US545167A - malsnesj - Google Patents

Description

(No Model.) 4 sneets-sheen 1. H. O. MALSNESS. AUTOMATIC DUST GOLLEGTOR.

Pmmea Aug. .27, 1895.

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` Wa/Mwf Www (No Model.) 4 Sheets-Sheet 2. H. O. MALSNES. AUTOMATIC DUST GOLLEGTOR.

No. 545,167. Patented Aug. 27, 1895.

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(No Model.) 4 Sheets-Sheet 8. H. G. MALSNESS. AUTOMATIC DUST COLLEGTOR.

ND. 545,167. Patented Aug. 27,18%.

M01 e88 es (No Model.) 4 Sheets-Sheet 4.

H. C. MALSNESS. AUTUMATIG DUsT coLLEoToR.

No. 545,167. Patented Aug. 27, 1895.

UNITED STATns PATENT I'IARVEY O. MALSNESS, OF STRATFORD, CANADA.

AUTOMATIC DUST-COLLECTOR.

SPEGIFICATION forming part of Letters Patent No. 545,167, dated August 27, 1895.

Application filed January 3, 1895- Serial No. 533,692. (No model.)

To (ZZ whom it may concern:

Be it known th at I, HAnvnY CHRISTOPHER MALSNESS, of the city of Stratford, in the county of Perth androvince of Ontario, Canada, have invented a certain new and Improved Automatic Dust-Collector, of which the following is a specification.

The object of my invention is to so construct the collecting-cylinder that the walls of its chambersp may be formed of a continuous web of fabric, to form the cylinder with a central expansion-chamber to separate the coarse particles of dust and at the same time to give the machine the greatest possible cloth-surface in any given space, to provide effectual means to cleanse the mes'nes of the cloth of each section of dust, and to provide means for discharging the collected dust without permitting the egress of dust-laden air; and it consists, essentially, of the construction and arrangement of the parts as hereinafter more specially set for-th, and then definitelyclaimed.

Figure l is a perspcctive view of my improved dust-collector with one of the side panels removed to show the dust-collecting cylinder. Fig. 2 is a horizontal cross-section of the same. Fig. 3 is a Vertical section through the line ab in Fig. 2. Fin. a is a sectional detail showing the air cut-off and the dust-discharge of the machine. Fig. 5 is a detail of the upper spider of the cylinder. Fig. 6 is a detail of one of the revolving scrapers. Fig. 7 is a horizontal section showing the cylinder and the closing board. v

In the drawings like letters of reference indicate corresponding parts in the different figures.

A is the casing of the machine, snitably constructed to support the difierent parts and provided with paneled sides B, the panele being filled with a porous fabric.

C is the air-inlet opening into the upper chamber D of the machine.

E is the dust-collecting cylinder, the spin- (ile F of which is journaled at a a, at the top and bottom of the casing A. (See Fig. 3.)

G is a board or ledge extending over the top of the cylinder E and fitting close to the same, so as to permit the dust-laden air in the chamher D to pass into the center of the cylinder only.

H is a similar ledge fitting close to and clearly seen.

around the upper side of the lower end of the cylinder, so as to prevent the air in the lower part of the casing from passing up around the outside of the cylinder. This cylinder is composed of a series of rods I, connecting two spiders J and K, which form the ends of the cylinder. The upper spider is provided with a series of openings, as shown in Fig. 5, while the lower spider is provided with the openings shown in Figi. 2. Around these rods I a continuous web of fabric L is wound, substantially in the manner shown in Fig. 2, so as to divide the cylinder into a star-shaped expansion- Chamber M and a series of V-shaped outer chambers N. The shape of these chambers will be best understood by referrng to a few of the rods I by specific letters, as in Fig. 2. The inner Chamber is bounded by the series of pairs of rods b b' and the series of rods c, While the outer V-shaped chambers are formed by the fabric passing -consecutively around the rod b, thence around two of the outer series of rods d, thence around one of the series of rods e, thence back and around two more of the series of rods d, then back around one of the rods b', and so on. lt will be noticed that the pair of rods b b', being close together, cut off communication between the central and outer chambers. The air has access to the eXpansion-chamber M through the openingsf and g, formed in bot-h the upper and lower spiders. Ingress to the chambers N is obtained only through the lower spider by means of the openings h j.

