jumbo

I purchased a vine, and was rather impressed with the appearance of the grape; so I took the time to go down to see the vine, the Jumbo [a cultivar of muscadine, Vitis rotundifolia], and I saw a very large vine, trained on an arbor, perhaps covering a space of fifteen to twenty feet square, with the clusters hanging down through the lattice work;[…]]

In all three tunnels the full face was drilled at once. […] [T]he mucking machine was immediately converted into a drilling jumbo upon completion of the mucking operation. Both jumbos carried all the posts and bars necessary for the mounting in any desired position of four automatic DA-30 drifters.