A milling machine for milling a surface of a roadway includes a frame and a milling assembly having a cutter drum that is mounted for rotation with respect to the frame. The cutter drum has a drive shaft on which a sheave is mounted. A primary drum drive assembly is adapted to rotate the cutter drum with respect to the frame. The primary drum drive assembly includes a drive belt that cooperates with the sheave on the drive shaft for the cutter drum to rotate the cutter drum. A belt lift assembly may be operated to selectively disengage the drive belt from the sheave of the drive shaft for the cutter drum.

An assembly for supporting the extended operation of mounted power hand tools is provided. The power tool extension apparatus extends between a baton-style handle and a depth-adjusting single wheel correlated to enable the operator to control the mounted power hand tool in a one-handed walk along manner. The alignment of the power tool extension apparatus, the mounted power tool, and the centrally disposed single wheel facilitates a wide range of selective pivotal motion of the single wheel and thus the mounted power tool about the extension apparatus.

An assembly for supporting the extended operation of mounted power hand tools is provided. The power tool extension apparatus extends between a baton-style handle and a depth-adjusting single wheel correlated to enable the operator to control the mounted power hand tool in a one-handed walk along manner. The alignment of the power tool extension apparatus, the mounted power tool, and the centrally disposed single wheel facilitates a wide range of selective pivotal motion of the single wheel and thus the mounted power tool about the extension apparatus.

A method for controlling a wall saw system during creation of a separation cut in a workpiece between a first and second end point, is disclosed. The separation cut is carried out in a plurality of main cuts. In addition to the main-cut sequence, an overcut sequence having at least two overcuts is defined for each end point defined as a free end point. For each overcut sequence, a starting position and an end position are defined, the overcuts being carried out therebetween. The wall saw is positioned in the starting position and is pivoted into a first overcut angle; subsequently, the saw head is moved by way of the inclined saw arm until the end position has been reached. The wall saw is displaced back into the starting position and pivoted into a second overcut angle. This sequence is repeated until all of the overcuts have been carried out.

A tool for positioning a block on a milling drum having a plurality of welded blocks thereon is provided. The tool includes a longitudinal body. The tool also includes a plurality of arm members extending from the longitudinal body. Each of the plurality of arm members includes a fixture body provided at a distal end thereof. The tool further includes a plurality of fixture assemblies coupled to the fixture body of the corresponding arm member. The plurality of fixture assemblies are adapted to be coupled with corresponding welded blocks of the plurality of welded blocks. Further, at least one of the plurality of arm members and the corresponding fixture assembly coupled to the at least one of the plurality of arm members are adapted to position the block at a desired position on the milling drum relative to the plurality of welded blocks.

A cart for carrying a cut-off saw having a saw blade. The cart includes a frame with upper and lower portions, a wheel arm pivotably coupled to the lower portion about a first axis, and a rear wheel assembly coaxial with the first axis and coupled to the frame and the wheel arm. The cart includes a front wheel coupled to an end of the wheel arm opposite the rear wheel assembly, an adjustment lever pivotably coupled to the upper portion about a second axis, and a link having a first end pivotably coupled to the adjustment lever and spaced from the second axis, and a second end pivotably coupled to the wheel arm between the first axis and the front wheel. Pivoting the adjustment lever about the second axis pivots the wheel arm about the first axis to adjust a vertical position of the front wheel relative to the upper portion.

A cart for carrying a cut-off saw having a saw blade. The cart includes a frame with upper and lower portions, a wheel arm pivotably coupled to the lower portion about a first axis, and a rear wheel assembly coaxial with the first axis and coupled to the frame and the wheel arm. The cart includes a front wheel coupled to an end of the wheel arm opposite the rear wheel assembly, an adjustment lever pivotably coupled to the upper portion about a second axis, and a link having a first end pivotably coupled to the adjustment lever and spaced from the second axis, and a second end pivotably coupled to the wheel arm between the first axis and the front wheel. Pivoting the adjustment lever about the second axis pivots the wheel arm about the first axis to adjust a vertical position of the front wheel relative to the upper portion.

A power tool includes a housing, a saw blade for cutting a workpiece, a motor for driving the saw blade to rotate about a first axis, a circuit board for controlling the motor, a heat sink for cooling, and a base plate being formed with a flat surface for contacting with the workpiece during cutting. The housing includes a first containing portion being formed with a first container for containing the motor, a second containing portion extended along a direction substantially parallel to the flat surface from one of the two ends of the first containing portion along a direction substantially perpendicular to the first axis. The second containing portion is formed with a second container which is communicated with the first container. The circuit board and the heat sink are disposed in the second container.

A power tool includes a housing, a saw blade for cutting a workpiece, a motor for driving the saw blade to rotate about a first axis, a circuit board for controlling the motor, a heat sink for cooling, and a base plate being formed with a flat surface for contacting with the workpiece during cutting. The housing includes a first containing portion being formed with a first container for containing the motor, a second containing portion extended along a direction substantially parallel to the flat surface from one of the two ends of the first containing portion along a direction substantially perpendicular to the first axis. The second containing portion is formed with a second container which is communicated with the first container. The circuit board and the heat sink are disposed in the second container.

A set square for manual ceramic cutters, including a ruler intended to be rotatably mounted and secured to a base of a manual ceramic cutter, defining various angles; a stop that is mounted on the ruler and can be moved longitudinally; and a tightening element for securing to the ruler. The cross-section of the ruler includes two oblique planes that converge towards an intermediate surface provided with a longitudinal recess having a generally T-shaped cross section, for mounting the tightening element. The lateral stop includes two oblique planes facing the ruler and having the same slope as the oblique planes of the ruler, and which converge towards an intermediate surface that has an opening to mount the tightening element.