Swinging rain gauge

Claim 1

In combination, a rain gauge and wind direction and velocity indicator, comprising a substantially vertical supporting rod, fastening means securing said supporting rod to a supporting structure, a substantially flat, planar, vertically disposed, wind operated directional fin rotatably supported at one vertical edge thereof to said rod and having an arcuate, convex edge opposite said one vertical edge, means supported on said rod adjacent said fin and having indicia thereon for cooperation with said fin to indicate wind direction as said fin is caused to rotate about said rod responsive to wind direction, a substantially flat, planar, wind operated wind velocity vane having a longitudinally extending slot therein with said fin disposed through said slot and substantially identical portions of said vane disposed on opposite sides of said fin, pivot means connecting an upper edge portion of the vane with an upper portion of said fin adjacent the vertical edge thereof for pivotal movement of said vane about an axis perpendicular to the plane of the fin so that a lower edge portion of the vane moves along the arcuate edge of the fin responsive to wind velocity, suitable indicia on the fin at the arcuate edge thereof to indicate the wind velocity, an elongate, tubular, rain collecting receptacle supported on each of said vane portions on opposite sides, respectively, of said fin, said receptacles thus maintained at all times with their axes parallel to the direction of rainfall, each of said receptacles having an open upper end and a closed lower end and having indicia thereon to indicate the amount of rainfall collected therein, the upper ends of the receptacles projecting above the upper edges of the fin and vane and having a knife edge configuration to define a precise, known area through which rain will fall, and baffle means in each receptacle to prevent splashing of collected rainfall from the receptacles.