US Patent: 1,044,269 - Electrical heating unit


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US Patent: 1,044,269

Electrical heating unit

Patentee:

Clarence A. Shaler (exact or similar names) - Waupun, WI

USPTO Classifications:

123/146.50R, 219/251, 219/252, 219/255, 219/478, 219/486, 219/537, 219/552, 236/7

Tool Categories:

household : pressing irons

Assignees:

None

Manufacturer:

C. A. Shaler Co. - Waupun, WI

Witnesses:

Louis Schultz

Alvin J. Bronson

Patent Dates:
Applied:	Feb. 28, 1910
Granted:	Nov. 12, 1912

Patent Pictures:

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Description:

This is a generalization of the tire vulcanizer heating unit of patent 955,479, so that it can be used for sad irons and the like. This heater controls the temperature through discrete steps that avoid arcing at switch contacts and also avoids wide temperature swings.