Gearings for reversal only

Full Title

Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion (speed-changing or reversing mechanisms F16H59/00 - F16H63/00) > using gears having orbital motion > Gearings having only two central gears, connected by orbital gears (F16H3/68 - F16H3/78 take precedence) > Gearings for reversal only