APPLIANCES FOR PREPARATION OF DRESSINGS 115 lnit //., is closed, in order that the strain ma\ enter the tup of theapparatus ami force the contents through the bottom outlet. Aspecial connection for the admission of water, a pressure gauge,safety valve, and air valve, are also provided on the cover,… … Fio. 28. —Hampels starch cooker. For this purpose the starch is introduced into the copper pana. through an opening in the cover, which is also fitted with asafety valve and pressure gauge. The vertical shaft A, with thestirrers e, is then set going at a speed of 30 turns per minute, bymeans of the…
Textile finishing
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