shear-legsn.

Etymology: shear n.¹

A device consisting of three poles of wood or iron bolted together at their upper ends and extended below, carrying tackle for raising heavy weights for machinery; cf. shear n.¹ 4.

ΘΚΠ

society > occupation and work > equipment > lifting or hoisting equipment > [noun] > shear-legs or gin

gin1398

lading gin1497

raising gin1497

shearsa1625

Jack1686

triangle1691

crab1739

shear-legs1860

1860 Eng. & Foreign Mining Gloss. (new ed.) (Newcastle Terms) 62 Shear-legs.

1874 J. H. Collins Princ. Metal Mining (1875) viii. 49 The boring tools are sometimes worked simply by a rope passed over a shearlegs or triangle.

1900 Engin. Mag. 19 675 At the Chicago yard there is a steel sheer-legs 100 feet high and of 100 tons capacity.

This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2018).

单词	shear-legs
释义	shear-legsn. Etymology: shear n.¹ A device consisting of three poles of wood or iron bolted together at their upper ends and extended below, carrying tackle for raising heavy weights for machinery; cf. shear n.¹ 4. ΘΚΠ society > occupation and work > equipment > lifting or hoisting equipment > [noun] > shear-legs or gin gin1398 lading gin1497 raising gin1497 shearsa1625 Jack1686 triangle1691 crab1739 shear-legs1860 1860 Eng. & Foreign Mining Gloss. (new ed.) (Newcastle Terms) 62 Shear-legs. 1874 J. H. Collins Princ. Metal Mining (1875) viii. 49 The boring tools are sometimes worked simply by a rope passed over a shearlegs or triangle. 1900 Engin. Mag. 19 675 At the Chicago yard there is a steel sheer-legs 100 feet high and of 100 tons capacity. This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2018). < n.1860
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