US1725719A - Painting machine - Google Patents

Description

Aug. 20, 1929. J. o. OLSON 1,725,719

PAINTING MACHINE Filed Oct. 22, 1927 2 Sheets-Sheet -1 gwventoo Ja lson 2 Sheets-Sheet 2 Filed Oct. 22, 1 2';

gmwntoc Patented Aug. 20, 1929.

UNITED STATES JOHN OSCLAR OLSON, OF CLEARWATER, FLORIDA.

PAINTING MACHINE.

Application, filed October 22, 1927.

This invention relates to a painting machine and it is an object of the invention to provide a device of this kind operating to produce stripes on paven'ients or other surfaces and wherein is employed an endless member for applying paint.

It is also an object of the invention to provide a device of this kind wherein the member for applying the paint constitutes an endless member which, when the machine is in transit, travels through a reservoir.

An additional object of the invention is to provide a device of this kind wherein is employed an endless applicator together with a wringcr associated with the applicator for regulating or controlling paint applied during a working operation of the machine.

The invention consists in the details of construction and in. the combination and arrangement of the several parts of my improved painting machine whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will proceed to describe the same with reference to the accompanying drawings, wherein Figure l a view in top plan of a painting machine constructed in accordance with an embodiment of my invention;

Figure 2 is a vertical sectional view taken lengthwise through Figure 1 with parts in elevation;

Figure 8 is a detail sectional view taken substantially on the line 3--3 of Figure 2;

Figure 4 is a detail sectional view taken substantially on the line k'l of Figure 2;

Figure 5 is a view in plan of one of the members comprised in the wringer as herein employed Figure 6 is a View in plan of a second member comprised in the wringer;

Figure 7 is a view in elevation of the adjustment clamp coacting with the members of the wringer;

Figure 8 is a view partly in section and partly in elevation of the structure as shown in Figure 7 As disclosed in the accompanying draw- Serial No. 227,944.

ings, 1 denotes an axle of desired dimensions upon the extremities of which are mounted the supporting wheels 2. The axle 1 is freely disposed through the rear end portions of the pa allel arms 3 whereby said arms are capable of swinging movement in a vertical direction. The arms 3 rearwardly of the axle l are provided with the converging portions or extensions 4, the extremities of which being suitably secured to the lower end portion of an upwardly directed handle member 5, the upper end portion of which carrying a transversely disposed hand grasp or bar 6.

The forward end portions of the arms 3 have disposed therethrough the tubular members 7 and disposed through these members 7 and bridging the space therebetween is a shaft 8, the outer end portions of which having engaged therewith the cap members 9, thus effectively maintaining the shaft 8 in desired assembly.

Each of the members 7 is in alignment with another tubular member 10 immediately adjacent to the inner end of the member 7 and held thereto by a coupling sleeve 11. Each of these members 10 is disposed through a vertically directed side plate 12 of desired dimensions and held thereto by the clamping nuts 14 engaged with the member 10 and contacting with opposite faces of the plate 12.

The plates 12 are of a length to extend closely adjacent to the axle 1 to a point materially beyond the outer ends of the arms 3 and the lower portions of the plates 12 are inwardly disposed, as at 15, terminating in depending parallel portions 16. Interposed between the plates 12 is'a bottom plate 17 coacting with said side plates to provide a reservoir or tank to contain a supply of paint. This bottom plate 17 longitudinally is angularly dis osed.

Connecting t e upper portions of the plates 12 at the opposite ends thereof are the rods 18 and at a point substantially midway of the plates 12 the rods 18 have mounted thereon the rollers 19, said rollers being also positioned adjacent to the opposite end portions of the tank or reservoir. Passing over the rollers 18 is an endless applicator 20, the upper stretch of which travels through the reservoir while the lower stretch continues around the traction rollers 21 carried by the shafts 22, said shafts 22 being rothrough the vertically directed slots 25 in the lower portions 16 of the plates 12. The roller 23 is preferably of cast iron to assure the same having a material weight so that,

the working relation of the applicator 20 between the rollers 21 will readily flex to compensate for unevenness in the pavement or other surface with which the machine F may be employed.

It will be self-evident that the applicator 20 operates in the manner of an endless tread with the lower portion in contact with the surface upon which it is desired to produce a stripe and as the machine advances and during the travel of the machine the applicator will travel through the reservoir or tank, thus assuring said applicator having applied thereto the desired amount of paint. I

The rollers 21 are provided at their ends with circumferentially disposed flanges 26, said flanges beinglinwardly beveled and operating to compress inwardly the paint carried by the applicator 20, thus assuring clear cut edges to the stripe as applied to the pavement or other surface.

By pressing down upon the hand grasp or bar 6 the plates 12 and the parts carried thereby may be readily raised when desired and which is of advantage when it is desired to return the machine to a new starting point or to otherwise transport the same.

The endless applicator 20 also passes under a roller 27 freely mounted on the shaft 8 between the opposed inner ends of the sleeves or tubular members 10. By this means the upper stretch of the applicator 20 is caused to pass through the paint or the like within the reservoir or tank, thus assuring a maximum of efficiency of the machine. This roller 27 extends to a point closely adjacent to the lowermost point of the tank or reservoir.

