US258099A - Dust-collector - Google Patents

Description

(N0 Moder.) 2 Sheets-Sheet 1.

J. MILLS;

. DUST GOLLEGTOR. N0. 258,099. Patented May 16, 1882.

WTN S K Q |N NT -F\- (Np Model.) 2 Sheets-Sheet 2.

J. MILLS.

. DU'STGOLLBGTOR. I NO. 258,099. Patented May 16. 1882.

' UNITED I STATES PATENT @FFICE. I

JONATHAN MILLS, OF CHICAGO, ILLINOIS.

DUST-COLLECTOR.

SPECIFICATION forming part of Letters Patent No. 258,099, dated May 16, 1882 Application filed April 5, 1880. (X model.)

thereof, reference being bad to the accompa nying drawings,and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to devices forcollecting the dust from purifiers in flouring-mills;

and it consists essentially in a revolving cloth covered reel and a dead-air chamber within said reel exposed to an air-current from the purifier, whereby the dust borne by such current is deposited on said cloth as the air escapes through the same, and is carried in its further progress out of such air-current to said still-air space, where the dust is detached from the clothand falls.

In the drawings, Figure 1 is a side elevation of a machine embodying myinvention. Fig. 2 is a longitudinal Vertical section. Fig. 3 is a front endview, Fig.4 is a rear end view, and Fig. 5 a central transverse vertical section, thereof.

A represents a cylindric reel having circumferential ribs B B, to the inner faces of which is secured the cloth 0. This cloth is coarsely-woven flannel or other suitable material having meshes adapted to allow the air to freely pass through it, but also calculated to arrest the dust. In the flannel the open meshes and numerous free fibers lying across the meshes admirably accomplish the end desired. The reel is supported in a frame, F, by means of external rollers, I), mounted on shafts d, which turn in bearin gs secured to the frameuprights. One of the shafts d is provided with a pulley, P, by which the reel is driven. Withshown. The. inclined sides T of the trough rise into proximity with the cylindric cloth 0, thereby cutting off from the general interior of the reel a chamber, I, or, in other words, making two chambers, I and M, within the reel. At the open end of the reel is located aparti cylindrical stationary. housing, J, con centric with andclose to the reel, and rising to connect with the upper edges of the outward extension,T, of the trough. Said trough, extension has the head N, and desirablyt-he partition 1 which may preferably rise to the contiguousreel-rib B, practically closing the chamber I. At the bottom of the trough T is located the worm-conveyer, 7, extending from the head N along the bottom of thetrough and through the disk H to the end of the hori= zontal spout i. The worm is run by the band 1), connecting the pulleys p 19, as shown in Fig. 1. Thcspont 8 leads in any desired direction and to any desired point from the trougheXtension or horizontal spout i. The space between the disk H and the annular head H of the reelis closed suffioiently by a strip of lambskin with the wool on, applied as a packing to the joint, and generally the spaces between moving and stationary parts of the apparatus may be similarly closed effectively againstthe escape of dust; or any other form of packing may be used. Special provision is made to more effectively cut off the chamber I from the air-blast by means of the wings T of the trough T extending laterallya little more than the distance between the adjacent rails r, and providing the inner surface of the reel oppo site the rails with longitudinal closing-strips 1, some one of which will at all times closethe spaces between the extensions T and the reelcloth.

K is a knocker pivotally secured by the arm a to the frame F in position to strike on the rib B at the top of the reel, and L L are lifters fastened to the rib B to raise the knocker as the reel is turned beneath it. Preferably the lifters are placed to let the knocker K fall at thejunction of the longitudinal rails r with the rib B, so that the jarring eifect of the blow caused by the fall of the knocker will be carried by said rail from one rib to another. The rails 1' being in contact with and supporting the cloth 0, the effect of the blow of the knocker will be felt upon the cloth throughout the length of the rails.

In the operation of the machine the housing J will be connected to receive the air-current from the purifiers, which, with its burden of dust, will thus be directed into the interior of the chamber M of the reel'A. The air will vfind escape through the meshes of the cloth-C but the dust will be arrested thereby, and form a body accumulated on its inner surface. As the reel is rotated that portion of the cloth thus exposed to the air-current and receiving the deposit of dust in the chamber M is gradually carried over the t-rough'l and chamber I; Here it is jarred by the knocker K, and the dust adhering thereto is dislodged. This chamber being cut off from the air-current, thedust falls into thetrou-gh, and the unburdenedcloth advances over the-trough to be again exposed and to again accumulate a body of dustin the chamber" I designate the chamber M a blast-chamber, whether the air-current be forced throughthe' same by the fan of the purifiers or drawn through it by a suction-fan. ldesignate th-echamberlaWlead-air or stillair chamber, and" require only that'the air therein be sufficiently quiet to permit the dust to fall or. settlein the-trough.

ThewormsWobviously serves to convey away the dust dropped into the trough as fast as it accumulates, andthe end extension, T, of the trough is a convenient and available'reeeptaele for the sweepin gs of the mill.

While I prefer and have shown the traveling cloth attached to a rotating reel, I do not limit myself to such device for moving the cloth. It may be loosely supported on rollers, for example, and advanced from the blastchamber to the still-air chamber by rotating one or more of the supporting-rollers; nor do I limit myself (except in the specific claim therefor) to the location of the dead-air chamber within the reel. v

Having thus described my invention, 1 claim- 1. In combination with the still-air chamber and the moving cloth of a dust-collector, the conveyer W, substantially as and for the purposes set forth.

2. A rotating reel bearing a dust-cloth, in combination with a blast-chamber and a stillair chamber within said reel, as described.

3. In combination with a reel bearing a dustcloth, a hopper arranged within the reel 'to separate the general interior thereof into two unconnected chambers, substantiallyas and for the purposes set forth.

In testimony that I claim the foregoing as my invention, I affix my signature in presence ot'two witnesses.

JONATHAN MILLS.

Witnesses:

M. E. DAYTON, J ESSE 00X, J r.

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