Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 6547259 | Master and insert jaw system The jaw assembly includes a master jaw and an insert jaw. An engagement surface on the master jaw provides a mounting surface for the insert jaw. The master jaw is contoured to provide a minimum of mass opposite the mounting surface and opposite the engag... | 04/15/2003 |
| 6491305 | Chuck and gripping claws for chuck A chuck comprises: a chuck body attached to a spindle of a machine tool; master jaws attached to the chuck body along the normal of the chuck body and formed with T-shaped grooves extending along the length thereof; T nuts having tops and trunks, the tops... | 12/10/2002 |
| 6478311 | Expendable jaw system An expendable jaw combination for use in connection with a chuck for a lathe, milling machine, or the like to hold work stock. A receiver member is attached to the chuck, and an engagement member is provided in an elongated recess in the receiver member f... | 11/12/2002 |
| 6241261 | Chuck In a chuck (1) with moveable base jaws (11) inserted in radial grooves (3) in a chuck body (2) with each base jaw (11) having a releasable top jaw (21) attached to it, a joining piece (12) protruding towards the top jaw (21) is formed onto each base jaw (... | 06/05/2001 |
| 5984321 | Universal quick jaws The present invention discloses a set of multiple universal adjustable soft jaws 26 for holding workpieces for being mounted onto a lathe chuck body 14 for mounting onto the spindle 15 of a lathe 10. The multiple jaws 26 are mounted onto the face of the c... | 11/16/1999 |
| 5979914 | Top jaw with machinable inserts A lathe chuck jaw assembly utilizes top jaws which have replaceable inserts mounted to their clamping faces. The inserts are used to provide a contact surface to hold a workpiece during machining. The contact surfaces of the inserts may be machined for ma... | 11/09/1999 |
| 5899464 | Jaw assembly for holding a workpiece A quick-change jaw assembly for use in machining operations. The assembly includes a top jaw which may be removed from a chuck and thereafter repositioned on the same or a different chuck without losing the accuracy previously established through machinin... | 05/04/1999 |
| 5845912 | Adjustable quick change jaw apparatus An adjustable quick change chuck jaw apparatus for attachment to a master jaw in the front face of a rotary chuck allows a machinist to quickly change the chuck jaws from one diameter to another. A generally rectangular jaw body is connected to the master... | 12/08/1998 |
| 5842705 | Quick-change jaw assembly A rotary chuck having a plurality of quick change jaw assemblies each including a master jaw carried by the chuck body and a top jaw releasably secured to the master jaw by a single retaining fastener having a shank including a frustoconical portion. A re... | 12/01/1998 |
| 5842704 | Chuck jaw and quick change jaw inserts A chuck jaw assembly for securing work material upon a machine tool, the assembly includes a jaw and replaceable inserts. The jaw provides a mounting means allowing jaw inserts to be quickly replaced by removing one screw, furthermore inserts are provided... | 12/01/1998 |
| 5791661 | Compliant chuck jaws A chuck has a plurality of top jaws for engaging a workpiece. Each top jaw has a recess and a slot that extend completely through the top jaw. The recess and slot allow the forward end of the top jaw to deflect in a rearward direction. This motion allows ... | 08/11/1998 |
| 5735534 | Easily replaceable top jaw for a chuck A top jaw assembly for mounting upon the master jaw of a chuck for a lathe includes a mounting base and a top jaw. The mounting base contains two bores which facilitate securement to the master jaw, and a threaded hole. The top jaw is secured to the mount... | 04/07/1998 |
| 5664793 | Quick-change chuck jaws A chuck jaw assembly includes a base and a removable jaw. A tongue and groove interconnection is provided between the base and the jaw in the form of a longitudinally tapering dovetail. As the tongue is pushed along the groove, its sides are tightly wedge... | 09/09/1997 |
| 5551710 | Universal modular sleeve-clamp systems A universal sleeve-clamp for using interchangeable jaw pieces to clamp a workpiece has a sleeve with a plurality of radially moveable elements. Features are provided for locating and attaching the jaw pieces to the radially moveable elements so that, when... | 09/03/1996 |
| 5542686 | Chuck jaw manufacture A jaw assembly (17) in combination with a master chuck jaw (18) of a chuck (16), the assembly (17) having a base (29) that includes a sleeve insert (48) that is splined (49) to mate with a spline (50) in a bore (44) in the base (29); with an annular chamf... | 08/06/1996 |
| 5524910 | Independent chuck jaw insert having a registration surface enabling locking at a specific position An independent jaw insert locks in a fixed location. Using a post, the post has a flat extending to a transverse groove. An inserted rod locks the post. In addition, a set screw having a point lands in a dimple on the post; two such set screws apply a pin... | 06/11/1996 |
| 5498008 | Chuck jaw locking apparatus for rotatable machine tool This disclosure is directed to a chuck system for a machine tool such as a lathe. It incorporates an elongate cylindrical body which terminates in a set of collet fingers having enlargements at the detail end whereby the enlargements define a circular bod... | 03/12/1996 |