Freely engaged with the inner portions of the sleeves ortubular members are the side arms 28 of a lower wringer section which is substantially in the form of an inverted U. The upper or intermediate portion 29 of this section underlies the endless applicator and the upper portions of the side arms 28 rotatably support a roller 30 for contact with the under surface of said applicator. At a predetermined point intermediate their ends the side arms 28 of the lower wringer section each has pivotally connected therewith, as at 31, a side member 32 of an upper wringer section also substantially in the form of an inverted U. The upper portions of the side arms 32 rotatably support a roller 33 for contact with the upper or outer surface of the applicator 1mmediately adjacent to the roller 30 herembefore referred to.

The intermediate member 29 of the lower wringer section has secured thereto an elongated member 3l-which extends a desired distance beyond the opposite sides thereof and said member 34 adjacent to the side members 28 are provided with openings 35 in'which are adapted to be engaged the hooked extremities 36 of a rigid bail or yoke member 37. This member 37 straddles the upper portion of the upper wringer section and threaded through the central portion of the member 37 is a shank 38 having contact with the outer intermediate portion 39 of the upper wringer section whereby an effective adjustment may be had of the rollers 30 and with respect to the endless applicator 20 passing therebetween. This relative adjustment regulates the amount of paint needed for different surfaces.

To each extremity of the member 34: is anchored an end portion of a retractile spring 40 the opposite end portion of which being anchored, as at 41, to the adjacent plate 12 at a point above and preferably inwardly of the roller 27 whereby the lower wringer section operates efliciently to take up any'slack which may occur in the applicator 20 and removing the paint from the roller side of the applicator.

The side plates 12 have extending outwardly therefrom at a predetermined point rearwardly of the shaft 8 the brackets 12 which coact with the arms 3 to hold the plates 12 and the assembly carried thereby from tipping.

I also find it of advantage to provide at the rear part of the portions 16 of the plates 12 the socket member 43 which adapted to hold a paint brush. The use of a brush is only necessary, however, in rare instances and only when the pavement or other surface is unusually rough. This socket member 13 holds the brush in alignment with the working portion or stretch of the applicater 20 and when desired can be used to spread the paint as transferred from the applicator to the pavement. One of the plates 12 adjacent to the low point of the bottom plate 17 is provided with a drain opening a l normally closed by a plug 45. This opening 44 after removal of the plug permits effective draining of the reservoir or tank upon proper tipping of the machine.

From the foregoing description it is thought to be obvious that a painting machine constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim 1. An apparatus of the character described, comprising, in combination, a wheeled structure including a reservoir, rollers carried by the lower portion of the structure, a roller supported by the structure and positioned within the lower portion of the reservoir, an endless applicator operatively engaged with said rollers, a portion of said applicator having contact with a surface over which the apparatus travels, a wringer mechanism coacting with the applicator as it leaves the reservoir, said wringer mechanism comprising a member pivotally supported by the roller in the reservoir and contacting with one side of the applicator, a second member pivotally connected with the first member and having contact with the opposite side of the applicator, and means for adjusting said members of the wringer one with respect to the other and with the applicator.

2. An apparatus of the character described comprising, in combination, a wheeled structure including a reservoir, rollers carried by the lower portion of the struc ture, a roller supported by the structure and positioned within the lower portion of the reservoir, an endless applicator operatively engaged with said rollers, a portion of said applicator having contact with a surface over which the apparatus travels, a wringer mechanism coacting with the applicator as it leaves the reservoir, said wringer mechanism comprising a member pivotally supported by the roller in the reservoir and in contact with one side of the applicator, a second member pivotally connected with the first member and having contact with the opposite side of the applicator, means for adjusting said members of the wringer one with respect to the other and with the applicator, and means coacting with one of the members of the wringer mechanism for constantly urging the wringer mechanism as a unit in a direction to maintain the applicator substantially free of slack.

3. An apparatus of the class described comprising a wheeled supported axle, forwardly directed arms carried by said axle and having vertical swinging movement, a handle mechanism operatively engaged with said arms and extending rearwardly from the axle, an open top paint tank supported by the arms in advance of the axle, an endless applicator extending within the tank through the open top and having a portion extending below the tank for contact with the surface over which the apparatus travels, means for maintaining said portion of the applicator in position for contact with said surface, and means for maintaining the second portion of the applicator within the tank.

4:. An apparatus of the class described comprising a wheeled supported axle, for wardly directed arms carried by said axle and having vertical swinging movement, a handle mechanism operatively engaged with said arms and extending rearwardly from the axle, an open top paint tank supported by the arms in advance of the axle, an endless applicator extending within the tank through the open top and having a portion extending below the tank for contact with the surface over which the apparatus travels, means for maintaining said portion of the applicator in position for contact with said surface, the tank comprising two side plates, a rod disposed through said plates adjacent to the bottom of the tank and bridging the space therebetween, means for connecting said rod with the plates, and a roller mounted on said rod within the tank and under which the endless applicator passes.

In testimony whereof I hereunto afiix my signature.

JOHN OSCAR OLSON.

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