| 单词 | rising butt |
| 释义 | > as lemmasrising butt rising butt n. a hinge with a spiral joint which raises the door slightly as it opens; also rising butt hinge. ΘΚΠ society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > hinge > rising or falling hinge falling hinge1777 rising hinge1798 rising butt1836 1836 L. Hebert Engineer's & Mechanic's Encycl. I. 675 Those hinges termed rising-butts, whose rubbing surfaces move in a spiral, or rather a helical line upwards on opening the door [etc.]. 1866 Tomlinson's Dict. Arts I. 848/1 Mr. Redmund's hinges are termed rising butts;..when the door is opened it is lifted up from the floor. 1944 D. E. Warland Teach yourself Constructional Details vii. 104 Rising butts are used where it is required to raise a door when it opens so that it may clear a carpet, etc., and to make the door self-closing. 1978 Popular Science May 150/2 The rising butt is an ingenious hinge that automatically lifts a door over thick carpeting or uneven flooring to eliminate jamming or scraping. 2004 Pop. Mech. 146/2 Because some of the floors are uneven, I would like to replace the door hinges with rising butt hinges. < as lemmas |
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