Hallis D Campbell

Title: Hallis D Campbell: Innovator in Agricultural Machinery

Introduction

Hallis D Campbell is a notable inventor based in West Bend, Wisconsin, recognized for his contributions to agricultural machinery. With a total of four patents to his name, Campbell has made significant advancements in the design and functionality of rotary crop balers.

Latest Patents

One of Campbell's latest inventions is a rotary crop baler that features a unique pickup mechanism at the front, which discharges crop material rearward. This design includes crop guiding means and a feed roller that propels the material further back. Adjacent to the feed roller is a bale forming roller, which has a diameter approximately twice that of the feed roller. This roller rotates in the same direction and at a similar or slightly faster peripheral speed. The bale compacting belt assembly is designed with an expandable lower stretch defined by two rollers, facilitating the initial core formation of the bale.

Another significant patent is for a rotary baling machine that utilizes dual belt driving means with overrunning capabilities. This machine is designed to form large cylindrical bales of cut crop material, such as hay. It employs a conveyor belt and an oppositely moving containing belt to rotate the hay and form the bale within a baling compartment. The containing belt surrounds the bale as it increases in size, compacting the crop to ensure proper density. The design includes elongated rollers that drive the belts and an overrunning sprocket to manage potential overloading.

Career Highlights

Hallis D Campbell is associated with Gehl Company, where he has contributed to the development of innovative agricultural equipment. His work has significantly impacted the efficiency and effectiveness of crop baling processes.

Collaborations

Throughout his career, Campbell has collaborated with notable colleagues, including Donald E Burrough and Dean E Seefeld. Their combined expertise has fostered advancements in agricultural technology.

Conclusion

Hallis D Campbell's innovative spirit and dedication to improving agricultural machinery have led to significant advancements in the field. His patents reflect a commitment to enhancing the efficiency of crop baling, making a lasting impact on the industry.