Then, ends of the primary struts 311, 313, and the secondary bars 312, 314 are pivotally interconnected with {TAIL ~ the four assisting beams} 321, 322, 323, and 324 by {HEAD ~ pinshaft} 350 
Then , ends of the primary struts 311 , 313 , and the secondary bars 312 , 314 are pivotally interconnected with { TAIL ~ the four assisting beams } 321 , 322 , 323 , and 324 by { HEAD ~ pinshaft } 350
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH