Abstract: A dispenser for liquid soap includes a compressible nipple having an annular flange mountable on a soap container in communication with the outlet opening thereof, and clamping therebetween a valve assembly including a slitted flexible diaphragm and a backing disc. The disc has a discharge opening in alignment with a check valve slit in the diaphragm for controlling discharge of soap into the nipple for dispensing upon compression of the nipple. The disc and the nipple flange respectively have annular grooves formed in the facing surfaces thereof, a vent valve slit in the diaphragm being aligned with these grooves. The flange groove communicates with the outside of the nipple through a vent opening and the disc groove communicates with the outlet opening of a container through a vent orifice in the disc.

Abstract: A planter population reduction drive system includes a third shaft adapted to be added onto a planter implement transmission unit having existing first and second shafts. The individual planter units are driven by the second shaft which is connected by a series of adjustable wheels to the first shaft for a selected population rate. The new third shaft is driven by the ground wheels and includes primary and secondary belt drive connections to the first shaft. A normally engaged wrap spring clutch on the third shaft normally provides for the transmission of torque from the third shaft to the first shaft but when the wrap spring clutch is disengaged, torque is transmitted through a secondary drive wheel which is mounted on the third shaft by an over running clutch.