Abstract: A powered stapler (10) and method of operating same for stapling together two or more metal workpieces. The powered stapler (10) includes a main frame member (20) adapted to carry a strip of staples. The frame member has an anvil (20e) covered by a front nosepiece (48) at one end. A lower jaw member (22), having a lower cam slot (34), is pivotally attached to the main frame member. The lower jaw member (22) has a forming die (56). An upper ram member (24) has an upper cam slot (32) and a staple-driving hammer (52). The upper ram member (24) is pivotally attached to the lower jaw member (22). A drive rod (28) extends from a power unit (12) and has a cam bar (30) at one end protruding through the upper cam slot (32) in the upper ram member (24) and through the lower cam slot (34).

Abstract: The nail driving tool magazine (10) includes a substantially elongate main body (12) adapted to be selectively attached to a nail driving tool (T). The main body includes at least two nail feed rails (14, 16) open at one end for loading the nails (N). The opposite end is connected to a feed chute (22) directing nails to a nailing chamber (21). Guide tracks (35, 36, 45, 46) are disposed adjacent each feed rail. A spring-loaded feed carriage (30, 40) rides in each guide track to advance the nails. A freely pivoting rail selector (24) is disposed in the feed chute to automatically switch to a full rail when the other rail is spent to selectively direct the nails to the nail driving chamber. In this position, the rail selector blocks the spent rail so that it may be reloaded.

Abstract: A powered stapler (10) and method of operating same for stapling together two or more metal workpieces. The powered stapler (10) includes a main frame member (20) adapted to carry a strip of staples. The frame member has an anvil (20e) covered by a front nosepiece (48) at one end. A lower jaw member (22), having a lower cam slot (34), is pivotally attached to the main frame member. The lower jaw member (22) has a forming die (56). An upper ram member (24) has an upper cam slot (32) and a staple-driving hammer (52). The upper ram member (24) is pivotally attached to the lower jaw member (22). A drive rod (28) extends from a power unit (12) and has a cam bar (30) at one end protruding through the upper cam slot (32) in the upper ram member (24) and through the lower cam slot (34).