Abstract: A high-pressure waterjet cutting system includes a pump operable to produce a flow of pressurized hydraulic fluid, a piston receiving the flow of pressurized hydraulic fluid and reciprocating in response to a pressure differential produced by the flow of pressurized hydraulic fluid, and an intensifier connected to the piston and operable to produce a high-pressure flow of water in response to reciprocation of the piston. A valve is positioned to receive the flow of hydraulic fluid and is movable between a first position in which the pressure differential is a first value and a second position in which the pressure differential is a second value less than the first value.

Abstract: A high-pressure waterjet cutting system includes a pump operable to produce a flow of pressurized hydraulic fluid, a piston receiving the flow of pressurized hydraulic fluid and reciprocating in response to a pressure differential produced by the flow of pressurized hydraulic fluid, and an intensifier connected to the piston and operable to produce a high-pressure flow of water in response to reciprocation of the piston. A valve is positioned to receive the flow of hydraulic fluid and is movable between a first position in which the pressure differential is a first value and a second position in which the pressure differential is a second value less than the first value.

Abstract: A total system and method for storage and delivery of heads of various sizes is disclosed. The system and method are particularly adapted for application of circular disc heads to the end of a paper roll during a roll wrapping operation. A plurality of vertically spaced storage racks are provided for handling different sized heads, and a head dispenser including a pickup mechanism for lifting an uppermost head from a storage rack and delivering it to a pickup platen is also provided. The storage racks are preferably inclined to allow gravity feed to indexing positions at the lower ends of each rack. The pickup platen operates independently of the pickup mechanism so that heads can be lifted from the storage rack while the platen is enroute to the pickup location.

Abstract: A total system and method for storage and delivery of heads of various sizes is disclosed. The system and method are particularly adapted for application of circular disc heads to the end of a paper roll during a roll wrapping operation. A plurality of vertically spaced storage racks are provided for handling different sized heads, and a head dispenser including a pickup mechanism for lifting an uppermost head from a storage rack and delivering it to a pickup platen is also provided. The storage racks are preferably inclined to allow gravity feed to indexing positions at the lower ends of each rack. The pickup platen operates independently of the pickup mechanism so that heads can be lifted from the storage rack while the platen is enroute to the pickup location.