US1093473A - Vacuum-cleaner. - Google Patents

Description

Patented AprQ14, 1914.

INVENTOR v WITNESSES:

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TE STATES AT VACUUM-CLEANER.

To all whom it may concern Be it known that I, EDWIN A. Rnnvns, a citizen of the United States, residing at Milford, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Vacuum- Cleaners, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to a new and improved vacuum cleaner of the manually operated type, and has for its object, among other things, to increase the eificiency of such cleaners, and to simplify the mecha nism thereof, more particularly as it relates to the dust retaining means.

To these, and other ends, my invention consists in the vacuum cleaner, having certain details of construction and combinations of parts, as will be hereinafter described and more particularly pointed out in the claim.

In the drawings, to which reference is hereby made; Figure 1 is a side elevation of my improved vacuum cleaner, complete; and Fig. 2 is an enlarged sectional view thereof upon line AB of Fig. 1.

I have only shown such details of this vacuum cleaner as are necessary for a thorough understanding of the present invention.

In brief, the cleaner consists of a body, having two cylinders,the vacuum cylinder 1 and the piston cylinder 2,both being separably secured together, and within the latter is a piston that is operated by a handle 3. A cylindrical head 4 closes the open end of the piston cylinder 2 and a conical head 5 the lower end of the vacuum cylinder 1. The dirt is sucked in through the nozzle 6 by manipulation of the piston through the handle 3 in a well known manner.

This invention, as above indicated, has especial reference to the mechanism for gathering the dust, usually mounted within the vacuum cylinder, and in most vacuum cleaners is a cloth bag, so arranged that its open end is toward the piston, which prevents the dust from passing into the piston chamber and allows it to accumulate within the vacuum cylinder. This bag, or more properly a cloth screen is held in its extended position by wires, springs or similar devices. I have redesigned this mechanism so that the dust bag is held with its open end away from the piston, have discarded all of the Specification of Letters Patent.

Application filed September 11, 1913.

Patented Apr. 14, 19141.

Serial No. 789,374.

devices used to keep the bag distended, and retain the dust within the bag itself instead of the vacuum cylinder. By this invention I am enabled to use a much larger bag than has heretofore been possible, more dust is accumulated, and less frequent emptying of the bag is required. The bag may be of coarser and less expensive material, as it is not necessary to have so fine a mesh as here tofore. More dust can also be drawn up through the nozzle with the same suction area of the piston, as the bag is larger and the mesh more open, hence substantially the entire suction of the piston is felt at the nozzle, no portion thereof being lost owing to the fine mesh of a very much restrict-ed surface of a dust bag or screen.

In the drawings the numeral 7 designates the dust bag, which is closed at its inner end 8 and connected at its open end to a collar 9 by a band 10 that surrounds said collar and holds the bag therebetween, a plurality of corrugations 12 in the band 10 intermeshing with a plurality of similar corrugations 13 in the collar 9, to accomplish this result. The band 10 is preferably applied by winding the same about the bag and securing the ends at 11 together by solder or other means. The collar 9 is threadably secured to a flange 14: fixed to the plate 15 forming one end of the conical head 5 and concentric with the threaded flange 16, to which the vacuum cylinder 1 is threadably secured. Concentric with the axis of said bag, cap and conical head, is a nozzle tube 17 that terminates adjacent to the closed end of the bag, and projects outwardly beyond the said conical head with which it is connected, through the plate 15 and the conical shield 18. A nozzle 6 is attached to the lower open end of the said tube 17 In operation the suction created by the movement of the piston reaches the nozzle 6 by passing through the bag 8 and nozzle tube 17, and the dust sucked through the nozzle 6 passes through said tube 17 and is deposited in the bag, first filling the inside of the collar 9.

To remove the accumulated dust and dirt, the head 5 is unscrewed from the vacuum cylinder 1 and then the collar 9 from the threaded flange 14c, and the dust, all contained within the bag and collar, emptied into any receptacle conveniently arranged to receive it.

There are minor changes and alterations that can be made Within my invention, and I would therefore have it understood that I do not limit myself to the exact construction herein shown and described, but claim all that falls fairly within the spirit and scope of my invention.

I-Iaving described my invention, what I claim as new and desire to secure by Letters Patent, is:

In a vacuum cleaner, the combination with a cylinder; of a head connected therewith, having two concentric parallel flanges thereon, by one of which said head is sepa-rably secured to said cylinder; a tube connected with said head and projecting upon both sides thereof; a dust bag covering that portion of said tube that projects upon one side of said head; and a collar fixed to the open end of said dust bag at one end and separably secured to the second flange upon said head at its opposite end.

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

EDWIN A. REEVES.

WVitnesses GEORGE E. HALL, WALLACE S. MOYLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

"Washington, D. G.

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