The Harrisburg Foundry & Machine Works was in business by 1872 and still active in 1911; they were likely active both before and after those dates. They made horizontal steam engines of all kinds, including tandem engines and Corliss engines. In their earlier years they also made a full line of iron-working machinery including planers, shapers, slotters, and horizontal and vertical drilling machines. They manufactured the D. C. Cummings patent vise, in the March 1874 Manufacturer & Builder.

Illustration from an article in the 1890 edition of The Steam User

Information Sources

• Text ad in the 1872 edition of the Manual of the Railroads of the United States. "D. A. Bolt, superintendent".
• Articles in March 1874 and February 1875 Manufacturer and Builder on this firm's parallel machinist's vise and 36-inch upright drill press, respectively.
• July 1894 The American Engineer and Railroad Journal.

  SIMPLE AND COMPOUND HARRISBURG IDE AND IDEAL ENGINES. By the Harrisburg Foundry & Machine Works, Harrisburg, Pa. 16 pp. 3½ X 6 in. Having exhausted our superlatives in the preceding notice, we feel like saying ditto to the little book now before us. In this the engines built by this company are illustrated by half-tone engravings showing perspective views of the "Ide and Ideal automatic engines" and "Ideal tandem compound engine," and three views of "Ideal" engines connected direct to dynamos. There are also views of an "Ide" and a compound engine connected in the same way. The principal dimensions are given opposite these engravings, but there is no other description. The printing, engraving and general "get-up" of this book are all excellent.

• American Steam Engine Builders: 1800-1900 by Kenneth L. Cope, 2006 page 112
• Advertisement in the September 1911 Engineering Magazine showing the simple and compound "Fleming-Harrisburg engines", available in single- and Corliss-valve versions.
• D. C. Cummings patent parallel leg vise is pictured in Garage Journal.