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US Patent: 499,742
Flange Wrench
Improvement in Adjustable Flange-Wrenches
Julius W. Kellam - Brooklyn, NY

USPTO Classifications:

Tool Categories:
wrenches : flange wrenches

Minnie E. Kellam - Brooklyn, NY

Eaton, Cole and Burnham Co. - Bridgeport, CT

J. M. Le Roy
F. P. Smith
Lillie Hanna

Patent Dates:
Applied: Mar. 02, 1893
Granted: Jun. 20, 1893

Patent Pictures: [ 1 | 2 ]
Julius W. Kellam patent June 20, 1893
USPTO pdf tiff
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This is a fixed-size version of Kellam's adjustable size flange wrench (patent no. 487,331). In this version, the gripping surface of the movable jaw is a roller cam which can be positioned for tightening or loosening. The jaw is moved into engagement by a cam lever. The "V" shaped jaw is firmly fixed to the handle rather than attached by a pivot bolt.

The KELLAM FLANGE WRENCH produced by Eaton, Cole & Burnham used a screw-adjusting slide rather than a cam lever for the grip tightener, and a second screw-adjustment to set the size.

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