Nikola Tesla Patents
careful adjustment, the advantages of my method may be more or less completely secured. I find it preferable, however, to follow the plan which I have illustrated and described. Go It will be observed that the condenser is an important element in the combination. I have shown that, by reason. of its unique properties, it greatly adds to the efficacy of this method. It allows the energy accumulated in it to be discharged instantaneously, and therefore in a highly effective manner; it magnifies, in a large degree, the current supplied from the battery and, owing to these features, it permits energy to be stored and discharged at practically any rate desired and thereby makes it possible to obtain in the receiving circuit very great changes of the current strength by impressing upon the battery current very small variations. Other means of storage, possessing these characteristics to a useful degree, may be employed without departing from the broad spirit of my invention, but I prefer to use a condenser, since in these respects it excels any other storage device of which I have knowledge. In Fig. 2 a modified arrangement of apparatus is illustrated which is particularly adapted for the investigation and utilization of very feeble impulses or disturbances, such as may be used in conveying signals or producing other desired effects at very great distances. In this case the energy stored in the condenser is passed through the primary of a transformer, the secondary circuit of which contains the receiver, and, in order to render the apparatus still more suitable for use in detecting feeble impulses, in addition to the sensitive device which is acted upon by the impulses another such device is included in the secondary circuit of the trans13 This page retyped from microfilm for better readability - Ed.] 423
