. Railway mechanical engineer . advanced to standards. ^TIONS The specifications for the following material were adoptedas recommended practice: Black paint; elliptical springs;insulation paper for refrigerator cars. The paragraph regarding deflection test was added tosection 4 of the specifications for air brake hose gaskets. Thespecifications for helical springs were rewritten. A slightchange was made in the specifications for steam heat hosefor passenger ecjuipment cars, steel axles, and air brake andtrain air signal hose. The knuckle pivot pin specifications were eliminated, be-i
. Railway mechanical engineer . advanced to standards. ^TIONS The specifications for the following material were adoptedas recommended practice: Black paint; elliptical springs;insulation paper for refrigerator cars. The paragraph regarding deflection test was added tosection 4 of the specifications for air brake hose gaskets. Thespecifications for helical springs were rewritten. A slightchange was made in the specifications for steam heat hosefor passenger ecjuipment cars, steel axles, and air brake andtrain air signal hose. The knuckle pivot pin specifications were eliminated, be-ing suljstituted by the specifications for heat-treated knucklepivot pins and these were advanced to standard. The re-quirement for silicon was omitted from these specifications. A few changes were also made in the specifications forlumber, the most important of which was the addition ofa note following section 42, as follows: Note.—For material furnished in accordance with sec-tions 43 to 47. the following Densitv Rule mav be.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
