US406385A - barnard - Google Patents

Description

(No Model.) 3 Sheets-Sheet. 1.

H. A. BARNA'RD.

GRAIN SGOURER.

No. 406,385. Patented July 2.1889.

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H. A. BARNARD.'

GRAIN SGOURBR.

No. 406,385. Patented July 2, 1889.

.f1 ttorney v WITNESSES UNITEDv STATES :PATENT OFFICE.

HEMAN A. BARNARD, OF MOLINE, ILLINOIS, ASSIGrNORv TO THE BARNARD di LEAS MANUFACTURING COMPANY, OF SAME PLACE. l

GRAIN-SCOU RER.

SPECIFICATION forming part of Letters Patent No. 406,385, dated July 2, 1889.

Application filed September 16, 188B. Serial No. 213,686. (No model.)

To all whom t may concern:

Be it known that I, HEMAN A. BARNARD, of the town of Moline,in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Smut-Mills; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of 1o reference marked thereon, which form part of this specification, in 'which- Figure l is a perspective view of a machine embodying my improvements. Fig. 2 is a vertical section through the fixed separatingtrunk, hopper, and screening-shoe. Fig. 3 is a vertical section of the machine, taken on the line-of the main shaft on line c Fig. 4. Fig. et is a vertical section of the same at right angles to Fig. 3 on line y y thereon, showing 2o the parts reversedindotted lines. Fig. 5 is a detail View of one of the journal-boxes and its connections for the main shaft. Fig. 6 is a transverse section of the fan-casing and fan. Fig. 7 is a vert-ical section showing a modifi- 2 5 cation, taken in the same plane as Fig. 4.

Fig. 8 is a detail sectional view of the shaking devices for shoeE.

This invention relates to improvements in grain-scourers, or smutters and separators;

3o and its objects are to construct a machine which will quickly and effectually remove foreign matters and impurities from the grain treated therein, and the mechanism of which may be driven at will in alternate directions,

and in which the discharge of grain may be readily adjusted or reversed, so as to conduct the. cleaned grain to either side of the mill.

The invention consists in the construction and novel combination of parts hereinafter 4o described, illustrated in the drawings, and

particularly specified in the claims.

Referring to the drawings by letter, A designates the main supporting-frame of the machine, of general rectangular shape, as shown,

and carrying the fan-casing a and the casing c', inclosing the scouring mechanism, hereinafter described.

B is the main or driving shaft, passing centrally through the fan and scouring casings 5o and carrying the driving-pulley l), which can be secured at either of its ends. The said pulley is driven by a proper belt from any suitable source of power. The shaft B turns in journal-boxes C, secured to the horizontal end bars C', bolted to the main frame A, andl 55 each box is composed of a rectangular block c, which rests between vertical flanges c on bar C', and a cap-piece secured to the block c over shaft B by proper bolts, as shown in Fig. 5. The boxes C are Yrendered horizon- 6o tally adjustable by means of screw-bolts c2, which pass through threaded openings in iianges c and impinge upon the ends of the boxes, and are made vertically,adjustable by means of the bolts c3, which pass through the outstanding i'langes of bars C and bear upon the bottoms of the boxes.

H is the fan secured to shaft B and rotating in its casing a, situated near one end of the main frame. The casing a is provided 7o with the exit-opening h, as shown in Fig. 1, for the escape of air from said casing. The blades h of fan I-I are secured to the-arms thereof, so that they will lie in planes passing radially through the main shaft, so that they will produce currents of air of equal force in the same direction, whether the fan turns to the right or to the left.

H is an air flue or trunk opening into the fan-casing around the shaft B, as shown in vv8o Fig. 3, thence extending upward to and bending horizontally over the top of the main frame.

I, Figs. 3 and 4, is a detachable casing secured to the top of the main frame at right angles to the horizontal portion of flue H. The casing I has at one end the downwardlyextending tube or trunk I depending fromv casing I on one side of the main frame A, and the casing is divided by ahorizontal lon- 9o gitudinal partition t' into upper and lower` compartments, as shown. The outer part of partition i' inclines' downwardly toward the front wall of the part I of the casing I, and forms, with the vertical outer wall of said part, the triangular settling-chamber 1l', having at its lowest point an opening closed by a valve d2, hinged at its upper edge. The outer part of wall I below said chamber inclines inward a short distance, and then runs loo vertically downward to meet the inclined inner wall 5 of the casing, as shown. By thisl construction I form a second settling-chamber I3 in part I below chamber '11', which is also provided with a hinged valve t".

The upper compartment of casing I is divided into upper and lower air-tlues .I J by the horizontal partition j, the outer end of which inclines downward a short distance into settling-chamber i', as shown. The airiiues .I J consequently communicate at their outer ends in the upper portion of said cham The lower compartment of casing I is divided into upper and lower air-fines K K by the horizontal partition 7.3, the outer end of which inclines downward a proper distance parallel with the inclined front end of partition il, as shown, so that the air-flues K K communicate at their outer ends above chamber i3, but below the bottom of iiue K', as shown. The iiue K is extended beyond the casing I opposite part I and communicates with the upper end of avertical trunk 7c', suitably secured to the main frame.

rlhe casing I and trunk 7c are secured to frame A in any well-known manner, so that they can be easily detached therefrom and from each other, when desired, for the purpose of reversing the position of these parts in relation to the rest of the machine, as shown in Fig. 4 by dotted lines, and hereinafter set forth.

`L L are similar opposite openings in the side walls of easing I, communica-ting with the flues J and K.

The air-trunk II connects at its upper horizontal end with the casing I around one set of openings I., as shown in Fig. 3, so that the filles J and K communicate with said trunk. \Vhen in this position, the openings I. on the opposite wall of casing I are closed by a suitable door I, as shown in Fig. 3.

Z is an opening in the roof of the flue J, forming a communication between said flue and a trunk D, which I will now describe. The trunk D is situated above casing I, and its vertical leg (Z is detachably secured in any suitable manner to said casing and communicates with the iiue J thereof, as described. The frontleg d of trunk D opens into a screenshoe E. This sereen-shoe is supported by suitable spring-straps e., (only one of which is showin) having their lower ends secured to opposite legs of frame A at one end thereof, and the screen is vibrated by a rod from an eccentric mounted on a shaft c, supported by and turning in bearings in the ends of standards rising from the top side rail of the main frame A, and rotated by means of a pulley c2 on the outer end of said Vsha-ft, driven by a belt c* from a pulley c4 on the end of shaft B. The upper open mouth of the screen-shoe E receives the lower end of the leg d of trunk D, and has secured toits edge, on one side of said leg, the chute F, which surrounds the outer and side edges of a hopper D', secured on the leg d of trunk D, as shown, so that grain passing from said hopper onto the chute will be directed into the shoe E, and the es cape thereof from the hopper D outside of said chute prevented, as shown in Fig. 2. The inclined bottom of chute F passes through a proper opening or recess j' in the inner side of leg d of the trunk, which opening is regnlated in size by means of a vertically-ad justable valve or slide j", as shown, so that the amount of grain escaping from hopper D can be regulated.

f2 is a cant-board extending from the same side of the shoe, parallel to but wider than the inclined bottom of chute F, so as to throw the grain upon the head or upper part of the oppositely-inclined screen or sieve G, secured in the upper end or mouth of the screen-shoe.

G is a screen situated below the screen G, of finer mesh than the latter and inclined in an opposite direction, and extending the entire length of the shoe E.

g is a cant-board secured beneath and parallel to the screen G, but of less length than the latter, and adapted to deliver the grain which passes through screen G upon screen G at its upper end.

G2 designates a still finer mesh screen, below and parallelto screen G', but extending only about half-way across the shoe, as shown, its inner end heilig secured to a suitable crosspiece secured centrally of the shoe, as shown in Fig. 2.

The hopper D being filled with wheat or other grain and the machine put in motion, the vibrations of the shoe will cause the wheat to fall from the chute F onto the cant-board f2, and is directed thereby to the head of the receiving-screen G, through which itfalls onto the cant-board g. The oats pars from screen G into the inclined gutter g at the end of the shoe, as shown in Fig. 2, whence they are conducted to any proper receptacle. From board g the wheat falls upon screen G', passing therethrough, and any remaining coarse impurities are directed into the gutter g3 on the lower end of the screen to be conducted out of the way. The wheat falls from screen G onto screen G2, and any very fine impuri ties or grit pass through the screen and fall upon a chute g4, and are conducted out of the machine. The wheat, however, passes oit' screen G2 upon a chute g2, which directs the wheat into a conducting-tube g5. Any wheat which may roll so far down screen G as to miss falling upon screen G2 will fall upon the chute g2 and be delivered to tube g5. The spout g5 conducts the wheat to the scouringcase, hereinafter described, the lower end'of said spout opening thereinto, as shown in Fig. The leg d of trunk D, that receives the wheat from the hopper, is open for the admission of air as well as for the passage oi the grain into the screen-shoe.

From the foregoing description, and by reference to Figs. 2, 5, and 4, it will .be observed y that the fan II causes two distinct currents of air to enter the machine, one of which currents passes up through the leg d of trunk IOO IIO

D, outward through fiue J, over the settlingchamber i', inward through flue J', and then through opening L and down the flue I-I' to the fan. The other current passes up through flue lc', outward through the flue K', over settling-chamber i3, inward through i'lue K, and thence through the openingL and down the flue H' to the fan. The common exit of both currents is through the opening h in the fancasing, as shown in Fig. l. Itis evident that' the upper current in entering the separatingtrunk D passes through the grain falling from the hopper, and carries With it the dust and other light particles Which collect in the settling-chamber t" until their Weight is sufficient to force Open the valve i2, when they fall out, and the suction of the current again closes the valve. The settling-chamber 3 and valve i4 act similarly for the second current, which collects the dust from the Wheat passing from the scourer, as hereinafter shown.

The casing d' has secured Within it the case N for the beater Q, forming the scouring mechanism. The case N is preferably formed on the frustum of a cone, and is made, preferably, of chilled cast-iron, provided With numerous perforations on itsY periphery, and the main shaft B passes axially through it, as shown in Figs. 3 and 4.

P is a flanged opening in the loWest part of the periphery of the case N and adapted to connect with the upper end of the grain-de livering tube p. The sides of casing a' below case N converge longitudinally inward, as at n n, Fig. 4, andare each provided With a similar opposite opening O, adapted to be closed by a suitable door or cover O. The tube p has its inner end connected with the case N, as described, and extends thence through the opening O in the Wall n of casing a on the side adjacent to trunk k' and connects With the trunk, as shown in Fig. 4.

The beater or scouring-cylinder Q is of the gen eral form of a cone-frustum, and is secured on shaft B Within case N. The beater is provided with the longitudinal equidistant pe-V ripheral flanges q, each triangular in crosssection and having an equal inclination on each side, so that they will have the same effect, Whatever be the direction of rotation of the beater. The beater Q is preferably cast in one piece With its flanges q, as shown in Fig. 4.

The casing d' communicates with the faneasing a through opening 03, so that the fan produces a third current of air, which passes up through the lower open end 02 of casing a', aroundthe case N, through side openings o3, into the fan-casing, as shown in Fig. 3. The sides of fan-casing d converge toward opening h, as shown in Fig. 6, so that there will be no change in the direction of the air-currents if the rotation of the shaft B is reversed. The grain falling into spout g5 from shoe E is delivered into the scouring-case N, as shown in Fig. 3, and is violently agitated by the beater Q. The dust and other light particles which might adhere to the grain are driven through the perforations in case N into casing a', and carried by the air-current therein into the fan-casing a. The grain descending through pipe p into the separating-trunk k meets the current of air passing therethrough, and any remaining dust and light particles, if any, are carried to the settling-ehamber i3 and disposed of as described.

R is a valve in flue J, for regulating the upper air-current. The said valve is operated by the lever r on its hinge-rod outside the casing and can be held in position by means of a curved slotted bracket r' and thumb-nut r2. The lowercurrent is regulated by a similar valve S in the flue K, controlled by a lever s and set by means of a bracket s' and thumbscrew s2.

Vhen it is desired to have the grain delivered from the opposite side of the machine from that described, as may be desirable in order to economize room or to adapt the machine for use in connection with other milling devices, the casingl is disconnected from the trunks D and 7c' and from the fiue H' and removed from the machine. The trunk lc' is also disconnected from pipe p and removed. The casing I is then taken and placed on the side of frame A formerly occupied by trunk la', and again connected with thev trunk D and air-tube H', connecting With the former by opening ZV', as before described, and with the latter by means of its openings L L', Which are unclosed, and the cover Z removed and used to close the openings L L, which then occupy7 the same relative position to parts D and H as was formerly occupied by openings L'. The trunk k is then attached to the machine in the former position of casing I and connected therewith as before. The tube p is reversed and extended through the opening O in the Wall n opposite its former passage, the same being properly closed.

It is obvious from the foregoing that the machine is readily and quickly reversible for the p'urpose described, and therefore the location of the machine need not be considered, as it may be placed in spots unsuitable for machines running in one direction only; also, should the driving-belt become slack, it could be crossed Without interfering With or altering the action of the machine, although the motion of the fan and beater is thereby reversed.

If desired, the screen-shoe E can be dispensed with and the grain delivered direct from the hopper D' on the leg d' of trunk D into the spout g5, as is obvious.

If but one separation is desired, the trunk D, tlues J J', settling-chamber i', and screenshoe E are dispensed with and the grain de- IOO IIO

livered directly into the spout g5, reducing p trunk I), the screening-casing, the fan and trunk II', with t-he detachable and reversible casing I, containing the air-tlues and the trunk K', substantially as and for the purpose set forth.

2. In a grain-separator and slnutunachine, the combination of the main frame, the fau, the scouring-cylinder and its case, the reversible casing' Containing the air-fines and set thug-chambers, with the reversible vertical air-trunk connecting with said casing, all sub stantially as and for the purpose specified.

In a grain-separator and smut-machine, the combination, with the fan, the fan-casing, the main shaft, the casings, and beater mounted Within said casings upon the main shaft, of a reversible casing containing the air-iiues and. settling-chambers connecting' with the fan-casing, and a vertical air-trunk connected to said air-fine easing and to the beater-casing,` and reversible with the air-flue casing, all constructed and adapted to operate substantialh7 as and for the purpose set forth.

4. The combination of the main frame, the scourer-casing, the reversible casing1 I, a vertical air-trunk 7o opposite to and reversible with casing I, and a detachable spout P,With the fan adapted to rotate in either direction, substantially as specified.

5. In a graiirseparator and smut-machine7 the combination, with the main frame, its shaft, the fan and beater mounted on the same, and the perforated scouring-case surrounding the beater, of reversible air-fines, reversible separating-trunk, and the reversible delivering-tube from the scouring-ease, all substantially as described.

VG. In a grain-separator and smut-machine, the, combination, with the fan and beater mounted upon the main shaft Within suitable casing-s, of the reversible airf1ue casing and trunk, all constructed and operating substantially as and for the purpose set forth.

7. The combination, with the fan mounted on the main shaft and its casing, and the reversible air-flue easing I and trunk 7c', of the conical perforated scouring-casing adjustabl)T connected with air-trunk la', and the conical beater Q, mounted on the main shaft Within the scouring-casing, and provided with peripheral angular longitudinal flanges q, all substantially as and for the purpose specified.

S. In a grain-separator and smut-machine, provided with a fan and beaer mounted on the main shaft within suitable casings, and an air-trunk D, a casing I, adjustable to either side of the machine, and provided with the air-nues K K and J J, and settling-ehambers il i3, substantially as described, and the trunk k', with the casingl I, all constructed and adapted to operate substantially as and for the purpose set forth.

In testimony that I claim the foregoing` as my own I affix my signature in presence of two witnesses.

IIEMAN A. BARN/XRD.

Vitnesses:

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