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Portable Derrick Crane Patent

• CATEGORIES: Documents, Features • TAGS: .

Henry F Illies filed a patent for a portable derrick crane that could fit over a jeep on September 26, 1947.

“This invention relates to a derrick crane adapted to be mounted on a small motor vehicle and while adapted generally for supporting, raising and lowering or conveying heavy objects is especially adapted to provide a support for an’– auger such as is employed for digging post holes and by means of which the auger may be adjusta- -bly supported with respect to the vehicle, lowered gradually as it advances into the ground,”




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