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Chain Jack.
Patent for new and useful improvements in chain-jacks. "This invention aims to provide a chain-jack for lifting the boxes of axles, so that the bearings or brasses therefor can be readily replaced, and is designed especially for use in cases of hot boxes on railway-cars" (line 11-15).
Date:
February 18, 1902
Creator:
Phillips, Henry S.
System:
The Portal to Texas History