Fluid sprinkling – spraying – and diffusing – Flexible flow line or outlet storage or retrieval means
Patent
1979-11-22
1982-12-21
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Flexible flow line or outlet storage or retrieval means
239199, B05B 318
Patent
active
043645186
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a self-propelled irrigator for irrigation of row crops, lawns, and the like areas, and comprising a hose wound up on a reel, water from a stationary tap flowing through said hose to a nozzle unit such as a sprinkler and to an outlet through a driving wheel comprising containers along its periphery, said containers being supplied with water when they are in an uppermost position in front of the vertical, diametral plane of the wheel and releasing water during the movement past their lowest position.
BACKGROUND ART
German patent specification No. 215,616 discloses an irrigator comprising a water distributing pipe situated between two driving wheels. Along the periphery these driving wheels comprise tiltable cups, which are supplied with water when they are in their uppermost position and emptied when they hit a stop in their lowest position and thereby tilt. These known cups are therefore only filled with water when they are in a particular uppermost position, which, especially when the apparatus is being started, involves an insufficient or no propellant moment. Furthermore, the mechanical tilting of the cups in their lowest position involves a sudden emptying which does not provide a necessary braking effect when the apparatus moves downhill. Consequently, the apparatus moves forwards at an uncontrollable speed, to which must be added that these tiltable cups are expensive to manufacture and to keep in repair.
DISCLOSURE OF INVENTION
The object of the invention is to provide an inexpensive apparatus of the above type, which ensures a more regular and a more powerful propulsion compared to these known apparatuses in such a manner that the apparatus according to the invention--in spite of the considerable and varying load from a hose wound up on the reel--can move forwards at a uniform speed even on a slightly hilly ground, and which furthermore permit a uniform irrigation with controllable amounts of water.
The self-propelled irrigator according to the invention is characterised in that the containers are chambers separated by partitions curved backwards in the direction of rotation relative to the wheel radii, said partitions connecting two side walls perpendicular to the wheel axis, and whereby the outer portions of said partitions form guiding plates inclining towards the wheel axis in such a manner that they can guide the trickling or overflowing water into a narrow slot at the trailing edge of the partition ahead of the direction of rotation when the chambers are in their uppermost positions in front of the vertical, diametral plane of the wheel when seen in the driving direction, and furthermore in such a manner that the inlet slots turning downwards on the rear half of the wheel form flow restrictors for the outflowing water.
The driving wheel can be inexpensively manufactured, e.g. of plastics, and requires no maintenance. In addition, a uniform irrigation of the area is obtained since the apparatus moves forwards by a considerably power and at a uniform speed, also when moving on hilly grounds. The constant, controllable jet of liquid through the outlet fills the chambers on the front of the wheel, since the water--when the uppermost chamber at the start is filled--flows into the preceding chamber and--when this chamber has been filled--forwards to the next chamber situated therebelow etc., until the torque is sufficient for driving the wheel forwards. Subsequently, the chambers are slowly emptied at the back of the wheel, which provides a necessary braking effect and consequently a uniform, stepwise operation. The wheel is influenced by imbalance implying that the wheel moves forwards at regular intervals each time a plurality of chambers have been filled. Then the water flows out, and the wheel stops until a corresponding plurality of new chambers has been filled. The slow emptying of the chambers implies that the tendency of the wheel to roll faster when driving downhill is counteracted because a higher number of not yet emptied chambers ar
REFERENCES:
patent: 1456464 (1923-05-01), Rolland
patent: 1507506 (1924-09-01), Murphy
patent: 1658202 (1928-02-01), Jones
LandOfFree
Self-propelled irrigator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-propelled irrigator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-propelled irrigator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-402758