US1572656A - Spraying device - Google Patents

Description

Feb. 9 1926.

v N. w. KREUDER SPRAYING DEVICE Filedl July 6 I 1925 &

Patented Feb. 9, 1925.

NORMAN W. KREUDER, OF CHICAGO, ILLINOIS.

SPRAYING DEVICE.

Application filed July 6, 1925. Serial No. 41,526.

To all 111710722, i2 may concern:

Be it known that I, Noun-m W. KnnUnnR,

' a citizen of the United States, residing at Chicago, in the county of Cook, State of lllinois 'liavi11g invented certain new and useful Improvements in Spraying Devices, do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to devices for spraying liquids, and is particularly useful for spraying such liquids as paints, lacquers, stains and varnishes. The invention consists in the nov l and useful organizations and constructions herein described and then pointed outin the appended claims.

In the accompanying drawings, which illustrate a practical embodiment of my present invention and in which the same reference numerals indicate similar parts in the different figures, Fig. 1 is a view in elevation at the discharge side of the device;

Fig. 2 is a vertical sectional view on the line 2 2 in Fig. 1 on full scale;

Fig. 3 is a top plan view, and

Fig. at is a detail sectional view on an enlarged scale.

In the form here shown the reference numeral 1 indicates a circular plate or base having a. suitable standard or handle 2 secured on its lower side and an annular peripheral vertical flange 3, which with the base 1 forms an open-top shallow cupsl aped receptacle; the annulus 3 is cut-away or reduced in height at one side by oppositol v inclined ways as shown for example in Fig. 1 to form a discharge mouth 4 as hereinafter described and preferably is inclined or beveled upwardly and outwardly throughout the balance of its extent as shown for example in Fig. 2. The handle or stand aid 2 is provided with a central bore in which a shaft 5 is revolubly mounted, and it has a roller-bearing 6 at its upper end on which the head 7 of the shaft is supported; the shaft has a suitable coupling 8 at its lower end by which it is detachably connect ed to a flexible drive shaft 9, which is driven from any suitable source of power. The head '7 of the shaft carries a central feed pipe or funnel 10 and a plurality of communicating radial tubes 11 which extend outwardly in the plane of the lowest portion of the mouth 4 of the annulus 3 to points adjacent the latter, and the outer open as at 13. The cups 112 are normally held in position to close the tubes by the annulus 3 which preferably is provided for this purpose with a track 14 on its inner face which extends from near one end of the mouth 4 to near the other end, so that as the tubes revolve their cups are held. up in position to close their ends while the latter are moving around on the inside of the annulus but open by centrifugal action to open the tubes when the latter are moving through the arc of the mouth. The material to be sprayed is fed to the central pipe 10 by a stationary supply-pipe 15 which extends radially from the pipe 10 to and around the annulus 3 by which it is carried, preferably at a point opposite the mouth 4; the pipe 15 leads into a feed channel 16 in the handle which communicates with a supply of paint under pressure. The supply line is provided with a control valve 17 having its stem 18 slidingly mounted in a cross-bore of the handle at one side of the shaft 5 and operated by a linger lever 19; in practice the valve 17 is spring-pressed to norn'ially close the supply line, as shown for example by the spring which expands between. thehandle 9. and

lever 19.

When the shaft 5 is rotated it causes the tubes 11 to revolve and the cups to move along the annulus, and when the valve 17 is opened the fluid flows under pressure into the tubes; while the cups 1?. travel on the main portion of the annulus they close the ends of the tubes but when they travel over the mouth portion 4 they drop away from the tubes to open the discharge ends thereof and the fluid is sprayed outof their ends as shown in Fig 2. The central portion of the mouth at is straight and so disposed that the cups while passing over it are practically in extension of the tubes to fully open them, and in practice this straight portion of the mouth is of sufficient length to enable the tubes to momentarily discharge a full head or volume of the liquid, and the end portions of the mouth are oppositely beveled or inclined so that the cups easily ride over them and gradually open and close. The mouth or outlet passage is preferably of sufficient extent in relation to the distance between the outer ends of the rotating tubes to enable one tube to register with the month before its predecessor is out of register therewith, so that when the tubes are rapidly revolved the fluid is distributed out of the mouth in a continuous stream or sheet. The cups and outer ends of the discharge tubes are so related that the former practically seal the latter when in their closed position, and the cups are so shaped that when traveling through the outlet area they spray or atomin the fluid which is discharged through the tubes with considerable centrifugal force. The amount of fluid discharged can be regulated by the control-valve, and the fineness or extent of its atomization by the speed of rotation of the discharge tubes. Various changes in form and dimensions of the parts may be made, and while the device is particularly adapted to spray liquids for painting or coating purposes it may be advantageously employed in various other relations, such for example as supplying oil and liquid fuel to burners.

I claim:

1. In. a device of the class described, a casing having a radial outlet, a fluid supplypipe, a rotatable shaft, a member on the shaft in the casing communicating with the supply pipe and having a plurality of discharge orifices in line with the out-let, and cups mounted on said member to ride on said casing to normally close said orifices and to periodically open the latter when the cups register with said radial outlet.

2. In a device of the class described, a cylindrical casinghaving a. radial out-let passage, a fluid supply-pipe, a rotatable shaft, a plurality of tubes on the shaft communicating with the supply-pipe and terminating at their outer ends in line with the outlet, and cups pivoted on the outer ends of the tubes in position to travel on the casing in closed position and to register with the outlet to open the tubes.

3. In a device of the class described, a casing having a radial outlet passage, a fluid-supply pipe, a fluid-control valve, a 1'0- tatable shaft, a plurality of tubes on the shaft in the casing communicating with the supply-pipe and terminating at their discharge ends in line with the outlet, and means to periodically open the tubes at the outlet.

4. In a device of the class described, a cylindrical casing having a radial outlet passage, a fluid-supply pipe, a fluid-control valve, a rotatable shaft, a plurality of tubes on theshaftcommunicating with the sup-- ply-pipe and terminating at their discharge ends in line with the outlet, and cups pivoted on the tubes in position to travel on the easing in position to close the tubes and to register with the outlet to open the tubes.

5. In a device of the class described, a casing having an annular wall provided with a depression forming a radial outlet passage, a fluid-supply pipe, a rotatable shaft, a plurality of tubes on the shaft in the casing communicating with the supply-pipe and terminating at their discharge ends in line with the outlet, and cups pivoted at the lower portions of the discharge ends of the tubes to ride on the wall when the shaft is rotated.

6. In a device of the class described, a casing having an annular'wall provided with an elongated depression forming a radial outlet passage, a fluid-supply pipe, a fluidcontrol valve, a rotatable shaft, aplurality of tubes on the shaft communicating with the supply-pipe and terminating at their discharge ends in line with the outlet, and cups pivoted on the discharge ends of the tubes in position to travel on the wall in position to close the tubes and to register with the depression toopen the tubes at the outlet.

7. In a deviceof the class'described, a base having a handle provided with a fluid-supply channel, a valve mounted on the handle to control said channel, a shaft rotatably mounted in the handle, an annular wall on the base having a depression forming a radial outlet, a plurality of tubes on the shaft communciating with said channel and terminating at their discharge ends in line with said outlet, and cups pivoted on the discharge euds of the tubes in position to ride on the wall. I

In testimony whereof I hereto aflix my signature."

NORMAN IV. KREUDER.

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