US350059A - William ince - Google Patents

Description

3 Sheets-Sheet 2.

(No Model.)

W. INCH.

DUST COLLECTOR.

No. 350,059. Patented Sept. 28, 1886.

INVENTOR:

I AT TORNEY.

ATTORNEY.

u u I n INVENTOR 3 SheetsSheet 3.

(No Model.)

W. INCH.

DUST COLLECTOR.

N0. 350,059. Patented Sept. 28, 1886.

WITNESSES:

N PETERS, PhoXvLiflmgmpiwr, Washmglon, D. c.

' UNITED STATES PATENT EEicE.

XVILLTAM lNtE, OF IIAYLE, COUNTY OF CORLTTATJTJ, ENGLAND.

DUST-COLLECTOR.

SPECIFICATION forming part of Letters Patent No. 350,059, dated September 28, 1886.

Application tiled April to, lRSti. Serial No. 109,416.

To (@ZZ whom it may concern:

3e it known that VILLIAM INCE, a subject of the Queen of (treat Britain, residing at:

Hayle in the county of Cornwall, England, have invented an Improved Dust-Collector, (for which I have obtained a patent; in Great Britain, No. 8,789, bearing date July2l, N85,) ol' which the following is a specification.

The invention comprises a vertical revolving drum divided into any suitable number ol' sections covered with filtcring-fiz'lnnel, each section being held in position by levers and springs or their equivalents.

One novel l'eature inthe machineis the. construction and arrangement of the devices for working said levers and springs For the clean ing operation, which is effected by the move ment of the drum itself. as hereinafter de scribed. The air-chamber tor the reception of dustladen air to he filtered is situated underneath the drum, and such air iinds its way through thcframe of each section of such filtering area, whence it escapes through themeshes ot' the tiltercloth, and is then at large, leaving the dust behind. The drum carrying the filtering-cloth has no external covering or obstruction, thereby insuring a free discharge of air. The sudden shake imparted to the sections of flannel during cleaning gives rise to a certain amount ol'line dust outside the flannel, and in order to overcome the waste that would take place it allowed to escape into the atmosphere I fix a dustcollccting chamber in front of the point where the cleaning is effected, and by employing a small exhaust-tan all the floating dust is taken up and returned to the machine, to be refiltered.

The machine is capable of collecting dust from any number or kind of dust-creating machines, and also of keeping the dustdaden air l'rom each machine blowing into the collector separate and distinct.

In order to enable my improvements to be better understood. I will proceed to describe the same by reference to the accompanying drawings. in which- Figure 1 represents a vertical section of the machine, and Fig. 2 a plan view of same, the rig'hthand side being shown in section. Fig. i; is a vertical section through a. part of the drum, including three of the filtering sections or pockets, showing the means l'or supporting (No model.) Patented in England July 21, 1985, No. 8,789.

the top l'rames of the sections and the mechanism t'or imparting a shake to the filtering-section being cleaned. Fig. 4c is an enlarged trans verse vertical section through the lower part of the dust-collecting chamber.

The drum A consists ola central vertical shalt, B, suitably mounted to revolve in top and bottom bearings, and driven by any suitable gearing, as shown. This shalt B is provided with a top center or support, C, open in the middle, and a bottom center or support, 1), which is entirely closed. The top support, 0, carries a number of radiating arms, 1%, corresponding to the number of littering-sections of which the drum is composed, the outer ends of such arms being connected to vertical uprights F, which extend down to the bottom support,D, where they are connected to a ring, G. The latter is connected to the bottom support, D, by radial arms H, situated centrally between the top radial arms, E, butin a lower horizontal plane, thus completing the skelcton frame of the drum.

The filtering-sections A A" A, &c., each consists of an open bottom .l'rame, I, in the form of a segment, to which the flannel or other suitable filtering fabric, J, is secured, and extends upward to a top l'rame, K, also in the form of a segment, which. is solid or closed and constitutes the top of the filtering section or pocket thus formed. Each bottom frame, I, is placed so as to rest upon two of the lower arms, H, to whichitissecured, the open space olsuch l'rame being thus over the space between the lower arms, H, in question. Through each top arm, 10, occupying an intermediate position between. these two lower arms, H, a hole is bored tor the passage ol' a vertical rod, L, secured to the top frame, K, of the filtering section or pocket. Between each pair of top arms, i l, a plate, M, extends, which is provided with a bracket, forming the support for a small shaft, N, carrying abell-crank lever, the arm 0 of which extends upward in a slanting direction, while the arm 0" extends horizontally, and is pivoted to the upper end of the vertical. rod L, secured to the top frame, K, of each corresponding filtering-section. The shaft N is also provided with an arm or lever, 1, extending downward and connected by a spring, Q, to the side of arm E, thus normally maintaining the parts in the positions shown in sections A and A, Fig. 3. A cam or roller, or its equivalent,- R, is supported in a fixed bracket, (not shown,,) so as to be in the path of the arms 0 of the bell-crank levers as the drum is rotated, whereby when such roller comes in contact therewith it will depress each arm in succession, and so force down the top frame, K, of its filtering-section against the action of spring Q, and slacken the flannel sidesof same, asshown at A", Fig. As soon as the arm 0 clears the roller R, the spring Q. will again cause the parts toreturn to their normal positions, thus shaking the flannel sides of the filtering-section. The drum A is mounted to revolve over an air-chamber, S, into which the dust-laden air to be filtered is introduced at any suitable point, as shown at S, an air-tight joint being insured between their meeting edges by providing the ring G with an inclined surface to bear on a ring of packing, T, supported on the correspondinglyinclined surface of a ring, U, mounted on top of the chamber S, and pressed inward by a band, V, secured to the side of suehchamber.

The top of the air-chambers is open, as above stated, except at the point where it is desired to effect the cleaning of the filtering sections as they are brought in succession over such point by the rotation of the drum. At this point a segmental platform, W, is arranged in a horizontal position and on a level to allow the lower arms, H, of the drum to just pass over the same, and extends from the outer wall of the air-chamber S slightly nearer to the center shaft, B, than does the inner sides of the filtering pockets or sections, and, being of sufficient width to cover the lower openings of two or more sections at the same time, each section as it arrives in succession over said platform WV, will be cut off from the air-chamber S, and consequently the dust-laden air cannot pass into such section; but the passage forthe dust-laden air will still be open through all the other filtering-sections, the bottom openings of which are not closed bythe platform WV. In the middle of the width of the platform \V a hopper, X, is formed, and terminatesin aspout or chute, X, passing through the bottom of the air-chamber S. The shaking of each filtering-section by the depression and release of arm 0, as hereinbefore described, occurs while the section being cleaned is over the hopper X, so that the dust shaken from it will fall out of chute X as indicated by the straight arrows in section A, Fig. 1;

In order to collect the dust which, when the shake is imparted to the section being cleaned, is thrown off from the outside of such. section, I arrange a dust-collecting chamber, Y, opposite the platform XV, outside the air-chamber S, and extending from the bottom of such latter chamber to the top of the drum, the vertical uprights F of the drum just clearing the inner side of such chamber as the drum revolves. The exhaust-orifice of a suitable fan,

Z, communicates with this chamber, the exhaust-openi ngs a a therein being preferably an ranged, as shown in Figs. 2 and 4, so as to act equally on the opposite sides of a filteringsection when over the hopper X, an inverted V-shaped roof, I), being placed over them, so as to arrest and direct downward the greater portion of the dust entering the collecting-chamber from the outside of the section shaken. The bottom of the collecting-chamber is pro-- vided with a chute or outlet, 0, for the escape of the dust directed downward toward it. The exhaust from the collecting-cha1nber will carry with it a certain portion of the light floating portions of dust, and this, together with the air, may be returned through the delivery outlet 2 of the fan Z into the air-chamber S, and again pass through the operative filteringseetions, to be refiltered. The lower arms, H, of the drum'A are preferably provided with strips of rubber or other suitable flexible airproot' material, to bear upon the upper surface of platform V while passing over the same, and so insure as nearly an air-tight joint as possible; but as probably a certain amount of dust-laden air will find its way between these arms and the platform, in order to prevent the same interfering with the cleaning operation, it is advisable to arrange an exhaust openingbetween the fan and thehopper X in the platform WV, as shown at d, and to provide such opening d with a flap-valve, d, acting automatically and opening outwardly, so that it will only open the exhaust to the fan under the compression of the air within. the section being cleaned, due to the slight collapse of such section when the arm 0 is depressed, as

