Ascension pipe cleaning apparatus

摘要

Apparatus is described for cleaning the interior of gooseneck elbows of coke oven ascension pipes. A powered cleaning mechanism carried by the coke oven larry car is mounted on a platform that is reciprocably movable between the larry car and the elbow to be cleaned over a track and roller system protected against the disruptive effects of accumulated coal or other debris. A cam and follower arrangement is operative to automatically guide the operating end of the cleaning mechanism within the interior of the elbow thereby eliminating the need for a workman's manually guiding and manipulating the same.