A clack-valve; = clack, n. 5. Obsolete.
| 单词 | θ212637 |
| 释义 | society > occupation and work > equipment > pump > [noun] > valves (10) clap1626 A clack-valve; = clack, n. 5. Obsolete. clack1634 A form of valve in pumps, etc., consisting of a flap, hinged at one side, covering the aperture, which is opened by the upward motion of the… clapper1769 The clack-valve of a pump. Obsolete. butterfly valve1809 †(a) a pair of flap valves consisting of a single piece of flexible material (typically leather) fastened down in the middle to form a hinge (obsolete… suction valve1831 (a) the valve at the bottom of the cylinder of a suction pump, below the piston; (b) the valve in a steam engine through which the water is drawn… clack-valve1850 see 5. shoe-valve1858 (see quot. 1875). butterfly clack1859 a pair of flap valves consisting a single piece of flexible material (typically leather) fastened down in the middle to form a hinge; = butterfly… trap-valve1877 see quot. Subcategories:— case containing (1) |
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