US333420A - James mcgill - Google Patents

Description

(No Model.)

J. MoGILL.

GRAIN SGOURE'R.

No.333,420; Patented Deoi 29, 1885.

N. PETERS, Pmw-Lnnugnpher. ,vnsningmn. D. c4

UNITED STATES PATENT OFFICE.

JAMES MOGILL, OF LOCKPORT, NEW YORK, ASSIGNOR TO THE RICHMOND MANUFACTURING COMPANY, SAME PLACE.

GRAIN-sooURER.

SPECIFICATION forming part of. Letters Patent No. 333,420, dated December 29, 1885.

Application filed September 1, 1885. Serial No. 175,946. (No model.)

To all whom t may concern.-

Beit known that I, JAMES McGrLr., of the city of Lockport, inthe county of Niagara and State of New York, have invented a new and kind in which the air-current passes fromthe scouring-case to the eye of the fan by a wind trunk or passage located between the scouring-case andthe fan. The spindle upon which the beaters, brushes, or other scouring devices and the fan-blades are mounted also passes through this air trunk or passage and is supported in abearing which islocated within said Y air trunk or passage. This arrangement of said bearing not only renders it difficult to examine and properly lubricate the same, but it also involves the danger of iire or explosion, as the dust particles carried by said air-current come in contact with said bearing and are liable to become ignited when said bearing becomes heated from lack of oil or other causes.

The object of my invention is to overcome this difficulty by protecting said bearing against contact with the dust-laden air-current; and my invention consists to that end of the improvements which will be hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional elevation of a grain scourer and separator provided with my improvement. Fig. 2 is a vertical section of the upper portion of the machine at right angles to Fig. l. Fig. 3 is a horizontal section in line x x, Fig.

2. Fig. 4 is a longitudinal cross-section of the protecting-hood on an enlarged scale. Fig. 5

is across-section of the same in line yy, Fig. 4. Like letters of reference refer to like parts in the several iigures.

A represents the stationary frame of the machine; B, the perforated scouring-case, and

- C the beaters, brushes, or other scouring devices arranged within the scouring-case and mounted on the vertical spindle c.

D is the tight case inclosing the perforated scouring-case, and d is the ascending air-pas-v sage between the scouring-case B and the inclosingcase D.

E represents the fan-blades secured to the upper portion of the spindle c, and F represents the fan-case inclosing said blades.

f represents the eye formed in the bottom of the fan-case.

G represents the air-passage leading from the upper end of the passage d to the eye f, and formed by inclosing the space between the top plate, g, of the scouring-'case and the bottom of the fan-case. The plate g is circular in form and leaves openings g in the cor- 1 spindle o between the scouring-case and the fan. The bearing h is formed on or secured to a horizontal bridge-tree, H, which is attached to the upper portion of the frame A.

I represents a hood or cover, which covers the bridge-tree H and bearing hand extends horizontally through the air-passagc G and rests on the top plate, g, of the scouring-case. The hood I excludes the dust-laden air-current rising through said passage from the bearing h. This hood is of inverted-trough shape and open at both ends, where it is secured to the outer walls, t', of the air-passage G. The walls i are provided with openings j in line with the hood, whereby access can be had to the bearing h from either end of the hood for examining and lubricating the bearing. The hood is preferably constructed of sheet-iron, and provided at both ends with cast iianges la, by which it is secured to the walls t' of the air-passage G. The lower ver-A tical edges, Z, of the hood I enter vertical slits in the adjacent cross-pieces of the frame A, and the lower horizontal edges, m, of the hood I enter horizontal grooves formed-in crosspieces M, resting on the top plate, g, of the scouring-case, whereby practical]y-tightjoints are formed along the lower edges of the hood. The spindle c passes through an opening, n, in the top of the hood, which is preferably provided with a washer, o, of rubber or other suitable material, forming a tight joint around the spindle. The dust-laden air-current passes from the passage d through the passage G, around the hood I, and into the lower eye, f, of the fan. The hood I prevents this air-current from coming in contact with the bearing h, and as the hood is open at both ends the bearing is rendered easily accessible at all times.

I claim as my inventionl. In a grain-separator, the combination, with the fan and the air-passage through which the dust-laden air passes to the fau, of the spindle on which the fan is mounted, a bearing supporting said spindle, and a hood or cover which covers the bearing in said airpassage and opens outside of the same, whereby said beariug is protected from the dust-1adeu air-current and rendered accessible from the outside without removing the hood, substantially as set forth. 25

2. The combination, with the scouring mechanism, the fan, and the spindle whereby said parts are driven, of an air-passage, G, leading from the scouring mechanism to the fan, a hood, I, open at its ends and extending through said air-passage, and a bearing, h, supporting said spindle underneath the hood I, substantially as set forth.

3. The combination, with the scouringcase having a top plate, g, a fan having an eye, f, a connecting air-passage, G, and a spindle, c, of the bearing h, the hood I, covering the bearing and extending through the passage G, and grooved cross-pieces M, receiving the lower edges of the hood, substantially as set forth.

Witness my hand this 22d day of August,

JAMES MOGILL.

Witn esses:

WILLIAM RICHMOND, WILLIAM MCLEAN.

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