. American engineer and railroad journal . FIG. 2. The smoke-box was then fitted with a stack that was exactlyaccording to the Master Mechanics recommendations (in thetests just mentioned the inside stack only had conformed to theserecommendations). With this Master Mechanics stack (Fig. 3)tests with sJ^-inch and sJ^-inch exhaust nozzles were made, testsNos. , and In these tests it was observedthat while the cinders were all blown out of the front and thereappeared to be a higher velocity of the gases through the re- Test N L ^S^ 16« SH 16« sx 16K 900.
. American engineer and railroad journal . FIG. 2. The smoke-box was then fitted with a stack that was exactlyaccording to the Master Mechanics recommendations (in thetests just mentioned the inside stack only had conformed to theserecommendations). With this Master Mechanics stack (Fig. 3)tests with sJ^-inch and sJ^-inch exhaust nozzles were made, testsNos. , and In these tests it was observedthat while the cinders were all blown out of the front and thereappeared to be a higher velocity of the gases through the re- Test N L ^S^ 16« SH 16« sx 16K sV 7K SH 7H 5K ■H. FIG. 3. stricted passage under the edge of the diaphragm than would benecessary for this purpose, or there was a large differencebetween the draft front and back of the diaphragm, indicatingthat too great a resistance to the passage of the gases was causedby the length of the diaphragm plate. The plate was then cut off until it extended but 71/2 inches infront of the exhaust nozzle center. Tests Nos. , and were then run and in thetable below the resulting draft readings are given: TABLE NO. 1. Dr AFT Front E ND—Friable Coal. s 1» US 0 K s ■ •°_ «/0 u i S t0 10 ration oft, hours. .11 .so 5 ** u *- •oiHaifi-a S- pio un 0 u 5is a ti s H an Qb a ■ 160 27 Full .9 0 0 0 0 .9 48 .8 917.* 492 * Standard front end. While, in general, as has been explained, the draft indicationscannot be depended upon as compar
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
