1367results about "Gang saw mills" patented technology

Machines with safety systems are disclosed. The machine may take the form of woodworking machines including table saws, band saws, miter saws, hand-held circular saws, pneumatic chop saws, radial-arm saws, jointers, planars, routers and shapers. The machines may include an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and a safety system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool and for mitigating the unsafe condition. The safety system may include a detection subsystem and a reaction subsystem.

A saw is disclosed having a detection system adapted to detect a dangerous condition between a person and a saw blade, and a brake adapted to stop the saw blade in response to detection of the dangerous condition. The saw further includes a brake positioning system that allows the brake to be positioned in at least two different operable positions to accommodate at least two different blade diameters. The saw may include a system to detect brake-to-blade spacing.

A woodworking machine is disclosed having a base, a blade, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating and/or to stop movement of the blade toward the cutting zone.

A miter saw having a base and an arm that pivots toward the base is disclosed. A blade is supported by the arm, and is designed to cut workpieces resting on the base when the arm and blade pivot downward. The saw includes a detection system configured to detect one or more dangerous conditions between a person and the blade, such as when a person accidentally touches the spinning blade, and the saw includes a reaction system to stop the downward movement of the blade and arm when the dangerous condition is detected.

A quick-detachable blade guard mounting structure. The structure includes a mounting frame, a holding down member defining with one side of the mounting frame, a gap, a blade guard holder member insertable into the gap, a stop device adapted for stopping the blade guard holder member in the gap, a lever pivoted to the holding down member and adapted for moving between a first position to unlock the blade guard holder member and a second position to lock the blade guard holder member.

Cutting machines with high-speed safety systems, and actuators used in high-speed safety systems, are disclosed. The cutting machines may include a detection system adapted to detect a dangerous condition between a cutting tool and a person. A reaction system performs a specified action, such as stopping the cutting tool, upon detection of the dangerous condition. An actuator may be used to trigger the reaction system to perform the specified action.

A miter saw is disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating, to create an impulse against movement of the blade into the cutting zone, or to cause the blade to move away from the cutting zone.

A saw with a safety system is disclosed. The safety system includes a detection system adapted to detect contact between a person and a blade while the blade is moving. The safety system further includes a brake system adapted to engage the blade and to stop the blade when the detection system detects contact between the person and the blade.

An apparatus and method is provided for single transfer insert placement. The apparatus receives continuous web material and cuts a discrete section or pad from the web. The pad is then supported on a single transfer surface. The single transfer surface then may spin the supported pad to a desired angle and provide the pad to a receiving surface at a desired interval.

A device for mounting a cover of a cutting blade to a riving knife may have an engaging member for releasably engaging at least a part of the riving knife from both sides, in a direction of thickness of the riving knife. The engaging member is manually operable without any additional tools. A device for mounting a riving knife to a table saw may include a manually operable lock member and a biasing member. The biasing member is arranged and constructed to normally bias the lock member towards a lock position. The riving knife may be divided into a first knife portion and a second knife portion. A positioning device may position the first knife portion and the second knife portion substantially within a single plate.

A process for sub-dividing a laminated flooring substrate into a plurality of laminated flooring planks and a system therefore are described. The process can include providing a laminated flooring substrate having a decorative pattern on a core wherein the decorative pattern can include a plurality of indicators, and independently detecting the indicators with a plurality of detecting devices, each assigned a respective indicator. The detecting devices can individually obtain the position of the detected indicators and a control unit can align a separate saw blade per each position detected. The system includes a cutting unit with individually adjustable saws or an alignment device configured to align the laminated flooring substrate with the saws, to cut the laminated flooring substrate along positions relative to the detected indicators, for example, in the center thereof or off-set therefrom.

An electro-mechanical roll towel dispenser includes a housing with a roll carrier disposed therein to rotationally support a roll of towel material. An electro-mechanical feed mechanism is disposed in the housing to dispense measured sheets of the towel material. The feed mechanism operates in a first mechanical operational mode wherein the towel sheets are dispensed by a user grasping and pulling on a tail of the towel material extending from the housing, and a second electrical operational mode wherein a measured length of a next sheet is automatically and electrically fed out of the housing to define the tail for the next user.

A method of assembling a power tool, a power tool, a method of assembling an electrical device, and an electrical device includes a switched reluctance motor. The electrical device is preferably a hand-held power tool, however, any type of electrical device that includes a switched reluctance motor may benefit from any number of aspects of the invention. In one independent aspect, the invention provides a construction that reduces tolerance stack-up. In another independent aspect, the invention provides a self-contained electronics package that plugs into a switched reluctance motor to provide control operation of the switched reluctance motor. In another independent aspect, the invention provides enhanced cooling that increases the efficiency of the electrical device using a switched reluctance motor. In another independent aspect, the invention provides an encapsulated magnet that allows for contaminant free motor control over the life of the SR motor. In another independent aspect, the invention provides an apparatus and a method for aligning magnets of a magnet hub with respect to the rotor poles the magnet poles represent.

A reciprocating saw blade, for use in a portable power reciprocating saw including a chuck for releasably engaging the saw blade, includes a tang having an elongated axis and being engageable with the chuck for attaching the saw blade to the reciprocating saw. The saw further includes a blade portion having a cutting edge that defines a plurality of cutting teeth. The cutting teeth define a repeating pattern of successive groups of teeth. Each group of teeth is less than about a half inch in length, and includes a plurality of laterally offset teeth, at least one relatively high first tooth and at least one relatively low second tooth. Prior to tooth set, the at least one relatively high first tooth is at least about 0.002 inch higher than the at least one relatively low second tooth.

The quickly-detachable protective cover unit of a table sawing machine includes a protective cover, a non-return plate, a protective plate, a combining plate and an extending plate. The extending plate positioned at one side of the saw blade of a table sawing machine has its inner end fixed with a quickly-detachable handle unit for positioning the combining plate thereon. The protective plate is inserted through the saw blade and the combining plate, positioned on the table-sawing machine. The non-return plate and the protective cover are respectively provided with a quickly detachable device to fit in the positioning hole of the combining plate. The components of the quickly detachable protective cover unit are combined by quickly detachable mechanism so they can be disassembled or assembled quickly, needing no tool for carrying out disassembling work.

A dual bevel table saw provides a table saw enabled with a dual sided arbor assembly and a bi-directional bevel assembly. The dual sided arbor assembly coupled with the bevel assembly further provides for the positioning of a motor and a saw blade to allow for the full range of angular adjustment to be enabled without having to sacrifice any of the cutting features of the saw blade such as depth of cut. The dual bevel table saw may further include a companion saw assembly to provide increased functionality provided by the dual bevel table saw.

A food article feed apparatus for a food article slicing machine. The apparatus has conveyor with a drive belt for connecting a drive source to a drive roller, and a conveyor belt. The drive roller is for driving the conveyor. The drive roller has an outer diameter and a recessed diameter where the drive belt is connected around the recessed diameter and the conveyor belt is connected around the outer diameter. The drive belt operates within an area defined by the first conveyor belt.