US1005290A

US1005290A - Compressed-air carpet-cleaner.

Info

Publication number: US1005290A
Application number: US278010A
Authority: US
Inventors: Edwin E Overholt
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-05-24
Filing date: 1905-09-11
Publication date: 1911-10-10
Anticipated expiration: 1928-10-10

Description

E. E. OVERHOLT. coMPREssBD AIR GABPBT ULBANER. APPLICATION FILED SEPT. 11, 1905.

1,005,29U. Patented Oct. 10,1911.

col. UIMA mmm C0.. WASHINGTON. n. t.

j position by screws UNITED STATES PATENT OFFICE.

EDWIN E. OVERI-IOLT, 0F WASHINGTON, DISTRICT 0F COLUMBIA.

COMPRESSED-AIR CARPET-CLEANER.

nooaaeo.

Specification of Letters Patent.

Original application filed May 24, 1902, Serial No. 108,815. Divided and this application led. September 11, 1905. Serial No. 278,010.

To all whom 'it may concern:

Be it known that I, EDWIN E. OvERHoL'r, citizen of the United States, residing at Washington, in the District of Columbia, have invented. new and useful Improvements in Compressed-Air Carpet- Cleaners, of which the following is a specification.

My invention relates to compressed air carpet cleaners, being a division of application Serial No. 108,815 dated May 24, 1902.

My object is to provide a machine lfor cleaning carpets on the floor which will readily remove carpet as well as from the top thereof, thereby cleaning not only the carpet but also the floor; which will be unusually light for handling: and which will do the required work with a minimum expenditure of air.

In the accompanying drawings, Figure 1 is a vertical transverse section of Fig. 2 taken on the line 11 of Fig. 2. Fig. 2 is a plan view showing the bottom of the device. Fig. 3 is a plan view of the pressureequalizing plate, and; Fig. 4 is a sectional view of the nozzleron an enlarged scale, showing the means of securing the same to the body of the device, and of adjusting it relatively thereto.

The numeral 1 designates the body of my device, having on its top side an air chamber divided into upper and lower compartments 2 and 3 respectively by the l'ngitudinally extending plate 4. The compartment 2 communicates with a pipe 5 which is connected with a source of supply of compressed air. The plate 4 is supported in On the under side of the body 1 is a downwardly extending nozzle 7, surrounded by the downwardly extending continuous flanges 8 and 9. These flanges extend to the working plane of the body 1, and are adapted to rest upon the top of the carpet; while the nozzle 7 projects beyond said plane to be forcibly pressed into the pile of the carpet, and to be deeply embedded therein. By this arrangement a great part of the weight of the device is borne by the nozzle, care being taken that the iianges 8 and 9 shall not project below the working plane of the device, as that would cause said flanges to support a perceptible part of the weight of the device, and would by that much lighten the pressure upon the nozzle 7, which is not desirable.

dust from underneath the The nozzle is secured to the body 1 by means of screws or bolts as illustrated in Fig. 4; and between the nozzle 7 and said member may be interposed, from time to time, one or more strips of thin material 10 to increase the projection of the nozzle to compensate for wear on the working face thereof, and to adapt the nozzle for use on carpets having pile of more than the ordinary depth. The nozzle has a central outlet 11 and the width of this outlet may be regulated by the screws 12.

When the device rests upon the surface of a carpet the flanges 8 and 9 form chambers surrounding the nozzle with one chamber surrounding the other chamber. The chambers underneath the machine are adapted to be put into communication with each other when desired by means of the conical openings 18 in the flanges. These openings receive the plugs 14 when it is desired to cut off communication between said chambers. The body 1 is provided with similar openings and

plugs

15 and 16 respectively. A suitable curved rod or bar 17 is secured to the top of the body 1 and supports a dust hood. The equalizing plate 4 has apertures for the passage of air from the chamber 2 into the chamber 3. These apertures are smallest at the point opposite the air inlet where the pressure of air is the greatest, and they gradually increase in size toward the ends of the plate toward which the pressure gradually becomes less, thereby serving to equalize the air pressure throughout the entire length of the chamber 3 and of the slit 11 leading therefrom through the nozzle.

In operation, the body 1 rests fiat upon the carpet with suificient pressure only to prevent the dust-laden air from escaping around the sides 18 thereof,the nozzle being arranged to project suiiiciently to support the rest of the weight of the device; so that the nozzle is pressed forcibly upon the pile of the carpet, and by reason of such pressure is deeply embedded therein. Hence it will be seen that that portion of the carpet which is being acted-upon at any given instant-namely, the portion immediately beneath the nozzle-is literally compressed between the nozzle and the floor, so that the blast of air is delivered, not upon loose pile-or fabric-but upon compressed pile. Moreover, the air delivered under pressure is thereby not only delivered deep down in v extending through said opening to the pile of the carpet in position to most advantageously act upon thesame, but is also delivered so close to the floor, that a goodly portion thereof passes through the carpet and strikes the floor with great force, and rebounds up through the carpet on either side of t-he nozzle, carrying up with it the dust from underneath the carpet.

