Year: 1888

page_text: Date of Application, 11th Feb., 1888
Specification Accepted, 16th Mar., 1888
I, JOHN CARSON of Hamilton in the county of Pembina and territory of Dakota,
United States of America, Farmer, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statenient :-
-
This invention pertains to certain new and useful improvements in grain-drills,
having for its object to provide simple and efficient means for increasing the
distribution of the seed and to permit the drill to conform to any unevenness of the
ground; and the invention consists in the detailed construction, combination, and
arrangement of the parts, substantially as hereinafter fully set forth, and particularly
pointed out in the claims.
In the accompanying drawings, Fig. 1 is a plan view of my invention. Fig. 2 is a
side view thereof.. Fig. 3 is a front elevation. Fig. 4 is a vertical transverse section
on the line, Fig. 1; and Fig. 5 is a detail sectional view.
Corresponding paris in the several figures are denoted by the same letters of
reference.
This improvement consists, essentially, of two distinct seeders or drills connected
with each other and additionally supported by a third centrally-disposed carrying-
wheel, the same being rigidly connected on the inner end of the axle of the carrying-
wheel of one of the seeders or drills, from which axle motion is transmitted to the
ordinary agitating mechanism of each seeder or drill, all of which will now be fully
described.
Referring to the drawings, A A¹ represent two long horizontally-disposed frames of
a seeder or drill composed each of two longitudinal bars, a a, to the ends of which are
connected forwardly-projecting bars a² a¹, having front connecting-bars, all a".
These front connecting-bars, all al, are extended a short distance beyond the inner
opposite bars, a¹ a¹, of each seeder or drill frame, and are suitably hinged or otherwise
connected together, as shown at a², Fig. 1.
The seeder or drill frame A is supported at its outer end by a carrying-wheel, B,
the axle of which is suitably secured in boxing of ordinary construction disposed
between the longitudinal bars a a of said frame, as clearly shown in Fig. 1. The
seeder or drill frame A¹ has likewise secured to its outer end a wheel, B', the axle b

page_text: of which projects longitudinally through the frame A¹ and extends a short distance
beyond the inner end thereof, and on this end of the axle is rigidly secured a third
central carrying-wheel, B, the same being designed to rotate within the space formed
between the inner opposite bars, a', of the seeder or drill frames A A¹. This
projecting end of the axle has also secured thereon a pinion or gear-wheel, C,
working in an approximately oblong slot or opening formed in the centre of a box, C¹,
also secured on said end of the shaft, the same, together with the pinion, being
retained in proper position by means of a nut, 1, screwed on the end of the axle and
bearing against the side of said oscillating box, as shown. The narrowed projecting
ends of this box have sleeves C adapted to oscillate therein, said sleeves being
fitted in suitable openings or apertures, formed in the projecting ends of the
longitudinal bars a a of the seeder or drill frame A, as shown.
On the axle, within the frame A¹, is rigidly secured a small pinion or gear
wheel, , similar to the pinion or gear-wheel above referred to. From these
pinions or gear-wheels motion is transmitted (by reason of the turning of the
axle b) to the seed or grain agitating mechanism disposed within the ordinary hoppers
designed to be suitably secured on the frames A A¹; but as, these features form no
part of my invention, further reference thereto or any illustration thereof is not
necessary, the same being of any ordinary construction.
It will be understood, of course, that the seed or grain hoppers above referred to
are, as customary, provided with the usual drills and pipes or tubes for conveying the
grain from said hoppers..
E E are two parallel forwardly-projecting bars having rear hooked ends designed
to engage with eyes or apertured ends of two bars or straps, E', secured to the under
side of the longitudinal bars a at about the centre thereof. These parallel bars are
connected at their outer ends and at their centres by cross-bars e¹ e¹, the same
extending parallel with the front connecting-bars of the frames A A. To the centre
of these cross-bars e' is connected the central tongue or pole, e², as shown in Fig. 1.
The parallel bars E E are secured in position against the under side of the front
connecting bars, all a", by means of stirrups e" e, the same being sufficiently large
to permit of the free movement of said bars, occasioned by the vibration of the hoppers
and frames, said bars being rounded at the points where passed through the stirrups
to enable them to readily move as stated.
To the tongue or pole e, at a point about midway the cross-bars e¹, is secured a
plate, F, having at its rear end two apertured cars or lugs, ff, to which are connected
the forward ends of two similarly-constructed rods, FF, which rods extend
rearwardy in opposite directions, and are secured to suitable staples at the centre of
each seeder or drill frame A A¹. These rods F are slightly bent or upwardly curved
where passed over the front connecting-bars of the frames A A' and the central cross-
bar, el, so as not to interfere with the upward and downward movement of the said
seeder or drill frames.
From what has been said it will be seen that my invention provides for increased
distribution capacity by the employment of two distinct seeders or drill frames for
supporting the hoppers and distributing mechanism; that the same are properly
supported and carried at their inner opposite ends by a central carrying-wheel; and
that by means of the oscillating box-connection between the axle of one frame and the
ends of the longitudinal bars of the other frame, and the connection between the front
connecting-bars, the two frames are permitted to have a free vibratory motion, the
connections with the tongue or pole being so arranged as not to interfere therewith,
as previously stated.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination, with the two seeder or drill frames, of the third central
carrying-wheel secured on the projecting end of the axle of one. carrying-wheel and
having a box-connection with one of said frames substantially oz dazanibal

page_text: 2. In a grain-drill of the class herein described, the combination, with the frames
and their carrying-wheels, of the central supporting-wheel, secured upon the axle of
one of said carrying-wheels, the box-connection between one end of said axle and the
adjoining frame, and the hinge-connection between the front cross-bars of said
frames, substantially as shown and described.
3. The combination of the two frames having the two longitudinal bars, the
carrying-wheels having their axles projected between said bars, the third carrying-
wheel supported upon the inner end of one of said axles, the box-connection upon said
axle, and the hinge-connection between the front connecting bars of said frames,
substantially as shown and described.
4. The combination, with the seeder or drill frames having their front cross-bars
connected together, of the central carrying-wheels, the forwardly-projecting parallel
bars connected to said frames, the cross-bars, the tongue or pole, and the rods having
curved portions, substantially as shown and described, said parallel bars being passed
through stirrups of the front bars of said frames, as stated.