(under subclass 111) Apparatus including a reticulate surface which is moved by contact with the earth as the apparatus progresses across a field and which is adapted to receive a mass of excavated earth and entrained buried objects to retain the latter but to allow the earth to sift or fall through.
(1) Note. The reticulated surface is usually a rolling wheel or endless belt.
SEE OR SEARCH THIS CLASS, SUBCLASS:
93, and 125, for rolling separating diggers and elevating conveyors, respectively.
108, for screens or sieves which are driven by a wheel or the like rolling on the ground.
