Railway and locomotive engineering - a practical journal of railway motive power and rolling stock (1906) (14572539648)

Identifier: railwaylocomotiv19newy (find matches)
Title: Railway and locomotive engineering : a practical journal of railway motive power and rolling stock
Year: 1901 (1900s)
Authors:
Subjects: Railroads Locomotives
Publisher: New York : A. Sinclair Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation



Text Appearing Before Image:
ted and describ-ed on page 326 of the July, 1905, issueof Railway and Locomotive Engineer-ing. In order to operate the McCarroIlReversing Mechanism, air is admittedto its four horizontal cylinders through links reach lull gear, the reveise levtror small handle being moved by one ofthe little eccentrics located at eitherend of the quadrant. The reach rodis moved by means of bevel and wormgears and this permits of the valv-;travel being cut up finer than can bedone with even small notches on anordinary reverse lever quadrant. Thehand wheel is to be used in cases ofemergency, or when no air supply isavailable, so that the engine links canbe moved at all times. The boiler is of the Belpaire type,with straight throat sheet and slopingback head. The waist is built up oithree rings and is 84 ins. in diameter atthe front end. The circumferentialseam in front of the dome is triple riv-eted, and the others are double riveted.The horizontal seams have diamondwelt strips. The water spaces are un-
Text Appearing After Image:
MALLET ARTICULATED COMPOUND FOR THE GREAT XORTHERN. G. H. Emerson. Superintendent of Motive Power. Baldwin Locomotive Work* Builders All throttle rigging has a certainamount of lost motion in it, put thereintentionally, so that the valve whenshut will not bear upon or be boundin any way by boJts or levers, but evenallowing for this, it is possible withthis arrangement to get a very muchfiner opening of this throttle valve thanis usual in the majority of engines. When it is desired to open thisthrottle further, for regular service theaction of the bell crank produces a wid-er and quicker action as it is movedfurther. While the short radius studis opening the valve slowly, the studat the longer radius is swinging throughits slotted hole and soon comes to the end of it, and begins to lift the valve.As its leverage is just a little over twoto one, it lifts the valve quickly andfully and the inflowing steam tendsto balance the valve, while theslot hole for the short radius stud a rotating