Jethro Wood, Inventor of the Modern Plow. A Brief Account of His Life, Services, and Trials; Together with Facts Subsequent to his Death, and Incident to His Great Invention

"He therefore craves the aid and elucidation of his drawing, and of his model, in their totality and in their several parts, to render plain and sure whatever there may be, from...

SIDE VIEW of Plough. _A_ Mould-board, the form of which is claimed as new. _B_ Share claimed. _C_ Standard claimed. _DD_ Screw-bolt, and not confining the beam to the Standard....

"This was a great triumph; but it was now the late autumn of 1845, and the last grant of the patent had little more than a year to run. Wood again repaired to Washington to appl...