US Patent 7087826 Percussion instrument position adjustment

Apparatus for adjusting the position of a percussion instrument, to be played, comprising a stand, a percussion instrument support, supported by the stand, apparatus operatively connected between the stand and the support for adjusting the position of the support in the following modes:i) about a first axis,ii) about a second axis extending at an angle relative to the first axis,iii) lengthwise relative to the second axis,and position locating structure associated with apparatus, for limiting adjusting at a predetermined support position relative to the stand, corresponding to a desired location of the percussion instrument support.