Pumping Engines Stand Up Well at Convention Tests

Pumping Engines Stand Up Well at Convention Tests

Machines Have Little Difficulty Going Through Severe Twelve-Hour Grind at Full Capacity—Stutz and White Finish with Perfect Scores—Excellent Facilities Provided for Tests

WHILE there were but four participants in the pumping engine tests at the Toronto convention—one Stutz, one White and two Republics—the visiting chiefs displayed considerable interest and commented very favorably on the work of the machines. The ease of operation and the remarkable absence of vibration while the engines were pumping at top speed made an excellent impression on the observers, removing any doubts that may have existed as to the design and general construction of the cars that went through the gruelling. The tests held at the Exposition Grounds a stone’s throw from both the exhibit and meeting halls, and at the edge of Lake Ontario, were conducted under the direction of the Committee on Exhibits of the Association and in charge of Assistant Chief Engineer A. C. Hutson, of the National Board of Fire Underwriters, with the assistance of engineers of the Canadian Fire Underwriters Association. Following are the rules for the pumping tests, together with the official results:

In common with the aims of other engineering societies, the International Association of Fire Engineers strives to advance the status of the profession to which its membership is so earnestly devoted, and “Standardization” is a subject which is engaging the attention of all organized professional bodies; therefore:

Be it resolved by the board of directors of the International Association of Fire Engineers:

That this association shall adopt rules and regulations for governing tests and exhibits of fire fighting apparatus at its convention; also, that the Rules of Procedure hereinafter outlined be adopted as representative of the Standard Performance required by this association before such apparatus shall be approved.

That the association hereby approves a series of tests for pumping engines as follows:

Rules

Exhibitors will be required to state in advance the ratings they place on their pumping engines, that is, gallons discharged at 120 pounds, at 200 pounds, and at 250 pounds net pressures, and to furnish other information, as hereinafter outlined. Provisions will be made for exhibitors to run preliminary tests, preferably during the week preceding the convention, to verify the ratings.

The preliminary tests are to be sufficiently exhaustive te determine how much water each engine can deliver at the various pressures above specified, but it is to be definitely understood that this delivery shall be no more than can be maintained for the full period of the final test. An engine able to deliver, for example, 740 gallons at 120 pounds net pressure will be given a corresponding layout of hose and nozzles.

Ratings of engines will be considered as the next lower even 50 gallons than the quantity delivered at the preliminary test; for example, an engine delivering 740 gallons at 120 pounds net pressure will be rated at 700 gallons, and an engine delivering 880 gallons will be rated at 850 gallons. Any engine rated at less than 700 gallons will be permitted to use a suction not more than 41/2 inches, inside diameter; any engine rated at 700 to 850 gallons will be permitted to use a 5-inch suction; any engine rated at 900 gallons or more will be permitted to use a 6-inch suction.

The committee reserves the right, after the completion of the preliminary tests, to place any engine in another class than the one in which it is entered.

Tests will continue for a duration of twelve consecutive hours, divided as follows:

Machines That Took Part in Pumping Teats Top to Bottom—White, Stutz, Republic Photos Were Taken at About Sixth Hour, While Pumps Were Working at Full Speed

Photos by Staff Representative,

Talent of the Continent. Incidentally They Don’t Look Much Upset by Unpleasant Incidents at the Sessions.

Six hours delivering at 120 pounds net pressure not less than the quantity determined by the preliminary test.

Three hours delivering at 200 pounds net pressure, not less than the quantity determined by the preliminary test.

Three hours delivering at 250 pounds net pressure, not less than the quantity determined by the preliminary test.

During any of the runs not more than two men at one time will be allowed to operate or care for the engine.

Exhibitors will be required to furnish in advance a chart showing the measured brake horse power developed by their engines at rates of speed within the range likely to be rached during the tests.

Provisions must be made by the exhibitors on each machine for an exposed shaft end either on the motor or the pump, so that a revolution counter may be used to determine speeds.

