Nikola Tesla U.S. Patent 685,956 - Apparatus for Utilizing Effects Transmitted through Natural Media Patent Wrapper Page 34

488 3 a distant source, the combination of a storage device, a battery or like independent source of energy for charging the same, a sensitive device adapted to have its resistance varied under the influence of the effects or disturbances, a circuit connected with the terminals of the storage device, a transformer having its primary in said circuit and a receiver in the secondary circuit of the transformer, the sensitive device being in one branch of a Wheatstone bridge, the storage device in one of the cross connections between opposite points of the bridge and the battery in the other cross connection, and resistances L, L' and L" in the three remaining branches of the bridge, as set forth." With the above amendment the application is submitted for reconsideration. Ken. Кли, Риз централ atts In Tesla, This page retyped com microfilm for better readability - Ed.]