Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7204493 | Lathe chuck with stepped jaws A chuck for mounting wheel castings having different diameters upon a wheel lathe for machining the casting to final shape is provided. The chuck includes stepped jaw inserts that cooperate with corresponding stepped part supports to securely mount the wheel casting... | 04/17/2007 |
| 6993821 | Manufacturing cell using tooling apparatus A manufacturing cell having a plurality of work stations, where at least one of the work station comprises a metalworking machine, and where at least one metalworking machine is provided with a modular tooling apparatus. The modular tooling apparatus consists of a b... | 02/07/2006 |
| 6883808 | Drill-chuck jaw with hard-metal inserts A drill-chuck jaw hag an elongated metal body formed with a toothed back face and an opposite front face. The body is generally symmetrical to a longitudinal plane bisecting the back and front faces. A pair of hard-metal insert parts fixed to the front face are each... | 04/26/2005 |
| 6880831 | Power-actuated lathe chuck A chuck has a chuck body rotatable about a chuck axis, a plurality of holders angularly spaced about and radially displaceable on the body and each formed with an outwardly flared seat centered on a respective seat axis, and an actuator for radially displacing the h... | 04/19/2005 |
| 6485032 | Lever-type lathe chuck with replaceable jaw inserts A chuck has a chuck body adapted to be rotated about a chuck axis and a plurality of elongated jaw arms angularly spaced about the axis, pivotal in the chuck body about respective guide axes extending secantally of the chuck axis, and axially slidable in ... | 11/26/2002 |
| 6427555 | Method of making drill-chuck jaw with hard-metal inserts A drill-chuck jaw is made by first forming an elongated metal body with a toothed back face and a front face, then machining a longitudinally extending groove having sides and a floor in the front face, and forming inwardly projecting and longitudinally s... | 08/06/2002 |
| 6302410 | Rod gripping jaw An improved jaw for a rod gripping device is provided including a front, rod engaging face with a plurality of teeth or studs made of a material harder than the jaw body, such as tungsten carbide, with the studs positioned to engage an outer rounded rod s... | 10/16/2001 |
| 6264210 | Quick-change jaw chuck system A jaw assembly for a jaw chuck for holding a workpiece to the spindle of a machine, such as a lathe, includes an intermediate coupling member that engages a master jaw slot formed in a master jaw which is disposed in a radial guide formed in the body of t... | 07/24/2001 |
| 6227549 | Insulated chuck jaw A chuck jaw that is configured and arranged to be used in combination with other chuck jaws for securely retaining a rotatable accessory, such as a drill bit, in position in a chuck assembly, where the chuck jaw includes a chuck jaw body that defines a ge... | 05/08/2001 |
| 5692422 | Squaring machine A squaring machine has an elongate housing with a rotatable spindle extending from one end thereof and attached to which is a tool for squaring the end of work piece. At the opposite end of the housing are first and second feed members, the first feed mem... | 12/02/1997 |
| 5529320 | Quick change top jaw A top jaw for attachment to a master jaw slidable radially in a front face of a rotary chuck toward and away from a central rotational axis of the chuck, the top jaw being suitable for alternate gripping of the inside and outside periphery of a tubular wo... | 06/25/1996 |
| 5409327 | Lock wire nut drilling An apparatus for drilling lock wire holes in lock wire nuts includes a variable speed drill press mounted on a work bench and having a vertically movable drill quill supporting a rotating drill spindle on one end of which is mounted a drill chuck for hold... | 04/25/1995 |
| 5330205 | Power chuck with quick change top jaw A jaw carrier arrangement is provided with a main jaw carrier which removably mounts a top jaw. The jaw carrier has a bore opening outwardly through a front face for receiving a rear support post provided on the top jaw. A clamping structure is provided o... | 07/19/1994 |
| 5269542 | Chuck jaws A chuck jaw is provided for holding an irregularly-shaped object such as a differential housing on a lathe. A chuck jaw body which is pivotally mounted to each chuck mounting block to pivot about an axis substantially tangential to a cylinder defined arou... | 12/14/1993 |
| 5137287 | Pivoted chucking jaws with low friction rollers A chuck jaw is provided having a pivotally mounted gripper mounted to the base jaw. Each end of the gripper serves as a chuck point, so that a three-jaw chuck can be used to provide six chuck points. Preferably, rollers are provided at each chuck point of... | 08/11/1992 |
| 4880245 | Chuck for concrete slab dowels A chuck for use in screwing one threaded member into another threaded member has a housing with a polygonal socket on one end for receiving a polygonal drive head of a wrench. The housing has a conical bore converging from the face toward the socket. A pl... | 11/14/1989 |
| 4796900 | Workpiece holding assembly for a chuck A workpiece holding assembly for use on a chuck includes a chuck jaw and an adjustable self-centering workpiece holder. The chuck jaw has an elongated body with opposite ends, a groove defined in one end of the body, and a pair of arcuate recesses formed ... | 01/10/1989 |
| 4655068 | Floating cylindrical mandrel and method for producing tubing A method and apparatus for producing tubing from hollows or workpieces which are in the form of tubes having greater wall thickness than the finished tubes. The method is carried out upon a mill of the general type known as a McKay rocker. The mandrel is ... | 04/07/1987 |
| 4546988 | Chuck top jaw with removable insert A top jaw for attachment to a rotary chuck, with inserts removably secured to a base, constructed to facilitate changing inserts with automated equipment. Slidably engageable pins and slots on the base and insert require positioning and removal of the ins... | 10/15/1985 |
| 3945652 | Adjustable work holding chuck A chuck assembly of the type adapted to be mounted on a spindle of a machine tool including adjusting means for accurately aligning the central axis around which the work engaging jaws are disposed with the longitudinal axis of rotation of the machine too... | 03/23/1976 |
