US1446527A - Crain separator - Google Patents

Description

Feb. 27, 1923.

P. H. VAUGHN GRAIN SEPARATOR 1, 1920 5 sheets-sheet l Filed Mar.

lF b. 27, 1923. 1,446,527

P. H. VAUGHN GRAIN SEPARATOR Filed Ma 1, 1920 s sheets-sheet 2 Feb. 27

P H' VAUGHN GRAIN SEPARATOR 5 sheet et a 9 Filed Mar,. 1

u luul EEE H.

.Fatenteol Feb. 27, 1923..

U a s PATRICK H. VAUGHN, or Melanie, MINNESOTA.

GRAIN snranaron.

Application file'dirlarch 1,

To all whom it may cancer-1t:

Be it known that I,-PATR1CK H. VAUGHN, a citizen of the United States, residing at ld'orrisin thecounty of Stevens and State of Minnesota have inventedv certain new a -d useful improvements in Grain Separators; and I do hereby declare the following to'be' a' full (,l'dill',dlld exact description of the invention; such as will. enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to improvements in grain separators of the type disclosed and claimed in my U. S. Letters' Patent #1',321',265,-issued November 11', 1919.

To the above end, the invention consists of the novel devices and combinations of d vices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views;

Referring to the drawings:

Fig. 1 is a side elevation of the improved grain separator with some parts broken away;

Fig. 2 is a view of the same in a central vertical section;

1*igj3is a fragmentary transverse section takenon the line 3-3 ofFig. 2;

Fig. 1 is a fragmentary detail view on the line 4 -4; of Fig. 2; and

Fig. 5 is -a fragmentary view in central vertical section illustrating adifferent method of operating the sci'eeningsieve and with the scalping sieve removed.

The frame of the improved grainseparator includes four legs arranged in front and rear pairs 6 and 7, respectively. The

taken legs of each-pair are rigidly connected at their lower ends by relatively wide transverse boards 8. The upper ends of the legs 6 and 7 are rigidly connected on each side of the separator by bolting the same to t'hesides of a feed-hopper 9. The legs 6 and 7 are further connected on each side of the separator by a relatively narrow board 10, and' a" relatively wide board 11, the' former ofwhich islocated just under the hopper 9' and is inclined toward the rear of "the's'eparator, and the latter of which is located just above the transverse boards 8 and also inclined toward the rear of the separe-tor.

The two boards or transverse members 1920. Serial N0. 362,366.

which constitute the bottom of the hopper 9,. are spaced at their lower adjacent edges to afford a feed-opening 12, located-at substantially the center of the separator. A feed-roller 13 of the type disclosed and broadly claimed in my (o-pending U. is. application, filed Dec. 20, 1919, under S. 346,326, is located at the feed-opening 12 and its shaft is journaled in bearings 14; secured to the outer faces of the sides of the hopper 9. An adjustable gate 15 is pro- Vided for regulating the flow of grain from the hopper 9.

Mounted in the frame, at the front there- OfylS a fan casing 16 having a long-roan wardly projecting throat 17, andwhich casing and throat are located between and. rigidly secured to a pair of laterally spaced bars 18 the rear end portions of which are pivoted at'19 to the lees 7 and the front end portions of which are rigidly and; adjust-' ably connected by nut-equipped bolts 20, which extend through slots 21 in said legs 6 to permit a slightvertical adjustment of the fan casing 16. Mounted in the fan c'as ing 16 is a' fan 22, the shaft of which is journaled in bearings 23 secured to the bars 18.

Rigidly secured to the projecting righthand end of the, shaft of the feed-roller 13 is a large hand-crank-equipped sprocket wheel 24-. A spr c ret chain 25 is arranged to run over the sprocket wheel 24- and a relatively small sprocket wheel 26, secured to the projecting right-hand end of the shaft of the fan 0n the other end of the shaft of the fan 22, is secured asecond sprocket wheel 27. Both sprockets'wt and 27 are provided with wrist pins 28, for a purpose that will presently appear. Located between the hopper 9 and fan casing 16 is a shoe'29, the front end of which is suspended fronrthe hopper by a pair of links 34). The rear end of the shoe 29'is supported by the upper or short ends of a pair of vertically disposed levers 31 interinediately fulcrumed'at 32 on the bars Mounted inthe shoe29 is a gang of sealp in; sievesS-fl. under which is an imperferate deck-3t secured to the shoe 29'with s deliver -J end terminating under the receiving portion of the lowermost sie've of the gang $38. Secured in the shoe 29, at the receiving end of the uppermost sieve of the gangSB, is an img jerforate deck 35,-which.- as shown, is'an independent member-from the frame of said uppermost sieve, but in some instances, might constitute theupper' transverse portion of said frame. Vibratory movement is imparted to the shoe 29, through the levers 31, by a pair of operating bars 36 having one of their ends secured to the wrist pins 28 and their other ends pivotally connected to the lower or long ends of said levers 31, y

The rear end of the top plate of the fan casing throat 17 terminates substantially under the delivery end of the "deck 34 and is curved slightly downward to afiord a defleeting flange 37. Extendingupward and forward from the deflecting flange 37 is a deflecting board 38 secured to the bars 18. Secured to the casing throat 17 is a forwardly inclined deck 39 spaced apart from the flange 37 to afford therebetween a passageway 40 for the grain precipitated from the gang- 88. Grain entering through the passageway 40 will be precipitated onto an underlying adjustable deflector 41 arranged to direct the said grain toward the front of the machine. The rear end of the bottom plate of the throat 17 terminates short of .the deflector 40 to afford therebetween a relatively wide grain passageway '42, and

which rear end portion of the said bottom plate is curved upward to afford a deflecting surface 43. 1

Anadjustable damper 44 is mounted in the throat 17. Underlying the fan casing 16 and its throat 17 is a lower rearwardly inclined sieve 45, mounted for reciprocatory movement on cleats 46 secured to the frame boards 11. Underlying the sieve 45 and cooperating with the under face thereof, is a multiplicity of transverse cleaning slats 47, which are rigidly connected by a plurality of longitudinal bars 48, which, in turn, are

secured to a plurality of transverse bars 49,

the ends of which are removably seated in the cleats 46.- Reciprocatory movement is imparted to the rear sieve 45 from the levers 31 by a rock-shaft 50 and a rod 51. The ends of the rock-shaft 50 are pivoted in the levers 31,-and one end of the rod 51 is inserted through the intermediate portion of the rock-shaft 50 and is adj ustably secured thereto by a pair of opposing nuts 52. The other end of the rod 51 is bent laterally upward to form 'a pivot, which is mounted in a bore formed in'the rear transverse member of the frame of the lower sieve 45.

Above the shoe 29, is a downwardly and forwardly inclined upper screening sieve 53, and it is important to note that this sieve is inclined in an opposite direction from the gang of sieves 33. The screening sieve 53 is mounted for reciprocatory movement that is oblique to the movement of the shoe 29 on cleats 54 secured to the boards 10. Re-

ciprocatory movement is imparted to the screening sieve from" the shoe 29, v as gitudinally spaced holes inthe levers 55 to permit said rock bar to be adjusted toward or from the fulcrums of the levers 55. v

One end of the link 58, which, as shown, is in the form of arod, is inserted throughpn Y bore in the'intermediate portion of the rock 1 bar 57 and adjustably secured thereto by a pair of opposing nuts 59, which have screwthreaded engagement therewith, to vary the "operativelength of said link. The other end of the link 58 is bent laterallyv downwardto forma pivot pin 60 turnably mounted in a bore in the uppertransverse memberof the frame of the screening sieve 58.. Thezlower ends of the lever 55. are pivotally connectedtof the sides of the shoe 59 byv a pair of I links 61.

' The connections just described, for imparting thereciprocatory. movement of the screening sieve 53 from the shoe 29, are such@ as to move said screening sieve simultaa direction. Underlying thev screening. sieve '53 is a multiplicity of laterally spaced trans-z verse cleaning bars 62 which co-operate with:

the under face of said sievetokeep the: same :neously with the shoe 29,. but .in an opposite clean. These cleaning bars 62 are-secured to longitudinally extended. bars 63, which, in turn, are secured to bars'l64, the ends Off: which. are mounted in seats formed in the cleats 54 and removably' support the cleaning bars 62 from the frame boards-10.- .Ob' viously, by adjusting the nuts 59, the operative length of the link 58 may be changed, at will, to vary the position ofthe screening sieve 53 on the cleaning bars 62. Q

The delivery end of the screening sievex5i-l terminates over the imperforate deck .35.. Underlying the screening sieve 53 'isa. pan.

65 carried by the shoe 2i) and arranged to deliver, to the left-hand side. of the'separator, materials precipitated from said;

screening sieve. hopper 9 and cleaning sieve 53, is a scalping. sieve 66. which. as shown. is supported upon and detachably secured to the frame of said cleaning sieve. it its delivery end extended beyond the: de livery end of the cleaning sieve 53 to sup Interposed between the:

This scalping sieve 66 has port and hold a transversely inclined'trough 67 arranged to chine.

Referring in Fig. the connections 55 to 61, inclusive,

deliver to one side ofthesmanow to the construction shown.

..the same direction with the shoe 29. To

thus reciprocate the screening sieve 53, the levers at their upper-ends, are pivoted to the sides of the hopper 9 and the lower ends of said levers are pivotally connected to the sides of the shoe 29 by the links 61. The links 61 may be attached to the levers at different longitudinally spaced points .to vary the swinging movement of said levers. The rock bar 57 'is intermediately pivoted to the levers 55 w1th freedom for adjustment longitudinally in respect thereto.

Operation.

