Current conductor rail system

Claim 2

IN A CURRENT CONDUCTOR RAIL SYSTEM FOR SUPPLYING ELECTRICAL ENERGY TO ELECTRICALLY ENERGIZABLE MOVABLE UTILITIES WHICH CARRY CURRENT COLLECTOR DEVICES ENGAGEABLE WITH THE CONDUCTOR RAILS OF SUCH A SYSTEM, (A) A PLURALITY OF INSULATOR BLOCK ASSEMBLIES SPACED APART ALONG THE LENGTH OF SAID CONDUCTOR RAILS AND SUPPORTING THE RAILS IN DESIRED POSITION BY ENGAGEMENT WITH THE BASE PART THEREOF, EACH OF SAID ASSEMBLIES INCLUDING (1) A BRACKET HAVING UPPER AND LOWER SPACED APART HORIZONTAL FLANGES, MEANS FOR DETACHABLY SECURING A PLURALITY OF VERTICALLY STACKED INSULATOR BLOCKS TO AND BETWEEN SAID FLANGES IN FIXED POSITION, AND MEANS FOR SECURING SAID BRACKET TO A SUPPORTING STRUCTURE, (2) A PLURALITY OF VERTICALLY STACKED IDENTICAL INSULATOR BLOCKS EACH HAVING A PAIR OF UPPER AND LOWER PARALLEL PLANAR SURFACES ARRANGED WITH THE LOWER SURFACE OF ONE BLOCK SEATED UPON THE UPPER SURFACE OF THE BLOCK IMMEDIATELY THEREBELOW, AND WITH THE STACKED HEIGHT OF SAID INSULATOR BLOCKS SUBSTANTIALLY CORRESPONDING TO THE DISTANCE BETWEEN THE UPPER AND LOWER HORIZONTAL FLANGES OF SAID BRACKET, EACH OF SAID INSULATOR BLOCKS BEING PROVIDED WITH A PAIR OF LATERALLY SPACED SUPPORT TABS EXTENDING FORWARD FROM THE FRONT FACE OF SAID INSULATOR WITH A VERTICAL SPACING THEREBETWEEN SUBSTANTIALLY EQUAL TO THE VERTICAL EXTENT OF SAID CONDUCTOR RAIL BASE PART, THE UPPER AND LOWER ONES OF SAID SUPPORT TABS BEING TURNED RESPECTIVELY DOWNWARD AND UPWARD AT THEIR FORWARD ENDS WITH POINTS OF TERMINATION SPACED VERTICALLY APART A DISTANCE SUBSTANTIALLY EQUAL TO THE VERTICAL EXTENT OF SAID CONDUCTOR RAIL WEB AND SPACED FORWARD FROM SAID FRONT FACE BY AN AMOUNT SUBSTANTIALLY EQUAL TO THE HORIZONTAL THICKNESS OF SAID RAIL BASE PART, THE LATERAL SPACING OF SAID SUPPORT TABS BEING SUCH THAT NO PART OF THE UPPER ONE DIRECTLY OVERLIES THE LOWER ONE.

Claim 3

AN INSULATOR FOR SUPPORTING A CONDUCTOR RAIL OF THE TYPE HAVING A LONGITUDINALLY EXTENDING CURRENT-CARRYING HEAD PORTION AND A LONGITUDINALLY EXTENDING SUBSTANTIALLY FLAT BASE PORTION FOR MOUNTING THE RAIL IN POSITION, SAID INSULATOR COMPRISING A MAIN BODY PORTION OF MOLDED ELECTRICAL INSULATION MATERIAL HAVING FLAT TOP AND BOTTOM SURFACES DISPOSED IN PARALLEL RELATION AND A FRONT FACE UPON WHICH ARE INTEGRALLY FORMED A PAIR OF RAIL ENGAGING LUGS WHICH PROJECT FORWARDLY OF SAID FRONT FACE AND ARE EACH PROVIDED AT ITS END WITH A LIP LYING IN A PLANE SPACED FROM AND PARALLELING SAID FRONT FACE, SAID LUGS BEING RESPECTIVELY DISPOSED ADJACENT THE OPPOSITE VERTICALLY SPACED ENDS OF SAID INSULATOR BODY PORTION IN DIAGONALLY SPACED RELATION AND WITH THE LIPS THEREOF RESPECTIVELY INTURNED TO CONJOINTLY FORM WITH THE FRONT WALL OF THE INSULATOR A PAIR OF OPPOSED CHANNELS ADAPTED TO EMBRACE OPPOSITE EDGES OF THE FLAT BASE PORTION OF THE RAIL TO BE SUPPORTED BY SAID INSULATOR, THE RELATIVE SPACING OF SAID LUGS BEING SUCH THAT UPON ROTATION OF THE BLOCK THROUGH AN ANGLE OF SUBSTANTIALLY 45 DEGREES RELATIVELY TO THE RAIL SUPPORTED THEREBY SAID RAIL-EMBRACING CHANNELS ARE FREED OF THE RAIL WHEREBY TO PERMIT THE INSULATOR TO BE BODILY SHIFTED REARWARDLY OF THE RAIL AND OUT OF ENGAGEMENT THEREWITH, SAID INSULATOR BEING OF SYMMETRICAL SHAPE WITH REFERENCE TO BOTH ITS VERTICAL AND HORIZONTAL MEDIAN PLANES TO THEREBY RENDER IT REVERSIBLE TOP FOR BOTTOM AND HAVING A BORE EXTENDING THERETHROUGH WITH ITS AXIS EXTENDING PERPENDICULARLY TO THE FLAT TOP AND BOTTOM SURFACES THEREOF AND LOCATED IN THE VERTICAL MEDIAN PLANE OF THE INSULATOR AT A POINT SPACED REARWARDLY OF THE FRONT FACE OF THE INSULATOR WHEREBY A PLURALITY OF IDENTICAL INSULATORS MAY BE VERTICALLY STACKED FLATWISE ONE UPON THE OTHER FOR MOUNTING IN POSITION BY A SINGLE BOLT PROJECTED THROUGH THE VERTICALLY ALINED BORES OF SAID STACKED INSULATORS.

Claim 4

AN INSULATOR FOR SUPPORTING A CONDUCTOR RAIL OF THE TYPE HAVING A LONGITUDINALLY EXTENDING CURRENT-CARRYING HEAD PORTION AND A LONGITUDINALLY EXTENDING SUBSTANTIALLY FLAT BASE PORTION FOR MOUNTING THE RAIL IN POSITION, SAID INSULATOR COMPRISING A MAIN BODY PORTION OF MOLDED ELECTRICAL INSULATION MATERIAL HAVING FLAT TOP AND BOTTOM SURFACES DISPOSED IN PARALLEL RELATION AND A FRONT FACE UPON WHICH ARE INTEGRALLY FORMED A PAIR OF RAIL ENGAGING LUGS WHICH PROJECT FORWARDLY OF SAID FRONT FACE AND ARE EACH PROVIDED AT ITS END WITH A LIP LYING IN A PLANE SPACED FROM AND PARALLELING SAID FRONT FACE, SAID LUGS BEING RESPECTIVELY DISPOSED ADJACENT THE OPPOSITE VERTICALLY SPACED ENDS OF SAID INSULATOR BODY PORTION IN DIAGONALLY SPACED RELATION AND WITH THE LIPS THEREOF RESPECTIVELY INTURNED TO CONJOINTLY FORM WITH THE FRONT WALL OF THE INSULATOR A PAIR OF OPPOSED CHANNELS ADAPTED TO EMBRACE OPPOSITE EDGES OF THE FLAT BASE PORTION OF THE RAIL TO BE SUPPORTED BY SAID INSULATOR, THE RELATIVE SPACING OF SAID LUGS BEING SUCH THAT UPON ROTATION OF THE BLOCK THROUGH AN ANGLE OF SUBSTANTIALLY 45 DEGREES RELATIVELY TO THE RAIL SUPPORTED THEREBY SAID RAIL-EMBRACING CHANNELS ARE FREED OF THE RAIL WHEREBY TO PERMIT THE INSULATOR TO BE BODILY SHIFTED REARWARDLY OF THE RAIL AND OUT OF ENGAGEMENT THEREWITH, SAID INSULATOR BEING OF SYMMETRICAL SHAPE WITH REFERENCE TO BOTH ITS VERTICAL AND HORIZONTAL MEDIAN PLANES TO THEREBY RENDER IT REVERSIBLE TOP FOR BOTTOM AND HAVING A BORE EXTENDING THERETHROUGH WITH ITS AXIS EXTENDING PERPENDICULARLY TO THE FLAT TOP AND BOTTOM SURFACES THEREOF AND LOCATED IN THE VERTICAL MEDIAN PLANE OF THE INSULATOR AT A POINT SPACED REARWARDLY OF THE FRONT FACE OF THE INSULATOR WHEREBY A PLURALITY OF IDENTICAL INSULATORS MAY BE VERTICALLY STACKED FLATWISE ONE UPON THE OTHER FOR MOUNTING IN POSITION BY A SINGLE BOLT PROJECTED THROUGH THE VERTICALLY ALINED BORES OF SAID STACKED INSULATORS.