Measures to secure a patent for the above have been taken by R. M. Fenner, of Chitte-nango, N. Y. This improvement consists in the use of a metallic collar, which is inserted between the packing abd the cap, so that, as the latter is screwed down, it presses upon this collar which, acting upon the upper surface of f he packing causes it to spread laterally and fit steam-tight around the piston rod. Lake Superior will' soon be connected by an easy navigation with the other inland seas of that region. The contract for constructing the Sault Ste. Marie Canal has been awarded to Erastas Corning, of Albany. The work is to be completed within two years from the time of signing the contract.
This article was originally published with the title "Improved Stuffing Box" in Scientific American 8, 32, 252 (April 1853)