Stove Pipe Damper.
Description:
Patent for a new and improved stove-pipe damper. This design consists in "[t]he combination, with a damper-blade with a spindle rigidly attached thereto and having at one end a cylindrical pivot projecting beyond the periphery of the blade, and at the opposite end a screw projecting beyond said periphery, of a supporting-ring in which the projecting ends of said spindle are journaled, the bearing of the cylindrical end of said spindle being in an inwardly-bent portion of said supporting-ring" (…
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Date:
April 19, 1887
Creator:
Lederle, Edward Emil
Partner:
UNT Libraries Government Documents Department