the side that takes the thrust. The thrust-nuts that bear up against the
bearings must be locked into position on the threaded rod. I have
found that elastic lock-nuts work well, but a pair of jam-nuts or a
single nut brazed to the threaded rod could be substituted.
Both barrel-nuts must be located in one jaw and both bearings in
the other jaw to get the standard tightening and loosening rotation. It
will take twice as many turns to close the toolmaker’s clamp, but you
get twice the clamping force for the same tightening torque.
—LARRYPAGENDARM,Santa Clara, Calif.
CLAMPING