Abstract: Car washing apparatus including a primary arm pivotally supported at one end and extending rearwardly along the path of the car, a secondary arm pivotally supported on the free end of the primary arm and extending across the path of the car, and a rotary brush on the free end of the secondary arm. A secondary cylinder is connected between the primary and secondary arms, and the rod and blind ends of the cylinder are connected through flow controls to the control inlets of a 4-way valve. The 4-way valve controls a primary arm cylinder which retracts and extends the primary arm as required. When a car strikes the brush, the pressure increase at one end of the secondary arm cylinder pilots the 4-way valve, operating the primary arm piston and cylinder.

Abstract: Vehicle washing and drying apparatus including an inverted U-shaped frame adapted to roll over a vehicle while it is in a stationary position and having mounted thereon a fluid spray device for spraying cleaning fluid onto the surface of the automobile. A drying device is also mounted on the frame and includes side nozzles for blowing drying air onto the sides of the vehicle and a top nozzle projecting downwardly from the top of the frame and intermediately articulated so the lower portion thereof forms a normally downwardly facing horizontally elongated lower level orifice for directing drying air onto the tops of low profile vehicles. The lower portion of such nozzle may be folded away to clear higher profile vehicles and exposes an upper level horizontally elongated orifice which directs drying air onto the tops of higher profile vehicles.