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US Patent: 1,028,720
Marking-Gage or Tram
John W. Hasburg - Chicago, IL

USPTO Classifications:

Tool Categories:
layout tools : compasses : trammels
layout tools : marking gauges : curve marking gauges


John W. Hasburg Company - Chicago, IL

W. Linn Allen
Mary F. Allen
Leo J. DuMais
T. N. Daggett

Patent Dates:
Applied: Jan. 27, 1912
Granted: Jun. 04, 1912

Patent Pictures: [ 1 | 2 | 3 ]
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This is a simple marking gage and trammel designed to assist in decorating china. It was produced as the "Hasburg's New Keramic Gauge" by The John W. Hasburg Company, a well-known supplier of ceramic paints and supplies at the time.

A later version of this tool slightly changed the way the marking point was locked in-- the locking nut moved from the end of the arm to the side. This version was marketed as "Hasburg's New 1922 Keramic Gauge", but was otherwise unchanged.

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