A work station system comprises {TAIL ~ a frame substructure} for holding aloft {HEAD ~ a horizontal axial shaft} 
A work station system comprises { TAIL ~ a frame substructure } for holding aloft { HEAD ~ a horizontal axial shaft }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD