This document describes a Manuscript Collection held by theSpecial Collections Department
Restrictions: This collection is open for research.
This collection is open for research.
Digital Surrogates: Except where indicated, this document describes but
does not reproduce the actual text, images and objects which make up this
collection. Materials are available only in the Special Collections
Department. Copyright: Please
read The University of Iowa Libraries' statement on "Property Rights, Copyright Law, and Permissions to Use
Use of Collections: The University of Iowa Libraries supports
access to the materials, published and unpublished, in its collections.
Nonetheless, access to some items may be restricted by their
fragile condition or by contractual agreement with donors, and
it may not be possible at all times to provide appropriate machinery
for reading, viewing or accessing non-paper-based materials.
Please read our Use of
The Blackhawk Foundry and Machine Company was founded in 1920 as a division of Voss Manufacturing Company that produced and sold appliances. During WWII the foundry was a supplier for the United States Navy and Air Force. These records are from the years when the Blackhawk Foundry was owned by Walter K. Voss. Ben Butterworth became the owner and President in 1954 and, after his death in 1968, the foundry was purchased by Jim R. Grafton Sr. In 1990 Jim Grafton Jr. became president and in 1998, the owner.
A. Neville, September 2005
papers were collected for the University of Iowa Libraries by George
Sheets in the late 1950s.
George Sheets in the late 1950s.
to Internet: October 2005
Blueprints. Comparisons of quarterly average actual costs for 1947 with handwritten notes. Four items
Costs and overhead reports, January 1, 1945 -- December 31, 1951. Eight items
Letter to Life Magazine, June 17, 1952, from Walter Voss
Pamphlets and promotional materials. Five items
Blackhawk Foundry and Machine Company, panoramic, undated
No description, undated
Pouring aluminum into molds, undated
Core room and four core blowers, undated
Four photos in a series, one core blower working, undated
Core maker working (Paul Templin), undated
Wide view, employees working, undated
Wide view, gray iron molds and pouring, undated
Wood and plate pattern facilities, with employees Clarence Rice, Loyd Reed, William Buese, Paul Johnson, Al Ericksen, and Al Lootens, undated
Large mold, with employees Roy Carpenter and Watkins, undated
Cutting machine, employee Joe Beuneur, undated
Cleaning castings, employee Claude Means, undated
Employee cleaning and finishing castings, January 1948
Laboratory, January 1948
Core baking ovens with employee, January 1948
Lowering castings into the Linberg heat treat furnace, with employee, undated
Tensile strength testing machine, January 1948
X-ray testing machine, undated
Employee sandblasting casts, undated
Overhead sand hoppers (?), with employee, undated
Dumping of waste off casts, with employee, undated
Wide view of machines, undated
Wide view of aluminum foundry, undated
Closeup of core ready for the ovens, undated
Large casting machine, with employees John McCartney, Jim Watkins, Ray Hemingsen, and Ray Bang, undated
Core maker, Paul Templin, undated
Final check, Al Ericksen, undated.
Casts and molds
Nineteen items, undated
Speech and miscellaneous