US1823135A

US1823135A - Huller gin

Info

Publication number: US1823135A
Application number: US440490A
Authority: US
Inventors: Elliott Thomas
Original assignee: Continental Gin Co
Current assignee: Continental Gin Co
Priority date: 1930-03-31
Filing date: 1930-03-31
Publication date: 1931-09-15
Anticipated expiration: 1948-09-15

Description

T. ELLIOTT sept. 15, 1931.

HULLER GIN Filed March '31, 195o Thmms 'El/fatt WITNESS Mfm ATTO RN EYS Patented Sept. 15, 1931 UNITED STATES PATENT orifice` THOMAS ELLIOTT, F BIRMINGHAM, ALABAMA, ASSIGN-OR TO CONTINENTAL GIN COMPANY, A CORPORATION OF DELAWARE HULLER GIN Application filed March 31,

My invention relates to huller gins, of the double or single rib type, and is particularly concerned with novel means for effectively cleaning and separating hulls from seed cot- ,5 ton and also for reclaiming any seed that become intermingled with the hulls, whether by dropping into the outer or huller breast in the double rib type of huller gin or by the discharge of the seed with the hulls separated from the cotton in the single ribl type of huller gin.

My invention relates to that type of gin in which the entering seed cotton, mixed with hulls and trash, is .delivered by any suitable hull board means, preferably one comprising a hull board delivering to a picker roll which in turn delivers the cotton and hulls into engagement with the teeth of the gin saws. In gins of this type 2G the delivery end of the hull board means, which in the construction above described will be a picker roller, defines the opening with reference to the gin saw cylinder mi through which the hulls must escape and in the case of the double rib huller gins the seed which fall back into the breast from the outer huller ribs must also escape through this opening or passage between the picker y roll and the gin saws. The practice has been to reduce this opening or clearance as much as possible without causing the gin to choke up by reason of unduly retarding the escape of the hulls, but the larger the opening the greater the tendency is for theescape of cotton with the hulls, and therefore the practice has been to attempt to regulate the size of this opening empyrically with relation to the particular material under treat- Y ment so that while allowing a suiiicieiitly free escape of the hulls there wo-uld be a minimum loss of cotton therewith.

Various means have been provided for reclaiming the cotton escaping with the hulls in such a construction as has been above de- 5 scribed, and my present invention is concerned with the reclaiming of all cotton that passes out with the hulls, and it has the important advantage of permitting the h ull escape opening past the gin saws to be enlarged so that no tendency of the hulls to 1930. Serial No. 440,490.

choke up in the gin breast will occur and yet it will prevent the loss of cotton that passes out with the hulls through this enlarged opening. As a result of this I greatly increase the capacity of the gin which is limited by its tendency to choke.

Furthermore, by the rapid removal 0f hulls from the gin breast, I avoid the tendency of the saws to cut up the hulls and plates interposing below the hull boardv means a reclaiming saw cylinder of reduced diameter as compared with the gin saw cyliiider but preferably having a like direction of .rotation and I associate with these reclaiming saws a guide board, preferably concavo convex in shape and also preferably provided with perforations suitable for the escape of seed. This guide board eX'- tends under the reclaiming saws and rises to a sufficient height on the side of said reclaiming saws remote from the gin saws so as to cause a slight back pressure of hulls as they overflow its discharge edge, this back pressure holding the hulls and trash in position to be stripped of cotton by the reclaiming saws. Moreover, this back pressure can be regulated by an adjustment of Y the height of the overflow edge so as to press the overfiowing mass of hulls against the reclaiming saws in such manner as to complete the reclaiming of cotton from the hulls before permitting their overflow and escape.

Vhere the huller gin is of the single rib 9 type all of the seed and hulls pass over the guide board leading to the reclaiming saws and the seed will fall through the perforations in said board and thus separate themselves effectively from the hulls.

A further important feature of my invention lies in the fact that the reclaiming saws can be driven at a very low peripheral speed, thus acting to prevent a tendency which would result from high peripheral speed of the teeth on its lip-going side to throw hulls over the overflow edge of its guide board before they have been cleaned of cotton.

