The Birney Safety Car
was a joint effort between Charles O. Birney and Joseph M. Bosenbury.
Both men began working on the idea of a new, single-truck electrically
powered streetcar after 1910 and first applied for a patent of the
design by 1915. However, it was not until between 1917 and 1919 that
they actually began receiving their requested patents for the car. Overall, it is difficult to say which man (if either) offered more contribution to the car although Birney is often historically credited with a greater share. This was predominantly due to the fact that he was an engineer
for the firm Stone & Webster (which is still in business today), a
company that even at the time held numerous designs patents related to
the railroad industry.
Just before 1920 production of the Birneys began and could not come at a more important time as the automobile was giving interurbans and street railways serious competition. As with the later PCC design, most buyers of Birneys
turned out to be street lines although some interurbans did purchase it
as well. The design was simple, inexpensive to operate, and small,
suiting the needs of both street railways and interurbans with street
service. It once again featured the single-truck car
design (the single truck dated back to the 19th century but the Birney
offered a much more stable design) and was about 28-feet in length
capable of holding just over 30 passengers. The car featured dual motors giving it quick acceleration and because of its small size could be operated by a single motorman.
Another reason for the success of the Birney Safety Car was due to its builder. While the American Car Company technically built Birneys it was owned by the J.G. Brill Company the largest interurban and streetcar builder in the country (Brill was not the only builder of Birneys although it did produce the vast majority of them). Through its publicity word about the new design got out the public giving it the much needed exposure for sales to take off. For instance, one of its major advertising pieces clearly demonstrated the usefulness of the car with a short description of all of the benefits that it provided such as, "Birney Safety Car service produces a good-will that puts a railway company in the best position to obtain a higher rate of return".
One of the most notable interurbans to purchase a large
quantity of Birneys included the Terre Haute, Indianapolis & Eastern
Traction Company which equipped its entire street trackage in Terre
Haute, Indiana with the cars. In 1916 alone some 187 were built and by
1920 construction peaked at 1,699. During that four year span there were
nearly 4,200 Birneys built. Unfortunately, the car's
successful traits led to its downfall. Featuring only one-truck the
Birney was prone to sliding off the tracks and its lightweight resulted
in a rough ride, which only worsened as track conditions deteriorated (a
result of many lines simply being unable to afford maintenance
improvements). Additionally, it was not very suitable to winter weather
conditions and could get stuck in any type of moderate snow. By 1930
production of the car had ended altogether across the industry. By this
time, more than 6,000 examples of the single-truck Birney had been
Use of the Birneys declined through the 1930s and 1940s as equipment
both became worn out and newer models were available (the car
began to be retired in much larger numbers after the Presidents'
Conference Committee Streetcars or PCCs entered service in 1936).
However, there were so many Birneys built that naturally, several remain
preserved today. And, thanks to the simplicity of the design and ease
of maintenance a number of the cars have been returned to operational
use around the country. Today, you can find the car
in operation at the Western Railway Museum, Fort Smith Trolley Museum,
McKinney Avenue Transit Authority (Dallas), and the Tampa & Ybor
City Street Railway Society among others. You can also find the car in
operation at the Nelson Electric Tramway in Canada as well as in
Australia and New Zealand.
For more information about Birneys please click here.
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