Abstract: The present invention relates to a method for operating a ground milling machine which comprises at least one height-adjustable milling roller, wherein the milling roller performs a tumbling movement (T?) which is controlled by way of open-loop and/or closed-loop control during lowering in operation. The present invention further relates to a control device for the closed-loop and/or open-loop control of this method, and also to a ground milling machine with such a control device.

Abstract: There is provided a vibrating nipper including a vibrating body in which a plurality of gears built therein and having eccentric pendulums are longitudinally arranged and rotated to generate longitudinal vibration, the vibrating body in which the gears rotated by an oil hydrolytic motor are longitudinally arranged to be rotatable, an eccentric pendulum mounted on each of the gears to generate the longitudinal vibration while rotating the gears, wherein a nipper blade is longitudinally mounted on a bottom of the vibrating body in such a way that the vibrating body is capable of being inserted deeply into the ground along the nipper blade when excavating the ground.

Abstract: Embodiments of the invention described herein pertain to a pneumatically powered shingle removing apparatus. The shingle removing apparatus includes a frame having a first end and a second end. A first pneumatic cylinder assembly is mounted adjacent the first end of the frame and a second pneumatic cylinder assembly is mounted adjacent the second end of the frame. The first pneumatic cylinder and the second pneumatic cylinder extend substantially parallel from the frame and each have a chisel extending at least partially from the respective first pneumatic cylinder assembly and the second pneumatic cylinder assembly, the chisels being moveable back and forth from a forward position. A stripping blade is attached to a front end of the chisels of the first pneumatic cylinder assembly and the second pneumatic cylinder assembly. A first air conduit delivers pressurized air to the first pneumatic cylinder assembly and a second air conduit delivers pressurized air to the second pneumatic cylinder assembly.

Abstract: An automated surface covering removal machine having a handle, a housing, a lever member, a reciprocating cylinder and edge means for providing vertical or near vertical movement of the edge means relative to the surface covering to facilitate removal of the surface covering is disclosed. The surface covering may be shingles, carpeting, linoleum, or any other type of surface covering. The automated surface covering removal machine is lightweight and easy to use and does not exert a debilitating backwards force on the user. The reciprocating cylinder allows for a variable stroke height of the tooth bar allowing for more rapid removal of a surface covering.

Abstract: A roof shingle peeler device which comprises a saw blade, a motor to operate the saw blade, a horizontal arm and skiis to regulate the depth of the saw blade, a wedge to remove the nails and shingles from the roof deck and enable the saw blade to cut the shingles into a predefined section, and a frame to facilitate the transportation of the predefined section of shingles for being received and collected into a bag for disposal. A hoist and return hoist are used to pull the roof shingle peeler device up and down the roof deck from the base to the crest while removing shingles.

Abstract: The present invention discloses a shingle removing apparatus which includes a handle, a stripper member, a drive assembly and a drive linkage assembly with lost motion mechanism. The stripper member is adapted for inserting under a shingle has a first end portion and a second end portion. The drive assembly drives at least a portion of the stripper member and the drive linkage assembly causes at least portion of the stripper member to reciprocally move up and down to thereby remove the shingle. The drive linkage assembly provides a lost motion mechanism which allows the stripper member to intermittently not be driven.

Abstract: The invention is directed towards a system and method for removing shingles from a roof comprising a shingle removal head, a boom arm assembly, a vacuum, and a containment bin. The head includes a frame that defines a shingle disposal area and includes a prying member having a lifting surface for engaging the underside of shingles and lifting them from the roof and directing them to the shingle disposal area. The head also includes a cutting member for receiving and decreasing the size of the removed shingles for removal from the head by the vacuum into the containment bin, both of which may be carried by a transportation unit. The head may be attached to the boom arm assembly that is carried by a transportation unit so that the assembly causes the head to engage and lift shingles from a roof, allowing operation of the head frame from the ground.

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 tiles or bricks shoveling device includes a body having front wheels and rear wheels, and a handle is connected to a rear end of the body. A motor is connected to the body and drives a circular member by its eccentric shaft. A block is fixed to the body and two posts movably extend through the block. A front board and a rear board are connected to the front and rear ends of the posts. Two springs are connected to the two posts to return the rear board. A shoveling blade is connected to the front end of the front board such that when the motor is activated, the posts are moved reciprocally and the shoveling blade moves linearly back and forth with the front board to shovel the tiles and bricks up.

