Enggren lightning rod insulator

Patent Claims

Issued from the United States Patent Office

FOR THE WEEK ENDING MAY 24, 1859.

[Reported officially for the Scientific American.

***Circulars giving full particulars of the mode of applying for patents, size of model required, and much other information useful to inventors, may be had gratis by addressing MUNN & CO., Publishers of the SCIENTIFIC AMERICAN, New York.

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DEVICE FOR SECURING LIGHTNING RODS - John A. Enggren, of Brooklyn, N. Y. : I claim an insulator for lightning rods composed of a glass standard, A, a spring clasp, C, having shanks, i, and shoulders, j, and otherwise made as shown and described.

[This invention consists in having metal caps fitted on or over the ends of the glass insulators, the caps being recessed vertically to receive the conductor, and notched at each side to receive the shanks of a spring clasp which is provided with anchors or shoulders, one at each end. The shoulders pass into recesses in the ides of the insulators and are retained therein by the elasticity of the shanks of the clasps, the latter retaining or holding the conductor in the caps and both the caps and conductor to the insulator.]

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