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US Patent: 433,928
Wrench Tightener
John W. Bess - Brilliant, OH

USPTO Classifications:
254/109, 81/52

Tool Categories:
wrenches : wrench components : wrench handle components


Not known to have been produced

W. S. Duvall
John Imirie
Geo. W. Everson
Nicholas Schiffler

Patent Dates:
Applied: Mar. 22, 1890
Granted: Aug. 12, 1890

Patent Pictures:
John W. Bess patent August 18, 1890
USPTO pdf tiff
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An arc-shaped track with rack teeth facing two directions, and a ratcheting lever mechanism, for the purpose of pulling wrenches to tighten and loosen oil well drill stems and sucker rods. There are drain holes between the rack teeth to prevent water from collecting and freezing.

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