Pavement milling apparatus

In equipment for removing pavement, the combination comprising

• (a) a vehicle adapted to be driven over the pavement,
• (b) milling rotor means and drive means therefor, the milling rotor means including cutters projecting at the periphery of the rotor means for cutting the pavement as the rotor means is driven in rotation, and
• (c) structure on the vehicle carrying the milling rotor means for adjustable bodily displacement relative to the vehicle and to selected positions wherein vehicle weight is exerted downwardly on the milling rotor means during cutting of pavement,
• (d) said vehicle being oriented for generally longitudinally forward or rearward travel, and said milling rotor means includes primary and secondary milling rotors one of which is longitudinally offset relative to the other,
• (e) said structure including two first actuators respectively operatively connected with the rotors to displace them generally downwardly relative to the vehicle,
• (f) said structure including two linkages respectively suspending the two rotors for downward and forward swinging in response to said operation of the two first actuators, and
• (g) said structure including two primary members respectively suspending the two rotors for adjustable lateral displacement relative to the vehicle.

In equipment of the character described, and including a vehicle, the combination comprising

• (a) rotary cutter means to cut a longitudinal trench in pavement as the vehicle advances,
• (b) means to control the position of said cutter means to control the depth of the trench, and
• (c) means to control the position of said cutter means to control the lateral location of the trench relative to the vehicle,
• (d) said cutter means including two rotors carrying cutters, the two rotors offset from one another and being independently controllable as to their vertical positions, the two rotors confined at the same side of the vehicle and in general longitudinal alignment.