Patent ID: 8487172

Claim:
A piano action flange comprising: a hinge end and an open-slotted rail attachment feature, wherein, said piano action flange is a rigid flat oblong-shaped article, said hinge end has one or two hinge pin attachment holes capable of mating with the corresponding hinge pin attachment holes of a hammer butt, a whippen, or a damper of a grand piano action or the corresponding hinge pin attachment holes of a hammer butt, a whippen, or a damper of an upright piano, and said open-ended rail attachment feature is a slot-shaped void completely through said piano action flange, running in the longitudinal direction of said piano action flange, with width slightly larger than the outer diameter of the thread end the flange screw but smaller that the head diameter of the flange screw, where the slot-shaped void is open on one end, breaking through the end of said piano action flange, to leave the slot-shaped void open and accessible from the end of said piano action flange.