1819 T. S. Peckston xvi. 303 A gas-cock with one-sixteenth of an inch aperture, is amply sufficient for supplying one Argand burner.
1910 E. O. Hiller 11 Turn the gas cock of the lighted burner to the right, thus shutting off the gas.
2000 (Nexis) 8 July Drawing up lists for Nigella about where the gas cock is and what the little fuse box next to the two big ones is for.