Corner watering circle move

In an irrigated move,

• a set coupling member having a tapered entrance portion,
• a laterally movable line, movable in a predetermined direction,
• said set coupling member extending substantially opposite to said direction,
• a movable coupling member carried by the line and in a position extending in said direction adapted to be moved endwise into the set coupling member,
• the line including carriage means for moving the movable coupling member into the set coupling member,
• a guide carried by one of the coupling members and extending in said direction,
• an actuator rod on the other coupling member and extending opposite to said direction and adapted to enter the guide,
• and control means on the guide and adapted to be actuated by the rod.

In an irrigation move,

• a set coupling member having a tapered entrance portion,
• a movable line,
• a movable coupling member carried by the line and adapted to be moved endwise into the set coupling member,
• carriage means for moving the movable coupling member into the set coupling member,
• a guide carried by the movable coupling member,
• an actuator rod on the set coupling member and adapted to enter the guide,
• and control means on the guide and adapted to be actuated by the rod.

In an irrigation move,

• a set coupling member having a tapered entrance portion,
• a movable line,
• a movable coupling member carried by the line and adapted to be moved endwise into the set coupling member,
• carriage means for moving the movable coupling member into the set coupling member,
• a guide carried by one of the coupling members,
• an actuator rod on the other coupling member and adapted to enter the guide,
• control means on the guide and adapted to be actuated by the rod,
• water supply means turned on when the control means is actuated by the rod,
• and set sprinkler means supplied by the set coupling member.

In a corner water circle move,

• a set coupling member having a funnel-like entrance portion,
• a movable coupling member adapted to be moved endwise into the set coupling member,
• carriage means for moving the movable coupling member into the set coupling member,
• a funnel-like guide carried with the movable coupling member,
• an actuator rod on the set coupling member adapted to have the guide moved thereover,
• and switch means in the guide and adapted to be actuated by the rod.

In a circle move irrigation system,

• an irrigation pipe including a plurality of pipe sections coupled together in which an outer end pipe section is pivotally connected to the other sections,
• a plurality of power-driven inner carriages for moving the other sections about a center pivot,
• a power-driven outer end carriage for moving the outer end pipe section,
• means for supplying water under pressure to the pipe at the center pivot,
• set corner sprinkler means,
• pipe means connected to the corner sprinkling means and having a coupler portion,
• coupling means on the outer end pipe section for coupling to the pipe means,
• and means for driving the outer end carriage and the inner carriages to selectively place them in a first condition in which the coupling means is driven into coupled relationship to the coupling portion and a second condition in which the coupling means clears the coupling portion.

In a circle move irrigation system,

• a flexible center pivot line movable around a center pivot in a field having corner portions and having primary sprinkler means for sprinkling the circle traversed by the line,
• a plurality of set sprinklers outside the circle and adapted to sprinkle the corner portions when supplied with water under pressure,
• a plurality of set coupling members one at each corner portion and pointed in one direction and in a position crosswise to the circle and connected to the set sprinklers,
• a movable coupling member carried by the line at its outer end and pointed in the direction opposite to said one direction for coupling with each of the set coupling members,
• the line when straight serving to hold the movable coupling member in a position clearing the set coupling members and when flexed serving to move the movable coupling member into coupled engagement with one of the set coupling members as the line traverses one of the corner portions,
• line supply means for supplying water under pressure to the line,
• means for driving the line,
• means for stopping the line driving means when the movable coupling member couples with one of the set coupling members,
• means for stopping the primary sprinklers when the movable coupling member is coupled to one of the set coupling members and opening the line supply means to the set coupling member,
• means for closing the line to the set coupling member after sprinkling period of a predetermined period of time,
• means connecting the line to the primary sprinklers,
• means for moving the line rearwardly to move the movable coupling member out of coupled relationship to one of the set coupling members to which it was coupled and to straighten the line,
• and means for moving the straightened line forwardly past the last mentioned set coupling member.