Abstract: This disclosure relates to a pile-driving vehicle (1), comprising a chassis (11), a movement system (15) for moving the vehicle (1) on a soil, a first driving apparatus (21) and a second driving apparatus (22). Each driving apparatus (21, 22), which is intended to drive a respective pile into the soil, comprises a first member (31) that is constrained to the chassis (11), a second member (32) that is movable relative to the first member (31) along a driving line (200) and an actuating device (33) for moving the second member (32) relative to the first member (31). The movement of the second member (32) comprising an outward stroke, during which the actuating device (33) pushes the second member (32) towards the soil, applying a force on the second member (32) along the driving line (200), and a return stroke, during which the second member (32) is moved away from the soil. The second member (32) is designed to transmit the force to the pile to be driven in.

Abstract: A drywall screw gun multitool (10) incorporates a screw gun on a first end and a cutter assembly (60) tool on an opposing end. A user can turn the tool around to switch from the screw gun tool to the cutter assembly (60) tool. The drywall screw gun multitool (10) comprises an electric motor (50) that spins both the screw gun and the cutter assembly (60). A drywall screw gun multitool (10) may also include a dust collector assembly (80) that draws air in from the cutter end (26) of the tool and through a filter (84). A drywall screw gun multitool (10) may also include a light 33 to aid the user in low light conditions and a stud finder (39). The cutter assembly (60) tool and dust collector may be detachably attachable to the housing (20) of the multitool.

Abstract: A surgical instrument for treating the tissue of a patient is disclosed. The surgical instrument comprises a housing including a handle, a housing frame comprising a housing connector, and a drive system comprising at least one electric motor. The surgical instrument further comprises a shaft assembly releasably assembled to the housing including a shaft frame comprising a proximal connector and a distal connector, wherein the proximal connector is releasably coupled to the housing connector and a shaft drive system comprising at least one rotatable shaft operably coupled to the electric motor. The surgical instrument further comprises an end effector releasably assembled to the shaft assembly including an end effector frame comprising an end effector connector releasably coupled to the distal connector of the shaft assembly, a plurality of staple cartridges removably stored in the end effector, and a plurality of end effector drivers operably coupled to the rotatable shaft.

Abstract: A dust collection system for a rotary power tool, which has a flexible shaft connected to a handpiece, includes a vacuum blower configured to generate a negative pressure and a connecting hose defining a first void region fluidly connected to the blower and which has the negative pressure. The connecting hose is configured to extend along a first length of the flexible shaft. The dust collection system further comprises a nozzle portion defining a second void region fluidly connected to the first void region and which has the negative pressure, the nozzle portion being configured to extend along a second length of the handpiece.

Abstract: The invention relates to an extractor (1), a process and a set of tools for extracting a safety screw or a broken screw, consisting of inserting an extractor (1) into a hollowed bore (17) in said screw, by inserting the rod (3) of the extractor (1) into said bore (17) and by percussion on the head (7) of said extractor (1) using a percussion tool (49), so as to couple the extractor (1) and the screw (13) in rotation; and extraction of the screw (13) by loosening it using a key suitable for with the head (7) of the extractor.

Abstract: Systems, instruments, and methods are described in which an apparatus comprises a housing including a scalpet device. The scalpet device includes a scalpet array that includes scalpets arranged in a pattern. The scalpets are deployable from the housing to generate incised skin pixels at a target site. The housing is positioned and the scalpet array is deployed into tissue at the target site. Incised skin pixels are generated when the target site is a donor site, and skin defects are generated when the target site is a recipient site. The incised skin pixels are harvested.

Abstract: Systems, instruments, and methods are described in which an apparatus comprises a housing including a scalpet device. The scalpet device includes a scalpet array that includes scalpets arranged in a pattern. The scalpets are deployable from the housing to generate incised skin pixels at a target site. The housing is positioned and the scalpet array is deployed into tissue at the target site. Incised skin pixels are generated when the target site is a donor site, and skin defects are generated when the target site is a recipient site. The incised skin pixels are harvested.

