Improvements in Agricultural Drills.
Year: 1895

page_text: Date of Application, 4th June, 1895
Complete Specification Left, 4th Mar., 1896-Accepted, 4th Apr., 1896
Improvements in Agricultural Drills.
I, JAMES PERKINS COULTAS, of Perseverance Iron Works, Spittlegate,
Grantham, Agricultural Engineer, do hereby declare the nature of this invention
to be as follows:--
This invention relates to improved means for adjusting the angle and regulating
the depth of penetration of the coulters or hoes of agricultural drills.
According to this invention, the coulters or hoes, for depositing in the ground
the seed, manure and the like, are attached to levers, each lever being connected
at one end by a nog, socket, or otherwise, with a revolving shaft or shafts which
works in bearings in side brackets or coulter bar stays near the front of the
machine and is raised or lowered by turning a handle which actuates a worm and
worm wheel or worm and rack, whereby all the coulters are caused to work on the
same level and can be set at any angle required for different kinds of soil. The
coulter levers being arranged as above described, instead of hanging loosely as
heretofore, the coulters will all pitch at the same angle and will not be liable to
dip. The depth to which the coulters penetrate the ground is regulated by turning
the said revolving shaft in its bearings.
Dated this 4th day of Lune 1895
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19 Southampton Buildings, Chancery Lane, London, W.C.
Agents for the Applicant.
=
F
I, JAMES PERKINS COULTAS, of Perseverance Iron Works, Spittlegate,
Grantham, Agricultural Engineer, 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 statement:-
This invention relates to improved means for adjusting the angle or pitch and
regulating the depth of penetration of the coulters or hoes of agricultural drills
for depositing in the ground seed, manure and the like.
Heretofore it has been necessary to adjust the angle of each coulter or hoe
separately and the object of the present invention is to provide means whereby
the coulters or hoes may all be set to the required angle simultaneously.
According to my invention, within suitable bearings near the front of the machine
I mount a revolving shaft with which are connected by nogs, sockets or otherwise,
so as to move therewith, the ends of a series of levers, each lever being rigidly
connected with a coulter or hoe. Upon revolving the said shaft in one direction
or the other, the coulters or hoes will be simultaneously raised or lowered by the
said levers, and their pitch or angle thus simultaneously adjusted. The revolution.
of the said shaft may be effected by means of a worm and worm wheel or other
equivalent device. The coulters or hoes being operated as above described will
all work on the same level, pitch at the same angle, and will not be liable to dip.

page_text: The accompanying drawing illustrates in side elevation so much of an agricul-
tural drill constructed according to my invention as is necessary for the clear
understanding of the latter.
⋅
a represents one of the series of coulters or hoes and a 1 is the flexible tube by
which the seed and the like is supplied to the coulter from the hopper a 2 in the
usual manner.
is a lever rigidly connected with the coulter or hoe said lever
being formed with an aperture so as to embrace or surround the upper part
thereof. The end of this lever 6 is secured to the revolving shaft c in any suit-
able manner so as to move therewith. The said shaft c revolves at each end in a
bearing d carried by a bracket e secured to the side frame f of the machine near
the front thereof. g is a worm wheel fixed on the shaft c with which gears the
worm mounted on the spindle i which revolves in the bearings & secured to the
bracket e and in the bearing secured to the frame f near the rear of the machine.
m is a handle by which the spindle i is rotated. It will be understood that each
coulter or hoe a is connected with a similar lever b secured at its end to the
shaft c so as to move therewith. By turning the handle m the shaft c will be
revolved in one direction or the other through the worm and worm wheel 9, and
the coulters or hoes a will thus be simultaneously raised or lowered by the levers b
and their angle or pitch and depth of penetration thereby simultaneously adjusted
and regulated. n is the usual chain by which the coulters or hoes are lifted clear
of the ground when required a chain n being attached to the end of each lever b
and wound upon a roller o.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:―
1. In an agricultural drill, connecting the coulters or hoes by a series of levers
with a shaft revolved by convenient means, whereby the said coulters or hoes may
be all simultaneously adjusted to the desired angle or pitch, substantially as
described.
2. In an agricultural drill, the combination of the coulters or hoes a, the
levers b, the shaft c, the worm wheel g mounted thereon, the spindle i and the
worm wheel carried thereby, the whole constructed, arranged and operating
substantially as and for the purpose described and illustrated.
Dated this 4th day of March 1896
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19 Southampton Buildings, Chancery Lane, London, W.C., Agents.