Adjustable anchor for curtain-wall system

A curtain-wall system, comprising:

• a building structure;
• a curtain-wall member;
• a back member coupled to the building structure;
• a first arm coupled to the back member, the first arm comprising:
• a first base member;
• a first intermediate member hingedly coupled to the first base member;
• a first distal member hingedly coupled to the first intermediate member, the first distal member being coupled to the curtain-wall member;
• and
• wherein articulation of the first intermediate member relative to the first base member and articulation of the first distal member relative to the first intermediate member facilitates adjustment of the first arm relative to an as-built location of an edge of the building structure.

A method of installing a curtain-wall anchor, the method comprising:

• securing a back member to a building structure with a first mounting bolt that is received through a first arcuate slotted aperture formed in the back member and with a second mounting bolt that is received through a second aperture formed in the back member, the back member having a first plurality of vertically-oriented ridges formed therein such that the first arcuate slotted aperture is oriented at a non-perpendicular angle relative to the first plurality of vertically-oriented ridges;
• adjusting, via the first arcuate slotted aperture, an angular position of the back member to a select angular position relative to the building structure;
• and
• securing the back member in the select angular position relative to the building structure utilizing a first locking washer, the first locking washer comprising a second plurality of vertically-oriented ridges that are complementary to the first plurality of vertically-oriented ridges such that engagement of the second plurality of vertically-oriented ridges with the first plurality of vertically-oriented ridges impedes angular movement of the back member relative to the building structure.