y it only travels 150 rods to do upon its lower end meshing into a similar pinion upon open ditch for digging ditches in soil of such charac- that amount of work. The track holds it up to the the axle. After the machine has passed from off one ter that it is necessary to employ tiles. section of… … tion in relation to it may to the revolving wheel, B, which is carried around on be obtained by addressing its axis by means of a pinion Messrs. Brayley & Pitts, at on the shaft, c, meshing into the rack, d, on Buffalo, N. Y., to whom the invention has been front of the section on which the machine…
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