As the pipe is apt to become very hot it should have additional protection where dust or inflammable flyings are present.
(7) The Engine Base.—It is recommended that the base be constructed with a groove or channel to prevent lubricating oil from sucking into floors.
(8) Lubricating Oil Drips and Pans.—(a) These must be provided to prevent the oil from spilling.
(b) Cranks and other rapidly revolving or recipro cating parts must be shielded to prevent throwing of oil.
(9) About Name Plates.—A name plate giving the name of the manufacturer and the trade name of the engine must be secured to the engine.
(10) Care and Attendance.—Due consideration must be given to the cleaning of the cylinders, valves and exhaust pipe and pot as often as the quality of the fuel may necessitate.
Installing Stationary Gasoline Location of Engines.—This is the same as for gas engines, as described under the heading 1 and in paragraphs a, b, and c.
(12) Capacity and Location of Tanks.—In closely built districts, or within fire limits, tanks should be located underground to conform to Class B of Rega lations for Construction and Installation of Contain ers for Storing and Handling Hazardous Liquids. You can get a copy of this booklet free of charge by writing to the National Board of Fire Under writers, William Street, New York.
(13) Gasoline Feed-Cup.—(a) This must be ar ranged to prevent spattering, dripping or the ex posure of gasoline either when the engine is at rest or running.
(b) It must also be provided with an overflow con nection which drains back to the supply tank.
(14) Gasoline Feed Pump.—This must be of ap proved type, secure against leaks with check valves placed as close to the pump as convenient.
(15) Igniter or Exploder.—Electric ignition only, and the same conditions apply in other respects as for gas engines, as described under heading 8.
(16) Muffler or Exhaust Pot.—Same as for gas engines, as described under heading J, in paragraphs a and b.
(17) The Exhaust Pipe.—Same as for gas en gines, as described under heading 6. Water pockets in the exhaust pipe must be provided with suitable means for drainage.
(18) The Engine Base.—(a) It must not be used as a storage space for gasoline or other materials. (b) See also heading 7.
(19) Imbricating Oil Drips and Pans.—See head ing 8, paragraphs a and b.
(20) Name Plate.—See heading 9.
(21) Care and Attendance.—See heading 10.
Portable Gasoline Engines.—Under this heading are included the so-called self-contained engines, mounted on skids or wheels, or otherwise so arranged as to be conveniently moved from place to place as the necessities of the service may demand.
These engines are considered more hazardous than stationary engines having separate underground stor age tanks, and should not be used as a substitute for stationary engines. When used, their hazards are recognized by the inspection department of the Un, derwriters, having jurisdiction, and, hence, the fol lowing rules and precautions should be rigidly ob served: (22) The Supply Tank.—(a) Gravity feed from a supply tank to the engine is prohibited.
(b) The capacity of the supply tank must not ex ceed the amount of fuel required for 10 hours' run ning, full load.
(c) The tank must be so mounted as to be pro. tected against wear due to jarring and vibrations.
(d) It must be so located, or protected, as to avoid injury from coming in contact with outside objects, as well as to prevent an excessive use of temperature of the gasoline due to the heat from the cylinder or exhaust (23) Piping and Fittings.—See heading 12.
(24) Gasoline Feed Cup.—See heading 18.
(25) Gasoline Feed Pump.—See heading 14.
(26) Igniter or Exploder.—See heading 8.
(27) Muffler or Exhaust Pot.—See heading 4, paragraph b.
(28) Lubricating Oil Drips and Pans.—See head ing 8.
(29) Name Plate.—See heading 9.
(30) Care and Attendance.—(a) The supply tank should be filled during daylight hours only, and while the engine is not running.
(b) The tank should be filled by means of ap proved safety cans, and main gasoline supply should be kept in approved receptacles outside of buildings.