1. cam and gear mechanism for the generation of a non-uniform rotation (with two cogs) from a uniform rotation

Cam and gear mechanism for the transformation of a uniform rotation into a non-uniform (intermittent) rotation

2nd Roberts-Chebyshev theorem: generation of a coupler curve be three different four-bar linkages

Roberts-Chebyshev theorem: generation of a coupler curve be three different four-bar linkages

Double rocker as straight guide gear

The animation shows a four bar link (double rocker) as a straight guide gear, as used in luffing slewing cranes. The model from which the animation was created can be found in the gearbox collection of the Department of Machine Elements and Transmission Technology at HTWK Leipzig This animation shows a four bar linkage (double rocker) as straight line mechanism. Such linkages are used in level luffing cranes. The original model is part of the mechanism collection of the chair in machine elements and mechanism theory at the HTWK Leipzig.