Letters Patent Volume 12

Letters Patent Volume 12

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1861 edition. Excerpt: ...in each side of frame A, and is parallel with the hopper F, and also with the axle C. On this shaft E a series of segmental steel plates h h h h are arranged, the outer edges of which are concentric with the axis of the shaft to which they are secured, and their length is the same from end to end of the shaft E. These segmental plates hhhh are so arranged on their shaft that the plates of one series will be opposite the plates of the next series, as is shown in figures 1 and 2 of the drawings. These plates hhhh are also bent in such a form that their outer edges form a nearly continuous spiral line, from one end to the other of the series, thus giving to the plates a transverse spiral action upon the earth, with which their circumferential edges come in contact. The forward radial or straight edges of the plates hhhh, should be kept sharp, so as to cut through the sods readily, and, if desirable, all the edges of these plates may be sharpened. These plates receive a rapid rotary motion from the axle C, as before described, and they slice and pulverize the soil, and stir the seed into it, as the seed falls from the shelves under the hopper F, and between these rotating blades h h h h. J J are the hounds of draught pole J'. These hounds J J are carried along on each side of frame A, and pivoted at i i to the longitudinal bars of the frame A. The transverse bar of hounds J J is connected to the front end of frame A by a perpendicular adjusting screw K, which passes through a rocking nut/, and is fastened at its lower end to the back edge of a plate k, which is securely bolted to the bottom of a cross bar of the hounds. Underneath of plate k is pivoted a caster wheel N, which serves as the guide wheel. The hounds are pivoted to the frame A...show more

Product details

  • Paperback | 164 pages
  • 189 x 246 x 9mm | 304g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236957695
  • 9781236957696