US1712523A

US1712523A - Lawn sprinkler

Info

Publication number: US1712523A
Application number: US217614A
Authority: US
Inventors: Schneider Max
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-09-06
Filing date: 1927-09-06
Publication date: 1929-05-14
Anticipated expiration: 1946-05-14

Description

y 1929- M. SCHNEIDER 1,712,523

LAWN SPRINKLER Filed Sept. 6, 1927 Ill. HHI

IN V EN TOR.

Max'abnejdzr BY .75 Z

ATTORNEYS.

Patented May 14, 1929.

UNITED STATES MAX SCHNEIDER, 03 DENVER. COLORADO.

LAWN SPRINKLER.

Application filed September 6, 1927.

This invent-ion relates to improvements in lawn sprinklers and has reference more par ticularly to an improvedsprinkler of the oscillating type.

For the purpose of irrigating lawns it is often desirable to employ a sprinkler that can be set on the ground and which will sprinkle an area whose size and shape can be varied. In sprinkling parkings the sprinkler must cover a long narrow area; when sprinkling that portion adjacent the house the sprinkler should cover a semi-circular space when placed along one side of the house and when placed at one corner of? the house it should cover a sector shaped area of 270 degrees in extent. W'Vhen large lawns are to be irrigated the sprinkler should cover a whole circle.

It is the object of this invention to produce a sprinkler that can be so adjusted that it will irrigate sectors varying from a few degrees in width to a complete circle.

It is a further object of this invention to produce a sprinkler of the oscillating type which shall be of simple and substantial construction, which can be cheaply made and which will not readily get out of order.

The above and other objects that may be come appznrent as this description proceeds are attained by means of a construction and an arrangement of parts that will now be described in detail and reference for this purpose will now be had to the accompanying drawing in which one embodiment of my invention has been shown and in which:

Fig. 1 is a top plan view of my improved sprinkler,

Fig. 2 is a section taken on line 22, Fig. 1.

Fig. 3 is a section taken on line 3-3, Fig. 2 andshows the relationship of the deflector plate to the oscillating arm and,

Fig. 4 is a section corresponding to that shown in Fig. 3 and shows a slightly modified construction.

In the drawing I have illustrated a base having a ring 5 that is adapted to rest upon the surface of the ground and to which the central body portion 6 is attached by means of a plurality of radial arms or supports *7. The central body portion 6 has an opening 8 whose outer end 9 is threaded so that connection can readily be made between the sprinkler and the end of a hose. The inner end of the opening 8' terminates in an upwardly extending portion 9 that is concen- Serial No. 217,614.

trio with the ring 5. The inner surface of opening 9 is threaded and receives the threaded end 10 of the pivot tube 11. This tube has an annular flange 12 whose lower surface abuts the upper surface 13 of the base and whose upper surface serves as a support for the hollow hub 14 from which the tubular arm 15 extends. Hub 14 can be constructed in any suitable way but has been shown as formed from a cup shaped member whose bottom 16 has a central opening through which tube 11 extends, and a cover 17, that is provided with a downwardly extending circular flange 18 which has its outer surfaces formed with threads that en age corresponding threads in the upper end of the cylindrical side of the cup portion. Cover 17 has a central opening through which tube 11 extends. The holes in the bottom 16 and in the cover 17 are of such size that they make a close fit with the tube, but permit tt'ree rotation of the hub. The upper end of tube 11 has a central threaded opening for the reception of the threaded end 19 of the screw 20; this screw is provided with wings 21 and passes through the washer 22 and the two stops 23 and 24. The

stops

23 and 24 are formed from metal bars having their outer ends 25 bent downwardly and of such length that they intersect the path of the radial tube 15 and limit its movement in both directions. By means of the screw 20 the

stops

23 and 24 may be clamped in any position desired. Tube 11 is also provided with several openings 26 through which water may flow into the interior of hub 14.

