APPLICATION OF GRAPHIC METHODS 



323 



When the loads have been determined a reciprocal figure of nine 

 lines enables us to ascertain the true relation between effort and 

 resistance in a horizontal direct-acting steam-engine, taking into 



account the weight, inertia, and friction of every part of the 

 simple train of joints and elements. 



30. Loaded Dynamic Frame ichen neither e nor f are 

 attached to the Extremities of other Members of the Machine. 

 This case presents some geometrical peculiarities. Let the 



T 2 



