Machine for bonding lining to a brake shoe

Claim 1

A MACHINE FOR BONDING LINING TO A BRAKE SHOE COMPRISING A HORIZONTALLY DISPOSED ANVIL OF HEMI-CYLINDRICAL SHAPE MOVABLE IN LINE WITH ITS MEDIAN REDIUS AND PROVIDED WITH A CENTRALLY DISPOSED LONGITUDINAL BRAKE-SHOEWEB-RECEIVING SLOT IN ITS CURVED PORTION, A SHOE-POSITIONING MEMBER CARRIED IN EACH END OF SAID SLOT, AN ARCUATE MEMBER MOVABLE WITH SAID CURVED PORTION HAVING A SLIGHT DEPRESSION ALONG ITS EDGE ADJACENT SAID CURVED PORTION FOR RECEIVING ONE EDGE OF A BRAKE SHOE RIM, SAI ARCUATE MEMBER LYING IN A PLANE BELOW AND PARALLEL TO THE PLANE OF SAID SLOT TO VERTICALLY POSITION BOTH THE BRAKE SHOE AND THE LINING SEGMENT, AN ELECTRICAL HEATING ELEMENT CARRIED INSIDE SAID ANVIL FOR UNIFORMLY HEATING SAME, A MOUNTING PLATE SECURED ON ONE OF ITS SIDES TO FLAT DIAMETRICAL PORTION OF SAID ANVIL AND HAVING A CENTRALLY PROJECTING FLARED TENON ON ITS OTHER SIDE, A PRESSURE TRANSMITTING BLOCK MORTISED TO RECEIVE SAID TENON ND ADAPTED TO RECIPROCATE IN LINE WITH THE MEDIAN REDIUS OF SAID ANVIL, A POWER CYLINDER CONNECTED TO SAID PRESSURE TRANSMITTING BLOCK TO SELECTIVELY RECIPROCATE SAID BLOCK AND ANVIL, A FLEXIBLE STEEL STRAP MOUNTED AT EACH OF ITS ENDS FOR ONLY PIVOTAL MOVEMENT ABOUT A COMMON AXIS LYING IN THE PLANE OF SAID ANVIL SLOT AND IN A PLANE PARALLEL TO SAID FLAT PORTION OF SAID ANVIL, SAID STRAP BEING ADAPTED TO FIT THE CONTOUR OF THE CURVED PORTION OF SAID ANVIL AND FURTHER ADAPTED TO TAKE THE COMPRESSIVE LOAD OF SAID POWER CYLINDER DURING A BONDING CYCLE, THE ENDS OF SAID STRAP BEING ADJUSTABLE TOWARD OR AWAY FROM EACH OTHER, AN OPERATIVE CONNECTION BETWEEN SAID ANVIL AND SAID STRAP CAUSING SAID STRAP TO MOVE OUT OF BONDING POSITION UPON RETRACTILE MOVEMENT OF SAID ANVIL, A BRAKE LINING LOCATOR ADAPTED TO CIRCUMFERENTIALLY POSITION A SEGMENT OF LINING COMPRISING A PLATE OF SUBSTANTIALLY THE SAME SHAPE AS SAID ANVIL PIVOTLLY MOUNTED TO SYMMETRICALLY OVERLIE THE TOP SIDE OFF SAID ANVIL, A PAIR OF RADIALLY AND CIRCUMFERENTIALLY ADJUSTABLE LINING-LOCATOR-FINGERS CARRIED BY SAID LOCATOR PLATE, EACH FINGER BEING ADAPTED TO ENGAGE A CORRESPONDING END OF A LINING SEGMENT AND ONE OF SAID FINGERS BEING BIASED TO YIELD IN A CIRCUMFERENTIAL DIRECTION AWAY FROM THE END OF A LINING SEGMENT TO COMPENSATE FOR MANUFACTURING VARIATIONS IN LINING SEGMENT LENGTH, MENS FOR SHIFTING SAID LOCATOR INTO AND OUT OF ITS LINING LOCATING POSITION, A SHOE EJECTOR FOR UNLOADING A SHOE AFTER THE COMPLETION OF A BONDING CYCLE COMPRISING AN EJECTOR ROD WHICH LIES IN A PLANE INCLUDING SAID ANVIL SLOT AND WHICH PENETRATES SAID ANVIL TO REGISTER WITH THE INNER PERIPHERY OF SAID ANVIL SLOT, AND IMPACT DELIVERING CYLINDER CONNECTED TO SAID EJECTOR ROD TO SELECTIVELY CAUSE SUBSTANTIALLY INSTANTANEOUS AXIAL MOVEMENT THEREOF, AND MEANS FOR AUTOMATICALLY CONTROLLING THE BONDING TIME.