Patent ID: 9695554
Date: 2017-07-04
CPC Classifications: E01B,H02N

Claim:
1. A composite railway sleeper comprising: an outer coating shell made of composite plastic material; and a shaped structural core, made of a material comprising at least a prestressed reinforced concrete contained within said outer coating shell, characterized in that said outer coating shell comprises in an upper outer face two distinct and opposite groups of grooves suitable to receive angular guide plates belonging to pre-assembled elastic rail fastening systems for connection of two respective rails with said railway sleeper and further in that said material of said shaped structural core comprises steel in a shape of outlined stiffening engagements embedded in said concrete, wherein the material of said shaped structural core further comprises a mixture of plastic material and recycled rubber in a pair of composite blocks embedded in said concrete and connected to each other through one or more steel bars embedded in said concrete, characterized in that said outlined stiffening engagements are welded to a folded containment and support sheet, further characterized in that each of said outlined stiffening engagements comprises at least one side edge with a guide tooth that fits into a channel of vertical engagement made in at least one opposite side of each said composite blocks.