petcockn.

Brit.

/ˈpɛtkɒk/, U.S.

/ˈpɛtˌkɑk/

Origin: Apparently formed within English, by compounding. Etymons: pet n.², cock n.¹

Etymology: Apparently < pet n.² + cock n.¹, perhaps so called on account of its small size.

Now chiefly North American.

A small valve, or tap fastened in a pipe, cylinder, etc., for drainage or release of pressure.

ΘΚΠ

society > occupation and work > equipment > machine > machines which impart power > engine > steam engine > [noun] > parts of > valves

petcock1838

tail-valve1839

sea-cock1855

robinet1867

test-cock1877

Walschaerts1880

1838 W. P. Marshall Descr. Patent Locomotive Steam Engine of Messrs' R. Stephenson & Co. 16 (note) The cause of this stoppage of the action was at length discovered, and the pet cock applied, by opening which the steam in the pump was let out, and the action renewed.

1889 P. N. Hasluck Model Engineer's Handybk. 107 The pet-cock often fixed to a feed pump barrel is used to test the action of the pump (to see whether it is drawing water), and to draw off confined steam or air.

1919 Delineator Nov. 54/2 On the pressure-cooker there are always a steam-gage, a pet-cock and a safety-valve... The pet-cock is for the purpose of letting off steam when the processing is over.

1969 J. Ashbery & J. Schuyler Nest of Ninnies v. 64 ‘I'm afraid that merely tampering with that petcock is no solution.’.. An abrupt gust of steam issued from the radiator, giving weight to his words.

2003 Orlando (Florida) Sentinel (Nexis) 5 Mar. (Visitor Guide) 1 I..didn't know what a petcock was, so I kept kick starting the bike, and it would run for a few seconds, then die.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	petcock
释义	petcockn. Brit. /ˈpɛtkɒk/, U.S. /ˈpɛtˌkɑk/ Origin: Apparently formed within English, by compounding. Etymons: pet n.², cock n.¹ Etymology: Apparently < pet n.² + cock n.¹, perhaps so called on account of its small size. Now chiefly North American. A small valve, or tap fastened in a pipe, cylinder, etc., for drainage or release of pressure. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > steam engine > [noun] > parts of > valves petcock1838 tail-valve1839 sea-cock1855 robinet1867 test-cock1877 Walschaerts1880 1838 W. P. Marshall Descr. Patent Locomotive Steam Engine of Messrs' R. Stephenson & Co. 16 (note) The cause of this stoppage of the action was at length discovered, and the pet cock applied, by opening which the steam in the pump was let out, and the action renewed. 1889 P. N. Hasluck Model Engineer's Handybk. 107 The pet-cock often fixed to a feed pump barrel is used to test the action of the pump (to see whether it is drawing water), and to draw off confined steam or air. 1919 Delineator Nov. 54/2 On the pressure-cooker there are always a steam-gage, a pet-cock and a safety-valve... The pet-cock is for the purpose of letting off steam when the processing is over. 1969 J. Ashbery & J. Schuyler Nest of Ninnies v. 64 ‘I'm afraid that merely tampering with that petcock is no solution.’.. An abrupt gust of steam issued from the radiator, giving weight to his words. 2003 Orlando (Florida) Sentinel (Nexis) 5 Mar. (Visitor Guide) 1 I..didn't know what a petcock was, so I kept kick starting the bike, and it would run for a few seconds, then die. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.1838
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