| 释义 |
rule-joint
[rule n. 17.]
A movable joint such as is used for measuring-rules. Also attrib.
1782Phil. Trans. LXXII. 385 In this arm..is a kind of rule joint at d, that the arm may give way easily if wanted. 1825J. Nicholson Operat. Mechanic 592 To make a rule joint for a window-shutter, or other folding flap. 1833Loudon Encycl. Archit. §84 To put inch clamped..folding shutters, with rule joints (joints like those of the common foot rule). 1875Knight Dict. Mech. 1927/1 A bit having a rule joint. 1966A. W. Lewis Gloss. Woodworking Terms 47 Rule-joint hinge, brass hinge with one long and one short leaf and with the countersinking for the screw heads on the opposite side to the knuckle. Ibid. 95 Stay, metal fitting which limits the movement of a door or lid, e.g. a shad stay, or a rule-joint stay. |