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Spark-Extinguisher.

Description: Patent for a spark extinguisher "to prevent the burning of buildings and other combustible matter by steam engines" (lines 15-17).
Date: March 9, 1880
Creator: Blewett, George L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grinding Planer Knife.

Description: Patent for a new and improved attachment for grinders of wood-planing-machine knives. This design "may be securely attached to the frame of a wood-planing machine for grinding the revolving knives of the planer without removing the knives from its shaft or the shaft from its bearings upon the frame of the machine. . . . in so constructing and combining the parts of the improved device . . . it may be readily adapted to suit various-sized machines" (lines 10-22).
Date: November 9, 1880
Creator: Le Roy, Charles Jerome
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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