Abstract: A machining apparatus arranged to work an internal ma-chining surface of a workpiece is described, the machining apparatus including one or more tools rotatably supported in a housing and projecting, at least partially, from the periphery of the housing, wherein at least one driving roller is arranged, radially displaceable, in a cut-out in the housing diametrically opposite the tool, and the driving roller is connected to an adjusting mechanism which includes a turnable adjusting sleeve which surrounds substantially the whole of a driving motor and is arranged substantially concentrically to the driving motor.

Abstract: A modified power tool which includes a housing, a motive source disposed at least partially within the housing, a rigid and curved extension extending from the housing, a flexible shaft extending through the extension, and a connector assembly which includes a shaft and a connector extending from the shaft.

Abstract: A combination drywall screw gun and rotary saw device kit featuring a base that has a body, a handle with a trigger, and a drive shaft connected to a motor. The kit has a screw attachment component that functions to install screws that has a screw bit, a shaft lock, a screw drive shaft, a depth guide, and a collet nut. The screw attachment component can be attached to and removed from the base using an attachment means. The kit has a saw attachment component that functions as a rotary saw that has a saw component and a saw drive shaft. The saw attachment component can be attached to and removed from the body portion of the base using the attachment means The kit has a wrench piece for engaging the collet nut to tighten or loosen the screw bit.

Abstract: The invention relates to a drive device for alternatively driving a tool disk (2) of a tool turret (4) or at least one machining tool, which can be fastened to the tool disk (2) by means of a retaining unit (6), by means of two drive means (8, 10), which can be driven by a common drive unit (14) having a drive shaft (12), the drive means (8, 10) being connectable to output means (20, 22) by means of a coupling unit (18) that can be controlled by at least one actuating unit (16), the output means being used alternatively to drive the tool disk (2) or the machining tool, the drive device being characterized in that at least the drive unit (14) is arranged inside the tool disk (2) together with the drive means (8, 10).

Abstract: An auxiliary rotary tool drive apparatus mounted on, or an integral component of, hand-held rotary power tool has an extendable and retractable auxiliary drive shaft and a gear assembly that is selectively operatively engaged with the power transmitting shaft and gear assembly of the power tool and driven thereby using only the hand grasping the power tool for driving screws, fasteners, bits or other work performing members attached to the auxiliary drive shaft without having to move or remove the existing work performing member from the holding member of the power tool.

Abstract: A drill tool is provided with: a drive source accommodated in a tool body 2; a bit drive shaft 3 which is rotation-driven by the drive source and provided projectingly from a front end of the drill body 2; and a diamond bit 4 attached to a front end of the bit drive shaft 3. Further, the drill tool is provided with a vibrating apparatus which generates vibrating force which acts in the axial direction of the bit drive shaft 3, a magnitude of which pulsates, and vibrating moment which acts in the rotational direction of the bit drive shaft 3, a magnitude of which pulsates.

Abstract: An ergonomically efficient cordless power tool system having desired power-to-weight ratios may be configured by reducing weight in one or more constituent weight groups of a given cordless power tool system, while maintaining or improving the total power output of the tool system. An example cordless power tool system may be configured to output a maximum power of at least 475 watts, and have a maximum power output to weight ratio of at least 70 watts per pound (W/lb).

Abstract: It is suggested to machine contaminated surfaces, in particular radioactively contaminated concrete surfaces and masonry with pneumatically actuated striking tools. It has been shown that this is an extremely low-dust machining method with which the essentially the particles are struck off in the size order of 0.2 to 2.0 mm. The method may be realized with a device (1) with which in a housing (2) several chambers are arranged over one another. Most preferred at the top a pressurized air feed chamber (10) is fed via a pressurized air connection (3). Therebelow there is located a pressurized air suction chamber (12) which comprises a suction connection (4). At the bottom there is arranged a collecting chamber in which chisel-like hammer bolts (51) are effective. The hammer bolts which are part of the striking tools (5) project out of the housing (2).

Abstract: A power drill with a saw blade transmission including a motor fastened inside a housing to turn a drill, a driven gear meshed with a drive gear mounted on the output shaft of the motor, a channel bearing disposed inside the housing, a transmission gear disposed inside the housing and driven by the driven gear, the transmission gear having an eccentric transmission shaft driven by the driven gear to impart a reciprocating movement to the channel bearing, and a linking shaft fixed to the channel bearing and driven to reciprocate a saw blade for cutting.

