Baldwin Locomotive Works (BLW) was an American manufacturer of railway locomotives from 1825 to 1951. Originally located in Philadelphia, Pennsylvania, it moved to nearby Eddystone in the early 20th century. The company was for decades the world's largest producer of steam locomotives, but struggled to compete when demand switched to diesel locomotives. Baldwin produced the last of its 70,000-plus locomotives in 1951, before merging with the Lima-Hamilton Corporation on September 11, 1951, to form the Baldwin-Lima-Hamilton Corporation.

The company has no relation to the E.M. Baldwin and Sons of New South Wales, Australia, a builder of small diesel locomotives for sugar cane railroads.

Baldwin Locomotive Works

History: 19th century

Beginning

Matthias W. Baldwin, the founder, was a jeweler and whitesmith, who, in 1825, formed a partnership with machinist David H. Mason, and engaged in the manufacture of bookbinders' tools and cylinders for calico printing. Baldwin then designed and constructed for his own use a small stationary engine, the workmanship of which was so excellent and its efficiency so great that he was solicited to build others like it, and thus turned his attention to steam engineering. The original engine was in use and powered many departments of the works for well over 60 years, and is currently on display at the Smithsonian Institution in Washington D.C.

Baldwin Locomotive Works

In 1831. Baldwin built a miniature locomotive for exhibition at the request of the Philadelphia Museum, which was such a success that he received that year an order from a railway company for a locomotive to run on a short line to the suburbs of Philadelphia. The Camden & Amboy Railroad (C&A) had shortly before imported a locomotive (John Bull) from England, which was stored in Bordentown, New Jersey. It had not yet been assembled by Isaac Dripps under the direction of C&A president Robert Stevens when Baldwin visited the spot. He inspected the detached parts and made notes of the principal dimensions. Aided by these figures, he commenced his task.

Baldwin Locomotive Works

The difficulties attending the execution of this first order were such that they are not easily understood by present-day mechanics. Modern machine tools simply did not exist; the cylinders were bored by a chisel fixed in a block of wood and turned by hand; the workmen had to be taught how to do nearly all the work; and Baldwin himself did a great deal of it with his own hands.

It was under such circumstances that his first locomotive, christened Old Ironsides, was completed and tried on the Philadelphia, Germantown and Norristown Railroad on November 23, 1832. It was at once put in active service, and did duty for over 20 years. It was a four-wheeled engine, weighing a little over five tons; the driving wheels were in diameter, and the cylinders were of bore by stroke. The wheels were of heavy cast iron hubs, with wooden spokes and rims, and wrought iron tires, and the frame was made of wood placed outside the wheels. It had a diameter boiler which took 20 minutes to raise steam. Top speed was .

Early years

Baldwin struggled to survive the Panic of 1837. Production fell from 40 locomotives in 1837 to just nine in 1840 and the company was heavily in debt. As part of the survival strategy, Matthias Baldwin took on two partners, George Vail and George Hufty. Although the partnerships proved relatively short-lived, they helped Baldwin pull through the economic hard times.

Zerah Colburn was one of many engineers who had a close association with Baldwin Locomotive Works. Between 1854 (and the start of his weekly paper, the Railroad Advocate) and 1861, when Colburn went to work more or less permanently in London, England, the journalist was in frequent touch with M. W. Baldwin, as recorded in Zerah Colburn: The Spirit of Darkness. Colburn was full of praise for the quality of Baldwin's work.

In the 1850s, railroad building became a national obsession, with many new carriers starting up, particularly in the Midwest and South. While this helped drive up demand for Baldwin products, it also increased competition as more companies entered the locomotive production field.

Still, Baldwin had trouble keeping pace with orders and in the early 1850s began paying workers piece-rate pay. By 1857, the company turned out 66 locomotives and employed 600 men. But another economic downturn, this time the Panic of 1857, cut into business again. Output fell by 50 percent in 1858.