Downing's Improved Battery

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Downing's Improved Battery
Medical Claims Healing via galvanic electricity
Creator(s) Joseph M. Browning
Vendors Downing Electric Co.

Downing's Improved Battery is an electro-therapeutic medical medallion in the shape of a horse-shoe, patented in Canada on 13 October 1881, by Joseph M. Downing,[1] and sold through Downing Electric Co.


The design of Downing's Battery is described as "composed of a copper ring surrounding a central zinc disc, said copper ring having radial arms, the spaces between which are filled up with zinc annular sections, and the whole enclosed within a horse-shoe rim."[2]


  1. Downing, Joseph M. Electro-Galvanic Battery For Medical Purposes. Joseph M. Downing, assignee. Patent CA13548. 13 Oct. 1881. Print. <>
  2. "No. 13,548. Electro-Galvanic Battery for Medical Purposes." The Canadian Patent Office Record and Mechanics' Magazine Nov. 1881, p. 268.