doubletree

[ duhb-uhl-tree ]

Phonetic (Standard)IPA

noun

a pivoted bar with a whiffletree attached to each end, used in harnessing two horses abreast.

doubletree

/ ˈdʌbəlˌtriː /

a horizontal pivoted bar on a vehicle to the ends of which swingletrees are attached for harnessing two horses side by side

1840–50, Americanism; modeled on singletree

Across the doubletree behind them hung the limp form of their driver, a great, gaping wound in his head.

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.

"Well, he started off with a cracked doubletree," he said slowly.

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