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US Patent: 87,133
Wrench
Improved Mode of Constructing Wrenches, or Levers for Turning Taps
Patentee:
Benjamin F. Bee - Harwich, MA

USPTO Classifications:
408/240, 81/175

Tool Categories:
wrenches : tap wrenches and die stocks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Wm. H. Underwood
Geo. H. Munsell

Patent Dates:
Granted: Feb. 23, 1869

Patent Pictures:
Benjamin F. Bee Pat. Feb. 23, 1869
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Description:
The sliding blocks in this tap wrench have notches with unequal sized sides. The effect of this design is that the wrench will firmly contact two corners and two opposite sides of the square head of any tap or drill within its capacity and hold the tool in the center of the adjustable opening.

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