Abstract: A cleaner includes: a suction motor that generates suction force; a dust separation unit that is disposed behind the suction motor and separates dust from air sucked by the suction force of the suction motor; a dust container that stores dust separated by the dust separation unit; a handle disposed behind the dust separation unit; a battery housing disposed under the handle; and a battery that is detachably coupled to the battery housing and is separable downward from the battery housing.

Abstract: The invention relates to a device and to a method for machining, in particular, drilling printed circuit boards (PCB) having several conductive layers (Ln). The device has a drilling spindle (2) bearing an interchangeable drilling tool (1). The drilling tool (1) has a lateral surface that has a non-conducting layer (9) at least in sections, and a core (8) that is conductive at least in sections.

Abstract: A portable adjustable multiple end drill device comprises a rotary power source communicating with a plurality of end drill units. The device includes restraints for holding the rotary power source and a hearing rigidly attached to the restraints for rotating the device. The device includes two end-caps, each of which is connected to a respective arm directly or via at least one modular extension of a respective arm. The end-caps are also connected to guide bars and a splined power transmission shaft. The device imparts a set of rectilinearly aligned work areas of a work piece, which work areas are respectively and simultaneously drilled by the respective drill bits. A rectilinear position of each end drill unit can be adjusted mechanically. Each drill bit holder, or base, holding a respective drill bit or fastener bit is rotated by a system of bearing-journaled drive gears.

Abstract: Systems and devices adapted to provide a low profile drilling and reaming tool/device are disclosed. In one embodiment, a device includes: a base housing; a fixture head connected to the base housing, the fixture head including an aperture therethrough; a rotational connector disposed within the aperture and configured to rotate within the aperture; and a fixture slidingly connected to the fixture head via the rotational connector, the fixture extending through the aperture.

Abstract: The invention relates to a tool for machining sliding surfaces of a bearing shell (30), comprising a rotary drive for driving a drilling spindle (20) that can be rotated about a rotational axis and at least one first cutting cartridge that is mounted on the drilling spindle (20) in order to cut the bearing shell (30) to a certain wall thickness by rotating the drilling spindle (20). The tool is characterised in that the first cutting cartridge can be adjusted by an adjustment means in a direction of adjustment that has a component in the radial direction of the drilling spindle, while the drilling spindle (20) is rotated by the rotary drive. The invention further relates to a bearing shell (30) comprising a deliberately structured sliding surface (31) and to a method for producing a bearing shell (30) comprising a deliberately structured sliding surface (31).

Abstract: A cordless magnetic drill is disclosed. The drill comprises a control unit, a motor which is connected with the control unit, a gearbox which is connected with the motor, a power source which is connected with the control unit, and a magnetic base. The gear box is used for regulating the output rotation speed of the motor. The power source is used for supplying power to the motor. The magnetic base can be an electromagnetic chuck, an electro-permanent magnetic chuck, a permanent magnetic chuck or the combination of a permanent magnetic chuck and an electromagnetic chuck. The control unit is used for controlling the operations of the motor and the power source and establishing or cutting off the connection between the power source and the motor. The cordless magnetic drill of the present invention is convenient and very safe to use.

Abstract: A reusable low cost drill bit element for operative, removable attachment to a turning implement for drilling anchor installation holes, particularly of at least ½? diameter, in drywall. The drill bit is comprised of a section to be engaged with the turning implement and to be turned therewith, a drilling section with angled step sections in common planes perpendicular to the drill bit axis to perpendicularly bore into the drywall and form a perpendicular through aperture of a desired diameter, and an element to prevent the drill bit from falling behind the wall so that it can be reused to bore additional holes for other anchor.

Abstract: A spindle drive coupling releasably connects a cordless electric motor to an auger assembly used to drill holes in ice on a body of water. The coupling has a sleeve supporting a split head onto the drive shaft of the motor with a clamp assembly.

