Patent for "constructing and arranging a gang or series of plows in one frame that they may have an adjustment on the supporting-runners, and a means of self-adjustment vertically, so that they may be set for furrow-slices of any given depth, and any one of the series may give way to an undue resistance in the line of the furrow without disturbing any other of the plows." (Lines 20-28) Includes instructions and illustrations.
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Titles
Main Title:
Improvement in Gang-Plows.
Added Title:
Gang Plow.
Description
Patent for "constructing and arranging a gang or series of plows in one frame that they may have an adjustment on the supporting-runners, and a means of self-adjustment vertically, so that they may be set for furrow-slices of any given depth, and any one of the series may give way to an undue resistance in the line of the furrow without disturbing any other of the plows." (Lines 20-28) Includes instructions and illustrations.
Physical Description
[1], 2 p. : ill. ; 23 cm.
Notes
Specification forming part of Letters Patent No. 12,791, dated May 1, 1835; extended seven years; reissue No. 3,716, dated November 9, 1869.