For the purpose of producing a force that will cause the tube 15 to oscillate when water is flowing through it, I have provided it with a deflector plate 27 that is attached to the outer end of the tubular arm 15 by means of a pivot 28 whose axis is parallel with the axis of the tube 11. The deflector plate 27 has only a very short section 29 on the inside of the pivot while the part on the outside of the pivot point is quite long and wide. The end 29 is of the same width as the opening in which it is pivoted so that when it is in the position indicated by full lines in Fig. 3 the end of tube 15 will be closed except for the opening 30 and there fore the water must flow out through this opening. The pressure of the water on the surface of the end 29 will tend to hold the deflector plate in the position shown. The

water that flows outwardly through opening 30 strikes the surface of plate 27 and is deflected thereby producing a force that tends to move arm 15 from the full line to the dotted line position in Fig. 1. This force is sufficient to make tube 15 swing with considerable velocity and when it strikes the stop 23 the momentum of the plate 27 will make it move about its pivot from the full line to the dotted line position. The reaction of the water will now produce a force acting in the opposite direction and the arm 15 will swing about its pivot until it engages the stop 24 when its movement will cease abruptly thereby causing the deflector plate to swing about its pivot whereby the direction of the force will be again reversed. By means of the stops the are through which the arm 15 swings can be adjusted to any extent desired. If both of the stops are removed the arm 15 will continue to rotate in the same direction as long as water is flowmg.

In Fig. 4 I have shown a modification in which the plate 27 has been replaced by a tube 31 whose dimension in one direction is equal to the distance between the upper and lower sides of tube 15 but whose width 0 is less than the width cl of the tube 15 so that tube 31 can move from. full line to dotted line position and vice versa. The outer end of the tube 31 is closed and provided with a plurality of slots through which the water will issue. The reaction of the water as it leaves the end of the tube 31 produces a force that makes the tube 15 swing about its pivot. When tube 15 stops suddenly the momentum will cause pivoted tube 31 to swing from full line to dotted line position or in the reverse direction, whereby the direction of the actuating force is also reversed.

From the above it will be apparent that I have produced a sprinkler in which the spray is moved back and forth over a sector of any extent and whose operating mechanism is of exceeding simplicity.

Having described the invention what I claim as new is 1. In a sprinkler having a supporting base and a nozzle pivotally secured thereto, a stop surface located on each side of the nozzle, means comprising a deflector plate pivotally secured near its inner end to the outer end of the nozzle for changing the direction of the water stream from one side oi? the axis of the nozzle to the other, said plate having its center of gravity between its outer end and its pivot point whereby its momentum will cause it to rotate about its pivot whenever the nozzle strikes one of the stops and means tor limiting extent of the rotation of the deflector means.

2. A spray devlce comprising a base, a

hollow pivot secured to the base, means for making connection between the interior of the pivot and a source of water under pressure, a tubular nozzle secured to the pivot by means which permits it to oscillate about the axis of the pivot, said pivot having an opening whereby communication is provided between the interior of the pivot and the nozzle so that water can flow outwardly through the nozzle, a deflector plate attached near its inner end to the outer end of the nozzle by means of a pivot substantially parallel with the pivot about which the nozzle oscillates, said plate serving as a means for deflecting the water stream so that it will flow in a direction at an angle to the axis of the nozzle whereby a force will be produced that tends to rotate the nozzle about its pivot, said plate having its center of gravity between its free end and the pivot, and a stop located on each side of the nozzle.

3. In a sprinkler having a supporting base and a nozzle pivotally secured thereto, a stop located on each side of the nozzle, a deflector plate secured to the outer end of the nozzle by means of a pivot that is substantially parallel with the pivot about which the nozzle moves, the inner end of said plate extending into the tube a short distance, said inner end being adapted to engage the inside of the tube so as to form a stop for limiting the oscillation of the plate about its pivot, the outer end of said plate extending outwardl beyond the pivot point to such a distance t iat the center of gravity of the plate will lie some distance outside of the pivot about which the plate oscillates, whereby when the nozzle is suddenly brought to rest by striking one of the stops the plate will continue to move until it has crossed the axis of the nozzle and occupies a position in which the inner end of the plate contacts with the opposite inside surface of the nozzle.

4. In a sprinkler having a supporting base and a nozzle pivotally secured thereto, a deflector plate secured to the outer end of the nozzle by means of a pivot that is substantially parallel with the pivot about which the nozzle moves, the inner end of said plate extending into the tube a short distance, said inner end being adapted to engage the inside of the tube so as to form a stop for limiting the oscillation of the plate about its pivot, the outer end of said plate extending outwardly beyond the pivot point to such a distance that the center of gravity of the plate will lie some distance outside of the pivot about which the plate oscillates and stops carried by the base for limiting the oscillation of the nozzle.

In testimony whereof I afiix my signature.

MAX SCHNEIDER.