Circular saw blade guide pads, circular saw guide assemblies including the guide pads, circular saws including the guide assemblies, methods of manufacturing the guide pads, and methods of utilizing the circular saws. The guide pads include a pad body that includes a pad material. The pad material includes a first plurality of small graphite particles, a second plurality of large graphite particles, and at least one additional component that includes a cured resin material. The guide assemblies include a guide arm and a guide pad operatively attached to the guide arm. The circular saws include at least one circular saw blade that defines a first blade side and an opposed second blade side, a first guide assembly positioned on the first blade side, and a second guide assembly positioned on the second blade side. The methods include methods of operating the circular saws and/or manufacturing the guide pads.

A portable sawmill which has an elongate central portion, at least one hinged foldable extension portion, laminated rails, detachable axle/wheel combinations, a tow bar, and adjustable legs. Spacers are received between each rail and the respective support structure for both the central portion and the extension portion, including one spacer a first portion of which is disposed between and attached to each rail and support structure of one of the central portion and the extension portion and a second portion of which is slidingly receivable between each rail and support structure of the other of the central portion and the extension portion as the extension is unfolded for use. A pull cable, when an actuation lever is engaged, effects pivotal movement of a cam to which another pull cable is attached for actuating the engine throttle for cutting wood. At least one other pull cable or other actuation member is attached to the cam to actuate at least one other device upon the actuation of the throttle.

A portable sawmill which has an elongate central portion, at least one hinged foldable extension portion, laminated rails, detachable axle/wheel combinations, a tow bar, and adjustable legs. Spacers are received between each rail and the respective support structure for both the central portion and the extension portion, including one spacer a first portion of which is disposed between and attached to each rail and support structure of one of the central portion and the extension portion and a second portion of which is slidingly receivable between each rail and support structure of the other of the central portion and the extension portion as the extension is unfolded for use. A pull cable, when an actuation lever is engaged, effects pivotal movement of a cam to which another pull cable is attached for actuating the engine throttle for cutting wood. At least one other pull cable or other actuation member is attached to the cam to actuate at least one other device upon the actuation of the throttle.

A portable sawmill has an elongate central portion, at least one hinged foldable extension portion, laminated rails, and a tow bar. An elongate tubular axle retaining member is mounted to the base. A pair of torsion axles, to which wheels and tires are attached, are received telescopically in opposite ends respectively of the axle retaining member and detachably attached thereto. A plurality of legs are attached to the base. The legs are height-adjustable to raise the base to a height such that the tires are raised above the ground so that the axles with the attached wheels may be removed.

A portable sawmill has an elongate central portion, at least one hinged foldable extension portion, laminated rails, and a tow bar. An elongate tubular axle retaining member is mounted to the base. A pair of torsion axles, to which wheels and tires are attached, are received telescopically in opposite ends respectively of the axle retaining member and detachably attached thereto. A plurality of legs are attached to the base. The legs are height-adjustable to raise the base to a height such that the tires are raised above the ground so that the axles with the attached wheels may be removed.

A cutting fluid delivery controller for a sawmill, and methods and systems for controlling delivery of cutting fluid to a saw blade in a sawmill. The saw blade is driven by a motor. The speed of the motor is regulated by a throttle lever having an idle speed position and a cutting speed position. The cutting fluid delivery controller includes a fluid valve configured to automatically turn on a flow of cutting fluid to the saw blade when the throttle lever is set to the cutting speed position, and to automatically turn off the flow of the cutting fluid when the throttle lever is set to the idle speed position. The cutting fluid delivery controller interconnects the fluid valve and the throttle lever to allow the operator to simultaneously control operation of the saw blade, and the flow of the cutting fluid to the saw blade, with a single operator manipulable actuator.

A cutting fluid delivery controller for a sawmill, and methods and systems for controlling delivery of cutting fluid to a saw blade in a sawmill. The saw blade is driven by a motor. The speed of the motor is regulated by a throttle lever having an idle speed position and a cutting speed position. The cutting fluid delivery controller includes a fluid valve configured to automatically turn on a flow of cutting fluid to the saw blade when the throttle lever is set to the cutting speed position, and to automatically turn off the flow of the cutting fluid when the throttle lever is set to the idle speed position. The cutting fluid delivery controller interconnects the fluid valve and the throttle lever to allow the operator to simultaneously control operation of the saw blade, and the flow of the cutting fluid to the saw blade, with a single operator manipulable actuator.

A method for constructing a lower section of a sawmill carriage assembly comprises holding structural components between a pair of metal plates, and affixing the plates and the structural components together. The structural components may include wheels that guide the sawhead in linear movement along a track on a sawmill bed, to which the carriage base is attached. The structural components may also include a track cleaning system disposed between the metal plates. The track cleaning system maintains optimal track conditions.

A method for constructing a lower section of a sawmill carriage assembly comprises holding structural components between a pair of metal plates, and affixing the plates and the structural components together. The structural components may include wheels that guide the sawhead in linear movement along a track on a sawmill bed, to which the carriage base is attached. The structural components may also include a track cleaning system disposed between the metal plates. The track cleaning system maintains optimal track conditions.

A cutting fluid delivery controller for a sawmill, and methods and systems for controlling delivery of cutting fluid to a saw blade in a sawmill. The saw blade is driven by a motor. The speed of the motor is regulated by a throttle lever having an idle speed position and a cutting speed position. The cutting fluid delivery controller includes a fluid valve configured to automatically turn on a flow of cutting fluid to the saw blade when the throttle lever is set to the cutting speed position, and to automatically turn off the flow of the cutting fluid when the throttle lever is set to the idle speed position. The cutting fluid delivery controller interconnects the fluid valve and the throttle lever to allow the operator to simultaneously control operation of the saw blade, and the flow of the cutting fluid to the saw blade, with a single operator manipulable actuator.