Which preposition to use with pintles

of Occurrences 1%

At first it was thought either that the pintles of the rudder were broken or that the stern-post was rent; but upon examination both appeared to have escaped; and as no leak was observed during the night I indulged the hope that the noise was not occasioned by any accident that would inconvenience us, or oblige our premature return to Port Jackson.

Which preposition to use with  pintles