Vertical buckstay/leveler attachment to a horizontal buckstay

摘要

It has now been found that these and other objects of the invention may be attained in a vapor generation apparatus which includes a tube wall and an elongated first horizontal buckstay disposed at a first elevation. The apparatus also includes coupling means coupling the first horizontal buckstay to the tube wall, an elongated second horizontal buckstay disposed at an elevation that is higher than the first elevation. The apparatus also includes means for coupling the second horizontal buckstay to the tube wall. A first elongated vertical buckstay member has first and second ends and also includes for securing one end of the first elongated vertical buckstay members to one of the horizontal buckstay members. Second means for coupling the other end of the first elongated vertical buckstay member to the other horizontal buckstay, the means for coupling including a sleeve dimensioned and configured for receiving means extending from the other end of the first vertical buckstay member with sliding planar face to planar face engagement therebetween, the means for coupling allowing relative motion between the first vertical buckstay member the other horizontal buckstay member.