Nikola Tesla Patents
264 tion of the controlling mechanism. Fig. 5 is an end view of the same. Fig. 6 shows the same mechanism in side elevation. (Fig. 7 is a side view of a detail of the mechanism. Fig. 8 is a central sectional view on a larger scale. of a sensitive device forming part of the receiving circuit. Fig. 9 is a diagrammatic illustration of the system in its preferred form. Fig. 10 is a view of the various mechanisms employed, but on a larger scale and leaving out or indicating conventionally certain parts of well understood character. 3 Referring to Fig. 1 and Fig 2, A designates any type. of vessel or vehicle which is capable of being propelled and directed, such as a boat, a balloon or a carriage. It may be designed to carry, in a suitable compartment B, objects of any kind, according to the nature of the uses to which it is to be applied. The vessel, in this instance, a boat, is provided with suitable propelling machinery which is shown as comprising a screw propeller C, secured to the shaft of an electro-magnetic motor D, which derives its power from storage batteries E,E,E,E. In addition to the propelling engine or motor, the boat carries also a smaller steering mot or F, the shaft of which is extended beyond its bearings and provided with a worm which meshes with a toothed who el G. This latter is fixed to a sleeve b, freely movable on a vertical rod H, and is rotated in one or the other direction according to the direction of rotation of the tor F. D The sleeve b on rod H is in gear through the cog wheels H and H" with a spindle G¹ mounted in vertical -11