A milling system to comminute a material may generally include a hopper feeder system, a cutting mill, a collection system, each in fluid communication to provide a flow path, and a control system. The control system may include a controller operatively connected to at least one sensor to sense the amount of material, if any, along the flow path, and the speed, if any, of the material along the flow path. The control system, in response to signals received from the at least one sensor, may cause at least one of the hopper feeder, cutting mill, and collection system to increase the speed, decrease the speed, or stop the flow of material along at least a portion of the flow path. Methods of making and using the same are also described.

A system includes a platform having an upper surface and defining a recess having a floor, the recess configured to seat a dish, and a movable securing frame that is movably connected with the platform, the frame including a lift support having an upper surface that is movable along a path from a first location that is beneath the floor of the recess, through the recess, to a second location that is coplanar with the upper surface of the platform. A motor configured to cause oscillation of the platform and the movable securing frame can be used. A method of using the system can include placing a dish above a recess defined by an upper surface of a platform, and lowering the frame with respect to the platform, thereby seating the dish within the recess.

A system includes a platform having an upper surface and defining a recess having a floor, the recess configured to seat a dish, and a movable securing frame that is movably connected with the platform, the frame including a lift support having an upper surface that is movable along a path from a first location that is beneath the floor of the recess, through the recess, to a second location that is coplanar with the upper surface of the platform. A motor configured to cause oscillation of the platform and the movable securing frame can be used. A method of using the system can include placing a dish above a recess defined by an upper surface of a platform, and lowering the frame with respect to the platform, thereby seating the dish within the recess.

A tractor attachment for stump grinding has an attachment body, which has at least a shield opening, a hydraulic motor opening, and a pulley opening that are disposed through the tractor attachment. An attachment arm is coupled to the tractor attachment. A shield is removably mounted over a portion of the shield opening. A grinder with a grinder blade and a grinder pulley are mounted on an underside of the attachment body. A hydraulic motor with a hydraulic motor pulley is mounted through the hydraulic motor opening. At least one belt is rotatably disposed between the hydraulic motor pulley and the grinder pulley. The attachment arm is configured to be attached to a boom attachment on a tractor boom.

A tractor attachment for stump grinding has an attachment body, which has at least a shield opening, a hydraulic motor opening, and a pulley opening that are disposed through the tractor attachment. An attachment arm is coupled to the tractor attachment. A shield is removably mounted over a portion of the shield opening. A grinder with a grinder blade and a grinder pulley are mounted on an underside of the attachment body. A hydraulic motor with a hydraulic motor pulley is mounted through the hydraulic motor opening. At least one belt is rotatably disposed between the hydraulic motor pulley and the grinder pulley. The attachment arm is configured to be attached to a boom attachment on a tractor boom.

A restraint apparatus, a horizontal shaft crusher including the restraint apparatus and a method for controlling access to a crushing chamber of the horizontal shaft crusher. The first restraint has an operation mode and a service mode for respectively blocking and allows opening a service hatch for accessing the crushing chamber. A second restraint has an operation mode and a service mode for respectively not controlling the horizontal shaft and controlling the horizontal shaft. The first and second restraints are mutually exclusively usable in the operation mode so that the crushing chamber is not accessible through the service hatch unless the second restraint is controlling the horizontal shaft.

A safety system for a machine having a danger zone includes an induction coil having one or more turns extending along the periphery of a part of a worker's body as, for example, extending alone the fingers of a glove worn by the worker. A drive circuit applies a time-varying current having an identifiable characteristic such as the frequency of an alternating current. A magnetic field having the characteristic of the time-varying current is induced in an omnidirectional magnetic field sensor mounted adjacent the danger zone. The magnitude of this field is monitored. When the magnitude exceeds a threshold, a warning signal is issued and protective action may be taken, such as stopping or reversing the machine.

An adapter method and system includes a first side deflector, a second side deflector, and a top deflector coupled to the first side deflector and the second side deflector. The system may further include an internal deflector coupled to the first, second, and top deflectors. A first leg is coupled to the first side deflector and a second leg is coupled to the second side deflector. The legs are adjustable between a first position and a second position. The first, second, and top deflector define an entrance region for channeling wood-based debris into the chute of a woodchipper. Each side deflector may include a coupling mechanism for attaching to a woodchipper. Each coupling mechanism has an aperture. Each leg may telescope within a respective side deflector.

An adapter method and system includes a first side deflector, a second side deflector, and a top deflector coupled to the first side deflector and the second side deflector. The system may further include an internal deflector coupled to the first, second, and top deflectors. A first leg is coupled to the first side deflector and a second leg is coupled to the second side deflector. The legs are adjustable between a first position and a second position. The first, second, and top deflector define an entrance region for channeling wood-based debris into the chute of a woodchipper. Each side deflector may include a coupling mechanism for attaching to a woodchipper. Each coupling mechanism has an aperture. Each leg may telescope within a respective side deflector.

A paper shredder includes a housing, cutters positioned in the housing, and a feeder base adapted to support a stack of paper. The feeder base includes a feeder slot. The feeder base is integrally-formed as one piece having a front portion, a rear portion, and a sidewall along first and second sides and spanning the feeder slot.