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Nuremberg, Germany, XVII century, fighting flames on a roof with water hoses.
Nuremberg, year 1658, men at work with water hoses to extinguish flames high in a building roof
Chemistry, Woulff bottles to channel gases through liquids
A set of Woulff bottles, commonly used to prevent liquids from entering vacuum pumps, or to channel gases through liquids, trapping hazardous substances and preventing pressure buildup.
Bakery – margarine preparation, margarine wash machine and separation of starch flour from bakery dough with water
Illustration describing bakery procedures for margarine and starch production from dough separation