Year: 1898

page_text: I, CAMPBELL THOMPSON SETTLE, of San José, California, U.S.A., Inventor, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to provide a harrow which can be conveniently used
between rows of trees, and be capable of extension to enable it to operate close to the
rows on each side, without injury to the projecting branches; the harrow being then
readjusted to complete its operation in the central portion of the ground, between the
trees, by going over it again.
The harrow comprises a frame, conveniently constructed of bars, arranged in a
triangular form, with the draft pole extending through the apex and a point midway
the length of the base of the triangle. The driver's seat is supported on the rear part
of the draft pole.
An
The bar, forming the base of the triangular frame, is fitted with parallel slidable
extensions at both ends, and adjustable by means of set-screws or the like.
indented U-shaped bracket fits over the upper edge and sides of each of the extension
bars, and is capable of being adjusted thereon at any angle by means of set-screws or
other suitable means. A forwardly projecting lug on the bracket enables it to be
pivoted to short beams, normally arranged parallel to the extension bars, and carrying
the discs of the harrow, which are journalled in hangers on the beams.
By means of the adjustment of the brackets, as aforedescribed, and the pivoting of
the beams thereto, the discs can be set to cut at any angle, either vertically or hori-
zontally.
The beams may be conveniently adjusted, horizontally, at any angle, by means of
rods, attached thereto, and connecting them with a crank and shaft or shafts journalled
in bearings upon a platform on the frame. The shaft or shafts are capable of being
rocked by means of a hand-lever or levers and segment rack.
Dated this 7th day of October 1898.
P. R. J. WILLIS,
Agent for Applicant.
Improvements in Reversible Disc Harrows.
I, CAMPBELL THOMPSON SETTLE, of San José, California, U.S.A., Inventor, do hereby
declare the nature of this invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following state-
ment:-
My invention relates to improvements in that class of land cultivating apparatus

page_text: Fig. 3 is a one-half rear elevation.
Fig. 4 is a plan shewing the off and near side set of discs adjusted closer toward
the centre of the harrow.
Fig. 5 is a plan shewing a modification of the shaft O.
The object of the invention is to especially provide a machine which can be used
between rows of trees and so extended as to operate close to the rows upon each side
without danger of breaking the projecting branches, and the same apparatus can
then be readjusted, so as to complete its operation on the central portion of the
ground by a second operation.
A is the main frame or bed, having a pole B and a driver's seat C supported there-
from. Across the rear end of the bed A is a transverse beam D, which forms the
support for the discs E and the extension bars F, by which they are carried. The
discs E are, as here shewn, fixed in groups of any suitable number, as four, which I
have here shewn on shaft G. The shaft is supported from the lower ends of
standards H, these standards extending upwards into the channel iron beam I. On
the top of this beam is fixed the vertical pivot-pin J, which is turnable in a corre-
sponding vertical box K. This box has at one side a channelled portion, as shewn
at K, which fits adjustably on the extension-bar F, the slotted or channelled
portion K' fitting over the bar and being adjustable thereon, so as to tilt the discs E
outwardly or inwardly in vertical plane. This adjustment is effected by screws N,
which raise or lower either end of the extension K₁ of the box K, and they are after-
wards locked in place by locking bolts and nuts M. It is also desirable to turn the
discs and their shaft about the vertical axis J so that they are made to cut more or
less from the land, and in order to effect this adjustment I have shewn the shaft or
shafts O journalled upon the bed A, having crank arins 0¹ at the ends. These crank
arms are connected by rods P with the adjacent ends of the beams I from which the
discs are supported, and from which the vertical swivel or pivot pins J extend.
will thus be seen that by the turning of the shaft O the cranks 01 will act through
the connecting rods P to turn the beams I about their vertical pins or axis, and they
I will thus be adjusted to cut at any desired angle.
It
The shaft O has a lever handle Q extending upwardly and backwardly, and this has
the customary latch adapted to engage with notches in the rack R so as to hold the
lever Q and with it the shaft O at any desired point of adjustment. This construction
is employed when both sets of discs E are to be adjusted simultaneously; but if it is
desirable to adjust one set independently of the other the shaft O may be made in
two separate sections, each one having its own operating lever and each one
controlling the discs at one end of the apparatus.
The extension bar F is movable on the transverse bar D, so as to set the discs E at
any desired distance from the central line of travel.
In my present illustration I have shewn the apparatus as designed for operating
on the ground between rows of trees which are somewhat widely separated, and it
being difficult to employ the discs so as to operate at one time the whole distance
between the rows of trees I have designed these extensions, so that the two sets of
discs are carried at the extreme ends of the extension-bars, so that they will operate
on the ground close up to the bodies of the trees and beneath the branches without
in any way damaging the latter. After completing this work the extension bars may
be removed, if desired, and the journal boxes K, K¹ may be fixed upon the bar D, so
as to run closely together at the centre of the machine, and the intermediate surface
can then be operated upon by again going over the ground with the machine.

page_text: My apparatus is exceedingly convenient for the purposes designed.
Connections P¹ for the rods P are made at each end of the rods I, so that by
disengaging the rods the beams and discs may be reversed end for end.
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) In a disc harrow, a main frame, supplemental extension bars adjustably
attached transversely thereto, vertical boxes adjustably fixed to the ends of the
extension-frame, revoluble discs mounted in groups upon axles, a bar having standards,
to the lower ends of which the axles are journalled, a vertical central swivel-post in
each vertical box about which the bar and discs are turnable, a horizontal shaft
journalled transversely upon the bed of the machine, crank-arms at the ends of the
shafts and rods connecting the crank-arms with the ends of the swivel beam, and an
actuating lever and pawl and rack mechanism whereby the shaft may be turned and
locked at any desired point.
(2) In a disc harrow, a main frame, transverse extension-bars adjustable outwardly
from the centre of the main frame, vertical boxes adjustably fixed to the ends of the
extension-frame and adapted to be tilted from side to side thereon, beams having
vertical pivots turnable in said boxes and standards projecting downwardly from said
beams in which the shafts of the disc harrows, mounted in groups, are journalled.
(3) In a disc harrow, a main frame, transverse extension bars adjustable outwardly
from the centre of the main frame, vertical boxes adjustably fixed to the ends of the
extension frame, beams having vertical pivots turnable in said boxes and standards
projecting downwardly from said beams in which the shafts of the disc harrows,
mounted in groups, are journalled, and mechanism whereby the disc harrows are
turnable about the vertical journal-pins, consisting of one or more shafts. journalled
transversely upon the main frame, with an actuating lever and pawl and rack holding
mechanisin, crank-arms formed upon the shafts and rods adjustably connected with
said cranks and with the adjacent ends of the disc carrying and vertically journalled
frame.
Dated this 4th day of May 1900