Nikola Tesla U.S. Patent 1,061,206 - Turbine Patent Wrapper Page 47

JLJLJU 360036303DCDOGDUJUCILI 9090 -3The contion of rotation, and the other radially outward. bined effect of these tangential and centrifugal forces is to propel the fluid with continuously increasing velocity in a spiral path until it reaches a suitable peripheral outlet from which it is ejected. This spiral movement, free and undisturbed and essentially dependent on the properties of the fluid, permitting it to adjust itself to natural paths or stream linee and to change its velocity and direction by insensible degrees, is a characteristic and essential feature of this principle of operetion. while traversing the chamber enclosing the runner, the particles of the fluid may complete one or more turns, or but a part of one turn, the path followed being capable of close calculation and graphic representation, but fairly accurate estmiates of turns can be obtained simply by determining the number of revolutions required to renew the fluid passing through the chamber and multiplying it by the ratio between the mean speed of the fluid and that of the disks. see 9073 Cenc Cencel the first six lines of the last paragraph on page 6, comprising lines 15 to 20 inclusive, and insert: "Considering now the converse of the above described operation and assuming that fluid under presenre be allowed to pass through the valve at the side of the solid arrow, the runner will be set in rotation in a clockwise direction, the fluid travelling in a spiral path and with continuously diminishing velocity until it reaches the orifices 14 and 20, through which" -- On pege 6, cancel "in the volate channel" in lines 23 56 fotton 911