IOO

before described, the valve closing again automaticall y the moment such depression ceases, whereby any air which may so find its way between arms H and the platform W will be drawn off before the shake is imparted to the filtering-section being cleaned, and be returned by the fan to the air-chamber S. The shaft'B is preferably provided with a sweeping-arm, e, atits lower end within the airchamber S, for the purpose of sweeping any dust which may be deposited by the dust-laden air 011 the bottom of such chamber out of an aperture arranged at any suitable point in the 1 latter.

When it is desired to keep the air to be filtered from several machines separate, the airchamber S is divided by radial partitions into sections, to each of which the air from one of the machines is delivered. The curved arrows show the course taken by the air, and the straight arrows the course taken by the dust removed therefrom. The drum A is caused to revolve at such a speed that the whole of the filtering-sections.will be cleaned every one and one half to two minutes when the machine is in operation.

Having fullydeseribed my invention, what I desire to claim and secure by Letters Patent is.

1. In a dust-collector, the combination, with an air-chamber and a roller pivotedin a fixed bracket, of a rotary drum provided with a series of vertical filtering'sections open at their lower ends and arranged in, the form of a circle, a spring-actuated bell-crank lever mounted on said drum and above each section, and a rod connecting one arm of said lever with the upper end of its filtering-section, said lever being engaged by said roller as the series of sections rotate, substantially as described.

2. In adust-colleetor, the combination, with an air-chamber and aroller pivoted in a fixed bracket, of a rotary drum provided with a series of vertical filtering sections open at their lower ends and arranged in the form of a cirele, a three-arm lever mounted above each section, a rod connecting one arm of said lever with the upper end ot'its filtering-section. and a spring connecting another arm of said lever with the frame-work ot' the drum for keeping the section normally distended, the third arm of said lever being engaged bysaid roller as the series of sections rotate. substantially as described.

53. Inadust-collector, the combination, with an air-chamber, of a series of vertical filteringsections open at theirlower ends and arranged in the form of a circle, means for supporting and rotating said series of sections bodily around a common center, means for imparting a shake to each section at a given point in its course of rotation, a dust-collecting chamber contiguous to and opening toward the filtering sections opposite said point, and an exhaustt'an for said dust-collecting chamber, substantiall y as described.

-I-. In adust-collector, the combination, with an air-chamber, of a series of vertical filteringsections open at their lower ends and arranged in the form of a circle, means for supporting and rotating said series of sections bodily around a common center, means for imparting ashake to each section at a given point in its course of rotation, a clmte below said point, a dust-collecting chamber contiguous to and opening toward the filtering-sectionsopposite said point, said chute and chamber communicating at their lower ends, and an exhaustl'au outside of the point of communication for exhausting the air from bot-h the chute and dust-collecting chamber, substantially as described.

5. Ina dust-collector, the combination, with an ai r-chambcr, of aiserics of vertical lilteringsections open at theirlower ends and arranged in the form of a circle, means for supporting and rotating said series of sections bodily around a common center, means for imparting a shake to each sect-ion at a given point in its course of rotation, a dust-collecting chamber contiguous to and opening toward the filteringsections opposite said point, an exhaust-open ing within said chamber opposite each side of the lower end of said section, and an exhaustfan for said dust-collecting chamber, substair tially as describml.

ii. In a dust-collector, the combiimtion, with an air-chamber. of a series of vertical filtering sections open at theirlower ends and arranged in the form 01' a circle, means for supporting and rotating said series of sections bodily around a common cent-er, means iorimparting a shake to each section at a given point in its coulse of rotation, a chute below said point, a dust-collecting chamber contiguous to and opening toward the filteringsections opposite said point, said chute and chamber communicating at their lower ends, an outwardlyopeuing valve within said chute inside of said point of communication, and an exhaust-tan outside of the point of communication for exhausting the air from both the chute and dustcollecting chamber, substantially as described.

\Vitnesses:

JOHN S. BROALH, JOl-IN \Vnen,

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