US2239183A - Wall and ceiling washing machine - Google Patents

Description

2 Sheets-Sheet 1 April 22, 1941. H. D. wlLLARD wALL AND CEILING wAsHING MACHINE Filed Apil 1, 1958 April 22, 1941. y H. D. WILLARD WALL AND CEILING WASHING MACHINE i Filed April 1, 193s 2 sheets-sheet 2 Fvg-8. 17

Patented Apr. 22, 1941 WALL AND CEILING WASHING MACHINE Harvey David Willard, Chicago, Ill., 'assignor of one-half to Harry Jacyn, Ghicago, Ill.

Application April 1, A1938, Serial No. 199.375

1 Claim.

This invention relates to improvements in wall' and ceiling washing machines that may be used for Washing floors and like surfaces as well. One object is to provide novel meansv for washing such surfaces with great speed, ease and 'emciency' thus very materially reducing the cost of labor and eliminating the objectionable features ordinarily present in such operations.

A further object is to provide a power operated y machine for this class of work that is readily movable about a room, easily operated by one man, compact in assembly, durable in use and not likely to get out of order. A further object is to provide a machine that, in use, requires very little effort on the part of the operator and that due to the speedat which it maybe operrated is adapted to perform many times the Fig. 3 is a view of the machine, reduced, in side elevation.

Fig. 4 is a plan view of Fig. 3 with the flexible shaft andhose connections omitted.

Fig. 5 is a view in elevation of a free hand grip employed.

Fig. 6 is a. top plan view on the line 6 5 o1 Fig. 2.

Fig. 7 is a bottom orl inverted plan view of' Fig. 6.

Fig. 8 is an enlarged sectional view through Fig. 3.

Like reference characters denote corresponding parts throughout the several views.

Ihe invention provides a` rotary brush arranged in a housing open at one end, the housing having .water intake and exhaust means, the water being supplied to the brush by a pump which draws it into and through the housing and out again, the housing having handles by means of which it may be applied to the surface to be washed in such manner that the rotary brush will travel thereover.

The pump exhaipsts air from the brush housing and draws or sucks water therefrom after the same has been supplied to the-brush so that the water will not escape from the open end of the housing to'flood the' work surface. 'I'he open end of the brush enclosure closely engaging the surface being washed will cooperate with this pump suction to prevent water leakage.

In the event that the brush housing is acci- V- dentally, or otherwise, disengaged from the surface being cleaned, air will be admitted freely and the pump will operate to draw in the same instead of drawing the water, thus avoiding any material water escape through the open end of the housing over the surface being cleaned. The reference numeral I denotes the brush housing which is substantially circular in cross section, open at one end, the opposite en d 2 being closed and `of fiat external appearance. Secured to the housing I is a handle 3 by means of which the operator grasps the Washer.

Arranged in spaced relation to the closed end of the housing is lthe inner partition B so 'that a water chamber or reservoir is formed which is provided with the intake orifice 9 for connection with the water hose II that extends through the flexible conduit 6 to the watertank I2 to withdraw water therefrom, said tank being arranged upon the dolly I3. Secured in the closed end 2 of the housing is the flared collar I l that serves as a support for the gland nut I la. A tubular stem I5 having grease gland I' to vprovide lubrication receives the flexible shaft I'I that extends through the conduit 6 to the motor I8 connected by belt i9 to the pump 20, said motor and pump I disposed upon the opposite side of partition 8` being arranged upon the water tank I2. The flexible shaft I1 is' connected, by means of a tubular nut Mb, to one end of the brush shaft 22 y that extends from the crown of the upper gland nut downwardly, through the water reservoir formed by the housing end 2 and partition 8 and through the bearing 23 at the pit of said reservoir and is threaded into engagement with the disc 24 adjustably connected by screws 25 to the brush 26 provided with bristles 21a, said brush shaft extendmg through said disc and brush and into the bristle area and terminating at 28, as clearly shown in Fig. 2.

The diameter of the brush is less than that of the housing so that a space is formed 4within the latter all about the brush. Thebrush housing isl provided with an outlet orifice 21 of materially larger diameter than the intake orifice to which the drain water hose 29 is secured that extends through the conduit 6 to the pump 20 and therefrom into the tank I2. The outlet Orifice 21 ls with respect to the intake orifice to provide a drain.' The brush shaft zz is formed within the reservoir compartment with perforations 30 so that water may pass from said reservoir through the tubular brush shaft and. out the lower end of the same upon the brush bristles and then out through the drain orince. A clamping band '34 `of resilient material extends about the lower end of the housing l and is formed with the ears 3l engaged by a screw 33 whereby the band is held in position. Interposed between said band and the lower end of the housingV is a rubber collar or squeegee 33 that projects beyond the outer or lower edge of said band, which edge 32 terminates slightly beyond the adjacent edge of the housing. Pressure upon the free edge of the collar 33 in engagement with the work may bend CTI this edge slightly or flatten it so that the bristles y expansion coil spring 3l that yieldingly thrusts.

the brush outwardly so that it is spaced from said disc as shown in full lines in Fig. 2. This spring 3| is seated in a recess in the brush head and encircles the shaft 22 andy abuts a tubular extension 24a of the disc 24. Pressure of the work upon the free ends of the bristles may cause the brush head to move into the dotted line position, Fig. 2, abutting the disc 24, said brush head being slidably supported upon the screws 25 to permit this movement. A tubular hand grip 31 ts freely and movable longitudinally over the member I'5 to facilitate handling and use of the machine, saidl hand grip being readily movable longitudinally of the member I5 while the handle 3 is grasped, said handle serving -to oscillate the housing, when desired, to assist further in cleaning a particular spot. The ared lower end of the hand grip is formed to snugly receive a gland nut I 4a to tighten or .loosen the same, as desired.

In use, to wash a surface with the machine the operator 1, applies the machine to the surface 50, the handle 3 and hand grip 31 being grasped as shown in Fig. 1 so that the drain orifice is disposed below the intake orice. The outer edge of the rubber collar or squeegee and the brush bristles are in engagement with the surface Ill and move over the same. The motor and pump are started, the motor rotating the brush by means of the flexible shaft connected thereto and the pump causing a suction through the outlet hose 29 which first exhausts air from the brush housing to create a partial vacuum which draws up water from the tank I2 through the intake hose Il which passes into the water reservoir and through the brush shaft perforations into the brush shaft and out through the lower end of said shaft about the brush bristles and out through the exhaust hose to the tank again. When the bristles become worn through use and are thereby shortened the squeegee may be adjusted to compensate for the brush wear and make it again effective. By holding the hand grip 31 somewhat loosely with one hand the brush may be retained in positive engagement with a vertical surface and at the same time the handle 3 may be used with the other hand to oscillate the brush to thoroughly cleanse a spot requiring-positive brush application.

What is claimed is:

In a manually portable surface washing machine, a housing having a reservoir compartment and a brush compartment, a brush in said brush compartment having a shaft extending through said reservoir compartment and formed with perforations located in said reservoir compartment, a flared collar secured to one wall of said reservoirpcompartment, gland nuts secured together about said shaft and connecting said flared collar to said reservoir compartment wall and forming a grease gland about said shaft, a flexible drive shaft for said brush shaft, an intake orifice for said reservoir compartment arranged in said wall, an exhaust orice for said brush compartment disposed in line With said intake orifice in the housing side wall and adapted to be connected to a suction sourcea handle for said housing, and a hand grip having a rotatable connection with said flared collar, said exhaust orifice being materially larger than said intake orifice.

HARVEY DAVID WILLARD.

Images