US1667964A - Sprinkler head - Google Patents

Description

May .1, 1928. 1,667,964

H. BEDDOES SPRINKLER HEAD Filed April 17, 1926 Patented May 1, 1928 4 STATES 1,667,964 PATENT OFFICE m! BIDDOBS, OI CHICAGO, ILLINOIS, ABSIGNOB TO PACIFIC FLUSH TANK COI- rm, CHICAGO, ILLINOIS,

A CORPORATION 01' ILLINOIS.

SPRINKLER HEAD.

Application filed April 17, 1926. flerlal No. 102,809.

My invention relates more articularly to sprinkler heads for filter be s such as are used in connection with sewage disposal systems. In such filter beds are commonly dis 6 posed at suitable intervals upwardly proecting sprinkler heads through which the iquid to be treated is forced and by which the liquid is distributed as uniformly as possible over the bed. The nozzles are spaced as uniformly as possible so that as much as possible of the superficial area of the bed may be sprinkled with the liquid and the nozzles have commonly been provided with circular outlets in which cones are arranged 1 to spread the liquid in all directions about the nozzle. By means of this construction and arrangement of nozzle it has been possible to falrl evenly spray or sprinkle the liquid over t e surface ofthe filter bed ex- 90 cept as to the areas' thereof adjacent the surrounding wall. If such nozzles are placed close to the wall manifestly a large proportion of the liquid is sprayed against the wall and runs down the latter without receiving the exposure to which the liquid distributed over the surface of the bed is subjected. On the other hand if there are no nozzles located close to the wall very considerable areas of the filter bed receive little or no liquid and therefore perform no useful purpose. It is the object of my invention to provide a nozzle which may be located close to the wall and so function as to distribute the liquid over substantially all of the filter bed within the same radius over which it would be distributed by the nozzles referred to above but which w1l1 prevent the distribution of liquid over the walls to any undesirable extent. My improved nozzle comprises a distributing cone which for half its circumference only distributes the liquid in the same manner as the circular nozzle and cone to which reference has been made. The cone is readily removable and replaceable and substantially prevents the distribution of liquid except through the desired semicircle.

In the drawings accompanying and forming a part of this specification, Fig. 1 shows a corner of a filter bed of the character to which my invention relates with the usual nozzle in place and with a suitable number of my improved nozzles located adjacent the walls thereof; Fig. 2 is a vertical diametric cross section through one of my improved nozzles, the cone distributor being shown in elevation; F g, 3 is a plan of the same, the

cone, however, being shown in section on teriorly threaded at 6 for screwing mto the vertical pipe through which the liquid is .supplied. The cap is formed with a circular outlet opening 7 and, beneath said opening, with a cross head 8 having a boss orenlargement 9 perforated to receive the stem of the cone. The under surface of the boss 9 is helical for a purpose'which will appear.

Referring to F1gs.- 2 and 3;the cone 10. is provided with a stem 11 which extends through the enlargement or boss 9. The cone 10 is also provided with a diametric fin 12 extending over the top or base thereof and down the conical wall to a half collar 13. Said half collar 13 is of two diameters, the lower half 13 being of a diameter to fit within the outlet opening 7 and the upper portion 13 of somewhat larger diameter to 'seat upon the top of the cap about said opening If desired, and preferably, the fin and half collar may be formed integral and soldered to the cone.

The stem 11 of the cone is provided with a latterly projecting pin 14 and the bore of the boss 9 with a channel or groove 15 so that said pin will travel through the channel in inserting the stem of the cone through the boss. As heretofore stated, the lower face of the boss is inclined or helical as at 16 and the pin is so located longitudinally of the cone stem that after the latter has been inserted in the boss 9 until the section 13 of the half collar rests upon the top of the nozzle, by turning the 'cone it may be locked in position by a bayonet joint action which draws the section 13" of the half collar down tightly upon the rim or edge of the outlet opening of the cap.

By the construction just described the cone is securely locked in position and at the same time, while the one half of the outlet opening, is left free (except for so much thereof as is occupied by half of the cone spindle) the other half of the opening is securely sealed by the flange or collar section 13". Thus when liquid is forced upwardly through the pipe to which the cap and cone has been attached. it flows or is proected only through the freely open half of t e outlet opening and is deflected by the corresponding portion of the surface of the cone and distributed in a half circle about the nozzle. the liquid being distributed beyond the diameter of the half circle. By suitably loeating and orienting nozzles of this character adjacent the walls of the filter bed as shown at a, b, 0. and d in Fig. 1 liquid is sprayed or sprinkled over the areas adjacent the wall not reached by the circular nozzles e, while at the same time the undesirable distribution of liquid over the walls of the bed previously mentioned is prevented.

I claim:

A sprinkler head of the class described The fin on the nozzle prevents comprising a nozzle having an outlet opening, a spreader cone having a stem extending through said opening in the nozzle a fin on the cone. a half collar on the fin an cone having an under shoulder adapted to fit upon the nozzle and close one side of the opening therein, a bridge within the nozzle having a perforation therein through which the stern of the cone extends, a cam surface on the under surface of the bridge, and a pin on the stem of the cone adapted to cooperate with the cam surface to draw the shoulder of the half collar firmly against the nozzle.

In testimony whereof, I have subscribed my name.

HUBERT BEDDOES.

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