safety catch assembly 30 in the locked position with the bail 27 looped under the bracket 28 with the safety catch assembly 30b unlocked as shown the unit 9b is free to be removed from the wall 26 and jumped by the crane 32 to the next pouring position the crane 32 then settles the unit 9b into the upper position such that the support bolt 92b and safety lock 29b again engage the uppermost wall mounted anchor brackets 28 as the weight of the unit 9b is shifted from the crane 32 to such upper anchor brackets 28 the safety lock 29b automatically and securely engages the upper anchor bracket 28 to lock and maintain the unit 9b in position this fully automatic jumping process is entirely unique in the field and is both safer and more efficient than any known methods in use today once hung in position from the anchor brackets 28 the crane hook 36 is disengaged from the lifting lug 34 a waler standoff jack 38 is provided as shown in the right portion of fig1 to plumb the assembly once plumb anchor ties 40 are tightened and the wallform 8b is ready to be positioned for the pour the adjustable pipe braces 24b are extended causing the wallform 8b to pivot forward from the position similar to that shown in fig3 a to the pouring position partially shown in dash dot outline and identified in this new position by reference numbers having a double prime 34 this operation also causes a further novel safety mechanism to be engaged this uplift stop mechanism 88 engages the shoulder 89 of.