{HEAD ~ at least one reinforcing frame rib}, attached to {TAIL ~ said stationary cylindrical casing} between said pair of opposite gables, 
attached to
{ HEAD ~ at least one reinforcing frame rib } , attached to { TAIL ~ said stationary cylindrical casing } between said pair of opposite gables ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH