Abstract: In uninterrupted and neat machining of a workpiece or material, particularly extremely hard material, with an ultrosonic tool is obtained by keeping constant or substantially constant the contact pressure between the tool and the worked surface. This is done, for example, by feeding the tool by means of a spindle sleeve which is mounted for displacement in a feed head. The other end of the spindle sleeve, remote from the tool, is designed as the piston of a feed mechanism. By keeping the pressure P1 in the cylinder space above piston, or the volume of this cylinder space, constant, the contact pressure of the tool remains constant as desired. Since the piston displaced during the matching operation, this displacement must be determined, by means of a displacement pickup, for example. Through a very sensitive contact pressure control on a feed head of the working machine, to which the cylinder of the feed mechanism is secured, can be moved to keep the volume of or pressure in the cylinder space constant.
February 27, 1984
Date of Patent:
October 14, 1986
Mafell-Saschinenfabrik Rudolf Mey GmbH & Co. KG
Rudiger Haas, Ernst Krauss, Herbert Walter
Abstract: A work spindle device having a rotor which allows a workpiece to be fed and ejected quickly and permits the workpiece to be machined simultaneously at opposite ends thereof. A clamp member having collets on opposite ends and a central axial through hole for insertion of the workpiece therein is disposed in the rotor. Each of the collets is insertable in one of a pair of tapered holes defined in the rotor so as to be pitted therein. A spring means normally urges the collets and the corresponding tapered holes into interfitting engagement for clamping the workpiece in the rotor. The work spindle device also has a mechanism for releasing the collets and the tapered holes from their interfitting engagement to unclamp the workpiece from the rotor.
Abstract: A manual planing or milling tool having a rotary driven cutter is displaceable longitudinally along a fixedly arranged guide rail. The tool is connected with a holder which carries a running part sliding on the guide rail. The holder may be guided pivotingly or nonpivotingly with respect to the guide rail. The guide rail may be fastened to a workpiece support bar rotatable by 180.degree. so that the processing tool may be used in two different positions. The workpiece support bar may have two different surfaces, one being smooth for the working of large workpieces, while the other having grooves to receive smaller workpieces.
Abstract: A pivot connection for slip joint pliers in which a rivet has a shank with a preformed head at one end overlapping one of the plier halves to be connected, and the other end of the shank is headed over the other plier half and expanded into a hole in the other plier half tapered outwardly at a locking taper angle.
Abstract: A wrench having a stationary jaw mounted on a handle, a rigid member releasably attached to the handle and an adjustable jaw disposed on the rigid member, the rigid member retaining the adjustable jaw in an interengageable position with the handle when the rigid member is locked with the handle by a latch.
January 30, 1985
Date of Patent:
July 29, 1986
Donnie W. Dunn, Lisa A. Dunn, James H. Catlow, Lyndon R. Dunn, Willie M. Dunn, Donna S. Dunn, Rodger B. Wilkins, Lee A. Wilkins
Abstract: In order to achieve an improved chip and shaving ejection in a portable per, a small portion of the motor cooling air stream is diverted and directed through an air passage into a chip ejection channel. The volume flow of this chip ejection air stream may be controlled by a control slider gate to suit various operating conditions. The chip ejection air stream also serves to cool the drive belt and planing head. The diverted air flow keeps the chips in a sufficiently loose state to assure an effective, clog-free ejection of chips. Furthermore, a deflection flap is used in the chip ejection channel to eject the chips to either side of the tool as desired.
February 19, 1985
Date of Patent:
July 22, 1986
Karl M. Reich Maschinenfabrik Gesellschaft mit beschraenkter Haftung
Adolf Zaiser, Dieter Raichle, Helmut Schwaiger, Adolf Hermann, Edgar Bischof
Abstract: A power grip insert attachable to a handled instrument or to a user's hand, with one side contoured to accommodate the handle shank to be gripped, and an opposing side contoured in accordance with the musculature of hand palm. The palmar surface area includes dished areas for supporting the thenar and hypothenar eminences, and another depressed area into which the finger tips fit when clenching the instrument handle and grip insert together in the fist. Yet another contoured edge surface permits the thumb to close in cooperation with the fingers and effect a power grip around both the instrument handle and the grip insert.
Abstract: An adjustable wrench for use in rotating screw-on oil filters and the like. The wrench has a strap for encircling the filter, and a lever for tightening the strap about the filter. The lever has a first end attached to a first end of the strap, an intermediate portion attached to the second end of the strap, and a second end for movement between a first position in which the strap is loose about the filter and a second position in which the strap is tight about the filter. The second end of the lever being located substantially at the center of a circle defined by the strap when in the second position.
Abstract: Sharpener press-button is disclosed comprising a tubular body having one open end and another end closed by a transverse wall. The transverse wall is formed on its outer surface with an extension cooperative with a propelling pencil for fixing thereto a button. The button has a blade element including a central portion provided with an opening, two lateral converging flanks extending from the central portion and the two ends of the flanks remote from the central portion extending parallel and together in the direction away from the central portion. The blade element is housed within the tubular body, with the ends inserted into a recess in the inner face of the transverse wall and the central portion adjacent the open end of the body, the lateral flanks being formed with cutouts extending in the axial direction of the button and tapered in the direction away from the central portion of the blade element, the button having at least one radial penetrating aperture.
