Improvements in or connected with Seed Drills.
Year: 1895

page_text: Date of Application, 21st Oct., 1895
Complete Specification Left, 14th July, 1898-Accepted, 26th Jept., 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Seed Drills.
I, HUGO SCHIMPFF, of 37, Merseburgerstrasse, Hallo, in the German Empire,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the distributers of seed drills.
It has hitherto been necessary with seed drills having feed-barrels revolving
in casings and regulating discs operated by the sowing shaft for the purpose of
varying the quantity of seed delivered, to provide independent discs, which do not
rotate with the said shaft, for the purpose of preventing the seed coming from the
seed box or hopper from falling over the said shaft instead of into the bottom of
the casing.
Now it is the object of the present invention to provide means whereby the said
independent discs may be dispensed with, and to this end I cause the seed to pass
directly into the lower part of the said feed-barrel by means of a fixed partition
attached to the casing and oxtending as far as the boss of the regulating disc.
The device is so constructed that the shaft together with all the discs and feed
barrels can be removed from the machine for the purpose of protecting the same
against rust and to facilitate repairs, after the caps or covers of the shaft bearings
have been opened.
In carrying out my invention I construct the casings, which are screwed to a
plate let in the back of the seed box, in such a manner that the seed from the
said box, is conducted directly to the lower part of the feed barrels. For
this purpose a fixed partition is provided to form one side of the seed inlet
of each casing, the said partition extending as far as the boss of the regulating
disc in the feed barrel. The partition prevents the seed from falling laterally
from the upper part of the seed inlet over the boss and ensures that the same
is conducted to the lower part of the casing. The foed barrel is placed
between the side of the casing carrying the partition and an annular plate
attached to lateral projections on the casing. By this means the feed barrel is
prevented from being moved laterally when the shaft and the discs are displaced.
The discs which are contained in the feed barrels are preferably cast in one
piece with the bosses, which latter are fixed in position on the square portions of
the shaft by means of set-screws.
To enable the shaft with the feed barrels, the discs, and the pinion and eccentric
attached to the shaft to be lifted out all together from the machine when repairs
are necessary, I form the shaft bearings in halves.
The bosses of the discs are supported in open bearings so that the said bosses
together with the shaft and the feed barrels can be drawn out after the covers
thereof have been removed and the end bearings have been opened. Only the
balf bearings of three or four of the casings of a seed drill are provided with
covers, the remaining casings having open bearings.
When therefore the sowing season is finished, the shaft with the feed barrels and
discs can be easily drawn out from the machine for the purpose of preventing them
from rusting and from being otherwise injured.
An arm carrying the intermediate wheel swings on a pivot when a cam having
an eccentrio slot is rotated by means of a lever, link and arm, whereby the pinion

page_text: and the intermediate wheel gearing therewith remain in position when the shaft
and the other parts are removed.
Dated the 21st day of October 1895.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in or connected with Seed Drills.
I, HUGO SCHIMPFF, of 37, Merseburgerstrasse, Halle, in the German Empire,
Engineer, do hereby declare the nature of this invention and in what manner tho
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
This invention relates to improvements in the distributers of seed drills.
It has hitherto been necessary with seed drills having feal-barrels revolving in
casings and regulating discs operated by the sowing shaft for the purpose of
varying the quantity of seed delivered, to provide independent discs, which do not
rotate with the said shalt, for the purpose of preventing the seed coming from the
seed box or hopper from falling over the said shaft instead of into the bottom of
the casing.
Now it is the object of the present invention to provide means whereby the said
independent discs may be dispensed with, and to this end I cause the seed to pass
directly into the lower part of the said feed-barrel by means of a fixed partition
attached to the casing and extending as far as the boss of the regulating diso.
The device is so constructed that the shaft together with all the discs and feed
barrels can be removed from the machine for the purpose of protecting the same
against rust and to facilitate repairs, after the caps or covers of the shaft bearings
have been opened.
To enable my invention to be fully understood I will describe it by reference to
the accompanying drawings, in which :-
Figure 1 is a vertical section through the feed casing of a seed drill constructed
according to my invention:
•
Figure 2 is a side elevation of the regulating disc:
Figure 3 is a front elevation of the same:
Figure 4 is a view of the back of the easing drawn to a larger scale :
Figure 5 is a sectional elevation of the same seen from the right side :
Figure 6 is a vertical section on the line -y of Figure 4:
Fi igure 5B is a perspective view of the casing:
Figure 6 is a section shewing one of the bearings of the sowing shaft:
Figure 7 is an end view of the seed box shewing the arrangement for putting
the shaft in and out of gear:
Figure 8 is a side view of one of the shaft bearings:
Figure 9 is a section similar to Figure 6 shewing the other bearing of the
Bowing shaft.
The casings G, which are screwed to a plate let in the back of the seed box,
are so constructed that the seed from the said box is conducted directly to the
lower part of the feed barrels b. For this purpose a fixed partition wis provided
to formi one side of the seed inlet a of each casing, the said partition w extending
as far as the boss of the regulating disc f in the feed barrel b. The partition to
prevents the seed from falling laterally from the upper part of the seed inlet a
over the boss and ensures that the same is conducted to the lower part of the
casing. The feed barrel is placed between the side of the casing carrying the
partition w and an annular plater attached to lateral projections on the casing.

page_text: By this means the feed barrel is prevented from being moved laterally when the
Bowing shaft c and the discs are displaced.
The discs which are contained in the feed barrels b are preferably cast in one-
piece with the bosses n, as shewn in Figures 1 and 2, which latter are fixed in
position on the square portions of the shaft c by means of set screws 1. When the
Bowing shaft c rotates with the discs the movement is communicated to the seed in
the casings by means of the bosses and this movement assists in properly conducting
the seed.
To enable the shaft c with the end bush z, the feed barrels, the disos, and the
pinion and eccentric attached to the shaft to be lifted out all together from the
ninchine when repairs are necessary, I form the shaft bearings 6 nad 7 in halves as.
shewn in Figures 7, 8 and 9.
The bosses n of the disus fare supported in open bearings w' (Figure 4) so that
the said bosses together with the shaft a and the feed barrel b can be drawn out
after the covers 10 thereof have becu removed and the end bearings 6 and 7 have-
been opened. Only the half bearings of three or four of the casings of a seed drill
are provided with covers, the remaining casings having open bearings.
When therefore the sowing season is finished, the shaft c with the feed barrels b
and discs can be easily drawn out from the machine for the purpose of preventing.
them from rusting and from being otherwise damaged.
An arm o carrying the intermediate wheel i swings on a pivot p when a cam 14
having an eccentric alot is rotated by means of a lever 11, link 12 aud arm 18,
whereby the intermediate wheel i is disengaged from the pinion & and remains in
position when the shaft c and the other parts are removed.
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:-
In seed drills providing the open side of each seed inlet casing next the feed
barrel at its rear corner with a partition and forming its bearing for the sowing
shaft in such a manner that the boss of the regulating disc which slides in the feed
barrel runs freely in the same when the sowing shaft rotates whilst the movement
of the latter is communicated by the boss to the seeds which are guided by the
partition, the said shaft being supported in bearings (some of which are open and
some provided with covers) in such a manner that it can be removed with its
gearing substantially as, and for the purpose, hereinbefore described.
HIP ONI
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agauts for the Applicant.