(under subclass 179.1) Apparatus wherein the engine is started by introducing and burning a combustible mixture within the working cylinder, and the starting means includes either (1) a supplemental igniting device separate and distinct from the regular igniting device of the engine and designed for temporary use at starting or (2) a device independent of the engine for actuating the regular igniting device.
(1) Note. The combustible mixture may be supplied to the working cylinder by separate and distinct means as in subclasses 179.7+, or it may reach the cylinder by way of the regular supply passage and inlet valve of the engine in their ordinary manner.
(2) Note. This subclass does not include a device for delaying the ignition of the combustible mixture to facilitate the starting of the engine, but which device is not in itself capable of igniting the charge. For such device, if manually operated, see subclass 164, and if automatically operated, see subclasses 406+ in this class.
(3) Note. For electrical igniting devices provided with interchangeable sources of electricity, one for use at starting and the other in the normal operation of the engine, see this, class subclasses 147 and 594+.
