US1134022A - Cleaning apparatus. - Google Patents

Description

I. H.-SPENCER. GLEANING APPARATUS. APPLICATION FILED MAY 31, 1907.

Patented Mar. 30, 1915.

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IRA H. SPENCER, 0F HARTFORD, CONNECTICUT, ASSIG-NOR, BY MESNE ASSIGNMENTS,

TO THE SPENCER TURBINE CLEANER COMPANY,

CCBPCRATION OF CONNECTICUT.

CLEANING AP]? 1.

0F HARTFORD, CONNECTICUT, A

T'US.

Specification of Letters Patent.

Patented Mar. 3th, 31915.

Application filed May 31, 1907. Serial No. 376,608.

To all whom it may concern.-

Be it known that T, IRA H. SPENCER, a citizen of the United States, and a resident of Hartford, in the county of Hartford and State of Connecticut, have invented a new and Improved Cleaning Apparatus, of which the following is a specification.

My invention relates to the construction of cleaning apparatus designed to remove dust, trash, litter and the like by means of a confined stream of air that is drawn inwardly through a cleaning tool which is adapted to be applied to the surface of the object to be cleaned, the dust and trash transported by the stream being collected by suitable arresters and the air being permitted to pass to the atmosphere.

More especially, my invention relates to that type of suction cleaning apparatus wherein a multi-stage fan is employedfor inducing the desired operating conditions in the confined stream of air.

The principal object of the invention, generally stated, is to produce a simple, eflicient and durable device of this character which is compact in form and which may be operated with an economical expenditure of power. This object is tain relative arrangements of the parts of the apparatus and by the employment of dust and trash collecting receptacles that are designed with special reference to their use in conjunction with suction creating apparatus of the fan type, as will hereinafter appear.

In the drawings illustrating my invention, the scope whereof is pointed out in the claims, Figure 1 is a view, partly in side elevation and partly in vertical central section, showing a cleaning apparatus embodying my invention; Fig. 2 1s a sectional view taken in the plane of the line 2-2, Fig. 1, portions of the cupola and the dust and trash receptacles being broken away to show the construction of these parts; Fig. 3 is a detail horizontal section through the accomplished by cer-.

rotate in proximity to which extends transversely art to which it apprtains may apply the same.

The suction creating device in the type of apparatus to which my invention relates is a multi-stage fan by means of which a partlal vacuum is constantly maintained at the inlet orifices of the cleaning tools when the apparatus is in operation. The suction creating device A of this type illustrated in the drawings embodies a generally cylindrical fan casing 9 which is divided into a series of communicating compartments by transversely extending partitions 10 each of which is preferably provided with a plurality of curved vanes 14 that project outwardly from those faces of the partitions 10 which are nearer the intake end of the casing. Journaled on the casing 9, as, for example, in bearings 17, is a shaft 11 which extends lengthwise of the casing, passing through the centrally disposed circular orifices 15 in the transversely extending partitions 10. Upon this shaft is rigidly mounted a plurality of fans each of which may be conveniently formed as a disk 12 having a plurality of projecting blades 13. Each of the several interior chambers of the casing 9 contains one of these fans, the front edges of the blades 13 thereof being arranged to the plane face of the adjacent casing partition 10. The cylindrical area between each fan disk 12 and its adjacent partition 10 on a circle located at 16, at what I term the throat, is referably approximately equal to the area 0 the opening 15 in the adjacent partition.

Mounted upon the fan casing 9 and rising which are housed a plurality of receptacles for arresting and collecting the dust, trash and litter transported by the confined stream of air. For the sake of brevity these receptacles will be hereinafter referred to merely as dust arresters or receptacles.

At its upper end the cupola 18 is provided with an air inlet pipe 19 which,'by means of couplings 6, communicates with cleaning tools 33 through flexible tubing or hose 7. The air inlet pipe 19 opens into a receiving receptacle which is preferably in the form of a trap, such trap comprising a casing 20 through the cupola near the top and which is provided with aremovable drawer 8 having an openber 22 downwardly through the cupola and communicates with the interior of the fan casing 9 at one end thereof. The opposite or outlet end of the fan casing communicates with an outlet conduit or passage 24 Which opens into a chamber 25 in the lower part of the cupola 18, the chamber 25 being in communication with a dust arrester or receiving receptacle which, like the dust arrester heretofore described, preferably consists of a casing 26 which is open at the top and within which is movably mounteda drawer 27 having an opening which communicates with the opening in the casing 26. Above this dust arrester and within the cupola is a transversely extending partition having a downwardly extending tubular portion that projects through the opening in the top of the casing 26 of the dust trap or arrester, such tubular portion being of less cross sectional area than that of the opening in the casing 26 to thus form a passage 28 connecting the chamber 25 with the dust arrester and to also form an outlet 29 through which the air may pass from the receiving receptacle 2 to an outlet chamber 30 within the cupola.

desired, a screen 31, as shoWn,-may be arranged Within the outlet chamber 30 so as to be interposed betweenthe outlet 29 of the dust arrester and the outlet pipe 32 leading from the outlet chamber 30. The outlet pipe 32 may be connected to a chimney or may discharge directly into the atmosphere. The cleaning tools 33 may be of any desired form. Each of them, as shown in Fig. 4, is connected to the inlet pipe19 of the apparatus by means of flexible tubing or hose 7. These tools 33, as is well own, are formed with inlet orifices through which the moving air draws dust, trash and litter from the surface or object to be cleaned. I l Iclaim: 1

1. A cleaning apparatus comprising a casing, said casing being provided with a chamber which is adjacent to and in communication with the air inlet pipe of the.

apparatus and being also providedwith a second chamber which is located-below said chamber first named, a suction creating device'movably mounted in said casing, a dust arrester arranged vertically above the portion'of said casing within which said su'ction creating device is mounted, said dust arrester being located in that said chamber of the casing which is adjacent to the air inlet pipe of the apparatus and being provided with a dust receiving receptacle into which the air inlet pipe of the apparatus projects, an air inlet pipe opening intosaid arrester, means for permitting the passage ofair from the chamber in which said arrester is located to the interior of the portion of said casing Within which said suctioncreating device is located, and a second dust arrester in communication with the air outlet end of said casing and arranged be- 7 low the dust arrester first mentioned.

2. A cleaning apparatus comprising a casing, suction inducing centrifugal means revolubly mounted in said casing and in volving a plurality of devices successlvely delivering the same volume of air from one to another and operating to successively increase the density of said air within said casing, a dust receiving receptacle having an imperforate bottom and having an outlet opening in its upper portion, an air inlet pipe opening into said receptacle, the crosssectional area of the inlet than that ofthe said receptacle to thereby permit a portion of the dirt and trash to settle in said receptacle, and means for permitting the air and finer dust to issue from the outlet opening of the said receptacle and to enter the interior of said casing at one end thereof.

3. A cleaning apparatus comprising a casing, suction inducing centrifugal means revolubly mounted in said casing and involving a plurality of devices successively delivering the same volume of air from one to another and operating to successively increase the density of said air .within said pipe being less casing, a dust receiving receptacle having an opening therein,

a drawer. movably mounted in said receptacle and having an openingwhich communicates with the opening in said receptacle, an air inlet pipe projecting into the opening in'said receptacle, the cross-sectional area of the inlet pipe being less than that of the opening in said receptacle to thus form the air and a portion of-the dust transportmeans for permitting the air issuing from said receptacle to enter the interior of said 'casmg at one end thereof, and an' outlet an outlet permitting to permit the escape of air and fine dust, means for directing the current of dustladen air downwardly within said arrester, means for permitting the air and dust issuing from said arrester to pass in a continuous stream to said suction inducing means, and a dust arrester of the dry type communicating with d to said casing an which the dust-laden air delivered by the suction inducing means passes after leaving said casing.

5. A cleaning apparatus involving a casing having an inlet opening and an outlet opening, successively acting revoluble means trifugally to progressively increase the mounted in said casing and operating genensity of the dust-laden air passing through said casing, and an arrester involving a chamber for collecting a portion of the dirt and trash by deposition due to gravity and adapted to permit the air and the remainder of the dust particles to escape therefrom and enter said casing without substantial resistance.

IRA H. SPENCER. Witnesses:

ARTHUR P. DAY, MAY 0. CARROLL.

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