| 摘要 |
In an outdoor type gas fired cooker supported on a hollow stanchion containing a valve for each of a plurality of burner sections and a mixing tube extending between each valve and a burner section, the stanchion having an opening for access to the valve controls and shuttered primary air openings in the mixing tubes, the improvement wherein the upstream ends of the mixing tubes are secured against displacement relative to the valve outlets owing to thermal warpage by a strut-tie member secured to the mixing tubes adjacent the primary air shutters, this member having an extension which passes through a slot in a wall of the cooker to facilitate insertion of the mixing tubes into the stanchion only when the shutters are facing in the proper direction for access through the stanchion opening.
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