Abstract: A gang assembly of a tillage implement has disc blades suspended from a support bar with a disc hanger assembly. A disc adjustment mechanism is configured to pivotably attach the disc hanger assembly for each of the plurality of disc blades to the support bar. The disc adjustment mechanism includes a pivot mount for each of the plurality of disc blades. Each pivot mount has a pivot configured to pivot the pivot mount, a first arm connected to the disc hanger assembly, and a crank arm. A shuttle is attached to the crank arms and causes each pivot mount to pivot and adjust the disc angle of the associated disc blade. The disc hanger assembly is configured to position the disc blade such that a vertical center line of the disc blade extends through the pivot point of the pivot.

Abstract: A gang assembly of a tillage implement has disc blades suspended from a support bar with a disc hanger assembly. A disc adjustment mechanism is configured to pivotably attach the disc hanger assembly for each of the plurality of disc blades to the support bar. The disc adjustment mechanism includes a pivot mount for each of the plurality of disc blades. Each pivot mount has a pivot configured to pivot the pivot mount, a first arm connected to the disc hanger assembly, and a crank arm. A shuttle is attached to the crank arms and causes each pivot mount to pivot and adjust the disc angle of the associated disc blade. The disc hanger assembly is configured to position the disc blade such that a vertical center line of the disc blade extends through the pivot point of the pivot.

Abstract: A gang assembly of a tillage implement has disc blades suspended from a support bar with a disc hanger assembly. A disc adjustment mechanism is configured to pivotably attach the disc hanger assembly for each of the plurality of disc blades to the support bar. The disc adjustment mechanism includes a pivot mount for each of the plurality of disc blades. Each pivot mount has a pivot configured to pivot the pivot mount, a first arm connected to the disc hanger assembly, and a crank arm. A shuttle is attached to the crank arms and causes each pivot mount to pivot and adjust the disc angle of the associated disc blade. The disc hanger assembly is configured to position the disc blade such that a vertical center line of the disc blade extends through the pivot point of the pivot.

Abstract: A method and apparatus for tilling a field that includes a frame, a ground engaging tool attached to the frame wherein the ground engaging tool creates an initial residue flow pattern and a spike tooth linked to the fame and positioned approximately inline with the initial residue flow pattern, wherein the tooth alters the flow pattern of the residue.

Abstract: A testing device for semiconductor components and a method of making the device is described. The testing device includes a support structure having an outer edge, and an adhesive film disposed on the support structure to hold a semiconductor wafer in position on the support structure so that neither the adhesive film nor the semiconductor wafer extends beyond the outer edge of the support structure.

Abstract: An auger coupler for a folding grain conveyor is disclosed which operates to connect an upper auger to a lower auger. A drive member adapted to be connected to the lower auger include a pilot shaft designed to help align the drive member with the driven member and an annular thrust bearing surface surrounding the pilot shaft. Spaced outwardly from the thrust bearing surface is an annular row of drive teeth. The drive teeth project axially upwardly from an annular base surface which is parallel to and concentric with the thrust bearing surface. A driven member adapted to be connected to the upper auger includes a receiver sized and shaped to accept the pilot shaft of the drive member. The receiver is also surrounded by an annular thrust bearing surface. Spaced radially outwardly from the thrust bearing surface is an annular row of driven teeth which are structurally identical to the drive teeth.

Abstract: A disc mounting system includes the attachment of each disc to a disc gang bar via a dedicated leaf spring. Each of the leaf springs, which can be generally U shaped, are attached at a top end to the gang bar and at a lower leg to a disc spindle such that the disc is positioned at least partially alongside the spring lower leg. The mounting system allows the disc to deflect vertically, laterally or torsionally when the disc encounters an obstacle. An optional shield can be attached to the leaf spring to prevent soil and debris thrown out by adjacent discs from entering the spring. A disc scraper blade can also be attached to the shield.

Abstract: A seed drill includes a conventional single or double disc blade soil opener for creating seed trenches for the deposition of seeds by a seeder. A scraper/soil firming assembly is attached to the outside of each disc blade axle. The scraper/soil firming assembly includes a bracket for mounting a scraper/soil firming blade and a locking plate for locking the mounting bracket and blade at a selected angle relative to the disc blade axle. The scraper/soil firming blade is a flat bar extending downward and rearward from the respective disc blade and positioned alongside the disc blade and to act both as a blade scraper and as a soil firmer.

Abstract: A disc mounting system includes the attachment of each disc to a disc gang bar via a dedicated leaf spring. Each of the leaf springs, which can be generally U shaped, are attached at a top end to the gang bar and at a lower leg to a disc spindle such that the disc is positioned at least partially alongside the spring lower leg. The mounting system allows the disc to deflect vertically, laterally or torsionally when the disc encounters an obstacle. An optional shield can be attached to the leaf spring to prevent soil and debris thrown out by adjacent discs from entering the spring. A disc scraper blade can also be attached to the shield.