. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . letter on Car ConstructionThe Committee reported that the variousrefrigerator companies have either de-veloped a brine retaining valve of theirown or favor some particular type ofvalve. A canvass of brine valve appli-cation to refrigerator cars shows the carsof twelve railroads and car lines are eitherall equipped or will be, in all but one case,during the current year. The followingrules are suggested for adoption as astandard of the association: 1. Operating rods shall be soli
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . letter on Car ConstructionThe Committee reported that the variousrefrigerator companies have either de-veloped a brine retaining valve of theirown or favor some particular type ofvalve. A canvass of brine valve appli-cation to refrigerator cars shows the carsof twelve railroads and car lines are eitherall equipped or will be, in all but one case,during the current year. The followingrules are suggested for adoption as astandard of the association: 1. Operating rods shall be solid andnot less than ^-in. in diameter. 2. Operating lever at top shall be ofwrought or malleable iron, with cross-sec-tion area not less than sq. in, 3. Rubber seats shall be made of purerubber, to resist the action of salt water. 4. Cast parts shall be of malleable iron,not less than ^-in. thick. 5. All parts of brine valves shall beheavily galvanized or sherardized. 6. All surfaces adjacent to rubber orother seats in the valves shall be machinedand free from fins, blow holes or RECOMMENDED CENTER SILL SECTIONFOR ADOPTION AS STANDARD 7. Valve operating mechanism shall beso constructed that valve must be closedbefore plug can be put in place. 8. Where possible, valves should be soarranged that weight of brine in tank willhold the valve closed. 9. The diameter of wearing pins andconnecting bolts shall be not less thany2-m. 10. All nuts shall be held in place bycotter pins at end or by lock nut. Rules for Clean-out or Hani>-holeCastings 1. Cast parts shall be of malleable iron,not less than ^-in. thick. 2. All parts of clean-out casting shallbe heavily galvanized or sherardized. 3. Clean-out castings shall have agasket between cover and clean-out frame.
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