mprovements in Machines for De-linting Cotton Seed and the like.
Year: 1891

page_text: Date of Application. 22nd D.c., 1891-Accepted, 6th Feb., 1892
COMPLETE SPECIFICATION.
mprovements in Machines for De-linting Cotton Seed and the like.
I, HERBERT JOHN HADDAN, of the firm of Herbert & Co., Patent Agents, of
8, Buckingham Street, Strand, W.C., London, Civil Engineer, do hereby
eclare the nature of this invention, a communication to me from abroad by
George Harrison Arthur, of 114 Randolph Street, in the City of Chicago,
County of Cook and State of Illinois, United States of America, Attorney-at-Law,
nd in what manner the same is to be performed to be particularly described
nd ascertained in and by the following statement :-
This invention relates to that type of apparatus employed for de-linting cotton
seed, and other like purposes, and in which a vertically arranged series of circular
saw blades are employed in connection with a suitable hopper or hoppers, containing
the seed, or other material to be de-linted or otherwise acted upon.
Various objects of the present invention are as follows:
First. A very compact arrangement of the operating parts, combined with a large
de-linting capacity, so as to attain great economy in floor space occupied.
Second. The avoidance of undue friction upon the cotton seed, etc., that is
undergoing treatment and which in former constructions was caused by the use of
a hopper made stationary with relation to the series of de-linting saws.
Third. A progressive decrease in the duration of the treatment that the seeds, etc.,
receive, as they pass through the apparatus, and as the cleaning or de-linting of the
same progresses.
Fourth. Means for separating, by gravity, the particles of lint etc., from the
seeds etc., at different vertical points of treatment, and the discharge of the same
into the path of a passing air current by which said lint, etc., is removed from
the apparatus.
Fifth. An automatically acting means for imparting a relatively slower motion
to the seed containing hopper or hoppers, than that imparted to the saws, and in
the same direction; and,
Sixth. Means to admit of the ready removal of the saws from the machine for
the purpose of resharpening, etc.
My invention consists in the construction of parts, and their combinations and
arrangements, substantially as hereinafter more particularly set forth and claimed.
In the accompanying drawings illustrating my invention-
Figure 1, is a central sectional view with parts shown in elevation;
Figure 2, a horizontal section at line -;
Figure 3, an enlarged detail elevation of a pair of de-linting saws, arranged
according to my present invention;
Figure 4, an enlarged detail plan of the same;
Figure 5, a detail plan view of the upper journal box of saw shaft.
Similar numerals of reference indicate like parts in the several views.
Referring to the drawings, 1, represents the vertical posts or uprights of the
machine, attached to the floor base 2, and having at top an arched formation 3, the
centre of which carries or forms the upper journal box 4, for the vertically arranged
saw shaft 5, which at its lower end is supported in a suitable step or box 6, on the
base 2, of the machine.
7, is the driving pulley of the saw shaft preferably arranged adjacent to the
hase of the machine, as shown.
In the present invention a very important feature is, the arrangement of the
series of circular saws 3, that go to make up the toothed cylinder formation of
the machine, closely together with teeth arranged alternately out of line, or in a
staggered condition. As thus constructed the effective working surface of the saw

