An old steam preboarding machine used for shaping hosiery needed to be replaced. - A specially-built preboarding oven equipped with 108 Chromalox Electric Radiant Heaters. In this process, hosiery passes through oven between vertically mounted heaters on metal forms. Air enters the top of the oven in a plenum, then is channeled down over the forms and carried out the bottom. The production rate is 38 to 48 dozen pairs per hour depending upon the wool content of the hose. The oven operates 24 hours per day and is shut down only over weekends. This eventually will be a closed system with some air recycled to temper the air on cold days and lower the relative humidity on very humid days.

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