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US Patent: 810,543
Clamp
Patentee:
Herman A. Knoke (exact or similar names) - Chicago, IL

USPTO Classifications:
269/174, 269/220, 269/221

Tool Categories:
work holding : clamps : hand screws

Assignees:
None

Manufacturer:
Superior Clamp Mfg. Co. - Chicago, IL
Handy Manufacturing Co. - Chicago, IL

Witnesses:
W. B. Davies
J. H. Landes

Patent Dates:
Applied: Jan. 25, 1905
Granted: Jan. 23, 1906

Patent Pictures: [ 1 | 2 | 3 | 4 | 5 | 6 ]
Image (C) and courtesy of Don Eby
USPTO (New site tip)
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Report data errors or omissions to steward Russ Allen.
"Vintage Machinery" entry for Handy Manufacturing Co.
Description:
Quick release mechanism for hand clamps. Found marked along with Knoke's earlier patent, 781,958. Mfg example has the second jaw adjustment on the end of each jaw instead of within the jaw body as depicted on the patent drawing. Jaws on the example are approximately 11 inches and are also marked W.MFG.CO. - likely either indicating the owning woodworking shop or possibly the mfg of the jaws for Handy. A Herman A. Knoke is listed in the 1900 Chicago directory with the profession of "saloon" and later as a machinist in 1910.

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