A further advantage of my invention in its preferred form, lies inthe fact that the reclaiming saws, rotating in the same direction as the gin saws, will act as a positive means to engage and move the hulls escaping from the gin breast away from position under the opening between the hull board meansl and the gin saws, thereby insuring against the hulls accumulating in the gin breast with the disadvantages above pointed out.

A further important advantage of my invention lies in the fact that it is capable of ready application as an attachment to existing huller gins.

My invention further comprises the novel details of construction and arrangements of parts, which in their preferred embodiment are illustrated in the accompanying drawings, which form a partof this speciiication and which show in vertical transverse crosssection view of a conventional type of double rib huller gin with my improved cotton reclaiming attachment. v

As embodied in the drawings, I show a conventional huller gin comprising the gin breast 1 having an inclined hull board 2 which delivers lthe seed cotton', hulls, trash, etc.,v entering the gin breast to' a picker roll 3, forming part of the hull board means which acts to deliver the material to be treated into engagement with the teeth of the gin saws 4, which work between outer hulling ribs 5 and inner ginning ribs 6 in the usual manner. IIulls, stripped ,from the seed cotton by the ribs 5 are carried by the clockwise rotation of the picker roller 3 downwardly past the saws 4 and are de- Iivered to the reclaiming mechanism. The hull board 2 terminates in spacedrelation with the tips of the spikes on the picker roller 3^, leaving. suflicient clearance for cotton to pass back up from the reclaiming mechanism into the gin breast to be treated again by the gin saws, b ut not leavingsufficient opening to permit any appreciable amount of cotton, hulls orv the like to pass directly to' the reclaiming mechanism. The passage through which the hulls escape from the gin breast between the picker roller 3 and the gin saws 4 isl indicated by the numeral 8 and this passage or opening is large enough to permit a free esca )e of hulls from the gin breast, this escape eing aided by the positive action of the picker roller spikes on the hulls. The hulls and any cotton to be reclaimed therefrom escaping through the opening 8 pass onto `a concavo-convex guide plate 9 which has a free outer edge forming an overflow lip 10 over which the hulls escape after being cleaned by the acy tion lof the reclaiming saws 11.

The reclaiming saws 11 are materially smaller in diameter than the gin saws 4 and are preferably driven by any suitable means, not shown, in the same direction on the gin saws. They will therefore tend to engage the hulls as they pass onto the guide boaid 9 andlwill drive them around under the saws l1 and towards the overilow lip 10. I-Iere the hulls will accumulate between the guide board and the reclaiming saws and as they accumulate they will create aback pressure or resistance to the action of thev reclaiming saws as the latter pass through the mass of hulls. This accumulation of the hulls before they overflow serves to holdv them in proper relation to the traveling reclaiming saws 11 to enable thelatter to work through the hulls and to pick up and remove therefrom the cotton that would otherwise escape. This cotton is doifed from the reclaiming saws by the doihng brush 13 which will deliver it to the picker roller 3 which will carry it upwardly into the 'gin breast and return it to the gin saws 4.

A suitable guard 14 is provided for the doiiing brush 13 and any suitable adjustment means may be providedV for the guide board 9, such as the eccentric 12, which will act to vary the clearance between the guide `ioard 9 andthe saws 11 and also to vary the height of the overflow lip l0, thus regulating the resistance of the overflowing mass of hulls to the reclaiming saws. To separate` seed from the hulls, I preferably provide suitable perforations or apertures, as at 15, in the guide board 9 adapted to permit any seed that fall outwardly from the huller ribs 5 and enterY the opening 8 to be separated from the hulls and recovered. In the case of single rib huller gins all of the seed will pass over the guide board 9` and in such case agreater portion of its surface should probably be provided with apertures 15 for the escape of the seed.

The guard 14 is extended close enough to the saw cylinder 11 to knock back hulls tending to pass over with this saw cylinder to the doiling brush 13. It thus servesas a suitable stripping means for the reclaiming saws.

It is i1 portant to note that the reclaiming saws can be-driven at a very slow peripheral speedV as contrasted with that of the gin saws. For instance, I have obtained very satisfactory results where the peripheral speed'of the reclaimingsaws was about 7% of that of the gin saws. The advantage of this slow speed is that the teeth of saw l1 do not travel fast enough up through the mass of hulls to tend to throw them out by centrifugal force which isc might cause the ejection of hulls before they are cleaned of any adhering locks of cotton. lVhen the reclaiming saw teeth move upwardly slowly through the mass of hulls adjacent to the overliow lip 10, they gradually force the overflow of hulls, but the hulls remain in position long enough to insure that the teeth will reclaim the cotton therefrom before they are discharged.

In the operation of my invention for the treatment of seed cotton which is practically free from hulls, due to the large clearance provided between the picker roller 3 and the gin saws el, a substantial amount of cotton will tend to escape through the passage 8 but it will all be caught bv the reclaiming saws il and returned by its dofling brush to the picker roller 3 and by that roller again returned to the gin saws and recovered, so that it will not be lost.

lVhcre a large amount of hulls and trash are present in t ie seed cotton, these hulls will be knocked back by the huller ribs from the gin saws and will be carried out by the action of the picker roller and will pass through the opening 8 onto the guide board 9 and thence into engagement with the teeth of the reclaiming saws ll which, moving in the same direction as to that of the falling hulls, will drive them under the reclaiming saws toward the space between the saws ll and the overflow edge l0 of the guide board. The hulls will accumulate in this last mentioned space with the saws 11 working up through them until they begin to overflow the edge 10 and after this the action will be continuous, hulls overflowing the lip 10, and seed escaping through the apertures 15 and such cotton as may pass from the ginmng breast with the hulls will be reclaimed by the teeth of the saws 11 dofled by the brush 13, and returned by the picker roller 3 to the gin saws 4f.l

rl`he purpose of the adjustment 12 will be obvious for where there are but few hulls the guide board 9 should be spaced so that the saws 11 will be sure to contact with such hulls and. thus will have a better opportunity to strip of any cotton adhering thereto, but where there is a large amount of hulls and trash the guide beard can be lowered to increase the clearance and avoid any tendency of the reclaiming saws to be clicked or to unduly cut up the hulls.

Where I refer to reclaiming saws, I may use the customary saw cylinder or any equivalent means which will serve to engage the cotton and strip it from the hulls.

`While my present invention is applicable to oth er uses than as the reclaiming agency in a huller gin, my present invention is confined to this particular application.

What I claim is :w-

l. In a huller rib gin, the combination with the gin breast having gin saws and hull board means for delivering the seed cotton to said saws, of reclaiming saws cisposed below said hull board means and rotatablein the same direction as the gin saws, means to guide the hulls and cotton escaping between said gin saws and hull board means into engagement with said reclaiming saws, means .to-accumulate hulls on the upgoing side of said reclaiming saws in position to be engaged and stripped of cotton by said reclaiming saws before being discharged, and. means to deff cotton from said reclaiming saws and return it to the gin saws.

2. The combination with a huller rib gin having in its breast gin saws, a hull board, and a picler roller working between said hull board and saws, of reclaiming saws and dofling means therefor mounted below saidA hull board, and means to cause hulls escaping between the said roller and gin saws to accumulate in position to be stripped of cotton by the upgoing side of said reclaiming saws. said roller being disposed to receive the cotton doffed from the reclaiming saws and rcturn same to the gin breast.

3. The combination with a huller rib gin having in its breast gin saws, a hull board, and a picker roller working between and in spaced relation to said hull board and saws, of reclaiming` saws and dofiing means therefor mounted below said hull board, and means to cause hulls escaping between the said roller and gin saws to accumulate on the upgoing side of said reclaiming sai-vs in position tb be stripped of cotton by said reclaiming saws, said roller being disposed to receive the cotton doifed from the reclaiming saws and return same to the gin breast. l

4L. In a huller rib gin, the combination with a gin breast having gin sawsl and a hull board means comprising an inclined hull board and a picker roller coacting with the gms saws, of reclaiming saws disposed below said hull board means, means toi guide hulls and cotton falling between said rollY and the gin saws into engagement with said reclaiming saws, means to cause hulls to accumulate on the upgoing side of said reclaiming saws in position to be engaged stripped of cotton by said latter saws before being discharged, and means to doff cotton freni said reclaiming saws and deliver it to said picker roller.

