. Railway master mechanic . ighpressure cylinder. Fig. 5 is a small sketch which claim that the engine is freer ndensation from the Brick The committee on brick arches in locomotive fireboxes requests answers to following questions:1st. How do you support the bricic arch in your fire •id. if with circulation pipes, do you have trouble withthe pipes in any way t ;td. If with lugs or projections screwed to side sheets, doyou find the luRs burn off very fast! 4th. Do you use flat or arched bricks .■■)th. Can you run an arch until it burns out, or do youhave to remove them before this, in order to
. Railway master mechanic . ighpressure cylinder. Fig. 5 is a small sketch which claim that the engine is freer ndensation from the Brick The committee on brick arches in locomotive fireboxes requests answers to following questions:1st. How do you support the bricic arch in your fire •id. if with circulation pipes, do you have trouble withthe pipes in any way t ;td. If with lugs or projections screwed to side sheets, doyou find the luRs burn off very fast! 4th. Do you use flat or arched bricks .■■)th. Can you run an arch until it burns out, or do youhave to remove them before this, in order to clear flues; tith. Do you find the arch causes damage to fire boxsheets! If so. in what way! 7th. Do ycu think the arch assists in consuming the vari-ous gases composing black smoke! Sth. Do you think more perfect combustion is obuinedwith the arch by checking the passage of smoke and gasesthrough tubes and causing them to mingle and be longerexposed to heat! nth. Do .you think there is a saving of fuel with the arch. than many other compounds. In starting the enginesteam is admitted to the low pressure cylinder byconnecting the adjacent ends of the high and lowpressure cylinders together, and when steam entersthe high pressure cylinder, it is wire drawn throughthis connection into the low pressure cylinder, fur-nishing steam to work upon both pistons. Thisarrangement is not automatic; it consists simply ofsmall pipe connections between the two cylinders,closed by suitable cocks, which are operated from ■the cab in much the same manner as the cylindercocks are worked. The manner in which the pistons are connected tothe cross-heads is shown in Fig. B. It will be seenthat the cross-head works in a four bar guide, and isprovided with a hub projecting above the guidesand one projection below, each of which receives apiston rod end. The crosshead has been made some-what longer than usual, and the piston rods are es-pecially strong to provide against any inequality ofthe wor
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Keywords: ., bookcentury1800, bookdecade1870, bookidr, booksubjectrailroadcars
