Today, my old shop at North Walpole (Green Mt. RR) messaged me about helping to figure out the locking center pin on one of the passenger fleet. The car is a former NYC )opera) baggage car with the swinging end door. The center pin access is from inside the car but the crew was having a time getting things loose and figured out. I had not encountered this style before and am wondering if anyone has a mechanical drawing. It is a variation of the three-piece desing in older cars that hs two outer locking halves with the center straight plate dropped down between them to keep them in place. The NYC car uses a foour-piece where the center plate is a triad and there are three locking castings instead of two. Works exactly the same but just has that different arrangement. A drawing of the four piece would be ideal, as we already have a great drawing of the normal three-piece. Image of the center plate remove is shown here.
I think your best bet is to contact NYCSHS and see if one of their collections has the pin drawings. They might extend you a discount since you're a legitimate operator.
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