Alignment control coupled locomotive movements on NS

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urrengr2003
Posts: 150
Joined: Wed Sep 15, 2004 6:24 pm

Alignment control coupled locomotive movements on NS

Post by urrengr2003 » Fri Feb 09, 2007 10:07 pm

An Alignment Coupler has four ears cast on the back of the coupler shank; two at the top & two at the bottom. Inside of the draft gear are two U shape castings; one above & at the bottom. These are designed to strike the ears on the rear of the coupler shank when the draft gear goes into compression or buff (Slack In). Once the ears on the coupler shank strike the U shaped casting the coupler can not slew preventing the coupler from taking a pivoted set and thereby eliminating dangeerous lateral forces between the units when Dynamic Braking is in use.

In the absence of alignment control draft gear, sufficient forces can be generated between the units when in buff (Dynamic Brake) to be distructive; including derailing, spreading the rails, and in extreme cases oveerturning rail account the horizonetal forces beeing great enough to be distructive. The alignment control draft gear keeps these forces in a straight line between the units preventing the damage described above.

John_Perkowski
Posts: 4928
Joined: Wed Mar 17, 2004 5:12 pm
Location: Off the Q main near Parkville MO

Re: Alignment control coupled locomotive movements on NS

Post by John_Perkowski » Mon Nov 22, 2010 10:35 am

General Discussion: Locomotives, Rolling Stock, and Equipment Forum Moderator's Note:

I think this question might have more success on the NS board. So, I've split this from the general topic of alignment control couplers, and am moving it to the NS forum.

A shadow will remain at the General Discussion: Locomotives, Rolling Stock, and Equipment Forum.
~John Perkowski: Moderator: General Discussion: Locomotives, Rolling Stock, and Equipment
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