Abstract: An improvement is provided in a screw gun used in the drywall installation industry. The improved screw gun has a conventional screw driving head at the forward end of the gun. A rear drive shaft extends from the motor of the gun, and an access member is provided at the back of the screw gun to provide access to the distal end of the drive shaft. An adapter member is adapted to be received in and withdrawn from the access member. The adapter member has a rotatable cutting tool associated therewith. Rotational motion is transmitted from the drive shaft to the rotatable cutting tool by the adapter member when the adapter member is received in the access member and the rear drive shaft is driven by the motor.

Abstract: An improvement is provided in a screw gun used in the drywall installation industry. The improved screw gun has a conventional screw driving head at the forward end of the gun. A drive shaft extends from the motor of the gun, and an access is provided at the forward end of the housing of the screw gun to provide access to the drive shaft. An adapter member is adapted to be received in and withdrawn from the access member. The adapter member has a rotatable cutting tool associated therewith. Rotational motion is transmitted from the drive shaft to the rotatable cutting tool by the adapter member when the adapter member is received in the access member.

Abstract: An apparatus for forming a slit in a rock and a concrete surface has a simple construction to enable a deep slit having a predetermined width and smooth inner surface to be made efficiently and also decreases the slit making cost due to replacement of bits. This slit forming apparatus comprises a plate type bit (17) fixedly secured to the leading end of a laterally swingable plate (13), a drill bit (11) fixedly mounted on the leading end of a rod (9a and/or 9b), which is disposed along at least one side of the plate, so that it may rotate and slide, and striking means (5 and/or 12a, 12b) for striking the plate and the rod simultaneously or separately. Further, the rod has at its front end portion a stabilizer for stabilizing the direction of sliding. The plate type bit consists of a plurality of detachable bit blocks.

Abstract: An apparatus for providing a reciprocating motion. The apparatus has a housing block that contains two movable arms in spaced apart relationship to one another. The movable arms are each controlled by independently attached fluid driven actuator cylinders that are mounted externally of the housing block. Tools for the altering of a workpiece may be attached to one or both ends of the movable arms. An embodiment utilizes a rack and pinion gear arrangement to immobilize any imbalance in forces that may exist when the movable arms are biased against a workpiece.

Abstract: An apparatus for supporting conventional hand-held pneumatic breakers in such a way as to break a concrete slab down to the desired precise depth. The slab can be a building floor, bridge deck, or other slab required to be broken to a predetermined depth. The apparatus comprises a mounting frame adapted to replace the bucket of a mini-loader such that the mounting frame can be positioned at an adjusted level and orientation by the hydraulically operated arms and rams of the mini-loader. The mounting frame has an upper flange from which depend U-shaped guiding brackets between which are guided the transverse handlebar of each breaker. A guide for each drill bit of the breakers is fixed to the mounting frame. The breakers are free to move between a top and a lower limit position relative to the mounting frame. In the lower position the handle bars are supported by the bight of the U-shaped brackets.

Abstract: A percussion tool usable as part of a single tool impact device or a multi-tool impact device. In each case, the tool is rotatably driven by a high-torque rotary actuator with the tool being longitudinally splined and received within a correspondingly longitudinally splined hollow drive shaft of the actuator. The tool extends fully through the drive shaft to a rearward end thereof at which is positioned a percussion hammer to provide reciprocating endwise impact to the tool. The tool is held within the drive shaft by a splined lock member which can be rotated between a release position with its splines aligned with the drive shaft splines, and a locked position with its splines misaligned with the drive shaft splines. The device is mountable on a mobile vehicle having an articulated arm.

Abstract: This invention is a machine for ventilating roof decks which, without such ventilation, entraps moisture which leads to reduced insulating capacity, deterioration and the like. This ventilating device includes a mobile carriage, an extensible lift and an impact head along with associated operating mechanisms.

