Abstract: A polyethylene chock box which is secured to the railroad car sidescreen by means of removable blind fasteners, thereby greatly decreasing labor costs and well as future maintenance expenses. The chock boxes have a contoured lower surface with drain holes to permit water to drain from the boxes and to permit water to flow beneath the boxes so the railroad car can drain as well. The resilient polyethylene prevents the chipping and denting of the vehicle doors, while also reducing weight.

Abstract: A sidescreen securement apparatus for auto-rack railroad cars which may be installed by a single person working inside the car, thereby saving time and money, as well as eliminating the danger of falls. The sidescreen-roof securement device comprises a Y-shaped roof engagement member with a lower stem for securement to the sidescreen through one of its perforations with a blind fastener. A first sidescreen-sidescreen securement device takes advantage of the channels formed along the edges of the sidescreens. A channel segment slips into the edge channel of the upper sidescreen and is thereby secured to it. A U-shaped element is welded to the channel segment and a flange extends from the U-shaped member down to the adjacent lower sidescreen and is secured thereto by means of a blind fastener.

Abstract: A chock hanger includes a generally cylindrical hanger body having an aperture therethrough with a tubular bushing mounted in the aperture. A cylindrical connector body has a flange extending annularly and outwardly from the forward end thereof which serves as a stop when the connector body is journaled through an aperture in a thin flat wall. A washer is interposed between the forward end of the connector body and the rearward end of the hanger body, and a screw is journaled through the hanger body, washer, and connector body and thence threaded in a nut mounted in the rearward end of the connector body. The screw cap has a diameter such that the cap abuts the bushing so that threading the screw into the nut compresses the connector body along the longitudinal axis thereof. The connector body is formed of a resilient flexible material which will deform when placed in longitudinal compression, thereby forming a bulge adjacent the exterior surface of the wall.