Pacific municipalities . otection and domestic sefvace. A brief description of the plants erected at Co-lusa will give a ver\ good idea of the arrangement employed in towns within theradius of electrical power distribution of the larger power companies. The machinery installation consists of two 4-stage turbine fire pumps and 2^^ PACIFIC MUNICIPALITIES motor and a 2-stage pump and motor for domestic service, both units being di-rectly connected to motors on a continuous line shaft, each being belted back to a100 H P. multi-cvlinder gas engine which furnishes auxilliary control. The arrangement
Pacific municipalities . otection and domestic sefvace. A brief description of the plants erected at Co-lusa will give a ver\ good idea of the arrangement employed in towns within theradius of electrical power distribution of the larger power companies. The machinery installation consists of two 4-stage turbine fire pumps and 2^^ PACIFIC MUNICIPALITIES motor and a 2-stage pump and motor for domestic service, both units being di-rectly connected to motors on a continuous line shaft, each being belted back to a100 H P. multi-cvlinder gas engine which furnishes auxilliary control. The arrangement of the clutches on the pump line shaft is such that either orall pumps may be electrically or gas engine driven, or either pump may be motordriven and the other operated by the gas engine. The 4-stage turbine fire pumps which are direct connected to General ElectricCo 8-75 H P.—1150 R. P. M.—60 cycle—2200 N.—.^^ phase Induction Motor,are designed for individual capacities of 700 gallons per minute under 125 pressure per sq. in., and the 2-stage turbine pump for domestic service direct con-nected to a General Electric Co. 40 H. P. Induction Motor of the same type, has acapacity of 700 gallons per minute under a pressure of 56 lbs. per sq. in. The 75 H. P. motor is mounted between the fire pumps and direct connectedthereto by jaw clutches. Either pump may thus be controlled by the one the motor and pumps, pulleys are mounted on the line shaft, and theunits are each belted back to friction clutch pulleys on the extended gas engineline shaft. The domestic pump is also direct connected to motor and the shaft is extended PACIFIC MUNICIPALITIES 241 to receive a pulle}-, which is belted back to the friction clutch pulley on the gas en-gine shaft. This arrangement, with the necessary clutches, etc., exercises complete con-trol of the pumps by either electrical or gas engine drive. A friction coupling is mounted on the engine line shaft next to the engine fly
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