"Grasshopper-beam. a, rocking pillar; b, radius-bar of the parallel motion which secures verticality to the piston-rod. GRASSHOPPER-BEAM. A form of working-beam used in some steam-engines." -Whitney, 1911

Grasshopper-Beam

"Grasshopper-beam. a, rocking pillar; b, radius-bar of the parallel motion which secures verticality…