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A pair of gladhand connectors between railroad cars A gladhand connector on a trailer. A gladhand connector or gladhand coupler is an interlocking hose coupling fitted to hoses supplying pressurized air from a tractor unit to air brakes on a semi-trailer, [1] or from a locomotive to railway air brakes on railroad cars. [2]
Pneumatic tool attached using a coupling. A coupled pair consists of a male nipple or plug and a female coupler or socket. One side is connected to a flexible supply hose; the other may be attached to a manifold, valve, tool, or another hose. A female coupler is used on the supply side, and a male nipple is used on the receiving side.
"By this means the major portion of the load on the lorry can be transferred to the rear part of the tractor, and this increases the load on the rear wheels (the drivers) of the latter, and consequently the adhesion." They make the point that "The tractor system, of course, means in effect an articulated six-wheel vehicle".
The market for quick couplers is mainly supplied by a large number of small and medium-sized enterprises. Many of the manufacturers of quick couplers are small, flexible and innovative, leading to the wide variation in design concepts. Many Original Equipment Manufacturers (OEMs) of construction equipment market a range of quick couplers.
They are used underwater, in drilling operations, in outer space, and for pneumatic-power, plumbing, heating, electrical, and fire-suppression applications. Quick connect fittings are intended to be applied more easily than traditional fittings, requiring only that the pipes be pushed together firmly to lock the teeth of the fitting firmly.
Animated Oldham coupler. An Oldham coupling has three discs, one coupled to the input, one coupled to the output, and a middle disc that is joined to the first two by tongue and groove. The tongue and groove on one side is perpendicular to the tongue and groove on the other.
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 ...
A camlock, also called cam and groove, is a quick connect fluid transfer hose coupling that consists of a male "adapter" and female "coupler". The adapter has a groove on the outside that is engaged by the "cam arms" on the outside of the coupler to effect a seal against the gasket inside the "coupler". They are commonly used for petroleum or ...