{HEAD ~ A tilt bracket} is pivotably mounted to the bottom bracket and slidably mounted to {TAIL ~ the adjustable bracket} so that as the annular collar is rotated about the central spindle to raise and lower the adjustable bracket, the tilt bracket tilts with respect to the longitudinal axis of the spindle 
{ HEAD ~ A tilt bracket } is pivotably mounted to the bottom bracket and slidably mounted to { TAIL ~ the adjustable bracket } so that as the annular collar is rotated about the central spindle to raise and lower the adjustable bracket , the tilt bracket tilts with respect to the longitudinal axis of the spindle
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH