Apparatus for folding edges of flexible covering material about a board or panel

Claim 1

A MACHINE FOR FOLDING THE MARGIN AREA OF A FLEXIBLE COVERING MATERIAL OVER THE EDGE AND OVER THE UPPER SURFACE ADJACENT TO THE EDGE OF A BOARD, SAID MACHINE COMPRISING: A FRAME; A BED STRUCTURE CARRIED BY THE FRAME; A BASE FOR RECEIVING THE BOARD TO BE COVERED, SAID BASE BEING MOVABLE UP AND DOWN WITH REFERENCE TO THE BED STRUCTURE; RESILIENT MEANS BETWEEN THE FRAME AND BASE FOR URGING THE BASE UPWARDLY; A PRESSURE FOOT ASSEMBLY POSITIONED ABOVE THE BASE AND MOVABLE UP AND DOWN FOR ENGAGING THE BOARD AND LOWERING THE BOARD AND THE BASE WITH REFERENCE TO THE BED STRUCTURE; SAID BED STRUCTURE HAVING AN UPPER FACE SERVING AS A PLATFORM WITH AN OPENING THEREIN DEFINING A MARGIN AREA WHICH CIRCUMSCRIBES THE SURFACE AREA DEFINED BY THE BOARD; RESILIENT HOLDING MEANS CARRIED ON THE PRESSURE FOOT ASSEMBLY AND OVERLYING THE MARGIN AREA OF THE UPPER FACE OF THE BED STRUCTURE AND ENGAGING THE MARGIN AREA OF THE COVERING MATERIAL AND HOLDING SAME TEMPORARILY AGAINST THE UPPER FACE OF THE BED STRUCTURE, WHILE THE PRESSURE FOOT ASSEMBLY MOVES DOWNWARDLY BELOW THE LEVEL OF THE UPPER FACE OF THE BED STRUCTURE TO FOLD THE MARGIN AREA OF THE COVERING MATERIAL OVER THE EDGE OF THE BOARD; PUSHER SHOES ASSOCIATED WITH THE BED STRUCTURE FOR IN AND OUT MOVEMENT RELATIVE THERETO IN A SUBSTANTIALLY HORIZONTAL PLANE BENEATH THE LEVEL OF THE UPPER FACE OF THE BED STRUCTURE AND ENGAGING THE MARGIN AREA OF THE COVERING MATERIAL AND FOLDING SOME INWARDLY AGAINST THE UPPER SURFACE OF THE BOARD ADJACENT ITS EDGE, SAID HOLDING MEANS CONTINUING TO HOLD THE MARGIN AREA OF THE COVERING MATERIAL TEMPORARILY AGAINST THE UPPER FACE OF THE BED STRUCTURE WHILE A PORTION OF THE MARGIN AREA OF THE COVERING MATERIAL IS FOLDED AGAINST THE UPPER SURFACE OF THE BOARD BY THE PUSHER SHOES.