Abstract
A push‐type garden cultivator with a single wheel was modified to carry a pressurized air tank, a spray solution tank, adjustable boom, and controls. A ground speed indicator was made from a 6‐Volt bicycle generator connected to a 0 to 3 Volt A.C. panel meter and powered by friction against the bicycle tire. The electrical current generated was proportional to ground speed and indicated travel rate. The entire unit was lightweight, easily disassembled for clean‐up, transport or storage, and was constructed with parts that were available from local retail stores
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