A GOVERNOR FOR TELEPHONE DIALS 13()'( 



and steady-state speed for the drive-har governor 



/ 



G{d - nc) + M/iojo^ - iirjG/e 



where 



Fs = ??/coo"ni and M = 'lynn-nb 



Solving for (F.,) 



C 

 Fs = mr oo)^ — ^r-^ {d - nc — nrj/e) 



Substituting in equation (1), the values for Fm and F., 



C 

 mcoVo6 = mrocJ^b — - — (d — ixc — firj/e) + ml sin 8 

 2r/i 



or 



ml sin /3 = - — {d — nc — iirj/e) 

 2ryi 



Expressing the equation in terms of mass of the weight we have the 

 chatter equation for the drive-bar governor. 



m ^ g(l- M^ - ^rj/e) ^2) 



2rixl sin /3 



