US1426217A

US1426217A - roddy

Info

Publication number: US1426217A
Authority: US
Publication date: 1922-08-15
Anticipated expiration: 1939-08-15

Description

G. R. BODDY. TRAVELING WATER SCREEN. I APPLICATION m5 FEB. 26, 1921. 1,426,217. Patented Aug. 15, 1922.

2 SHEETS-SHEET I.

51 vwehto'a Witness G. R. RODDY.

TRAVELING WATER SCREEN.- APPLICATION FlfiD FEB. 26, 1921 Patented Aug. 15, 1922.

2 SHEETS-SHEET 2.

3 wueutoa its res GUSTAV R. BUDDY, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO CHAIN BELT COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.

TRAVELING WATER SCREEN.

Specification of Letters Patent. Patentgd A g. 15; 1922 Application filed February 26, 1921. Serial No, 448,133.

T 0 all whom it may concern:

Be it known that I, GUsrAv R. Ronny, a'

citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and usefullmprovements in Traveling screens, the chains engaging with head and foot wheels by which they are kept under proper tension and driven. One or more screens of this character are inserted into the intake chamber of a waterway, and are so disposed that'the water passes transversely through the screening surfaces, the solid material being deposited upon the surfaces of the up-moving screens and by them lifted from the liquid, from which it is finally removed and carried away. vSuch apparatus is usually arranged either vertically or upwardly inclined and 'so that the upper or head wheel portion of the screen is above the surface of the stream of liquid being treated. After a screening unit such as described has been installed it is a matter of trouble, delay and expense to remove it for any purpose whatever, as for instance, to make such repairs to the mechanism as from time to time become necessary. The repairs most frequently required are the removal and replacement of parts of the chain that carry the screening elements. These parts become worn and have to be replaced; and my invention has for its object to so construct the supporting framework for a traveling water screen that while it gives the necssary support to the several parts of the apparatus it nevertheless permits suflicient access to the chains and screens to enable the necessary minor repairs to be made without requiring the removal of the screening unit from its place of installation.

In the accompanying drawings- Figure 1 is a side elevation of the upper portion of an endless traveling water screen embodying my improvements.

Fig. 2 is a transverse sectional View showing the manner of installing the screen in a water way, drawn on'a smaller scale than Fig. 1, and without the showing of details. Fig. 3 is a front elevation of part of the upper portion of the apparatus.

In the drawings A designates a chamber .in which is located an endless traveling water screen, designated as a whole by E. The water to be screened is taken, through an opening B, from a river or other source of supply and, after being cleansed, passes into the intake C leading to'the plant or wherever the screenedv water is to be used.

sonry or reinforced concrete D. I A screening unit comprises a pair of parallel

endless chains

2, 2, supported upon'the head wheels 3 and foot wheels 4, mounted in suitable framework that is set into the cham- The chamber A is usually. formed of maj her A. The footwheel is set in a boot 5 con structedto prevent the passage of undesirable ob ects" aroundthe lower 'end .of the screen. The individual screens are designated 6 and may be of woven wire,'perforated metal, or of other usual orapproved construction. The parts thus far referred to are common in this art, andlreferenceis made toU. S. Patent #1,208,655 of December 12, 1916,-to B. S." Reynolds,assignor to Chain Belt Company, for details of construction and arrangement not necessary to be herein pointed out. The supporting frame for the screen carries a pair of

upright channels

7, 7, for each of the chains 2, which channels guide the chains, and also serve to prevent the passage of particles of solid material, larger than would be collected by the screens 6, around the ends of the screens where they are supported by chains. The channels are carried by upright frame pieces 17, suitably supported in the screen chamber. The framework extends above the water level so that the head wheel and upper portions of the screen are out of the liquid, and these parts of the apparatus are supported in a headframe, designated as a wholeby 8. The upper, ends of the main supported uprights 17 are connected by cross plates or tie pieces 16. From these extend upwardly the guide pieces 9, 9, in which are supported the adjustable bearings 10 for the shaft of the head wheels 3. The adjusting means for these bearings are designated 11 and are supported in the top plates 20, uniting the" up the head wheel are uprights 14- which extend above the cross connecting plates 16, and are preferably in line with one set of the chain guides 7. These uprights are connected with the guide pieces 9 by intermediate cross braces 15 to give rigidity to the frame. From the uprights 14: extends a bracket 12 for carrying the motor 13 employed to operate this screen.

Instead of duplicating parts 14c and 15 upon the opposite side of the head wheel to give therequired strength to the headframe and support for the bearings of the head wheel, I arrange uprights 18, extending from the cross plate 16 to the top plate 20, parallel with and close to the guide pieces 9, and lying between the vertical planes, including on the one hand the axis of the head wheel, and on the other the rim or toothed portion of such wheel. This arrangement leaves the line of each chain between the end of the guide .7 and its engagement with the Wheel 3 exposed at one side at least of such wheel. The proportions of the frame parts which have been described is pref erably such that at least three links of each chain lie outside of the head framework, and

this is sufficient to permit making repairs to the chain and screen elements. A cover 19 hingedto theframework 8 may be employed to protect the portion of the machinery not surrounded by such framework. I

This cover is used also for the purpose of directing the Water spray employed to clean the screens from collected material, along with the material so removed into the discharge trough F. i

-What I claim is:

.1. In an endless traveling water screen comprising separate screening elements, parallel chains to which these are connected and head wheels with which the chains engage, a framework for supporting the head wheels and their shaft bearings, constructed to expose the peripheries of the head wheels and portions of the chains immediately adjacent thereto, on one side of the screen.

2. In an endless water screen comprising separate screening elements, chains supporting and carrying these, head and foot wheels with which the chains engage, and guiding and supporting frame pieces for the chains arranged between the head and foot wheels, a head frame for supporting the head wheels and their shaft bearings extending upwardly beyond the said guiding frame pieces, and constructed to expose the peripheral portions of the head wheels on one side and portions of thechains immediately adjacent to such exposed portions of the wheels whereby the chains are accessible for repairs and replacement.

3. A water screening apparatus such as described in claim 2 in which the head frame, on the side opposite that constructed to expose the head wheels, is constructed to close in the head wheel and the chains engaging therewith.

4. A screening apparatus such as in claim 3 having a bracket for almotor sup ported by that portion of the head frame that closes in one side of the head wheels.

5. A screening apparatus such as described in claim 2 provided with aremovable cover for the exposed part of the head wheel and chains.

GUSTAV R. RODDY.

described.