Allen was awarded almost 300 patents for a wide range of farming machinery, including the fertilizer drill, seed drill, potato digger, cultivator, furrower, pulverizer, grass edger and numerous other farm implements. In order to provide year-round employment for his workers producing farm equipment, Mr. Allen sought to create a product that could be sold during the winter.
Allen was granted many patents for various farming devices like the fertilizer drill, seed drill, potato digger, cultivator, furrower, pulverizer, grass edger and other farm tools. To provide employment year-round for his workers manufacturing agricultural equipment, Mr. Allen intended to create a product that could be sold during winter.