Sheet stopping mechanism

Claim 1

IN A SHEET BRAKING MECHANISM FOR A SHEET STOP STATION OF A HIGH VELOCITY SHEET TRANSPORTING APPARATUS, A STATIONARY BRAKE PLATE, A RETRACTABLE BRAKE PLATE IN OPPOSED BROADSIDE RELATIONSHIP TO SAID STATIONARY BRAKE PLATE, SAID BRAKE PLATES HAVING CORRESPONDING FORWARD EDGES DEFINING AN ENTRANCE TO RECEIVE A SHEET EDGEWISE AND HAVING OPPOSITE CORRESPONDING REAR EDGES FORMING A SHEET EXIT, A RETRACTABLE STOP MEMBER CLOSING SAID EXIT, A MOVABLE FULCRUM MEMBER OVERLYING SAID MOVABLE PLATE AND MOVABLE TOWARD AND AWAY FROM SAID STATIONARY PLATE, SAID MOVABLE PLATE FULCRUMED ON SAID MOVABLE FULCRUM MEMBER BETWEEN AND CLOSER TO THE SHEET EXIT THAN TO THE SHEET ENTRANCE, YIELDABLE THRUST MEANS ACTING ON SAID FULCRUM MEMBER AND NORMALLY HOLDING SAID MOVABLE PLATE AGAINST SAID STATIONARY PLATE, SAID MOVABLE PLATE HAVING A CURVED PORTION ALONG THE REAR EDGE THEREOF WITH THE CONCAVE SURFACE TOWARD SAID STATIONARY PLATE AND THE REAR EDGE OFFSET FROM THE PLANE OF SAID MOVABLE PLATE TO SPACE THE LATTER FROM SAID STATIONARY PLATE BETWEEN SAID FLUCRUM MEMBER AND THE REAR EDGE OF SAID STATIONARY PLATE.