Bill Welch wrote:

I don't think this is the part I am referring to Dick. The fitting I

am speaking of had no ability to keep the door tight against the side.
The function of the strap I am talking about was to keep the door from
jamming against the bracing immediately adjacent to the door opening.
The CB&Q seemed to prefer to attach them to the steel braces while
Wabash secured them through the sheathing.

How about "door skids?" That's what they do -- skid the doors
over the external bracing. Every well developed technology has
a purpose for everything and a name for anything, but I'd wager
that each user had a different name for these specialized skids.

Mal Houck