9. IN A SPRAYER, FRAME MEANS INCLUDING AN UPWARDLY EXTENDING PEDESTAL, A BOOM-SUPPORTING PIVOT MEMBER COMPRISING A GENERALLY CENTRAL PIPE MEMBER ADAPTED TO BE ROTATABLY MOUNTED ON SAID PEDESTAL AND A PAIR OF UPWARDLY DIVERGING MEMBERS FIXED AT THEIR LOWER ENDS TO OPPOSITE SIDES OF SAID PIPE MEMBER BELOW THE UPPER END THEREOF, A SPRAY BOOM PIVOTED TO THE UPPER ENDS OF SAID UPWARDLY DIVERGING MEMBERS, AND GENERALLY VERTICALLY ACTING MEANS CONNECTED BETWEEN SAID PIPE MEMBER BETWEEN SAID UPWARDLY DIVERGING MEMBERS AND SAID BOOM FOR RAISING AND LOWERING THE LATTER.