Abstract: A floor stripping machine having the electric motor and hydraulic pump placed just aft of the blade engages adds weight to the blade and provides for a narrower more compact design with a lower center of gravity for better maneuverability and ease of access to narrow halls, doorways and rooms. A battery powered floor stripping machine may have batteries stored in the housing under the seat and have auxiliary batteries behind the seat on top of the housing for easy of removing the batteries for recharging. Additional batteries and or weights can be used on either side of the housing. In alternative embodiments the floor stripping machine can be remote controlled. Battery management with the auxiliary batteries being recharged during the day allows for eight hours of use. A trunk may store batteries, which can be slid onto a trailing cart to change batteries.

Abstract: A material removing device for removing materials from a surface includes a body having a handle assembly with a recoil mechanism and a driver slidably mounted to the body. A blade with a slotted edge is removably connected to the driver. An actuator mounted to the body provides a high impact to the driver to slide the blade in the longitudinal direction under the materials to be removed and then pivot the blade upward to pry the materials from the surface. The actuator can be pneumatically powered and activated by a manual or automatic trigger. The device is designed to be used as a hand held roofing tool and exhibits light weight and easy operation.

Abstract: A apparatus for removing surface coverings, includes a shaft having a first end and a second end; a sleeve slidably mounted on the first end of the shaft; a clevis pivotably mounted on a first end of the sleeve; a drive mechanism for shifting a rod between a first rod position and a second rod position relative to the shaft; and a blade mounted on the clevis and extending away from the shaft. The clevis is secured to the rod, such that as the rod moves between the first rod position and the second rod position, the clevis pivots on the sleeve, and the sleeve slides on the shaft to shift a leading edge of the blade between a first edge position and a second edge position.

Abstract: The invention relates to an apparatus for removing coverings laid on even surfaces, comprising a support frame (10) for mounting driving wheels (16) and for accommodating a motor (17) and a gear (18) for driving the driving wheels (16), and comprising a motor-driven separating knife (25). According to the invention it is provided that at least one loosely rotatable support element (21) is arranged on the support frame (11) parallel to the driving wheels (16).

Abstract: A shingle removal tool includes a support frame, a mechanism supported along the bottom of the support frame for moving the shingle removal tool along a surface, and a shingle removal plate having a topside, an underside and a shingle removing end. A rigid linkage has a first end and a second end, wherein the first end of the linkage is hingedly connected to the support frame, and the second end of the linkage is hingedly connected to the underside of the shingle removal plate. A flange depends from the underside of the shingle removing tool, the flange having a length. A rotator is supported by the support frame. A rotatable actuator is rotated by the rotator, and has an eccentric axis of rotation. The rotatable actuator is connected to the flange such that the flange moves about the axis of rotation while maintaining substantially the same orientation, movement of the flange resulting in corresponding movement of the shingle removal plate to which the flange is attached.

Abstract: A motorized floor stripper for stripping a floor covering away from a floor surface. The floor stripper has wheels and a motor mounted to a frame. An operator uses handles on the frame to move the floor stripper across the floor. The motor is coupled to an eccentric driver, which may be an eccentric cam. The eccentric driver is coupled in turn to a driven member. The driven member is coupled to the frame at a coupling point, and a working element such as a blade is attached to the driven member opposite the eccentric driver. When the motor drives the eccentric driver, the driven member drives the working element in a motion that depends on the configuration of the eccentric driver, the driven member, and the coupling point. By adjusting the location of the coupling point relative to the frame, the operator may adjust the motion of the working element to achieve a motion particularly suitable for removing the floor covering that is being stripped away from the floor.

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 pavement demolition hammer is removably fastened to a loader and includes a mounting plate securable to the loader. A framework is attached to the mounting plate and is provided with a lower spring and an upper spring spaced from the lower spring. A hammer handle has a proximal end pivotally mounted to the framework for swinging movement between the lower spring and the upper spring, and a distal end equipped with a hammer head adapted to engage the pavement. The loader applies a moving force to the mounting plate such that the lower spring is accelerated against the bottom of the handle causing the handle and the hammer head to swing upwardly from a pavement surface to be broken towards the upper spring. The handle and the hammer head return to the pavement surface either by gravity or acceleration from the upper spring against the top of the handle in a manner that the hammer head impacts and demolishes the pavement surface.

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: 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.

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.

Abstract: A vehicle for scraping a floor has an adjustable blade with various widths mountable thereon and is an appropriate vehicle size for moving through a standard door.