Test of Continental Engine at Washington.
November 1, 1911.
F. J. WAGNER, Chief Engineer, Fire Department, District of Columbia:
Sir.—I have the honor to make a detailed report of the test of one second size Continental engine, built by the Ahrens-Fox Fire Engine Company. This test was held at the east front of the United States Capitol, taking suction from a cesspool, on October 30, 1911 The test was started with two full gages of cold water in the boiler, making a total of Id gallons. The time of boiler steaming was taken from the time tirst smoke came from the stack:
The boiler made its first steam in two minute and 40 seconds, and the 100 pounds of steam in eight minutes and 45 seconds, when the engine was started.
First Test.—Three lines of 2 1/2-inch cotton, rubberlined hose, 200 feet to each line with three 1-inch tips. Engine ran 15 minutes. Average water pressure at pumps, 110 pounds. Average steam pressure, 138 pounds. Distance of water thrown, 107 feet. Revolutions of engine, 308 per minute. Average pressure at nozzle was 72.5 pounds for each tip, making a displacement in water of 750 gallons per minute.
Second Test—Two lines of 2 1/8-inoli cotton, rubberlined hose, 200 feet to each line, with two 1 1/2-inch tips. The engine was run one hour, and nozzle pressure taken every five minutes. Average water pressure at pumps, 135 pounds. Aver age steam pressure, 138.5 pounds. Distance of water thrown, 181 feet. Revolutions of engine, 330 per minute. Average nozzle pressure being (13 pounds, for the hour run, making a displacement of 730 gallons of water per minute for the hour run.
Third Test.—Two lines of 2 1/8-inch cotton, rubber lined hose, 200 feet to each line leading to a deluge set with I 1 1/2-inch tip, engine ran 15 minutes. Average water pressure at pumps, 185 pounds Average steam pressure, 138 pounds. Distance, water thrown, 269 feet. Revolutions of engine, 345 per minute. Average nozzle pressure, 130 pounds, baking a displacement of 760 gallons per minute.
Fourth I cst The lines the same as third test, hut used 1 3/4-inch tip engine ran 10 minutes. Average water pressure at pumps, 140 pounds. Average steam pressure, 135.5 pounds. Distance of water thrown, 208 feet. Revolutions of engine, 350 per minute. Average nozzle pressure, 72 pounds, making a displacement of 780 gallons of water per minute. During the test the steam and water pressure at pumps was taken every minute. The test, in my opinion was very satisfactory in every particular, also there are one or two special features to be considered, that is the smooth running of engine, and also the consumption of coal during the test was 20 per cent, less than of any boilet I have ever tested.
THOS. M. ROBINSON, Superintendent of Machinery.
Councilman John D. Spencer, of Baltimore, has introduced an ordinance granting a pension to John J. Leddn, formerly chief engineer of the lire department. Mr Spencer said that Mr. Fed den served the city faithfully and continuously for 21 years, and was permanently disabled by reason of severe injuries received while fighting