US1316721A - hehry - Google Patents

Description

F. G. HENRY.

SPRAY MEASURING DEVICE. APPLICATION man ocT. 1|, 191s.' nenswED FEB. zo. 1919.

.1,31 6,721. Pmntedsept.23,1919.

Feminisme e. HENRY, or PHILADELPHIA,

CORPORATION, or BUFFALO, NEW Yo PENNSYLVANIA, ASSIGN'OR T0 BUJRKHAR'I RK, A CORPORATION 0F NEW YORK.

SPRAY MEASURING DEVICE.

Specication of Letters Patent.

Patented Sept. 23, 1919..

Application led October 11, 1915, Serial No. 55,279.y Renewed February 20, 1919. Serial No. 278,238.

To all whom z't may concern Be it known that I, FERDINAND G. HENRY, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Spray Measuring Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to spray measuring devices and has for an object to provide a device for measuring a predetermined quantity of a iuid to be applied by a spray, the spray being actuated from the same source of energy that the measuring and liftin of the fluid is accomplished.

A urther object of the invention is to provide a reservoir for holding a iuid, with an auxiliary reservoir communicating therewith with valves to close such communication, and a discharge conduit leading to the spraying device with means for applying power to simultaneously actuate the several parts to close the valve and open the spraying device.

A further object of the invention is to provide a valve for admitting energy to the spray controlling valve, with -means for holding such spray controlling valve open after the energy has ceased application.

With these and other objects in view the invention comprises certain novel constructions, combinations and arrangement of parts as will be hereinafter more fully described and claimed.

-In the drawings:

Figure 1 is a diagrammatic view of the several features entering into this invention and in addition a conventional means for actuating the parts.

Fig. 2 is a sectional view through the auxiliary chamber and its valve action.

Like characters of reference designate corresponding parts throughout the several views.

The improved spray controlling` device which forms the subject-matter of this application comprises a reservoir 1Q with an auxiliary reservoir 11 communlcatlng therewith by a passage 12 which embodies a valve seat 13.

Within the auxiliary chamber 11 a plunger valve 14 is mounted to reciprocate held normally open by the spring 15. The upper end of the plunger 14 is provided with a piston 16 operating in a cylinder 17 so that when air or other motive fluid is introduced through the pipe 18 it acts upon the top of the piston 17 to close the valve 14.'

A passage 19 is also provided located so that when the piston 16v is depressed to close the valve 14 the pipe 18 will be in communication therewith to admit the motive fluid upon the top of the liquid contained in the chamber or auxiliary reservoir 11. A pipe 20 communicates with the auxillary reservoir 11 near the bottom thereof in any approved manner as by the use of the nipple 21 so that when the air is admitted on the top of the liquid within the auxiliary reservoir 11 it serves to force such liquid out through the tube 20.

To apply the compressed air or other motive fluid to the top of the piston 16 and the liquid any approved form of pump is employed as shown at 22. The particular form of pump as disclosed forms no essential part of this invention, any means for supplying air under pressure serving the purpose also a conventional means for actuating the pump is shown as the lever 22, it being understood that such lever is only one of the many ways by' which the pump may be actuated, and as shown forms no part of the invention.

The pipe 20 leads to the spray nozzle 23 which depends from a housing 24 in the form a cylinder in which a piston valve 25 reciprocates held in position to normally close communication between the pipe 20 and the spray nozzle 23 by means of a spring 26. The piston valve 25 1s provided with an annular furrow 27 which when moved to proper position completes the communication between the pipe 20 and the spray nozzle 23. To move the valve a pipe 28 communicates with the cylinder 24 and. with the pump 22 through the branch 29. Interposed between the pipe 28 and the branch 29 is a valve houslng 30 with a valve 31 mounted to reciprocate therein and controlled by a lever 32 actuated from a cam 33. The cam 33 may be actuated by an)7 mechanism in timed relation with the other parts of the device. A means for such actuation is provided in the rack 33n pivoted to the lever 22", and intergeared with a pinion 33h carried by the cam 33.

