An extendable drain configured to move between a retracted position and an extended position includes a housing and a drain member. The housing includes a top, a bottom, and a sidewall including an annular stretchable sleeve. The housing defines an interior volume configured to be at least partially filled by a fluid causing the annular sleeve to stretch axially, thereby increasing a distance between the top of the housing and the bottom of the housing. The drain member includes an open top fixed to the top of the housing, an open bottom, and a sidewall extending between the top and the bottom of the drain member through the interior volume of the housing. At least partially filling the interior volume of the housing moves the drain member axially causing the sleeve to stretch, thereby increasing the distance between the top of the housing and the bottom of the housing.

An improved nozzle assembly for use with a sprinkler body. The nozzle assembly has a nozzle body having a nozzle insert bore and defining a fluid flow path through the nozzle assembly. A nozzle insert is positioned in the nozzle body and retained within the nozzle assembly. The nozzle insert is rotatable between operating positions. In some embodiments, a spring biased detent and detent notches index the nozzle insert at one of a series of operating positions. The nozzle insert is rotatable between the series of operational positions including the IN (or insertion) position, the RUN position, the OFF position, the FLUSH position, and the LINE FLUSH position. In an alternate embodiments the nozzle insert has detents on a circumference of the nozzle insert. A magnet is positioned in or attached to the nozzle insert. A second magnet is positioned in or attached to the body of the nozzle assembly. The detents are configured to align with detent notches in a faceplate of the nozzle assembly body. When the detents are aligned with the detent notches, the attractive force between the two magnets retains the nozzle insert in one of the operating positions in the nozzle insert bore.

An irrigation nozzle with a rotating deflector is provided whose rotational speed may be controlled by a friction brake. The nozzle may also include an arc adjustment valve having two portions that helically engage each other to define an opening that may be adjusted at the top of the sprinkler to a desired arcuate length. The arcuate length may be adjusted by pressing down and rotating a deflector to directly actuate the valve. The nozzle may also include a radius reduction valve that may be adjusted by actuation of an outer wall of the nozzle. Rotation of the outer wall causes a flow control member to move axially to or away from an inlet.

A sprinkler body for a rotating sprinkler includes a base securable to a source of water under pressure, a plurality of support struts connected to and extending from the base, and a deflector plate support connected to the plurality of support struts and disposed spaced from the base by the support struts. At least one of the plurality of support struts is wedge-shaped with an inward-facing apex. The support struts are configured to create a void in the water spray pattern away from a center pivot pipe and to direct the water spray downward to limit the effect of wind on the spray pattern.

A sprinkler head is disclosed having a fluid distribution cage configured to nutate between an upper sprinkler body plate and a lower sprinkler body plate. The sprinkler head has a projection to cause the fluid distribution cage to hang at a non-horizontal angle prior to initiation of nutation. The projection is configured to move or rotate away from the upper cage plate of the fluid distribution cage during nutation initiation. Preferably the projection is positioned on a gimbal ring that rotates in response to force asserted on the projection by the upper cage plate. Preferably the gimbal ring has two projections positioned on opposing sides of the axis of rotation of the gimbal ring.

A method of processing a workpiece includes supporting the workpiece on a tailstock extending along an axis, thermally processing the workpiece with a processing device, and displacing a portion of the tailstock assembly in response to thermal expansion of the workpiece as a result of processing with the thermal processing device.

A method of covering a surface of a building, the method comprising spraying an expandable foam material onto the surface and allowing the foam material to solidify whereby to form a covering of the surface and a robotic vehicle configured to carry out the method.

A method of covering a surface of a building, the method comprising spraying an expandable foam material onto the surface and allowing the foam material to solidify whereby to form a covering of the surface and a robotic vehicle configured to carry out the method.

In one aspect, a sprinkler is provided having a nozzle, a deflector that receives fluid flow from the nozzle, and a friction brake assembly that controls rotation of a deflector. The friction brake assembly is releasably connected to the frame in order to enhance serviceability of the sprinkler. In another aspect, a sprinkler is provided having a frame, a deflector rotatably connected to the frame, a nozzle, and a nozzle socket of the frame. The nozzle and nozzle socket have interlocking portions that releasably connect the nozzle to the frame. The nozzle may be easily removed for servicing. Further, the nozzle socket can be configured to receive a plurality of nozzles having different flow characteristics. A nozzle can be selected and utilized with the sprinkler according to the desired application for the sprinkler.

The invention relates to a high-pressure rotor nozzle comprising a main body having a channel for supplying a highly pressurised fluid, a nozzle holder which can be rotationally driven for this purpose via a hydraulically generated torque, and which has at least one nozzle connected to the channel in a manner open for fluid and acting in accordance with an axial recoil, wherein a leakage chamber forming a hydraulic axial bearing during operation is provided between the main body and the nozzle holder that can be axially adjusted in relation to same in a recoil-dependent manner, with said leakage chamber being connected to a first gap seal between the main body and the nozzle holder guiding a leakage fluid, wherein the high-pressure rotor nozzle is designed in such a way that the leakage chamber transitions into at least one throttle gap circumferentially surrounding the nozzle holder in an axial sub-region and varying in the axial extension thereof according to the movement path of the nozzle holder, wherein the throttle gap remains the same height over the axial length thereof.