| 摘要 |
<p>The heater has a base on which is mounted a tubular radiant heating element, and two reflective panels. The latter are mounted so that they may be pivotally adjusted about axes parallel to the heating element. The reflective panels may be locked in a desired position, a third panel extending between them behind the heating element. Each panel is pref. formed of folded sheet metal, the edges of the sheets adjacent the panel mounting rods being formed into part circular lips which grip the rods.</p> |
