. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . (5.\IOTI\K (iKAR ASSEMBLED. motive engineer on the Knoxville Di-vision of the Southern Railway, and isnamed the Southern Locomotive ValveGear. Fig. 1 shows that it is of the out-side radial type of gear and obtainsall of its motion from an eccentriccrank attached to the main crank pin. block consequently at the forward endof the link, instead of the center. Asthe wheel revolves the eccentric rodwould move backward, and the endattached to the eccentric crank wouldalso move
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . (5.\IOTI\K (iKAR ASSEMBLED. motive engineer on the Knoxville Di-vision of the Southern Railway, and isnamed the Southern Locomotive ValveGear. Fig. 1 shows that it is of the out-side radial type of gear and obtainsall of its motion from an eccentriccrank attached to the main crank pin. block consequently at the forward endof the link, instead of the center. Asthe wheel revolves the eccentric rodwould move backward, and the endattached to the eccentric crank wouldalso move upward, and this upwardmovement would pull down the forward After the main crank pin has passedthe bottom quarter the eccentric crankwill have passed the back center, andfrom that point the motion of the valvebeing reversed, so that when the maincrank pin reaches the back center theeccentric crank will have reached the. KINEMATIC SHOWING VARYING POSITIONS IN FORWARP MOTION. To the eccentric crank there is attachedan eccentric rod, the front end of theeccentric rod being attached to what isknown as the transmission yoke, theupper end of the yoke being attachedto one end of a bell-crank, and the valverod being attached to the other arm ofthe bell-crank. Adjacent to the frontend of the eccentric rod is attached ahanger, known as the radius hanger. end of the eccentric rod, and conse-quently pull down the upper arm of thebell-crank, and in pulling this end ofthe bell-crank downward the lower armof the crank would be moved forward,thereby closing the front steam portof an outside admission valve. Notonly so, but when the link block is inthe front end of the link the radiushanger would be at an angle to the upper quarter, the valve will havemoved tliroughout its travel, and theback steam port will be opened forthe admission of steam. The move-ment of the valve thus depends en-tirely upon the angul
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
