Patent ID: 8887828

Claim:
A remotely adjustable feed system comprising: an actuator adapted for linear back and forth motion along a path, wherein the actuator includes a first spring-loaded piston; a ratchet clutch coupled to the actuator; a lead screw adapted to be coupled to the ratchet clutch; a tool head coupled to the lead screw; a remote controller adapted to control at least one of a stroke frequency and a stroke distance of linear back and forth motion of the actuator; a stop including a second spring-loaded piston; a pulsed air supply, having an on position and an off position, the pulsed air supply coupled to the actuator such that the first spring-loaded piston retracts when the pulsed air supply pulses and the first spring-loaded piston will spring forward in between pulses; and a regulated air supply, adapted to provide a regulated air pressure within a range of air pressures, the regulated air supply coupled to the stop such that the second spring-loaded piston retracts as the regulated air pressure increases; wherein the remote controller is adapted to control a magnitude of the regulated air pressure provided by the regulated air supply to control the position of the stop; and wherein the linear back and forth motion of the actuator causes the ratchet clutch to rotate the lead screw and the rotation of the lead screw causes linear motion of the tool head in a first axis of motion parallel to an axis of the lead screw.