A New or Improved Method for Removing Soot from the Passages along which the Smoke Passes from a Fireplace to the Atmosphere.

摘要

20,401. McGregor, J. Sept. 28. Cleaning pipes and tubes.-Relates to a method of using zinc to remove soot from flues, chimneys, and the like. Zinc in sheet or any convenient form is placed in a clear fire, and the draught is regulated so that air is compelled to pass mainly or only through the fuel.