US1241028A - Threshing-machine. - Google Patents

Description

A. C. SANFORD.

THRESHING MACHINE.

APPLicAnon mw Nov.13. Isls.

Patented Sept. 25, 1917.

1..... u 1 x u J n w u n i M able rubbin UNITED STATES PATENT QFFICE.

ALFRED C. SANFORD, 0F GRANGEVILLE, IDAHO.

THnEsHING-MACHINE.

Application filed November 13, 1915.

To all whom t may concern:

Be it known that I, Amann) (l. SANronu, a citizen of the United States, residing at Grangeville, in the county of' Idaho and State of Idaho, have iurented certain new and useful Improvements in 'lhreshing-lllachinos, of which thefollowing is a specification.

This invention relates to improvements in threshing machines for hulling the berries: of various kinds of plants.

The principal object of the invention i s to provide an Improved method and mecha nism whereby a differential or variable attritive action will be applied to material acted upon to hull the berries and discharge the same absolutely clean and clear for filial separation from the chaff.4

More particularly speaking, my invention involves an improved means for gradually advancing the material while the latter' is being subjected to a differential or variable attritire action so as to clear the way for a constant feed of material to the machine by reason of the constant discharge therefrom.

In the most specific form of my invention, I employ endless friction belts which are supported by rollers in such a manner as to dispose laps of ad'acent belts in abutting relation and in su cient frictional engagement with each other to relatively tightly compress the heads of the stocks when the latter are advanced between the belts. In order to obtain the threshing or separating action, advance one belt at a reater Spee than th" tether and I thereby o tain a vari action which serves to hull the berries wit out in any way injuring the latter.

My improved method and mechanism will `be more fully described in connection with the accom anying drawing and will be more particular y pointed out m and by the appended claims.

In the drawing Fi re 1 is a longitudinal vertical seetiona View on line 1-1 of Fig. 3.

Fig. 2 is a view in side elevation.

Fi 3 is a plan view. Lilgre characters of reference designate similar parts throughout the different figures of t iedrawing.

In the particular form shown, my imroved threshing machine is made up ol a rame comprising sides 1 and 2, a bottom Specification of Letters Patent.

Patented Sept. 25, 1917. serial No. 61,236 i 8 and an end l.` In the sides 1 and 2, near the intake or ingress end 5, l journal upper and lower bight rollers (3 and 7. Said rollers are shown as being mounted, upon spindles 8 and l) which are journaled in the sides l and 2 in such a manner as to rotate 'about fixed axes. At the egress end l0, of the niachine, I provide bight rollers 11 and 12 which are mounted upon s indles 13 and 14, the latter being controlled y tension means, which will be resently described.

About the bight rollers I train belts, preferably of some forni of fabric such as canvas. al1-upper bolt being designated as a whole at 15 and a lower belt being designated as a whole at 1G. At the ingress end 5," it will be seen that the bight rollers 6 und 7 are in staggered relation, or are of-set sullciently to cause the bight roller 7 to protrude in subjacent relation with respectto tbe bightroller G thereby providing a convenient intake, as indicated by the arrow. l `urther1nore, bight roller 1l overhangs bight roller 12 so as to effect a downward discharge of the material, as indicated b the arrow and the egress end 10. Now 1t will be seen that the adjacent laps 17 and 18, of the belts 15 and 1G, are held by the rollers in ul'iutting relation and it will also be noted that the peculiar disposition of the bight rollers is such that their adjacent peripheries are off-sel. or staggered so as to 1mpart to the abutting laps 17 and 18, a solliewhat sinuous contour during their active travel. During the inactive travel of the belts, considering the upper and lower laps 19 and 20, the belts travel in strai ht lines. Now in order to further enhance rietional engagement of abutting laps 17 and 18, I preferably provide idler rollers, which are also desi rably tension rollers, the idle rollers bei-ng disposed between the bight rollers and being indicated at 21 and 22. Said Vidle rollers are mounted upon spindles 23 and 24 and the latter are journaled in bearings 25 and 26. Said bearings 25 and 2G are mounted in slots in the sides 1 and 2 and are acted upon by springs 27 and 28, which are interposed between said bearings and suitable abutments 29 and 30.

Now it will be seen that the idle and tension rollers 21 and 22 are in4 such staggered relation with respect `to the bight rollers, that tl. -y deflect the abutting laps of belts so as to cause said laps to take a sinuous course throughout their travel between said rollers.v

The improved tension means herein shown, comprises journal rods 31 and 32, two for each of the spindles 13 and 14, and each journal rod is providedwith a boxing formed on its end, as indicated at 33 and 34, in which the ends of the spindles 13 and 14 are joue naled. Said tension rods 31 and 32 extend through the end 4, of the machine, and are threaded to receive winged nuts 35 and 36 which may be tightened against the end 4, of the machine to longitudinally displace bight rollers 11 and 12 with respect to bight rollers 6 and 7.

Now it will be seen that the discharge end bight rollers 11 and 12 are not journaled to rotate about lixed axs and that they are capablo of yielding movement away from each other, in case of any clicking or massing ot' the material interposed between the adjacent laps 17 and 18.

