US407542A - Territory - Google Patents

Description

3 Sheets-Sheet 1.

(No Model.) I A. M. MEGKLEM.

- GRAIN SEPARAIOR. No. 407,542. Patented July 23, 1889.

INV'ENTOR N S E s BY ATTORNEYS.

N4 PETERS Hwlolidvognphr. Walllilqtm. ILC.

(No Model.) 3 Sheets-Sheet 2. A. M. MEGKLEM.

GRAIN SEPARATOR. No. 407,542. Patented July 23, 1889.

WITNESSES: INVENTOR:

ATTORNEYS.

N. Fzrzns; Pholo-Lmlognphan Wash ngton, at;

(No Model.)

Sheets-Sheet 3. A. M. MEGKLEM.

GRAIN SEPARATOR.

No. 407,542. Patented July 23, 1889.

ATTORNEYS.

N. FETERS PhnmLhhagnphar, Waihington. n4 l:v

UNITED STATES PATENT OFFICE.

ARCHIBALD M. MECKLEM, OF OOLFAX, WASHINGTON TERRITORY.

G RAlN-SEPARATO R.

SPECIFICATION forming part of Letters Patent No. 407,542, dated July 23, 1889.

Application filed November 7, 1888- Serial No. 290,191. (No model.) 7

To all whom, it may concern:

Be it known that I, AROHIBALD M. MECK- LEM, residing at Colfax, in the county of NVhitman and Territory of WVashington, have invented certain new and useful Improvements in Grain-Separators, of which the following is a specification. 1

My invention relates to grain-separators; and it consists in the novel construction and peculiar combination of parts, as will be hereinafter fully described in the annexed specification, and particularly pointed out in the claims, reference being had to the accompanying drawings, in which- Figure 1 is a side view of a grain-separator embodying my invention. Fig. 2 is a longitudinal section thereof. Fig. 3 is a transverse section on line 3 3, Fig. 2. Fig. 4 is a detail View hereinafter referred to. Fig. 5 is a detail view of the middle sieve. Fig. 6 is a detail View of the rack, and Fig. 7 is a detail view of the feed-opening mechanism Referring to the accompanying drawings, A represents the main casing or frame of the machine, in one end of which is mounted the fan or blower B, of ordinary construction.

0 indicates the feed-hopper, which is disposed about centrally of the upper edge of the machine, and which is provided with an adjustable feed-gate c at its lower edge or opening, the construction of which will be explained farther on.

Passing transversely across the machine and through the discharge-opening is the drive-shaft D, which is provided with an agitator-wheel d, as shown.

E indicates the main drive-wheel, which is secured upon the outer end of the shaft D, and is provided with an operating-handle c.

F indicates the upper shoe, which is provided. with a tin angle-sieve of a well-known construction.

f denotes the incline bottom of said shoe, the inner or lower end of which is open, as at f. This shoe is pivotally supported in the frame by the hangers G, which are secured one to each side of the shoe E, as shown at g. These hangers are secured to short links H at their upper ends, which are pivoted to the casing, as at h, and at their lower ends they are pivoted to crank-arms I, projecting from a rock-shaft J, journaled transversely in the casing, which shaft projects to one side of easing, as at j, and has secured upon such end an upwardly-projecting arm K, provided with a friction-roller k in its upper end, said arm being disposed close to the inner face of the drive-wheel E, as will be clearly seen in Fig. 3 of the drawings.

L are stops or projections secured upon the inner face of the wheel E, preferably one upon each spoke e of the wheel, as shown. These projections are so arranged that they will successively come into contact with the upper end of the arm K.

M M are castings secured to the sides of the casing just above the shoe F, which are provided with projections m m. (See Fig. 4.) Coiled springs N are secured at one end to each of the project-ions m m, and at their opposite ends to inwardly-proj ectin g portions g g of the hangers G. The upper connection of each of the springs to the projections m is preferable made adjustable by means of the short screw-threaded stem 1, to which the spring is secured, which passes through an aperture 2 in the projection m and has secured upon its outer end the adjusting thumb-screw 3, as shown. By this construction the tension of the springs may be readily adjusted.

By reference to Fig. 2 of the drawings it will be seen that the hangers are arranged diagonally upon the shoe F, and that the castings M are arranged in the same aligning plane. By this arrangement it will be seen that when the shoe F is pulled down in a manner that will be presently described the tension on the spring will be in an almost direct line.

0 indicates the middle shoe, which is suspended from-two cross-bars 0 0 by means of the links 0 o. In suspending the shoe 0 it is hung slightly to one side of the casing, as shown in Fig. 3. This shoe is provided with a square-meshed screen and a sheet-iron bottom 0 ,which inclines toward one side, and is provided at its lower edge with a dischargespout 0 which projects through an opening 5 in the side of the casing, from which the screenings are discharged to the side of the machine, as shown.

The upper end of the shoe 0 projects under the discharge end of the upper shoe and from it receives the grain. In bearings 6 6, projecting to one side of the casing, is journaled a vertical rocking shaft '7, which is provided with a horizontal arm S,which extends through an opening 9 in the casing and is connected to one side of the shoe 0, and an arm or plate 10 projects outwardly from said shaft and has connected therewith a rod 11, the opposite end of which is connected with a gear-wheel 12, mounted upon the outer end of the fanshaft, as shown. By this construction it will be seen that when the machine is in operation the shoe 0 will receive, through the connection with the rock-shaft '7, an approximately vertical and lateral movement-21 8., it will rise going one way and fall as it returns, and by the movement of the arm 8 will at the same time be also moved laterally.