Abstract: The present invention relates to an arrangement for use in surface treatment. The arrangement includes at least two elongate operating members, the underside of the operating members either being formed to allow for surface treatment or having attached thereto material to facilitate surface treatment. The operating members are so mounted as to be capable of longitudinal movement, relative one to another. Drive means are provided which impart a longitudinal, reciprocal moment to each of the operating members. At least one handle or grip member is provided for use by an operator. On actuation, the drive means impart longitudinal, reciprocal moments to the elongate operating members, the undersides of which are applied to a surface to be treated.

Abstract: A rock drill for drilling a plurality of arrayed continuous bores includes a plurality of rods positioned so as to be able to drill several arrayed continuous bores, a rotating member to give rotation to the rods and a single percussion member which imparts percussive force to the plurality of rods. The plurality of rods may be passed through integrally formed rod guides by connecting several cylindrical members juxtaposed in parallel. The guide rod may optionally include, at its rear end, a swivel which also acts as a rod holder.

Abstract: A power transmission device for enabling each of a plurality of separate tools having a respective operating gear and an associated power-transmitting wire connected thereto, to be selectively coupled to a main drive gear. The device includes a housing in which the operating gears and a like plurality of associated gear shifting units are spaced circumferentially about the centrally located main drive gear. Each gear shifting unit includes a stationary tubular column, a non-rotatable but axially displaceable and upwardly spring-biased tubular rod which rotatably supports the associated operating gear at its top end and extends co-axially through the column, and a sleeve freely rotatable about and axially movable with the rod within the column.

Abstract: A hydraulically actuated auger is adapted for mounting on a skid steer vehicle. The auger includes a hydraulic drive motor for driving the main drive shaft of the implement as well as an auxiliary drive shaft interconnected with the main shaft by multiple chain and sprocket drives disposed therebetween. An augering tool is mountable on one or the other of the output shafts of the implement. Use of the appropriate chain and sprocket drive with the hydraulic output of the drive motor permits variable speed settings for the hydraulic auger.

Abstract: A bolt-setting and rock-drilling apparatus has a rail which can be swung about and axis and axially displaced therealong to position a drilling carriage and a bolt-setting carriage alternately with respect to a rock wall in which the bolt is to be lodged. The carriages are slidable on opposite sides of the rail and, in the upper end thereof, in alignment with the drill holder, is an opening drill through which the main drill passes. The opening drill, which is of a configuration enabling it to form a conical mouth to the hole bored, by the main drill, is displaceable parallel to the main drill when its holder engages a clutch member carrying the opening drill. The conical mouth facilitates subsequent insertion of the bolt.

Abstract: A rock drilling machine, e.g. for drilling with a diamond core bit, has a first power rotated chuck for gripping the drill string. The first chuck can be swung offset the drilling axis into a position to grip an input shaft of a reduction gearing coupled to a second chuck. The first chuck and its motor can thus rotate also the second chuck which is used for example for drilling down a borehole lining pipe. The two chucks are mounted on a common slide that is power feedable back and forth along a feed beam or mast.

Abstract: A power tool includes manually operated selector means for alternately establishing rotary-hammer and hammer-only modes of operation for the associated drill bit. The attachment is in the form of an elongated member having a longitudinally extending blind bore for receiving the drill bit; retaining means are provided for releasably mounting the attachment on the drill bit. An annular shoulder defining the mouth of the blind bore is in abutting engagement with another annular shoulder, the latter being arranged to receive impact blows from the hammer mechanism of the power tool. In one embodiment, this second mentioned annular shoulder is constituted by a tappet forming part of the hammer mechanism. In another embodiment, this second mentioned annular shoulder is an integral part of the drill bit. Impact blows are transmitted to the attachment only through the area of engagement of the aforesaid annular shoulders.

Abstract: Auger apparatus comprising a driving power train in which one or two auxiliary powertrain boxes are provided, two auxiliary boxes being used when two or more augers are to be driven, and one auxiliary box being used when only one auger is to be driven. The apparatus as a whole can be substantially shorter and closer to the ground than the apparatus of this type heretofore used, which required less excavating of the ledge adjacent the wall in which drilling is to occur, and makes possible easier transportation.