| 摘要 |
A BURNER UNIT FOR GAS RANGES, HAVING (A) A FIRST PIPE FOR GAS-AND-AIR MIXTURE, (B) A SECOND PIPE FOR GAS-AND-AIR MIXTURE, (C) A CENTRAL NOZZLE MOUNTED ON THE FIRST PIPE, AND (D) AN ANNULAR CHAMBER CIRCLING ABOUT THE FIRST CENTRAL NOZZLE AND COMMUNICATING WITH SAID SECOND PIPE, SAID ANNULAR CHAMBER HAVING A NUMBER OF PASSAGES FORMED THEREABOUT FOR GAS-AND-AIR MIXTURE AND A SERIES OF HOLES FORMED THEREON FOR INDUCING FLAME FROM SAID CENTRAL NOZZLE TO SAID PASSAGES.(FIG. 2)
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