Abstract: An assisted-exercise apparatus may include a user support, weight, and rocker frame interconnecting said user support and weight. The rocker frame may include a lower and upper section, the lower section having a weight pin and the upper section having a padded user support. One or more weights may be placed on the weight pin, providing downward force on the weight pin and, through the fulcrum of the rocker frame, corresponding upward force on the user support. To use the apparatus, the user may place his or her feet substantially in-line with the fulcrum between the lower section and upper section, places his or her hips on top of the pad, and performs assisted push-ups. The ratio of the lengths and the angle between the upper and lower longitudinal segments may be adjustable to accommodate a certain user height.

Abstract: Smooth interior walls for steel boxcars are provided by an improved fabrication technique. The boxcar side wall is constructed using a horizontal offset seam joined by welding. There are no vertical butt welds in the side assembly, which butt welds and the reinforcements associated with such welds have traditionally caused damage to sensitive cargo like newsprint rolls.

Abstract: Smooth interior walls for steel boxcars are provided by an improved fabrication technique. The boxcar side wall is constructed using a horizontal offset seam joined by welding. There are no vertical butt welds in the side assembly, which butt welds and the reinforcements associated with such welds have traditionally caused damage to sensitive cargo like newsprint rolls.