If the apertures 13 are closed the air will be compelled to dive under the flanges 8 and 9 into the pile of the carpet and finally escape around the edges 18 of the body member. If the plugs 14 are removed the air will not have to pass under the flanges in order to escape: and if the plugs 16 are removed the 'dust laden air will escape upwardly into the h'ood.

Having thus described my invention what I claim as new and desire to secure byLetters Patent is: Y

1; A compressed air carpet cleaner comprising a body having an opening; and a nozzle arranged to project through said opening beyond the working face of said body. v

2. A compressed air carpet cleaner comprising 'a body having an .'opening; and a nozzle rigidly connected to said body, and a point below the working faceof said body.

8. AA compressed air carpet cleaner comprising 'a body havin a chamber on `its underside, and a working face surrounding said chamber and adapted to rest on the carpet; and a delivery nozzle also provided with a 'working face adapted to engage the carpet, said face being flat 'and disposed in a plane parallel with the working face of the body kof the device, said nozzle being located in said chamber at a point spaced from the front land rear sides lthereof and thereby adapted to engage a portion of the carpet spaced on both its front a'nd rear sides from the portionengaged by the working face of the body of the device, said nozzle beingarranged vto project below said working face ofthe body ofthe 'device to continuously and forcibly press said spaced portion of the carpet, and having 'its outlet at a point "between the front and rear sides of the working Vface of *the nozzle, whereby t-he blast from the nozzle is delivered into said compressed portion of the carpet at a ,f point between the margins of said compressed portion, vand not at one side or the other thereof.

4. A compressed air carpet cleaner comprising "a body having a chamber on its under side, land a working face surrounding said *chamber and adapted -to rest -on the carpet; and =a delivery nozzle `also providedwith a working face adapted to engage t'he carpet, said face being flat and disposed ina plane `parallel with the working face '-of 'the body :of *the device, said Y p'rising a -body adapted to nozzle being located wholly within said chamber at a point s aced from the front and rear sides thereofp and thereby adapted to engage a portion of the carpet spaced on bot-h its front and rear sides from the portion engaged by the working face of the body of the device, said nozzle being arranged to project materially below said working face of the body of the device to continuously and forcibly compress between the nozzle and the Hoor said spaced portion of the carpet, and having its outlet opening in an approximately vertical direction at a point between the front and rear sides of. the working' face of the nozzle; whereby the blast from the nozzle is delivered in a vertical direction into said compressed portion of 'the car et at a point between the margins of sai 'compressed portion, and not atan angle at one side or the other thereof.

5. In compressed air carpet cleaners, a body adapted to rest upon the carpet and provided with a plurality of chambers on its under side, one surrounding another; and a nozzle operating within the inner one of said chambers, and spaced from the front and rear sides thereof.

6. A compressed air carpet cleaner comrest on the carpet and provided on its under side with an inner chamber and an outer chamber having independent dust outlets, and being arranged forcommunication with the inner chamber; a nozzle located within the inner chamber at a point spaced from the front and rear sides thereof; and means for 'controlling communication between said chambers as may be desired.

In compressed air carpet cleaners, a body adapted to rest upon the carpet and provided with chambers on its Iunder side, and vhaving openings leading up through said body from its under side; means for controlling said openings as lmay 'be desired, and a blast nozzle in the central one of said chambers.

8. A compressed air'carpetcleaner havin an elongated air chamber and an elongated opening leading therefrom for the delivery of compressed air to the work, said chamber having a single inlet opening for conveying the compressed air thereinto; and means inside said chamber, located between the single inlet thereto and the outlet 4therefrom, for equalizing the air pressure at all poi-nts in said elongated outlet.

9. A compressed air carpet cleaner having an elongated air chamber and an elongated opening leading therefrom for the delivery of compressed air tothe work, said elongated `chamber having a single inlet, opening approximately central thereof, for conveying thecompressed air thereinto; and a distributing plate inside said chamber between the single inlet leading directly thereinto and the outlet leading therefrom, said plate being provided With graduated openings for equalizing the air pressure at all points in said elongated outlet.

10. A compressed air carpet cleaner oomprising a body having a Working face; a nozzle arranged to project beyond the Working face of said body; and means for changing the distance the nozzle is arranged to 10 project.

In testimony whereof I affix my signature, in presence of two subscribing Wit- Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

. Washington, D. C.