US987545A - Street-flushing machine. - Google Patents

Description

J. I. BRORBY.

STREET FLUSHING MACHINE. APPLIOATION FILED AUG. 1o, 1910.

2 SHEETS-SHEET 1.

me/Mofa Patented Mar. 21, 1911.

J. I. BRORBY. STREET ELUSEING MACHINE.

APPLICATION FILED vAUG. 10, 1910.

987,545. Patented Mar.21,1911.

2 sHEETssHEET 2. Y

JACOB I. BRORBY, OF SHENANDOAH, IOWA.

STREET-FLUSHING MACHINE.

Specication of Letters Patent.

Patented Mar. 21, 19911.

Application filed August 10, 1910. Serial No. 576,453.

To all whom 'it 'may concern:

Be it known that I, JACOB T. BRORBY, a citizen of t-he United States, residing at Shenandoah, in the county of Page and State of Iowa, have invented new and useful Improvements in Street-Flushing Machines, of which the following is a specification.

This invention relates to street sprinklers and liushers and the object of the invention is to provide an efficient machine of this character employing a water and an air compartment and means to regulate the pressure of the water at the spraying nozzle irrespective of the variation in pressure in the air compartment.

Further objects of the invention will appear as the following specific description is read in connection with the accompanying drawings which form a part of this application, and in which:

Figure 1 is a side elevation. Fig. 2 is a bottom plan view partly in section. Fig. 3 is a vertical sectional view taken on the line 3 3 of F ig. 1.

Referring more particularly to the drawing 1 represents a wheel supported truck upon which a tank 2 is mounted. This tank is divided into separate compartments 3 and 4 by means of a partition 5 which completely separa-tes the separate compartments. The compartment 4 is somewhat larger than the compartment 3 and is adapted to contain water while the compartment 3 is adapted to contain air. A suitable manhole 6 is formed in the tank so as to communicate with the compartment 4 and a nipple 7 is threaded into the tank and provided with a check valve 8 and a threaded end 9 to receive a hose by which the compartment 4 may be iilled from the hydrant or other suitable source.

Extending from the compartment 4 is a nipple 10 which is similar to a nipple 11 eX- tending from the compartment 3. These nipples are connected by a pipe 12 in which a suitable valve 13 and a pressure gage 14 are mounted. At the free end of the pipe a valved extension 15 is secured. When the valve 13 is open the air in the compartment 3 is free to pass therefrom into the compartment 4 so as to force the water out of said compartment as will be hereinafter described. The nipple 10 extends some distance into the compartment 4 and has depending therefrom a valve cage 16 in which a ball valve 17 is mounted so that when the water in the compartment 4 rises Suthciently to iioat the valve 17, it will form a seal and prevent the water from entering the compartment 3. In filling the tank the valve 13 is left open so that the water as it rises in the tank compresses the air therein and forces it into the compartment 3 where it may be utilized to eject the water from the compartment 4. An outlet nipple 13 is connected to the tank for communication with the compartment 4 and has a foraminous valve cage 19 secured therein with a ball float valve 20 adapted to cut oif the passage through the nipple when the water is lowered to such an extent as to seat the valve, thus preventing the air from escaping. This nipple is connected on the outside of the tank with a discharge pipe 21 and also with a discharge pipe 22. The former pipe extends rearwardly alongside of the tank to a point adjacent the rear end thereof where it is provided with a valve 23 controlled through a link 24 operated from the drivers seat by a lever 23. The opposite side of the valve 23 leads through a pipe 24 to a spraying nozzle 25. The pipe 22 has upon its outer end a flushing nozzle 26 which is controlled by a valve 27 operated through the link 2S by a lever 29 at the drivers seat.

Suitably mounted upon the truck is a cylinder 30 having connection with the compartment 3 through a valved pipe 31. Mounted in the cylinder is a spring projected piston 32 whose piston rod 33 is connected to the valve arm 34 which operates the valve 27. This device automatically controls the pressure at the nozzle 26 as follows: TWhen there is a high pressure in the compartment 3 the spring pressed piston is moved outwardly against the tension of the spring and thus the valve 27 is operated and acts to reduce the iow of water through the pipe 22. As the pressure decreases in the compartment 3 the spring behind the piston will force the piston forward and thus open the valve 27 permitting more water to flow at a reduced pressure. The levers 29 and 23 may be held in any one of their respective positions by notched segments or the like.

The larrangement of Y the pipe 21 and spraying cap or nozzle 25 is duplicated upon the opposite side of the tank.

Having thus described the invention, what is claimed isl. A sprinkling device comprising a tank,

a partition dividing the tank into Water and air compartments, means connecting the Water and air compartments having a Valve therein to control the supply from one to the other, a val-'ved discharge pipe connected with the Water compartment, and means communicating With the air compartment and connected to the valve in the discharge pipe for controlling the flow through the discharge nozzle.

2. A device of the class described comprising a tank, a Ipartition separating said tank into air and water compartments, a discharge pipe connected to the Water compartment and having a nozzle thereon, a valve for controlling the discharge through said pipe, and means communicating With -the air compartment and connected to the Valve for automatically controlling the flow of water to said discharge pipe, together with hand operated means for controlling the Valve.

3. A device of the class described comprising a tank, a partition separating the same into air and Water compartments, a discharge pipe connected to the Water compartment, a valved pipe connected to the air con'ipartment, a cylinder communicating with said last-named pipe, a spring pressed piston mounted in said cylinder, ,a Valve controlling the flow .of Water through the discharge pipe, and means connecting the spring pressed piston and the Valve Where by the flow through `the nozzle of the discharge pipe is regulated independently of the pressure in the Water compartment.

In testimony whereof I a'iliX my signature in presence of two witnesses.

JACOB I. BRORBY. Vitnesses R. B. MURPHY, H. E. Boss.

.Copies .of this patent may be obtained for -ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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