US1601045A - Dust collector - Google Patents

Description

Septo 28 1926.

A. A. SERVA DUST COLLECTOR 2 Sheets-Sheet. l

Filed Jan. 26 1924 K g1/uvam* o@ A. Sama whm/fi www@ sept. 28 1926.

A. A. SERVA DUST COLLECTOR Filed Jan. 26. 1924 2 Sheets-Sheet 2 man srATas ADAM A. SERVA, OF CANTON, OHIO, SiSIGNOE TO THE UNITED ELECTRIC COMPANY,

OF CANTON', OHIO,l A CORPORATION OF OHIO.

DUST COLLECTOR..

Application led January 26, 1924. Serial No. 688,717.

i This invention relates to improvements iny an upright bag, which may be pervious, to

permit the heavy dirt and dust which enll@ ters the manifold to settle in the lower portion of the bag while 'the air may escape through thewalls of the bag.

The above and other objects may be attained by providing avertical bag into the l middle portion of which is extended a T- elbow leading fromthe outlet of the :fan chamber, the opposite ends of theT-elbow, the stem of which is flared from the fan casing, being directedtoward the ends of the b practical embodiment of the invention is illustrated in the accompanying drawings, in which-e Figure 1 is a side elevation of a vacuum cleaner of the truck type', provided with the improved dust collector,`one'wheel of Athe truck being removed for the purpose of illustration v Fig. 2, a section on the line 2 2, Fig. 1;

Fig. 3, a view similar to Fig. 2, showing a modified form of connection between the fan chamber and bag;

Fig. 4, a detached, perspective View of the clampl for the lower end'of the bag;

Fig. 5, a side elevation of the ag, parts vbeing broken away tofillustrate the T-elbow which is shown in section; Fig. 6, a view similar to Fig. 5, showing the bag clamped around the upper end of the T-elbow;

Fig. 7, a side elevation of a modied form of bag having straight sides; and

Fig. 8, a detail front elevation of the cor? set for protecting the middle portion cf the 1 let 3, to which may be attached a hose hav;l

.surface to be cleaned.

aimilar numerals indicate corresponding ing a nozzle or cleaning tool of any accepted type for engagement with the floor or other This tank communicates in usual manner with the fan chamber 4, in which is mounted a rotary suction fan of usual construction, driven by the motor 5. This much of the construction may be varied, and in its details forms no part of the present invention.

To the out-let neck 6, or 6a of the fan chamber is attached an elbow 7 yor 7c, to the rear end ofhwhich is connected, as by the bayonet swivel shown, the reduced extremity of the stem of the T-elbow 8, the enlarged T-head 9 thereof being preferably located in the longitudinal center of the device as shown in Figs. 2 and 3.

rlhis T-elbow is extendedinto the middle portion4 of an vupright dust collector bag 10 or 10, preferably at a point slightly below the center of the bag, as shown in the drawings. A neck 11 or 11a may be formed in the middle portion of the bag to receive the T- elbow, a clamping ring 12 or they like, being provided around said neck for securing the same upon the elbow.

The truck may be arranged to bemanu'ally propelled over the floor by means of a U- shaped handle 13, connected at its forward ends to the tank or other portion of the truck and straddling the dust collector bag, with a bracket 14 mounted upon said handle enga ing the loop 15 at' the upper endof the vclamping bolt 17 and wing nut 18.

A. swivelled front castor 19 may be provided for supporting the forward portion of the truck and assisting in steering the same as it is propelled across the door.

The dust collector bag may be reduced atits central portion as 'shown in Figs. 5 and 6, and if desired, a ring 2O may be pro'- vided to bind this reduce portion of the bag to the vertical portion o the T-elbow.

be might from ap a The bag may bottom as shown in Fig. 7, the T-elbo/W being spaced from the side walls thereof, permitting dirt and dust to pass downward from the upper portion of the bag around the outside of the T-elbow without interference from the air blast discharged through said elbow. l

For the purpose of su porting the reduced middle portion of t e bag as shown in Fig. 5. a corset 21 maybe provided around the same. This corset may be formed of pervious material, such as wire mesh or perforate sheet metal, split vertically upon its front side as shown at 22, and provided with the split nipple 23 surrounding the stem of the T-elbow.

As shown in Fig. 5, a concavo convex shield 25 may be provided in the upper end of the bag to prevent the same from collapsing, this shield being connected in any suitable manner to the loop 15 by which the bag is supported.

This dome shield extends a substantial distance down around and within the sides of the bag to distend the same, is preferably pervious, being formed of wire mesh, perforate sheet metal or the like, in order to permit the air to pass freely through this portion of the wall of the bag.

The dust laden air which is expelled from the fan chamber expands as it passes through the flared T-elbow, to reduce the pressure gradually as the air passes from the exhaust of the fan chamber through the enlarged vertical portion of the T-elbow.

The air entering the vertical portion 9 of the T-elbow will exhaust upward and downward, the heavier dirt dropping into the lower ortion of the dust collector bag, while only t e 1i hter particles of the dust will pass upwar into the upper portion of the bag, the air escaping through the walls thereof; and the lighter dirt which is carried into the upper portion of the bag will later drop around the outside of the T-elbow into the lower portion of the bag.

The T-elbow serves not only as a support by which the middle portion of the bag can.

be attached to the exhaust pipe of the cleaning machine, but it also serves as a shield to prevent the dust and dirt laden air from impinging and cutting out the side wall of the bag, until after it has been deflected either upward or downward into the end portion of the bag.4

The upper portion of the bag may be shaken or tapped at any time, causing all of the fine dust 4which mav adhere to the walls of the upper portion of thebag, to fall into the bottom of the bag, which may be easily opened and emptied whenever necessary by merely removing the clamp 16.

I claimz- 1. In a vacuum cleaner or the like, an exhaust manifold arran ed to discharge in opposite directions, and a dust bag surroundingr the manifold and spaced therefrom with its end ortions extending in the directions of disc arge.

2. In a vacuum cleaner or the like, an exhaust manifold arranged to discharge in diiferent directions, a dust bag surrounding the manifold with its end portions extending in the directions of discharge, and a corset surrounding the middle portion of the dust bag.

3. In a vacuum cleaner or the like, an exhaust manifold arranged to discharge in different directions, a dust bag surrounding the manifold with its end portions extending in the directions of-discharge, said dust bag being reduced at its middle portion, and a corset surrounding the reduced portion of the dust bag. l

In testimony that I claim the above, I have hereunto subscribed my name.

ADAM A. SERVA.

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