Bought 1/2-13 coupling nuts and bolts; assembled and partially cross-drilled on each side. Took scissor jacks and coupling nut assemblies to Leo Knowlden's shop; welded bolts to nuts and assemblies to scissor jack screw tabs. Sockets and U-joints can now be used to operate jackscrew to raise and lower jacks for lifting aircraft main wheels on jackpoints. Martin: .5 hr. Leo Knowlden: .5 hr
