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US Patent: 556,646
Device for detecting short circuits
Patentees:
Charles E. Skinner (exact or similar names) - Allegheny, PA
Charles F. Scott (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
324/545, 324/765.01

Tool Categories:
electrical devices

Assignees:
Westinghouse Electric & Mfg. Co. - Pittsburgh, PA

Manufacturer:
Westinghouse Electric & Mfg. Co. - East Pittsburgh, PA

Witnesses:
Harold S. MacKaye
James W. Smith

Patent Dates:
Applied: Dec. 31, 1892
Granted: Mar. 17, 1896

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Westinghouse Electric & Mfg. Co.
Description:
This patent seems to be the genesis of the "growler", a device used to test motor windings and other electrical coils for shorted windings.

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