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Патент USA US2090543

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I Àug. 17, 1937.
2,090,543
G. H. MCCLINTOCK
POWER LIFT FOR -GIN BREAsTs
Filed Feb. 29, 1936
2 Sheets-Sheet l
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Allgf 17, 1937-
G. H. MccLlNTocK
2,090,543
POWER LIFT FOR GIN BREASTS
Filed Feb. 29, 1956
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2,090,543
Patented Aug. 17, 1937
FÀTENT OFFICE
UNITED STAT
2,090,543
PoWERLIFT Foa GIN BREAST
George H. McClintock, Refugio, Tex.
Application February 29, 1936, Serial No. 66,444
4 Claims. (Cl. 192--139)
This invention relates to gin- breast lifting de
vices, and has for one of its objects the produc
nism A, which power lift mechanism comprises .a
frame H upon'which frame is the main drive `
tion of a power device for automatically lifting
the breast of a cotton gin through the operation
5 of a trigger mechanism, whereby the breast may
be lifted out of a ginning position should the gin
become choked or otherwise fail to properly
function.
A further object of this invention is the produc
10 tion of a simple and eflicient power mechanism
for lifting the breast of a cotton gin and also
automatically applying a brake to the power
mechanism and re-setting the same, whereby the
power mechanism will again be ina position to
l5 lift the breast should the necessity for such
action .again arise.
1 1‘ `
Another object of this invention is the produc
tion of a simple and efficient mechanism- for
lifting the breast of a cotton gin which is so
constituted as to operate'withïfacility in con
junction with the conventional gin structure now
so commonly in use.
‘ '
Other objects and advantages of the present
invention will appear throughout the following
specification and claims.
25
In
the
drawings:
-‘
Y
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> ' a
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shown in Figure 1;
K
` l
Figure 3 is a front end elevation of the power
device, the weight-supporting lever being shown
in section and a portion of the gin being also
shown;
35
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Figure 4 is a transverse section taken on line
4-4 of Figure 2;
A ~
Figure 5 is a perspective View of a portion of
the trigger-supporting frame and trigger mecha
nism;
'
Figure 6 is a section taken on line
Figure 3;
'
Figure ’7 is a top plan view, of the forward end
of the power mechanism, the parts being shown
in their operating position.
45
By referring to the drawings, it will be seen
that G designates the- gin which may be of the
conventional type having a conventional gin
breast B which is pivotally mounted in the con
ventional manner and is actuated by a pivot cam
50 lift L also of the conventional type. This cam
lift L is actuated by an operating rod lil which
extends rearwardly of the gin G, as shown clearly
in Figure l;
actuated by a drive belt I4 from a power line
shaft. This drive shaft i2 carries a second driv
ing pulley i5 over which a power belt l@ passes.,
the power belt I6 extending forwardly and longi
tudinally of the frame A and passing around an
idle pulley Il supported or carried by the trans
mission shaft !3. A fixed or drive pulley I9 is
carried by the transmission shaft I8 and is se
cured thereto» in the conventional manner, the
drive pulley i9 being arranged in close proximity
and to one side of the idle pulley I1.
` A brake drum 2Q is also carried by and secured
to the. transmission shaft i8 and may be located
to one side of the fixed pulley i9. A brake band>
2i is secured at one end to the supporting rod 22
which supporting rod 22 is in turn supported by
the upstanding armsy 23 carried by the frame El. 20
The opposite end of the brake band 2l is se
cured to the inner end of the brake lever 25, which
brake lever is pivotally-se'cured between the bi
furcated end 26 of the standard 2l mounted‘on
the front end of the frame l l. A suitable counter 25
balance weight 28 is carried by the outer end of
~
Figure l is a side elevation of the power device
shown in association >with a cotton gin;
Figure 2 is a top plan View of the power device
30
shaft l2 carrying a drive pulley i3 which is
,
For the purpose of lifting thegin breast-B, vI
55 employ a specially constructed'fpower lift -mecha
the brake lever 25.
The frame Il carries near its forward end in
advance of the transmission shaft i8 an auxiliary
transmission shaft 2Q which extends substantially » 30
parallel to the transmission shaft i8 .and is
journaled upon the journals Sil carried by the
frame ll. This auxiliary transmission shaft 29
carries a sprocket wheel 3l over which passes. a
sprocket chain 32, the sprocket chain 32 passing i 35
also over the sprocket WheelSS carried by the
transmission shaft i6 wherebyv rotary motion may
be imparted from the transmission shaft I8 to
theA auxiliary shaft 29. The auxiliary transmis
sion shaft 29 carries a gear 34 at its outer end> 40
which meshes with an enlarged gear 35, which
gear 35 -is carried by the actuating shaft 35
which is journaled at one end, as -`at 31, to the
frame ll, and at its opposite end to a suitablel
supporting journal 6B. This actuating shaft 36 45
carries `an actuating arm 39 which in turn con
nects to the operating rod l0, which rod lil is
connected to the cam lifting lever L. A hand
lever ¿ill is also carried by the actuating shaft 35
to permit the manual operation of the shaft 36
should it be desired at any time.
