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Mss:51 1881-1921 W529

Westinghouse Machine Company. Westinghouse Machine Company engine records, 1881-1921 (inclusive): A Finding Aid

Baker Library Special Collections, Harvard Business School, Harvard University


Harvard Business School, Boston MA 02163.

© President and Fellows of Harvard College

Descriptive Summary

Call No.: Mss:51 1881-1921 W529
Repository: Baker Library Special Collections, Harvard Business School, Harvard University
Title: Westinghouse Machine Company engine records
Date(s): 1881-1921
Quantity: 16.5 linear feet (33 volumes)
Language of materials: English
Abstract: The Westinghouse Machine Company engine records consist of repair records for equipment produced between 1881 and 1921.


Gift of Newcomen Society, 1999.

Processing Information:

Processed: August 2004
By: Timothy J. Mahoney

Processing Note:

The volumes were housed in protective acid-free boxes.

Conditions Governing Access:

Collection is open for research. Materials stored onsite. Please contact specialcollectionsref@hbs.edu for more information.

Preferred Citation:

Cite as: Westinghouse Machine Company Collection, Baker Library, Harvard Business School.

Historical Note:

The Westinghouse Machine Company was organized in 1881 as a manufacturer of steam engines, gas engines, steam turbines, and other mechanical equipment. The firm was part of the family of companies founded by the inventor George Westinghouse. Its factory was located at the Westinghouse Works in East Pittsburgh, Pennsylvania.
The Westinghouse Machine Company commenced production of its first model, the Standard Automatic Engine, in July 1881. The Standard Automatic was a steam engine that could be custom-ordered in 13 sizes, varying from 5 to 250 Horse Power (H. P.) The smaller Junior Engine (7 sizes, 5 to 75 H. P.) was introduced in 1886, followed by the Compound Automatic steam engine (9 sizes, 35 to 300 H. P.) in 1888. The Westinghouse Machine Company also manufactured gas engines, steam turbines, and pumps.
The company's engines were used to power a wide variety of industrial and mechanical applications, including pumping, cutting, blowing, and lighting. Manufacturing companies, railroads, electrical power companies, and sawmills were among the many firms that used Westinghouse engines in their daily operations. The Westinghouse Machine Company shipped its engines and pumps to companies throughout the United States, Europe, the Far East, Central America, and South America.

Scope and Content Note:

The collection consists of thirty-three volumes of manufacturing and repair records for equipment produced by the Westinghouse Machine Company between 1881 and 1921. The volumes, which are labeled "Duplicate Engine Records," were copied from the original records, apparently for the use of the company's Order Department. The records are arranged in five categories: Standard Engine; Junior Engine; Compound Engine; Gas Engine; and Special Engines, Pumps, and Miscellany. Each engine was numbered in the order of its manufacture. The records for each engine include the engine number, a shop order number, the date of manufacture, the size and speed of the engine, the parts numbers for the engine components, testing information, repair and maintenance orders, and the name and location of the company that purchased the engine. Some of the engine records include sketches and drawings of component parts.

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