Patent for a new and improved attachment for harvesters and mowers. This design is "to afford means whereby a mowing or reaping machine may be enabled easily to travel over soft or marshy ground; . . . the novelty consists in a shoe proper for each driving-wheel of the machine, each shoe made of a curved piece of metal . . . and provided with a long narrow slot running lengthwise of the shoe, . . . and so adapted that under each wheel one of the shoes shall be placed in such a manner that one of the shoes shall pass through the longitudinal slot in the shoe" (lines 19-32).