Self-arighting sprinkler head

Claim 1

A SELF-ARIGHTING SPRINKLER HEAD INCLUDING, IN COMBINATION, A HORIZONTALLY DISPOSED, SWIVEL COUPLER HAVING A HORIZONTAL AXIS, SAID SWIVEL COUPLER BEING HOLLOW, OPEN AT ONE END, CLOSED AT THE REMAINING END, PROVIDED WITH A PERFORATED REGION MEDIALLY DISPOSED BETWEEN SAID ENDS, AND ADAPTED FOR COUPLING TO AN ALIGNED, RIGID MOUTH OF AN EXTERNAL FLUID SOURCE AT SAID END; AN ECCENTRIC BEARING BLOCK PROVIDED WITH A HORIZONTAL, ECCENTRICALLY DISPOSED BORE, SAID BEARING BLOCK BEING ECCENTRICALLY JOURNALLED UPON SAID SWIVEL COUPLER OVER SAID PERFORATED REGION THEREOF FOR ROTATION ABOUT SAID HORIZONTAL AXIS, SAID ECCENTRIC BEARING BLOCK BEING PROVIDED WITH A VERTICAL, ROTATOR STEM BORE PROXIMATE SAID CLOSED END OF SAID SWIVEL COUPLER, SAID ECCENTRIC BEARING BLOCK ALSO BEING PROVIDED WITH A PASSAGEWAY INTERCONNECTING SAID ECCENTRICALLY DISPOSED BORE AND SAID VERTICAL, ROTATOR STEM BORE; BEARING MEANS DISPOSED WITHIN SAID ROTATOR STEM BORE; A ROTATOR STEM HAVING A PERFORATED PORTION COMMUNICATING WITH SAID PASSAGEWAY, SAID ROTATOR STEM BEING JOURNALLED WITHIN SAID BEARING MEANS; AND A WATER DISCHARGE HEAD AFFIXED TO SAID ROTATOR STEM SAND ADAPTED TO ROTATE WITHOUT OBSTRUCTION WITH RESPECT TO SAID SWIVEL COUPLER, THE CENTER OF GRAVITY OF THE ECCENTRIC BEARING BLOCK AND ALL THAT IS AFFIXED THERETO TO ROTATE THEREWITH ABOUT SAID HORIZONTAL AXIS OF SAID SWIVEL COUPLER BEING DISPOSED BELOW SAID HORIZONTAL AXIS THEREOF.