Safety Retainer For Shackle Bolt
Shackle-bolt retainer installed and removed quickly. Retainer installed on shackle used to lift heavy loads. Reusable locking device replaces safety wire.
Falls, Elwood S.↗
Engineering topics
Falls, Elwood S.
Publications and source records attributed to Falls, Elwood S..
Staking Pliers
Ordinary pliers modified by addition of hard-pointed setscrew in one jaw and groove in opposite jaw. When jaws squeezed together on bolt, point deforms thread. Prevents loosened nut from backing off under vibrations or impact. In comparison with center punch and hammer, pliers easier and faster to use and less likely to damage parts.
Falls, Elwood S.↗