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US Patent: 1,894,556
Device For Removing Screw Tops
Henry J. Edlund - Burlington, VT

USPTO Classifications:
24/524, 241/DIG.17, 279/110, 294/16, 81/128, 81/3.42

Tool Categories:
wrenches : jar wrenches


Edlund Co. - Burlington, VT

Lawrence O. Mankin

Patent Dates:
Applied: Mar. 18, 1932
Granted: Jan. 17, 1933

Patent Pictures: [ 1 | 2 ]
Henry J. Edlund patent January 17, 1933
USPTO pdf tiff
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A "T" handle turns a gear which moves clamping jaws that slide in a frame. The effective range between the jaws is 4 inches to one inch. Because of the gearing, turning force can only be applied to remove screw tops.

Marketed as the EDLUND TOP-OFF. Examples known with "Patent Pend." as well as with the patent number.

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