Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 988
nt ofthe end of G; hence, while it is necessary for H H toclamp the rope tight enough to move G, the pressure mustnot be so great as to prevent the rope from slipping. Forthe same reason, in order to make the safety governorreliable it is necessary that the operating rope shall be injust as good… … Fig. 393 The jaws of the safety plank and the wedge N should bekept clean and in proper adjustment at all times. As the WZ^ 954 Steam Engineering guides M have to be kept well lubricated, it can be easilyseen that if the safety jaws are neglected they will soonbecome clogged with a mixture of…