US971215A - Vacuum-cleaner. - Google Patents

Description

W. H. RAKESTRAW. VACUUM CLEANER. APPLICATION FILED MAR. 31, 1910.

Patented Sept. 27, 1910.

, I INVB'NTOIZ,

T FFICE.

WILLIAM H. RAKES'IRAW, OF BLOOMINGTON, ILLINOIS.

VACUUM-CLEANER.

Specification of Letters Patent.

Patented Sept. 27, 1910.

original application filed January 21, 1909', Serial Ho. 473,487. Divided and this application filed March 81, 1910. Serial No. 552,733.

To all whom it may concern:

,Be it known that 1, WILLIAM H. RAKE- BTRAW, a citizen of the United States, residing at Bloomington, in the county of Mc- Lean and State of Illinois, have invented certain new and useful improvements in Vacuum-Cleaners, of which the following is a specification.

My invention relates to certain new and useful improvements in vacuum cleaners, the same being a division of my application filed January 21, 1909*, and bearing Serial No. 473,487.

In the drawings, F igure 1 is a side elevation of my device with certain receptacles shown in vertical section on the line 1-1 of Fig. 2 and showing certain portions broken away to illustrate detail parts; Fig. 2 is a top view of the collector receptacles with the top of the receptacles removed and with aportion of a connecting pipe and the wall of one of the receptacles broken away; and Fig. 3 is a detail view showing the. manner of pivoting a rod to the base adapted to carry a clamp at its top portion to secure dust collector receptacles upon the base, and to secure covers to receptacles.

In the drawings, A represents a base support for the dust collecting receptacles and the pump, there being provided upon the upper surface of the base circular IIbS as a within which collector receptacles are adapted to be seated.

B is a rod pivoted to the lugs b secured to the base A as best shown in Fig. 3

C and D are cylindrical receptacles provided with removable lids or covers as E F.

Gris a yoke or clamp adapted to be carried upon the rod B and the outer ends thereof to engage the lids E and F, and g is a thumb nut carried upon the upper threaded end of rod B and is adapted to be screwed up and down upon the rod for the purpose of securing the lids in place or for the pur ose of releasing engagement by yoke G 0- said lids, and permitting the rod to swing freely to one side so that the lids may be released and the receptacles removed from their seat upon base A.

H is an air inlet duct entering the receptacle O angularly with reference to the wall thereof. V

l is a portion of a hose which is adapted to be connected with head J but as the head and its connection with the collector receptacles does not form a part of this inventlon, it is deemed unnecessary to particuiarly describe its construction and connec- K is an outlet duct from receptacle (3 adapted to communicate with receptacle I), am duct being suitably secured to the walls ofeach receptacle in such a manner as to unite them. The duct K extends u wardly Within receptacle G toa oint near y at its top and is designed to be ocated so that the opening therein will be at substantially the vertical center of receptacle 0. The duct enters receptacle D at about the vertical center its wall and is adapted to discharge air thereinto tangentially with reference to the interior circumference of the receptacle D.

L is a cylindrical screen frame structure comprising a head or top portion M and a bottom portion N, and a screen 0 is adapted to connect the head and bottom portions and to form a cylindrical body, and P is a cloth covering extending entirely around the body of the frame structure L, which is designed in practice to be of a material having rather a heavy nap, as such a fabric is best suited for the purpose designed in connection with the operation of the device as a vacuum cleaner.

Q is a flanged tubular casting adapted to have a central opening and is adapted to enter an opening in the bottom of receptacle D and to be bolted to the bottom of the receptacle in the manner shown in the drawings so as to make a complete closure. The flanged tubular casting Q is formed with an ofiset therein as at 6, shown in Fig. 2, reducing the size of the upper portion thereof and upon the offset or shoulder 2' there is adapted to be placed a rubber washer or suitable gasket as is. The bottom N of the frame structure L is provided with an opening m at the center thereof which is adapted to be seated upon the ofi'set or the rubber Washer 70 thereon in such a relation as to be readily detached or separated from its support.

R is a pipe or duct communicating with the flanged tubular casting Q and wlth the pump S. As the pump referred to forms no part of my invention, it is deemed unnecessaryto enter into detail description of the same.

' In the use of the device, it is designed that when the arts are in the positions substantially as s own in Fig. 1, and through the eration of the pump,

Wlll operate, through the suction from the ump, to draw the air throu h the shoe and oseconnection into rece tac e Grand as the inlet duct H enters angu arly with reference to the wall of the rece tacle, a circular mo tion will be given to t e air, inducing centrifugal action, which will act to separate the major ortions of the dust or dirt from the air an cause it to be lodged in the bot- 4 tom of receptacle 0, and the li hter and purer air tending to the center w' rise and pass out through outlet duct K and be d1scharged tan entiallly with reference to the interior walIs of receptacle D and because of the manner of the discharge of the air into the receptacle, it will be given a circular motion, causing theair to travel around and over substantially the entire surface P of the screen frame structure L, thereby distributin the screening function of the screen rame L. The air passing throu h the cloth and wire screen covering of t e screen frame L will pass out through the opening in the flan d tubular casting Q andthence through pipe B into pump S and will escape from the pump through the outlet ducts T T. It is designed 1n practice that the pump shall be operated by hand power by substantially the'means shown in the drawings, electric or other suitable power.

When a quantity of dust and dirt has accumulated 1n receptacles C and D and upon the surfaceof screen frame L, the receptacles.

may be readily removed by unscrewing the thumb nut g and swinging the bar B sidewise, then the tops E and F may be removed and the receptacles ma be lifted togather bodily from the base, t en the screen rame may be lifted out of the receptacle D and the surface thereof dusted off and the dirt that has accumulated in receptacles C and D ma be emptied out and the receptacles place in the positions shown in Fig. 1, in readiness for operation.

What I claim and desire to secure by Letters Patent is:

1. In a device of the class described, the combination of a dust collecting receptacle provided with an opening in the bottom thereof, an inlet duct opening into said receptacle tangentially with relation to the interior surface thereof, a c lindricalscreened body supported within t e receptacle in a relation to provide an air circulating space entirely around and between the vertical walls of the rece tacle and the screened body. and provide with an opening in the bottom thereof, an outlet duct extending upwardliyl through the o enings in'the bottom of t e receptacle an the screened body, 65 and supporting the latter in a detachable suction is created, it-

or that it may be operated by" the screened body.

relation, and a vacuum pump communicat ing with the outletduct.

'2. In a device of the class described, the combination of a vertically disposed, cylindrical dust collectingl receptacle provided with an opening in t e bottom thereof, an inlet duct opening into said' receptacle at about the center of its vertical wa l and in a direction tangential with relation to the interior surface thereof, a cylindrical screened body within said receptacle having an opening in the bottom thereof, an outlet duct extending upwardly through the openings in the bottom of the receptacle and the screened body and supportin the latter in a ddzachable relation, an a vacuum pump communicating with the outlet duct.

3. In a device of the class described, the combination of a vertically dis 'osed, cylindrical dust collecting receptadle provid with an opening in the bottom thereof, an inlet duct opening into said receptacle at bout' the center of its vertical wall and tangentially with relation to the interior surface thereof, a cylindrical screened body within said receptacle provided with an opening in the bottom thereof; an outlet duct extending upwardly through the openings in the bottom of the receptacle and thescreened body provided with an offset thereon, a gasket or washer upon said offset adapted to form a seat for 4. In a device of the class described, the combination of a vertically disposed, cylindrical dust collecting receptacle provided with anoutlet duct extending upwardly through the bottom thereof, an inlet duct opening into said receptacle at about the center of its vertical wall and in a tangential relation with the interior walls thereof a cylindrical screened body within sai receptacle supported in relation to provide air circulating space between the vertical body and supported uponthe outlet duct in a detachable relation, and a vacuum pump operatively connected with the outlet stud.

5. A dust collector including an upright receptacle, a suction ipe extending vertically in the rece tac e provided with an offset to form a s oulder thereon, a closed screened body sleeved upon the suction pi e,

110 walls of the receptacle and the screened v the receptacle, a strainer on the screened suction pipe, a cloth strainer extending body and an inlet duct opening into the reabout the screened bod an inlet pipe enceptacle at about its Vertical center .and tering the receptacle at approximately its tan 'entially ith reference to the interior vertical center and discharging air into the surface thereof. l receptacle tangentially with relation to the 7. A dust collector including an upright interior surface thereof. receptacle, a lid therefor, a suction pipe ex- In testimony whereof I have afiixed my tendinw through the bottom and vertically signature in presence of two Witnesses. upwardly into the receptacle provided with WILLIAM RAKESTRAW. a reduced portion and a Shoulder thereon, Witnesses: Y

a screened body within the receptacle re- CALVIN RAYBURN,

movably seated upon the shoulder of the CHARLES M. BUCK.

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