US900609A - Rotary sprinkler. - Google Patents

Description

I T. s. & J. E. STEWART.

ROTARY SPRINKLER. I APPLICATION FILED mm: 6,1907.

Patented 0015.6,1908.

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THE NORRIS PETFRS 50., WASHINGYON, D C.

23 i in eaaeo ITED A E onmol THOMAS SGOTT STEWART AND JAMES ELDER STEWART, OF SALTSBURG, PENNSYLVANIA.

ROTARY SPRINKLER.

Specification of Letters Patent. Application filed June 6, 1907. Serial No. 377,528.

Patented Oct. 6, 1908.

v1ce' articularly adapted for the sprinkling.

of 00 e in coke ovens, this particular invention being an improvement on the one for which patent was granted us Novemberl 5th, 1887, No. 373,417."

The object of the present invention is the provision of a rotary sprinkling head consisting of but few and simple parts, which will be automatic init's action and will distribute the water evenly to the points desired, and which will be practica and efficient in every particular.

Another object of our invention is the pro-' vision of a sprinkling device which may be made at a low cost, the parts of which are adjustable to take up for wear, and one which may be used equally as well for a great variety of purposes.

With the above and other objects in view, our invention consists of a supply pipe having outlet openings and provided with a depending conical stud or projection, a rotary sprinkling shell, and means for journaling the shell to the depending stud on the supply 1 e. P lhe invention further comprises a sprinkler embodying certain other novel features of construction, combination and arrangement of arts substantially as disclosed herein and as illustrated in the accompanying drawings, in which:

Figure 1, is a sectional view of a coke oven showing our improved sprinkler head mounted for operation therein. Fig. 2, is a longitudinal sectional view of the device. Fig. 3, is a cross sectional view of the s rinkler taken on line 33 of Fig. 2. Fig. 4,1s a broken detail view of the lower ortion of the supply 1pc showing the out et openings therein. Fig. 5, is a cross sectional view of the sprinkler head on line 55 of .Fig. 2, showing the tangential arrangement of the exit slots.

In the drawings: the numeral 1, designates the body portion of the device which is in the form of a sleeve or pipe, either interiorly or exteriorly threaded at its upper end as at 2,

for connection with the supply pipe 3. The body portion at some distance from its upper end is formed with the inwardly beveled overhanging shoulder 1, the tubular body portion being reduced in diameter from the shoulder downward. The body portion is further provided with the closed lower end 5, having the conical stud or projection 6, depending therefrom. As shown in the longitudinal sectional view, longitudinal exit slots 7 ,are formed in the walls at the lower end of the body portion, these slots being obliquely disposed or set at an angle with respect to the radii of the pipe. The material of the pipe in which the exit slots are formed is preferably depressed inwardly as shown in Fig. 2, to provide the proper thickness to allow the slots being placed at a sufiicie'nt incline, and the mouths of the slots are preferably recessed from the surface of the pipe to afford sufficient clearance for the water when issuing from the slots.

The sprinkler head itself consists of a hollow globular shell 10, which at its upper end is formed with a contracted boss or neck portion 11, to fit loosely over the contracted body portion of device, the neck having a beveled edge 12, to engage and interlock with thebeveled shoulder 4.. The sprinkling shell is provided at its lower end with an inwardly extending conical stud 13, adapted to abut against the depending stud on the end of the pipe portion. At the extreme lower end, the shell is formed with a concave seat or recess 14, and in its upper portion, the shell is formed with interior paddle blades or vanes 15, adapted to be contacted by the fluid issuing from the exit openings in the pipe. The shell is also formed with the perforations 16, therein the perforations being larger in the central portion of the shell and smaller at its lower end to insure an even distribution of the liquid.

Both the depending stud on the pipe and the internal stud on the shell are formed with freely rotate. The cone is adjustably held in place by means of the nut 20 on the end of the bolt and a lock nut 21, may be employed to secure the nut in adjusted position. A cross pin or key 22, may be passed through the extended end of the supporting bolt as an additional safeguard for holding the parts in adjusted position.

The operation of the device is as follows: The water issues through the slots in the pipe extension in tangential jets which by their impact against the interior vanes in the shell, cause the shell to rotate at a speed in accordance with the pressure of the water. The water leaves the shell through the perforations therein and as the openings are graduated in size from the center downward, it is evenly spread over the surface to be sprinkled. Should the parts become loose by reason of wear, the nuts on the end of the supporting bolt may be tightened to take up any lost motion. The sprinkler is extremely simple as it consists of but two main parts, the pipe extension and shell, so that it is very strong and durable and may be manufactured at a low cost.

From the foregoing description taken in connection with the drawings the many ad vantages and usefulness of our improved sprinkler will be readily appreciated and it will be evident that we have produced a device which fully accomplishes all the results herein set forth as the objects of our invention.

WVe claim:

A sprinkler comprising a pipe having a closed lower end and a frusto conical stud depending therefrom, the pipe having a beveled undercut shoulder near its end and being of reduced diameter from the undercut shoulder to the end, there being tangentially arranged slots in the walls of the pipe extending from the closed end upward, the material in which the slots are formed. being thickened and depressed inwardly and the mouth of each slot being below the surface of the pipe shell having an internal upwardly projecting frusto conical stud in its lower portion opposite the depending stud on the pipe, an external boss at the lower end of said shell provided with a concave seat, a supporting bolt passed downward through a bore formed in the conical studs and having its head resting on the closed end of the pipe, said head being rounded to direct the flow into the slots, a cone on the lower end of the bolt engaging the conical seat in the boss of the shell, lock nuts for holding the cone in place, and a cross key passed through the bolt to secure the lock nuts.

In testimony whereof we ailix our signatures in presence of two witnesses.

THOMAS SCOTT CTE\VAR'1.. JAMES ELDER S'.l.E\VAltl.

\Vitncsses J. C. Moons, OLIVE EWING.

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