Fertilizer spreader or seed drill has applicator operated by drive wheel mounted on arm and which moves over soil, wheel being driven by chain drive whose chains move through tubes mounted on arm

摘要

The fertilizer spreader or seed drill has an applicator operated by a drive wheel (2) which is mounted on an arm (1) and moves over the soil. This is driven by a chain drive (4, 7, 9) whose chains move through tubes (11) mounted on the arm.