The exhibitor must give exact dimensions of engine cylinders and length of stroke; from these the piston displacement in cubic inches per minute will be figured, and comparisons will be made between the piston displacement, the brake horse power of the engine and the power developed by the pump.

Provisions must be made for attaching the test gauge to a connection at some convenient point on the discharge piping; the gauge has 1/4-inch pipe thread.

All engines shall be tested under same conditions at draft.

Gasoline of the same grade will be supplied for the use of all engines Exhibitors may use any grade of lubricating oil desired. Records will be kept and reported of the amount of each that is used.

That such types of pumping engines as has heretofore or which may hereafter successfully pass the tests as prescribed by the foregoing rules, shall be officially approved by this association and no others shall be so recognized.

That the results of Convention tests shall be published in pamphlet form by this association, giving the following information:

Report of Results

Maker’s Name.

Manufacturer’s Number.

Rated Capacities as determined by preliminary tests.

At 120 pounds pressure,

At 200 pounds pressure,

At 250 pounds pressure.

Type

Tires

Wheel Base

Gear Ratio

Type of Clutch

Displacement per revolution

Height of center of suction above ground

Layout of hose and nozzles

Average discharge

Engine speed

Actual displacement per revolution

Gasoline used

Weight

Tread

Engine

Type of drive to pump

Type of pump

Gasoline Tanks: number and _____pacity

Duration of each test

Average Nozzle Pressure

Average Net Pump Pressure

Pump speed

Suction Lift

Lubricating Oil used

Remarks

That the foregoing rules and regulations have been adopted for the purpose of encouraging the production of the best possible fire fighting apparatus, and that no changes shall be made without consultation with such manufacturers as have from time to time cooperated with this association In its aims as hereinbefore set forth.

JOHN C. MORAN, Chairman,

SAMUEL F. HUNTER,

W. P. WEEKS,

SHERWOOD BROCKWELL,

RICHARD J. MARSHALL,

JAMES J. HENRY,

WILLIAM RUSSELL,

GEORGE W. BOOTH.

Tests

Maker’s Name—Republic Motor Truck Company.

Manufacturer’s Number: 72. Motor Number: 61678.

Rated capacity at 120 pounds pressure: 300 gallons.

Rated capacity at 200 pounds pressure: 150 gallons.

Rated capacity at 250 pounds pressure: 100 gallons.

Type—19 w. pump, chemical and hose wagon.

Weight—Without men or hose, 6,900 pounds; on rear wheels, 3,800 pounds.

Tires—Type: Pneumatic cord; size, 36×6 inch front; 40×8 inch rear.

Tread—56 inches front; 58 1/2 inches outside rear.

Wheel Base—154 inches.

Engine—Waukesha Motor, Model C. U.; 4-cylinder, 4.375-inch bore; 5.75-inch stroke.

Ignition—Single magneto.

Gear Ratio—Engine to pump: 3 to 1, 4.8 to 1 and 6 to 1.

Type of Drive to Pump—Spur Gear.

Pump—Type: Northern Rotary; no air dome.

Displacement per revolution— gallons.

Gasoline Tanks—Number: 1; capacity, 30 gallons; gravity feed.

Height of Center of Suction Above Ground—40 inches.

First Test—Duration, six hours. Lay-out of hose and nozzles: 1 line, 2 1/2-inch hose, 150 feet; 1 1/4-inch nozzle. Average nozzle pressure: 54 pounds. Average discharge: 339 gallons. Average net pump pressure: 120 pounds. Engine speed, R. P. M.: 1,800. Pump Speed. R. P. M.: 600. Actual displacement per revolution: 0.57. Remarks: At beginning of second test valve spring found broken and valve stem bent.

Maker’s Name—Republic Motor Truck Company.

Manufacturer’s Number: 6319. Motor No.: 4557.

Rated capacity at 120 pounds pressure: 550 gallons.

Rated capacity at 200 pounds pressure: 275 gallons.

