Peaucellier Straight Line Linkage

The Peaucellier linkage transforms a rotary input motion into an exact straight line output motion.

During the Industrial Revolution, mechanisms for transforming rotary motion into linear motion were an area of intense research. Applications for these mechanisms included guiding pistons of the early steam engines and manufacturing precision parts.

The first attempts to solve this problem included Watt's linkage, which only approximates a straight line, and the Sarrus linkage, which does