From this method of constructing the collecting-cylinder, it will be seen thata very large dust-collecting surface is obtained and that it may be constructed of a continuous web of fabric without seam or join. Suitable means are used for giving an intermittent revolving motion to this cylinder, as hereinafter described. Attached to the spindle F on the cylinder are a pair of four-armed scrapers O and P. (See Fig. 6.) The upper scraper in revolving keeps the board or ledge G cleared of dust, while the lower scraper P throws the dust collected in the bottom of the casing A into the revolving' Valve Q. This Valve is revolvcd by means hereinafter descrihed. On reference to Fig. 4 its construction will be A series of chambers R are formed in the valve by means of the L-shaped IOO arms S. rllhis valve Q revolves in a closelyfitting casing T, so that no air or dust can pass between the valve and its casing, suitable openings being of course formed at the top and bottom of the casing to permit of the ingress and egress of the dust passed through by the valve. As this valve is continuously revolved the dust is received into the chambers R when at the upper side of the valve and discharged therefrom when the said chambers have arrived at the lower side, and thus no dust-laden air is permitted to escape. In Figs. 2 and 4 is also seen a triangularlyshaped board U, attached' to the side of the casing, and so shaped as to close each of the outer chambers N as it passes over it.

V is a hoop surrounding the cylinder about the center of its length.

7a is a spring-knocker fast at its lower end to the outside of the casing of the machine. Its upper end 13', which is preferably of metal, st rikes against a bolt m, passing through a hole in the casing of the machine opposite the hoop V and immediately above the triangular board U. On reference to Fig. 1, the mechanism for imparting an intermittent revolving motion to the cylinder E for rotat-ing the Valve Q and for Operating the knocker will be seen.

n is a horizontal shaft suitably journaled on the outside of. the casing and provided with a driving-pulley 0. lines.) The other end of this shaft is provided With a disk or collar which carries a pin p near its periphery, and which pin engages with the end of the knocker k as said shaft revolves anddraws it away from 'the bolt m, and as the shaft continues to revolve the pin passes out of engagement with the knocker and the latter is free to spring back and strike the bolt m, thus causing the latter to act on the cylinder and vibrate the fabric on the same. Of course it will be easily seen that this operation is repeated at each revo lution of the shaft 'n and its pin p.

q is a bevel-pinion fast on the shaft n.

r is a bevel gear-wheel fast on the shaft s, suitablyjournaled on the casing A. The upper end of this shaft carries a crank-wheel t. A pitman u is journaled on a pin near the periphery of this wheel.

o is a lever loosely journaled on the upper end of the spindle F of the cylinder E, above the ratchet-Wheel w, which is rigidly connected to the same.

a' is a spring-dog carried by the lever b. A pitman u and the levero are connected together by a pin c', so that by the revolution of the crank-wheel t a vibratory motion is imparted to the lever o. Several holes are provided in both the level' and the pitman, so that the throw of the lever may be accurately adjusted.

d' is a curved guide which supports the lever o. From this construction it will be seen that as the leverv moves away from the crankwheel t that the dog a' passes over the back (Shown in dotted of the teeth of the ratchet-wheel; but as the lever moves toward the crank-wheel the ratchet-wheel is rotated and With it the cyl inder E, this motion being sufficient to move the cylinder the width of one of the outer chambers N.

e' is a sprocket-wheel fast on the shaft 'n and connected by a sprocket chain to the sprocket-wheel f' on the spindle g' of the valve Q.

