portal to Texas History