US950118A - Device for cleaning filters. - Google Patents

Description

L. V. HOOD.

DEVICE FOR CLEANING FILTERS.

APPLICATION FILED MAY 29, 1909.

Patented Feb.22, 1910.

NT FFI.

'LLOYD VINCENT ROOD, 0F MARIETTA, OHIO.

DEVICE FOR CLEANING FILTERS.

Patented Feb. 22, 1910.-

Serial No. 499,095.

To all whom it may concern:

Be it known that I, LLoYD VINCENT R001), a citizen of the United States, residing at Marietta, in the county of Vashington and State of Ohio, have invented a new and useful Device for Cleaning Filters, of which the following is a specification.

My invention relates to filters of that general class shown in United States Letters Patent, granted to me on the 25th day of December, 1906, under No. 839,514.

The object of the invention is to generally improve and simplify the construction of the filter cleaning device and render the same more efficient by the provision of pivotally connected arc bars to which the scrapers are attached, and which automatically operate to hold the scrapers in contact with the filtering element.

lVith these advantages and other objects in view, which will be shown in the following specification and set forth in the claims, my invention embraces the structure illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of the filter. Fig. 2 is a longitudinal sectional View of the same. Fig. 3 is a cross sectional view taken on the line AB of Fig. 2. Fig. 4 is a perspective view of the improved filter cleaning device.

Referring to the drawings, in which like characters of reference designate similar parts wherever they occur, the filter is shown having spaced heads 5 and 6, clamping rods 7, hollow flange 8, transparent casing 9, discharge faucets 10 and 11, stationary filtering element 12, and a rotating water wheel 13.

I lay no claim to the above construction as it is described and claimed in my former patent above referred to. My present invention resides instead, in the improved cleaning device to be assembled with a filter of this kind, and which will now be described.

Secured to the bottom of the water wheel 13 are downwardly extending lugs 14, provided with transversely disposed annular openings adapted to receive pivot pins 15 which project through the ends of the annular openings a sufficient distance to engage tubular bearings 16 and 17 disposed laterally on the V-shaped ends 18 of the links 19. These pivot pins are of a size to snugly fit said bearings and to permit a pivotal movement of the links. The opposite ends of the links 19 terminate in inverted V- shaped branches 20 and 21 having lateral tubular bearings 22 and 23 adapted to receive a pivot pin 24. Disposed on this pivot pin intermediate the inner faces of the inverted V- shaped branches 20 and 21 of the links 19 are sleeves 25, constituting bearings for the terminal up-standing lugs 26 formed on the upper surface of the arc bars 27. Each one of the up-standing lugs 26 is provided with a longitudinal opening adapted to receive and snugly fit a pin which terminates in a curved plate 28 constituting a weight. By this construction the links 19 and weights 28 are pivotally connected together. The opposed ends of the arc bars 27 are provided with apertured lugs 29 and 30 adapted to receive and slidingly fit a pivot pin, which connects the opposed ends of the arc bars in a hinge joint. Secured to one of the upstanding lugs forming the hinge oint, is the cleaning device, which consists of a bar or scraper 31 preferably of metal and equal in length to the length of the stationary filtering element 12, and adapted to be held in contact therewith.

Pivotally connected to the links 19 is another pair of arc bars 32 similar in construction to the above described are bars 27that is they are terminally provided with apertured lugs adapted to receive and snugly fit the pin which supports the weights 28, and have the apertured lugs 33 and 34 disposed on their opposite ends connected in a hinge joint positioned directly opposite the hinge joint of the arc bars 27. Secured to one of the lugs is a scraper 35 similar to the scraper 31 above described and adapted to be held in contact with the stationary filtering element diametrically opposite to the above described scraper. By having the scrapers secured to the hinged terminals of the arc bars 27 and 32 in the manner described, the scrapers will be adjusted laterally with respect to the filtering element as the two pair of hinged arc bars take up the successive changes in position from a circle to an approximate ellipse. The weight 28 when rotated through the medium of the water wheel 13 is thrown outward by centrifugal force and draws outward the ends of the arc bars secured thereto and causes the bars to take up the successive changes in position above described. Vhile the scrapers are preferably made in the form of metal bars, it is not intended to limit the construction to such as brushes of steel,-

intermediate hinge joints to be drawn in- Ward and the scrapers secured thereto held tightly in frictional contact with the filtering element.

From the foregoing description, taken in connection with the accompanying drawings, it is thought that the construction and operation of the invention will be easily understood without a more extended explanation, it being understood that various changes in the form, proportion and minor details of construction may be made without sacrificing any of the advantages or departing from the spirit of the invention.

Having thus described my invention, what I claim is 1. In a filter, a cleaning device having a rotating member, links depending from the rotating member and terminating in securing heads, yielding bars connecting all of said links together, and cleaning members V carried by said bars and adapted to engage the filtering element.

2. In a filter, a cleaning device having a rotating member, links pivotally secured to the rotating member, relatively movable bars connecting all of said links together, and cleaning members assembled with said bars and adapted to engage the filtering element.

8. In a filter, a cleaning device having a rotating member, lugs depending from the rotating member, links pivotally secured to said lugs and terminating in spaced ends adapted to pivotally secure a weight, bars connecting said links and adapted to embrace the filtering element, pivotal connections between the bars and the links, cleaning members connected to said bars, and means for holding the cleaning members in contact with the filtering element.

4. In a filter, a cleaning device having a rotating member, lugs carried by the rotating member, links pivotally secured at one end to said lugs, and having terminal means for pivotally securing a Weight, pivotally connected bars connecting said links and adjustable laterally to the Walls of the filtering element, cleaning members carried by said bars and adapted to impinge the walls of the filtering element, and weights assembled with said links and operating to hold said cleaning members in contact with the walls of the filtering element.

5. In a filter, a cleaning device having a rotating member, links pivotally connected to the rotating member, said links terminating in securing heads adapted to pivotally secure weights, relatively movable bars pivotally secured at one end to said links and connected together at the opposite ends with a hinge joint, scrapers carried by said bars and adapted to engage in the walls of the filtering element, and weights pivotally connected to said links and operating to hold said scrapers in contact with the walls of the filtering element.

6. In a filter, a cleaning device having a rotating member, apertured lugs depending from the rotating member, links terminating in spaced heads adapted at one end to pivotally receive said apertured lugs, and the other to pivotally secure a weight, yielding arc bars connecting said links, pivotal connections between said are bars and said links, scrapers secured to said are bars, and Weights pivotally connected at one end of the said links and operating to hold said scrapers in contact with the walls of the filtering element.

In testimony that I claim the foregoing as my own, I have hereto affixed my signa ture in the presence of two witnesses.

LLOYD VINCENT ROOD.

\Vitnesses GEORGE E. CALDWELL, ELVA MARTIN.

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