Fabricated conduit type pipe line valves

Claim 1

IN A FABRICATED GATE VALVE; A BODY HAVING AN INLET AND AN OUTLET AND A CENTRAL VALVE CHAMBER THEREBETWEEN WITH A VALVE GATE THEREFOR; THE VALVE CHAMBER BEING DEFINED ON ITS SIDE PORTIONS BY ELONGATED RAIL MEMBERS OPPOSITELY DISPOSED; CAST PORTED SPOOLS OPPOSITELY DISPOSED COMMUNICATING WITH SAID VALVE CHAMBER; THE FRONT AND REAR PORTIONS OF THE VALVE CHAMBER BEING DEFINED IN PART BY SAID CAST PORTED SPOOLS, THE LATTER MEMBERS HAVING TRANSVERSELY EXTENDING INTEGRALLY CAST INNER FLANGE PORTIONS OF PLATE-LIKE SUBSTANTIALLY POLYGONAL CONFIGURATION; OPPOSITELY DISPOSED TRANSVERSE PLATES BOTH ABOVE AND BELOW THE SAID INNER FLANGE PORTIONS OF SAID SPOOLS AND BEING OF THE SAME WIDTH AS THE INNER FLANGE PORTIONS OF THE SAID SPOOLS; PIPE LINE CONNECTING MEANS ATTACHED TO THE OUTER END OF SAID PORTED SPOOLS; SAID ELONGATED SIDE RAIL MEMBERS RESPECTIVELY JOINED ON EDGE PORTIONS THEREOF TO THE SAID PLATE-LIKE FLANGE PORTIONS OF THE SPOOLS AND TO EACH OF THE SAID TRANSVERSE PLATES ABOVE AND BELOW THE SAID PLATE-LIKE PORTIONS OF SAID SPOOLS; A BASE MEMBER JOINED TO SAID PLATE-LIKE MEMBERS TO CLOSE THE LOWER LIMITS OF THE VALVE CHAMBER; AND BONNET FLANGE CONNECTING MEANS WELDED TO UPPER EDGES RESPECTIVELY OF SAID UPPER TRANSVERSE PLATES AND SAID SIDE RAIL MEMBERS.