Shay Locomotive, no. 3172, detail.
20th c American Utilitarian Industrial Arts
Los Angeles. California. United States.
The Shay locomotive, named after Ephraim Shay was a workhorse where heavy loads and steep grades were involved. No. 3172 could pull 167 tons of freight up 6% grades. Its advantage over other steam locomotives of the day was a stepped-down gear ratio and a drive shaft connected to several pairs of wheels. Note the drive shaft extending to the tender through a universal joint. This locomotive was last identified by its owners as the Camino-Placerville & Lake Tahoe #2.
Caption: Norris-Lancaster Locomotive Works | Shay Locomotive, no. 3172, detail. | c. 1900-1950 | American | Utilitarian
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