I have some solar panels mounted on a gazebo I wish to adjust the tilt of through the year. I imagine a gear system turned manually adjusting a v-bracket (bit like the temperature sensitive openers). A long rod would allow more than one bracket to be adjusted at the same time. I imagined the greenhouse openers would be this way but all I can find are the automatic (solar) openers. Can anyone point me to available parts or systems or designs for the mechanical openers. By the way the screw jacks are not suitable because the jacks extend below the rafter level but the v-brackets would be fine. I would appreciate any help that can be offered.