derrickingn.adj.

/ˈdɛrɪkɪŋ/

Etymology: < derrick n. + -ing suffix¹, -ing suffix².

a. vbl. n. The action of operating the jib of a derrick-crane. Also attributive.

1888 Lockwood's Dict. Mech. Engin. at Derrick Portable cranes..are provided with movable jibs, whose mechanism for derricking is made in various types.

1911 C. W. Hill Electr. Crane Constr. iii. 31 An electric motor..was provided to drive the lifting and derricking motions.

1958 H. H. Broughton Electr. Cranes (ed. 3) xvii. 236 Derricking motion. The movement of a crane jib when it is pivoting in a vertical plane is known as derricking or luffing.

b. participial adj. Operating as a derrick.

ΚΠ

1940 Chambers's Techn. Dict. 236/1 Derricking jib crane, a jib crane in which the inclination of the jib..can be varied by shortening or lengthening the tie-ropes between post and jib.

1958 H. H. Broughton Electr. Cranes (ed. 3) xvii. 239 Hoisting rope is taken up which prevents the load from being lowered as it would be with ordinary derricking gear.

This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2021).

单词	derricking
释义	derrickingn.adj. /ˈdɛrɪkɪŋ/ Etymology: < derrick n. + -ing suffix¹, -ing suffix². a. vbl. n. The action of operating the jib of a derrick-crane. Also attributive. 1888 Lockwood's Dict. Mech. Engin. at Derrick Portable cranes..are provided with movable jibs, whose mechanism for derricking is made in various types. 1911 C. W. Hill Electr. Crane Constr. iii. 31 An electric motor..was provided to drive the lifting and derricking motions. 1958 H. H. Broughton Electr. Cranes (ed. 3) xvii. 236 Derricking motion. The movement of a crane jib when it is pivoting in a vertical plane is known as derricking or luffing. b. participial adj. Operating as a derrick. ΚΠ 1940 Chambers's Techn. Dict. 236/1 Derricking jib crane, a jib crane in which the inclination of the jib..can be varied by shortening or lengthening the tie-ropes between post and jib. 1958 H. H. Broughton Electr. Cranes (ed. 3) xvii. 239 Hoisting rope is taken up which prevents the load from being lowered as it would be with ordinary derricking gear. This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2021). < n.adj.1888
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