US2603351A - Dust collector - Google Patents

Description

w. o. VEDDE R July 15, 1952 DUST COLLECTOR 5 Sheets-Sheet 1 Filed July 16, 1946 W. O, VEDDER DUST COLLECTOR 3 Sheets-Sheet 2 Filed July 16, 1946 Jufly 15, 1952 o VEDDER 2,603,351

DUST COLLECTOR Filed July 16, 1946 '3 Sheets-Sheet 5 Patented July 15, 1952 UNITED srArEs rarer Fri-cs DUST COLLECTOR "Vlalter v0. Vedder, 'Hagerstown, Md., assignor to .Pangborn Corporation, Hagerstown, Md., a corporation or Maryland 7 Application July 16, 1946,.Serial No. 635,880

. "SCI aims. 1

This invention relates .to .dust collecting ap paratus such as, that used in stone Workingand the like, and has for its object the provisionof an eflicient collector .of simple andconvenient construction and arrangement of parts.

Theinvention consistsin the combinations and arrangements hereinafter described. and claimed.

Inthe-accompanying drawings-of a device according to the invention a Fig. lis a side elevation.

Fig. 2 is a front elevation.

Fig. 3 is a vertical section viewed from the 1ine.'2--2 of Fig. linzthe direction of the.arrows.

Figs. 4, 5, 6 and 7 are details on an enlarged scale, Fig. 7 beinga section from theline 1-7 of Fig. 6 in the direction of the arrows.

In .the embodiment of theinvention .shown in the drawings, and more fully described hereinafter, the dust collector comprises a vertical support or standard standpipe, and a suction ofitake preferably overlying and axially aligned therewith. A chip separator is rotatably mount- .ed on the standard and communicates with the elf-take. The chip separator has a lateral inlet in:one of its ends. A hose reel lies. in surrounding relation to this end of the separator, and is rotatably mounted on a hollow bearing coaxialwith the inlet. A dust collecting hose is carried by the hose reel, and has-at. its inner end a rotatable connection with the inlet by way of the hollow bearing.

Means is provided for releasably holding .the separator and reel in adjusted positions of rotation, and means is provided for adjustably supporting that portion of the hose extending from the hose reel. This last means .in the illustrated .form. comprises an extensible swingableboom, ro-

tatably supported on the standardand guyed to the rotatable separator. A chip trap is provided communicating with the lower part of the separator. In the form shown the lower part of the standard is enlarged to form the chip trap, and the separator is provided with a hopper-like portion disposed for discharging separated chips through the standard and into the chip trap. A bafile within the separator lies between the inlet and the chip and suction outlets, and an access door is alsoprovided. V

In more detail, as shown in Figs. 1 to 3, the standard has an enlarged bottom portion H serving as a chip trap and provided with a cleanout door 12. An upwardly facing shoulder I3 is provided on the standard lllywhich constitutes means for .rotatably supporting a collar M in vvvhichis mountedthe hose support 60 hereinafter 2 described. The standard J0, extending above the enlarged base H, has a circular cross section provided with a clamp l5 which may be contracted to lock the separator in .an adjusted .positionof rotation. Theseparator 16 is provided with a depending tubular portion I! having a flanged collar l8 intermediate its length by which it is rotatably supported in the standard. The

tubular portion H is connected to-the separator body by a hopper-like portion 19 facilitating discharge of the-separated chipsto'the chip-trap.

Themain-body of the "separator l6 in-the-form shown is generally cylindrical and hasits cylindrical axis extending horizontally, its axis of rotationbeing vertical andlocated coaxially of the tubular portion I! and the aligned suction off take. 20,which are arranged near one' end of the cylindrical body. The end of the body l6 remote ,from its axis of rotation is closed by ahead .2l

rotation in underlying relation to the overhead suction off-takeZO, andmay be locked-in any position of rotation withrrelationthereto.

Within the "body "of the separator it there "positioned a baffleplate 126. As best shown in'Fig. 3 :the plate 26 is supported, as by brackets 21, 'betweenthe inlet.22 and the chip and suction off-takes l9 and '20. The dust and chip carrying suction stream entering the separator through the inlet '22 impinges on this plate, which "may be a replaceable element. 'At the same time the velocity of the stream is reduced within the enlarged chamber of the separator 16. The chips and other heavy particles are thus caused to drop out of the suction stream and -:fall

by gravity through the chip discharge'hopper 1'9 into the chip trap H. The wear resultingfrom the impingement is restricted to the :baiiie 2.6. As best shown in;Figs.2 and 3,"the'separatorilfiiis provided with an inspection do.or.:28, located, in

the'form shown, in the-end -29 10f the separator remote from its inlet, andbehind the bafiie'flfi.

"The suction hose reel 30, in the form shown, is concentric with the cylindrical end;of :the;separator casing Hi, and lies in surrounding .relation thereto. Thereel is .carried byaahubgfl,

best shown in Figs. 3 and 6, which is mounted on a flanged sleeve 32 rotatably supported in the inlet bearing 23, and is thus rotatably mounted on the separator in coaxial relation to its inlet 22. As shown in detail in Fig. 6, this mounting may be efiected by assembling the flanged sleeve 32 with the bearing 23 from the inside thereof, threading the hub 3| on the sleeve, and locking the hub in place by a threaded locking collar 33, in turn secured by one or more set screws 34, if desired. Packing 35 is preferably employed between sleeve 32 and bearing 23. The hub 3|, to which reel 30 is secured, as by bolts 36, is thus rotatably mounted on the separator inlet head 2 I.

The reel 30, as is best shown in Figs. 2, 3, and 4, in the illustrative embodiment comprises two reel ends 46 and 4| which, with the intervening reel-drum 42, define the hose receiving space of the reel. In the form shown, the reel end 40 is annular, and it and a portion of the drum 42 lie in surrounding concentric relation to the cylindrical end of the separator body l6. The separator heads 2| and 29 in the illustrative arrangement are secured to annular flanges 43 and 44 at the respective ends of the cylindrical wall of the separator. The inlet end of this assembly provides an outwardly faced annular reel guiding shoulder 45. straining of the reel bearing is thus avoided.

A reel operating hand-wheel 46 is desirably provided, preferably by extension of the diameter of one of the reel ends, herein the outer reel end 4|. Means is also provided for locking the reel in a desired position. As best shown in Fig. 6, this means may comprise a spring pressed bolt or detent member 50, conveniently carried by the reel-hub 3|, and adapted to engage the teeth of a toothed sector suitably supported, as on the head and inlet bearing assembly 2|, 23. As shown in Figs, 6 and '7, the teeth of this sector 5| are preferably inclined so that by exerting turning force on the hand wheel 46 with the bolt 50 acting as a spring-detent, the reel may be turned. The bolt 50 is also preferably provided with a tang 52 engageable with a keeper 53 to prevent retraction of the bolt member when it is desired to fully secure the reel against rotation.

The dust hose 54, which may be a flexible hose of say 4-inch inside diameter, is coilable on and uncoilable from reel 30, and has its inner end extended through the outer end 4| of the reel and connected to an inlet casting 55, preferably by a detachable hose connector 56. As is best shown in Fig. 6, the inlet casting 55 is rotatably connected to the separator l6 by securing said casting to the inlet sleeve 32, as by the screw threaded connection shown, which may be firmly anchored against loosening, as by one or more set screws 51. The inlet casting 55 is thus arranged to rotate with reel 30, while maintaining continuous communication of the hose 54 thereon with the inlet to the separator l6.

' As is best shown in Figs. 1 and 4, the hose 54 is preferably paid out in an overhand manner from the top surface of the reel 30, which in the usual installation will be at a height of seven feet or so above the floor. This also is preferred as it facilitates reeling of the hose.

The payed out end of the hose, as is usual in such installations, is preferably provided with a collecting nozzle (not shown), which may have a rotatable connection with the hose end and be provided with a cut-off damper and other accessories, asis well known to the art.

As is clearlyshown in Fig. 1, means is provided to support the payed out portion of the hose, to aid in positioning its collecting end, preferably in the form of an adjustable boom 60. This boom preferably comprises two telescoping sections, the upper section 6| being rod-like and terminating in a U-shaped fork or guide 62 in which the hose is supported, and the .1ower section 63 being tubular and pivotally mounted in the rotatable collar |4 carried by the standard In, as above described. An extensible pivoted and rotatable boom is thus provided. An adjusting clamp 64 is provided for maintaining the desired extension of the boom. This clamp 64, in the form shown, is welded or otherwise secured to the boom section 63, and is arranged to be contracted to grip the upper section 6| of the boom. Means is also provided to adjust the inclination of the pivoted boom 60, herein in the form of a flexible guy wire or the like 65 having one end secured to the boom, and adapted to be snubbed on a two-pronged cleat 66 carried by the rotatable separator assembly. Conveniently the guy 65 is secured to the boom by attachment to a ring 61 which may be carried by the clamp 64 as shown.