page_text: formation is very materially increased, and the capacity of the same for doing work
within a limited space, vastly augmented.
The above described saw formation, can be readily adopted in any of the various
forms of vertical axis de-linting and other machines, with but very slight if any
modification of the said machines, so as to increase their working capacity, and it is
within the scope of this part of my present invention to so use and apply my
improved saw or toothed cylinder formation. The form of the saw teeth may be
of any usual and approved form heretofore used in cotton sced de-linting and other
analogous machines.
In the con-truction shown in the drawing the series of saws are separated by
washers 9, into a series of vertical tiers, each of which is provided with its individual
hopper, for holding a quantity of the seed, etc., while the same is undergoing
treatment from the saws.
The hoppers 10, are of a cylindrical form axially arranged and surrounding the
cylindrical saw formation, to form an annular seed holding chamber 11, the inner
wall of which is formed by said saws.
In my preferred construction, there will be a vertically arranged series of the
hoppers 10, corresponding to the vertical tier of saw cylinders, which series of
hoppers will be made of a progressively decreasing height in their vertical arrange-
ment as shown in Figure 1, so that the body of seed, etc., in the gradual act of
being de-linted, or otherwise treated, will be exposed to a correspondingly decreased
saw or de-linting treatment in its passage through each succeeding hopper, the
seed taking a progressively increasing speed down through the successive hoppers,
in relative relation with the progressive removal of the lint therefrom.
With this construction of the seed holding hopper the particles of lint, removed,
will still be among the seeds and in the movement of the same will gradually work
by gravity to the top thereof from which it is removed to a point outside the
machine by a passing current of air, as hereinafter more fully set forth.
The lower ends of the hoppers 10, are open, so as to discharge the seed, etc., into
annular pans or bottoms 12, arranged a short distance below said hoppers, and
having upwardly extending outer marginal flanges 13, over which the seed etc.,
flows in its downward movement into flaring or funnel shaped top of the next
adjacent seed hopper below, as clearly indicated in Figure 1; the inner annular
edges of the pans 12, project into the space between the tiers of saws, so as to
confine the seed etc., and prevent an escape of the same in such direction.
14, are a series of apertures or perforations in the annular bottom of the pans 12,
and 15 are a series of similar perforations in the inclined portion of the funnel
shaped tops of the seed hoppers 10, the purpose of which is to admit of the passage
upward through the mass of seeds, etc., of a vertically ascending current of air to
assist in the removal of lint particles, etc., after they have been separated from the
seeds by the action of the saws.
16, is a chute for feeding the seed, etc., to be treated into the upper one of the
series of seed hoppers 10.
The series of hoppers 10, and bottom pans 12, are united together by vertically
arranged radial webs 17, as shown, and are made of a halved, or other equivalent
divisional construction, so as to render their ready detachment and removal from
around the saw formation both easy and convenient, the radial webs 17, affording a
convenient means for bolting the sections of the hopper together in refitting the
machine.
The seed carrying hoppers 10 and pans 12, are arranged to move in the same
direction as the saw cylinders, and in many instances, the friction of the bottoms of
the pans 12, upon the top of the different tiers of saws, may be relied upon to
impart the desired movement to the said hoppers and pans, such movement will be
comparatively slower than that of the saws, owing to the necessity of overcoming
the inertia etc., of the hoppers, and the load of seed carried thereby.
For general use I prefer, however, to employ positive means for attaining the
relative speed between the seed carrying hoppers and the saws; in this:

page_text: 18, is an axially arranged rim gear, on the under side of the lowermost pangiz,
earing with and receiving motion from an idler gear 18, journalled in an arm 19,
E the main frame 1, and receiving motion in turn through idler shaft 20 and
ear 21, from a pinion 22, on the saw shaft 5, as clearly illustrated in Figure 1;
be relative sizes of the different gears being proportioned with relation to each
ther, so as to obtain the required speed for the seed holding hoppers. I do not
owever, limit this part of my invention to a hopper moving in unison with a saw
ylinder, as a stationary annular hopper may be used with good results, in
onnection with other improved features and this without departing from the spirit
f my invention.
23, is the outer casing or housing of the apparatus, secured to the main frame,
nd entirely enclosing the operating parts, so as to constitute an annular vertical
ir trunk around the seed hoppers, etc., through which a vertically ascending current
of air is caused to pass to carry off the lint, etc., either by a blast of air from a
suitable pressure blower introduced at the bottom of the housing through an air
nlet 24, or by means of a suction fan connected to a suitable cduction pipe 25, at
the top of said housing, the blast or suction arrangements being of any suitable or
approved construction.
The housing or casing 23, is preferably formed in sections that are bolted in
place to the uprights or posts 1, of the machine, so as to be readily detachable, in
taking the machine apart for sharpening the saws, and the lower end of the
housing is of an inturned formation to constitute an annular receiving chamber 20,
for the seed, etc., as it flows or discharges from the lowermost pan 12, of the seed
holders or hoppers.
The bottom 27, of this chamber is made of a spiral or circularly inclined
formation, so as to discharge the stripped or de-linted cotton seed towards the outlet
chute 28 at the lower end of the apparatus.
The under side of the housing is closed by the aforesaid inturned formation 26,
of its bottom edge, in connection with the gear supporting arm 19, the centre of
which is in the form of a circular web that fits the inner diameter of the seed
receiving chamber 26, as clearly illustrated in Figure 1.
I am aware that it is quite common to place saws on a shaft with the teeth of
the adjoining saws out of line with each other, but in all such former constructions
the individual saws were separated from each other by collars or washers, 1
therefore make no claim to such features of construction broadly.
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. A toothed cylinder for cotton seed de-linting and like machines, consisting of
a shaft, series of circular saw blades arranged directly in contact side by side upon
said shaft, with the teeth of each alternate saw arranged out of line or in a staggered
condition, substantially as set forth.
2. A toothed cylinder for cotton seed de-linting and like machines, consisting of
a shaft, a series of circular saw blades arranged directly in contact side by side
upon said shaft, in a series of vertical tiers, with the teeth of each alternate saw
arranged out of line or in a staggered condition, substantially as set forth.
3. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, of a seed containing hopper made of an annular
form, and adapted to turn in the same direction as the saw cylinder, substantially
as set forth.
4. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, of a seed containing hopper, made of an annular
form, and geared to the supporting shaft of the saws, so as to have a positive
rotation around the saw cylinder, substantially as set forth.
5. In a machine for de-linting cotton seed and like uses, the combination with a

