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US Patent: 93,937
Improved centring-awl
Daniel A. Wilcox - Woodstock, VT

USPTO Classifications:
30/358, 30/368, 33/574, 69/20

Tool Categories:
layout tools


Not known to have been produced

John W. Nutting
John C. Nutting

Patent Dates:
Granted: Aug. 17, 1869
Antedated: Feb. 17, 1869

Patent Pictures:
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Daniel A. Wilcox and one Nathan Woodbury applied almost simultaneously for a patent on the same idea. The following is taken from the 1869 "Report of the Commissioner of Patents": "The fact that are beyond dispute in this case are, that Wilcox had in his mind the idea of a tool, consisting of an outer case with a beveled point to enter a countersink, and enclosing an awl for marking the center. He says (and is supported by Clapp) that he proposed that the awl should be a sliding rod provided with a spring to retract it after it had performed its work. Woodbury denies the spring and the sliding-rod, but admits the beveled point and the centering awl.

"It is also evident that Wilcox went to Woodbury to have such a tool made as he had invented, and that, until this tool was described by Wilcox, Woodbury had never thought of such a thing, although he says he told Wilcox that he had not thought of it 'lately;' which, if he really did say it, sufficiently illustrates his character. He would have us believe that, never having thought of it before, he invented it on the spot, during his conversation with Wilcox. This is improbable, and taken in connection with the admitted facts, is not entitled to credit. ... I am satisfied that this invention belongs to Wilcox, and therefore reverse the decision of the board of examiners-in-chief" (who had apparently decided in favor of Woodbury).

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