An attachment for farm implements, particularly harvesters, binders, and the like, has recently been invented, which provides means for operating such implements independently of the traction wheels. It consists of a motor, preferably a gasoline motor, of such design and so mounted that it can easily be attached to any implement. The motor is supported on a platform which is secured by U-shaped bolts to a pair of tubular members. By means of a number of U-shaped clamps, these tubular members may be quickly secured to the side frame members of the implement. The motor is provided with sprocket gearing, whereby it may be operatively connected with the machinery of the implement. No changes whatever are made in the structure of the implement, and in applying the attachment, all that is necessary is to remove the chain from the sprocket gear carried by the traction wheel. and connect the sprocket gear "f the motor to the driving sprocket of the mechanism. The accompanying engraving shows the motor in position on a harvester and binder. The motor is inclosed in a casing to keep out dust and dirt. The casing may be opened to provide access to any part of the motor whenever desired. The engine employed is u comparatively small one, and its weight dO3 not materially incnase the weight of the implement; but as it operates all the mechanism of the harvester and binder, the power required of the horses to draw the implement is reduced to a very material extel_t, thus. making it possible to operate the machine at a milch faster rate and with greater efficiency. If any- thing should accidentally happen to the engine, or the supply of fuel run out, the driving chain may be again applied to the sprocket gear on the traction wheel, and the machine operated in the same manner as befo.e. A patent on this improved attachment has been granted to Messrs. G. O. Helvig and E. Danielson, of Dawson; Minn.