Well cover for machine tool

Claim 1

IN A MACHINE TOOL, A MOVABLE TABLE UPON WHICH TO SECURE OBJECTS TO BE WORKED UPON; A MOUNTING FOR SAID TABLE COMPRISING WALLS HAVING A TOP SURFACE, SAID WALLS BEING DISPOSED TO PROVIDE A WELL HAVING LONGITUDINAL EDGES FORMING A SLOT OPENING UPWARDLY FROM SAID WALL, SAID MOVABLE TABLE BEING MOUNTED TO MOVE OVER AND ABOVE THE SAID TOP SURFACE OF THE WALL; A COVER SPANNING SAID SLOT FOR EXCLUDING EXTRANEOUS MATERIAL FROM SAID WELL; SAID COVER BEING AN ELONGATED, RESILIENT, SELF-REFORMING, STIFF, TRANSVERSELY ARCHED MEMBER WHICH IS FORMED WITH DOWN STRUCK LEGS ALONG ITS LONGITUDINAL EDGES, SAID DOWN STRUCK LEGS FORMING AT THEIR LOWER EXTREMITIES SEALING MEANS SPACED FROM AND ALONG THE LONGITUDINAL EDGES OF THE SLOT; A BRACKET SECURED TO SAID TABLE MOUNTED TO EXTEND DOWN-WARDLY INTO SAID SLOT, SAID BRACKET HAVING AN OPENING THEREIN ABOVE THE LEVEL OF SAID TOP SURFACE FOR THREADING SAID COVER LONGITUDINALLY THERETHROUGH AND CAUSING THE COVER TO RISE LOCALLY ABOVE THE LEVEL OF SAID SURFACE; MEANS FOR FASTENING THE ENDS OF THE COVER TO SAID MOUNTING FOR PREVENTING ENDWISE MOVEMENT OF THE COVER; AND DEPRESSOR MEANS BEARING DOWNWARDLY ON EITHER SIDE OF SAID BRACKET AND ON PORTIONS OF THE TOP OF SAID COVER FOR VERTICALLY POSITIONING SAID LEGS IN SEATED AND SEALING ENGAGEMENT WITH SAID TOP SURFACE AND SPACED FROM AND ON OPPOSITE EDGES OF THE SLOT SAID DEPRESSOR BEING DISPOSED TO DEPRESS SAID PORTIONS OF THE COVER UNTIL THE SAME ARE COMPRESSED AND TRANSVERSELY FLEXED TO SPACE SAID LONGITUDINAL EDGES OF THE DOWNSTRUCK LEGS OUTWARDLY FROM SAID SEATED ENGAGEMENT.