In the usual installation a reel having a diameter of about two and two-thirds feet may be employed to releasably store in excess of six feet of hose per turn. With such capacity the adjustable boom conveniently may be arranged to afford support for the hose substantially in line with the upper surface of the reel, at distances of from three to eight feet from the reel axis, for

example. I

With the arrangement shown in the drawings, the unneeded portions of the bulky dust hose are conveniently and compactly stored, in an out-of-the-way and protected manner, without disconnection from the separator. When the extension of the hose is desired the operator may release bolt 50. Preferably he turns the reel with the bolt tang 52 simply freed from its keeper 53. The spring pressed detent effect then obtained facilitates the unreeling of exactly the amount of hose desired, and prevents running away of the reel. In re-reeling, the detent effect of the spring pressed round-nosed bolt 50 in the bevelled teeth of the sector 5| may also be employed, since it may be arranged to offer but little resistance to the turning of the reel by the hand wheel, while preventing backing up of the reel if the operator releases the hand wheel. Turning of the tang 52 into its keeper 53 locks the reel firmly in any desired position, and may conveniently be employed when it is desired to adjust the length and angularity of the boom 60. The overhand reeling and unreeling of the hosepreferably employed assures tight wrapping thereof on the reel drum, and insures paying-out as opposed to turnloosening in the unreeling of the hose. When it is desired to change the direction of extension of the dust collecting hose from the vertical axis of the collector, the clamp |5 may be released and the hose, separator, reel, and boom may then be swung as a unit to any desired position about this axis.

The scope of the invention appears from the attached claims, and is not limited to the illustrative embodiment shown.

What I claim is: v

1. In a dust collector, a support, anelongated generally cylindrical chip separator rotatably mounted thereon for rotation thereabout with the axis of the cylinder substantially perpendicular to the support, a suction conduit communicating with said separator through a swivelled connection and extending axially out from the separator, a reel encircling said separator and conduit and rotatably carried by them, and a suction hose carried by said reel and communicating with said conduit.

2. In a dust collector, in combination, a hollow vertical standard, a suction off-take above the standard and aligned therewith, a generally cylindrical chip separator rotatably mounted therebetween rotatable relative thereto and communicating therewith, said chip separator having its axis horizontal and having an axially projecting inlet, a reel rotatably mounted on and encircling said separator and inlet, a suction hose carried by said reel, and a swivelled connection from said hose to said inlet.

3. The combination as defined by claim 2 in which the reel coaxially encircles one side of the chip separator and the rotation axis of the separator is on its other side.

4. The combination as defined by claim 1 in which the support is hollow, at one end holds the chip separator and at the other end is connected to an enlarged chip collector.

5. In a dust collector a vertically extending enlongated hollow support, a generally cylindrical chip separator journalled on the support with its cylindrical axis horizontal for rotation about the support, a suction off-take connected to the separator for applying suction thereto, a suction conduit swivelled to the separator in projecting axial relation, a hose-receiving reel fixed to the suction conduit and coaxially encircling at least one end of the separator to rotatably carry a suction hose connected to the inlet for 6 adjustable positioning about and at selectable distances from the support.

6. The combination as defined by claim 5 and further including hose-supporting elements of extensible length adjustably secured to the lower portion of the support and directed upwardly for engagement with the lower surface of a hose carried by and unreeled from the reel at a point spaced from the reel.

7. The combination as defined by claim 5 in which the reel has a hub and two side walls and one of the side walls has a larger radius than the other and projects out as a hand wheel for the reel.

8. The combination as defined by claim 5 and further including restraining structure connected to the reel for adjustably holding the reel in selectable conditions of rotation.

WALTER O. VEDDER.

REFERENCES CITED The following references are or record in the file of this patent:

UNITED STATES PATENTS Number Name Date 739,263 Kenney Sept. 15, 1903 1,231,778 Nall July 3, 1917 1,484,681 Tamarin Feb. 26, 1924 1,659,088 Dowdall et a1. Feb. 14, 1928 1,787,646 Smith Jan. 6, 1931 1,809,337 Hall June 9, 1931 2,499,037 Roles Feb. 28, 1950 FOREIGN PATENTS Number Country Date 743,040 France Jan. 6, 1933

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