The Ramsey transfer existed in a number of variations covered by several different patents. It was typically used to transfer cars between 6 ft (1,829 mm) broad gauge, 4 ft 8+1⁄2 in (1,435 mm) standard gauge and narrow gauge (usually 3 ft / 914 mm in width) track.
Invention
It was invented and patented in 1876 by Robert Henry Ramsey as a simple and rapid device for removing trucks at repairing shops, and for transferring car-bodies between rail roads of different gauges.[1]
Operation
Two parallel tracks of 18 in (457 mm) were set approximately 9 feet (2.74 m) apart. Between these two tracks, the standard and narrow gauge tracks descended into a pit, one from each end of the pit, overlapping in the center and having a common center line. Beams resting on trucks riding on the 18-inch (457 mm) gauge tracks were inserted under the car to have its trucks changed. The car was then pushed over pit, resting on the beams. This allowed the old trucks to slip off the center pins. The old trucks were pulled out of the pit and new trucks were pushed in from the opposite side. As the car passed over the opposite side of the pit, the new trucks were guided to fit on the center pins. The car now continued on its way, its load undisturbed.
Speed
It was claimed that the entire procedure could be performed in less than eight minutes. However in 1851, this would have referred to cars without air brakes. More time would have been taken to deal with post 1880 cars with air brakes.[citation needed]
The Ramsey devices along the Oregon Short Line were retired as narrow gauge routes were replaced with standard gauge, with the last narrow gauge transfers in Salt Lake City occurring in 1900 before the narrow gauge Utah & Nevada route was bypassed in 1900 to form the standard gauge line on what is now the Lynndyl Subdivision.[6] On one occasion in 1900 prior to retirement, the Ramsey Transfer in Salt Lake City was used to lend narrow gauge Utah & Northern passenger cars to the Rio Grande Western, which ran an excursion to Park City, Utah over standard gauge rails on their Parley's Canyon route using narrow gauge rolling stock.[7]
Ramsey car-transfer apparatuses were considered for use in Australia, which due to the lack of patent recognition between the United States of America and Colonial Australia at the time, resulted in members of the Parliament of South Australia discussing using an unlicensed copy of the Ramsey design on the nation's railways.[8]