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Like all Janney couplers, the Tightlock is "semi-automatic". The couplers automatically lock when cars are pushed together, but workers must go between cars to hook up the air lines for the pneumatic brakes and connect cables for head-end power and other communications. To separate cars, a worker must use a lever to move the locking pin that ...
It automatically locks the couplers on cars or locomotives together without a rail worker having to get between the cars, and replaced the link and pin coupler, which was a major cause of railroad worker injuries and deaths. The locking pin that ensures Janney couplers remain fastened together is withdrawn manually by a worker using the "cut ...
Toward that end, in 1968 General Motors and the Southern Pacific Railroad jointly began work on development of a radical new rail car designed to carry the Chevrolet Vega, a new compact car being developed by GM. Known as Vert-A-Pac, the rail cars would hold 30 Vegas in a vertical, nose-down position, versus 18 in normal tri-level autoracks ...
The link-and-pin coupler consisted of a tube-like body that received an oblong link. During coupling, a rail worker had to stand between the cars as they came together and guide the link into the coupler pocket. Once the cars were joined, the employee inserted a pin into a hole a few inches from the end of the tube to hold the link in place.
Shibata semi-automatic couplers on EMUs made by Toshiba-Marubeni Corp. 1956 D.F. Sarmiento Railway on 1,676 mm track gauge, 1962 General Bartolomé Mitre Railway on 1,676 mm Track gauge, except for Tren de la Costa, 1973 General Urquiza Railway on 1,435 mm track gauge, 1983 General Roca Railway on 1,676 mm Track gauge EMUs.
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Pressing a button on the key unlocks all of the car doors. Another button locks the car. In 1980, Ford Motor Company introduced an external keypad-type keyless entry system, wherein the driver entered a numeric combination —either pre-programmed at the factory or one programmed by the owner— to unlock the car without the key.
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