French Coffee Makers, Nineteenth Century
1, 2—Improved French drip pots. 3—Persian design. 4—De Belloy pot. 5—Russian reversible pot. 6—New filter machine. 7—Glass filter pot. 8—Syphon machine. 9—Vienna Incomparable. 10—Double glass "balloon" device
FIRST ENGLISH COMMERCIAL COFFEE-ROASTER PATENT, 1824
Fig. 1—End elevation. Fig. 2—Front sectional view. Fig. 3—Front elevation, showing how the roasting cylinder was turned completely over to empty. Fig. 4—The examiner, or trier. Fig. 5—Tube (J) to be inserted in H of Fig. 6 to prevent escape of aroma
It was not until 1836 that the first French patent was issued on a combined coffee-roaster-and-grinder to François Réné Lacoux of Paris. The roaster was made of porcelain, because the inventor believed that metal imparted a bad taste to the beans while roasting.