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Described and illustrated is an attachment which can substitute for the cam on cam-actuated programmers. By providing an index point it permits precise preselection of a desired control level. A nut-and-threaded-shaft adjuster allows for small changes in setting.
Key Words: Adjuster Temperature control Index point
2 Research Agronomist, Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Pullman, Washington, 99163.
Received for publication May 16, 1969.
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