It will be seen that I h'ave provided tension means acting in the direction of the length of the machine, in the forms of the rods 31 and 32, and also tension means acting transversely of the machine. in the form of s ring actuated rollers 21 and 22.

Mldans is provided for actuating the belt members differentially so as to obtain a high degree of attritive action on the interposed material, and preferably, and at the same time, progressively advance the material from the ingress toward the egress end. In the particular form shown, I drive one of said belts at a higher speed than the other and as illustrated I provide spindle S) with a relatively large gear 3T which meshes with a relatively small pinion 38 on spindle 8. .I pulley 39, actuated by belt 40, serves to drive the belts. The unequal speeds or differential speeds at which thv belts are driven, serves to rub the heads, rictionally, as rubbing action might be applied between the two hands, in such a manner as to most efficiently hull the berries.

When I employ fabric belts, such as canvas, I may enhance this rubbing or lattritive action by forming ridges on the faces of the belts. In the form shown, I have provided the upper belt with longitudinally disposed ridges which may he forn'ied in any desired manner, said ridges being indicated at 41. 0n the lower belt I provide transversely disposed ridges 42.

In the present construction, the drive im parted to the belts will be applied to the inactive laps 19 and 20 and reliance is placed upon the' tension means, especially the rollers 21 and 22, to keep the abutting laps in proper tension and frictional engagement with each other. However, it will be seen, lbat it' the machine were turned npslde down, and the drive were imparted so as to apply leusion to the abutting laps 17 and 18, the

lnecessity for tensioning the rollers 21 and 22 might be avoided.

It is believed that the device of m inven tion will be fully understood from t e forel` their abutting areas with each other to thresh the interposed materials, and means for operating said belts to impart relatively dili'erent surface speeds to said adjacent laps, whereby the interposed material will v be subjected to sustained attritive action throughout its passage between said adjacent laps, substantially as described.

2. In a threshing machine, endless threshing belts, belt rollers holding adjacent laps ot' said belts in pressure engagement against each other throughout their abutting areas, and means for operating said belts at different speeds to hull the berries by attrition and gradually advance the material from the point at which it was received between said laps to a point of discharge, substantially as described.

Il. In a threshing machine, endless threshing belts, bight rollers supporting said belts with lapsof the latter in abutting relation to4 receive the stalks therebetween, idler rollers engaging said abutting laps to cause the latter to assume a sinuous course during their travel and throughouttheir abutting areas, and means for driving one of said beltsA at a greater speed than the other, sub stanlially as described.

4. ln a threshing machine, endless threshing belts, upper bight rollers for one belt,4

tritively hull the berriesysubstantially as described.

5. In a threshing machine, endless belts,`

rollers for supporting said belts withadjacent laps in abutting relation, one of said belts having longitudinally disposed attritive ridges and the other of said belts having transversely disposedattritive ridges, and means for driving sail belts at unequal the berries by attrition,

speeds, substantially as speeds to hull the berries by attrition, substantially as described.

6. In a threshing machine, endless exible threshing belts of homogeneous material, rollers for supporting said belts with adjacent laps in abutting relation, said belts havin attritive ridges and the remainder of said belts being continuously smooth, and means for driving said belts at unequal described.

7 In a threshing machine, endless threshin belts, bight rollers be ts with adjacent laps thereof in abutting relation to receive the stalks therebetween, and belt tensioning idler rollers en aging the butts of the abutting laps to ho d the same in pressure engagement, and means for driving said belts at unequal speeds to hull substantially as deof their length in opposition to mentioned means to urge said members into sustained engagement with each other throughout their coacting areas, and mechanism imparting differential motion to said members, substantially as described.

1l. 1in a threshing machine, coasting elongated {ieXible threshing members for threshing action on the material therebetween, means applying endwise tension to said members, means acting on said members transversely of their length in opposition to said first mentioned means to urge said members into sustained engagement with each other throughout their coacting areas and causing said members to take a sinuous form and mechanism` imparting differential motion to said members, substantially as described.

scribed. 1Q. 1n a threshing machine, eoacting 8. The herein described method of threshelongated iexible threshing members for ing grain, which consists, in progressively threshing action on material therebetween, advancing the stalks and heads, and in apmeans urging said members into continuous plying sustained friction continuously thereand sustained engagemeent from end to end and between their ends abutting members to take a sinuous form means applying tension endwise of sai members and coacting with said first named means to maintain sustained frictional engagement between said members throughout their length, and mechanism imparting differential motion tially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

ALFRED C. SANFORD.

to during such advancing movement to hull the berries, substantially `as described.

9. In a threshing machine, endless threshing belts, bight rollers supporting said belts with adjacent laps in abutting relation, devices engaging said abutting laps to hold the same in continuous pressure engagement with respect to each other, and means for driving said belts at different speeds to attritively hull the berries, substantially as described.

10. In a threshing' machine, coacting elongated flexible threshing members for threshing action on material therebetween, means applying endwise tension to said members, means acting on said members transversely and causing said Witnesses z O. V. MANInNG, E. BnoYLns.

to said members, substan-

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