A chain of other suitable iiexible element 4I Vis
connected to a connecting hook 42 carried by the
enlarged gear wheel 35 and this gear wheel also
carries aplur'ality of connecting hooks 43 which, 55
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2,090,543
act as guides or cradles for the chain as the gear
'
this rotation of the wheel 35 continues, the lug 64
operates in a clockwise direction. VThis chain` 4|
will engage'the lingerv 63> and the ñnger B2'to
the dotted line position shown in Figure 2, where
is connected at its rear end to a lever 44, which'
lever 44 is carried by an upstanding rod 45-note
upon the'weighted lever 25 will cause the Ybrake
band 2|> to be applied, slowing down the rotation
of the shaft I8 andthe lever 44 through the pull`
of the chain 4I will pull the arm 50 Yand triggerr
Figure ö-the upstanding rodV45 being journaled
Y at its respective ends'upon theV arms46 of the up
rightv frame 41. ThisV upright shaft 45 carries a
belt shifting armr48 near its lower end which en
53 to a set position suchas is shown inY Figure’V 5,
resetting the Vvarious' parts whereby they mayV
again actuate uponthepull of the'cord 54 to re
gages the belt shifting finger 49, the belt shifting
finger 49 also engaging or straddling the belt I6
for the purpose of shifting the belt I6 from the
idleV pulley |'| toV thedriving or ñxed pulleyrlß.
lease the trigger.
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It should be understood thatY certainídetail
~ VA tripping lever 5I) is secured to the upper end
v of the upright shaft 45, and this Vtripping ,lever-
changes in the mechanical construction, Vcombi
nation' and ‘arrangement Yof parts may be'em
ployed without 4departing from` the spirit of the
invention, so long as such changes fail within the
l5 is attached to atension coil spring 5|> which
spring is `in turn connected to a point nearV the
rear end ofY the frame Il, as at 52, to normally ’ scope of the appended claims.
exert a rearward pulling action uponfthe >trip- _
ping, lever 50. A trigger Y53 is pivotallysecured
.'20 to the tripping lever50' and is adapted to nor#
Having describedjihe' invention, what is
claimed as new is:V
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1.'A power mechanism forV automaticallylift
Vmally engage` the notch; 54’-_forrnedY in; the _top ing a gin breast- comprising la Vframe,.a> «.‘iriyingwof> the upright frame '41 and'hold theY partsv inV a
, set or Vinactive position.
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means carried by theV Yframe, a 'transmissio'nn `
A coilspring 55 is con
nected to the outer end of the trigger 53 and also
to the tripping leverY V5|] to'normally hold the trig
means carried by said frame, ¿an auxiliaryrtrans-V
mission means Yalso carried» by the frame, an
actuatingv shaft carried >by the frame, an` operat
ger 53 in an engaging position. A pull cord 54
ing gear wheel carried by said actuating;V shaft,
Vis Yconnected to the, outer end of thetrigger 53 f
~ „ Wherebya pullrmanually or otherwise upon the
cordr 54 will cause the trigger Y53 to becomerdisen
gaged from the notch 54', the coil spring 5IY caus
ing thetripping lever 50 to be pulled rearwardly,
the shaftV 45 to be rotated, the lever-44 to be
swung, thereby shifting the belt I6 from the loose
pulley I1 to the driving or ñxed pulley I9 and
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driving means interposed between said-gearwheel` i
and said ñrst mentioned transmissionV means, aj; ¿ .
driving element connecting the transmission
means with the driving means, meansVr for shift-Y
ing said driving element to and from a clutching
V30
position, a trigger for holding said >last >men
tioned means in a set position, a tension spring ` Y
to said shifting means, flexible means
causing the parts to move from the position ' connected
connecting said gear wheel with said shiftingA
shown in FigureV 2 to the positionrshown in Fig
meansrfor automatically returning the shifting
means to a set position,-spring `means,engaging
In conjunction >with my device, I employ'a said ,trigger for holding the trigger'invarl locked
bralrey controlling mechanism v which »consists` in . position, and meansi'for facilitating the moving
" ¿40 a verticallyextending rod 6|I> whichris journaled of said trigger toareleased position.
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v
ure
7.
