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Патент USA US2116823

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May 10, 1938.
J, BLEwET-r
‘2,116,823
CLOSURE FOR COTTON GIN ROLL BOXES
Filed Sept. 16, 1935
‘
2 Sheets-Sheet l
May 10,
J’ BLEWETT
'
2,116,823
CLOSURE FOR COTTON GIN ROLL BOXES‘
Filed Sept. 16, 1955
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2 Sheets-Sheet 2
Patented May 10,‘ 1938
2,116,823
UNITED'STATES PATENT ‘ OFFICE ,
‘ ‘ v John Blewett, Dallas, Tex.,‘assiznor to The Mur
ray Company, Dallas, Tex, a corporation of
Texas
Application September 16, ‘1935,‘Serial No. 40.703‘
‘
_
'lClaimsh
(CL 19-55)‘
‘
‘
‘
which an e‘xam‘ple‘of “the ‘invention is shown,
This invention relates to new and‘ useful im
1 provements in closures ‘for cotton gin‘ roll boxes.
- One object of the‘ invention is to provide an‘
improved closure for the roll box of a cotton sin
5 which is arranged to permit ready access to the
interior of the‘ box when it is necessary‘ to clean
and wherein:
.
‘
,
‘
1
‘Figure 1 is a, ‘transverse, vertical sectional view
of a cotton ‘gin, having a‘closure constructed in
accordance with the‘ invention, closing‘ its roll 5
box,
,
,
,
‘ 1
‘Figure 2 is a longitudinal, vertical sectional
An important object of the invention isto pro
vide an improved closure for the‘front of the ‘roll
l0 box of a cotton gin which is arranged to be
hinged at either its upper or lower end whereby
it may be swung either from its upper or lower
end, and also being so constructed that“; may be‘
completely removed to open the entire front of
view, taken on the line 2-2 of Figure l,
‘
Figure-3151s an isometric view of one end of the
the ginning ribs,‘ or for any other reason.‘ ,
the roll box.
,
x
closure,“
‘
‘
, ‘
‘
,
“
“
‘
y
10
Figure 4 is an enlargeddetail view of (‘meet
the retractible pins and its, mounting,
,
“Figure? ‘is an isometricvview of one of the pins,
and"
“
Figure 6 is a ‘transverse, vertical sectional, view
‘
‘ Still another‘object of .‘the invention is to‘ pro
of the closure ‘showing the same swung ‘downm
‘vide an improved closurefor the frontoi a roll‘ ‘ \va‘r‘dly, the other positions of said ‘closure being
box which is supported by retractible pins at its show‘nin dotted lines. ‘
‘ r ‘
upper andlower ends, whereby whenthe upper ‘ , ‘In‘th‘e drawings, the numeral l0 designates an
pins are retracted‘ the closure may be swung ordinary cotton "gin which may be of the usual 20
downwardly with the lower pins‘as a pivot, and ‘
when the lower pins are retracted, said closure
maybe swung upwardly, the upper pins serving‘
as a pivot, the location of the pins being such'that‘
25
a single operator can operate the closure; the
retraction of both upper and lower pins permit-l
Still another object of the invention is to pro
vide a swinging closure forlthe front of a roll
30 box which is constructed so that when opened
the roll within the box may be retained, the hinge
‘ of said closure beingsuch “that the seed‘ within
the box can not enter beneath the open closure‘
to prevent complete closing ofwthe“ same. ‘ ,
35
C
A further object‘of the ‘invention 'is to pro-j
vide an improved closure for‘ the rollgbox of a
cotton‘ gin having retractible‘ means ‘for holding
the ‘same in a closed position, said retractible
means being arranged‘ to engage the ‘gin frame,
40 when the lower end of the closure has be‘en‘swung
to an open position, said means thereby holding
said closure in such open position.“ '
c
l3 a‘nd‘huller ribs“ II.‘ The roll box A is formed ~
above the ginning saws and ribs in the usual
way. ‘ Theifront of the gin breast II is removable‘
and is generally‘known‘as the ‘outer front, ‘ ‘The
‘ front’oi the roll‘box is usually closed'by an in-‘
.‘ ‘ ting the entire closure to be readily removed.
'
construction‘. The‘ gin has the usual outer‘ piv-‘
oted gin breast ll‘, ginning saw‘s l2, ginning ribs
ner fron't'which‘ is‘ removable also so as to permit
access toth‘e interior of the roll box. ‘
‘
The removal of ‘the outer and inner fronts en- ,
tailsconsiderable time in loosening bolts and nuts
to‘permlt such‘remov‘al. Many times, it is only
necessary to reach within the roll box to remedy
theparticular trouble and therefore, the necessity
of ‘the removal‘ of ‘the inner front“ results in a
waste of time.
,
‘
i‘
'
In ‘carrying outv the invention,‘ the usual front
which‘closes. the roll box A is eliminated, and a‘
curvedrlclosure I5 is provided. This ‘closurexex
tends transversely within the gin breast between
the side walls“ l6 thereof, and, as clearly shown‘
in Figures 2 and 3, is ‘formed‘of a pair‘ of curved, , ‘ ‘
c
?anged end members I1, which are‘ constructed ‘
of metal or other ‘suitable material. The‘ ‘end
mounted on retractible ‘pins engaging the‘ gin" members are“ preferably cast but ‘may be con
A still further object of the invention is to pro-,
vide an improved closure for‘ a roll box which‘ is
4
frame, whereby all bolts, nuts and other holding
‘ means which necessitate the use of tools are ‘elim
‘
‘ A curved plate It extends between the members
and has its upper and lower ends bent upon it
self‘ to form elongated‘ channels l9 at the upper
A construction designed to carry out the in-, and lower ends of said plate. “A complementary 50
inated. ‘
to
structedvin‘ any desired way.
,
vention will be hereinafter described, together
outer plate 20 is welded or otherwise‘secured to ‘
‘with other features oi‘the invention.‘
the plate “and overlies the‘ same. As clearly
\
,
‘
The invention will be more readily understood
from a reading of the following speci?cation and
55 by reference to the accompanying drawings,‘ in
shown in ‘Figure 3,‘ the“ outer plate serves to res
tain the ends of the inner plate in their bent posi- ‘
tion. Both ;plates ‘are “ then secured to the end‘ 55
2
9,1 16,838
members ll by rivets, or-other means, whereby
an elongated curved closure for the roll box A is
formed. If desired, the outer Plate 22 may be
bent upwardly to form a longitudinal rib 2|
throughout its length,-whereby rigidity will be
added to the structure.
.
For mounting the closure between the side
walls iii of the gin breast ll, an elongated, tu
bular casing 22 is inserted in the upper channel
10 19 of the sheet i8. The ends of the casing ter
minate adjacent the side ?anges ll’ of the end
members ll of the closure (Figure 2), and the
casing is suitably fastened in the channel. It
may have a tight fit and be driven therein.
A plunger 23 is mounted at each end of the
casing and is slidable therein. The outer end of
each plunger is formed with a reduced pin 24,
whereby an annular shoulder 25 is provided. The
reduced pin extends from the end of the casing
20 and passes through an opening 28 (Figure 4) in
the side ?ange ll’ of the end member II. The
extreme outer end of said pin is arranged to en
gage in an opening 21 formed in the side wall I‘
15
of the gin breast.
25
"
'
_
The pin is normally held in engagement with
said opening, with the annular shoulder 28 about
the inner side of the ?ange l'l' by a coiled spring
28 which is con?ned within the casing 22 between
It will-be seen that the closure is mounted be
tween the side walls of the gin breast to close the
front 01' the roll box A. With the upper plungers
23 and the lower plunger 23' in their outer posi
tions, the pins 24 and 24' engage their respective
openings 21 and 21’ in the side walls l6. Assum
ing the thumb bolts 30 and 30' to be engaged in
the o?set notches, it will be seen that the closure
is securely locked in position.
In ginning wet cotton, or under other condi
tions, the) girming ribs l3 may become clogged
and it is necessary to reach within the roll box .
A to clean said ribs. It is only necessary, after
the outer front of the breast I I has been removed,
for the operator to grasp the thumb bolts 22, one 15
in each hand, and retract the upper plunger 23
to disengage the pins 24 from the openings 2'I.~
The lower pins 24' are still in engagement with
their respective openings, and the closure may
then be swung to the position shown in dotted
lines in Fig.1 and in full lines in Figure 6. It is
noted that the pins 24' serve as the pivot on
which said closure swings.
The operator may then move the entire roll
within the box A forwardly onto the inner side
01' the closure and the ginning ribs and saws are
then readily accessible.
When it is desired to
close the closure, the upper end is swung inward
the inner end of the plunger 23 and a transverse ' ly. Due to the curve of the inner side of said
closure and also to the fact that the closure is
it will be obvious that the springs exert their hinged on the pins, any seed which might have
pressure to hold the plungers in their outer posi
accumulated on the inner face of said closure
tions (Figure 2) with the reduced pins 24 engag
while the same was open, will fall from said clo
ing in the openings 21 in the side walls 01' the gin sure as it moves to a closed position. It is noted
35 breast. The engagement of the annular shoulder
' that there is no possibility of the accumulated seed 36.