page_text: vertically arranged saw cylinder, composed of vertical tiers of saws, of a series of
independent annular shaped seed containing hoppers, surrounding the saw cylinder,
substantially as set forth.
6. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, composed of vertical tiers of saws, of a series of
independent annular shaped seed containing hoppers, having a progressively
increasing height from the top to the bottom of the machine, substantially as
set forth.
7. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, composed of vertical tiers of saws, of a series of
independent annular shaped seed containing hoppers, the sides of which are provided
with air apertures or perforations, substantially as set forth.
8. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, composed of vertical tiers of saws, of a series of
annular shaped seed containing hoppers, and annular pans or trays forming the
bottom thereof, substantially as set forth.
9. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, composed of vertical tiers of saws, of a series of
annular shaped seed containing hoppers, and annular pans or trays forming the
bottom thereof, and having outer upturned marginal flanges, substantially as set
forth.
10. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, composed of vertical tiers of saws, of a series
of annular shaped seed containing hoppers, and annular pans or trays forming the
bottom thereof, and having outer upturned marginal flanges, and a plain inner
concentric edge adapted to fit within the space left between the tiers of saws,
substantially as set forth.
11. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, composed of vertical tiers of saws, of a series of
annular shaped seed containing hoppers, and annular pans or trays forming the
bottom thereof, the sides of the hoppers and bottom of the pans being formed
with perforatious, substantially as set forth.
12. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, composed of vertical tiers of saws, of a series of
annular shaped seed containing hoppers, and annular pans or trays forming the
bottom thereof, the hoppers and pans being united together by vertically arranged
radial webs, substantially as set forth.
13. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, composed of vertical tiers of saws, of a series of
annular shaped seed containing hoppers, and annular pans or trays forming the
bottom thereof, and hoppers and pans being united together by vertically arranged
radial webs, and made in vertical sections, so as to be readily detachable,
substantially as set forth.
14. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, of a seed containing hopper, made of annular
form, and a separate and independent stationary casing or housing enclosing the
same, and constituting an air trunk therefor, substantially as set forth.
15. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, of a seed containing hopper made of annular
form, and a separate and independent stationary casing or housing formed in
sections and bolted to the main frame, so as to be readily detachable, substantially
as set forth.
16. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, of a seed containing hopper made of an annular
form, and a casing or housing formed with an annular seed receiver at its lower
end, substantially as set forth.

page_text: 17. In a machine for de-linting cotton seed and like uses, the combination with a
vertically arranged saw cylinder, of a seed containing hopper made of an annular
form, and a casing or housing formed with an annular seed receiver at its lower
end, the bottom of said chamber being of a circularly inclined form, substantially
as set forth.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents for the Applicant.