The vertical support means includes a plurality of support columns positioned between {TAIL ~ the top side} of the guide member and a fixed plate secured to {HEAD ~ the housing} 
The vertical support means includes a plurality of support columns positioned between { TAIL ~ the top side } of the guide member and a fixed plate secured to { HEAD ~ the housing }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD