US1537566A - High-pressure painting device - Google Patents

Description

May 12, 1925. 1,537,566

J. C. TEMPLE HIGH PRESSURE PAINTING DEVICE Filed Deo. 28. 1923 2 Sheets-Sheet 1 May 12, 1925. 1,537,566

jJ. c. TEMPLE HIGH PRESSURE PAINTING DEVICE Filed Dec. 28. 1923 2 Sheets-Sided'.` 2

gvvven 1% oz Patented May 12,4 1925. l Y

1 UNITED (STATES JESSE C; CHEHVI'PIJE, OF `:HAT'.IPJIESBURGr, MISSISSIPPI.

HIGH-PRESSURE PAINTING DEVICE.

Application led December 28, 1923. Serial No. 683,238.

To all whom it may concern.' i

Beit known that I, Jnssn C. TMPLE, a citizen of the United States, residing at Hattiesburg, in the county of Forrest, State of Mississippi, have invented certain new` and useful Improvements in High-Pressure Painting Devices; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others vskilled in theart to which it appertains to make and use the same.

This invention relates to new and useful improvements in coating devices, and particularly to devices for coating surfaces with paint, or like fluid materials. ,n

One object of the invention is to provide a device of this character wherein the disc-harging nozzle is capable of easy and quick angular movement, so that the material may be directed against either horizontal or vertical surfaces; A A

Another object is to provide such a nozzle yas will remain in adjusted position until a change is desired, thus rendering the coating of the surface simple and efective. f

Another object is to provide a. paint spraying device wherein the paint and air conduits are disposed in concentric relation throughout the greater portion of their length, thereby rendering the grasping' and holding of the device more easy and comfortable to the workman.

. A further object is to provide a nozzle for a device of this character wherein the stream of compressed air isl directed against the head of the column ofpaint, with the result that the paint is completely brokenup and discharged through the orifice of the nozzle in a fine s ray.

Other o jects and advantages will be apparent from the follow'ing description when taken in connectionV with the accompanying drawing.

In the drawing: Figurevl 1s an elevation o f a paint spraying device made 1n accordance with the 1nvention, only Va portion of the tank being shown.

Figure 2 is an enlarged longitudinallsectional'view through the paint and air conduits, and the nozzle and conduit sections, said conduits being broken.

Figure 3 is a inodiication ofthe device.

Referring particularly to the accompanying drawing, 10 represents a tank which is 'adapted to contain the paint, and into which leads a pipe 11, for conducting compressed air from a. suitablecompressor (not shown) into thetank, to urge the paint from the tank.

A pipe 12, .is connected with the tank, by means of a flexible hose 13, and between the pipe 12 and the hose 13 is arranged a cut off valve 14. A three way coupling 15 is also disposed inthe pipe beyond the valve,

one branch 16 of which is connected with a valve 17, `and said valve is connected with the tank by Vmeans of a hose 18, this latter connection with the tank being for the purpose of conducting compressed air from said tank. Extending longitudinally and cen-` trally within the pipe 12 is a small pipe 19,'. one end extending into and being tightly-l litted within the branch 16. On the other end of the pipe 12 there is a three way coupling 20, and into the branch 21 thereof istightly ittedthe other end of the small pipe 19. To the other end of the coupling 2O is connected an L-shaped pipe 22, and in the end of the outer leg of this pipe is fitted a threaded nipple 23, said nipple having a .head 24 on its other end. Slidably and rotatably disposed on the nipple, beneath the ,head 24, is an externally threaded colla-r 25 which is screwed into the outer end of the vertical leg 26 of the T-coupling 27.V In one side of the branches of the coupling 27 is screwed a nipple 28, while a nipple 29 is screwed into the other branch, this nipple being the discharge nozzle of the device, and from .which the paint is directed onto the surface to be painted. Engaged on the nip-- ple 23, adjacent'the leg of the pipe 22, is a which' is arranged to be tensioned by the'y nut 30, whereby' to press the collar firmly against the shoulder of the head2/1, and produce a tight joint for preventing the escape of air or paint. Connecting the nipple 28 and the branch 2l is a flexible pipe or hose- 32, by means of which the compressed air may flow from the pipe 19 through the T- coupling 27 and the nozzle 29, across the upper end of the' column' of paint which issues `from the orifice of the head 24, into the coupling, by way of the pipes 12 and 22. W'hen properly screwed onto the collar 25, the coupling 27 will easily rotate with said collar, about thestem or nipple 23. 'The tension of the spring 31, which is regulated by the movement of the nut 30 on the stenm or nipple 23, holds the collar 25 in firm fric-` tional engagement with the shoulder of the head 24, thus permitting' the coupling 27 to remain in any of its rotatably adjusted positions. The adjustment'of the coupling is accomplished by pressing the nozzle 29 against the surface to be painted, so as to cause the nozzle to swingA to the desired angle. Thus, the operator, when standing in one position, may apply paint to a vertical surface, or to an upper or lower horizontal surface. The paint is forced from the tank by the pressure of the compressed air, and issues from the central orifice of the head 24, into the T-coupling, where the head of the column of paint is struck by the air issuing from the adjacent end of the pipe 19, and broken into a. fine spray which escapes from the orifice of the nozzle 29 onto the surface to be painted.

Should the surface to be painted be dirty, or covered with cobwebs, or the like, the valve 14, is closed while the -valve 17 remains open,.the operatorthen moving the nozzle 29 over the surface so as. to `blowthe foreign matter from ,the surface. Upon opening the valve 14, the paint will be forced through the pipe 12, andfout of the nozzle 29.

The concentric'arrangementl of the air and paint conduits provides for a simple and convenient handle for the operator to grasp whiledirecting the nozzle over the surface to be painted.

In Figure 3 there'is shown a modification of ,the invention, which` has been designed particularly for painting the opposite sides of railway rails and for use in destroying grass and weeds along the railway, byspraying this vegetation with a liquid prepared for the purpose. In this embodiment of my invention I employ two or more nozzles which are so mounted as to permit their outlets to be directed towards each other, so as to operate on the opposite sides of a rail, or away from each other so as to spray the vegetation-and the railway ties. In the `nfiodification illustrated in Figure 3, the outer end of the pipe 12' is provided with suitable coupling 33, which receives the ends of the branch 4pipes 34. Upon the outer end of each of these branch pipes is al1-elbow 35, to each of which is connected a spray nozzle including the elements 23', 30', 31', 32', etc., similar to the parts described in connection with the form illustrated in Figures 1 and 2.

When using my invention in connection with railways a device such as illustrated in Figure 3 is mounted at each'side of a car carrying a tank to receive the liquid and air,

each group of nozzles being .connected withthis tank, as herein described and arranged,

with their outlets at opposite-sides of rail. When paint is being applied, the outlets are directed towards each other to operate on "opposite sides of the rail. When used for the destruction of vegetation, the nozzles of each group are directed away from each other so as to distribute creosote, or another suitable preparation, upon the vegetation and the-ties. In this way the vegetation is destroyed and the ties are preserved.

' What is claimed is:

l. A painting device including a paintconduit, couplings at opposite ends of the conduit provided with branches, an air conduit disposed centrally within the paint conduit and having its ends fitted in the said branches, a discharge nozzle mounted on one end of the p aintconduit, and a flexible conduit between the nozzle and the adjacent end of the air conduit.

2. In a painting device, a paint and air conduit, a threadednipple on one end of the aint conduit, said nipple having a head, a

yiiozzle including a mixing chamber receiving -said head, connection between the air conduit and themixing chamber, a threaded collar on the nipple bearing against the head, a spring on the nipple bearing against the collar, and means on the nipple for varying the tension of the spring.

3. Ina device'of the class described, liquid and air conduits, a T-coupling mounted on the liquid conduit, and nozzles carried by the coupling and arranged to be directed toward each other and away from each other.

4. `A painting device, includingfa source of supply, a conduit leading from said source, spraying nozzles connected with the conduit and means whereby the nozzles may be adjusted to operate selectively in converging o'r diverging directions.

5. A. painting device, including a sourcel of supply, a conduit leading from said source, a plurality of spraying nozzles vand means connecting the nozzles with the con'- duit whereby said nozzles may -be selectively adjusted to operate in different directions.

6. A painting device including paint'and airconduits, a Tcoupling,a discharge nozzle in one branch of the coupling, an air in jector nozzle in the other branch of the coupling, a ring securedwithin the leg of thtl coupling, a paint nozzle rotatable within'thc ring and having a shoulder seated kon the ring ywithin'theleg, the other end of the paint nozzle being secured within the paint conduit, a nut on the paint nozzle, and a spring on the paint nozzle between the ring and thenut. V

In testimony whereof, I affix my signature.

JEssE tij-TEMPLE.

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