. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . rheater is now recognized asan essential part of American locomo-tives. Practically all of the locomotivesbuilt in the past few years for Americanroads are superheated. Indeed, in thecase of much of our larger power itwould be impossible to obtain satisfac-tory results if the superheater were notemployed. There is no limit placed onthe size of the locomotive to which super-heaters are applicable. The huge Malletsof the 2-10-10-2 type, recently built forthe Virginia Railway by the American are
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . rheater is now recognized asan essential part of American locomo-tives. Practically all of the locomotivesbuilt in the past few years for Americanroads are superheated. Indeed, in thecase of much of our larger power itwould be impossible to obtain satisfac-tory results if the superheater were notemployed. There is no limit placed onthe size of the locomotive to which super-heaters are applicable. The huge Malletsof the 2-10-10-2 type, recently built forthe Virginia Railway by the American are now operating in San engines burn soft coal and havecylinders 15 ins. in diameter by 20 stroke. The driving wheels are 37ins. in diameter, and with a boiler pres-sure of 170 lbs., the locomotives will de-velop 17,600 lbs, tractive effort. Theboiler is of the straight top type, 48 diameter at the first ring, and con-tains a 12-unit superheater, type A, sup-plied by the Locomotive SuperheaterCompany, 30 Church street, New are twelve SVs ins. flues and sev-. SMALL 2-8-0 WITH SUPERHEATER FOR THE CENTRAL OF SPAIN. Locomotive Company are of necessityequipped with superheaters; and, going tothe other extreme, many plantation own-ers and logging companies, recognizingthe increased capacity and economy re-sulting from the use of superheatedsteam, have equipped their locomotiveswith this device. A recent example ofthe use of superheaters in plantation lo-comotives is the small Consolidationshown in our illustration. Two of theselocomotives were recently built by theVulcan Iron Works, Wilkes-Barre, Pa.,for the Central Espana Plantations, and enty-nine 2 in. tubes, 11 ft. 3 ins. longover tube sheets. The heating surfaceof the tubes and flues is 650 sq. ft. andthat of the firebox 65 sq. ft., making atotal evaporative surface of 715 sq. superheating surface is 150 sq. ft.,and the grate area is sq. ft. As willbe seen from the engraving,
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