N
will occupy when locked; this, in the present case, will be at an angle of 1¾° below the tangent
D A
. By this simple method, the correctness of our proposition that the loss of lift should be measured from the outside circle of the wheel, can be proven. We often see the loss measured for the engaging pallet on the primitive circumference
G H
, and on the real circumference for the disengaging; if one is right then the other must be wrong, as there is a noticeable deviation of the tangent
C A
from the primitive circle
G H
at the intersection of the locking circle