two matching c. 1930's american antique industrial refinished cast iron interior industrial line shaft ceiling support brackets with bolted couplers

pair of heavy duty american depression era c. 1930's original and intact interior factory belt drive line shaft ceiling-mount brackets designed and fabricated by the drive-all mfg. co., detroit, mich. the matching cast iron brackets with detachable couplers have been cleaned (i.e., painstakingly degreased) and brushed down to bare metal. a cleat coat lacquer was then applied to prevent surface corrosion. the two identical factory machine shop brackets were apart of an elaborate early belt-driven lathe machine system no longer in use. salvaged from a recently shuttered chicago area factory complex. drive-all manufacturing co. was started in 1932 by arthur haskell in detroit, mii. haskell designed a multi-speed gearbox to replace the variable speeds created by a belt drive. their business greatly expanded throughout the 20th and 21st century. priced for the pair. measures 13 x 4 x 15 inches