If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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RE10,145
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Jul. 04, 1882
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Adjustable Socket Wrench
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Felix Chantrell |
Bridgeport, CT |
The adjustable socket works by a central left- and -right hand threaded bolt with a central knurl. Produced as a solid "T" handle socket wrench - known examples marked "PATD. FEB. 28 82 HAZELTINE & CHANTRELL BRIDGEPORT" -- or as a brace wrench with a socket using this design. In 1900, SMITH & EGGE was advertising the wrench.
The adjusting screw with left- and right-hand threads also appears in John Chantrell's bit brace (patent no. 284,276). |
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696,405
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Apr. 01, 1902
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Clamping Wrench
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Richard A. Breul |
Bridgeport, CT |
The movable jaw has an internal clamping pawl, and a clamping set screw with sliding "T" handle. Tightening the clamping set screw secures the adjustment, and "raises" the jaw tip to more firmly grip the work piece.
A supplemental pipe gripping piece can clamp on to the movable jaw.
Produced by Smith & Egge Mfg. as the "GIANT."
A stop on the end of the handle bar prevents the jaw from sliding off when the clamping set screw is loosened. |
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1,058,223
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Apr. 08, 1913
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Clamping Appliance
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Peter Dosch |
Stratford, CT |
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Clamping Appliance
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Charles R. Dosch |
Stratford, CT |
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1,114,666
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Oct. 20, 1914
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Punch
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John A. Anderson |
Bridgeport, CT |
The patent is for the "in-line" body and sliding latch for a rotating head drive punch.
Advertised as the SEMCO. |