Roofing gun attachment for dispensing tin tags

Apparatus for positioning a generally planar tin tag relative to a roofer's nailing gun having a discharge end with a given nail driving axis for driving a nail through the tin tag and into a fixed workpiece, comprising:

• (a) a horizontal support member (2) adapted to be seated on the workpiece, said support member containing an opening (10) defining a nailing station (70), said support member including means defining a loading station (22);
• (b) means for successively supplying tin tags (12) to said loading station, including a vertically arranged tubular supply receptacle (32) having a cross-sectional configuration corresponding generally with that of the tin tags, said receptacle having a lower end connected with said support member adjacent said loading station, and an open upper end for receiving a stack of the tin tags;
• (c) means including a shuttle member (6) slidably connected with said support member for transporting a tin tag from said loading station to said nailing station;
• (d) a tubular slide member (40) mounted concentrically about said supply receptacle for movement between upper retracted and lower nailing positions relative to said support member;
• (e) spring means (48) biasing said slide member toward said upper retracted position relative to said support member;
• (f) means (72) for connecting said slide member with the nailing gun to cause the gun nailing axis to extend through said nailing station opening;
• and
• (g) connecting means for connecting said slide, shuttle and support members for displacing said shuttle member between said nailing and loading stations when said slide member is displaced between said upper retracted and lower nailing positions, respectively, whereby when the user displaces said slide member and said nailing gun toward the support member against the biasing force of said spring, the slide member is displaced from the nailing station toward the loading station.