US2646888A

US2646888A - Liquid cleaning device

Info

Publication number: US2646888A
Application number: US126602A
Authority: US
Inventors: Clarence J Schichtl
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-11-10
Filing date: 1949-11-10
Publication date: 1953-07-28
Anticipated expiration: 1970-07-28

Description

July 28, 1953 c. J. SCHICHTL 2,646,888

LIQUID CLEANING DEVICE Filed NOV. 10, 1949 KShBGtS-Shfit 1 38 J 7 I I l 5k INVENTOR BY W.

ATTORNEYS.

July 28, 1953 c. J. SCHICHTL LIQUID CLEANING DEVICE 3 Sheets-Sheet 2 Filed Nov. 10. 194

ATTORNEYS July 28, 1953 c. J. SCHICHTL LIQUID CI.EANING DEVICE 3 Sheets-Sheet 3 Filed Nqv. 10, 1949 INVENTOR A'I'IORNEYS.

Patented July 28, 1953 UNITED STATES PATENT OFFICE LIQUID CLEANING DEVICE Clarence J. Schichtl, Yakima, Wash.

Application November 10, 1949, Serial No. 126,602

2 Claims.

By way of explanation, it might be stated that due to the small nozzles used in sprinkling systems used in sprinkling of farm lands, the nozzles frequently become clogged by foreign matter carried into the nozzles by the water, which usually is' supplied from irrigating ditches, streams, rivers, lakes or the like.

It is therefore imperative, that the water entering the sprinkler heads be freed of foreign matter or solids which contribute to the clogged condition of the sprinkler nozzles, and in view of the fact that in the usual agricultural sprinkling systems, water has to be pumped under pressure to operate the sprinkler heads, and since the sprinklers of a system discharge from two gallons per minute to ten gallons per minute or more, it is obvious that only a small amount of water under pressure can be used to keep the usual screening cylinder clean, which is used in screening the water prior to its entrance to the nozzles of the system, mainly because of the cost of producing the necessary pressure and due to erosion and wear on the screened surface of the screening member, due to a continuous flow of liquid from jets which are usually employed in cleaning the screen.

Therefore the primary object of the present invention is to provide a screening means for screening the water prior to its entrance into the pipes of the sprinkling nozzles, the cleaning means being operated intermittently, relieving the screen of the excessive Wear and deterioration due to pressure from cleaning nozzles continuously directing streams of water onto the screen.

Another important object of the invention is to provide a screening device of this character wherein the working parts are so arranged that they will not be subjected to the deteriorating effects of the mud and Water within which the screen is operating, to the end that the life of the apparatus is increased.

Another object of the invention is to provide means within the screening member in the form of a wire mesh basket, for catching the solids or foreign matter screened from the water, so that the solids or foreign matter may be readily removed.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring. to the drawings Figure 1 is a side elevational View of a screening device, constructed in accordance with the inventiom Fig. 2 is a plan view thereof.

Fig. 3 is an end elevational view of the device.

Fig. 4 is a sectional view taken on line 4- 4 of Fig. 3.

Fig. 5 is an enlarged plan view illustrating the nozzle carriage. I

Fig. 6 is a sectional view taken on line 6-6 of Fig. 5.

Fig. '7 is a fragmental detail view, illustrating the means for rotating the cylindrical screen of the cleaner.

Fig. 3 is an elevational detail view illustrating the type of pawl used in rotating the cylinder.

Referring to the drawings in detail, the device comprises a frame embodying parallel side bars 5 constructed preferably of angle bar material, the side bars 5 being connected at points adjacent to their ends, by means of the end bars 6 and I. At the rear end of the body portion or frame, are vertical supporting legs 8 also constructed of angle bar material.

At the forward end of the body portion or frame, is the plate 9 that closes the front end of the body portion or frame, with the exception of the circular opening l0, formed therein;

The plate 9 is provided with a forwardly extended upper flange I I secured to the end bar 6, and to this flange II, are bolted the depending bearing arms l2 which provide supports for the wheels [3 that extend inwardly, on the stub shafts I4.

The free ends of the arms ii. are held in spaced relation with respect to each other, by means of the bar I 5, which is shown as welded thereto.

At the rear end of the body portion or frame, is the bearing arm it which hangs from the frame, the arm it having the bearing ll at its lower end, in which the shaft [8 secured to the disc [9, operates. This disc l9 closes one end of the screening cylinder 20 which embodies a forward ring 2H connected with the disc 19, by means of the spaced rods or bars 22 to which the wire mesh material 23 is secured. Extending forwardly from the plate 9 and arranged in circular formation, is the gasket 24 providing a seal between the ring 2| and wall of the opening formed in the plate 9, to exclude water, solids and foreign matter.

Supported within the screening cylinder, at a point adjacent to the upper portion thereof, is the basket 24 that has its open side disposed upwardly to permit foreign matter to fall thereinto, when swept off by a jet of water from the traveling nozzle. This basket is constructed of wire mesh material allowing the water to drain therefrom. As shown, the basket is supported be-- tween angle bars 25 which provide a rest for the basket to permit the basket to be readily and easily removed and dumped of its contents.

The end bar 1 disposed at the rear end of the body portion or frame, is provided with an opening disposed at a point intermediate its ends, which opening accommodates the piston rod 26 that operates in the cylinder 21 that is formed with the flange 28 at its forward end, the flange 28 being connected to the upstanding flange of the end bar l", as shown by Figs. 5 and 6 of the drawings. The piston, not shown, is connected with the end of the piston rod 26, and operates in the cylinder 21.

Extending longitudinally of the body portion or frame, and disposed intermediate the end bars 6 and I, is the track 28, which is of I beam construction, that is connected at its ends with the bars 6 and i, the open sides of the i beam being disposed upwardly and downwardly.

The reference character 23 indicates a carriage which embodies spaced upper and lower plates 3t and 3| respectively, between which plates, the wheels 32 operate, the wheels moving over opposite side edges of the track, as clearly shown by Fig. 5 of the drawings.

The piston rod 29 has pivotal connection with the carriage 29 at 33, so that as the piston rod 25 operates, the carriage will be moved longitudinally of its track.

This carriage 29 provides a support for the spraying nozzle 34 that directs a stream of water against the deflector plate 35 which is secured to the carriage 29, and so arranged that the stream of water striking the deflector plate, will be deflected from the outer to the inner surface of the screening cylinder.

The hose 36 is connected with the nozzle 3% and passes from the pipe 3?, to deliver water from the pipe 31 to the nozzle. This pipe 31 connects with the valve 38 that also connects with the pipe 39 that enters the outer end of the cylinder 2?, as shown by Fig. 2 of the drawings. The valve 38 provides means whereby the flow of water through the pipe 39 may be cut off, if desired.

Connected with the carriage 28, is the flexible cable 40 which operates over the pulley i! mounted on the end bar i, from where it passes downwardly and connects with the weight 42 with the result that when the carriage moves forwardly, to the limit of its movement, and the water pressure in the cylinder is released, the weight will operate to return the carriage to the position as shown by Fig. 2 of the drawings, or the initial position of the carriage.

The pipe 31 connects with the pipe 4-3 which in turn is connected with a suitable source of water supply. Mounted within the pipe a3, is the vertically movable valve 44 which is of the type provided with a spring to normally urge the valve to its closed position, after operation. A stem 45 of the valve 44, extends vertically, and is engaged by the arm 43 which is pivotally mounted at the upper end of the bracket 41 that is secured to the bar 48 extending forwardly from the motor supporting plate 49 mounted on the frame, and on which the motor 58 is secured. Secured to a shaft of the reduction gearing 53', is the eccentric 6| to which the arm 52 is connected, the arm 52 having an elongated opening 53 in which the pin 54 is secured, the pin 54 providing a bearing for the member 55 mounted on the upper end of the ratchet arm 56, the ratchet arm 56 having the ratchet tooth 51 at its free end, which tooth engages the teeth 58 of the ring 59 that is secured at the forward end of the screening cylinder. Guard plates 50 are secured at opposite sides of the free end of the ratchet arm 56 and prevent lateral movement of the ratchet arm with respect to the ring 59.

