Improvements in the Construction of Agricultural Drills.
Year: 1893

page_text: Date of Application, 21st Oct., 1893
Comp ete Specification Left, 18th July, 1894-Accepted, 18th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Agricultural Drills.
I THOMAS CHARLES SARGEANT 1, Victoria Promenade, Northampton
Agricultural Engineer, do hereby declare the nature of this invention to be as
follows:-
Part of my invention relates to that type of drill known as steerage drills, that
is to say, drills steered or guided by the drillman in order that the drill may
deviate at the will of the drillman from the course taken by the horses, and is as
follows:-
The pole B. is jointed at its rearward extremity to the pin G. the said pin being
attached to the main frame A. at a point midway between the two main road
wheels L. L.
•
The axle H of the main road wheels L L. is attached to the main frame A, the
said main frame having a rearward extension on each side I, to which is attached a
pin or stud E. Upon the pin or stud E is jointed a bell crank lever D. the said
bell crank lever being connected by a rod C to the pole B. The lever D,
connecting rod C, stud E, and rearward extension I, are in duplicate, one of each
on each side of the drill in order that the drillman may manipulate the steerage
from either side of the drill. The pole B. in its normal position is at right angles
with the main axle H. of the main road wheels L. L. It will therefore be seen
that any movement of the bell crank levers D. D, to the right or left, will cause
the main axle H and main frame A to which the axle H is attached, to radiate on
the pin G, and occupy angles other than right angles to the pole B, thereby
causing the drill to swerve to the right or left as desired. The forward end of the
pole B, which is omitted for convenience, is suspended from the horses' collars in
the usual way, although shafts pivotted to the frame in the manner described may
be used.
In the plan drawing sent herewith, the seed box is omitted, to give a clearer
view of the working of the steerage described.
The drill coulters and seed conductors I construct in the following manner :-
The seed conductors consist of two pieces of seamless steel tube a a Fig. 3 a'a', the
smaller tube being inserted in the larger, & arranged to slide freely in it. The
object of double or telescopic tubes is to admit of the coulters being raised and
lowered. The coulter b into which these pipes deliver their seed has a double inlet,
these inlets uniting in forming a single outlet b, in order that two sets of pipes may
deliver seed or manure into one coulter. A nib d, Fig. 3, Fig. 2 is attached to the
lower end of the lower or larger tube a, u', which fits into a corresponding recess
formed in the upper part of the coulter b. A catch c is jointed above the nib, the
object of which is to prevent the nib being drawn out of the recess. To the
coulter is attached a pin, upon which revolves a detachable circular plate or disc
not shewn. This disc is rotated by contact with the soil.
October 20th 1893.

page_text: Improvements in the Construction of Agricultural Drills.
I, THOMAS CHARLES SARGEANT, of 1 Victoria Promenade, Northampton,
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 :-
My invention relates to certain improvements in the construction of agricultural
drills one part of same relating to the class of drills known as steerage drills, that
is to say, a drill which is steered or guided by the drillmau in order that it may.
deviate from the course taken by the horses.
In the accompanying drawings which illustrate my invention
Fig. 1 is a plan of a metal framed drill constructed according to my invention
the seed box, drills and other parts being omitted.
Fig. 2 is an elevation partly in section of the drill coulters and seed conductors
constructed according to my invention and Figure 3 is a plan of same.
Referring to Fig. 1 it will be seen that the pole B is pivoted at the rear end by
a pin C to the main frame A midway of the wheels D'D the axle E of which is
carried by the frame. On either side of the frame A and at the back of same are
extensions F F to which are pivoted cranks G said cranks having attached to one
of their extremities connecting rods H H which are attached in turn to the pole B
and to their other extremities handle rods J J which carry handles of some suitable
form such as K. In place of the parts being duplicated as shewn they may be
used on one side of the frame only.
It will be seen that any movement of the cranks G to the right or left will
cause the main axle E and main frame A to radiate on the pin C thereby causing
the drill to alter its course as desired.
In place of the pole B shafts pivoted to the frame in a somewhat similar manner
may be employed. The dotted line L indicates a removeable bar which may be
employed for locking the body of the drill to the pole and enabling it to travel
without being steered.
In Figs. 2 and 3 are shown the seed conductors I employ. These consists of
two seamless tubes (which may be of steel) one tube M sliding inside the tube N
so that the coulter O may be raised or lowered. This coulter is formed with a
double inlet to which are connected two conducting pipes N the inlets meeting and
forming a single outlet, the arrangement enabling two sets of pipes to deliver sced
and manure into one coulter. For the purpose of connecting the conducting
tubes N to the coulter O in such manner that they may readily be removed aud
also may be able to be rocked in any direction I secure the ends of the tubes N by
means of a gimbal or universal joint to the coulter the outer ring P of the gimbal
joint carrying trunnions QQ one of which drops into an open lug R on the
coulter O and is held therein by means of a pin S the other trunnion resting in a
bearing T so that upon removing the pin the tube N may be lifted away.
Having now particularly described and ascertained the nature of my said
invention and in what manner. the same is to be performed, declare that what
I claim is :-
1. In an agricultural drill the combination with the main frame of a rearwardly
pivoted pole or shafts, a crank attached to the main frame and a rod connecting
the crank to the pole or shafts substantially as and for the purpose described.
2. In an agricultural drill the combination with the main frame of a rearwardly
pivoted pole or shafts, cranks attached to the main frame at the rear, rods
connecting the cranks with the pole or shafts and guiding means carried by the
cranks substantially as and for the purpose described.

page_text: 3. In an agricultural drill the employment as seed conductors of seamless tubes
one sliding within the other substantially as and for the purpose described.
4. The improvements in agricultural drills substantially as described and
illustrated in Fig. 1 and in Figs. 2 and 3.
Dated the 18th do of Tule 1801
PHILIP M. JUSTICE,
55 and 56, Chancery Lane, London, Chartered Patent Agent,
For the Applicant.