30 pin 29 which extends across said casing. _Thus,
25 of each plunger with inner side of the ?ange
ll’ prevents the displacement or said plunger
from the casing. It is noted that when thepins
are within the openings 21, the upper ‘end 01' clo
'40 sure is attached to the breast II.
For locking the pins within the openings, each
‘plunger 23 is provided with a radially extending
interfering with the closing by falling into the
hinge, as is the case in some closures now in use.
The curve of the closure positively guides the seed
back into the roll box.‘
In some cases, it is desirable to swing the clo 40
sure upwardly completely out _of.the operator's‘
way so that the interior roll box is easily acces
thumb bolt 30 which projects outwardly and is sible. In such cases the upper plungers 23 re
slidable within a slot 3| (Figure 3) formed in the ‘ main in their outer position so that their‘ pins 24
outer side of the channel IS. The slot is provided
with o?set notches 32 at each end thereof and the
I bolt 30 is so located on the plunger. that when the.
pin 24 is engaging in the opening" 21, said bolt
is opposite the outer notch 32. A slight rotation
of the plunger causes the bolt to enter said notch,
and it will be seen that said plunger cannot be
moved to disengage the pin from the opening 21
until such time as the thumb bolt ismoved from
said
outer notch.
I
.
I
When said bolt is disengaged from the outer
notch, the plunger may then be slid inwardly
under tension of the coiled spring 22, and after
the pin 24 is retracted from the opening 27, the
thumb bolt may be swung into the inner onset
60
notch 32, whereby the plunger may be locked in
. a retracted position.
From the above, it will be seen that the upper
end of the closure is supported in the side walls
of the gin breast II, by the retractible plungers
-65 23. The lower end of said closure is supported by
similar plungers 23' which are mounted in the
ends 01' a casing 22' located within the. lower
' channel l9.
These plungers are provided with
reduced pins 24' which engage openings 21'. in
70 the sidewalls of the gin breast. The construc
tion and operation oi! the lower plungers are ex
actly the same as the upper pins and a detailed
description would merely be repetition. Corre
sponding parts of the lower plungers have been
75 given prime ,numbers.
~
'
remain within their respective opening 2] in the 45
side walls IS.
The lower plungers 23' are re
tracted so that their pins'24' are‘ disengaged vfrom
the openings 21', so that the ‘closure may be swung
upwardly as shown by dotted lines in Figure 6.
If desired, after the lower end of the, closure
has been swung above the top of the side walls
It the plungers can be again moved outwardly’
so that the pins 24' rest upon the top edge oi! said
side walls to prevent downward movement of the
closure until such time as the plungers 23' are 55
again-retracted. It is noted that this action is
automatic if the thumb bolts 30' are not engaged
with the inner oifset notch 32' when‘ the plungers
23' are ?rst retracted to disengage the pins 24'
from the openings 21', for it is obvious that dur
ing the upward swinging, the outer edge of the
12111524’ will ride against the inner side or the.
walls i6, being held so by the coiled springs 28'.
As soon as the pins clear the upper end of said
walls, said spring will immediately move them 65
outwardly.
'
From the above, it will be seen that the closure '
may be either swung upwardly or downwardly
depending on whether the upper or lower pins
are retracted from their respective openings. If 70
the upper pins are retracted, the lower pins form
the hinge, and vice versa. The disengagement
oi’ the pins may be readily accomplished by one
operator who can grasp one of the thumb bolts
in each hand and swing the closure. Hereto 75
3
2,1 16,823
fore, the removal of the front of the roll box
required at least two men. The swinging from
either the top or bottom of the closure permits
ready access to the interior of the roll box A
for any purpose.
_
.
In some cases, it is desirable to entirely remove
the closure, and when this is necessary, both
sets of pins 24 and 24’ are retracted from the
dinally between the end walls of the gin breast
across the front of said roll box to close the
same, a pair of spring-pressed plungers at the
upper opposite corner portions of said closure
member and extending outwardly from the
ends thereof for engaging in openings in said
end walls to support the upper end portions of
the member, similar spring-pressed plungers at
the lower corners of the member for engaging
- openings and the entire closure may be removed.
