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US Patent: 252,248
Adjustable Tool
Albert A. Pease - Springfield, MA

USPTO Classifications:
30/266, 81/394

Tool Categories:


Not known to have been produced

Allen Webster
John S. Hull
F. L. Ourand
A. G. Heylman

Patent Dates:
Applied: Aug. 10, 1881
Granted: Jan. 10, 1882

Patent Pictures:
Albert A. Pease patent January 10, 1882
USPTO pdf tiff
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The patent describes a changeable pivotal bearing point for pipe tongs, pliers and similar tools. The pivot bolt has an internal spring which allows the two halves of the tool to be pulled away from each other sufficiently for the side with the slot to be moved from one pivot stop to another. The patent appears to be intermediate between Pease's Jan. 25, 1876 patent for multiple pivot pipe-tongs (no. 172,649), and H.S. Pullman's March 25, 1884 patent for movable pivot point pipe-tongs (no. 295,885).

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