GLS 18 pavement crack router grooving machine
GLS 18 pavement crack router grooving machine,US3747981A - Pavement grooving machine - Google Patents A saw machine having a rotary abrasive blade for working a groove in pavement or the like is provided with means for laterally swivelling movement about the blade. The machine is adapted to be swivelled bodily, as during use as a pavement crack router, or to be propelled straight ahead.