Combinação em uma máquina de distribuição de arruelas

摘要

The combination comprises a base and a shuttle mounted movably to the base for displacing a lowermost washer from the stack and for moving the lowermost washer lengthwise to a separated position. A screw gun drives a fastener rotatably and downwardly through the displaced washer in the separated position. A rod is adjustable between an inoperative position relative to the displaced washer and an operative position relative to it and engageable with the displaced washer when adjusted to the operative position for preventing the displaced washer from rotating when a fastener is being driven through the displaced washer.