Ray T Pringle

US Patent:

40686795, Jan 17, 1978

Filed:

May 14, 1976

Appl. No.:

5/686467

Inventors:

Ray T. Pringle - Walla Walla WA
Kenneth R. Ames - Walla Walla WA

Assignee:

Frontier Machinery, Inc. - Walla Walla WA

International Classification:

B05B 312

US Classification:

137344

Abstract:

A tower drive mechanism is described for a self-propelled sprinkler system having a water conduit elevationally supported by spaced towers. Each tower has a frame with leg members extending downward and outward interconnecting with a cross axle tube. Tandem wheel assemblies are mounted on the frame adjacent respective ends of the axle tube. A single electric motor is connected to one of the wheel assemblies. An interconnecting drive shaft extends through the axle tube interconnecting the wheel assemblies so that the drive shaft does not become entangled with field debris or vegetation. The wheel assemblies and the motor have their individual worm gear reduction boxes.