A groove 150 is formed into {HEAD ~ the sidewall} of {TAIL ~ the housing} 20 for receiving a slider member 152, which is rigidly mounted to the carriage member 148 
of
A groove 150 is formed into { HEAD ~ the sidewall } of { TAIL ~ the housing } 20 for receiving a slider member 152 , which is rigidly mounted to the carriage member 148
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH