Junction box construction

Claim 1

AN ELECTRICAL JUNCTION BOX COMPRISING A CASTING HAVING SIDE, END AND BOTTOM WALLS, TO DEFINE A HOUSING FOR RECEIVING AN ELECTRICAL APPLIANCE THEREIN, AT LEAST ONE WALL BEING PROVIDED WITH A TAPPED BOSS ON THE INTERIOR OF SAID WALL BUT OPENING THROUGH THE SAID WALL TO ACCOMMODATE PASSAGE OF ELECTRICAL CONDUCTORS, SAID BOX BEING OPEN AT ITS TOP PROVIDING A TOP EDGE, SAID BOX HAVING MEANS FOR MOUNTING SAID ELECTRICAL APPLIANCE THEREIN COMPRISING A PLURALITY OF VERTICALLY EXTENDING POSTS, EACH POST HAVING AN UPPER REDUCED DIAMETER PORTION FORMING A TONGUE THEREON EXTENDING UPWARD FROM A SHOULDER, AT LEAST THE REMAINDER OF THE POST BEING INTEGRAL WITH ONE WALL ALONG A LATERAL EDGE OF SAID POST, SAID TONGUE BEING SPACED FROM A PORTION OF SAID ONE WALL WHEREBY TO FORM NOTCH MEANS BETWEEN SAID TONGUE AND WALL PORTION, THE FREE END OF SAID TONGUE BEING AT MOST SLIGHTLY SPACED BELOW THE PLANE OF SAID TOP EDGE, AN APPLIANCE SECURING MEMBER MOUNTED IN SAID BOX IN ENGAGEMENT WITH AT LEAST ONE OF SAID TONGUES AND HAVING A PASSAGEWAY THEREIN EXTENDING NORMAL TO THE PLANE OF SAID BOTTOM WALL ACCOMMODATING SAID ONE TONGUE, A PORTION OF SAID SECURING MEMBER ADJACENT SAID PASSAGEWAY BEING DISPOSED WITHIN THE NOTCH MEANS ASSOCIATED WITH SAID ONE TONGUE SAID ONE TONGUE, MEMBER ENGAGING ON SAID SHOULDER OF SAID ONE TONGUE, AN EDGE OF SAID SECURING MEMBER BEING IN ENGAGEMENT WITH THE WALL ASSOCIATED WITH SAID ONE TONGUE AT SAID NOTCH MEANS, SAID SECURING MEMBER HAVING AT LEAST A THREADED SOCKET THEREIN, THE SAID FREE END ENGAGING THROUGH SAID PASSAGEWAY AND TERMINATING IN A PEENED PORTION THEREOF OVERLYING A PORTION OF THE SECURING MEMBER PERMANENTLY LOCKING SAID SECURING MEMBER TO SAID TONGUE AGAINST BOTH LATERAL AND VERTICAL COMPONENTS OF MOVEMENT.