| 5464232 | Locking tool holder apparatus A locking jaw assembly having a workpiece clamping top jaw securely interconnectable to a master jaw by a key locator and a lock bolt wherein the top jaw may be readily removed from the master jaw by simply loosening the lock bolt and another top jaw may ... | 11/07/1995 |
| 5460389 | Jaw assembly A jaw assembly for use with a lathe chuck which is rotatable about an axis and provided with at least two first cooperative mating portions circumferentially spaced apart about the axis. The jaw assembly includes at least two cylindrical bodies. Each body... | 10/24/1995 |
| 5344166 | Jaw assembly for chucks A jaw assembly is provided for chucks. The assembly includes a master jaw mounted to a chuck for movement toward and away from the rotational axis. The master jaw includes a plurality of stepped apertures extending into the front face and parallel to the ... | 09/06/1994 |
| 5236207 | Segmented adjustable top jaw for a chuck and method for using the same A segmented adjustable top jaw (25) capable of being mounted upon a chuck has a slot (100) partially extending the length of the jaw (25) and defining a body inner portion (105), a body outer portion (110) with a gripping surface (30), and a hinge (115) t... | 08/17/1993 |
| 5199725 | Adjustable top jaw An adjustable top jaw is provided which is attachable to a master jaw which is in turn attached to a chuck of a lathe or similar machine. The top jaw comprises a base segment, top segment drive block and a lead screw. The base segment is mountable on the ... | 04/06/1993 |
| 5190300 | Top jaw and wedge connector A top jaw system for securing a top jaw in position above a chuck on a milling machine, lathe or the like is provided. The system generally includes a base jaw, top jaw, master jaw, and a conventional jaw nut. The base jaw includes a bottom portion and a ... | 03/02/1993 |
| 5163693 | Top jaw and wedge connector A top jaw system for securing a top jaw in position above a chuck on a milling machine, lathe or the like is provided. A protrusion extends upward from the chuck and is preferably attached to the chuck by rigid attachment to a jaw nut which is positioned ... | 11/17/1992 |
| 4996758 | Method and apparatus for spur and helical gear manufacture A method is described for assuring concentricity of a gear's pitch circle with its axis, the pitch circle having a non-constant radius about the axis. The method comprises the steps of: determining the gear's pitch circle and its position of maximum radia... | 03/05/1991 |
| 4772034 | Soft jaw construction The soft jaws of a lathe chuck or the like are constructed to be engaged by studs of an adjustable lock ring device for holding the jaws during the machining thereof to fit a workpiece to be held by the jaws.... | 09/20/1988 |
| 4722536 | Quick change chuck jaw A chuck for gripping a workpiece during a rotary operation includes a chuck body with a master jaw movably mounted on the chuck body. The master jaw includes a bayonet type locking structure. The master jaw also includes a face with at least one pin recip... | 02/02/1988 |
| 4706973 | Chuck and top jaw assemblies Top jaw assemblies combined with a chuck. Each of these top jaw assemblies comprises a body having a base projecting radially inwardly when mounted to the chuck, a cylindrical wall in the body which with the base provides a cutout portion and in which a w... | 11/17/1987 |
| 4667972 | Chuck master jaw and false jaw construction In an arrangement for coupling a false jaw to a master jaw of a chuck, wherein a positive locking is effected by a radial displacement, the master jaw is provided with an extension having a stop surface and a projection. The false jaw has a recess for rec... | 05/26/1987 |
| 4561663 | Jaw locking means for lathe chucks To firmly retain the jaw of a lathe chuck against movement it is formed with a transverse passageway or hole through it about midway of its length, a U-block is inserted in it in an inverted position so its legs will bear on the chuck face and a bolt is t... | 12/31/1985 |
| 4507843 | Clamping assembly A method and a clamping assembly for securing rock bit sections during welding. The assembly has a chuck jaw that is supported by metal rods, which give the assembly enough resiliency to conform to the shape of the rock bit and which keep the chuck jaw pa... | 04/02/1985 |
| 4277073 | Insert type soft chuck jaws A soft chuck jaw comprising a hardened jaw body having a wedge locking means thereon and an insert of soft expendable material retained therein.... | 07/07/1981 |
| 4046390 | Dead stop step chuck An emergency chucking assembly is provided with a dead stop feature which prevents drawback when closing the collet. The assembly does not require a special collet to achieve the dead stop feature and can be used on any conventional collet, such as a one ... | 09/06/1977 |
| 4023815 | Collet chuck assembly for custom applications A collet chuck assembly is provided for accommodating workpieces of unusual shape and non-standardized sizes, as well as standard sizes. The assembly includes an insert configured to be firmly received into and held by standard sized collets. The insert h... | 05/17/1977 |
