Cranks or pins attached to the two shafts move the two ends of a combining lever ( sometimes referred to as a whippletree ) sinusoidally; if the dimensions are chosen correctly, the midpoint of the rod moves in a way that simulates the equation of time.
12.
Thus, with two animals, each will have its own whippletree, then a further whippletree will balance the loads from their two whippletrees & ndash; this arrangement is sometimes known as a " double-tree ", or for the leaders in a larger team, " leader-bars ".
13.
Thus, with two animals, each will have its own whippletree, then a further whippletree will balance the loads from their two whippletrees & ndash; this arrangement is sometimes known as a " double-tree ", or for the leaders in a larger team, " leader-bars ".
14.
Thus, with two animals, each will have its own whippletree, then a further whippletree will balance the loads from their two whippletrees & ndash; this arrangement is sometimes known as a " double-tree ", or for the leaders in a larger team, " leader-bars ".
