{HEAD ~ A further object} of the invention is to provide {TAIL ~ a stand} that includes such a compensating device 
{ HEAD ~ A further object } of the invention is to provide { TAIL ~ a stand } that includes such a compensating device
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH