. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . hecrosshead or disturbing the guides. Thelatter is a prolific cause of resultant pis-ton packing troubles, arising from the factthat the guides are not always set up trueto the cylinders. In the case of being outof line, the guides cause the crossheadand piston to run out of line also, andtherefore the packing does not have a fairchance to perform its special duty. Whenthe crosshead is dismantled there are theusual number of fitted bolts to be loos-ened; with the customary result that oneor m
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . hecrosshead or disturbing the guides. Thelatter is a prolific cause of resultant pis-ton packing troubles, arising from the factthat the guides are not always set up trueto the cylinders. In the case of being outof line, the guides cause the crossheadand piston to run out of line also, andtherefore the packing does not have a fairchance to perform its special duty. Whenthe crosshead is dismantled there are theusual number of fitted bolts to be loos-ened; with the customary result that oneor more of them is damaged to such anextent that it cannot be used again. Oftenmost of them will not have the properdraw when tried again, and the result is afull or nearly full set of new bolts to bemade. With the numerous examples ofsubstantial crossheads used in stationary-practice that have ready and practicalmeans for taking up the crosshead wear,it would seem as though our locomotivepractice should develop a scheme for aneasy adjustment for the inevitable devices now being experimented. ALLIGATOR CROSSHEAD GUIDES AND CAST STEEL GUIDE YOKE. Other application of a fresh supply of themolten compound. The oilway is pro-vided for by a small rod extending throughthe cap of the crosshead. which is easilywithdrawn when the metal has sufficientlyhardened. In conclusion it may be noted that whilewe have endeavored to be exact, as far asour space permits in describing what maybe called some of the common practicesin adjusting the guides and crossheads, upon are full of promise, and a generaladoption of some such scheme wouldsave much roundhouse labor, besides over-coming many difficulties arising from theannoying leaks so frequent in piston pack-ing. To these general remarks we may addthat we expect to be able to take up thesubject again at an early date and presentfurther means and methods used in ad-justing the guides and crossheads. 14 RAILWAY AND LOCOMOTIVE ENGINEERING Jan
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