US1116194A - Vacuum-producer. - Google Patents

Description

J. WYNN, JR. VACUUM PRODUCER.

APPLICATION FILED 00119, 1912.

Patented NOV. 3. 1914.

FIG 2 FIGJ 1X 1 1 1 I 1 q 1 INVE NTOR u: Wywuurh ATT ORNIY B provide an impeller having a JOHN wvNN, an, I PANY, or CANTON, OHIO, A. M. GROSSMAN, or CANTON, omo.

01E CANTON, OHIO, ASSIGNOB TO CLIMAX. MANUFACTURING GOM- COIPARTNERSHIP COMPOSED OF T. J. THOMAS AND VACUUM-PRODUCER.

iaiaioa.

Specification of Letters Patent.

Patented Nov. 3, 1914.

Application filed October 19, 1912. Serial No. 726,769.

To all whom it may concern I Be it known that I, JonN WYNN, Jr, a citizen of the United States of America, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful l mprovcmmits in Vacuum- Producers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a vacuum producer especially designed for the centrifugal type of vacuum cleaning devices.

The primary object of my invention is to provide a revoluble impeller of small cross sectional area. that produccsa mammum suction within a casing with a minimum expenditure of power, the construct on of the member being such that the resistance to a movement of said member is reduced to a minimum.

A further object of the invention is to improve generally upon the term of contriiugal fan, now in general use, in regard to the inherent regulation of the capacity of air displacement, without sacrificing or reducing the vacuum producing quality of the apparatus itself.

Another object of this invention is to and radially disposed outlet that creates a vacuum in a casing when the impeller is revolved therein.

A further object of this invention is to accomplish the above results by a mechanical construction, that is simple, durable, in expensive to manufacture and highly efficient as a practical im )eller for the production of vacuum and dis )laoernent of air.

With the above and ot or objects in view the invention resides in a novel construction, combination and arrangement of parts to be hereinafter specifically described and then claimed,

Reference will now be had tothe drawing, wherein .Figure 1 is a vertical sectional view of the impeller, in accordance with this 1nvcntion, as arranged in a casing. Fl 2 is an edge view of the impeller, and Fig. 3 1s a side elevation of a portion of the same.

An impeller in accordance wlth this mcentral intakevention comprises two thin disks 1 and 2 riveted or otherwise connected together, as at 3, whereby the portions of the periphery of the impeller, other than the portions constituting the outlet ends for the air passages or channels, to be presently referred to. will be sealed. The sealing of the periphery at the points referred to will reduce resistance to a minimum during the operation of the im eller.

The dis 5 1 and 2 are formed with radiall disposed confronting offset portions 4 an 5 and the said confronting offset portions provide radially disposed air passages or channels substantially oblong or oval-shaped in cross section at any point throughout their length, and which extend from a point near the center of the said disks 1 and 2 to the fperiphery thereof. The offset portions 4: o' the disk 1 intersect each other at the center of said disk and the oilset portions center of: the disks 2, and the said interseetin portions oppose each other and provire what is termed an air expansion chamber for a purpose to be presently reu of the disk 2 intersect each other at the ferred to. The intersection of the offset por tions 4 is provided with an opening 6, the latter being disposed centrally of said intersection and constitutcs an intake. The opening (5 is of such diameter as not to completely take up the entire area of the said intersection in which said opening is arranged so that the offset portions at at their inner ends can merge into each other. The

intersection of the offset portions 5 of the disk 2 is cut away to provide a central opening 7 and which is of less diameter than the opening 6. The combined area of the inlets for the air passages or channels is of less area than the area of the intake opening 6 so that the air channels will only take up the amount of air what they require, under such circumstances providing the impeller with a self inherent throttle and thereby obtain a continuous uniform movement of the impeller when the latter is operated.

The expansion chamber is employed to prevent eddies in the air supplied thereto through the intake when a change in direction of ilovv of the air is had, which change in direction of flow occurs as the air is discharged from the chamber through the air channels or passages as these latter are disposed at an angle With respect to the in take 6.

Mounted in the opening 7 is the end of a hub 8 and which is provided with radially disposed lugs 9, riveted or otherwise connected-as at 10 to the offset portions 5 of the disk 2, 'l'he huh 8 is mounted upon a "revoluhle shaft 11 associated With an op erating means therefor, by Way of example the operating motor employed in vacuumcleaning devices or other apparatus,

The disks 1 and 2 constitute a revoluble bladeless Wheel or impeller and Which is inclosed by a flat circular casing having Walls 12 and 13, the latter being detachable relatively to the former, The peripheral edge of the Wall 12 terminates in a cylindrical conduit 1d, and said Wall has a central neck 15 that extends into the opening 6 of the offset portions l of the disk 1, said neck serving as an inlet to the channel of said impeller.

