US1977183A - Brush - Google Patents

Description

Oct, 16, 1934. w. FRIEDMAN 1,9779183 BRUSH Filed NOV. l2. 1932 Patented Oct. 16, 1934 UNITED STATES PATENT orFlCE/ j BRUSH William Friedman', Chicago, Ill.

Application4 November 12, 1932, Serial No. 642,423

4 Claims.

The invention relates to brushes and its principal object comprises the provision of a brush equipped with a reservoir so that a fluid is continuously supplied to the bristles.

"5 It is a further object of the invention to providev l It is a further object of the invention to provide means for creating the pressure in the reservoir.

1t is also an object of the invention for reguy lating the amount of liquid supplied to the bristles l of the brush.

It is a still further object of the invention to provide certain details of construction and. arrangement tending to enhance the utility and y effectiveness of a device of the character specified. '20 With these and other equally important objects in view which will become apparent from a perusal of the invention, the latter comprises the means described in the following specieation, particularly pointed out in the claims forming a 25 part thereof, and illustrated in the accompanying drawing, in which Fig. 1 is a top plan view of a brush constructed in accordance with my invention, the top plan being removed to disclose interior construction.

30 Fig. 2 is a section on the line 2-2 of Fig. 1.

Fig. 3 is a section on the line 3-3 of Fig. 1.

Fig. 4 is a section on the line 4-4 of Fig. 1, and

Fig. 5 is a section on the line 5--5 of Fig. 3.

Referring to the several views in the drawing A5'the brush comprises a back or body portion 10 which is encompassed on all sides except the lower side by a covering 12 of metal or other impervious material forming a backing therefor.

The back is provided at the center with a Ollongitudinal slot 13 which extends almost the entire length of the brush back but stops short at the ends thereof for a purpose hereinafter explained.

At the center of the slot a nipple 14 is provided 45which has a length substantially equal to the thickness of the back 10 and is provided near the upper end with a circumferential liange 15 contacting with the lower side of the covering 12. The nipple 14 has inner threads at the lower 50T end to receive a threaded stud 16 upstanding from a longitudinal pipe 17 which is slightly shorter than the slot 13 and is lowered through the slot to assume a position along the lower side of the brush back 10 so as to be concealed within Y55- the bristles 11 as appears from Fig. 2.

The pipe 17 is' provided with a plurality of apertures 18 permitting the egress at distributedpoints, of a liquid for the saturation of thebristles, as will be hereafter further explained. The brush back 10', together with the covering 12, forms a bottom of a casing 19 and is secured thereto by a plurality of screws 20( as shown in Fig. 4. The casing 19 at the upper side is provided with an inner chamber 20 by a partition 21 which defines with a casing 19, a chamber 22 constituting a reservoir for the reception of a liquid 23. The partition 21 merges into a bottom 24 spaced from the covering 12, and at the center is provided with an apertured boss 25 for the passage of a screw valve 26 which enters a conical aperture 27 in the end wall 28 of the nipple 14. It is evident that by manipulation of the Valve 26 passage of the liquid 23 into the pipe 17 may be regulated or may be entirely stopped. The bottom 24 is also provided with .an apertured boss 29 in which is received a screw 30 which, upon removal, permits filling of the reservoir chamber 22. The chamber 20 is provided with a hand pump generally designated by 31 for a purpose presently to be described.

As shown in Fig. 3 the partition wall 21 is thickened at the left end as viewed in Fig. 3 and is provided with an aperture 32 to receive a nipple 33 to which is connected a hollow stem 34. A rubber tube 35 is placed on the stem 34 and its other end carries a union 36 on which is mounted, in threaded relation, a tubular casing 37, surrounding an inner tube 38 of similar diameter which at the left end is provided with a piston 39 in air tight engagement with the outer tube 37 by a packing 40. The right end of the inner tube 38 has secured thereto a knurled head 41 which, in the retracted position of the inner tube, bears against the outer tube 37. The outer tube is also provided with an opening 42 so that upon withdrawal of the inner tube from the outer tube, when the tubes are lifted up-l wardly by reason of the flexible hose 35, air enters into the inter-space between the inner and outer tube 38 and 37, respectively, in front of the piston 39 and upon forcing the piston into its left terminal position the air is forced past a check valve 42 into the chamber 22 whereby pressure is engendered in said chamber causing the liquid to be positively discharged past the needle valve 26 into the distributor pipe 17, and thence into the bristles.

The check valve is held against a seat 43 by a spring 44 whose other end contacts with the end of the sleeve 45 provided in the nipple 33.

los

In use the reservoir 22 is lled after removal of the screw whereupon the screw is put in place so that the chamber is sealed on all sides` The valve 26 is adjusted to permit a predetermined iiow of the liquid to the bristles, so that during the brushing operation liquid is simultaneously applied to the material to be cleaned.

As conditions necessitate, the hand pump 31 is actuated by lifting it out of the chamber 20 so as to raise the pressure in the chamber 22 for a positive discharge of the liquid.

The chamber 20 is closed by a cover plate 46' which, when applied, isl flush with the remainder communication between said reservoir and the bristles of said brush, and means for maintaining said reservoir contents under pressure, said means being housed within the back.

2. In combination with a brush, a reservoir on said brush having a false chamber and constituting the back of said brush, a spray pipe secured to the brush body, means controlled from said chamberfor establishing communication between said reservoir and said pipe, and means in said chamber for maintaining said reservoir contents under pressure.

' -`v3. In combination with a brush, a reservoir on said brush constituting the back of said brush, means for establishing communication between said reservoirand the bristles of said brush, and means movably connected to said reservoir for imparting pressure thereto, said means being `housed within the brush back.

4. In combination With a brush, a reservoir on said brush, a chambered cover closing said reservoir, means for establishing connection between said'reservoir and the bristles of said brush, and a pump in said cover chamber adapted to raise the pressure in said reservoir.

WILLIAM FRIEDMAN.

constituting the back, means for establishing

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