5. In a huller rib gin., the combination with a gin breast having gin saws and a hull bo-ard means comprising an inclined hull board and a picker roller coacting with the gin saws, of reclaiming saws disposed below said hull board means, means to guide hulls and cotton falling between said roller and the gin saws into engagement with oneside of said reclaiming saws, means to canse hulls to accumulate on the other side of said reclaiming saws in position to be engaged and stripped of cotton by said latter saws before being discharged, and means to deff cotton from said vio reclaiming saws and deliver it tol said picker roller, said picker roller and reclaiming'saws having the same direction of rotation as the gin saws.

6. In a huller rib gin,vthe combination with a gin breast having gin-sawsand a hull: boa-rd means comprising an inclined hull board and a picker roller coacting with. the gin saws, of reclaiming saws disposed below said hull board means, means to guide hulls and cotton falling` between said roller and the gin saws into engagement with said reclaiming saws, means to cause hulls to. accumulate on the upgoing side of said reclaiming saws in position to be engaged and strippedV of cotton by said latter saws before being discharged, and means to dofl cotton from said reclaiming saws and deliver it to said. picker roller, the picker roller being` disposed between the reclaim-ing saws and the gin saws.

7. 'In a huller rib gin, the combination with a gin breast having gin saws and a hull board means comprising'an inclined hull board and a picker roller coacting with the gin saws, of reclaiming saws disposed below said hull board means, means to guide hulls and cotton falling between said roller and the gin saws into engagement with said' reclaiming saws, means to cause hulls to accumulate in position to be engaged and stripped of cotton while being kicked upwardly and discharged by said reclaimingsaws, and means to doif cotton from said reclaiming saws and deliverl it to said picker roller, said picker roller being discharged between the gin saws on one side and the hull board, the reclaiming sawsl and their dofiing means onthe other side.

8. The combination with the breast and saws of a huller rib gin, of reclaiming saws, hull guide means adapted: to deliver hulls escaping from said ginv breast' under and beyond said reclaiming saws and having its hull discharge edge raised to cause hulls to accumulate inthe space between it and said reclaiming saws before being discharged, means to doif the reclaiming saws, and means to return the dofled cotton tothe ginv saws.

9. The combination with. the breast of a huller rib gin,y of reclaiming saws, hull guide means adapted to deliver hulls escaping from said gin breast under and beyond said' reclaiming saws and having its hull discharge coge raised to cause hul'lsto accumulate in the space between itl and said reclaiming saws bel fore being discharged, means to doff` the reclaimng saws, and means to return the dotted;

cotton into the gin breast, the reclaiming saws being rotatable sothat their teeth rise through the accumulated hulls.

lO. The combination with the breast of a huller rib gin, of reclaiming saws, hull guide means adapted to deliver hulls escaping from said gin breast under and beyond said reclaiming saws and having its hull discharge edge raised to cause hulls to accumulate in the space between it andv said reclaiming saws before being discharged, means to do-if the reclaiming saws, and means to return the doiied cotton into the gin breast,y the reclaimescaping hulls and comprising means to collect said hulls in a space fromv which they gradually` and freely overflow, reclaiming saws disposed to work through the hulls co1- lectedin said space and. strip them of cotton before they overflow, and means to doit the reclaiming saws and return the' doded cotton to the ginbreast.

12. The combination with a huller rib gin having a ginI breast, ginI saws and hull board means spaced from said saws to provide for n a free escape of hulls from said breast, of a cotton reclaiming means adapted to treat the escaping hulls and comprising means to collect said hulls in a space from which they gradually and freely overiiow, reclaiming saws disposed to work through the hulls collected in said space and strip them of cotton before they over'ow, and. means to dof-i' the reclaiming saws and return the dolfed cotton to the gin breast, the saws being rotated so as to engage and feed the hulls as they escape from the g-in breast into the bottom of said space.

13.A In a huller rib gin according toclaim lf, the combination with the reclaiming saws, of a stripping' means disposed in advance of the means-'to dof said saws.

In testimony whereof I aiiix my signature.

THOMAS ELLIOTT.

EIC