US800292A - Pneumatic carpet-renovator. - Google Patents

Description

No. 800,292. PATENTED SEPT. 26, 1905;

. c. GUNDERSON. PNEUMATIC CARPET RENOVATOR.

APPLICATION FILED APR. 1a, 1903.

2 SHEETSSHEET i.

i 1 J1 l R W 0 lllilllllllllllllllHIIIIHIIIIIIIIlllilllllllllllliillllllillllilillflllllllli IIHNIIIIIIHIllllllflllillIIIHIHlllllllllllililllllllllll\llllllllllilllllllllilllllllllllllllflllIII]HIIIWHIIIHHIH WITNESSES: IN V N TOR.

A TTORNE Y5.

No. 800,292. PATENTED SEPT. 2 1905'.

c. GUNDBRSON.

PNEUMATIC CARPET REN0VAT0R APPLIGATION rum) APR. 1a. 1903.

2 'BEEETS-SHEBT 2.

- 1N VEN TOR.

MWM

A TTORNE Y6,

CARL GUNDERSON, ()F MILWAUKEE, WISCONSIN.-

PNEUMATIC QARPET-RENQVATOFI.

Specification of Letters Patent.

Patented Sept. 26, 1905.

Application filed April 13, 1903. Serial No. 152,229.

To all whom it may concern.-

Be it known that I, CARL GUNDERsoN, a citizen of the United States, residing at Milwaukee, county of Milwaukee, and State of .Wisconsin, have invented new and useful Improvemen ts in Pneumatic (Jarpet-Renovators, of which the following is a specification.

My invention relates to improvements in combined pneumatic carpet-renovators and dust-collectors; and it pertains more especially, first, to the air-actuated brush mechanism by which the'carpet is brushed and the dust loosened in advance of the dust-collector; second, to the suction mechanism by which the dust isdrawn from the carpet and driven into a dust-receptacle; third, to the construction of the dust-receptacle, by which the current of dust-laden air is caused to flow in a continuous circular course within and around such receptacle until its force is spent and the dust is permitted to settle before it escapes,

whereby the dust-receiving sacks or screens The construction of myinvention is further I explained by reference to the accompanying drawings, in which Figure 1 represents a front View thereof. Fig. 2 is a side view, and Fig. 3 is a horizontal section drawn on line 00 w of Fig. 2.

Like parts areidentified by the same reference-letters throughout the several views.

A represents the dust-receptacles into which the dust is forced by a current of air under pressure, which is led to the machine through the duct B, which duct B is connected with an air-compressor by flexible tubes'in the ordinary manner. same is moved backward andforward over the surface of the carpet by the operator,'while the lower end of the dust-receiving chamber C rests upon the carpet or other surface to be cleaned.

The upper end her 0 is connected with the several receptacles A through the chamber D, duct E, and branch ducts or passages F F Grand H H. The du'ct B is provided with a conical-shaped discharge end I, through which the air is caused to es-' cape in the jet or current against the apex of the conical-shaped shell J, whereby a partial of ordinary construction.

In operating thedevice the of the dust-receiving charn-' drawn from the carpet or other surface and discharged into the dust-receptacles A.

The passages F and H, through which the air enters the receptacles A, are formed at a tangent to the verticalwalls thereof, whereby as the current of air strikes the opposing wall it is given a circular course, as indicated by the arrows, and continues to revolve therein until its force is spent, when it escapes from the upper and lower ends of said receptacles through the passages L, while the dustthatis conveyed to said receptacle falls of its own I gravity into the chambers M, located at the lower, end of said dust-receptacles. The chambers M are connected with the receptacles A by the closely-fitting annular flanges N, and said chambers M may be readily removed therefrom for the purpose of discharging the accumulation of dust therefrom.

O is a reservoir for water, gasolene, or other similar liquid, which is adapted to discharge its contents. on a sheet of screen-cloth P through the discharge-duct Q, the discharge of such liquid being regulated by the valve R The liquid thus discharged on the screen-cloth is adapted to be vaporized by a current of air which is'conducted thereto from the air-pipe S through the duct T, whereby the dust is dampened and caused to settle more readily; A similar liquid-reservoir A is connected with the airtube B near its discharge end, and the discharge of liquid therefrom is regulated by a controlling-valve B of ordinary construction. The device thus far described is operative for removing dust from carpets and similar surfaces by pneumatic pressure; but the sameis made more eflicient by the application of the brush C, which is operated as hereinafter described. The brush 0 is supportedat its respective ends from the chamber C by the springs E, said springs being connected at one end to said chamber 0 by the bars a and at their opposite ends to the ends of said brush by screws 7). The brush C is given.

a rapid reciprocating motion by the piston D. The piston D is driven toward the right by pneumatic pressure and toward the left by the action of the spring E. The

bar E' and is adjusted so as to act with greater or less force against the piston by the hand-screw F, which hand-screw isalso supported from the case 0 by the screw supporting bearing G. The brush 0 is connected with the piston D through the bracket H spring E is supported from the case G by the IIO and bolt 1, one end of which bolt is rigidly aflixed to said piston and the other operates in a slot J, formed in said bracket H. Air is conducted to the cylinder J, in which said piston operates, through the pipe S and duct K. The piston D is provided with a radial duct L, which communicates with the interior of the cylinder J through the central duct M. whereby the piston D is driven toward the right against the spring E until the duct L is thrown out of communication with the duct K, when the air therein acting expansively moves said piston past the outlet-port N, when the air escapes from the cylinder and permits said piston to be thrown back to its former position by the action of the spring E, whereby the air ducts or ports K and L are again thrown into registry with each other and the air again permitted to enter said cylinder, when the action of the piston is again and continuously repeated. Thus the piston with the brush C connected therewith are caused to vibrate rapidly as the machine is moved forward over the carpet. When, however, the machine is drawn rearwardly, said brush C is tilted forward by contact with the carpet to the position indicated by dotted lines in Fig. 2, whereby the piston D, which is connected with said brush, is turned a partial revolution on its axis, and said ducts or ports K and L are thereby thrown out of registry with each other and the air is excluded from said cylinder during the backward movement of the device. When, however, the device is moved forward, said brush is again brought to the vertical position, (indicated in Fig. 2,) whereby said piston is brought back to its former position, in which the aircontrolling valves are caused again to register with each other, whereby said brush is again actuated. Thus it will be understood that with each rearward movement of the machine upon the carpet or other surface the brush is permitted to remain at rest, while with the forward movement it iscaused to reciprocate,

as stated, whereby the dust in the carpet or other surface is loosened imn'iediately in advance of the receiving-chambcr when by the action of the air it is drawn, as stated, into the dust-receptacles. It will of course be understood that the device thus shown and described is provided with a suitable operating-handle substantially like that of an ordinary carpet-sweeper, by which the operator is enabled to move it backward and forward over the surface to be cleaned. it will also be understood that, if desired, the reciprocating brush may be disengaged from the dustcollector and the same operated like the pneumatic dust-collectors of ordinary construct ion.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent is- In a carpet-renovater, the combination of a d ust-receiving chamber; a reciprocating brush adapted to loosen the dust in a carpet preparatory to entering said chamber; means for delivering the dust to said chamber; a pneumatic motor comprisinga cylinder; a piston; means for communicating motion from the piston in said cylinder to said reciprocating brush and means for conducting air under pressure from the source of supply to said motor, substantially as set forth.

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

' CARL GUNDICRHON. VVitn esses:

JAs. B. ERWIN, C. L. Ronson.

Images