The stiffening members 30 and 32 are {TAIL ~ each} in {HEAD ~ the form} of an inverted u shaped channel having its legs welded to the housing top 
The stiffening members 30 and 32 are { TAIL ~ each } in { HEAD ~ the form } of an inverted u shaped channel having its legs welded to the housing top
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH