Drive assembly for a reaction drive sprinkler

A rotatable water sprinkler, comprising:

• a range tube for receiving water from a water supply pipe and for discharge of the water in the form of two water streams projected generally in an outward direction with respect to the supply pipe;
• means for mounting said range tube to the water supply pipe for rotation with respect thereto and for receiving water therefrom;
• a drive nozzle mounted on said range tube for discharge passage of one of said water streams;
• drive means pivoted with respect to said range tube and including oppositely oriented deflector spoons for respective interruption of said one stream for driving said range tube respectively in opposite rotational directions about the water supply pipe;
• diverter means generally between said drive nozzle and said deflector spoons and movable between a first position diverting said one stream for interruption by one of said spoons and a second position diverting said one stream for interruption by the other of said spoons;
• and
• a reversing mechanism for moving said diverter means between said first and second positions.

A rotatable water sprinkler, comprising:

• a range tube having an inlet end portion and a discharge barrel portion disposed angularly with respect to each other, and an elbow portion connected between said inlet end and barrel portions and cooperating therewith to define a flow path for passage of water through said range tube and projection therefrom as a relatively large water stream, said range tube further including a bleed opening formed generally at the inside curvature of said elbow portion for bleed passage and outward projection of a relatively small portion of the water in the flow path as a relatively small water stream;
• a diverter tube mounted on said range tube for receiving the small water stream projected from the bleed opening, said diverter tube being movable between first and second positions for diverting the relatively small water stream respectively in two directions;
• a drive arm pivoted to said range tube and including two oppositely oriented deflector spoons, one of said spoons being for interrupting the relatively small water stream when said diverter tube is in said first position resulting in reaction forces to rotate said range tube in one direction with respect to said bearing assembly, and the other of said spoons being for interrupting the relatively small water stream when said diverter tube is in said second position resulting in reaction forces to rotate said range tube in an opposite direction;
• and
• a reversing mechanism for switching said diverter tube from said first position to said second position at one end limit of a preselected arcuate path of rotation of said range tube with respect to said bearing assembly and for switching said diverter tube from said second position to said first position at the other end limit of said preselected arcuate path of rotation.

In a rotatable water sprinkler having a range tube for rotatable connection with respect to a water supply pipe to receive water from the supply pipe and to project the water in the form of at least one water stream in a generally outward direction with a selected angle of inclination with respect to the supply pipe, a drive assembly, comprising:

• reaction drive means including a drive arm pivoted with respect to the range tube and supporting a pair of generally oppositely disposed deflector spoons for selectively interrupting the projected water stream respectively to drive the range tube in opposite rotational directions;
• nozzle means mounted on the range tube for discharge passage of the water stream;
• diverter means positioned generally between said nozzle means and said deflector spoons and movable between a first position directing the water stream in a first direction for interrupting engagement with one of said deflector spoons and a second position directing the water stream in a second direction for interrupting engagement with the other of said deflector spoons;
• and
• means for shifting said diverter means between said first and second positions.