Sway control device

Claim 1

A tractor hitch including a pair of laterally spaced draft links pivotally mounted on a tractor frame for up and down vertical movement about a transverse axis between a lower operative position and an upper transport position, and for lateral sway in a plane passing through said axis, a first pair of laterally spaced sway blocks mounted on said frame, a second pair of laterally spaced sway blocks removably mounted on said frame, means for removably attaching said second pair of sway blocks to said frame, said first pair of sway blocks having first upper outwardly facing vertical surfaces spaced apart a first distance and located on a first predetermined radius from the transverse axis and having second lower outwardly facing vertical surfaces at said operative position spaced apart a second distance substantially less than said first distance and located a distance from said transverse axis less than said predetermined radius, said second pair of sway blocks having outwardly facing vertical surfaces spaced apart when mounted on said frame a distance equal to said first distance and located a distance from said transverse axis equal to said predetermined radius and being at said operative position, rub means on said links located a distance from said transverse axis equal to said transverse axis equal to said predetermined radius, whereby the rub means on said links are not opposite said second lower outwardly facing, surfaces in the lower operative position of said links but are opposite the said first upper surfaces in the upper transport position of said links, and whereby the rub means on said links in the operative position are opposite the vertical surfaces on said second pair of sway blocks when said second pair of sway blocks are attached to said frame and said links are in said lower operative position. 8