Improvement in Gang and Sulky Plows. Page: 4 of 4
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2 199,083
tending downward at each side of said pole. end with a longitudinal eye, p, by means of
These arms are connected with the iront end which and a set-screw or other equivalent de-
of beam A by means of pivoted rods 1. Shaft vice it is adjustably clamped to the hound I.
L is provided upon one end with an operating- This adjustability is rendered necessary be-
lever, M having alongitudinal slot, through cause the axle aforesaid is adjustable relative
which extends a metallic adjusting-arc, N, to the length of the machine.
rigidly secured to the platform aforesaid. What I claim as new, and desire to secure
This are is provided with spaced perforations by Letters Patent, is-
o, that register with corresponding perfora- 1. The combination, with the plow-beam
tions o' in the slotted part of the said lever M. frame A, having plows I' upon its side bars,
This latter and the arms k 7' aforesaid are at the one in advance of the other, and axle C,
right angles, or nearly so, to each other, and having the double crank E, of the transport-
when the former is thrust to the front the cor- ing-wheel D', arranged on said axle, and work-
responding end of the beam will be raised, ing between the side bars a a' upon solid
and the bite of the plows upon the ground ground between the furrows of said beam-
correspondingly lessened. A -reverse move- frame, substantially as specified.
meant of this lever will have an opposite effect-- 2. The combination, with the axle C, having
that is, the penetration of the plows into the the double crank E, of the transporting-wheel
ground will be increased. D', journaled upon the outer bend of said crank,
The axle aforesaid is provided with an oper- working between. the side beams a a' of the
ating-lever, P,rigidly secured thereto, through plow-beam frame, and the connecting-rods c
the medium of which and of the double crank v', pivoted, respectively, to the said side bars
and arms above described the plow-beam and and to the end and inner bend of said crank,
plows are raised out of and lowered into the substantially as specified.
ground. This lever, when thrust to the front, In testimony that I claim the above I have
engages a catch, Q, having a transverse foot- hereunto subscribed my name in the presence
plate, R, by means of which the plows are held of two witnesses.
in the raised position. JOHN ROBERT IcCOIRMICK.
In order to remedy the bad effects of a side
draft, the axle next the wheel D is provided Witnesses:
with collar, to which is rigidly secured ame- NAT. Q. HENDERSON,
tallic rod, R'. This rod is provided at its front I 1.II MONTGOMERY.
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McCormick, John Robert. Improvement in Gang and Sulky Plows., patent, January 8, 1878; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth166747/m1/4/: accessed May 21, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.