Jethro Wood,
inventor of the
modern plow.
JETHRO WOOD.
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.
“No citizen of the United States has conferred greater economicalbenefits on his country than Jethro Wood—none of her benefactorshave been more inadequately rewarded.”—Wm. H. Seward.
By FRANK GILBERT.
CHICAGO:
RHODES & McCLURE.
1882.
Entered according to Act of Congress, in the year 1882.
By I. U. KIRTLAND,
In the Office of the Librarian of Congress, at Washington.
STEREOTYPED AND PRINTED
BY
THE CHICAGO LEGAL NEWS CO.
FAC-SIMILE OF THE ORIGINAL WOOD PLOW.
EXPLANATION OF THE FOREGOING FAC-SIMILE.
Side view of Plough. A Mould-board, the form of which is claimed asnew. B Share claimed. C Standard claimed. DD Screw-bolt, and notconfining the beam to the Standard. a, b, c, d, e, the 1st,2d, 3d, 4th and 5th sides mentioned in the specification. g, g.Excavation at the fore part of the mould-board to receive the sharewhich fills it up and forms an even surface. h Hole to receive theknob or head cast on the under side of the share, which, on beingshoved up to its place, nooks under the mould-board at the upper sideof the hole, and is held in its place by a wooden wedge driven betweenthe knob and the lower side of the hole. f Notches in the Standardto receive the latch i in elevating or depressing the beam. s, t,v. Straight diagonal lines touching the mould-board the wholedistance. u Vertical or plumb line touching the mould-board from topto bottom. H Reverse side of the share. x Knob to hold it fast tothe mould-board. y Side view of knob. zz Shiplaps fitting underthe point and edge of the mould-board. k Another form of standardkeyed on top of beam. Fig. 2d, landside view: E The “landside”. Fpart of landside cast with mould-board. mm Cast loops to hold thehandles claimed. n Head of screw-bolt held by a shoulder made by aprojection from the mould-board and standard, through which the boltpasses up to the beam. o Share claimed. p Shiplap claimed. GInside view of landside. r Tennon at forward end to fit into adovetailed mortice on the inside of that part which is cast with themould-board.