Press wheel and depth control attachment for seed grain drills

Claim 1

IN A SEEDER DRILL HAVING DISKS AND SEED BOOTS AND ARMS BY WHICH THE DISKS AND SEED BOOTS MAY BE FORWARDLY PIVOTALLY SUSPENDED FROM THE SEEDER DRILL, AND A PRESS WHEEL SECTION, THE SEEDER DRILL HAVING A CROSS FRAME BAR AND THE PRESS WHEEL SECTION HAVING A TRANSVERSE BAR AND A SERIES OF PRESS WHEELS MOUNTED TO SWING LATERALLY IN SUPPORTING RELATION THERETO, SAID TRANSVERSE BAR HAVING FORWARDLY EXTENDING ARMS FIXED THERETO BY WHICH THE PRESS WHEEL SECTION MAY BE PIVOTALLY ATTACHED IN FOLLOWING RELATION TO THE SEEDER DRILL CROSS FRAME BAR, MEANS SUPPORTING THE SEEDER DRILL BY THE PRESS WHEEL SECTION, SAID MEANS COMPRISING A PAIR OF SPACED UPRIGHTS MOUNTED ON THE TRANSVERSE FRAME BAR AT THE END PORTIONS THEREOF, SLEEVE COUPLINGS VERTICALLY SLIDABLE ON THE UPRIGHTS, REARWARDLY EXTENDING BARS FIXED TO THE SEEDER DRILL CROSS FRAME BAR, MEANS FIXEDLY CONNECTING SAID REARWARDLY EXTENDING BARS TO THE SLEEVE COUPLINGS, MEANS LIMITING THE UPWARD MOVEMENT OF THE SLEEVE COUPLINGS ON THE UPRIGHTS, AND MEANS REARWARDLY SUSPENDING THE SEEDER DISKS AND SEED BOOTS FROM THE TRANSVERSE FRAME BAR.