Patent for a new and improved coupling for thills. This design consists in "[t]he combination, with the clip having the ears provided with the openings of the draft-iron having the eye at its inner end adapted to be inserted between the ears of the clip and having the transverse central opening" (lines 94-98). Further, it has "the coupling-bolt having the inclined shoulder and the nut provided with the [other] inclined shoulder and the sleeves having the inclined inner ends adapted to enter the inclines of the draft-iron and provided at their outer ends with the inclined recesses" (lines 1-7).