Abstract: A protective lifting system includes first and second mounting hooks each having, respectively, a line and pulley connection eyelet ring mounted thereon and a mounting bar connection eyelet ring mounted thereon which extends generally perpendicular to the shank section of the mounting hook, a pulley device mounted on the second mounting hook, a lift line having a first end connected to the first mounting hook and a second end which extends through the pulley device, a mounting bar operative to engage the mounting bar connection eyelet ring on the first and second mounting hooks to lift the hooks into an elevated supported position, the lift line being operative to lift an object to a safe elevated position by drawing the second end of the lift line through and away from the pulley device thereby decreasing the length of the lift line extending between the first and second mounting hooks.

Abstract: In one form of this invention there is proposed an aid for a routine checking procedure which includes means to step through such a routine with one or more means providing an output to a checker to remind the checker of the routine step required to be performed in a preset order, characterized in that the aid further includes a means to request an emergency routine check at any time through the routine checking procedure and this being adapted to be the emergency steps of checking required at the corresponding routine step at which the checking is at the time of the emergency check.