| 单词 | pinching bar |
| 释义 | > as lemmaspinching bar pinching bar n. now rare = pinchbar n. at pinch- comb. form . ΚΠ 1815 I. Landmann Treat. Mines 43 The excavation of the ground is begun by introducing horizontally above the lintel of the first frame the pinching bar, to make room for putting in a plank chamfered at the end. 1867 Sci. Amer. 7 Dec. 363/1 The method of holding the two ends of the cord forming the sheaf-band, by means of pinching bars placed at a short distance from each other. 1994 Official Gaz. (U.S. Patent Office) 1 Nov. 172/1 Expandable cylindrical chuck for a coiler or uncoiler..comprising..(g) a pinching bar connected to said chuck and adapted to perform a crosswise movement under control of said driving shaft. < as lemmas |
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