Abstract: A vacuum suction device comprises a vacuum suction plate formed by baking a porous material and having a flat suction face for holding a workpiece by suction; a base abutting on a bottom of the vacuum suction plate for supporting the vacuum suction plate and having a plurality of suction grooves in a part of a surface of the base abutting on the bottom of the suction plate, the suction grooves being coupled to a pipe of the base; an intake device coupled to the pipe of the base; a peripheral member formed of an airtight material for encircling the suction plate; and means for preventing a grinding liquid from getting into the vacuum suction device through the suction grooves. The preventing means prevents reduction in suction force applied by the intake device acting on the workpiece.
Abstract: A planing tool has a rotary planer head driven rotatably by an electric motor. The planer head is removably connected to a drive shaft which comprises a plurality of elements which can be axially disengaged to enable the planer head to be easily replaced.
Abstract: An improved bottle opening machine for smoothly removing crown caps from bottle necks of empty bottles contained in bottle cases which are being conveyed on a conveyance system in a single file, in which the cap removing is carried out by the steps of engaging of cap removing sections on rotary discs with the crown caps on the bottle necks in an area where the circular movement path of the cap removing sections and the linear movement path of the bottle necks mutually converge in the tangential direction, removing of the crown caps from the bottle necks under the influence of a moment which is produced as the former is separated from the latter as the rotary discs are rotated, and releasing of the removed crown caps from the cap removing sections with the aid of cap releasing mechanisms. To ensure that the cap removing sections are positioned correctly with corresponding bottle necks, at least a synchronizing means is rotatably mounted on the frame structure.
Abstract: A cue tip shaper, scuffer, and gauge with a built-in edge trimmer. The device has a carbide lined depression and outwardly extending lugs, also carbide covered. Relative rotation between the device and a cue tip shapes the tip, scuffs it to accept chalk and trims any material extending beyond the circumference of the stick. A gauge for the tip is provided in an edge of the device.
Abstract: Stationary apparatus presenting a combination memo pad holder and pencil sharpener assembly. The apparatus generally comprises a main housing having a compartment for insertion of a note pad therein. Flanges on the sharpener assembly releasably engage tracks on the housing so as to position the assembly in a first position if the apparatus is used on a desk top and a second position if the apparatus is attached to a wall or the like. The offset positions of the sharpener assembly enables a pencil to be inserted therein in a ready-for-use position.
Abstract: A combination ratchet and spinner wrench having a normal ratcheting capability and a free-spinning mode that can be used to easily and quickly pre-tighten a nut or bolt prior to final tightening or to remove a nut or bolt after it is initially loosened by the ratchet portion. This feature does not require the handle to be oscillated and is particularly useful when devices are located in areas where finger manipulation is difficult or impossible. Free-spinning is achieved by a combination of elements that include a rotatable housing incorporating a three-position pawl that has a neutral position as well as the two standard ratchet positions, a secondary bevel gear and a spinner drive shaft having at opposite ends a primary bevel gear and a spin knob. When the pawl is placed in neutral it is disengaged from the annular ratchet gear thus allowing the drive shaft to be directly rotated by the spin knob.
Abstract: A handle member having at least one circular opening proximate an end, and having a ratchet pawl engageable proximate the opening, and having a spring biased finger engageable into and out of the opening, with mechanical linkage for disengaging the ratchet pawl when the finger is disengaged from the opening, and including a plurality of tools having a generally cylindrical construction for insertion into the opening, each tool having a circumferential stop thereabout for engagement by the finger, and having circumferential ratchet teeth engageable by the ratchet pawl, whereby engagement of the finger against the circumferential stop holds the tool in the handle and permits ratcheting wrench action, and disengagement of the finger from the stop also disengages the ratchet pawl and permits the tool to be released from the handle opening.
Abstract: A grinding and polishing tool includes a pair of opposed grinding wheels for grinding or polishing simultaneously each of a plurality of discs located therebetween. Outer pulley wheels on a collar in cooperation with an inner pulley wheel support the discs peripherally and permit both rotation about and translation along the respective rotational axis of each disc in response to forces imposed by the grinding wheels. A uniform thickness of the discs is achieved by employing the discs themselves randomly distributed about the collar as spacers between the non-resilient grinding wheels to initially contact and grind the thicker discs until all discs are of equal thickness. Gimbal mounting one grinding wheel permits self-alignment thereof in a parallel relationship with the other grinding wheel to obtain parallel ground or polished surfaces on each disc.
February 5, 1985
Date of Patent:
June 3, 1986
St. Florian Company, Ltd.
Harold R. Klievoneit, Augustine G. Esposito
Abstract: A reversible bladed screwdriver comprising a slotted hollow handle and a pivotally attached reversible screwdriver blade capable of being reversed when in a fully extended position, being held in a conventional colinear position when retracted and being held at an oblique angle to the handle for maximum application of torque when in a semi-extended position. Such a screwdriver is particularly useful for one handed application of torque.
Abstract: A saw blade has a series of triangular saw teeth, each tooth having a cutting edge and back edge joined by a tip edge with a cutting angle tapered rearwardly from the front cutting edge. The cutting angles of the cutting edges are progressively reduced from the leading end to the trailing end. Additionally, the teeth may be formed of a combination of laterally projected teeth and straight teeth.
Abstract: A plane with an interchangeable iron that can be displaced at an angle to the contact surface of the plane frame, along the direction in which the plane travels. The iron is also displaceable on each side of a midposition parallel to the contact surface of the plane and transversely with respect to the direction in which the plane travels. The iron is secured in a predetermined position by a support that has a holder against which the iron rests. A support component can be displaced transversely on a frame. The holder is mounted on the support component, so that it can be displaced longitudinally and transversely with respect to the bottom contact surface of the plane.