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US Patent: 481,515
Marking-Gage
Patentee:
Justus A. Traut - New Britain, CT

USPTO Classifications:
33/44

Tool Categories:
layout tools : marking gauges
layout tools : marking gauges : butt gauges

Assignees:
The Stanley Rule & Level Co. - New Britain, CT

Manufacturer:
The Stanley Rule & Level Co. - New Britain, CT

Witnesses:
Robert N. Peck
W. J. Worden
Henry L. Reckerd
Emma G. Fowler

Patent Dates:
Applied: Dec. 22, 1891
Granted: Aug. 23, 1892

Patent Pictures: [ 1 | 2 ]
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Description:
Justus Traut is back, with another classic new idea in butt gages. The breakthrough on this gage was to put a thin metal plate on the end of the bar, and have a pair of points reference off it. This allows the door jamb to be marked off the outside of the plate and the door off the inside, leaving a gain equal to the thickness of the plate. This simple design worked quite well, making these very popular tools.

This new feature itself was a great advance in butt gages, but Traut went a few steps further. The nested arm that carries the marking points can extend past the end of the plate, allowing this tool to be set up as a mortise gage. It also carries a small nicker iron that references off the back of the head, which can be used for marking hinge thickness or other small distances

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