Editing Atkinson cycle (section)

==Patents==
The 1887 patent (US 367496) describes the mechanical linkages necessary to obtain all four strokes of the four-stroke cycle for a gas engine within one revolution of the crankshaft.<ref name=pat367496>{{cite patent|country=US|number=367496|inventor=J. Atkinson|title=Gas Engine|gdate=1887-08-02|url=https://www.google.com/patents/US367496}}</ref> There is also a reference to an 1886 Atkinson patent (US 336505), which describes an [[opposed-piston engine|opposed-piston]] gas engine.<ref name=pat336505 >{{cite patent|country=US|number=336505 |inventor=J. Atkinson |title=Gas Engine |gdate=1886-02-16}}</ref> The British patent for the "Utilite'" is from 1892 (#2492).