The hook portion 74 has a rounded cam surface 80 which will be engaged by {TAIL ~ the edge} of the slotted portion 78 when the cover portion 30 is moved towards a closed portion thereby camming the lever in {HEAD ~ a clockwise direction} as viewed in FIG 5 enabling the hook portion to engage a latching surface 82 of the front cover portion 30 thereby locking the cover portion in a closed position under the action of the spring member 68 
The hook portion 74 has a rounded cam surface 80 which will be engaged by { TAIL ~ the edge } of the slotted portion 78 when the cover portion 30 is moved towards a closed portion thereby camming the lever in { HEAD ~ a clockwise direction } as viewed in FIG 5 enabling the hook portion to engage a latching surface 82 of the front cover portion 30 thereby locking the cover portion in a closed position under the action of the spring member 68
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