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The inclination of the telescope and its level
can be miscellaneousd by means of a screw that rotates the frame around the horizontal
pin; another screw on the level allows adjustment of the latter with respect
to the telescope.
The slide, which has a screw that clamps it to the staff, is only for
the purpose of blocking the slide and, once blocked, allowing it to be
moved slightly up or down by means of the micrometric screw connecting
them.
The staff is free to rotate around its own vertical axis and has at the
base a screw that holds it to the tripod. Once it has been blocked in
a certain position it can be rotated slightly in either direction by means
of the horizontal micrometric screw.
To move the telescope to the desired position, both slide and cursor are
moved.
Movement of the entire system along the staff is facilitated by the fact
that this, by means of a string on a pulley at the top of the staff, is
balanced by a counterweight that is free to slide between two brass guides
on the other side of the staff.
...continues
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