Having thus described the construction of my invention, I Will briefiy explain its operation. The dust-laden air enters the upper chamber Dof the machine through the opening O, thence passes through the openings f and gin the upper spider J, and thence into the expansion-chamber M. From thence it passes through the openings and g in the lower spider K, through the bottom chamber of the machine, and up through the openings h, i, andj into the outer chambers N, thence through the walls of these chambers and out through the porouspanels of the doors. The expansion-chamber M, into which the air is first directed, will separate the coarser particles of the dust, which will fall directly to the bottom of the machine, while the finer particles of dust will rise into and be depesited on the cloth surface of the outer chambers N. When one of these chambers stops above the triangular board U, it is sharply agitated by the knockerk and the dust shaken to the bottom onto the board u, whence it is swept as the cylinder again revolves. As each chamber in turn stops over this board and is agitated by the knocker, all the mesh es of the cloth are kept properly cleaned. The dust falling into the bottom of the machine is swept by the revolving scraper P into the valve Q, by means of which it is removed from the machine.

From the construction 'and operation of my machine it will be seen that I have provided a machine. in which the cylinder has a very great capacity for its size, and that by first introducing the dust-laden air into the expansion-chamber in the center of the machine the coarser parts of the dust are separated, leaving the outside cells to operate on the material which is finer and more difficult to separate, and that by imparting an intermittent motion to the cylinder and shutting out the air from one cell atatime the knocker is enabled to effectually jar off the dust and keep the meshes of the cloth clean, and that by the use of the revolvingvalve constructed as described the collected dust may be discharged without allowing the air to escape. It should be mentioned that means may be provided, if necessary, to fasten the edges of the cloth of the cylinder to the upper and lower spiders.

What I claim as my invention is- 1. In a dust col1ector,a cylinder comprising two spiders, a series of rods connecting said spiders, and a continuous web of fabric passing around said rods and dividing the space IOC IZO

into an inner chamber and a series of outer chambers; the outside of both the inner and onter chambers being formed by said webbing, suhstantiallyas desoribed.

2. In a dust collector, a cylinder comprising two spiders, a series of rods connecting said spiders, and a continuous web of fabric passing around said rods and dividing the space into an inner charnber and a series of outer chambers, one of said spiders affording communication to the central or inner chaxnber only, and the other Spider constructed and arranged to afiord communication to all of the series of onter ohamhers, substantially as described.

3. In a dust collector, a cylinder comprising upper and lower spiders, three series of rods conneoting said spiders, and a continuous Web of fabric passing from rod to rod and thns dividing the space between the spiders into a substantially star-Shaped inner chamber M and into a series of outer ohainhers surrounding the chamber M, all of said chambers being snrronnded by the fabric, snbstantially as described.

et. In a dust eollector, a rotatable cylinder comprising a central cloth-Walled chamber and a series of cloth-walled outer chambers, in combination with a casing constructed and arranged to direct the dust-laden air into said central Chamber and thence up into said outer chambers, a triangnlar board constructed and arranged to successively close each outer chamber, means, substantially as described,

arranged to revolve the said cylinder intermittently and means arranged to agitate the Chamber so ont off, snbstant-ially as and for the pnrpose speoified.

5. In a dust oollectorJ the combination of the following elements-the casing' A containing a cylinder E connected with a spindle F, ratchet-wheel w on said spindle, the lever i) carring a spring-dog a' arranged to act on said ratchet-Wheel, a crank-wheelf a pitman u connecting said vlever o and crankwheel t, a bevel gear wheel a", a shaft s connecting said Wheels t and fr, a driving-shaft n carrying a pinion q` meshing' with said wheel rr, a knocker k, and a pin having a connection with shaft n, and arranged to opcrate said knooker, as said shaft revolves, snbstantially as and for. the pnrpose specified.

6. In a dust collector, having a cylinder O provided with inner and outer chambers, the

'combination of a casing provided With an upper chamber D, having a ledg'e G extending around it, arranged to allow the dust to enter the inner chamb'er only, the cylinder spindle F, means for revolving the said scraper and spindle, and the scraper G arranged to scrape the dust off of the ledge G into the inner chamber, snbstantially as and for the pnrpose specified.

Stratford, December 25, 1894-.

HARVEY C. MALSNESS. In presence of- THos. GILLESPIE, O. E. ToLToN.

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