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单词 pedimechan
释义

pedimechann.

Origin: A borrowing from Greek, combined with an English element. Etymons: pedi- comb. form, Greek μηχανή.
Etymology: < pedi- comb. form + ancient Greek μηχανή machine n. Compare pedomotor n. and earlier velocipede n.
Obsolete. rare.
A kind of velocipede in which the forward pressure of the foot on a treadle rotated a fusee, whose motion was communicated to the wheel by a ratchet, and a spiral spring returned the fusee and treadle to their original positions.
ΘΚΠ
society > travel > means of travel > a conveyance > vehicle > vehicle propelled by feet > [noun] > cycle > bicycle > early type of
pedimechan1844
velocipede1850
boneshaker1874
spider1874
1844 Mechanics' Mag. 41 369 Hankins's Pedimechan or Spring Propeller.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2020).
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n.1844
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更新时间:2024/9/21 8:37:45