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Electrical Coil Patent Exhibit – Court Evidence

Drawing
This document is a technical drawing of electrical coils, likely used in patent litigation or engineering design documentation. It includes three labeled figures (Fig. 4, Fig. 5, and Fig. 6) that depict variations of a coil-based electrical component, possibly illustrating induction or electromagnetic properties. The red shading around the coils suggests magnetic field interactions.
Electrical Coil Patent Exhibit – Court Evidence picture number 1

The document is associated with a legal case between T. H. Electric Co. and Nassau Electric R.R. Co. The inscription at the top refers to it as a "Complainant's Exhibit" in a legal dispute. The date Feb. 21, 1899, suggests this was part of a patent case or industrial competition regarding electrical technology. Given Lewis H. Latimer’s known expertise in electrical innovation and patent documentation, this may have been part of an effort to protect or challenge a particular invention.

Latimer Family Papers (1870-1996 ) [QPL Full Collection]

Printed text: U.S.C. Ct. E.D. of N.Y. T. H. Electric Co. vs Nassau Elec. R. R. Co. Figures labeled: Fig. 4, Fig. 5, Fig. 6 Handwritten annotations: "Complainant’s Exhibit" "Bentley Figures 1-6. B.C.D. Elec. Dec. Feb. 21, 1899." "Lithograph from drawing by L. H. L."