. Public works . heoil under pressure. The tank is filled through a dome atthe top, and should the oil not be shut ofif promptly whenthe tank is full, any overflow is taken care of by a piperunning vertically through the bottom of the tank andterminating at a point near the top, open at both top andbottom, through which the surplus oil flows out to theground beneath the truck. In this way cleanliness of thetank covering is maintained, which is believed to be use-ful, not only in maintaining the good appearance of theequipment but in keeping up the mens pride in theirmachine so that they gi\ e
. Public works . heoil under pressure. The tank is filled through a dome atthe top, and should the oil not be shut ofif promptly whenthe tank is full, any overflow is taken care of by a piperunning vertically through the bottom of the tank andterminating at a point near the top, open at both top andbottom, through which the surplus oil flows out to theground beneath the truck. In this way cleanliness of thetank covering is maintained, which is believed to be use-ful, not only in maintaining the good appearance of theequipment but in keeping up the mens pride in theirmachine so that they gi\ e it better care tank proper is covered with a jacket, and magnesiainsulating material is placed between the two which in-sures a very moderate loss of temperature while the oilis in the tank, except, of course, for the immediate loss ofa few degrees caused by the heating of the tank itselfwhen first filled. Temperature tests of the oil can bemade at any time by inserting a thermometer into an iron. PASADENA ROAD UTLER. lube with a closed inner end which slants downward with-in the tank from an opening at the rear. On reaching the street to be oiled, the operator takeshis place on the running board at the rear of the nozzleheader and starts the oil pump, which is located withinthe tank at the front end. This is a rotary pump whichis run on a ball-bearing shaft by a sprocket and chainconnected to a jackshaft driven through a friction clutchby the trucks transmission system. The same drivingmechanism, which is at the forward end of the truck,is also adapted to operating a dumping mechanism for atruck body which may be substituted for the tank bodywhen occasion requires and used for hauling gravel orother road material. The driving mechanism is inde-pendent of that which propels the truck, and the pumptan therefore get power whether the truck is in motionor not and at a rate independent of its speed. The pump discharges the hot oil through a pipe run-ning through th
Size: 1893px × 1321px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidpublicworks3, bookyear1896
