Antifriction Device For Sucker Rods Or The Like
Description:
Patent for an antifriction-roller (part of a pumping mechanism) with a mounting that can be manufactured at a low cost, "quickly and readily applied to a rod at any point....and prevent it from bending...and, furthermore, interpose a minimum obstruction to the flow of the liquid in the casing" (lines 17-25)
Date:
March 25, 1902
Creator:
Black, William L.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department