Abstract: A steering mechanism for use on a pavement cutting machine or the like, the cutting machine having a pair of guide wheels which are coupled to the chassis of the machine through steering knuckles. The steering mechanism is operated by means of a fluidic actuator connected between the chassis and one of the steering knuckles. In order to insure that the guide wheels will turn together, the steering knuckles are interconnected by a pair of serially connected rods with the point of interconnection of the rods being the free end of a pivotal lever, the opposite end of the lever being connected to the chassis.

Abstract: A grooving depth indicator for a highway grooving or milling machine comprises a display device which is coupled by means of a cable to a mechanism which is employed to adjust the cutting depth of the machine. The display device includes an indicator scale which rotates relative to a zero marker, the scale being caused to rotate by a shaft on which a pulley is mounted. The coupling cable, which is maintained under tension by a spring bias, engages the pulley.