N
should stand 5½ + 3 − 5⅛ = 3⅜° above
D A
. We can prove it by the lock, namely: 3⅜° + 1¾ = 5⅛°, half the remaining motion. This shows how simple it is to draft pallets in various positions, remembering always to use the tangents to the primitive circle as measuring points. We have fully explained how to draw in the draft angle on the pallets when unlocked, and do not require to repeat it, except to say, that most authorities draw a tangent
R N
to the locking circle
M N
, forming in other words, the right angle
R N A
, then construct an angle of 12° from