The centrifugal or rotary movement of the impellervvithiu the casing produces an out-draft or suction in the channel formed by the ofiset portions i and 5, and as the cross sectional area of the member that revolves Within the casing has been reduced to a minimum and the longitudinal edges of the ofiset portions l and 5 rounded or tapered, the member ofiers little or no resistance, consequently there is no retardation or re-action Within the casing that would tend to impair the vacuum producing quality of the rotary member or'iirn- ;peller.

The portions of the impeller between the air channels provides What may be termed a dead space, the said portions being sealed, due to the fact that the disks are fixedly secured together, under such conditions the air from the intake can only be conducted through the channels and not between the portions of the disks interposed between the channels and this space Which is termed dead space reduces the capacity of the impeller.

It is thought that the operation and utility of the vacuum producer Will be apparent Without further description, and While in the drawing there is illustrated a preferred embodiment of the invention, it is to be understood that the structural elements are susceptible to such variations and modifications as fall within the scope of the appended claims What l claim is z 1. An impeller for moving fluid which consists of a rotary body provided with an intake opening in one side and with passages extending from near its center toward its periphery, in whic ssages centrifugal motion is imparted to '1 ud passing through them, and with an e sion chamber be tween said intake openin and the inlets to said passages, the area oi said intake being {greater than the sum of the areas of. said inlets. f

2. ln a vacuum producer for a vacuum cleaning device of the centrifugal type, an impeller consisting of a, pair of disks fixedly secured together and formed With spaced radially disposed otiset portions, the offset portions of one disk registering With the said offset portions of the other disk providing air channels, said channels being uninterrupted from end to end and With the Walls thereoi smooth throughout thereby providing for the continuous discharge of air free from eddying and back-lashing, said ofiset portions intersecting each other at the centers of said disks, one of said intersections cut away to provide a central intake open,- ing of a diameter less than the Width breadth of the said intersection.

8. In a vacuum producer for a vacuum cleaning device of the centrifugal type, an

impeller consisting of a pair of disks fixedly and I 4 secured together and formed with spaced radially disposed offset portions, the ofiset portions of one disk registering With the offset portions of the other disk providing air channels producing a smooth flow, said channels being uninterrupted from end to end and with the Walls thereof smooth throughout thereby providing for the continuous discharge of air free from eddying and backlashing, said offset portions intersecting each other at the centers of the disks, one of said intersections cut away to provide a central intake opening of a diameter less than the Width and breadth of said intersection, the area of said intake opening being greater thanthe; combined area of the outlet openings of the channels.

i. in a vacuum producer for a vacuum cleaning device of the centrifugal type, an-

of the channels at their inner termini rounded thereby producing a continuous smooth flow of air at the intake during the operation of the impeller, one ofsaid intersections cut awayto provlde a central intake opening of a dlameter less than the Width and its breadth of the said intersection and of greater area than the combined area of the outlet openings of the channels.

5. In vacuum producers for vacuum cleaning machines of the centrifugal type, an 1mpeller formed of a circular member having radially disposed air channels intersecting at their inner termini and extending from the center of said member to the periphery thereof, the walls of said. channels at the intersection thereof being rounded to produce a continuous smooth flow of air at the intake of the channels durin the operation of the impeller, said meniber further provided with a central disposed intake opening communicating with the inner termini of said channels, said channels being uninterrupted from end to end and having the walls thereof smooth throughout there by providing for the continuous discharge of air free from eddying and back-lashing during the operation of the impeller.

6. In vacuum producers for vacuum cleaning machines of the centrifugal type, an impeller formed of a circular member having radially disposed air channels intersect-- ing at their inner termini and extending from the center of said member to the pe riphery thereof, the walls of said channels at the intersection thereof being rounded to produce a continuous smooth flow of air at the intake of the channels during the operation of the impeller, said member further provided with a centrally disposed intake opening communicating with the inner termini of said channels, said channels being uninterrupted from end to end and having the walls thereof smooth throughout thereby providin for the continuous discharge of air free from eddying and back-lashing during the operation of the impeller, the area of said intake opening being greater than the combined area of the outlet openings of the channels.

7. In vacuum roducers for vacuum cleaning machines of the centrifugal type, an impeller formed of a circular member having radially disposed air channels intersecting at their inner termini and extending from the center of said member to the periphery thereof, the walls of said channels at the intersection thereof being rounded to produce a continuous smooth flow of air at the intake of the channels during the operation of the impeller, said member further provided with a centrally disposed intake opening communicating with the inner termini of said channels, said channels being uninterrupted from end to end and having the walls thereof smooth throughout thereby providing for the continuous discharge of air free from eddying and back-lashing during the operation of the impeller, said channels being substantially oval-shaped in transverse section.

