Rotary water sprinklers

Claim 2

A pressure stabilizing device for a water sprinkler of the kind whErein a spray nozzle is disposed at the end of a conduit arm which radiates from a common feed duct, said arm being adapted to rotate about an axis passing through said feed duct under the influence of feed water flowing through the feed duct into the arm, comprising a conduit member, a sleeve member axially slidable on said conduit member, said sleeve member being adapted for connection to the sprinkler and to be rotatable therewith and with respect to said conduit member, an inlet duct adapted to communicate with the interior of the sleeve member via at least one inlet channel, the direction of flow pressure of the water into the sleeve member being such as to bias the sleeve member into closing of the channels and a spring acting on the sleeve in a direction opposite to the bias exerted by the water flow pressure so as to open the channel.

Claim 3

A pressure stabilizing device for a water sprinkler of the kind wherein a spray nozzle is disposed at the end of a conduit arm which radiates from a common feed duct, said arm being adapted to rotate about an axis passing through said feed duct under the influence of feed water flowing through the feed duct into the arm, comprising a conduit member, a sleeve member in which said conduit member is axially slidable, said conduit member being adapted for connection to the sprinkler and to be rotatable therewith and with respect to said sleeve member, an inlet duct adapted to communicate with the interior of said conduit member via at least one inlet channel, the direction of flow pressure of the water into the conduit member being such as to bias the conduit member into closing of the channel, said conduit member having an abutment portion, a ring slidably mounted on said conduit member and keyed from rotation with respect thereto, a spring acting against said ring to urge the later against said abutment portion to urge said conduit member in a direction opposite to the bias exerted by the water flow pressure so as to open the channel.

Claim 4

A pressure stabilizing device for a water sprinkler of the kind wherein a spray nozzle is disposed at the end of a conduit arm which radiates from a common feed duct, said arm being adapted to rotate about an axis passing through said feed duct under the influence of feed water flowing through the feed duct into the arm, comprising a conduit member, a sleeve member in which said conduit member is axially slidable, said conduit member being adapted for connection to the sprinkler and to be rotatable therewith and with respect to said sleeve member, an inlet duct adapted to communicate with the interior of said conduit member via at least one inlet channel, the direction of flow pressure of the water into the conduit member being such as to bias the conduit member into closing of the channel, said conduit member having an abutment portion, a ring slidably mounted on said conduit member and keyed from rotation with respect thereto, a spring acting against said ring to urge the later against said abutment portion to urge said conduit member in a direction opposite to the bias exerted by the water flow pressure so as to open the channel.

Claim 5

A pressure stabilizing device for a water sprinkler of the kind wherein a spray nozzle is disposed at the end of a conduit arm which radiates from a common feed duct, said arm being adapted to rotate about an axis passing through said feed duct under the influence of feed water flowing through the feed duct into the arm, comprising a conduit member, a sleeve member axially slidable on said conduit member, said sleeve member being adapted for connection to the sprinkler and to be rotatable therewith and with respect to said conduit member, an inlet duct adapted to communicate with the interior of the sleeve member via at least one inlet channel, the direction of flow pressure of the water into the sleeve member being such as to bias the sleeve member into closing of channels, and a weight associated with the sleeve member acting to move the latter in a direction opposite to the bias exerted by the water flow pressure so as to open the channel.

Claim 6

A pressure stabilizing device for a water sprinkler of the kind wherein a spray nozzle is disposed at the end of a conduit arm which radiates from a common feed duct, said arm being adapted to rotate about an axis passing through said feed duct under the influence of feed water flowing through the feed duct into the arm, comprising a conduit member, a sleeve member axially slidable on said conduit member, said sleeve member being adapted for connection to the sprinkler and to be rotatable therewith and with respect to said conduit member, an inlet duct adapted to communicate with the interior of the sleeve member via at least one inlet channel, the direction of flow pressure of the water into the sleeve member being such as to bias the sleeve member into closing of channels, and a weight associated with the sleeve member acting to move the latter in a direction opposite to the bias exerted by the water flow pressure so as to open the channel.

Claim 7

A combined water sprinkler and pressure stabilizing device therefor comprising an inlet conduit, a tubular end piece thereof in which are formed a plurality of outlets, a cup shaped distributing member, at least one sprinkler arm radiating from said distributing member, a first sleeve portion integral with said distributing member and slidable on said conduit, a second sleeve portion integral with said distributing member and slidable on said end piece, the direction of flow of water into said distributing member being such as to bias said second sleeve portion into closing the outlets whilst the weight of said distributing member and elements integral therewith being so directed as to displace the second sleeve portion into opening the outlets.

Claim 8

A combined water sprinkler and pressure stabilizing device therefor comprising an inlet conduit, a tubular end piece thereof in which are formed a plurality of outlets, a cup shaped distributing member, at least one sprinkler arm radiating from said distributing member, a first sleeve portion integral with said distributing member and slidable on said conduit, a second sleeve portion integral with said distributing member and slidable on said end piece, the direction of flow of water into said distributing member being such as to bias said second sleeve portion into closing the outlets whilst the weight of said distributing member and elements integral therewith being so directed as to displace the second sleeve portion into opening the outlets.