| 释义 |
ˈrag-wheel
[f. rag n.1]
1. A wheel having projections which catch into the links of a chain passing over it, as in a chain-pump; a sprocket-wheel.
1812Niles' Reg. II. 393/2 A rag wheel [of a mill machine] of three feet diameter is kept in complete motion. 1829Nat. Philos. I. Mechanics v. 21 (U.K.S.) An endless chain..is made to revolve on two wheels..called rag-wheels. 1830Kater & Lardner Mech. xviii. 249 In some cases the teeth of the wheel work in the links of a chain. The wheel is then called a rag-wheel. 1848Rep. Comm. Patents 1847 (U.S.) 79 The feeding is usually effected by a band taking into a ratchet, or rag wheel. 1873J. M. Bailey Life in Danbury 9 He employed a carpenter from a place twenty miles distant to make a new rag-wheel.
2. A polishing wheel composed of rags.
1884Knight Dict. Mech. Suppl. 736/1. |