W A U
embraces the above angles besides ¼° for run. If the locks are equal on each pallet, it proves that the lifts are also equal. This gives us a practical method of proving the correctness of the drawing; to do so, place the dividers on the locking circle
M N
at the intersection of
T A
and
V A
with it, as this is the extent of motion; transfer this measurement to
N
, if the actual lift is the same on each pallet, the dividers will locate the point which the locking corner