Definition of "Primus"

Varya walked past slowly, idly peeping into each of them. There was a vendor of Turkish delight and halvah. A haberdasher's stall. A cobbler. A whitesmith. A repairer of Primuses and oil stoves.

1989, Aleksandr Solzhenitsyn, translated by H. T. Willetts, August 1914, Farrar, Straus and Giroux, page 53