Correct spelling for the English word "Swingel" is [swˈɪnd͡ʒə͡l], [swˈɪndʒəl], [s_w_ˈɪ_n_dʒ_əl] (IPA phonetic alphabet).
That part of a flail which falls on the grain in thrashing.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.