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7 upon suitable journals 6| carried by the front of
vthe frame Il. This rod 6i!r is provided with an "
2. A power deviceof the classdescribed com
angularly extending finger 62 which is adaptedto prising a frame, a driving mechanism Ycarried
frame, a transmission mechanism »carextend under ‘the Ybrake actuating lever 25. A by the
by the frame; saidY transmission.l mechanism.
*Tg5 second angularly extending ñnger‘ 63 is-carried * ried
comprising Yan idle pulley andra fixed pulley, an _
near the lower endof the rod 60 and extends in ' auxiliary transmission sh’aftïdriven from said “
an opposite direction to theñnger 62~so that this
transmission means, and actuating shaft` for
ñnger 63 may be engaged by the lug 64 carried by V»opening
and closing a gin breast,4 a driving _gear
the inner face ofv the enlarged Vgear wheel 35. A carried by said actuating shaft‘and driven from
¿V50 coil spring 65 is connected to an arm 66 carried
said auxiliary transmission shaft, a brake-mecha->
by the rod 60 and normally tends to pull the finger nism
for said transmission mechanism, a tripping `
62V in toward the'fr‘ont end ofthe frame’lI and ’ mechanism for releasing saidV brake mechanism,.-Y
,
Vunder the lever 25.
l The operation of they device is as follows:
When the trigger isset forrholding the arm 50
in a set position and the operating'cable or pull
cord 54'is pulled, the trigger 53 will be disengaged
from the notch 54’> and the spring 5| will swing
the arm 50 rearwardly, the fingerY 62 being in a
. >öû'position under the lever 25» to release the brake
band 2| and the driving belt I6 being in engage
mentV with the idle pulley I1. 'Ihe partsV will
then immediately-.assume the position, shown in
Figure 'l due to the'fact Ythat the brake will b_e
‘ 65 disengaged and the gear wheel`35 may rotate in
a counter-clockwise direction under the pull of
the lever 44`on the chain 4| V,At this instant the
belt shifting ñnger 49 will immediately throw
. the belt I6 from the position shown 'in' Figure »2
' 70 to the position shown in Figure 7 whereupon the
driving pulley I9 will be actuated'to> gradually
pull upon the chain 4| through the-rotation of
the gear wheel-35 in a clockwise direction and this
_ movement as it continues will cause a pull upon
v‘175 the Lrod `I0 and the opening of the .gin breast.¿As
and means carriedA by said gear for moving said
tripping mechanism toa position for releasing',` '
said brake mechanism.
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3. A power device of the class described com-`
prising a /framefa driving mechanism carried lby Y
the frame, a transmission mechanism carried by
the frame, said transmission mechanism (comr
¿prising an idle pulley anda fixed pulley, an
auxiliary transmission >shaft driven from said
transmission means, an actuating shaft fior open
ing and closing a gin breast, a driving gear car
ried by said actuating shaft, and driven fromsaid auxiliary transmission shaft, a. brake mecha- ¿
nism for -saidtransmission mechanism, a trip
ping mechanism fo'r releasing said brake mecha
nism,` means carried> >by fsaidY gear `for mov
ing said tripping mechanism to va 'positionifo?
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releasing said brake mechanism, said> brake
mechanism having an operating'fweighted leven>. ,<70
_
said tripping mechanismcomprising a rod hav
ing a laterally extending finger for engaging said
_lever and releasing said brake mechanism as-the
ñnger engages _saidhlevenrmeans Vfor> norrrially-L
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2,090,543
holding said ñnger in engagement with the lever,
said tripping mechanism also comprising an op
positively extending finger, and said gear having
a lug for engaging the last mentioned finger
whereby said tripping mechanism will be moved
to a position for disengaging said lever when said
gear rotates to a predetermined position.
4. A power device of the class described com
prising a frame, a driving mechanism carried by
the frame, a transmission mechanism carried by
the frame, said transmission mechanism com
prising an idle pulley and a fixed pulley, an aux
iliary transmission shaft driven from said transmission means, an actuating shaft driven from
said auxiliary transmission shaft, means con
nected to said actuating shaft for operating a gin
breast, a brake mechanism for said gin breast, the
means for driving the actuating shaft from the
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auxiliary transmission shaft embodying a gear
wheel, a chain secured to said gear wheel, guid
ing means for the chain, a belt for driving the
transmission mechanism from the driving mecha
nism, a belt shifting mechanism for moving the
belt to and from a driving to an idle position,
said shifting mechanism comprising an operat
ing shaft and means for engaging the belt, an
operating lever engaging said last mentioned
shaft, tension means for automatically swinging
the lever, latching means for holding said lever
in a locked position, means for releasing the
latch whereby the lever may swing automatically
for shifting said belt, and means for connecting
the chain to said last mentioned shaft for re
turning said lever from an unlocked to a locked
position.
GEORGE H. MCCLINTOCK.
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