Found in 3 Collections and/or Records:
The Heintz Manufacturing Company was originally organized by Leo Heintz in Philadelphia in 1921. The firm initially manufactured all-steel pre-assembled truck bodies but later expanded to produce a wide range of pressed sheet-metal products. The records primarily focus on the company’s contractual obligations with the US Navy during World War II; employee retirement and pension plans; descriptions of various welding processes and tools, and material related to the licensing of cold welding under the trademark, "Koldweld."
Lukens Steel Company was a medium-sized producer of specialty steel products and one of the top three U.S. producers of steel plate. The Lukens Steel Company records documents all aspects of the business from the early nineteenth century through the 1970s.
Lukenweld, Inc. was the first U.S. commercial shop to cut and fabricate shapes from steel plate by arc welding. The records are files of Robert C. Sahlin (1896-1967), a member of Lukenweld's sales staff. Sahlin's files record his dealings with Lukenweld's customers and his other activities as a salesman. Most Lukenweld orders were custom work, fabricating individual machine parts, so there was frequent interplay between sales and engineering staff.