Abstract: A system for moving material from a first work area to a second work includes a material moving machine, a machine position sensor and a controller system. The controller system performs first material moving operations including determining a transition location from an inclined material stack operation to a flat material stack operation. The controller system performs second material moving operations including controlling the material moving machine.

Abstract: In an automotive milling machine, comprising a machine frame, comprising a controller for the travelling and milling operation, comprising a working drum, comprising a transport conveyor for discharging the milled material milled off by the working drum onto a loading surface of a transport vehicle comprising a rear wall, where the transport conveyor is slewable, relative to the machine frame, about a first axis extending essentially horizontally under an elevation angle, and sideways about a second axis extending orthogonally to the first axis under a slewing angle, it is provided for the following features to be achieved: a detection device is arranged on the bottom side of the transport conveyor, where said detection device is used to initiate an activation signal in case of the transport conveyor approaching an object, in particular, the rear wall of the loading surface.

Abstract: A powered tile breaker has an adjustable frame and the frame is further comprised of a handlebar member, a foldable shaft, a base member, and wheels. The base member holds a chiseling assembly which comprises a main electric motor located inside a motor casing. The motor powers a chisel member. The chiseling assembly is angularly adjustable by way of an actuator member which consists in a secondary electric motor driving a piston. The piston has one end rotationally connected to the base member, and the actuator member is rotationally connected to a lever member which extends from the chiseling assembly and which connects at a pivot point.

Abstract: An attachment configured to be captured and lifted by a bucket of a vehicle includes a back end proximate the bucket, in operation; a left side; a right side; a front end distal from the bucket, the front end defining a bottom surface; connection means for receiving a forward edge of the bucket, wherein the bucket can engage and lift the attachment; and means defining a material handling area between the left side, right side, front end, and back end, the material handling area including apertures for sifting, wherein material rolls up into the material handling area when the attachment moves forward so that material can be sifted in the sifting area.

Abstract: Texture curing machine for the subsequent treatment of freshly produced concrete layers, in particular concrete pavements, of a specified width, comprising a machine frame supported by ground-engaging units, where working devices are attached at the machine frame in a stationary fashion or movable transverse to the working direction, and the working devices comprise texturing devices for applying a texture into the not yet hardened surface of the concrete layer and/or spraying devices for discharging a curing agent, said working devices acting on the concrete layer in longitudinal direction or in transverse direction to the working direction, it is provided for the following features to be achieved: that the working devices for applying either a texture or a curing agent comprise both a working device acting in longitudinal direction and stationary in operation and a working device movable to and fro across the width of the concrete layer, where each is alternately transferable from a resting position into an

Abstract: A cold planer includes a frame and a cutting mechanism having a rotatable cutter configured to cut material of a substrate. An anti-slabbing mechanism is coupled to the frame and includes an upwardly oriented base plate, and a plurality of skids. The skids are arranged in a first subset and a second subset positioned upon opposite outboard sides of a forwardly projecting plow, and downwardly depend from a base plate of the anti-slabbing mechanism, for applying a slabbing opposition force to uncut material of the substrate.

Abstract: The Road CRAB is road construction equipment used to remove road reflectors. This machine includes a manually operated blade that moves up and down, two hitches, one off set to the driver's side, and one that raises the front to wheels off the ground. It does not have a motor and is towed with a standard ball hitch on any work truck. When in use it has all four wheels on the ground with an operator (person) raising and lowering the blade with a handle. When being towed to and from job sites the travel hitch raises the front two wheels off the ground so it is easily towed on the back two wheels.

Abstract: A track scraper for removing rubber from a racetrack is provided. The scraper comprises rotating blades that are moved along the surface of the track and that skim off portions of rubber that has been deposited on the track by race cars. The scraper is installed on and powered by a standard garden tractor.

Abstract: A machine for milling a surface of a roadway is provided. The machine includes a frame and an operator station arranged on the frame. A canopy assembly including a canopy and a support assembly is provided. The support assembly supports the canopy on a portion of the frame forward of the operator station such that canopy is movable between a raised position and a lowered position. The canopy and the support assembly are configured such that in the raised position the canopy extends over at least a portion of the operator station and in the lowered position the canopy is arranged in a substantially flat orientation relative to and adjacent an upper surface of a portion of the frame forward of the operator station.

