Corner locks for concrete forms

Claim 1

A corner assembly of a concrete form comprising: a substantially upright sheeting defining inner walls of said corner assembly; first and second whalers being substantially horizontal and supporting said sheeting to form an outer corner assembly; an end face of said first whaler abutting against the side of said second whaler adjacent at the end of said second whaler; a corner lock for releasably holding said first and said second whalers in an assembled position to support said sheeting; said corner lock comprising a lever base and a catch base, each of said bases being secured to one of said whalers; said lever base being provided with a lever assembly including a lever pivotally connected to a bracket means and carrying a hook link; the catch base carrying a catch adapted to be engaged with said hook link; one of said bases being substantially straight and secured to said second whaler, the other base being bent to form two arms to angularly fit said corner, one of said arms being secured to said first whaler, the other of said arms being in engagement with an outer face of said second whaler, whereby the clamping force created by the locking of said lock is substantially parallel to said outer face of said second whaler.