. Railway and Locomotive Engineering. ed, nozzle located same as in fifthtest. Seventh. Vary the size of the nozzlewith the best arrangement of parts, asalready determined. Eighth. Comparative results of doubleor of single nozzles. That work was carried out with in-finite labor, exactness and skill, as thereport covers 85 pages of the AnnualVolume for 1896, is illustrated by 25 sep-arate cuts and 53 page and folder plates. A form of front end arrangement wasrecommended and members were re-quested to experiment with it and reportthe following year. This was done, andat the 1897 convention fifte
. Railway and Locomotive Engineering. ed, nozzle located same as in fifthtest. Seventh. Vary the size of the nozzlewith the best arrangement of parts, asalready determined. Eighth. Comparative results of doubleor of single nozzles. That work was carried out with in-finite labor, exactness and skill, as thereport covers 85 pages of the AnnualVolume for 1896, is illustrated by 25 sep-arate cuts and 53 page and folder plates. A form of front end arrangement wasrecommended and members were re-quested to experiment with it and reportthe following year. This was done, andat the 1897 convention fifteen membersrelated their experience with the frontrecommended, and they were nearly allfavorable to the arrangement. Some ofthem obtained better results by leavingout the petticoat pipe, and others assertedthat the choke was too small and oughtto be made larger than the nozzle. Thetrend of the testimony was, however, de-cidedly in favor of the front end, andsome of the members told that they hadmade it the standard for all their loco-. FRONT END RECOMMENDED FOR STAND-ARD OF RAILWAY MASTER ME-CHANICS ASSOCIATION. motives. No move was made, however,by the association to place the front endamong the standards. In 1903 the subject of front ends wasagain taken up seriously and reported onby a committee of which Mr. H. was chairman, and again in1906 another report on the same subjectwas made. Both these reports indicatedthat much careful experimental work hadbeen done, especially in 1906, when allthe experiments described in the reportwere conducted by Professors Goss andTeague on an Atlantic type engine loanedby the New York Central Railroad foruse on the Purdue University experi-mental locomotive plant. After careful consideration of the re-sults obtained with different sizes andforms of stacks, exhaust pipe sizes andheights, lift pipes, inside and outside stacks of different dimensions, the com-mittee recommended for a smoke box74 ins. diameter, a smoke stack 29
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