US1418106A - Cotton gin - Google Patents

Description

E. R. TISCHER.

COTTON GIN. APPLICATION riuzn MAR. 16. 1920.

Patenfied May 30, 1922 I INVENTOR W 1" BY ra ATTORNFVS UNiTTfi STATES earner orrics.

EDW'ARD R. TISCHER, OE HOUSTON, TEXAS, ASSIGNQR 0L1 FORTE PER CENT TO GUS EMIVIER'I', OF'I-IARRIS COUNTY, TEXAS.

corron m Specification of Letters Patent. Pafigntgd lway 30, 1922,

Application filed March 16, 1920. Serial No. 366,251.

lint cotton may be stripped from the seed.

and the lint and seed separated from each other.

Another object of the invention is to provide a device of the character described whereby the lint cotton, after it is separated from the seed, will be freed of all mats, or compact masses, and will be reduced to a loose and fiuffy state.

A further feature of the invention is to provide the combination with a' ginning roller, of a stripper roller and a stripping,

shoe which cooperate to strip the lint from the seed, said stripper roller and shoe being so arranged that they may be readily withdrawn from the ginning roller for repairs or inspection.

A further feature resides in the combination with a spiked roller of a brush by the co-operation of which the lint cotton after being freed of the seed will be separated into a uniform loose and flufiy mass.

A still further feature consists of conveyors, operated in a novel manner for conveying away dirt or other waste materials.

With the above and other objects in view the invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which is given in thi specification and illustrated in the accompanying drawings, wherein:

Figure 1 shows a front view with certain parts removed for the sake of clearness, Figure 2 shows a vertical sectional view. Figure 3 shows the gearing employed, Figure 4L shows an enlarged edge view of the stripper shoe, and I Figure 5 shows an enlarged fragmentary view of the conveyor driving mechanism.

' Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts in each of the figures, the numeral 1 designates the end members, or legs o fthe casing which are supported on any suitable base as 2. Rotatably V mounted in suitable bearings in the upper part of these end members is the transverse shaft 3, and fixed upon this shaft, within the casing, is the ginning roller 4. This roller 4 is partially surrounded on the rear by the arcuate hood 5which forms the upper part of the back of the casing and this hood has along transverse slit 5 therein for the intake of air. In front of the ginning roller, and slightly above it there is the stripper roller which is fixed upon the transverse shaft 6 and surrounded by the arcuate hood 7. The shaft 6 is rotatably mounted in suitable bearings carried by the ends 8, 8 of the hood 7. The stripper roller is formed of end spiders 9 to which the ends of the stripper bars 10 are secured. These bars are spaced apart and have radiating holes or bearings through which the stripper fingers 11 loosely fit. The inner ends of these fingers are formed with heads which prevent them from being thrown outwardly bycentrifugal force and these heads may contact against the shaft 6,

' when this roller is at rest, to prevent them of while the gin is at work. The lower edge of the hood 7 is fastened to the inner edge of the forwardlydeclining transverse blade bar l3,'which is arranged 'in front of the gin. The outer edge of this blade bar has bearings on a transverse rod 14, which is fixed in suitable bearings carried by the end members 1, 1 and hand lever 15 is secured to this blade bar. A transverse stripper blade 16 is fastened at its lower edge to the inner edge of the blade bar and the free edge of this blade isarranged tangentially with respect to the front side of the ginning roller, as shown in Figure 2. This blade is preferably formed of a plate of bronze backed by a steel plate which is riveted thereto so that when the ginning roller and the blade become heated by friction with the cotton, the bronze plate will expand more than its steel backing and operate to carry the free edge of the blade, and the stripper shoe 17, carried by said edge, away from the ginning roller to compensate for the expansion of said ginning roller and maintain their relative adjustment. The stripper shoe 17 is also composed of bronze and is formed of sections as shown in Figure 4. Each section is formed of a plate doubled together thus forming a two ply shoe and the upper side of each section has the outwardly turned keepers 18, 18 which engage over the free edge ofthe blade 16 to hold the shoe in frictional relation with the front side of the ginning .roller. In order :to, gain access to the stripper roller and stripping shoe 1?, for inspection, or repairs, or for other pur poses, the lever 15 may be pulled forwardly which will operate to withdraw said members, together with the blade bar andblade,

from the ginning roller, as illustrated in dotted lines in Figure 2. Upstanding from the base 2 and spaced apart are the bearings 19, 19 wherein the shaft 20lis rotatablymounted.

