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US Patent: 466,678
Handle For Tools or Other Implements
Patentee:
Charles H. Gurney (exact or similar names) - Chicago, IL

USPTO Classifications:
76/101.1, 81/177.1, 81/436

Tool Categories:
industrial tools : tool handles
screwdrivers : screwdriver handles

Assignees:
Capitol Manufacturing Co. - Chicago, IL

Manufacturer:
Capitol Manufacturing Co. - Chicago, IL
Whitman & Barnes Manufacturing Co. - West Pullman, IL

Witnesses:
Geo. W. Rea
Robert Everett
F. E. Grant
Fred J. Leonard

Patent Dates:
Applied: Mar. 11, 1890
Granted: Jan. 05, 1892

Patent Pictures:
Charles H. Gurney patent January 5, 1892
USPTO (New site tip)
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Description:
A rod with flattened and tapered end is formed into a loop with the flat tapered section twisted into a section of the rod, forming a loop handle. The specifications describe this as a "duplex spiral twist."

The patent matches screwdrivers advertised by the company to which it was assigned, and successor firms.

The same "duplex spiral twist" appears in design patents D19,980 and D19,981 in a trap door handle and tack lifter.

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