The materials to be separated are placed in the hopper 9, as indicated at a, and the mo able parts of the machine operated by turning the hand-crank-equipped sprocket wheel 24 in a direction to cause the feed-roller l3 and fan 22 to rotate, as indicated by arrows marked on Fig. 2. Under the rotation of the feed-roller 13, a constant and even feed of materials, from the hopper 9 to the screening sieve 53, is obtained. The sca-lping sieve 66 is provided to remove from the materials a, all coarse materials, such as sticks, straws and the like, and deliver the same to one side of the machine through the trough 67. The reciprocatory movement of the screening sieve 53 causes the mate-rials a thereon to travel downward. During this travel of the materials a on the sieve all dust and small foul seeds are released therefrom, screened through said sieve and precipitated into the pan and delivered at one side of the separator, as indicated at I).

By the use of the rake bars 62, it is possible to use a wire mesh screen for removing dust and small foul seeds from the materials a. By thus first separating the dust and small foul seed from the materials a, the machine is free from dust when said materials are subjected to the air blast after passing through the scalping sieve. It also immediately relieves the machine from handling such materials as removed by the screening sieve 53. Materials a, tailed over the screening sieve 53, are precipitated onto the deck 35 and the direction of travel thereof reversed by the deck from the front to the rear of the machine.

From the deck the remaining materials a, to be separated, are delivered to the gang of sieves 33, and the streams of grain passing downward through said gang are indicated at c. All coarse material, not removed by the scalping sieve 66 from the small seed grains, such as wheat, barley, rye, flax, etc., will be deposited at the rear of the machine by the gang of sieves 33, as indicated at (Z. The streams of grain c,

from the gang of sieves 33, are deposited on the deflecting board 38 and deck 39, from whence they will be delivered through the passageway 40, with'the assistance of the deflector 37, and precipitated onto the adjustable defiector 41. Atthis time, the grain c is subjected to the under-shot'blast of air from the fan 22, which removes therefrom all materials not desirable for seed. Of course, by regulating the damper M, the amount of such materials removed from the grain may be varied, at will. From the deflector ll, the grain c is precipitated directly onto the sieve 45, which again changes the direction of travel of said grain from the rear to the front of the machine "and removes the oats therefrom, as indicated at 6. By independently mountingthe screening sieve 53 in respect to the shoe 29, a very smooth reciprocatory movement is imparted thereto, which is highly desirable in the separation of grass seed, clover seed, and the like. As previously stated, the connections shown in Fig. 2 impart a simultaneous re verse movement to the screening sieve 53 in respect to the shoe 29 and, by shifting the fulcrums 56 on the levers 55, the throw of said sieve may be varied, at will, or the rock bar 57 may be longitudinally adjusted on the levers to vary the throw of the sieve 53. In the arrangement of the operating connections for the screening sieve 53 in Fig. 5, the throw of said sieve may be varied in respect to the shoe 29 either by raising or lowering the connection of the links 61 with the levers 55, or raising or lowering the rock bar 57 on said levers, or both of said adjustments may be made.

What I claim is 1. A grain separator comprising a frame, a feed hopper mounted at the top thereof, an inclined scalping sieve slidably mounted beneath the hopper and receiving therefrom a fine screening sieve slidably mounted beneath said scalping sieve, a stationary cleaning device disposed beneath said fine sieve and closely adjacent thereto, a swinging sieveequipped shoe to which said fine sieve delivers mounted below the same and a laterally delivering pan carried by said shoe and extending beneath said fine screening sieve.

2. A grain separator having in combination, a frame, a feed hopper at the top there of, an inclined scalping and a fine screening sieve superposed and slidably mounted as a unit beneath said hopper, a laterally discharging trough carried by said scalping sieve, a removable cleaning device carried by said frame beneath said fine screening sieve, a swinging sieve-equipped shoe mounted below said sieves and inclined oppositely thereto onto which the fine sieve discharges, and a laterally discharging pan carried by said shoe extending beneath said fine screening sieve.

3. A grain cleaner having in combination, a frame, a hopper at the top thereof, a scalping and fine cleaning sieve slidably mounted below the hopper,- a cleaning device beneath ,the latter and in substantial contact there with, a swinging sieve-equipped shoe mounted beneath said sieves and carrying a pan- ,tact with the bottom of said latter screen.

at. ihWl'lGilt cleaner havingin combination, a frame, a hopper disposed at the top thereof, a scalping sieve and a fine screening sieve slidably mounted adjacent said hopper for srenioving the coarse and fine refuse respectively, de jiending links at one side of said top 01"? said lever for removing foul and foreign seeds, a sliding sieve bt'lOW said shoe connected to said levers between their pivot joints and the'lovver ends thereof for'removing oats from the Wheat, a driving "shaft;

and a crank operated pitman connected to the lower end of said levers to reciprocate said shoe and last mentioned. sieve and driven by said shaft. p

In testimony whereof I aliix my signature in presence of two Witnesses.

PATRICK H. VAUGHN.

Witnesses: v

WINIFRED I. HARD, HARnY D. Knieonn.

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