The eccentric 54 operates in contact with the arm to depress the arm with each rotation of the arm 52, resulting in the valve stem d5 of the valve M being moved downwardly, opening the valve and allowing a volume of water to pass through the pipes of the system, to supply the nozzle 34 as well as the cylinder 2?, with water.

In the operation of the device, the device is positioned in a stream or in the body of water which may be a ditch, the body portion of the device being arranged so that the open end of the screening cylinder will be disposed upstream, the water to be screened, passing directly into the screening cylinder and through the screening material of which the cylinder is formed. The screened water may now be pumped or .irected through pipes leading to sprinkler heads of an irrigating system, not shown, in the usual and well known manner.

The motor 363 is set in motion, with the result that the ratchet arm 56 will operate to engage the teeth of the ratchet ring 59. W ith each rotation of the eccentric 5!, the ratchet arm 53 will move the ratchet ring 59 and screening cylinder, the distance equal to the length of a ratchet tooth or teeth of the ratchet wheel. With this movement, the cam 5i will move the arm is downwardly, opening the valve 44 and releasing a quantity of water to the hose 35 through which the water is directed to the nozzle 35 and from which the water is directed against the deflector plate 35, which deflects the spray of water onto the outer surface of the wire mesh cylinder directly above the basket 24, flushing any foreign matter from the cylinder into said basket to maintain the mesh open so that the purpose of the invention can be accomplished. It will also be noted that as the water is directed into the hose 3%, a quantity of the water will pass through the pipe 39 and into the cylinder 2?, operating the piston within the cylinder to move the carriage 29 longitudinally of its track 23, to the end that the water sprayed into the cylinder, will be distributed throughout the length of the cylinder.

When the carriage 29 reaches the limit of its movement towards the entrance end of the screening cylinder, the weight 32 will act to return the carriage to its initial position, the piston in the cylinder 21, operating to force the water in the cylinder from the cylinder, returning the water through the pipe 39 and through the hose 3% to th nozzle 34.

From the foregoing it will be seen that due to the construction shown and described, I have provided means whereby the water to be sprayed through irrigating or sprinkling nozzles of an irrigating system, will be freed of all solids and foreign matter which would otherwise pass into the nozzles to clog the spraying openings thereof.

It will further be seen that the operation of the device is automatic, in that when the carriage which supports the spray nozzle, reaches the forward end of the screening cylinder, it will be immediately returned and the operation will be repeated, maintaining the screening cylinder clean.

Having thus described the invention, what is claimed is:

1. A screening device of the class described, comprising a frame adapted to be positioned in a stream of water, a horizontally disposed shaft mounted on the frame, a revoluble cylindrical screening member mounted on said shaft, a disc closing one end of the revoluble cylindrical screening member, the opposite end of the screening member being open, through which water is directed to the screening member, the water passing through the mesh of said screening member, a water-spraying nozzle mounted exterioriy of said screening member above said screening mem her, through which water is directed to the screening member as the screening member rotates, flushing foreign matter from the mesh of the screening member, a wire screen basket extending longitudinally throughout the length of the screening member suspended within the upper portion of the screening member around which the screening member rotates, into which inaterial falls from said screening member, means for rotating the cylinder, and means for moving the spraying nozzle longitudinally of the cylinder.

2. A screening device of the class described,

providing a frame adapted to be positioned in a stream of water, a rotatable horizontal cylindrical screening member mounted within said frame, a disc closing one end of the screening member, the opposite end of the screening member being open, through which Water is directed to the screening member, the Water passing through the mesh of said screening member, screening the water, a water spraying nozzle movable longitudinaliy or" the screening member flushing foreign matter from the mesh of the screening member, and a wire mesh basket supported Within the upper portion of the cylinder directly under said Water spray nozzle into which foreign material is flushed from the mesh of said screening member.

CLARENCE J. SCHICI-ITL.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 920,909 Brewer May 11, 1909 1,357,499 Hunt Nov. 2, 1920 1,445,007 Davis Feb. 13, 1923 1,717,604 Haug et al June 18, 1929 1,768,314 Folta June 24, 1930 2,196,793 Hall Apr. 9, 1940