. American engineer and railroad journal . Fig. REAR ENDS OF LOCOMOTIVE When 52-inch boilers, carrying 140 pounds steam pressureand weighing 21,000 pounds, were common, it was not difficultto support them with satisfactory and easily maintained de-vices, but with the advent of boilers weighing 60,000 to 70,000pounds, the problem is more The support at the front end being rigid that at the backend must provide for the expansion and the devices usedmust be light and inexpensive to maintain. They must dis-tribute the load in such a way as to reduc
. American engineer and railroad journal . Fig. REAR ENDS OF LOCOMOTIVE When 52-inch boilers, carrying 140 pounds steam pressureand weighing 21,000 pounds, were common, it was not difficultto support them with satisfactory and easily maintained de-vices, but with the advent of boilers weighing 60,000 to 70,000pounds, the problem is more The support at the front end being rigid that at the backend must provide for the expansion and the devices usedmust be light and inexpensive to maintain. They must dis-tribute the load in such a way as to reduce to the minimumthe vertical stresses in the frames, and they must provide forwear to be received upon parts which may be easily renewed and they should not only support the boiler, but hold it againstsurging stresses and provide for tensile stresses due to hand-ling the engine in a wreck. The best opinion seems to favor support from the mud ringand doing this with a view of keeping all attachments asclose to the firebox as possible, making provisions for distrib-uting the stresses over la
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