Abstract: A road grading pick includes a cutting head, a shank, a shoulder at a transition between the cutting head and the shank, and a polygonal-shaped washer or an oval-shaped washer. The shank is positioned in an opening of the washer to position the washer along a longitudinal length of the shank between a rearward end of the shank and the rearward facing surface of the shoulder. In a preinstalled position, the washer compresses a friction retainer on the shank of the road grading pick to facilitate seating of the road grading pick in a blade of a road grading apparatus. In an installed position on an adapter board for a moldboard of road grading equipment, the friction retainer is no longer in the opening of the washer and the washer prevents washer rotation and shields an underlying mounting surface while allowing rotation of the road grading pick.

Abstract: A milling attachment device has a rotating hood and provides both cutting depth control and bit access by rotating the rotating hood. The rotating hood is rotated by an actuating mechanism such as an extending cylinder, a slew drive, or drive rings. The rotating hood may also have a skid foot and/or a wheel to assist in the depth control. The milling attachment device may be connected to a host vehicle so that it can be maneuvered into position for milling or maintenance.

Abstract: An apparatus is provided for removing at least one surface layer from a floor. The apparatus includes a body frame mountable by a machine operator. A blade tool assembly having a scraping blade is secured to the front of the main body frame by a blade holder. The blade tool may be replaced by a detachable transport wheel for moving the machine when not in use for removing floor covering. The blade holder is manipulated by attaching a hydraulic cylinder ram to the bottom side of the blade holder. The hydraulic cylinder is attached to a rear bracket attached below the body of the machine, whereby the hydraulics system for controlling the blade holder is protected. The angles and pivotal connections of the hydraulic cylinder to the blade holder permit sufficient power to operate the blade holder using an auxiliary hydraulic pump.

Abstract: A spraying device for introducing a fluid into the working chamber of a construction machine for processing ground or road surfaces comprises at least one outlet nozzle by means of which the fluid is introduced into the working chamber, a line system by means of which the fluid is conveyed to the at least one outlet nozzle, and a control unit by means of which the fluid supply to the outlet nozzle is controllable. The present invention further relates to a construction machine for processing ground or road surfaces, especially a milling machine for milling off road or ground surfaces, a stabilizer for stabilizing ground of low bearing capacity and a recycler for repairing pavements in need of repair, comprising such a spraying device, and a method for operating a working device of such a construction machine.

Abstract: A method of mining ore in a mine pit (3) and a mine are disclosed. The method comprises mining ore from a floor (5) of a mine pit and/or collecting ore on the floor using at least one mobile excavation machine (11) and transporting ore within the mine pit on at least one mobile flexible conveyor (13). The method also comprises transporting ore that has been transported along the flexible conveyor from within the pit to outside the pit on at least one ladder conveyor (23) that extends up the wall of the pit.

Abstract: A road grading pick includes a cutting head, a shank, a shoulder at a transition between the cutting head and the shank, and a polygonal-shaped washer or an oval-shaped washer. The shank is positioned in an opening of the washer to position the washer along a longitudinal length of the shank between a rearward end of the shank and the rearward facing surface of the shoulder. In a preinstalled position, the washer compresses a friction retainer on the shank of the road grading pick to facilitate seating of the road grading pick in a blade of a road grading apparatus. In an installed position on an adapter board for a moldboard of road grading equipment, the friction retainer is no longer in the opening of the washer and the washer prevents washer rotation and shields an underlying mounting surface while allowing rotation of the road grading pick.

Abstract: In a method for milling an opencast mining surface or for milling off layers of an asphalt or concrete traffic surface with a milling machine removing the ground surface, by milling the ground surface along a predetermined milling track having a predetermined length, by transporting the milled material via a conveying device to at least one container of a truck that travels along next to the milling machine, said truck having a predetermined maximum loading volume per load, and by replacing a fully loaded truck with an unloaded truck when the maximum loading volume of a truck load has been reached, it is provided for the following features to be achieved: calculation of the maximum total loading volume resulting over the length of the current milling track as a function of the current effective working width and a milling depth that has been optimized in relation to a predetermined, preferably maximum milling power, calculation of the number of truck loads required for the maximum total loading volume of a mi

Abstract: A construction machine for the treatment of ground surfaces includes a chassis carrying a machine frame, a driveable work drum supported from the machine frame and including an outer surface and exchangeable tools fastened to the outer surface, a working space defined within the machine adjacent the work drum, and at least one seat for an operating person, the at least one seat being movable into a working position in the work space adjacent the work drum so that the operating person can exchange the tools on the work drum.

