Nikola Tesla U.S. Patent 725,605 - System of Signaling Patent Wrapper Page 34

648 23,847, 2. Nor is it seen how the arrival of such with respect to each other. impulses at the receiving station will necessitate the adjustment of the relays as stated. Applicant is required to explain the theory and operation of this modification in greater detail. claims 1, 2, 3, 4, and 5 are each rejected upon the British patent to Wilson, of record, or upon the patent to Cardwell, 315,121, The claims are of such scope as to Apl. 7, 1885, Telegraphy, Reed. be met by the Wilson patent for the reason that the disclosure thereby in shown means for operating two distinctive kinds of disturbances or impulses. Wilson describes apparatus for sending out different sets of waves; one set influences the vertically arranged receiving vanes 1 and 2 and another set the vanes 6 and 7. Even though these were by accident of the same periodicity still a variety of polarization or an equivalent seems to exist resulting in the greater effect from the vertically transmitted waves upon the vertically arranged vanes These in the language than upon the horizontally arranged vanes. of the claims are deemed to be distinctive sets of impulses. As to the Cardwell patent, there is therein disclosed a system where impulses of different frequencies are impressed upon the line. and two sets of impulses selected by certain circuits at the receiver and a printing magnet operated by the conjoint action of these two sensitive circuits. Applicant's claims are in no way limited to wireless telegraphy. claims 6, 7, 8, 9, 10, 11 and 12 are each rejected upon the patent to Cardwell cited above. Claim 7 is not understood inasmuch as it is not seen what particular portion of the device is referred to by "means for varying to the relations of the impulses of the several kinds". le. G. E. G. C. Lerom an. [This page retyped from microfilm for better readability - Ed.]