Combinations of an internal-combustion engine together with means for generating and supplying a combustible mixture thereto, the engine and generating apparatus being ordinarily capable of separation, but disclosed and claimed in combination, and the elements collectively forming a complete plant for developing and applying power. In the power plants occurring herein the various elements constituting the generating portion of the plant are of ordinary or commercial form and if presented by themselves would be classified in other classes or subclasses. Patents covering the engine and generating device together are classified in the class of internal-combustion engines, because all the elements of the plant are so correlated as to develop and apply power by means including an internal combustion engine.
(1) Note. The devices occurring in this subclass differ from many of the engines in subclasses of oil engines in that in an oil-engine the source of power is always a liquid hydrocarbon and the elements concerned with the vaporization of the oil and those constituting the engine are so designed with reference to each other as to form a single unitary machine incapable of being separated into its component sets of elements without defeating the operation of the engine as a whole in the manner contemplated.
