Abstract: A snap-fit self-adjusting ratchet wrench which has two guided jaws which move linearly against each other along a guided pin, and which are hinged to a handle by pins. The hinges on the jaw to the handle are designed with override leverage wherein the gripping force is increased as the handle is swung in forward stroke and releases in back stroke to provide ratchet action. A return spring exerts force on the jaws for an automatic snapping on the workpiece. A locking mechanism may be provided by a fastening means for retaining the guiding pin to hold the jaw opening to a fixed predetermined position.

Abstract: First and second metal portions are tightened integrally on both surfaces of one or plural sheets of electrostrictive element bodies polarized in the thickness direction and divided in two uniform halves using a tightening tool, thereby a flexible vibrator is provided, and a cutting tool is installed to an output end portion of the flexible vibrator and a work is cut by ultrasonic vibration generated in the flexible vibrator. Workability of the cutting working is improved and the structure is simplified, and the device as a whole is made compact.

Abstract: A crank operated torque tool has a tool holder shaft with an offset central portion and two straight, aligned, end members forming a crank. One end of the tool is preferably formed to receive and temporarily secure a torque tool. The other end has one end of an elongate, cylindrical, handle piece rotatably attached thereto, the other end of the handle piece being adapted to removably and rotatably receive a disc-shaped, thrust piece.

Abstract: The pipe rotary cutting device of this invention comprises shifter means which is operative to rotate a cylindrical body relative to a main shaft to thereby rotate an internal gear secured to the cylindrical shaft. The rotation of the internal gear rotates pinion gears secured to the main shaft to thereby rotate eccentric shafts provided coaxially with the pinion gears. Then the rotation of the eccentric shafts is converted by sliders into radial movements. A cutting tool as well as disc cutters are provided on the sliders respectively through a cutting tool holder and cutter holders. The pipe rotary cutting device of such arrangement enables the steps of chamfering and cutting to be carried out simultaneously, and accordingly the chamfering step of removing the outward burrs created in cutting a pipe is totally unnecessary.

Abstract: A twist-proof mechanical connecting assembly includes first and second components. The first component has a recess formed therein with a groove in the form of at least one pocket. A connecting element in the form of a bolt penetrates the first component and is secured to the second component for interconnecting the components. The bolt has a polygonal head including a safety cup embedded in the recess. At least part of the safety cup is outwardly bent into the at least one pocket for locking the safety cup to the first component and securing the connecting element against loosening.

Abstract: Slip-joint pliers of the two-position jaw adjustment type and adjusted by a method of pivot pin through slots shifting in the inoperative positions of the pliers, and settings maintained by interference of opposing plier body elements and in which the pivot pin remains on the respective center lines of the tool in the operative positions resulting in a cooperative geometry for spring loading the plier handles and enabling the plier jaws to fully clamp as well as have the tool cut materials in both jaw adjusted positions, the spring loaded handles set, prior to initiated spring resistance, so that the cutting elements are lined up, ready to start cutting as an alternative to visual alignment only, of the cutters.

Abstract: An annular milling cutter for machining bevel gears is disclosed, which has a set of cutter blades including an inner blade and an outer one. A blade point width and a radius of curvature of a corner of a head of the outer blade are larger than the counterparts of the inner blade.

Abstract: An ajustable torque controlling mechanism has a drive shaft for driving connection with a member to be driven and a torque releasable clutch connected with the shaft and including a wear resistant torque sensitive ball detent release device and a compression spring rate adjusting arangement including radial arms on the clutch co-acting with generally ellipsoidal control edges carried by the housing surrounding the shaft.

Abstract: An arrangement for centering and clamping of work pieces comprises tension levers swingably supported on a base plate, the tension levers of which are arranged coaxially on a pivot, while the other tension lever is supported on a second pivot which has the same distance to the center of the arrangement as the hinge pin. The contact surfaces with which the tension levers grasp a work piece, are designed so that the perpendicular line extends on the particular tangent at the contact point between contact surface and work piece through the center of the arrangement. This forces the work piece, independently of its diameter, continuously into the center in the clamping process and, consequently, centers it. Due to the arrangement of the tension levers, inserting work pieces transversely to the chuck axis is possible in spite of the center clamping process.

Abstract: The known turn broaching of crankshaft main bearings is not suitable for broaching crankshaft bearing pins for the connecting rods because that would require locating the rotational axis of the crankshaft in the connecting rod bearing pins, whereby the crankshaft would rotate eccentrically. The resulting unbalances prevent driving the crankshaft with the r.p.m. required for the turn broaching operation. To avoid this problem a broaching lathe for the rotational or turn broaching of crankshaft connecting rod bearing pins is equipped with a steady rest including a rotating support device which permits mounting the crankshaft in the lathe in such a way that the rotational axis coincides with the axis of the connecting rod bearings of the crankshaft.

Abstract: An improved end mill which is less subject to breakage in that its helical flutes in the cutting protion are tapered in depth from a maximum proximate the cutting tip to a minimum proximate the transition to the end mill's shank portion.

Abstract: A fuel system adjustment tool includes an elongated shaft and a rotatable rod disposed within the shaft. At one end of the rod is a drive that operably fits to an adjustment point on a carburetor. At the other end is a rotatable knob that produces a tactile engagement or clicking sensation at selected degrees of rotation, preferably every 180 degrees of rotation. The engagement is produced by a collar having a notch therein on the end of the shaft, and spring loaded balls in recesses on the interior of the knob. As the knob is rotated, one of the balls falls into the notch at the selected degree of rotation, but is releasable from the notch upon further rotation.

Abstract: Adjustable pliers of the tongue and groove jaw adjustment type in which the pivot pin carries and slides one member along a tracking section of an intermediate portion of the other member in an interlocking but free sliding manner and in which the pivot pin has been placed closer to the work center of the plier jaws for increased leverage of the tool.

Abstract: An open end wrench for use with a nut allows ratcheting of the wrench without removing the wrench from the nut. The wrench has fixed upper and lower jaw portions. An upper primary drive face and an upper secondary drive surface are located on the upper jaw portions. A lower primary drive face and a lower secondary drive face are located on the lower jaw portions. A rear stop face is located at the junction of the upper and lower jaw portions. Clearances are provided in the upper and lower jaws to enable the wrench to be rotated relative to the nut either approximately 30 degrees from a primary to a secondary drive position, or 60 degrees from primary to primary drive positions.

Abstract: In a device for facilitating the radial adjustment of a cutting edge member of a boring and turning tool with a rotatable adjusting ring (18) arranged on the outside of a tool-carrier housing, an extendible and retractable locking ram (42) can be extended from the spindle housing (7) of the machine tool, which locking ram in an extended position allows the adjusting ring to be movable to cause a radial adjustment of the cutting edge member and in a retracted position causing the adjusting ring (18) to be fixed with respect to the tool-carrier housing and the machine tool spindle (4) so that no radial adjustment is possible. The device can be automated, since the locking ram (42) can be controlled by a general machine control.

Abstract: A hammer head construction (10) comprising: a hammer head member (11) provided with an elongated core recess portion (13); and, a plurality of weighted core inserts (12) comprising core insert members ((16)(16') wherein each of the individual core insert members (16)(16') have a different effective weight in the other core insert members (16)(16') and are adapted to be received on an individual basis in the core recess portion (13) to produce a hammer head construction (10) having different effective weights.

Abstract: A plurality of bar stock retaining sleeves control the bar stock fed therethrough to a machine center to prevent excessive vibration and end-whipping during a cutting and machining operation. A first retaining sleeve is positioned within the feed orifice of the machine center, and includes a master bushing having an inner diameter substantially equal to the outer diameter of the bar stock being cut, which master bushing is positioned adjacent the orifice outlet at the the cutting head. A second retaining sleeve is supporting exteriorly of the machine center in abutting relationship to the stock inlet of the feed orifice. The second retaining sleeve includes at least two bushings having an inner diameter substantially equal to the outer diameter of the bar stock, the two bushings being connected in spaced relationship to each other by an elongated cylindrical tube having an inner diameter greater than the inner diameter of the connected bushings.

Abstract: A recess attachment with preset quick change tooling for use on a multiple spindle automatic machine includes a base formed and adapted to be mounted at a work station on an automatic machine. The base is movable in a defined direction during a machining operation and has a slide mounting surface in a plane forming a small acute angle with the direction of movement. A slide is positioned on the slide mounting surface and there are springs attached to the base and the slide inhibiting relative movement therebetween. A tool holder is removably mounted on the slide and there is an adjustment member positioned on the tool holder and a cooperating stop on the slide. The tool holder has a tool receiving opening and there are means for fastening a cutting tool in the opening. The base and slide move in unison to a precutting position.

Abstract: A glass grinding and/or polishing apparatus comprises a chuck which holds a glass to be repaired, and is rotated by means of a drive motor. The chuck is mounted in an arm which is arranged to move in an arcuate path over a substantially flat rotary grinding disc, and subsequently over a secondary grinding station and two polishing stations. During operation, fluid is continually circulated through a sealed enclosure of the apparatus, to flush away particles of glass, etc., which are collected as sediment in a disposable tank.

Abstract: A bar stock feed mechanism includes a filler tube having provision for coaxial alignment with an attachment to the rotatable work receiver of a lathe, for example, and is adapted to coaxially receive a section of bar stock for incremental feeding to the chuck of the lathe. The tube, at its end portion axially remote from the chuck contains a piston adapted to abut the proximate end of the bar stock, and the piston is pressurized for advancing the stock. Filler tubes are provided in several diameters for accommodating several sizes of bar stock. In the event of bar stock of substantial length, the filler tube is surrounded by a concentric extension tube which rotates with the tube and chuck or equivalent work receiver of the machine or lathe.