Abstract: A drive apparatus has a first and second shaft rotatably mounted on the agricultural fertilizer implement. A drive wheel is fixed to the first shaft and an output wheel fixed to the second shaft. There are a plurality of wheels coupled to the first shaft and a plurality of wheels of varying sized fixed to the second shaft. A flexible connecting means is trained between a pair of selected wheels on the first and second shafts. A drive means rotates the drive wheel. A connecting means couples output wheel to the metering device. An engaging means is coupled to each of the plurality of wheels located on the first shaft coupling the selected wheel on the first shaft with the first shaft so that the wheel will rotate with the first shaft. There is also a control means that allows a user to selectively activate one of the engaging means located on the first shaft. When one of the engaging means is activated, one of the plurality of wheels is coupled to the first shaft and begins to rotate with the first shaft.

Abstract: A process for aminoalkylating a polymer containing a plurality of ##EQU1## amide groups as integral parts of the main polymer chain is described wherein aminoalkyl groups pendant from said amide groups are formed. The process comprises (a) swelling the polymer, such as Nylon 6, in an acidic swelling agent such as aqueous formic acid; (b) immersing the swollen polymer in a liquid alkylenimine bath such as ethylenimine; (c) heating the alkylenimine treated polymer from about 70.degree. to 140.degree. C; and (d) recovering the polymer from the swelling agent, unreacted alkylenimine, etc. The heating step is preferably done in an atmosphere of the alkylenimine.

Abstract: A powdered orange flavor containing 27 fold orange oil adsorbed on rice sch was prepared by a menthol treatment process. The powder contained the equivalent flavoring potency of 18% by wt. of whole orange oil, which was the maximum obtainable; other rice starch samples contained lesser amounts and had lower folds. Two other edible polymers, egg albumin and Mor-rex (hydrolyzed cereal solids), also had some capacity, when treated with methanol, for polar orange oil components. These were less suitable than starch, however, because of inadequate concentration on the polymer, a low degree of folding, or distorted oil compositions.