Side friction roller coaster
A side friction roller coaster is an early roller coaster design invented by Edward Joy Morris. The design introduced side-friction wheels to help prevent trains from derailing during curved portions of the track. In addition to weight-bearing wheels traditionally located on the underside of each train car, friction wheels were added to both sides, which roll perpendicular along the inner edge of the track.
Thompson's Switchback Railway that opened in 1884 at Coney Island.
A brakeman is a rail transport worker whose original job was to assist the braking of a train by applying brakes on individual wagons. The advent of through brakes, brakes on every wagon which could be controlled by the driver, made this role redundant, although the name lives on, for example, in the United States where brakemen carry out a variety of functions both on the track and within trains.
A Santa Fe Railroad brakeman atop a train that has paused at Cajon, California, to cool its brakes after descending Cajon Pass in March 1943.
Brakeman's cab (left) on a Prussian compartment coach
During the early days of railroading, one of the most deadly jobs in America was that of brakeman, who worked from the top of moving trains in all weather