It is noted that the closure is fastened in place - openings in the walls of said gin breast to sup 10
by the retractible pins which may be easily op
erated by hand. No nuts, bolts. or other'com
paratively permanent means lsemployed. This
port the lower end portions of the member, means
on each plunger for retracting the same to dis
eliminates the use of any kind of tools and saves
a great deal of time and labor on the part of
leasably retaining the plungers in their extended
engage it from its opening, and means for re~
and retracted positions.
‘
4. A closure for the roll box of a cotton gin
It is noted that the particular structure of the ‘ including, a longitudinally extending member ar
ranged to close the forward end of said box,
closure is subject to variation and it is not nec
separate retractible means for supporting the
essary to make the closure of the end members
upper opposite corner portions of said member, 20
20 and plates, but all these parts could, if desired,
separate retractible means for supporting the
‘ be made integral. ,It is further pointed out that
lower opposite corner portions of said member,
the closure may be attached to any ordinary
and means for releasably retaining said retracti
cotton gin having the roll box A above the gin
ble means in either their extended or retracted
ning saws and ribs.
nu
positions.
What I claim and desire to secure by Letters
5.
A
closure
for
the
roll
box
of
a
cotton
gin
Patent is:
1. A closure for the roll box of a cotton gin including, a removable closure member extending
the gin operator.
including, a curved member extending longitu
longitudinally between the end walls of the gin
dinally across the front of'said roll box to close
the same, retractible locking means resiliently
breast across the front of said roll box to close
the same, separate retractible means on said 30
biased toward their locking position carried by
closure member engaging the walls of the gin
breast for‘ pivotally supporting the upper end of
the member, similar retractible means for piv
otally supporting the lower opposite corner por
tions of the member, whereby either ‘the upper
the upper end of the member and engaging the
walls of the ‘gin breast for pivotally supporting
the upper end of the same, and similar retracti
35 ble locking means resiliently biased toward their
locking position for pivotally supporting the
or lower means may be retracted at will to per
lower end of the member, and means independ
mite the closure member to be swung either up
wardly from its lower end or downwardly from
its upper end, and means for releasably retain
ently operable for retracting both the upper and
lower retractible means. whereby the member
40 may be either swung downwardly from its upper
ing said retractible means in either their ex
end or swung upwardly from its‘ lower end, or
may be entirely disengaged from the breast, the
curve of the member being such that when the
upper means has been retracted to permit down
45 ward swinging of the member, the seed within
tended or retracted positions.
6. A closure for the roll box of a cotton gin
including, a removable closure member extend
the roll box is prevented from entering the hinge
o! the member, whereby interference by. the seed
with the closing of said member is eliminated.
2. A closure for the roll box of a cotton gin
including, a curved member extending longitu
dinally across the front of said roll box to close
the same, retractible means carried by the upper
end of the member and engaging the walls of
55
the gin breast for pivotally supporting the upper
end of the same, and similar retractible means
for pivotally supporting‘the lower end of the
member, and means for retracting both the‘upper
and lower retractible means, whereby the mem
60 ber may be either swung downwardly from its
upper end or swung upwardly from its lower
end, or may be entirely disengaged from the
breast, the curve of the member being such that
when the upper means has been retracted to
65 permit downward swinging of the member, the
seed within the roll box is prevented from enter
ing the hinge of the member, whereby interfer
ence by the seed with the closing of said member
is eliminated, the location of the lower retractible
70 means being such that when ‘the member is
swung upwardly, said means will engage the
upper edge of the side walls of the gin breast to
hold said member in an open position.
3. A closure for the roll box of a cotton gin
75 including, a closure member extending longitu~
ing longitudinally between the opposite end walls
of the gin breast across the box to close the
same, and retractible independently operable
locking means mounted on each end corner por
tion of said closure member and resiliently pro
jected into supporting engagement with the con
tiguous end wall portions of the gin breast where 50
by to releasably lock said member in place and
to hingedly support said member near either
longitudinal side when the locking means near
the opposite longitudinal side is retracted from
engagement with the wall portions of the gin
breast.
'
7. A closure for the roll box of a cotton gin
including, a removable closure member extend
ing longitudinally between the opposite end walls 60
of the gin breast across the box to close the
same, and separate retractible ‘and independ
ently operable bolts mounted on the opposite end
corner portions of the closure member and being
‘spring-pressed and normally urged to project
into openings provided therefor in the contigu
ous breast end wall portions whereby said closure
member is releasably locked in place to be re
movable‘ as a unit, at will, and is hingedly sup
ported at its opposite end corner portions at 70
either side when only the bolts at the other side
are retracted from the openings in the contigu
ous wall portions, and reversely when only the
other bolts are retracted.
JOHN BLEWETT.
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