Rated capacity at 250 pounds pressure: 183 gallons.

Type—19A. pump, chemical and hose wagon.

Weight—Without men or hose, 7,400 pounds; on rear wheels, 4,200 pounds.

Tires—Type: Pneumatic cords; size, 36×6-inch front; 40×8-inch rear.

Tread—56 inches front; 58 1/2 inches outside rear.

Wheel Base—168 inches.

Engine—Standard Steel Car Co., 8-cylinder; 3 1/4-inch bore; 5-inch stroke.

Ignition—Double; two spark plugs each cylinder.

Gear Ratio—Engine to pump: 3.0 to 1, 4.8 to 1, and 6 to 1.

Type of Drive to Pump—Spur gear.

Pump—Type: Northern Rotary; no air dome.

Displacement per revolution, 1.00 gallons.

Gasoline Tanks—Number: 1; capacity, 30 gallons; gravity feed.

Height of Center of Suction Above Ground—35 inches.

First Test—Duration, six hours. Lay-out of Hose and Nozzles: 2 lines, 2 1/2-inch hose, 100 and 450 feet; 1 5/8-inch nozzle. Average nozzle pressure: 61 pounds. Average Discharge: 612 gallons. Average net pump pressure: 122 pounds. Engine speed, R. P. M.: 1940. Pump speed, R. P. M.: 647. Actual displacement per revolution: 0.94. Remarks: none.

Second Test—Duration, three hours. Lay-out of hose and nozzle: 1 line, 254-inch hose, 400 feet; 1-inch nozzle. Average nozzle pressure: 104 pounds. Average discharge: 301 gallons. Average net pump pressure: 199 pounds. Engine speed, R. P. M.: 1,792. Pump speed, R. P. M.: 371. Actual displacement per revolution: 0.81 gallon. Remarks: Pulsation on hose severe because of absence of air dome.

Third Test—Duration, three hours. Lay-out of hose and nozzle: 1 line, 2 1/2-inch hose, 400 feet; 3/4-inch nozzle. Average nozzle pressure: 130 pounds. Average discharge, 190 gallons. Average net pump pressure: 249 pounds. Engine speed, R. P. M.: 2,566. Pump speed, R. P. M.: 421.* Actual displacement per revolution: 0.45 *gallons. Remarks: Carbureter not adjusted for operation on 4.8 to 1 gear, necessitating using 6.0 to 1 gear; engine speed excessive; impossible to put oil in crank case without slowing down motor.

*Estimated from engine speed; clutch probably slipping and figures incorrect.

Maker’s Name—The White Company.

Manufacturer’s Number: 75,223.

Rated capacity at 120 pounds pressure: 600 gallons.

Rated capacity at 200 pounds pressure: 300 gallons.

Rated capacity at 250 pounds pressure: 200 gallons.

Type—TDC combined pump and Hose Wagon.

Weight—Without men or hose, 7,780 pounds; on rear wheels 4,610 pounds.

Tires—Type: pneumatic cord; size, 36×6-inch front; 38×7-inch rear.

Tread—58 1/2 inches front; 65 1/2 inches outside rear.

Wheel Base—157 inches.

Engine—Own make; 4-cylinder; 4 1/4-inch bore; 5 3/4-inch stroke; 8 valves intake; 8 valves exhaust.

Ignition—Dual; single plug.

Gear Ratio—Engine to pump: 2.41 to 1; 3.03 to 1, and 5.103 to 1.

Type of Drive to Pump—Spur gear.

Pump—Type: Rotary with air dome.

Displacement per revolution, 1.03 gallons.

Gasoline Tanks—Number, 2; capacity, 25 and 5 gallons; gravity feed.

Height of Center of Suction Above Ground—35 inches.

First Test—Duration, six hours. Lay-out of hose and nozzles; 2 lines, 2 1/2-inch hose, 150 and 450 feet; 1 5/8-inch tip. Average nozzle pressure: 60.5 pounds. Average discharge: 609 gallons. Average net pump pressure: 121 pounds. Engine speed, R. P. M.: 1,930. Pump speed, R. P. M.: 637. Actual displacement per revolution: 0.95 gallon. Remarks: None.

