TRIAL OF A NEW CLAPP & JONES ENGINE.

TRIAL OF A NEW CLAPP & JONES ENGINE.

FIRE DEPARTMENT, CITY OF NEW YORK OFFICE OF REPAIR SHOPS, Nos. 130 AND 132 W. THIRD ST.

NEW YORK, June 3, 1S81.

To the Honorable Board of Commissioners :

GENTLEMEN—I respectfully report that the newfourth size, single pump and cylinder, “Crane Neck ” Vertical Steam Fire Engine, known as No. 46, Registered No. 359, which was received from the Clapp & Jones Manufacturing Company, of Hudson, N, Y., on May 28, 1881, was tested at the foot of 17th street, E. R., on the 2nd inst. The Engine was found to conform to the requirements of the contract in every particular, and the results attained, which is given in detail below, proved entirely satisfactory. This Engine has, in addition to the ordinary appliances for feeding the boiler, and not called for in the contract, an “ Inspirator,” which feeds the water in the boiler at quite a high degree of heat, making it easier to keep steam up at an even pressure, and during the trial it worked very satisfactory.

TRIAL.

The Engine was started at 10.04 o’clock A.M., with one (1) gauge cock of water in the boiler, the Engine drawing water from the river, with a lift of 8 feet 6 inches. The time consumed in raising steam from the time of lighting fire, was :

5 pounds. C minutes.

io “ . “

20 “ . “

40 “ . 10 “

60 “ . “

80 “ . 13 “

FIRST TRIAL.

Through 200 feet 2j£-inch hose, single line, using 1%-inch nozzle ; 15 minutes time consumed, with pressure taken every five (5) minutes : Water pressure at pumps, 140, 120 and 115 pounds; steam, 95, 85 and 80 ; water pressure at pipe, 90, 85 and 80 ; distance thrown, 185 feet.

SECOND TRIAL.

Same as first trial, except ij^-inch nozzle being used, 10 minutes time consumed, one (1) pressure taken : Water pressure at pump, 160 pounds ; steam, 105 ; water pressure at pipe, 120 ; distance thrown, 205 feet.

THIRD TRIAL.

Through two (2) lines, 200 feet 2j£-inch hose in each line, using i-inch nozzles, 15 minutes time consumed ; pressures taken every five (5) minutes. Water pressure at pump, 55, 70, 73 pounds; steam, 56, 80, 90; water pressure at pipe, 40, 55, 60; distance thrown, 150 feet.

FOURTH TRIAL.

Two (2) single lines, 200 feet 2j£-inch hose in each, siamesed, using 1 ^-inch nozzle ; time consumed, 15 minutes; pressures taken every five (5) minutes. Water pressure at pump, 85, 85, 100 pounds ; steam, 100, no, 90 ; water pressure at pipe, 70, 75, 70; distance thrown, 178 feet.

FIFTH TRIAL.

Same as trial No. 4, except with 50 feet of 2j£-incli hose, used as leading line from Siamese connection to pipe ; distance thrown, 180 feet.

SIXTH TRIAL.

Through 200 feet 2j£-inch hose, single line, with open butt, 5 minutes time consumed, with one (1) pressure taken. Water pressure at pump, 65 pounds ; steam, 87 ; water pressure at open butt, 1. This trial was held for the purpose of ascertaining the difference between the pressure at the open butt and a brass play-pipe with 1 J^-inch nozzle, with the same water pressure at pump.

SEVENTH TRIAL.

Same as trial No. 6, except brass plaj’-pipes, with i^-inch nozzle being used ; 5 minutes time consumed ; one (1) pressure taken. Water pressure at pump. 65 pounds ; steam, 80 ; water pressure at pipe, 35. This trial was also held for the same purpose as trial No. 6.

EIGHTH TRIAL.

Through 200 feet 2j£-inch hose, single line, using ij^-inch nozzle, attached to butt without plaj’-pipe ; 10 minutes time consumed ; one (1) pressure taken. Water pressure at pump, 65 pounds ; steam, 75 ; water pressure at pipes, 35 ; distance thrown, 170 feet.

NINTH TRIAL.

Same as trial No. S, except with brass plaj’-pipe and 1 J-inch nozzle being used; 10 minutes time consumed ; one (1) pressure taken ; water pressure at pump, no pounds; steam, 90; water pressure at pipe, 60; distance thrown, 170 feet.

TENTH TRIAL.

Through 750 feet 2>4-inch hose, single line, using i-inch nozzle, 15 minutes time consumed; pressure taken every five (5) minutes ; water pressure at pump, 190, 200, 205 pounds ; steam, 130, 130, 130; water pressure at pipe, 65, 65, 65 ; distance thrown 174 feet.

ELEVENTH TRIAL.

Through two (2) single lines of 500 feet 2j-inch hose in each, using I inch nozzles, 15 minutes time consumed ; two (2) pressures taken ; water pressure at pump, 100, 105 pounds ; steam, 125, 135 ; water pressure at pipe, 6o, 50; distance thrown, 150 feet.

TWELFTH TRIAL.

Through 1000 feet aj-inch hose, single line, using i-inch nozzle, 10 minutes time consumed. One (1) pressure taken. Water pressure at pump, 175 pounds ; steam, 135 ; water pressure at pipe, 75 ; distance thrown 155 feet.

THIRTEENTH TRIAL.

Through two (2) lines 2 J^-inch hose, 150 feet in each line, run into a fourway connection, with 50 feet 3^-inchhosc as leading line, 1 Jtf-lnch nozzle used, 10 minutes time consumed. One (1) pressure taken. Water pressure at pump, 55 pounds ; steam, 130; distance thrown 140 feet.

Engine was shut down at 12.55 o’clock I. M., making duration of trials 2 hours and 51 minutes.

Amount of coal consumed 762 pounds. Weight of Engine 5,600 pounds.

Owing to the direction of the wind which was blowing quite fresh, it was not possible to form any idea as to what distance the Engine would throw under favorable circumstances. On account of the position of the buildings on the grounds, it was impossible to throw the streams in any direction, but what the wind would cut them off.

The Engine is now at these shops ready for service, and I would respectfully request instructions as to what disposition shall be made of the same. Very Respectfully,

JOHN MCCABE.

Chief of Battalion in charge Repair Shops,

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