Abstract: An ink jet print head is provided which, during a suction-based recovery operation, can effectively remove air bubbles from the common ink path by producing an ink flow in the common ink path. In each of a plurality of bubble forming chambers where an element is installed to generate a thermal energy, there are provided a first ink path for leading ink directly from the ink supply port and a second ink path for leading ink from the common ink path formed on a far side of the array of the bubble forming chambers with respect to the ink supply port. The plurality of the first ink paths include those ink paths with less flow resistance than that of the second ink paths and those ink paths with higher flow resistance than that of the second ink paths.

Abstract: The invention relates to a method of removing selected rows of corn out of a corn field which is particularly important for removing male rows of corn in a field of seed corn. The female seed corn rows are left undamaged, as a harvester passes over the top of the seed corn. Seed corn is grown with one or two rows of a male corn which pollinate three to five rows of the female seed corn. Once the pollination occurs, the male corn is unwanted and can cause contamination of the species of corn.

Abstract: A sugar cane harvester has a wheel-mounted or equivalent main frame, a base cutter for cutting the cane near ground level as the harvester advances, a chopping cutter for cutting the cane stalks into billets, means for feeding the stalks from the base cutter to the chopping cutter, and means for elevating and discharging the billets, the chopping cutter and elevating means including a rotary cutter with a knife blade on a rotatable shaft, and a thrower having a vane extending from a thrower shaft, the two shafts being parallel and counter-rotated, the cutter knife blade and the vane coacting to sever cane fed to the chopping cutter into billets, the thrower vane acting to throw the severed billets upwardly through a cane guide chute from which they are discharged, preferably into a bin mounted on the main frame and capable of being tilted to empty its contents.