An improved mini-trowel attachment assembly having a rotary stabilizer with a plurality of screw holes disposed therein with a plurality of replacement blades secured therein by a plurality of screw members. The plurality of replacement blades include at least a pair of elongated adjustable slots that allows the replacement blades to be adjusted inward of the outer peripheral edge of the rotary stabilizer. A free-wheeling self-lubricating bearing assembly having a first non-rotary bearing and spacer ring member attached to the rotary stabilizer and a second free-wheeling member attached to the first non-rotary bearing and spacer ring member that freely rotates when it engages wall structures and upstanding obstructions in concrete surfaces. Also, the elongated slots allows the replacement blades to be adjusted inward of the outer peripheral edge of the free-wheeling self-lubricating bearing assembly.

An improved mini-trowel attachment assembly having a rotary stabilizer with a plurality of screw holes disposed therein with a plurality of replacement blades secured therein by a plurality of screw members. The plurality of replacement blades include at least a pair of elongated adjustable slots that allows the replacement blades to be adjusted inward of the outer peripheral edge of the rotary stabilizer. A free-wheeling self-lubricating bearing assembly having a first non-rotary bearing and spacer ring member attached to the rotary stabilizer and a second free-wheeling member attached to the first non-rotary bearing and spacer ring member that freely rotates when it engages wall structures and upstanding obstructions in concrete surfaces. Also, the elongated slots allows the replacement blades to be adjusted inward of the outer peripheral edge of the free-wheeling self-lubricating bearing assembly.

The invention relates to a portable device (1) for amplifying an axial force applied to a tool, which includes: means (100) for linking the device to a user; means (2) for guiding the tool (4) it translation along a longitudinal axis (X); means for actuating the tool, including a drain (5) provided with a motor (6) and a rope (7) rigidly connected to the tool (4) and forming at least one turn (8) around the drum (5); and means for controlling the actuating means in order to apply a force to the tool in response to a force provided by the user via a control member. The means (100) for linking, tile device to the user and the means (2) for guiding the tool (4) in translation allow the tool (4) to rotate freely about the longitudinal axis (X) and about at least one axis (Z, Y) extending in a plane (P) which is normal to the longitudinal axis (X).

An asphalt rake includes a handle, a rake head, and a valve. The handle includes a cavity to hold a fluid, such as a release agent. The rake head has a passage in fluid communication with the outlet of the handle. The passage is in fluid connection with a support member outlet that is configured to be positioned apart from the crossbar by a gap. The valve controls fluid flowing from the cavity in the handle to the rake head. Fluid applied to tines of the rake head can prevent asphalt buildup on the rake head when smoothing or otherwise working with asphalt.

An asphalt rake includes a handle, a rake head, and a valve. The handle includes a cavity to hold a fluid, such as a release agent. The rake head has a passage in fluid communication with the outlet of the handle. The passage is in fluid connection with a support member outlet that is configured to be positioned apart from the crossbar by a gap. The valve controls fluid flowing from the cavity in the handle to the rake head. Fluid applied to tines of the rake head can prevent asphalt buildup on the rake head when smoothing or otherwise working with asphalt.

A bull float for leveling and finishing concrete made from two different materials is disclosed. In one embodiment, the main wooden base has an insert made from fiberglass. As the bull float is pushed forward, the pole is angled such that the wooden back edge levels and smooths the concrete, then on the return stroke the pole is raised such that the fiberglass front edge finishes the concrete as the bull float is swept back to the concrete worker. This bull float performs the tasks currently requiring three separate bull floats, thereby saving the worker from having to replace and clean two or three separate bull floats. As concrete sets up quickly, the time savings obtained through using just a single bull float results in superior concrete slabs with less effort required of the concrete worker and more time to work the concrete.

A concrete float body whose bottom (working) surface has a 3D shape/profile/contour over a nose region and a tail region of the float body. The nose region may be tapered across a width dimension of the float body. The tail region may be tapered across a width dimension of the float body. The nose and tail regions may have rounded corners. A perimetal edge of the float body may have a radius. The 3D surface may be produced by extruding, cutting from a solid material, die cast molding, or injection molding the float body wherein the bottom surface has a curvilinear shape along the width dimension, and monotonically decreasing a thickness dimension of the float body between the bottom surface and a top surface by removing material from the bottom surface.

A concrete float body whose bottom (working) surface has a 3D shape/profile/contour over a nose region and a tail region of the float body. The nose region may be tapered across a width dimension of the float body. The tail region may be tapered across a width dimension of the float body. The nose and tail regions may have rounded corners. A perimetal edge of the float body may have a radius. The 3D surface may be produced by extruding, cutting from a solid material, die cast molding, or injection molding the float body wherein the bottom surface has a curvilinear shape along the width dimension, and monotonically decreasing a thickness dimension of the float body between the bottom surface and a top surface by removing material from the bottom surface.

A hand held screed raking device having a longitudinally extending screed head, arced dozer front face, screed back, and tubular rake handle or rake grip handle. An underside shoe secures against the longitudinally extending screed head, connecting to a longitudinal bottom trailing surface, having a smooth, or textured bottom surface with repetitive or variable form and different forms of textured bottom surfaces. The textured bottom surface may dampen in amplitude, and be oriented with respect to application material applying direction. The user dozes pushing or pulling the device over a surface, loading application material along the arced dozer front face applying it on the surface.

A hand held screed raking device having a longitudinally extending screed head, arced dozer front face, screed back, and tubular rake handle or rake grip handle. An underside shoe secures against the longitudinally extending screed head, connecting to a longitudinal bottom trailing surface, having a smooth, or textured bottom surface with repetitive or variable form and different forms of textured bottom surfaces. The textured bottom surface may dampen in amplitude, and be oriented with respect to application material applying direction. The user dozes pushing or pulling the device over a surface, loading application material along the arced dozer front face applying it on the surface.