Mount Washington Cog Railway

The Mount Washington Cog Railway, otherwise called the Cog, is the world's first mountain-climbing gear-tooth railroad rack-and-pinion rail route. The railroad is still in activity, climbing Mount Washington in New Hampshire, USA. It utilizes a Marsh rack framework and maybe a couple steam trains and six biodiesel controlled trains to convey voyagers to the highest point of the mountain.

Its track is worked to 4 ft 8 in 1,422 mm measure, which is actually a tight check, as it is a 1⁄2- inch under 4 ft 8 1⁄2 in standard measure. The prepare rises the mountain at 2.8 miles for each hour 4.5 km/h and plunges at 4.6 mph 7.4 km/h. It takes roughly 65 minutes to rise and 40 minutes to slip, in spite of the fact that the diesel motor can go up in as meager as 37 minutes. The cog railroad plans and assembles the greater part of its trains and traveler mentors at the organization shops situated at the base of Mount Washington.

Each prepare comprises of a train driving a solitary traveler auto up the mountain, plummeting the mountain by going backward. Both train and auto were initially outfitted with a ratchet and pawl mechanism drew in amid the climb that keeps any move back; amid plunge, both train and auto are braked. Ongoing enhancements in configuration have supplanted the ratchet apparatus and pawl instrument with sprag clutches and disc brake assemblies. The vast majority of the trains were made by the Manchester Locomotive Works.