Ice fishing tip-up

Claim 1

AN ICE FISHING TIP-UP, COMPRISING: A BASE FOR POSITIONING THE TIP-UP ON ICE; A TUBE HAVING A SELATED END AND AN OPEN END AND CONNECTED TO SAID BASE SO THAT SAID SEALED END IS IN A POSITION BELOW THE SURFACE OF THE ICE WHEN SAID BASE IS POSITIONED THEREON AND SAID OPEN END IS PROJECTING ABOVE THE SURFACE OF THE ICE; A VISUAL SIGNAL MEMBER MOUNTED WITHIN SAID TUBE AND MOVABLE IN BOT DIRECTIONS BETWEEN A NONSIGNALING POSITION WITHIN SAID TUBEA ND A SIGNALING POSITION OUTSIDE OF SAID TUBE; SPRING MEANS CONNECTED TO SAID SIGNAL MEMBER TO BIAS SAID SIGNAL MEMBER FOR MOVEMENT FROM SAID NONSIGNALING POSITION TO SAID SIGNALING POSITION, SAID SPRING MEANS EXERTING A BIASING FORCE IN A DIRECTION OF SAID MOVEMENT OF SAID SIGNAL MEMBER WHEN SAID SIGNAL MEMBER IS IN SAID NONSIGNALING POSITION; A ROTATABLE REEL, MEANS CONNECTING SAID REEL TO SAID TUBE TO POSITION SAID REEL ADJACENT SAID SEALED END; AND MAGNETIC COUPLING MEANS INCLUDING A FERROUS PART AND A PERMANENTLY MAGNETIZED PART, ONE OF SAID PARTS BEING CONNECTED TO SAID REEL FOR MOVEMENT THEREWITH AND THE OTHER OF SAID PARTS BEING CONNECTED TO SAID SIGNAL MEMBER FOR MOVEMENT THEREWITH, SAID PARTS BEING MOVABLE IN RESPECT TO EACH OTHER TO A SUFFICIENTLY CLOSE POSITION TO EACH OTHER TO CAUSE SAID PARTS TO PROVIDE A MAGNETIC FORCE GREATER THAN SAID BIASING FORCE WHEN SAID SIGNAL MEMBER IS IN SAID NONSIGNALING POSITION; UPON MOVEMENT OF SAID REEL, SAID ONE OF SAID PARTS BEING MOVED AWAY FROM SAID CLOSE POSITION TO A POSITION TO WHICH SAID PARTS ARE INCAPABLE OF PROVIDING A MAGNETIC FORCE EQUAL TO SAID BIASING FORCE AND THEREBY PERMITTING SAID SPRING MEANS TO MOVE SAID SIGNAL MEMBER TO SAID POSITION OUTSIDE OF SAID TUBE.