Railroad crossing rail bed unit

Claim 1

A RAILROAD CROSSING RAIL BED UNIT COMPRISING: (A) A CONCRETE RAIL-ANCHORING BASE MEMBER FOR RELEASABLY SECURING RAILROAD RAILS THERETO, THE BASE MEMBER HAVING A CENTRAL SECTION AND PARALLEL SIDE SECTIONS INTEGRAL THEREWITH AND ELEVATED ABOVE THE PLANE OF THE CENTRAL SECTION BY AN INCREMENT SUBSTANTIALLY EQUAL TO THE HEIGHT OF A PAIR OF RAILROAD RAILS ADAPTED TO BE SUPPORTED FREELY IN PARALLEL SPACED RELATION ALONG THE SIDE MARGINS OF THE CENTRAL SECTION, (B) THE INSIDE EDGES OF THE SIDE SECTIONS BEING CONTOURED TO BEAR SUBSTANTIALLY ALONG THEIR FULL LENGTH AGAINST THE OUTSIDE SIDE FACES OF THE WEBS OF THE RAILS, WHEREBY TO SECURE THE LATTER AGAINST OUTWARD AND UPWARD DISPLACEMENT FROM THE BASE MEMBER, (C) CONCRETE RAIL-LOCKING PANEL MEANS DIMENSIONED FOR PLACEMENT BETWEEN THE RAILS OVER THE CENTRAL SECTION OF THE BASE MEMBER WITH THE UPPER SURFACE THEREOF SUBSTANTIALLY COPLANAR WITH THE UPPER SURFACES OF THE SIDE SECTIONS OF THE BASE MEMBER, (D) THE LOCKING PANEL MEANS HAVING OUTSIDE SIDE EDGES CONTOURED TO BEAR SUBSTANTIALLY ALONG THEIR FULL LENGTH AGAINST THE INNER SIDE FACES OF THE WEBS OF THE RAILS AND TO HOLD THE LATTER AGAINST THE INSIDE EDGES OF THE SIDE SECTIONS OF THE BASE MEMBER, (E) AND SECURING MEANS FOR RELEASABLY SECURING THE LOCKING PANEL MEANS TO THE BASE MEMBER, THEREBY RELEASABLY SECURING THE RAILS TO THE BASE MEMBER.