the fact that the shank has an offset 132a so that the hook 133 may be aligned with the latch bar 126 although the loop 134 is recessed in the framework of the door the hook support 150 comprises an angle member having a fastening web 151 and an upright web 152 in which there is formed an upwardly open notch 153 and as seen in fig7 the hook support 150 is so located with reference to the hook mounting bracket 117 that the portion of the hook shank 132 which is immediately adjacent the hook 133 rests in the notch 153 reference to fig8 shows that the bights of the camming lever 119 permit enough angular displacement of the hook member 118 relative to the plane of the door for the shank 132 to be received in the notch 153 the support 150 is entirely recessed forward of the inner face of the intermediate frame member 114 so that substantially the entire hook member 118 is also positioned above the intermediate frame member 114 when the hook member is in the idle position illustrated in broken lines in fig7 consequently the hook member does not interfere with fully opening the door 112 because as seen in fig2 and 3 there is enough clearance between a door and the.