US1106212A - Sewage-distributer. - Google Patents

Description

J. W. & C. J. HARTLEY.

SEWAGE DISTRIBUTER.

APPLICATION FILED 0OT.10, 1913 1,106,212, Patented Aug.4, 1914.

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THE NORRIS PETERS (1). PHO'IYLLI'THO WASHINGTON D F Witneoozo @NTTED STATES PATENT OFFICE.

JOHN WILLIAM HARTLEY AND CYRIL JOHN HARTLEY, 0F STONE, ENGLAND.

SEWAGE-DISTRIBUTER.

Specification of Letters Patent.

Patented Aug. 4, 19114.

Application filed October 10, 1913. Serial No. 794,473.

To all whom it may concern:

lie it known that we, JonN \VILLIAM Ilanrnny and CYRIL J OI-IN Hiurrnny, subjects of the King; of Great Britain, both residing at Stone, Staffordshire, England, have invented certain new and useful Improvements in Sewage- Distributors, of which the following is a specification.

This invention relates to sewage and like liquid distributors in which the liquid is intermittently fed under a falling head, for instance from a dosing chamber, to a number of nozzles fitted with deflectors or dash plates in order to disperse the liquid in the form of dome shaped jets, which due to the falling head gradually decrease in diameter.

The objects of the present invention are to produce dome shaped jets in the form of sheets or films without the formation of fine spray, in order to avoid aerial nuisance, to insure that the jets will maintain a substantially unbroken form during practically the whole feeding: period and during; which they are contracting, and to insure practically uniform distribution around each nozzle particularly as regards the area nearer the nozzle, which area in known distributers is usually ovcrdosed, or as in the case of siphon distributors is sometimes insufficiently dosed.

Figure 1 is a sectional elevation of the lower part of a dosing chamber, and Fig. 2 a. sectional view of the nozzle and pivotal support for the spreader plate.

In carrying the invention into effect according to the form shown, the dosing chamber a, which is a vertical chamber adapted to receive a definite quantity of sewage, is provided at its base with a contracted portion 30. The sewage is supplied through a supply pipe 0 controlled by a tubular valve y. From the contracted base of the dosing chamber a, a pipe (Z also leads to the nozzle 1 shown in Fig. 2. The valve y is balanced and of tubular form and guided in guides 9 which are supported on the inset piece 29 in the dosing chamber which effects the contract-ion of the dosing chamber on its base. The valve y is adapted to seat on a valve seat 4. A similar construction is provided for controlling the outlet of the sewage from the dosing chamber 66 through the outlet pipe (Z. The definite quantity of sewage under the falling head has to be evenly distributed in small quantities over a definite area.

It is sought by means of the present invention to distribute the sewage in a dome shaped fihn and not in the form of a spray, so as to avoid aerial nuisance and smell. For this purpose the upwardly turned nozzle f which of considerable cross-section has a spreader plate n of convex form supported in spaced relation directly opposite the nozzle and at a point where the stream has not started to break up, that is to say at a point where the stream under the action of the head has still an upward movement in rope form. The dash plate a is provided with sharp knife edges at its periphery as indicated at 11. so that the short inclined faces a slope away from the film of liquid, leaving the spreader plate a. In this way all capillary action is avoided at this point and the film leaves the spreader plate in an unbroken form and passes as a dome or ulnbrella shaped stream on to the distributing bed.

The plate a is supported from an arm 0' extending from the under convex surface and. pivoted. about the pivot t which is mounted on a log a on the side of the nozzle 7'. The arm 0 is provided with a stop '12 adapted to strike. against the wall w of the nozzle f. This stop locates the proper position of the spreader plate over the nozzle. By using a knife edged arm 0 which cuts the stream or sheet of liquid, while it is still in. contact with the spreader plate a and is therefore of considerable thickness, all liability to break the stream is avoided and this, together with the uniform distribution, is the main object of the present invention.

It is to he noted that in order to produce the desired effect of spreading the water in a domeshaped sheet without fine spray on its upper surface, in the most elficient manner, experiment has shown that the periphery of the spreader plate should have an acute knife edge such as forms part of the present invention. The pivotal arrangement of the spreader plate enables the same to be removed readily to one side to clean out the nozzles f,

1. In a sewage disposal apparatus, means for uniformly distributing sewage over a defipite area including an upwardly turned nozzle to which the liquid passes under pressure, a substantially convex spreader plate facing the opening of said nozzle and in spaced relation thereto, said spreader plate arm extending radially of the lower convex side of said spreader plate to intersect the 15 stream of liquid before it leaves the convex surface.

In testimony whereof We have signed our names to this specification in the presence of two subscribing witnesses.

JOHN WILLIAM HARTLEY. CYRIL JOHN HARTLEY.

lVitnesses PATTIE PLANT, JOHN H. COPESTATLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington,.D. '0,

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