Edge scraping apparatus

Claim 1

APPARATUS FOR SCRAPING AN EDGE PORTION ON A STRIP OF MATERIAL MOVING ALONG A CONTINUOUS PROCESSING LINE, SAID APPARATUS COMPRISING: A MEMBER; EDGE ENGAGING MEANS; MEANS MOUNTING SAID EDGE ENGAGING MEANS ON SAID MEMBER; MEANS MOUNTING SAID MEMBER FOR MOVEMENT WITH SAID EDGE ENGAGING MEANS, BETWEEN A FIRST LOCATION IN WHICH THE ENGAGING MEANS IS POSITIONED FOR CONTACT WITH AN EDGE OF SAID STRIP AND A SECOND LOCATION IN WHICH THE ENGAGING MEANS IS IN A NON-CONTACTING POSITION; EDGE SCRAPING MEANS; MEANS MOUNTING SAID SCRAPING MEANS ON SAID MEMBER FOR MOVEMENT, INDEPENDENT OF THE MEMBER AND THE ENGAGING MEANS, IN A FIRST DIRECTION TOWARDS THE PATH OF THE MOVING STRIP IN RESPONSE TO ADVANCEMENT OF SAID STRIP AND IN A SECOND DIRECTION, OPPOSITE SAID FIRST DIRECTION, IN RESPONSE TO A BACK-UP OF THE STRIP; FIRST MEANS FOR LIMITING MOVEMENT OF SAID SCRAPING MEANS IN SAID SECOND DIRECTION TO A WITHDRAWN, NONSCRAPING LOCATION IN WHICH THE SCRAPING MEANS IS POSITIONABLE TO ENGAGE AN UNSCRAPED PORTION OF THE ADVANCING STRIP WHEN SAID MEMBER IS IN ITS FIRST LOCATION BUT IS INCAPABLE OF ENGAGING A SCRAPED PORTION OF A BACKING-UP STRIP;