Abstract: A floor covering removal machine for removing a floor covering that is secured to a floor that includes a drive frame formed with an underside caster assembly, and feed, ejection, and oppositely arranged cutter sides. A variable speed, reversible, motorized drum is mounted about the frame and cooperates with a gripping idler roller that is releasably biased toward the drum to establish a grip interface which conveys the floor covering from the feed to the ejection sides. In operation, the floor covering is pulled through the grip interface and thereby removed from the floor. The machine also may include a collapsible guide handle extending from the drive frame and a motor speed control. Optional retractable floor covering cutters are included that are deployable in a floor contour-following configuration. An optional alignment laser pointer is mounted on the frame for alignment during operation.

Abstract: The invention relates to a road-milling machine which has a ladder 11 to allow the driver's position 7 of the civil engineering machine to be climbed to easily. The ladder is mounted on one 1B of the two longitudinal sides of the frame 1 of the machine to be pivotable about an axis of pivot 27 extending substantially at right angles to the direction of travel. The ladder can thus be folded upwards to widen the working range of the machine. However, should the ladder not be in a state where it is folded upwards while the machine is being used to do work, the ladder cannot be damaged against obstacles which suddenly make an appearance in the working range. Should the ladder hit against an obstacle, the ladder is able to move out of the way of the obstacle by pivoting out of the vertical position in the opposite direction to the direction of travel.

Abstract: An asphalt pavement remover includes a rectangular backplate for attachment to moving equipment, an L-shaped lifting blade attached to the front of the backplate and a wedge-shaped splitter attached to the L-shaped blade. The L-shaped blade includes an upstanding arm and a lower arm, the latter of which is similar to a fork-lift blade. The wedge-shaped splitter extends in the direction of the lower arm of the L-shaped blade, i.e., away from the upstanding arm. The splitter has a forward wedge-shaped edge which is located rearward of the forward end of the lifting blade.

Abstract: A close proximity pavement grinder is utilized for grinding close to a raised structure such as a lower surface of curbs close to the curb wall. The grinding apparatus utilizes a wide grinding head with grinding blades mounted along the length of an arbor to grind the lower surface of the curb in a single pass. The grinder includes a narrow bearing and support at the outer end of the arbor and is driven at the inner end so that the grinding may be conducted within close proximity of the curb wall. The grinder has a pivoting grinding head that can be locked at various angles relative to the grinder to match the relative angles between the pavement and the lower surface of the curb.

Abstract: A hand tool for removing roofing shingles and nails. The toll has a head attached to an elongated handle. The head has a wedge-shaped cross profile. The head is comprised of a plurality of identical, parallel blades, having a relatively flat, pointed leading edge adapted to being inserted underneath the exposed edge of a shingle to be removed. The blade leading edge rises in vertical height to a trailing edge. The trailing edge is connected to a handle. Spacers are attached between the blades to form spacing between blades sufficient to trap any roofing nails holding a shingle to an underlying roof sheath.

Abstract: The shingle removing machine includes a frame supporting a power source, which, in turn, drives a lateral axle with a wheel at each end thereof, with each wheel having an eccentric pin driving a blade drive arm. Separate wheels support the frame. Each blade drive arm extends forwardly and has a relatively wide shingle removal blade at its forward end. The blades extend substantially the width of the machine. The forward ends of the blade drive arms are interconnected and include rollers riding on sloped ramps on the forward end of the frame. Rotation of the blade arm drive wheels reciprocates the blade drive arms forwardly and rearwardly, with the blades also lifting and lowering during the cycle as the forward ends of the arms ride up and down the ramps. The blade drive arm assembly may be quickly and easily disassembled for maintenance and repair in the field.

Abstract: A floor preparation machine that uses a number of vertical needles positioned in a tight rectangular pattern. The needles vibrate against the floor surface to prepare the floor surface. The needles are driven by a cam and cam follower. As the cam is turned by a motor, a number of ribs repeatedly contact the cam follower, which in turn repeatedly pushes the needles down. Under the top plate that supports the needles, is a rubber form that acts as a “spring” to force the needles up after they have been pushed down by the cam follower. In practice, the system produces a sustained vibration of the needles that breaks the surface to a depth of 1/16 to ? of an inch.

Abstract: A scraper apparatus includes a cart and a scraping arrangement located at a front of the cart. The scraping arrangement includes blades that are driven along a joint or crack by the cart to remove excess filling material deposited in the joint or crack of a working surface.

Abstract: A machine for scraping a floor covering from a floor has rear drive wheels and a forward blade assembly. Arms which each rotate independently on the frame at one end are connected to the blade assembly which independently rotate on their other ends. Thus, the blade is able to float and follow the contour of the floor even if the wheels and blade are riding on an uneven surface. The pitch and elevation of the blade assembly can be changed individually or simultaneously without inhibiting the floating motion of the blade assembly.

Abstract: An angled shank blade for a carpet or tile stripping machine with a flat bottomed blade for engaging the surface of a floor. The leading edge of the blade having an angle of about 20 degrees, followed by a tapered top surface portion and a rear portion. An angled blade head attached to the rear portion and angled upward at about 20 degrees. A shank attached to the blade at an angle of about 20 degrees for receiving the weight of the floor stripping machine and keeping the blade parallel to the floor while lifting the flooring material over the leading edge, the tapered portion, the blade head and shank smoothly and efficiently without binding. The blade may have a carbide insert for long lasting skiving of material from the floor.

Abstract: A concrete engraver apparatus including a carrier for use with a hand-held engraver. The hand-held engraver is detachably mounted to the carrier. The carrier has wheels and a handle attached to an enclosure. The enclosure includes a vacuum mount for attaching a vacuum tube to evacuate loosened particles from the enclosure during operation of the hand-held engraver.

Abstract: A machine for scraping a floor covering from a floor has rear drive wheels and a forward blade assembly. Arms which each rotate independently on the frame at one end are connected to the blade assembly which independently rotate on their other ends. Thus, the blade is able to float and follow the contour of the floor even if the wheels and blade are riding on an uneven surface. The pitch and elevation of the blade assembly can be changed individually or simultaneously without inhibiting the floating motion of the blade assembly.

Abstract: A bucket razor body has a coupling end and a scraping end facing away from the bucket. The coupling end has an upper and lower wall with a slot between the walls. The upper wall has threaded apertures with associated bolts for releasably coupling to front end loader equipment. The scraping end of the bucket razor body has an upper and lower. A slot is formed between the surfaces. Laterally aligned threaded apertures with seven associated bolts extending through the apertures. A scraping blade is formed with an interior end. The interior end is positionable within the slot. An exterior razor-like end extends from the slit to an elevation below the lower surface and lower wall to scrape road markings from a hard surface.

Abstract: In a stripping means for milling rolls (2) of a construction machine, comprising at least one stripping blade (8) arranged behind the milling roll (2) in traveling direction so as to be adjustable in height, which is able to glide over the surface (3) milled or to be milled by the at least one milling roll (2), it is provided that the stripping blade (10) covers the maximum milling width, and that a mounting means (16) adjustable in height relative to the stripping blade (20) is arranged for at least one lower stripper portion (20) adapted to the respectively used milling roll (2) or milling rolls, the lower stripper portion (20) being able to be positioned, by means of the mounting means (16), in a position corresponding to the milling roll (2) within the width of the stripping blade (10).

Abstract: An angled shank blade for a carpet or tile stripping machine with a flat blade for engaging the surface of a floor. A shank attached to the blade at an angle for receiving the weight of the floor stripping machine and keeping the blade parallel to the floor. The blade has a carbide insert for long lasting skiving of material from the floor. The carbide tip is easily replaced to keep the leading edge sharp. The carbide insert being held parallel to the floor by the blade such that it cuts at a preferred carbide blade tip angle of about 45 degrees with respect to the surface of the floor.

Abstract: A concrete grinding apparatus for use with a hand-held concrete grinder that can be detachably mounted in either a right-facing orientation or a left-facing orientation. The apparatus providing a variable wheelbase to modify grinder pressure acting upon a working surface. The apparatus further providing a mechanism to adjust the levelness of the hand-held grinder.

Abstract: A method for cutting pavement of an asphalt road or a concrete road in a circle for installation of a manhole, by using a cutting blade which has a pavement cutting edge serves as a tip for cutting the pavement and side edges serve as an inclined cutting surface to bore an inside of the pavement cut by the pavement cutting edge, thereby cutting the pavement in a frusto-conical shape.

Abstract: A surface abrader apparatus includes a casing, a motor mounted on the casing, one or more working tools, and an operating mechanism mounted to the casing and supporting the working tools outside of the casing. The operating mechanism is drivingly coupled to the motor for causing an impacting movement of the working tools against a workpiece in response to selected operation by the motor. The operating mechanism includes one or more elongated shafts reciprocally mounted in the casing parallel to one another and having same one ends extending from the casing, a drive shaft rotatably mounted in the casing between and parallel to the shafts and rotatably driven by the motor, and coil springs and cam elements for causing lifting and releasing of the shafts and the working tools, such as impact abrading heads, mounted on the same one ends of the shafts to produce impact movements of the tools.

Abstract: A traverse carriage and operator arrangement for transversely adjusting the abrader unit or units of a mobile surface abrading apparatus. In a preferred embodiment the traverse carriage is mounted on a cross-member by means of rollers and is operated by a specially designed, fluid-operated cylinder horizontally oriented in the mobile surface abrading apparatus and attached to the traverse carriage and the apparatus frame for moving the traverse carriage along the cross-member and positioning the abrader unit a selected distance along the cross-member transverse to the longitudinal movement of the mobile surface abrading apparatus.

Abstract: A fluid-powered tool assembly having first and second tool members, a body, and first and second rotatable shafts. The first shaft is attached to the first tool member for rotation therewith about a first axis, and the second shaft is attached to the second tool member for rotation therewith about a second axis. A linear-to-rotary force transmitting member is mounted for reciprocal longitudinal movement in response to selective application of pressurized fluid thereto.

Abstract: A floor-stripping tool for attachment to a standard pallet truck, thereby converting the pallet truck into a self-propelled floor stripper. The chassis structure of the tool includes fork holders, and stabilizing brackets. A blade attaches to a blade holder on the front stabilizing bracket. To remove a floor surface with the tool, a user first attaches the fork holders of the floor-stripping tool to the forks of a pallet truck; anchor bolts ensure a tight fit. The brackets are adjusted as needed. The forks of the pallet truck are lowered to insert the blades of the tool under the surface to be removed. Moving the forks forward removes the floor surface.

Abstract: A floor-stripping tool for attachment to a standard pallet truck, thereby converting the pallet truck into a self-propelled floor stripper. The chassis structure of the tool includes fork holders, and stabilizing brackets. A blade attaches to a blade holder on the front stabilizing bracket.

Abstract: A hydraulically powered self-propelled stripping machine having an electric motor for providing oscillating motion to a cutting head member. The electric motor driving a hydraulic pump for pumping hydraulic fluid to a hydraulic motor for driving the wheels of the hydraulically powered self propelled stripping machine. The hydraulic system having forward and reverse as well as speed control valves for controlling the direction and speed of the hydraulically powered wheels or for stopping. The hydraulically powered self-propelled stripping machine also having a hydraulic pressure safety valve for protecting the machine and the objects it engages from damage.

Abstract: A method for cutting pavement of an asphalt road or a concrete road in a circle for installation of a manhole, by using a cutting blade which has a pavement cutting edge serves as a tip for cutting the pavement and side edges serve as an inclined cutting surface to bore an inside of the pavement cut by the pavement cutting edge, thereby cutting the pavement in a frusto-conical shape.

Abstract: A surface mining and testing apparatus and system provides for the adaptation of a surface miner to the specific geological conditions of a new area of use. The special features of the surface miner are the arrangement of the milling roller (5) in front of the chassis (1) in the direction of mining, the undershot direction of rotation of the milling roller (5), as well as the adjustability of the milling roller (5) in its height and transverse slope in relation to the level. These functional features are accomplished with the testing apparatus in order to obtain the same kinematic conditions as in the surface miner. To make it possible to extrapolate the results obtained with the testing apparatus to the surface miner, the parameters overall weight, drive output and throughput of the testing apparatus are used as constant, lower ratios in relation to the surface miner.

Abstract: A machine which greatly reduces the labor required for repairing flat roofs on commercial and industrial buildings. Formerly, old roofing material usually had to be removed manually from the roof deck before new material could be installed. Removal of this old material was the most labor intensive part of the job. The present labor-reducing machine not only scrapes off the old roofing from the roof deck but also loads any material so scraped into a cart for removal from the roof. The machine comprises a pair of drive wheels, a flat conveyor belt, and a chisel-like front member. To begin the removal process, the latter is first wedged between the old roofing material and the roof deck; and then the drive wheels are used to push the chisel-like front member, when it so wedged, forward. The flat belt conveyor is mounted in close proximity to the front member so that as the old roofing material is being dislodged, it is directed onto the belt.

Abstract: An electric floor covering removal apparatus which is characterized typically by an electric motor fitted in a frame for driving a fan, a pair of hydrostatic pumps hydraulically connected to independent, hydraulically-operated wheel motors and a hydraulic gear pump for raising and lowering a landing gear with respect to the frame, deploying the floor covering engaging-implements of the apparatus and driving the apparatus to remove the floor covering. A pair of control arm levers are spring-loaded to neutral and serve to independently operate the hydrostatic pumps and the wheel motors in infinitely variable fashion, in both the forward and reverse directions. The driver's seat is mounted on an insulated cover or shroud that covers the electric motor, hydrostatic pumps and the hydraulic gear pump, as well as electrical gear and a hydraulic fluid reservoir located beneath these operating components.

Abstract: A mobile apparatus for removing floor coverings. The apparatus has a main frame supported by wheels and includes a scraper blade mounted on the front of the frame and a rotary cutter assembly mounted underneath the frame with controls whereby the scraping blade is used independently of the rotary cutters and the rotary cutters are use independently of the scraping blade, and wherein the rotary cutters may be moved from underneath the frame to one side of the frame for ready access to the cutter members of the rotary cutters.

Abstract: A hammer-ripper system for use with the mounting on the boom arm, of an excavator/backhoe, of a conventional hydraulically-operated hammer fitted with a “shortened” chisel. A “ripping-type” device like a chisel tooth mounts to a lever with its pivot point attached to the side of the hammer. One end of the lever extends to be impacted by under the shortened chisel, while the other end extends inward. Thus, the tooth end can be placed under embedded boulders and used to hammer (using the transmitted reciprocating action of the hydraulic hammer), and pry or break up the boulders from underneath with the combined hammering and ripping action.

Abstract: An apparatus for removing at least one surface layer from a floor. The apparatus includes a body frame mountable by a machine operator. A blade tool assembly having a scraping blade is secured to the front of the main body frame and can be used for removing floor covering. The blade tool may be replaced by a detachable transport wheel for moving the machine when not in use for removing floor covering. A pair of independent suspensions is attached to the rear end of the frame, and independent drive motors and wheels for moving the frame and blade tool with respect to the floor surface attach to each suspension. The independent suspensions include a pivot shaft attached to the frame with a suspension bar that supports the drive motor attached to each pivot shaft. Shock absorbers are attached to the suspension bar and to the rear end of the frame such that the rear of the apparatus adjusts when the apparatus encounters debris or irregular floor surfaces.

Abstract: A milling apparatus for preparing concrete floor surfaces consists of rear wheel motorized cart connected in tandem to a traction milling machine having a frame mounted drum for milling engagement with the floor and forward and rearward means for vertically adjusting the frame attached forward wheel means and rearward wheel means with reference to the floor. The forward wheel means includes a ski element and the rearward wheel means includes a wheeled dolly arrangement. The tandem connection consists of a specialized horizontally articulated hitch which transfers a portion of the weight of the motorized cart to the rear axle of the traction milling machine. An operator sits on the motorized cart and operates and steers the traction milling machine which includes motor means for powering said cart and the traction machine and steering means.

Abstract: A shingle removal tool includes a cutting head attached to a handle, the cutting head having a flat leading portion on which a series of nail engaging slots are formed creating a series of sharp tapered cutting edges at a leading end and a fulcrum edge at a trailing edge. An intermediate portion integrally connects the flat leading portion with the handle. The intermediate portion is curved preferably in the form of an arc of a circle to provide a concave inner surface that imparts a curvature to the lifted shingles and propels them in the direction of advancement of the tool and away from the user. A nail removing opening is provided on the intermediate portion so that larger nails can be removed by lifting the handle which smaller nails can be sheared off by the cutting edges or lifted by the engaging slots by lowering the handle. The tool is ergonomicaly dimensioned to facilitate use by users of average height with confortable and limited movements to increase efficiency of use and to minimize fatigue.

Abstract: Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supporting the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the apparatus comprising a lightweight rugged connecting element having a first tubular part and a second tubular part, those parts having spaced, parallel axis, the second tubular part pivotally connected to the head. There are two axially spaced eccentrics on the drive shaft, which rotate within two annular bearings carried by the first tubular part. Spiral grooves are sunk in the external surfaces of said eccentrics to communicate with said lubricant receiving space to receive lubricant for distribution along said eccentrics to the annular bearings.