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单词 heart wheel
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heart wheel
heart wheel n. Mechanics (now rare) = heart cam n.
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society > occupation and work > equipment > machine > parts of machines > other parts > [noun] > converters > cams
snail-cam1591
snail-work1591
snail1714
cam1777
heart wheel1786
snail-wheel1831
heart1834
heart cam1835
1786 Brit. Patent 1,564 (1856) 3 The heart wheel r, being fast to the wheel q, turns round with it on a pin.
1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) III. 997 The periphery of the heart-wheel..is seen to bear upon friction wheels.
1907 H. R. Carter Mod. Flax, Hemp, & Jute Spinning & Twisting vii. 114 The revolution of the heart wheel produces an up-and-down motion in the levers.
extracted from heartn.int.adv.
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更新时间:2025/2/24 12:32:23