US958666A - Apparatus for dust collection. - Google Patents

Description

0'. M. MORSE. APPARATUS FOB. DUST GOLLBTION. APPLIOATION FILED APR. 2o, 1904.

958,666. Patented May 17, 1910.

UNITEES To all whom mag; can@ it klwwn h Jackson, in 111e sammy of lwclgaal7 have Ewen use-ful mpmver Collection; :md foowi .U is a 'JL tion they@ cnmpanymg i ibis specczslmn.

aix the perl al no" escape with effom'y beams@ o def My nvenon" has the 025mg for the dust i0 provide an ungut@ 6o ceectwn., zu 1i 15 ven'm'ra w io over eci" nl* bac-.k- W dws@ ends "xqxwfxws lik@ :numeral:

ya to mi@ parts. j/ msmgwhlch may mits down thv per man. This 1 Pm im close ozfld'onsj. nhe ogllts point of bald periphery of Qux, the fh@ ail pal overcome path of mval Laib of @u co, :1t a, Saienf; ng incoming mapp/f, mfom plefseul m t! imperfect se'mmtmx o evidenced by the mam nudet 0j 2.- sma pox'ti( .:ipally of 4. mrt. This defect f dm air being' yvhm than 'fusi is periphery thereof. These parts broadly are well known in the art.

I provide in my machine a means for deflecting that stratum of air whirling in the pilane of the inlet in such direction that it ces not cross the path of the incoming air at an obtuse angle, butis thrown toward the axis of the casing in approximate concentricity or parallelism with the incoming air. To this end I extend the end of the inlet spout at the side nearest the axis of the casin a suitable distance into the casing, as 1n icated at 12a, and associate therewith a detlector 13, forming a smooth curve with the casing wall 10a, (of which in the present illustrative construction, it is an integral part) and terminating at the nose of the exten ion 12L in substantial parallelism tothe direction of said extension. I also pro vide in my collector means for positively directing bodies of air at different levels in the machine from areas within an. undeflected peripheral air-belt toward the area of least air-density, that is to say, toward the axis of the whirl, in like direction with the glnl'li,` movement of the central column of air*i towdrd its point of escape.

In the s ecil'ic structure 14 indicates a non-rotatab e rod axially arranged in the casing and supported in suitable braces 15 and 15l conveniently secured to the casing structure. The rod is preferably screwthreaded at its upper end and vertically sustained by a nut 16 bearing on the upper brace 15.

16 indicates a loclr nut for nut 16. It will be apparent that by turning the nuts 16 and 16 the rod 14 may be vertically adjusted.

Rigidly secured to the rod 14: are one or more deliectors extending from points suitably removed from the casing wall toward l the axial rod, and shaped to deflect the air which impinges thereon in an inward and upward direction, that is to say, toward the axis of the casing and in the direction of flow of the escaping air.

In the present embodiment 17 represents a delector, (best shown in detail in Fig. 3,) consisting preferably of a thin metal blade of Suitable vertical extent, or width, and radial extent, or length, preferably having its outer end curved laterally, as at 17', in direction opposite to that of the air ,whirl in the casing, and having its inner end bent sharply as at 17 in the same direction, to form a dcilecting surface inclined upward and inward. Three sets of these deflectors, four in a set, are illustrated in my present embodiment, (though more or less of them may obviously be employed without departing from the spirit of my invention) each of the deflectors being suitably mounted on an arm 18 projecting radially from the rod 14. Each set of delectors is preferably balanced or symmetrical, the four deflectorarms 18 of each set being disposed each at right angles to its adjacent fellows, and where a plurality of sets are employed they are preferably disposed in circumferential offset relation, each set breaking angles with the next subjacent set. The sets of deflectors may be vertically spaced apart at suitable distances, determined by-the proportions of the machine, and the sets are arranged at appropriate distances from the rod, as may be desired. The deiiectors of the upper set are preferably nearer the axis than the next subjacent set for reasons to be set forth.

In the operation of a centrifugal machine the air projected tangentially' intothe casing assumes a whirling motion and (in a casing of the shape shown) normally :tends to follow a spiral path downward close along the wall of the chamber to the plane where centrifugal effect is overcome bythe inward .pressure of the air, in which plane or level the air tends to move spirally inward to' ward the axis and thence ,up and out through the tubular guard. l,

At the end of its first circuit of the casing in my improved machine the air is directed by the defiector 13, into a path substantially parallel to that of the incoming air. By this means the whirl of air is prevented from cutting off the inlet spout and the back press sure on the fan is considerably reduced. It will be noted that the deflector 13 is so shaped as to alford no abrupt projection in the path of the air, so that the dust particles will not be caused to rebound toward the center of the machine, but on the contrary, the dust being more ponderable than air and having, therefore, greater persistence of motion resists most strongly the deflection toward the axis, and is massed at the surface of the deflector more effectually than were it allowed to take a truly circular course. l

It will be apparent that below the level of the deflecting wall 13, a peripheral space is left uninterrupted by deflectors, so that a peripheral belt of the air may whirl without interference. Bodies of air at different levels, between the axis and said peripheral belt contact with the deflectors 17 and are direeted thereby toward the axis in the direcf of wlth the ing

the

toward nec scribed, the combination of a casing having a tapering portion, a tangential inlet tov libe larger end, an air outlet in said end, and a dust outlet in the smaller end, of a delecting structure comprising a support, a plurality of independent blades secured Lhereto in different directions and at dierent levels7 on generally radial lines7 said blades being suitably shaped to deflect nir from points radially remote from the casing axis inward 10 and upward, toward the air outlet. I ln testimony that I claim the foregoing as my own, I aix my signeturein presence of two Witnesses.

ORVILLE M. MORSE. In presence o- FoR-LE BAIN, y JOHN L. BENTmY.

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