The valve 31 is provided with an anuular furrow 34 which when properly moved forms communication between the pipe 28 and the branch 29. The valve 31 is also provided with a longitudinal groove 35 which is at all times in communication with the bleeder 36. The valve is held yieldingly by the spring 37 with communication between the pipe 28 and branch 29 closed. I

When a charge of liquid is to be delivered to the spray nozzle the pump 22 is actuated through the mechanical means employed :hereby closing the lvalve 14 and admitting air on the top of the liquid within the auxiliary reservoir 11. Simultaneousl the lever 32 is actuated in timed relation t rough the cam 33 and cam-actuating means to move the valve 31 so that the furrow 34 completes the communication between the pipes 28 and 29 therebyr admitting air to the piston valve 25 whereby to move the furrow 24 to open communication between the pipe 2() and the s ray nozzle 23. It is obvious, therefore, tiiat the liquid contained in the auxiliary reservoir 11 will be forced upwardly through the pipe 20 and discharged through the s ray nozzle 23 by the force of the air upon tiie liquid in such reservoir. While this spray is being discharged the valve 31 is again moved by the cam 33 and cam-actuating means so that the pipe 28 is closed, traping the air in the rear of the piston 25 and olding such valve open after the air has ceased acting upon the top of the liquid in the auxiliary reservoir 11 so that the column of liquid contained in the pipe 20 and the spray nozzle 23 will be drawn back into such auxiliary reservoir. This is permitted by reason of the fact that when the air is released from the valve 16 it is moved upwardly by the spring 15 and the passage 38 is then in communication with the auxiliary reservoir permitting the escape of air to compensate for the introduction of liquid contained in the ipe 20 and the spray nozzle 23. After su cient time has elapsed to permit the return of the entire column of liquid the valve 31 is again moved to normal position by the spring 37 whereby the air pressure at the rear of the valve 25 is released permitting such valve to close and cut ott further communication with the pipe 20.

I claim:

1. 'Ihe combination with a reservoir, of an auxiliary reservoir communicating therewith by a valved passage, a pump adapted to supply pressure to close the valve, a bypass opened by the movement of the valve, establishing communication from the pump to the auxiliary reservoir, a nozzle, a conduit communicating with the nozzle and with the auxiliary reservoir, a valve adapted to control the outlet from the nozzle, a second conduit between the auxiliary reservoir and the last named valve, and a mechanically actuated valve interposed in said second conduit adapted to control the passage of fluid through said conduit, said fluid governing the movement of the nozzle-controlling val ve.

2. The combination with a reservoir of an auxiliary reservoir communicating therewith; a piston valve adapted to close communication between the reservoirs; means to applyair pressure to the valve to close such communication and conduct air pressure to the auxiliary reservoir; a spray nozzle; a pipe communicating between the auxiliary reservoir and the spray nozzle; and a valve controlling the spray nozzle actuated by the Huid actuating the valve in the auxiliary reservoir.

3. The combination with a reservoir of an auxiliary reservoir communicating therewith; a piston valve controlling the cornmunication between the reservoirs; a conduit arranged to conduct air under pressure to the piston valve and to the auxiliary reservoir when the valve is closed; a spray nozzle; a pipe leading from the auxiliary reservoir to the spray nozzle; a piston valve located in the spray nozzle; a conduit forming communication between thel first mentioned conduit and the piston valve; and a third piston valve interposed in the run of conduit.

4. The combination with a spray nozzle, and a piston valve controlling the passage through said nozzle, of a valve controlled reservoir communicating with the spray nozzle; means to conduct pneumatic pressure to the valve and reservoir; a branch communieating with the pneumatic conveying means and the piston valve; a valve introduced into the branch and adapted to control communicatioii therethrough; and mechanical means to actuate the last mentioned valve.

5.y The combination with a reservoir, of a valve housing and spray nozzle forming a part thereof; a conduit leading from -the reservoir to the valve housing, a valve mounted to reciprocate within the housing and having means for establishing and closing communication between the conduit and the spray nozzle; means to conduct pneumatic pressure to the reservoir to force liquid through the conduit; a branch leading from the pneumatic conveying means to the valve housing; a valve mounted to reciprocate in the run of the branch, and embodying means to establish communication through the branch, to close communication through the branch and to establish communication of one section of the branch with the atmosphere; and mechanical means for actuating the last mentioned valve, said mechanical means being adapted to irst open communication through the branch, next to close communication through the branch, and next to open communication between a section of the branch and the atmosphere.

sure and trap it in the cylinder in the rear of the first mentioned valve, and to further move the second mentioned valve to estab- 1. lish communication 4between the cylinder and the atmosphere.

In testimony whereof I aiiix my signature in presence of two Witnesses.

FERDINAND G. HENRY.

Witnesses:

CHAs. F. BURKHART, MARY A. MCLAUGHLIN.

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