8. In vacuum producers for vacuum cleaning machines of the centrifugal type, an impeller formed of a circular member having radially disposed air channels intersecting at their inner termini and extending from the center of said member to the periphery thereof, the walls of said channels at the intersection thereof being rounded to produce a continuous smooth flow of air at the intake of the channels during the operation of the impeller, said member further provided with a centrally disposed intake opening communicating with the inner termini of said channels, said channels being uninterrupted from end to end having the walls thereof smooth throughout thereby providing for the continuous discharge of air free from eddying and back-lashing during the operation of the impeller, the portions of said impeller between the sides of said channels being of less thickness than the width of the channels.

9. In vacuum producers for vacuum cleaning machines of the centrifugal type, an impeller formed of a circular member having radially disposed air channels intersecting at their inner termini and extending from the center of said member to the periphery thereof, the walls of said channels at the intersection thereof being rounded to produce a continuous smooth flow of air at the intake of the channels during the operation of the impeller, said member further provided with a centrally disposed intake opening common to the inner termini of said channels, said channels being uninterrupted from end to end and having the walls thereof smooth throughout thereby providing for the con tinuous discharge of air free from eddying and baclclashing during the operation of the impeller, said channels being substantially oval-shaped in transverse section at any point throughout their length and each of said channels being of the same area from end to end.

10. In a vacuum producer for a vacuum cleaning device of the centrifugal type, a rotary impeller formed of a pair of thin disks fixedly secured together with their in nor faces abutting and having registering oil'sct portions providing radially disposed air channels having the walls thereof smooth throughout thereby providing for the continuous discharge of air free from eddying and back-lashing, one of said disks cut away to provide an intake common to all of said channels, and the other of said disks adapted to have secured thereto means for operating the impeller, said channels being ovalshaped in transverse section.

11. In a vacuum producer for a vacuum cleaning device of the centrifugal, type, a rotary impeller formed of a pair of thin disks fixedly secured together with their inner faces abutting and having registering Liza p 4 ofi set portions providing radially disposed uninterrupted air channels having the walls thereof smooth throughout thereby provid ing for the continuous discharge of air free from eddying and back-lashing, said ofiset portions intersecting at their inner termini, one of said intersections cut away to provide an intake common to all of said channels and the other of said intersections adapted to have secured thereto means for operating the impeller, said channels being oval-shaped in transverse section.

12. In a vacuum producer for a vacuum cleaning device of the centrifugal type, a rotary impeller formed of a pair of thin disks fixedly secured together with their inner faces abutting and having registering offset portions providing radially disposed uninterrupted air channels having the walls thereof smooth throughout thereby providing for the continuous discharge of air free from eddying and back-lashing, said ofi'set portions intersecting at their inner termini, one of said intersections cut away to provide an intake common to all of said channels and the other of said intersections adapted to have secured thereto means for operating the impeller, the area of said intake opening being greater than the combined area of the outlets of the channels to throttle the air discharged thereby preventing destructive overloading of the prime mover for the impeller.

13. In a vacuum producer for a vacuum cleaning device of the centrifugal type, an impeller formed of a circular member having radially disposed air channels intersecting at their inner termini, the walls of said channels at the intersections thereof'being rounded thereby producing a continuous flow of air at the intake during the operation of the impeller.

14. In a vacuum producer for a vacuum cleaning device of the centrifugal type, an impeller having oppositely disposed registering offset portions providing air channels uninterrupted from end to end and with the walls thereof smooth throughout, said offset portions intersecting each other at the centers of the disks, one of said intersections misses cut away to provide an intake, the area of the intake being greater than the combined area of the outlet openings of the channels.

15. In a vacuum producer for a vacuum cleaning device of the centrifugal type, a rotary element having a centrally disposed chamber having the side walls thereof offset with respect to each other, said element further provided with radially disposed air channels communicating with said chamber, one of said offset portions cut away to provide a central intake opening of less diameter than the width and breadth of the said ofiset portion, the area of said intake opening being greater than the combined area of the outlet openings of the channels.

16. In a vacuum producer for a vacuum cleaning device of the centrifugal type, a rotary element having a centrally disposed chamber having the slde walls thereof offset with respect to each other, said element further provided with radially disposed air channels communicating with said chamber, one of said offset portions cut away to provide a central intake opening of less diameter than the width and breadth of the said offset portion, the area of said intake opening belng greater than the combined area of the outlet openings of the channels, the walls of said channels at the points of communication between the channels and the chamber being rounded, thereby producing a continu ous flow of air at the intake during the operation of the element.

17. In a vacuum producer for a vacuum cleaning deviceof the centrifugal type, an impeller formed of a circular member having air channels intersecting at their inner termini, the walls of said channels at the intersections thereof bein rounded thereby producing a continuous li ow of air at the intake during the operation of the impeller.

In testimony whereof I aflix my signature in the presence of two witnesses.

JOHN WYNN, JR.

Witnesses:

MAX II. SRoLovrrz, Kn'rnnmnn Enema.

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