The lower shoe P is constructed similar to those now in use and is hung upon the arms 19 p, which are pivoted at their upper ends, as at p p. by means of a rockshaft P journaled transversely in the casing near the lower end of the shoe, which is provided with crank-arms 19 which are connected by rods 1)" with the shoe.

p is an arm fixedly secured upon the projecting end of the shaft, to which is adj ustablysecured the lower end of a connecting-rod p, which is connected at its upper end to a gear-wheel Q, journaled to the side of the easing and meshing with the wheels E and 12.

R denotes the rack or screen-cleaner,which vis disposed below and in contact with the screen in the lower shoe. This rack consists of the central transverse bar 0, the longitudinal side bars 7', and the cross-bars 9' as clearly shown in Figs. 3 and 0 of the drawings. This rack is centrally supported upon a pivot-bolt S, which is screw-threaded, and which passes through a screw threaded aperture 3 in a cross-bar S, secured to the frame. By this construction the rack-bar may be adjusted to or from the screen, as desired, and by its peculiar support the said bar will always accommodate itself to the diiferent motions of the shoe P.

T is a screen-board arranged below the shoe P and rack R to run the screenings under the machine.

The feed-gate 0, before referred to, is pivoted at its inner end upon a cross-rod, the end of which is extended, as at c, which has secured upon said end a hand-lever, the upper end of which engages a rack-bar 0 By this construction the size of the feed-opening in the hopper may be regulated.

U denotes a tail-board pivoted in the rear end of the machine,which can be swung into position so as to 'run what is thrown off the upper shoe back into the mill.

The operation of the machine is as follows: The feed-opening in the hopper being properly adjusted, grain is admitted from the hop- Motion is imparted to the shoe P.

per on the angle-screen in the upper shoe. The drive-wheel being then turned, the several projections on the inner face of the same will successively strike the upper end of the arm K, each of the projections moving the arm backward until it (the stop) passes over the end of the arm, said movement of the arm rocks the shaft forward and downward and draws the hangers, with the shoe F, downward. As soon as each of the projections passes the end of said arm K the spring N will. immediately jerk the shoe F back again until it strikes the projection m, which acts as a stop. In the present instance I have shown eight projections on the wheel E. It is there fore evident that there will be eight backward and forward throws of the shoe 1* to each revolution of the wheel E. Thus it will be seen that the said shoe is continually being swung backward and forward with quick sudden jerks, which motion is more advantageous for cleaning anglesieves than the means new in use for accomplishing the same results on machines of similar character. The grain then discharges at the forward end of the shoe upon the middle sieve, which is vibrated in a manner previously described,the screenings from the same passing to the side of the machine. The grain then falls upon the lower screen. From thence it passes out of the machine, the

screenings which fall on the board U being run under the machine.

Motion is imparted to the upper, middle, and lower shoes and to the shaft ina manner that will be elearl y understood by reference to the drawings.

If desired, the stops and the arm K may be made adjustable, and the length of the movement of the shoe F may thereby be increased or decreased when desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The upper shoe provided with a sieve adapted to receive the grain from the hopper, said shoe pivotally hung at its upper end in the frame, a rock-shaft disposed transversely in the machine at the lower end of the shoe, a crank-arm I, connecting said shaft with the shoe, and an upwardly-prejecting arm K, secured upon the outer end of said rock-shaft, in combination with the driveshaft D, the drive-wheel E, mounted thereon, provided with a series of project-ions L, adapted to successively engage and pass the said arm K, and a spring attached to the frame and to the upper edge of the shoe, whereby said shoe is suddenly drawn backward and upward when each projection L passes by the arm K, substantially in the manner and for the purpose described.

2. The COH'lblllZttlOl], with the shoe F, the hangers G, secured thereto and arranged diagonally across the same, and link-con n ections H 11 between the upper ends of said bars and the frame, of a rock-shaft J, journaled trans- ITO versely in the frame near the lower end of the shoe F, a crank-arm I, secured to said shaft and connected to one of the arms G, a projecting arm K, secured upon the outer free end of said shaft, a spring secured to the shoe and frame to normally draw said shoe backward, and means, substantially as shown, for oscillating the arm K, all arranged substantially as shown, and for the purpose described.

3. The combination, with the shoe F, pivotally hung at its upper edge in the main frame, a rock-shaft J, journaled transversely in the frame near the lower end of said shoe, a crank-arm connection between said shaft and the lower end of the shoe, and means, substantially as shown, for rocking the shaft, of a spring secured at its lower end to the upper edge of the shoe, its upper end secured to the frame above the rear end of the shoe, said spring normally drawing said shoe in an upward and rearward direction, and fixed stops m, secured to sides of the frame above the upper edge of the shoe, as shown, and adapted to abruptly limit the rearward and upward movement of said shoe after each successive rocking of the shaft J, substantially in the manner and for the purpose described.

4. The combination, with the shoe F, bars or hangers G, secured to the sides thereof, said bars provided with lateral inwardly-pro j ecting members g at the upper ends thereof,

links H, pivoted to the frame and to the bars G, a rock-shaft J, j ournaled transversely in the frame near the lower end of the shoe, and a crank-arm connection between the bars G and the shaft J, of the castings M, secured to the sides of the frame, thelower ends providedwith projections forming fixed stops m, adapted to engage the projecting members g of the bars and limit the same in the rearward movement thereof, and the springs N, secured at their upper ends to the castings M, their lower ends connected to the members 9 of the bars G, and means for rocking the shaft J, substantially as shown, and for the purpose described.

5. The combination, with the shoe P, hung in the lower portion of the frame, provided with a screen of the rack B, said rack centrally supported upon a pivotrbolt S, said bolt supported in the framing of the machine, substantially as and for the purpose described.

ARCHIBALD M. MECKLEM.

\Vitn esses:

E. W. TALBOTT, A. A. WILsoN.

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