Oakes mixer

Foaming with air is obtained in special mixers such as the Oakes mixer and the expansion takes place during gelation in hot air or a high-frequency oven. 

Any machine used for preparing foams, especially in the food industry. In batch aerators, the gas is usually whipped into the liquid. In continuous aerators, a mixing head whips the gas into the liquid under pressure. In this case, the foam expands as it leaves the machine. See also Oakes Mixer. 

After the compound is prepared, it is whipped either on a batch or continuous basis. The Oakes continuous mixer is the standard piece of equipment ia the iadustry. Then the gelling agents, ie, Na2SiFg and ZnO, are added, the foam poured iato molds and cured, and the product stripped from the mold for further cure. 

Figure 7.10 In-line dynamic mixer (Courtesy ofE. T. Oakes, Macclesfield, UK)...

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