Another toroidal engine is the one made by this manufacturer around 1912-13, with a Beck-like theory.

"Esselbe Toroidal"

-To the right we can see the carburetor, the magneto and the accessory box.

-He also made a rotary radial engine at the same time. It had intake ports at the base of the cylinder like the current 2-stroke engines.

"Esselbé rotary"

-In a later information we see that the Esselbe name is accented in the last letter: Esselbé.

-The seven-cylinder rotary gave 65 hp at 1,250 rpm.

"Esselbe frame-side view"

-The base of the cylinders was octagonal (heptagonal) and they held the cylinders inside them. It had a Bosch magneto.

From Appendix A7/6: Below we show a new more detailed photograph of the toroidal motor mentioned in the main text, and below that one an outline of the inner part.

"View of this interesting engine"

"Esselbe toroidal engine outline"

From Appendix 9: New photo of the radial-rotary Esselbe engine, somewhat better detailed.

"The engine and its light and curious connecting-rod system"