Second Test—Duration, three hours. Lay-out of hose and nozzle: 1 line, 2 1/2-inch hose, 450 feet; 1-inch tip. Average nozzle pressure: 106 pounds. Average discharge: 305 gallons. Average net pump pressure: 207 pounds. Engine speed, R. P. M.: 1,765. Pump speed, R. P. M.: 396. Actual displacement per revolution: 0.77 gallon. Remarks: None.

Third Test—Duration, three hours. Lay-out of hose and nozzle: 1 line, 2 1/2-inch hose, 450 feet; 7/8-inch tip. Average nozzle pressure: 83 pounds. Average discharge: 207 gallons. Average net pump pressure: 260 pounds. Engine speed, R. P. M.: 1,658. Pump speed, R. P. M.: 325. Actual displacement per revolution: 0.64 gallon. Remarks: None. Suction lift—8 feet 11 inches. Gasoline used—69 gallons.

Maker’s Name—The Stutz High Duty Fire Engine Company.

Manufacturer’s Number: 100.

Rated capacity at 120 pounds pressure: 750 gallons.

(Continued on page 249)

Pumping Engine Convention Tests

(Continued from page 242)

Rated capacity at 200 pounds pressure: 375 gallons.

Rated capacity at 250 pounds pressure: 250 gallons.

Type—C. combined pump, chemical and hose wagon.

Weight—Without men or hose, 12,355 pounds; on rear wheels, 7,945 pounds.

Tires—Type: Pneumatic cord; size, 40×8 inches front; 40×8 inches rear.

Tread—58 inches front; 69 inches outside rear.

Wheel Base—175 inches.

Engine—Wisconsin make; 6-cylinder; 5 3/4-inch bore; 7-inch stroke.

Ignition—Dual; two spark plugs each cylinder.

Gear Ratio—Engine to pump: 1.47 to 1; 2.55 to 1, and 4.79 to 1.

Type of Drive to Pump—Silent chain.

Pump—Type: Rotary, with air dome.

Displacement per revolution, 0.95 gallons.

Gasoline Tanks—Number, 1; capacity, 30 gallons; gravity feed.

Height of Center of Suction Above Ground—40 inches.

First Test—Duration, 6 hours. Lay-out of hose and nozzles. 2 lines, 2 1/2-inch hose, 100 and 200 feet; l 3/4-inch nozzle. Average nozzle pressure: 70 pounds. Average discharge: 761 gallons. Average net pump pressure: 132 pounds. Engine speed, R. P. M: 1,087. Pump speed, R. P. M.: 741. Actual displacement per revolution, 1.02 gallons. Remarks: None.

Second Test—Duration, three hours. Lay-out of hose and nozzle. 1 line, 2 1/2-inch hose, 400 feet; 1 1/4-inch nozzle. Average nozzle pressure: 68 pounds. Average discharge: 381 gallong. Average net pump pressure: 215 pounds Engine speed, R. P. M.: 1,037. Pump speed, R. P. M.: 407, Actual displacement per revolution, 0.93 gallon. Remarks: None.

Third Test—Duration, three hours. Lay-out of hose and nozzle: 1 line, 2 1/2-inch hose, 400 feet; 1-inch nozzle. Average nozzle pressure: 135 pounds. Average discharge: 343 gallons. Average net pump pressure: 266 pounds. Engine speed, R. P. M.: 1,042. Pump speed, R. P. M.: 408. Actual Displacement per revolution: 0.84 gallon. Remarks: None. Suction lift—8 feet 10 inches. Gasoline used—90 gallons.

Note—Discharge measured in U. S. gallons. Gasoline measured in Imperial gallons. Actual gasoline used in U. S. gallons. Republic—74 gallons. White—83 gallons. Stutz—108 gallons.

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