Origin of doubletree
Examples from the Web for doubletree
Historical Examples of doubletree
The doubletree served as a lever on which to mount two singletrees.
Three horses drew the plow, which has three singletrees and one doubletree.
The arms of the tongue are connected by a crossbar, to which the doubletree is pivoted by a hammer bolt.
Across the doubletree behind them hung the limp form of their driver, a great, gaping wound in his head.Castle Craneycrow
George Barr McCutcheon