The Snapper, Design and Development of a Self-Engaging Mechanical Transmission

A new concept of a mechanical transmission has been developed using engine synchronization and frictional blockers to control engagement. A history of this development is herein given from the earliest concept to the present state as well as a projection of future possibilities.

This approach is directed toward fulfilling the requirements that have caused an interest in heavy-duty automatic transmissions for trucks and does this with little penalty in expense or complexity.