. American engineer and railroad journal . BODWEICHJTl „(i ,v> n$TOM VALVO jCONN ROD A j i etc 4M£»a ftSltRl* - -100 232-777 1S»6 808 ♦♦7 3»2S |»73 114-51 1- 2885 r - 162 - -ISS- - -ri SBIfil H»fl-. engine bed. To sum this up in a few words, during theupper half of the revolution the engine tends to liti thevessel, and during the lower half to depress it. The mainprinciple which governs the whole matter may be thussummed up : As no internal force can move the center ofgravity of a body, it follows that any momentum generat-ed by steam pressure in the moving parts, such as thepi
. American engineer and railroad journal . BODWEICHJTl „(i ,v> n$TOM VALVO jCONN ROD A j i etc 4M£»a ftSltRl* - -100 232-777 1S»6 808 ♦♦7 3»2S |»73 114-51 1- 2885 r - 162 - -ISS- - -ri SBIfil H»fl-. engine bed. To sum this up in a few words, during theupper half of the revolution the engine tends to liti thevessel, and during the lower half to depress it. The mainprinciple which governs the whole matter may be thussummed up : As no internal force can move the center ofgravity of a body, it follows that any momentum generat-ed by steam pressure in the moving parts, such as thepiston, etc., must be attended by an exactly equal mo-mentum in the rest of the ship in the opposite direction. pressure crank and its valve eccentrics. Each unbalancedmoving part in the engine is then dealt with separately, asbefore described, and the position and amount of theweights necessary to balance it ascertained, the stroke ofthe balance weights being taken, for the purposes of cal-culation, as equal to the stroke of the part they balance ineach case. For instance, take the middle-pressure piston,piston-rod, etc., lettered B, the unbalanced reciprocatingparts of which weigh 162 lbs., the balance requ
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