Each end of this shaft has an arm 21 fixed thereon and the shaft also has a .footlever 22 fixed thereto. Hooks 23, :23 are pivoted at their lower ends to the free ends of the respective arms 21, 21 and their upper ends are formed to engage over thedepending catches 24, 24 carried by the underside of the blade bar 13. Adjacent the foot pedal there is the standard 25 which is secured to, and stands up from the base 2- and the upper end of this standard is overturned'and has the adjusting bolt 26 threaded.therethrough. The lower end of this bolt is connected to a bearing block 27, which is vertically adjustable on said standard and through this bolt the block may be adjusted up and down. When the pedal 22 is engaged under the block 27 said pedal is locked against upward movement and operates, through the hooks 23, to lock the blade bar 13,. and its appendants, above described in position forginning.

By a lateral movement the pedal may be.re-

leased and then moved upwardly to release the hooks from the catches 24. When said hooks are moved upwardly theinclined shoulders 23 thereof movingagainst't-h'e re"- lease blocks. 28 operatev to disengage the. hooks from their respective catches thus unlocking the blade bar and permitting the manipulation of the hand lever- 1.5 for :the

purpose aboveexplained.

Underneaththe ginning roller there is a drum-like fan 29, which-is. fixed uponthe.

transverse shaft 30, rotatable in suitable hearings in the end membersl, 1. This fan is partially surrounded in. front hymeans of an arcuately formed'casing, front 31, which is preferably formed of sheet metal, andcontinues upwardly, surrounding the lower part of the ginningroller in front. .Therupper edge of'this casing front is spaeedmfrom the inner edge of-the'blade bar to rovide-Ian, air inlet 32.. Abovesthis vfan, .arran ed to cooperate therewith there is the spi ed roller 33, consisting of a drum and projecting spikes which radiate therefrom. This roller is mounted on the shaft 34 which rotates in suitable bearings carried by the end members 1, 1. A long chamber, for the reception of dirt and the like, is located behind the roller 33 and is formed with the top and bottom boards 35 and 36, which are spaced apart, and the hinged door 37, forming a closure for said chamber and permitting access thereto.

WVithin the chamber thus formed there is an arcuately formed screen 38 formed of foraminated material and surrounding the drum 33 behind, said screen forming, in effeet, a continuation of the hood 5, which, to-.

gether form the back of the gin casing. A

long brush 39 is fastened to the under side of through the" upper part of the screen 38 and cooperate with the spiked roller 33 as hereinafter explained. Fixed upon one end of the shaft 3 there is a drive pulley 40, and a spurgear 41 inside the pulley. A. drive belt (not shown) operates over this pulley and rotates the shaft, and ginning roller thereon, in the direction indicated by the arrow 'in Fi ure 2. Fixed on one end of the shaft 6 an normally in mesh with the spur gear 41 there is the smaller spur gear 42, through which rotation is imparted from the gear 41 to the stripper roller. An idler gear 43 is loosely mounted on one end of the rod 14'and is in mesh with the gear 6 and this gear 43 carries the pulley 44 through which the feeder (not shown) is driven.

The other end of the shaft 3 carries a fixed pulley 45 in alignment with a smaller pulley 46 which is fixed on the end of shaft 3 and a belt 47 operates over these pulleys and transmits rotation from the former to the latter and thus driving the fan 29. The inner end of the pulley 45 is extended and formed into a grooved pulley 48, aligned with a corresponding grooved pulley 49 fixed on the shaft 34, and operating over these last named pulleys there is the cross,

belt 50 which transmits rotationf-rom the roller In front and rear of the gin there are the respective belt conveyors 51 and 52 which are driven by the rollers 53 and 54, respectively, whicharefixed onthe front and rear ends, respectively, of the shaft 55. Loosely mounted on the forward end of the shaft 55 there is an elongated hood 56 and pivoted to this hood there is a ratchet-lever 57 whose inner end is formed with ratchet teeth 58 provided to engage and release the shaft 55, as hereinafter explained. The correspondingyend of' the shaft 34 has an arm 59 fixed thereon and alink 60.is pivoted at its respectilve ends tothe free ends of said arm and ratchet lever. As the shaft 34' rotates it'operates through the arm 59 and the link 60 to oscillate the lever 57 and to alternatively engage the teeth 58 with, and release them from, the shaft 55 and to thereby impart successive partial rotations to said shaft, and, through it, to move said conveyors intermittently. These conveyors carry away the seed dirt and other refuse discharged from the stripper roller, and the feeder.

