The Performance of Priva-tized Firms in the Czech Republic

A mechanical transmission which includes a first speed change section optionally providing a direct drive or an underdrive, a second speed change section driven by the first section and optionally providing a plurality of forward and reverse speed ratios, separate control levers for the first and second sections movable on a common axis, one lever being movable between two positions to condition the first section for direct drive when in one position and for underdrive when in the other position, the second lever being movable to a plurality of positions to condition the second section for one of its speed ratios in each position, and interlock means acting between the two levers to prevent movement of the levers for conditioning the second section for its higher ratios when the first section is conditioned for underdrive and to prevent conditioning of the first section for underdrive when the second section is conditioned for any one of its higher ratios.