Automatic shower for removing a broken web from a fourdrinier wire

Claim 1

APPARATUS FOR USE IN A PROCESS THAT REQUIRES, WHEN A PREDETERMINED CONDITION OCCURS, THE RAPID AUTOMATIC INITIATION OF NORMALLY SEALED SPACED APART FLUID JETS, SAID APPARATUS COMPRISING A MULTIPLICITY OF SPACED-APART NOZZLES, A FLUID SUPPLY MANIFOLD FOR CONTINUOUSLY FURNISHING FLUID UNDER SUPPLY PRESSURE TO SAID NOZZLES, AN EXTENDED RIGID-WALLED CONTROL MANIFOLD NORMALLY FILLED WITH FLUID UNDER PRESSURE WHEN SADI JETS ARE NOT INITIATED, AND DUMP MEANS TO DROP THE FLUID PRESSURE IN SAID CONTROL MANIFOLD; EACH OF SAID NOZZLES DEFINING AN OUTLET PASSAGE THROUGH WHICH A JET OF FLUID CAN PASS, EACH OF SAID NOZZLES HAVING INDEPENDENT PISTON MENS MOVABLE RELATIVE TO SAID CONTROL MANIFOLD, SAID PISTON MEANS HAVING OPPOSITELY DIRECTED WORKING SURFACES AND MOVABLE BETWEEN SEALED AND UNSEALED POSITIONS WITH RESPECT TO SAID OUTLET PASSAGE, SAID CONTROL MANIFOLD BEING IN DIRECT FLUID COMMUNICATION WITH ONE WORKING SURFACE OF SAID PISTON MEANS OF EACH OF THE NOZZLES AND SAID SUPPLY MANIFOLD BEING IN DIRECT FLUID COMMUNICATION WITH THE OPPOSITELY DIRECTED WORKING SURFACE OF SAID PISTON MEANS, SAID MANIFOLDS AND SAID WORKING SURFACES OF SAID PISTON MEANS ARRANGED TO CAUSE FLUID PRESSURE TO ACT DIRECTLY ON SAID PISTON MEANS TO MOVE SAID PISTON MEANS TO SAID SEALED AND UNSEALED POSITIONS, THE PISTON MEANS BEING MAINTAINED IN SAID SEALED POSITION WHEN THE PRESSURE IN SAID CONTROL MANIFOLD IS NOT DROPPED AND IN UNSEALED POSITION WHEN THE PRESSURE IN SAID CONTROL MANIFOLD IS DROPPED, AND A DUMP MEANS ACTUATOR FOR RECEIVING A SIGNAL FROM A DETECTOR FOR SAID PREDETERMINED CONDITION AND AUTOMATICALLY ACTUATING SAID DUMP MEANS UPON RECEIPT OF SAID SIGNAL.