This system will be undergoing maintenance June 27th between 9:00AM and 12:00PM CDT.
Clamp.
Description
Patent for a clamp "for use in in connection with hoisting-tackle for raising or lowering well-pipes..."(lines 9-10) that has one side attach to the pipe and the other side be releasable from the pipe.
Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.
Descriptive information to help identify this patent.
Follow the links below to find similar items on the Portal.
Description
Patent for a clamp "for use in in connection with hoisting-tackle for raising or lowering well-pipes..."(lines 9-10) that has one side attach to the pipe and the other side be releasable from the pipe.
Physical Description
[1], 2 p. : ill. ; 23 cm.
Notes
"Application filed January 19, 1907. Serial No. 353,161."