The cotton to be'ginned is delivered by the feederinto the hopper 12 and the ginning roller carries said cotton into contact with the stripper shoe 1?. This shoe arrests the seed but the lint cotton is carried on, by friction of the ginning roller 4, between said roller and shoe. As before stated, this shoe sets on the upper edge of the blade 16 and has more or less freedom to rock back and forth thereon so as not to bind too closely against the ginning roller and thus to permit the lint to pass but to arrest the seed. The stripper fingers beat against the seed cotton, held by said shoe, and loosen up the fiber and remove the seed and dirt therefrom which are discharged through the openings 61 cut through the front side of the hood 7 and fall on to the belt 51. The rota tion of the fan 29 creates a suction through the air inlets 5 and 32 and the lint cotton is carried by the air current on down through the casing into contact with the spiked roller 33. The spikes 62 of this roller, project out far enough to prevent any of the lint from passing down in front of said roller, and they engage with said lint and sweep the same around the screen 38 and into contact with the long brush 39 which operates to further separate and loosen the fiber and any remaining dirt and refuse therein is released and blown through said screen and falls into the chamber 63 from which it may be removed through the door 37. The lint cotton is then caught up by the fan 29 and carried around in front of it and discharged through the outlet 64:. When the stripping roller and blade are withdrawn, as shown in dotted lines in Figure 2, the spur gear 12 will ride around the gear 43 into the position shown in dotted lines in Figure 3, and will thus be carried out of mesh with the spur gear 41. The stripping roller will thus be stopped for the inspection and repair of it or the stripper shoe, and the feeder will also be stopped to prevent the delivery of cotton to the gin.

What I claim is 1. A cotton gin including a casing, a ginning roller rotatably mounted therein, a stripping roller arranged to cooperate with the ginning roller, loosely mounted fingers carried by the stripping roller, a shoe arranged in tangential relation tothe ginning roller and provided to arrest seed cotton carried into contact with it by the ginning roller to permit the fingers of the stripping roller to operate against said cotton to strip the seed from the lint thereof.

2. A cotton gin including a casing, a ginning roller rotatably mounted therein, a shoe arranged in tangential relation to the ginning roller and provided to arrest the seer cotton carried into cont-act with it, by saidroller, a stripping roller rotatably mounted in the casing and provided with loosely mounted fingers which beat against said cotton held by said shoe to remove the seed therefrom said ginning roller meanwhile operating to carry, the feed lint, by friction between said ginning roller and shoe.

3. A cotton gin including a. casing, a ginning roller rotatably mounted therein, a stripping roller arranged to cooperate with the ginning roller, a stripper blade arranged in tangential relation to the ginning roller, a removable shoe mounted on the blade and provided to arrest seed cotton carried into contact with it by the ginning roller, to per mit the stripping roller to operate against said cotton to strip the seed from the lint thereof, and means for withdrawing said stripping roller and shoe out of operative relation with the ginning roller.

4. A cotton gin including casing, a ginning roller rotatably mounted therein, the front part of the casing being formed into a surrounding hood which is hinged with respect to the gin, a stripping roller rotatably mounted in said hood, a stripper blade secured to the hood and arranged tangentially with respect to the ginning roller and located between said rollers a shoe fitted over the free edge of the blade means for holding said stripping roller and shoe out of, or in operative relation with the ginning roller, and means for locking them in the last mentioned relation.

5. A cotton gin including a casing, a ginning roller rotatably mounted therein, a means arranged to cooperate with said roller whereby the cotton seed are arrested while the lint is stripped therefrom by said roller, a suction fan arranged in the casing underneath the roller and provided to create an air current through the casing whereby the lint is drawn from said roller, spiked roller rotatably mounted in the casing above the fan, and rotatable in an opposite direction from the fan rotation, a screen surrounding said spiked roller in the rear and a fixed brush arranged tocooperate with said spiked roller.

6. A cotton gin including a casing, a ginning roller rotatably moiuited therein, the front part of the casing being formed into a surrounding hood, provided with openings, a stripping roller rotatably mounted in said hood, a shoe cooperating with the ginning roller and arranged to arrest the seed cotton carried into contact therewith by the ginning roller, fingers carried by the stripping roller Which beat against the cot ton held by said shoe to remove the seed and foreign matter therefrom which are discharged through said' openings, a belt conveyor arranged to receive said seed and for eign matter so discharged through said openings, and means for intermittently niovi11 said conveyor.

I. In a cotton gin a stripper blade formed of bronze backed by a steel plate Which is riveted thereto.

8. In a cotton gin a stripper blade formed of bronze backed by a steel plate which is riveted thereto and a stripper shoe set on the free edge of saidblade, I

9. In a cotton gin a ginning roller, a blade arranged in tangential relation thereto and,

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