英语词汇“head frame”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

head frame n. (a) a framework at the top or head of something; spec. one at the top of a mine shaft or pit containing winding gear; (b) (in a sawmill) a frame of a carriage on which logs sit and are held (rare); (c) a framework for holding a person's head immobile.

ΚΠ

1797 W. Pain Pain's Brit. Palladio 12 The dimensions supposed to be 6 feet.., the circular head-frame to be veneered with wainscot.

1853 Rec. School of Mines I. 340 Each shaft being intended for a single rope or ‘band’, is surmounted by a head-frame carrying one broad pulley of cast iron.

1878 Sci. Amer. 11 May 291/1 The head frame..is supported by track wheels secured to axles.

1897 Patents for Inventions: Abridgm. Specif. Class 51, Furnaces & Kilns 295/1 Relates to convertible bedsteads and tables. The head frame i, hinged at k.., may fold down..to form a table top.

1902 S. H. Monell Syst. Instr. X-ray Methods ix. 64 To hold the head with absolute fixation while making two radiographs of the eye Davidson devised a head-frame which serves the purpose.

1950 Pop. Mech. Sept. 240/2 One old jungle gold prospector rigged a crude head frame of saplings over a deep excavation and dropped a bucket from a pulley.

1996 E. Watanabe in R. H. Taylor et al. Computer-integrated Surg. xx. 326/2 Because no head frame is necessary during preoperative CT scanning, the patient is spared unnecessary pain.

2010 Review (Rio Tinto) Sept. 19/2 Also under construction were the 31 storey headframe and ore conveyor for Shaft 2.

单词	head frame
释义	> as lemmas head frame head frame n. (a) a framework at the top or head of something; spec. one at the top of a mine shaft or pit containing winding gear; (b) (in a sawmill) a frame of a carriage on which logs sit and are held (rare); (c) a framework for holding a person's head immobile. ΚΠ 1797 W. Pain Pain's Brit. Palladio 12 The dimensions supposed to be 6 feet.., the circular head-frame to be veneered with wainscot. 1853 Rec. School of Mines I. 340 Each shaft being intended for a single rope or ‘band’, is surmounted by a head-frame carrying one broad pulley of cast iron. 1878 Sci. Amer. 11 May 291/1 The head frame..is supported by track wheels secured to axles. 1897 Patents for Inventions: Abridgm. Specif. Class 51, Furnaces & Kilns 295/1 Relates to convertible bedsteads and tables. The head frame i, hinged at k.., may fold down..to form a table top. 1902 S. H. Monell Syst. Instr. X-ray Methods ix. 64 To hold the head with absolute fixation while making two radiographs of the eye Davidson devised a head-frame which serves the purpose. 1950 Pop. Mech. Sept. 240/2 One old jungle gold prospector rigged a crude head frame of saplings over a deep excavation and dropped a bucket from a pulley. 1996 E. Watanabe in R. H. Taylor et al. Computer-integrated Surg. xx. 326/2 Because no head frame is necessary during preoperative CT scanning, the patient is spared unnecessary pain. 2010 Review (Rio Tinto) Sept. 19/2 Also under construction were the 31 storey headframe and ore conveyor for Shaft 2. extracted from headn.¹ < as lemmas
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> as lemmas