Adjustable copy holder mounting base and supporting arm assembly

An adjustable copy holder mounting base and supporting arm assembly comprising:

• a mounting base adapted for fastening to a shell of a computer monitor, said mounting base comprises two upright parallel lugs extending from a top thereof, each of said parallel lugs comprising a recess, and a through hole extending through a center of said recess;
• a supporting arm having a first end terminating in a flat coupling block inserted in between the lugs of said mounting base and secured thereto by a male button and a female button, and a second end adapted for coupling to a face plate holder, the flat coupling block of said supporting arm comprising a through hole at a center connected between the through holes of the parallel lugs of said mounting base, a smoothly arched flange extending from one side around the through hole of said flat coupling block and defining a mouth, two pairs of parallel transverse flanges bilaterally extending outwardly from two opposite ends of said smoothly arched flange and defining a receiving chamber, a toothed locating member mounted in said receiving chamber and meshed with said female button, said female button comprising an externally toothed socket inserted into the one recess through hole of said mounting base and meshed with said toothed locating member to hold said supporting arm in position, said male button comprising a stud inserted through the other recess through hole and fitted into the externally toothed socket of said female button;
• and
• a face plate holder secured to the second end of said supporting arm for holding copies, said face plate holder comprising a face plate mount adapted for holding a face plate for holding copies and having a coupling block at a back side, a first fastening device and a second fastening device fastened together and fixed to the second end of said supporting arm to hold said face plate mount, the coupling block of said face plate mount comprising a center through hole, an axial split in communication with the center through hole of the coupling block of said face plate mount, two annular open chambers around two opposite ends of the center through hole of the coupling block of said face plate mount, and a plurality of teeth within the center through hole of the coupling block of said face plate mount adjacent to said axial split, said first fastening device having one end fixed to the second end of said supporting arm, and an externally toothed socket perpendicularly disposed at an opposite end inserted into the center through hole of the coupling block of said face plate mount and forced into engagement with the teeth of the coupling block thereof, said second fastening device having one end fixed to the second end of said supporting arm, and a stud perpendicularly disposed at an opposite end and inserted into the center through hole of the coupling block of said face plate mount and fitted into the externally toothed socket of said first fastening device.