Abstract: An electric drill has a handle, a body and a drill chuck. The handle is provided with a battery and a switch. The body comprising a shell, a motor fixed in the shell and an impeller fixed to an axle or shaft of the motor. The shell is provided with a plurality of air outlets at a position corresponding to the impeller, the impeller being able to rotate with the axle of the motor to produce an air current to cool the motor. An enclosure of the battery is provided with a plurality of through holes. An air current channel is formed inside the handle and the body and connected to the environment via the through holes of the battery enclosure. A heat dissipating device is located in the air current channel and contacts the switch. A part of the cooling air current passes through the air current channel to cool the battery before getting to the motor.

Abstract: A one-piece drilling head (4), which is securable, in a material-locking manner, on an axial end of a helical shaft of a drill, is formed of a hard material and has four radially extending, in a cross-shaped manner, legs (5) forming respective cutting edges (6), and a tangential reinforcement (7) provided at a radially outer rim of each leg (5) in an axial region of a cutting edge (6).

Abstract: A tool spindle for machining or producing elliptical surfaces, particularly elliptical bores, includes a housing (1) of two parts (31 32), a sleeve (2) rotatable mounted in the housing, a tool carrier shaft (3) rotatably mounted in the interior of the sleeve (2) for carrying a machining tool on the outer end thereof, the tool carrier shaft having an axis of rotation (13) in parallel spaced relationship with respect to the axis of rotation (12) of the sleeve, and a drive mechanism (4, 5, 6, 7, 8, 9, 11, 18, 21, 30) for driving the tool carrier shaft and the sleeve at the same speed in opposite directions.

Abstract: A rotating dual attachment receptacle apparatus tool which allows the operator to use more than one tool accessory without the need of frequent changing of the drilling, driving or fastening accessory. The rotating apparatus tool has three (3) major parts: a stem grip housing having a motor and power means disposed therein; a safety guard housing attached to one end of the stem grip housing and a rotating drill head assembly disposed within the safety guard housing. The rotating drill head assembly has two (2) conventional drill chucks located at opposite ends thereof and is held in place within the cavity of the safety guard housing by means of a main drive shaft which extends from the top inside portion of the safety guard housing into the stem grip housing. The rotating drill head assembly is so constructed that it can be rotated in a 360 degree plane about the longitudinal axis of the main drive shaft.

Abstract: A hand tool can remove burrs from an aperture in a workpiece. The tool has a hollow handle and a shaft rotatably mounted in the handle to reciprocate axially therein. The tool has a thruster for urging the shaft to extend axially. A rider is mounted in the handle for engaging and rotating the shaft as it extends axially from the handle. This rider can allow axial retraction of the shaft into the handle without rotation. A deburring bit (e.g. a countersink bit) is mounted at an outer end of the shaft. Thus the bit turns when the shaft extends as the handle withdraws from the workpiece.

Abstract: A portable gas operated rotary tool is provided for milling a surface on the end of a cylindrical workpiece. The tool has a motor powered by a pressurized gas, such as compresseed air. The motor directly drives a rotary milling head which is axially aligned with the axis of rotation of the motor. The motor has a stator chamber which houses a rotor having radial slots. Vanes are journaled within said slots for radial movement within the slot and define progressively expanding cavities. The milling head has a central bore for mounting on an arbor of the motor. The milling head includes blades for milling a frustoconical surface on the workpiece and a non-locking pilot tube to align the tool with the longitudinal axis of the workpiece. An air motor design is also disclosed that provides very high rotary speeds using standard air system pressure, very high horsepower, a low polar amount of inertia and low torque.

Abstract: A portable gas operated rotary tool is provided for milling a surface on the end of a cylindrical workpiece. The tool has a motor powered by a pressurized gas, such as compressed air. The motor directly drives a rotary milling head which is axially aligned with the axis of rotation of the motor. The motor has a stator chamber which houses a rotor having radial slots. Vanes are journaled within said slots for radial movement within the slot and define progressively expanding cavities. The milling head has a central bore for mounting on an arbor of the motor. The milling head includes blades for milling a frustoconical surface on the workpiece and a non-locking pilot tube to align the tool with the longitudinal axis of the workpiece. A novel air motor design is also disclosed that provides very high rotary speeds using standard air system pressure, very high horsepower, a low polar moment of inertia and a low torque.

