Abstract: A cylinder liner for an engine includes a hollow cylindrical sleeve, with an inner surface and an outer surface, that extends from a first end to a second end along a longitudinal axis. The cylinder liner may also include an annular cuff-ring groove, with a radiused fillet region, on the inner surface proximate the first end. The cylinder liner may further include a hardened case formed on the inner surface of the sleeve. The case may extend under a base of the fillet region of the cuff-ring groove.

Abstract: A wedge-shaped bolt, slidable along an edge of an oven door opening engages a roller keeper on an oven door to force the door to tightly closed position and hold a door seal under compression. The roller keeper is resiliently mounted on the oven door seal.

Abstract: A firebox is provided having an end panel, opposite side panels and top and bottom panels, one end of the firebox being open. The firebox includes depending support legs and an outer housing including opposite side and end walls and a top wall is telescoped downwardly over the firebox with the front wall thereof sealingly secured across the open end of the firebox and the other end wall, the top wall and opposite side walls spaced outwardly from the end panel, top panel and opposite side walls, respectively, of the firebox. The lower marginal edges of the opposite side and end walls of the housing are generally horizontally registered with the lower ends of the legs and the firebox includes a grate spaced above the bottom panel. A fuel door opening is provided in the front wall above the grate and a draft door opening is provided in the front wall below the grate and above the bottom panel.