Abstract: An electric hair cutting apparatus having a motor for rotating a shaft, which, rotates an eccentric about the axis of the shaft, but not about the central axis of the eccentric, A cylindrical bearing is positioned around the eccentric. A drive tip is provided with a follower end which is shaped and positioned to engage with the bearing surrounding the eccentric. As the eccentric rotates, the bearing alternately pushes on left and right arms of the follower end of the drive tip, causing the drive tip to oscillate back and forth about a pivot point, The angle of the bearing with respect to the eccentric allows for generally continuous contact between the arms of the follower end of the drive tip with the bearing, even throughout the pivoting of the drive tip.

Abstract: The invention relates to a motor-driven cutting device with a double blade arrangement driven by means of a double eccentric arrangement having opposing oscillating blade movement, comprising an advantageous construction with a separate double eccentric group for the drive device that can form a uniformly operable front-part group, particularly in conjunction with the double blade arrangement at a particularly favorable cost, and that is advantageous for installing the front-part group in the production process and/or when replacing the preferably uniformly operable front-part group.

Abstract: The clipper lever support insert may be inserted into a clipper lever. A finger insert may have two approximately parallel sides formed from metal. The sides may be shaped to the approximate form of a drive finger side. A shaft end insert may have a plurality of sides approximately in the shape of a rectangular box formed from metal. The sides may be shaped to the approximate form of a motor end cavity side.

Abstract: A paper processing tool includes a base having a receiving area for selectively receiving a sheet of paper. The tool further includes a first lever having a handle portion, the first lever being pivotable relative to the base about a first axis. An intermediate lever is pivotable relative to the base about a second axis in response to movement of the first lever. At least one cutting element is arranged along a cutting plane, the at least one cutting element being configured to selectively engage the sheet of paper. A drive lever is actuable by the intermediate lever to move the at least one cutting element relative to the base. The drive lever is pivotable relative to the base about a third axis parallel to the cutting plane.

Abstract: The invention relates to an eccentric drive (1) and especially to an eccentric drive for a portable handheld work apparatus having a wheel (3) driven by a drive motor (2). A cam (5) is eccentrically fixed to an end face (4) of the wheel (3). The cam (5) is held by a connecting rod (6) and cylinder-shaped roller bodies (7) are mounted between the connecting rod (6) and the cam (5). The roller bodies (7) have axial ends (8) which engage in an annular slot (9) of the wheel (3). A holding element (11) is disposed on the cam (5) and limits the axial play of the roller bodies (7).

Abstract: The invention relates to an eccentric drive (1) and especially to an eccentric drive for a portable handheld work apparatus having a wheel (3) driven by a drive motor (2). A cam (5) is eccentrically fixed to an end face (4) of the wheel (3). The cam (5) is held by a connecting rod (6) and cylinder-shaped roller bodies (7) are mounted between the connecting rod (6) and the cam (5). The roller bodies (7) have axial ends (8) which engage in an annular slot (9) of the wheel (3). A holding element (11) is disposed on the cam (5) and limits the axial play of the roller bodies (7).

Abstract: A motion converter comprising a drive head mounted eccentrically onto a drive shaft, and which is eccentrically displaced when the drive shaft rotates. The converter additionally comprises a displaceable transmission element and a displaceable tool holder holding a tool. The transmission element and tool holder are moved to-and-fro when the drive shaft is rotated. The excursion of the to-and-fro motion is adjustable by pivot means, preferably a first pivot pin, displaceably affixed to a housing and connecting the transmission element to the housing.

Abstract: An interlock structure of the cable type for stacked plural drawer cabinet structures which limits the opening of drawers to a single drawer and prevents plural drawers being opened at the same time. An elongate base or frame is mounted in the cabinet adjacent to the drawers. The frame supports plural (one for each drawer) eccentric blocker elements and adjacent follower elements and supports at one end a provided slider element having limited movement. A cable is attached at one end to the slider and at the other end to the frame with an intermediate loop which provide two cable courses, one of said courses threaded on the successive blockers and the other course operably threaded over the respective adjacent followers maintaining the respective blockers and followers in operative engagement. The blockers are moved by interference engagement by a selected drawer.

Abstract: An electrical motor operated clipper comprises a pair of longitudinal blades, wherein a longitudinal movable blade having a rectangular slot on the backward end is tightened to a fixed blade by a machine screw, a locking washer, and a belt-shaped spring. The electrical motor is mounted in a housing. The fixed blade projects from the forward end of the housing. A lever connects the movable blade in the slot to a transmission driven by the output of the motor, and is rotatably mounted in a metal cover which is mounted in the housing. A two-line-teeth comb-attachment can be attached onto the longitudinal blades for guiding the haircut.

Abstract: An improved method and apparatus for preparing a body site prior to the application of medical treatment at the site is disclosed. The apparatus and method provide for the use of a hand-held, electrically-energized clipper having a disposable cutter head for removal of body hair at the site. An economical, disposable cutter head is described.

Abstract: An improved clipper and oscillating drive lever for engaging a slot in the movable cutter of a clipper. The distal end of the lever has two resilient prongs biased to a first spread greater than the dimension of the slot such that the prongs must be squeezed together to engage the slot. Some preferred embodiments include inwardly-turned tips. Reduced noise and improved cutting efficiency are provided.

Abstract: A long-hair cutter unit associated with a device, such as an electric shaver, includes a lever which translates rotary oscillators to line motion of a slide member. The slide member is connected to a movable cutter part. The lever is preferably integrally formed with the slide member and includes an arm portion having first and second hinge portions.

Abstract: An upright cordless grass trimmer incorporated incoporates fixed multi-toothed bottom blade and plural sets of top blades which oscillate over the bottom blade to achieve cutting. The sets of top blades are driven by a motor through a gear and cam mechanism and are synchronized so that one top blade set cuts at a different time in the cycle from the other set to achieve a counterbalancing and load leveling effect. A clutch mechanism absorbs abrupt blade stoppage and shock situations and a rechargeable battery pack is releasably received by an elevated cavity in a shroud which mounts over the motor and drive mechanism. An upright handle and electrical control means are attached to the trimmer which allows the operator to operate the trimmer in an upright position.