Abstract: A stair step jig assembly for smoothing treads on concrete steps includes a jig that is elongated to a predetermined length to extend along a full length of a tread on a concrete step for smoothing the tread before the concrete has cured. A riser adjustment is hingedly coupled to the jig and the riser adjustment unit abuts a concrete form that is positioned against the riser of the step adjacent to the tread upon which the jig is positioned. A leg is hingedly coupled to the jig and the leg slidably engages the riser adjustment such that each of the leg, the riser adjustment and the jig forms a triangle. The leg has engages a top of the riser of the step adjacent to tread upon which the jig is positioned for keeping the jig at a fixed angle on the tread.

Abstract: A concrete tool for use in a transition area between garage or overhead doors includes an elongated main body extending between a first and an opposite second end, wherein the main body extends at a slope upwardly from the first end to the opposite second end. The concrete tool further includes a right angle portion extending upwardly from the first end of the elongated main body and then outwardly, the right angle portion comprising a first generally vertical portion extending generally upwardly from the elongated main body and a second generally horizontal portion extending outwardly from the first generally vertical portion. The concrete tool further includes a first handle mounted proximate the first end of the elongated main body and a second handle mounted proximate the second end of the elongated main body.

Abstract: A combined stair screed and float device for quickly and efficiently spreading and smoothing wet concrete comprising a generally shoe shaped member with a vertically and horizontally adjustable top guide and base bar to rest on riser forms. In operation, a user rests the top guide and the base bar on two riser forms with a pointed corner finder floating over the concrete at the desired corner position. The user grasps a grip portion and a handle and guides the device across the tread in a simultaneous screed and float step preparing a smooth surface for finishing. The device is both vertically and horizontally adjustable to accommodate a full range of conceivable step heights, tread lengths, toe kick overhang lengths, and corners.

Abstract: A manually operable and steerable curb extrusion device for extruding curb, barrier, wall, gutter or the like from concrete, cement or some other moldable building material. The curb extrusion device has a segmented vibrating hopper into which building materials are placed to fall onto a plurality of tapered counter rotating vibrating augers which compact and force the building material through an extrusion mold where it is shaped before extrusion; the number of augers adjustable and selected to provide the amount of building material required to be extruded.

Abstract: Provided is a floor construction apparatus that includes a guide unit that is disposed on surface of a floor to be constructed, and a flattening unit that is guided by the guide unit, to then be transferred to flatten the surface of the floor to be constructed, and to thereby reduce a construction time and expense for flattening of the construction surface of the floor.

Abstract: A longitudinal pavement joint for joining pavement lanes, the longitudinal pavement joint comprising: one or more joining surfaces having respective slope angles between about 0 and about 45 degrees; and optionally, one or more wall surfaces having respective slope angles between about 45 and about 90 degrees, the joining surfaces and the wall surfaces being disposed adjacent one another, and one or more of the joining surfaces comprising a respective joining surface feature.

Abstract: A hand-controlled, curb forming machine that is transformable between different widths and geometries, and between different wheel configurations, to accommodate different concrete curbing. A downwardly projecting, rotating head that rotates about an axis perpendicular to the slab shapes raw concrete into appropriately styled and contoured curbs. A machine frame slidably receives an adjustable, wheeled subframe. A roller on the opposite frame side rides on an opposite curb form. A pivoted handle is reversible. The electric motor is adjustably secured to the frame by a mounting plate movable within follower slots in the frame. A removable adaptor plate disposed on an opposite frame end supports the machine when not in use, but can be removed for normal curb work exposing a form riding roller. When the machine is deployed with monolithic curbs without rebar, the adaptor plate can mount to the subframe to raise the machine by lowering the wheels.

Abstract: A portable vibratory wet concrete screed includes a blade, an exciter that is selectively driven to induce vibrations in the blade, at least one operator-manipulated handle connected to the blade and extending upwardly and rearwardly, a laser receiver mounted on the screed at a height above an upper end of the handle, and an indicator that is operatively connected to the receiver. The indicator provides a visual indication of the screed height relative to a desired grade. It is located remote from the receiver at a location which, when viewed from the perspective of a person in the vicinity of a screed operator, is at least substantially in a focal area containing the rear edge of the blade.

Abstract: A linear lost motion mechanism is located within a tubular handle of a machine, such as a concrete finishing machine. The linear lost motion mechanism includes a pitch block configured to selectively frictionally lock with the tubular handle or a component attached to the tubular handle using a biasing spring. The linear lost motion mechanism can perform a number of functions, such as controlling a blade pitch adjustment system of a concrete finishing machine.

Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. The rotating cylinder may also be equipped with a constant velocity type U-joint to allow the rotating cylinder to flex and thus, allow for pours with crowns or valleys, as need by the cement installer.

Abstract: A motor-powered concrete finisher, having a motor and a rotatable circular disc powered by the motor are attached at the end of a counter-balanced extension pole. A handle may be provided at or near the balance point of the extension pole. The motor may be disposed on the rear end of the extension pole, to assist in counterbalancing the weight of the circular disc, hub, front end of the extension pole and other weight on the front end of the extension pole. An angled gear drive on the front end of the extension pole, driven by a shaft extending through the extension pole, has an attachment hub at its end for attachment of the circular disc. The motor may be an internal combustion engine. The concrete finisher may be a weed trimmer having the weed trimmer attachment replaced by a rotatable circular disc.

Abstract: An apparatus (10) for creating a sloped surface comprising at least one leveling member (12) and at least one guide member (36) for guiding the at least one leveling member (12). The at least one leveling member (12) changes the slope of the surface depending on a distance between a point of low elevation (54) to a point of higher elevation as the at least one leveling member (12) travels across the at least one guide member (36).

Abstract: A slipform sled for paving street curbs and gutters has a hopper and a curb and gutter mold. A pivoting mold assembly having a standard curb elevation mold and a driveway curb elevation mold is mounted on the slipform sled. The pivoting mold assembly pivots on a shaft oriented parallel to the direction of motion of the slipform sled. Paving material is flowed into the hopper and is extruded through the standard curb mold or the driveway curb mold while the sled is moving providing a smooth uniform finish. Only the relatively small transition section between the standard curb and driveway curb needs hand finishing. The elevation of a vibrator in the hopper is changed to correspond to the elevation of the curb extruded.

Abstract: A trowel for finishing the top of concrete stem walls around protruding anchor bolts has a finishing surface in the form of a blade or block attached to a handle. An opening in the form of a notch or a hole is provided in the blade or block for accommodating an anchor bolt. The trowel may be provided with means to position the anchor bolt vertically and horizontally in addition to finishing the concrete around the anchor bolt. The trowel may also have a curved side edge for rounding the concrete where it contacts the form.

Abstract: The surface finisher is an attachment for an angle grinder or other handheld prime mover that precludes the need to finish uncured concrete or other viscous, semi-fluid materials by hand. The surface finisher is a disk having a series of radially disposed blades extending from the plane of the disk, with the blades flexing over the surface to which they are applied to smooth the surface during operation. The disk and blades may be formed as a single, integral component, or may alternatively be formed as a flat, planar disk with a series of removable blades. Either embodiment may be formed of a variety of metal and/or plastic materials. The finishing blades bear against the surface and even out surface irregularities and put a slick, finished surface to the uncured surface, or may be used to form a pattern or texture in the uncured surface by using a contoured blade.

Abstract: An apparatus for applying a traffic stripe to a surface comprising a comb gate for permitting compound to be released from a tractive box through a comb for a contoured or profiled traffic stripe and a base gate for compound to be released for a standard or flat traffic stripe.

Abstract: A vibratory concrete screed includes a vibration isolation system that minimizes the transmission of vibrations to the operator under normal operating conditions, but becomes more rigid during screed control forces applied to the blade through the isolation system when the operator applies greater forces to the operator handle. The system includes low durometer elastomer vibration isolators isolating the operator handle from the vibration exciter and screed blade in a manner that limits vertical compressive movement of the isolators, yet permits substantially greater horizontal shear movement to effectively isolate the operator from vibration. The isolator mounting arrangement also includes retainers that engage the isolator to limit the amplitude of horizontal shear movement when the operator applies a greater control force to the operator handle.

Abstract: A device for receiving and pushing hardenable material through a channel defined by a mold of the device to form a curb having an outer surface, and an attached steering assembly consisting of a steering arm coupling wheel supports attached to the device, and adjustment assembly associated with the steering arm and the device for defining different turning radiuses of the wheel supports.

Abstract: A concrete float adjusting device is disclosed which enables a user to adjust the angle of a float coupled to the adjusting device so that the float does not gouge into the unset surface of freshly poured concrete. The adjusting device includes a base coupled to the float, and a shaft rotatable in a pivot bearing pivotally coupled to the base. The shaft is formed with a pair of spiral slots which define a path of travel for a pair of upper pivot shafts projecting into the slots and guiding a protective sleeve and an integral follower sleeve together for sliding movement on the shaft. A pair of shiftable link arms extend between the upper pivot shafts and a pair of lower pivot shafts pivotally coupling the base to the link arms. Rotation of the shaft causes linear sliding movement of the protective sleeve and follower sleeve along the shaft. This motion is transmitted by the shifting link arms to the base so as to change the angle of the float relative to the shaft.

Abstract: This invention relates to a vibrating screed for compacting and smoothing flowable cementitious materials. More specifically, this invention relates to a self-contained hydraulic powered concrete screed. This hydraulic screed consists of a relatively lightweight screed unit having a hydraulic powered vibrator and a portable hydraulic power pack that is mounted on a back pack wearable by the operator. The handle of the screed unit is isolated from the hydraulic vibrator and screed blade by three rubber isolation mounts. The working height of the handle can be adjusted by a turnbuckle assembly at one of the rubber mounts, causing the handle to pivot about the other two the rubber mounts. The hydraulic power pack comprises an internal combustion engine driving a hydraulic pump that provides pressurized hydraulic fluid to the vibrator unit via flexible hoses.

Abstract: The combination of a hand held mounting mechanism having an elongated tubular member containing a rotating shaft, where the elongated tubular member includes a cone-shaped bracket at a free end thereof, and a concrete slumping implement. Several embodiments are disclosed, where in each the implement comprises a concrete contacting plate, either flat and/or sectional, or contoured, an upstanding wall extending therefrom, and an L-shaped bracket for mounting to the cone-shaped bracket. Additionally, the rotating shaft may mount an eccentric wheel for imparting a vibrating or cyclic action to the concrete slumping implement.

Abstract: A concrete finishing tool includes a float and texturing brush installed upon the distal end of an elongate handle. The float and handle connection may include a mechanism for adjusting the plane of the float relative to the handle axis, if desired. A pair of brackets extends from the upper surface of the float, with a texturing broom or brush adjustably secured to the distal ends of the brackets. The brackets allow the broom to be adjusted linearly and/or angularly relative to the plane of the float, to provide a bristle rake angle and/or penetration depth as desired. The finishing tool, with its adjustable texturing broom, allows a concrete worker to begin texturing a freshly poured concrete surface as it is being smoothed, with the worker adjusting the broom for a consistent finish texture as the concrete changes its viscosity during the curing process.

Abstract: A concrete smoothing device including a plate portion having an upper surface and a lower surface. The lower surface is planar for positioning on freshly poured concrete. The upper surface has a reinforcement brace secured centrally thereon. A swivel bracket is secured to the reinforcement brace of the upper surface of the plate portion. The swivel bracket includes a cylindrical post extending upwardly from the reinforcement brace. The cylindrical post has a collar rotatably disposed thereon. The collar has a pair of arms extending laterally therefrom. The pair of arms has a space disposed therebetween. An elongated handle is provided having an upper end and a lower end. The lower end has an end cap secured thereto. The end cap has a tab extending outwardly therefrom. The tab is positioned within the space between the pair of arms of the swivel bracket and pivotally secured thereto by a pivot pin.

Abstract: A device that allows a user to spread and level concrete in a standing position includes a beam formed of a pair of beam segments, each having an inboard end that may be removably joined to the inboard end of the opposing beam member at select locations to vary the length of the beam. Pivotally mounted to the outboard end of each beam segment is a handle assembly. The handle assembly is pivotable between a plurality of angular positions allowing the beam to be manipulated within confined spaces and whereby the beam may also be used in an inverted position. A first beam segment includes an eye bolt for coupling with an external towing device to assist a user in pulling the beam across a heavy layer of concrete.

Abstract: A concrete smoothing device including a plate portion having an upper surface and a lower surface. The lower surface is planar for positioning on freshly poured concrete. The upper surface has a reinforcement brace secured centrally thereon. A swivel bracket is secured to the reinforcement brace of the upper surface of the plate portion. The swivel bracket includes a cylindrical post extending upwardly from the reinforcement brace. The cylindrical post has a collar rotatably disposed thereon. The collar has a pair of arms extending laterally therefrom. The pair of arms has a space disposed therebetween. An elongated handle is provided having an upper end and a lower end. The lower end has an end cap secured thereto. The end cap has a tab extending outwardly therefrom. The tab is positioned within the space between the pair of arms of the swivel bracket and pivotally secured thereto by a pivot pin.

Abstract: A concrete finishing tool comprising an elongated handle in a cylindrical configuration having an upper portion and a lower portion and an intermediate portion there between, the upper portion having a lower end and an upper end with the upper portion containing a battery, the lower portion having a lower end with a horizontal aperture there through and an upper end, the intermediate portion having a lower end and an upper end with the intermediate portion containing a switch with a receiver adjacent to its upper end and an axially reciprocating vibrator adjacent to its lower end and with a motor there between; and a cross piece with lateral ends and with a planar lower surface adapted to finish concrete and an upper surface with a central bracket formed with a horizontal aperture there through and with a pin pivotally coupling the bracket to the lower end of the handle, the upper surface also including a pair of vibrators adjacent to the lateral ends thereof.

Abstract: An inlaid brick walkway bed leveler consisting of a handle affixed to a rakehead with the handle being supported by a pair of equivalent mediolateral struts attached to the handle and the rakehead, a brace serving to support the struts, a straight bottom edge of the rakehead, the lateral aspects of the front face of the rakehead being amenable to receipt of snugly fitting, adjustable width gauge components with chair shaped ends each amenable to receipt of a clip component and to each of which width gauge components there is affixed a pair of threaded posts extending through elongated slits in the rakehead with an anteroposterior through hole medially positioned in the rakehead near the topside thereof and with there being affixed to the top side thereof just above the anteroposterior hole, an encased leveling bubble component.

Abstract: A vibrating screed is provided which permits selective adjustment of the angle between the axis of a rotatable eccentric and the plane defined by the bottom of the screed plate to vary the relative vertical compaction and horizontal smoothing oscillation movement imparted by the eccentric. The screed includes a frame, motor, an eccentric driven by the motor, a screed plate, and a pair of locking hinges which releasably connect the frame to the screed plate at one of a multiplicity of possible angular relationships therebetween. The screed plate includes a tension adjustment to facilitate leveling of the screed and the weight of the eccentric is positioned between two spaced-apart bearings for enhanced support and for enabling the axis of rotation of the eccentric to be varied relative to the screed plate.

Abstract: A manual screeding system for use in leveling freshly poured concrete which includes a frame for providing structural integrity to the screed. The screeding system includes handles, attached to the frame, for manually holding and manipulating the screeding system during the screeding process. A support, attached to the frame, is provided for preventing the screeding system from rotating about the handles during the screeding process. The support is structured to engage the forearms of the user when the screeding system is in use. A pair of bracket assemblies are provided for securely holding a screed board to the frame.

Abstract: A concrete finishing device for steps including a trowel blade and an adjustable gauge coupled with respect to the trowel blade. The adjustable gauge can be adjusted to correspond with the width of a form riser on concrete steps to allow the concrete poured beneath the form riser to be properly finish the steps.

Abstract: An adjustable, combination floor tile mortar and grout spreading device for applying bonding material at a predetermined thickness in a straight-combed manner, and for spreading grout between floor tiles. The device comprises a telescopically adjustable rectangular frame having a leading edge and a trailing edge and a pair of downwardly extending sides for containing bonding material. The rectangular frame is telescopically adjustable to various widths and can be fixed at a particular width depending upon the size tile for the given installation. In the mortar spreading configuration, the trailing edge incorporates a resiliently mounted downwardly extending trowel blade having a conventional trowel blade edge with either a saw-tooth or square-toothed shape. The trowel blade is adjustable such that the device may be used for spreading various thicknesses of bonding material.

Abstract: A powered concrete screed apparatus comprising a roller rotatably attached to a chassis. The chassis includes an elongated member that extends in spaced, parallel relation to the roller, and is of substantially the same length as the roller. The elongated member is attached to the roller at one end by a motor removably mounted thereto and which includes gears extending therefrom which are operatively attached to the roller, and at its opposite end by a plate which extends between the tubing and roller. A pair of handles are mounted to and extend upwardly from the tubular member, and are independently, slidably adjustable along the length of the tubular member. The handles are also telescopically adjustable, thereby permitting their lengths to be selectively controlled. A throttle is removably attached to one of the handles and electrically connected to the motor, thereby permitting selective control of the power output from the motor.

Abstract: A device for spreading cold-coat tar for securing roofing paper, comprising a hard rubber blade with serration, which, when pushed over the surface to be roofed, spreads the desired coat of tar over a predetermined width of the surface to be roofed.

Abstract: A bull float for working and finishing concrete and the like is provided. The bull float includes a blade. The blade has a first working surface for contacting the work to be troweled. The first working surface has a leading edge and a trailing edge. The blade also has a leading edge member disposed at the leading edge and carries a second working surface disposed at an angle to the first working surface. The blade further includes a trailing edge member disposed at the trailing edge and carries a third working surface disposed at an angle to the first working surface. The bull float includes a planar metal sheet having a front edge and a rear edge, and having its mid area bowed outwardly relative to the working surface. The front and rear edge of the sheet are secured at points fixed with respect to the leading edge and the trailing edge.

Abstract: A concrete grading tool for grading, leveling and sealing wet concrete is shown and described. The grading tool is comprised of a grading head which is made of a lightweight material such as aluminum and has a long handle extending outward therefrom. The grading head of the present invention is designed such that it floats on top of the wet concrete. It has a triangular design and is substantially hollow therethrough. All three sides are kept at a minimal thickness. On the rearward facing surface is located an attachment block which threadably receives the handle. The handle has a first and a second support member angled downward and also attached to the grading head for additional support of the handle away from the centermost portion. The grading tool allows the user to rake, level, screed and place a precise finish on wet concrete.

Abstract: An adjustable cement finishing tool including a generally planar float; a rigid mounting bracket coupled to an upper extent of the float; a swiveling member pivotally coupled to the mounting bracket; and a generally elongated arm with a central axis coupled to the swiveling member, and wherein rotating the arm in one direction about its central axis allows it to become engaged with the swiveling member to thereby preclude pivotal movement of the float, and wherein rotating the arm in an opposite direction about its central axis allows it to become disengaged from the swivelling member and thereby allow pivotal movement of the float.

Abstract: A hand-held screed for use in making a sidewalk includes a rectangular plate. The plate has a bottom edge suitable for subgrading and for levelling concrete, and a top edge opposite the bottom edge. At either end of the plate, a projection extends beyond the top edge. A handle is affixed to one of the major surfaces of the plate and is braced by a pair of struts. The plate has a width, as measured between the top and bottom edges, equal to the intended depth of the sidewalk. The plate further has a length equal to the intended width of the sidewalk. A form is erected and the area within the form is subgraded using the bottom edge of the plate. The plate is oriented with its length dimension running widthwise of the form. When the top edge of the plate is flush with the top edges of the form, the depth of the area within the form equals the intended depth of the sidewalk. Concrete is now poured into the form and the wet concrete is subsequently levelled using the bottom edge of the plate.

Abstract: An apparatus and methodology for smoothing relatively small pads of freshly laid concrete. The apparatus comprises a pair of broom assemblies joined by a gang bar structure and each pivotally movable on the gang bar structure between first and second angularly displaced positions. A first rope is connected to the apparatus and moves the apparatus across the pad in one direction in response to pulling on the first rope, and a second rope is connected to the apparatus and moves the apparatus across the pad in an opposite direction in response to pulling on the second rope.

Abstract: An apparatus and methodology for smoothing relatively small pads of freshly laid concrete. In one embodiment the smoothing apparatus comprises a pair of broom assemblies joined by a gang bar structure and each pivotally movable on the gang bar structure between first and second angularly displaced positions. With the broom assemblies in their first angular positions, the smoothing apparatus is moved in one direction across a first section of the pad by a first worker pulling on a first rope and a second worker commensurately letting out a second rope, whereafter the smoothing apparatus may be moved laterally on the pad to overlie a second section of the pad laterally adjacent the first pad section and the smoothing apparatus may be moved in the opposite direction across the second section of the pad with the broom assemblies in their second angular positions, the second worker pulling on the second rope, and the first worker commensurately letting out the first rope.

Abstract: An improved cement finishing hand tool having a handle member with a gripper shaft, a proximal end and a distal end, the distal end being substantially downwardly angled so as to be removably engaged with an upper surface of a removable blade member. The removable blade member is interchangeably secured to the handle member which is structured to independently vibrate resulting in the translation of the vibration from the handle member through the blade member. This vibration facilitates the production of a corresponding desired finish as the lower surface of the blade member is passed over wet cement during the initial and final stage finishing procedures.

Abstract: A concrete screed which includes an elongated rail and a detachable shoe with a screeding surface. The shoe reversibly snap fits or slides onto the rail, and may be replaced when the screeding surface becomes worn. The rail includes hand grips for hand operation, and a hole in which a handle, pole, or hook may be inserted for pulling or pushing the screed. Screed rail supports may be attached to the elongated rail to allow the screed to be pulled over screed rails while screeding.

Abstract: An attachment for a screed bar which is used to level concrete in concrete forms wherein the screed bar is operated by two individuals who place the bar on the concrete forms and then move it back and forth along the forms to level the concrete after it has been freshly poured into the forms, the attachment comprising an inverted U-shaped member attached adjacent each end of the screed bar, each member having a pair of parallel plates extending outwardly and upwardly therefrom at an angle of about 70.degree. with respect to the vertical, a handle pivotally connected between each pair of parallel plates and extending outwardly and pivotally from each member, whereby the individuals can grasp the handles and move the screed bar over the forms and the concrete therein without having to stoop over.

Abstract: An improved flatwork concrete finishing apparatus includes a side-by-side pair of parallel spaced elongate brush assemblies, each brush assembly having an elongate head with a pair of upper corners or stops, a downwardly directed throat with opposing inwardly directed grooves, and a plurality of replaceable elongate blocks, each having at least one row of color-coded bristles with a stiffness different than the bristles of at least one of the other blocks. Each of the blocks have outwardly directed ridges adapted to be slidably received by the grooves. A plurality of corresponding pairs of brackets attached to each of the pair of brush assemblies are interconnected by a plurality of spacers pivotally connected thereto.

Abstract: An improved float, of the category of a bull float or a hand float, incorporating a body portion, and which cooperates with a reinforcing brace, which when fastened or locked into position upon the upper surface of the float, resist against twisting, bending, or warpage to the float, as a result of the sustained usage, or exposure to the extreme elements; various types of handles may be applied to the float, through the usage of a tee slot formed upon the plate portion of the float, and handles of various sizes may be accommodated upon the float, and in particular the hand float, through the alignment of selected apertures along the length of the float for accommodating fasteners for securement of the selected length of handle to the float in preparation for its usage.

Abstract: A device for connecting an elongated handle to a bull float plate having a hollow body formed from four opposed walls, a bracket pivotally connected to the body for attaching the body to the top side of a bull float, a rotatable connector to removably attach an elongated handle on the body opposite the bracket, and a bevel gear assembly within the body cooperatively connecting the connector and bracket and disposed to translate the rotational movement of the handle connector into pivotable movement of the bracket thereby effecting the slight pivotal movement of the bull float and its plate.

Abstract: A handle attached to a spreader blade housing. The housing supports a spreader blade which spreads the adhesive over a desired surface. The angle of the handle is preferably adjustable relative to the housing. Weights are added to the housing to apply a downward force to the spreader blade, so that a downward force need not be applied through the handle by an operator. The weights are preferably removable, allowing the weight applied to the spreader blade to be adjusted to compensate for different viscosities of adhesive and different application speeds.

Abstract: A concrete striking equipment presented in the form of a framework mounted on a longitudinal bar operating in a vibratory relationship in a horizontal plane because of an off-center rotating weight defining a part of the powering means. While basically developed for striking concrete, the invention's field of utility extends to the leveling and/or grading of earth and rock.

Abstract: An improvement to power trowels having a power unit, a rotatable shaft, a plurality of trowling blades mounted to spider arms, and a shroud for shielding the blades. The blades are formed of spring steel and are fixedly mounted to the spider arms. A throttle control unit is removably mounted to the trowel and may be extendably mounted to an adjustable extendible pole.

Abstract: A manually operated trowel is used for finishing wet concrete. The float portion is a rectangular plate-like structure with a handle mounted to its top center region. The handle may consist of several extensions. The base of the float has three distinct regions that extend along the length of the float. The front and rear regions are of a smooth texture while the center region, extending between the front and rear regions, has laterally extending teeth-like V-grooves. The grooves extend below the smooth surfaces of the forward and rearward regions.

Abstract: An improved float, of the category of a bull float or a hand float, incorporating a body portion, and which cooperates with a reinforcing brace, which when fastened or locked into position upon the upper surface of the float, resist against twisting, bending, or warpage to the float, as a result of the sustained usage, or exposure to the extreme elements; various types of handles may be applied to the float, through the usage of a tee slot formed upon the plate portion of the float, and handles of various sizes may be accommodated upon the float, and in particular the hand float, through the alignment of selected apertures along the length of the float for accommodating fasteners for securement of the selected length of handle to the float in preparation for its usage.