Terminal board assembly

Claim 1

AN ELECTRICAL APPARATUS COMPRISING A HOUSING, A CHASSIS STRUCTURE SLIDABLY MOUNTED IN SAID HOUSING, AT LEAST ONE ROTATABLE SUBCHASSIS STRUCTURE MOUNTED IN SAID CHASSIS, MEANS FOR PIVOTING THE SUBCHASSIS TO A POSITION NORMAL TO THE CHASSIS, A PLURALITY OF SUBSTANTIALLY FLAT FRAME MEMBERS MOUNTED ON SAID SUBCHASSIS IN SPACED, VERTICALLY STACKED RELATION FOR HOUSING A PLURALITY OF ELECTRICAL COMPONENTS, MEANS AFFIXED TO THE UPPER AND LOWER SURFACES RESPECTIVELY OF EACH OF SAID PLURALITY OF FRAME MEMBERS ALONG ONE SIDE THEREOF FOR PIVOTALLY INTERCONNECTING EACH FRAME MEMBER WITH AN ADJACENT FRAME MEMBER, AND MEANS ON EACH OF SAID PLURALITY OF FRAME MEMBERS ALONG ONE OTHER SIDE ONLY FOR SPACING AND NORMALLY LOCKING EACH OF THE PLURALITY OF FRAME MEMBERS WITH AN ADJACENT FRAME MEMBER IN PARALLEL RELATIONSHIP THEREWITH, SAID ONE OTHER SIDE BEING PARALLEL TO SAID ONE SIDE HAVING SAID PIVOTALLY INTERCONNECTING MEANS AFFIXED THEREALONG, AND SAID SPACING AND LOCKING MEANS BEING RELEASABLE ON EACH OF SAID PLURALITY OF FRAME MEMBERS FOR UNLOCKING FOR ROTATING EACH FRAME MEMBER TO A POSITION NORMAL TO THE LOCKED POSITION TO INSPECT THE ROTATED FRAME MEMBER AND TO EXPOSE THE ADJACENT FRAME MEMBER.