Abstract: A cutting tool assembly and, more particularly, a novel holding device for cutting tools, especially such as flat beaded drill bits which are employed in the drilling of track rail. A tool holder possessing a generally solid cylindrical construction, having a first cylindrical shank portion is adapted to be fixedly installed in the rotary drive unit of a rail drill, and wherein the tool holder includes a second cylindrical shank portion coaxial with the first shank portion having a tool-mounting projection end. A clamping member extends transversely across a longitudinal slot formed in the second shank portion whereby actuation of the clamping member, such as a screw or the like, will selectively widen or narrow the slot. The shank end of a flat beaded track drill is inserted into the slot, with raised longitudinal beads on the opposite surfaces of the drill bit engaging into complementary longitudinal grooves formed in the facing surfaces of slot in the tool holder.

Abstract: A deep-bore drilling machine consists of a deep-bore drilling unit (1) which is driven by rotation and has a deep drill tool (4, 7). The front end (7) of the deep-bore drilling tool (4) is led into the drill bushing (10) at the beginning of the drilling operation. The drill bushing (10) is thereby contained in a main spindle (22) and is replaceable. Also, the main spindle (22) can also be driven independent of drive (2) of the deep-bore drilling unit (1) by another drive (30).

Abstract: A boring bar assembly for boring large diameter turbine bores in the field, the assembly utilizing a small hydraulic motor which drives a boring bar through an in line double reduction gear drive with a reduction ratio in excess of 100:1 and an output shaft which compensates for as much as 6.degree. angular misalignment between the boring bar and the output shaft of the gear box.

Abstract: An apparatus and process for the continuous cutting of a generally cylindrical rod from soft flexible polymeric foam slabs is disclosed.

Abstract: What is proposed is a drilling attachment for use with a machine tool that rotates a workpiece in which the drilling apparatus is moved into an operative position to the workpiece by means of the machine tool slide and is rotated with the workpiece so that a drilling member associated with the rotating drilling apparatus is caused to rotate and to enter the workpiece while the same is rotating.

Abstract: There is disclosed an attachment for a counter-rotating coaxial drive fastener gun having a cylindrical housing adapted to be threadably attached to the outer drive member of a coaxial drive fastener gun and having an inner cavity with a ring gear fixedly attached therein. A spider has a projecting end thereon adapted to engage the inner drive of the coaxial drive fastener gun and further has a plurality of planetary gears journaled therearound and is inserted into the inner cavity of the cylindrical housing with the planetary gears engaging the ring gear. A central drive gear of smaller diameter than the planetary gears is inserted into a central opening between the planetary gears and engages each of the planetary gears. A reamer is removably coupled to the central drive gear and rotated thereby.

Abstract: The invention relates to a threading tool for internal threads with a cutter holder which is displaceably mounted on a cutter holder carrier shaft co-axial to the main axis of the rotatable tool which coincides with the thread axis during the cutting process, whereby the said cutter holder shaft is moved forwards and backwards periodically with the forward feed corresponding to the thread pitch in the direction of the main axis in the thread chasing operation by a cam control with a camshaft co-axial to the cutter holder shaft and rotating with a differential speed relative thereto, whereby through a corresponding radial displacement of the cutter holder the cutter is raised during return travel and in the thread chasing operation is set to engage lower and lower from one thread chasing operation to the next up to the final cutting depth.

Abstract: A drill bit or other working tool is provided with driven end segments which are removably received in longitudinal slots formed in a shank. The slots bottoms are contacted by the driven end segments to align the working tool with the shank; and, slot side walls contact the driven end segments for transmission of torque to the working tool. The working tool and shank are formed separately, then connected together, and the shank is connected to and driven by a rotary device.

Abstract: A right angular gear drive attaches directly to an electric hand drill following removal of the drill chuck. A power-operated tube cutter and burr remover are driven directly by the output shaft of the gear drive. A slide is fixed to the gear drive immediately rearwardly of the cutter element and is received within a guide and cover member which may be engaged with a floor or work bench during use. Spring means returns the guide and cover member to its original position after use.