Disk Harrows and Cultivators.
Year: 1889

page_text: Date of Application, 9th Sept,, 1889-Accepted, 12th Oct., 1889
COMPLETE
SPECIFICATION.
Disk Harrows and Cultivators.
I, EDWARD C. BOYER, a citizen of the United States, residing at Dayton, in the
county of Montgomery, and State of Ohio, gentleman do hereby declare the nature of
my invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to certain improvements in that class of cultivators known as
"Disk Harrows" and it has for its objects to provide an improved connection for
securing the gang-beams to the tongue, whereby the said beams will be permitted to
swing properly on said connections and to move longitudinally thereon, while at the
same time they are prevented from rising or riding up vertically at the connecting
points as more fully hereinafter explained.
My invention further has for its objects to provide for resisting the end thrust of the
adjacent ends of the gang shafts, so as to permit the said shafts to rotate independently
of each other and with the least possible friction.
My invention also has for its objects to provide for adjusting the gang
axles at different angles to the tongue.
shafts or
The invention also has for its objects to give the disks that form and position which
shall present greater obliquity to the line of the draft thereby stirring the rail more
thoroughly; and also to so support the said disks that the two gangs will readily
adapt themselves to deviations of the surface of the ground.
My invention still further has for its objects to provide for giving a flexible draft to
the gang-shafts directly from the center thereof, so as to permit the same to vibrate
freely in any direction: and my invention finally has for its objects to provide for
cutting or plowing away the ridge left in the field between the adjacent gangs.
The above mentioned objects I attain by the means illustrated in the accompanying
drawings in which-
Figure 1 represents a plan view of the improved harrow or cultivator.
Figure 3 represents a central longitudinal sectional view of the same.
Figure 2 represents a rear view thereof.
Figure 4, represents a bottom view of a portion of the tongue, showing the connec-
tion by which the gang-beams are secured to the same.
Figure 5 represents a side elevation of the rear portion of the tongue and the
standard carrying a ball or sphere against which the adjacent ends of the gang shafts
or axles abut.
Figure 6 represents a partial sectional view taken on the line y y of Figure 5.
Figure 7 represents.a vertical sectional view of one of the gang-standards and the
divided axle box connected thereto.
Figure 8, a perspective view of the inner end of one of the gang beams.
Figure 9 and 10 detail views of a revolving disk and its hanger, to be used in lieu
of the sphere B, if so desired.
Figure 11 a perspective view of the yoke lever R which embraces the pole.
Figure 12 a detail view of one of the spiral disks.
Referring to the drawings, the letter A indicates the tongue of the apparatus, having
at its rear end a cross-beam B, extending to each side.
The letters CC indicate the gang-beams which have bolted to their adjacent ends
the curved lugs D, which are slotted as shown in Figure 2 of the drawings, for the
purpose hereinafter explained.
To the lower side of the tongue near the rear, are bolted two hangers E, F, having
bearings for a bolt, G, which is fastened in the hanger E by means of a
spring, a, or other fastening device, to the projecting end of the bolt are
secured the slotted ends of the lugs D, the bolt passing through the slots in the lugs,
Гр... 011

page_text: which are confined on the bolt by means of a nut or head, I³. Between the lugs and
on the outside of the outer lug are located beveled washers K, which permit the lugs
and the attached beams to swing slightly, so that their angular adjustment may be
readily effected, as more fully hereinafter explained.
To the lower sides of the beams C, are secured the hangers or dependent standards L,
which are provided with semi-circular recesses at their lower ends, in which are seated
the journal boxes M of the axles or shafts.
The said boxes consist of divided collars, which are provided with confining-ribs on
the outside, and are held in their seats by means of clips N, passing through suitable
transverse apertures in the standards or hangers, and are fastened therein by means of
screw-nuts secured to their projected ends. The lower ends of the standards are also
provided with eyes or loops, to which the drag-bars P P are attached at their rear
ends. The inner drag-bars at their forward end are pivoted to the tongue and the
forward ends of the outer drag-bars are pivotally attached by means of removable
eye-bolts 61, to the lower ends of the yoke lever R, the upper end of which are con-
nected by means of the link S to a hand lever, T, fulcrumed to the tongue.
hand lever is provided with a latch-bolt U, the lower ends of which engages the
teeth of a segment standard, V, secured to the tongue, the bolt being operated by a
small lever W, to which it is connected by a link X.
The said
By means of the above mentioned levers the outer drag-bars may be operated to
set the gang-beams at any desired angle and them in position when so set.
To the lower side of the tongue is bolted a hanger A, which extend down between
the two gang-axles, the said hanger being provided at its lower end with a semicircular
seat for a ball or sphere B¹, which is confined in place by a correspondingly shaped
seat in a plate, C, which is bolted to the said hanger, as shown in Figure 2 and 5 of
the drawings. The adjacent ends of the gang-axles or shafts are rounded as shown in
Figure 2, and bear against the said ball or sphere, which is free to rotate and takes up
the end-thrust of said axles or shafts with a minimum amount of friction. To the
inner ends of the said axles or shafts are secured the disks or concave-convex wheels D¹,
which serve to plow or break up the ridge which would be otherwise left in the field
by the respective gang disks. The gang beams are connected to the outer ends of the
cross-beam B, by means of the loops E¹ F¹, and the gang axles carry a series of
spiral cultivator disks G', against which bear a series of curved spring-actuade
scrapers H¹. The disks, each, consists of a circular orifice, and from this orifice to
the outer edge the metal is separated and the disk is then given the form of a
. spiral.
The disks are clamped between spools upon the gang-axles these spools having
therein adjacent faces spirally formed, to conform to the shape of the disks.
If desired a curved spring tooth I (shown in figure 3) may be employed to
further remove the ridge left by the two gangs of disks.
Instead of the revolving sphere B¹ I may employ the revolving disk P" (shown
in Fig. 9 and 10) to receive the end thrusts of the gangs.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1st. The gang-axles provided with the spiral cutters.
2nd. The gang axles provided with spiral cutters G¹ and the plain disks D¹ at
the inner ends.
3rd. The combination with the spiral cutters, of the spring actuated curved
scrappers H¹.
4th. The combination with the gangs of the interposed revolving ball B¹ or
wheel P, to receive the end thrust of the gangs.
5th. The combination of the tongue A provided with a bolt G, of the gang-
beams provided with the slotted lugs D.
6th. The beams B, provided with loops F combined with the beams C provided
with loops E¹.

page_text: 7th. The two gangs and tongue in combination with the spring tooth L.
8th. The yoke-lever R, provided with removable eye-bolts 6 in combination
with shifting rods P.
Dated this 9th dox of Santambar 1880
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.