Trash and moss remover for canals

Claim 1

A TRASH REMOVER COMPRISING: A FIXED BASE HAVING A PLANE HORIZONTAL TOP SURFACE; A RIGID FRAME ROTATABLY MOUNTED ON SAID BASE ABOVE SAID SURFACE FOR MOTION ABOUT A FIXED VERTICAL AXIS; DRIVE MEANS OPERATIVELY CONNECTED TO SAID FRAME ADAPTED TO MOVE SAID FRAME FROM A FIRST POSITION TO A SECOND POSITION ABOUT SAID VERTICAL AXIS; A SUPPORTING ARM CONNECTED TO SAID FRAME FOR PIVOTAL MOTION ABOUT A HORIZONTAL AXIS ON SAID FRAME AND EXTENDING RADIALLY OUTWARD THEREFROM; A FORKED MEMBER PIVOTALLY MOUNTED ON SAID ARM FOR MOTION ABOUT A HORIZONTAL AXIS PERPENDICULAR TO A RADIUS DRAWN FROM SAID VERTICAL AXIS, SAID FORKED MEMBER INCLUDING A PLURALITY OF PARALLEL TINES FIXED TO A SHAFT PIVOTED TO SAID FORKED MEMBER ON AN AXIS THAT EXTENDS RADIALLY WITH RESPECT TO SAID VERTICAL AXIS; STABILIZING MEANS OPERATIVELY CONNECTED TO SAID FRAME AND TO SAID FORKED MEMBER ADAPTED TO MAINTAIN SAID RADIAL AXIS OF SAID SHAFT IN HORIZONTAL POSITION; ELEVATIONAL MEANS ON SAID BASE ADAPTED TO ENGAGE SAID ARM TO THEREBY ELEVATIONALLY POSITION SAID ARM ABOUT ITS HORIZONTAL PIVOTAL AXIS DURING MOVEMENT OF SAID FRAME; MEANS FIXED TO SAID BASE ADAPTED TO ENGAGE SAID FORKED MEMBER SO AS TO SELECTIVELY CAUSE SAID TINES TO ATTAIN A HORIZONTAL POSITION; LATCH MEANS ON SAID FORKED MEMBER ADAPTED TO SELECTIVELY MAINTAIN SAID TINES IN A HORIZONTAL POSITION; AND MEANS ON SAID ARM OPERATIVELY CONNECTED TO SAID LATCH MEANS ADAPTED TO RELEASE SAID TINES FROM ENGAGEMENT THEREWITH RESPONSIVE TO ATTAINMENT OF A PREDETERMINED ELEVATIONAL HEIGHT BY SAID ARM ABOUT THE HORIZONTAL PIVOTAL AXIS.