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 |
| 7325812 | Grip assembly for clutch cap, front sleeve, rear sleeve and method of making A grip assembly for one of a clutch cap for a clutch mechanism, a rear sleeve or front sleeve for a chuck assembly having a chuck mechanism with a plurality of adjustable jaws. The grip assembly includes an inner sleeve having open top and an open bottom opposite th... | 02/05/2008 |
| 7243923 | Centering drill chuck A drill includes a chuck which has a body member including a bore to receive a tool. Jaw members frictionally engage the tool to retain the tool in the chuck. A member is associated with the jaw members and the body to move the jaw members between clamping and non-c... | 07/17/2007 |
| 7080964 | Tool chuck having a light transmitting capability A preferred embodiment of the invention comprises a tool chuck for a power hand tool of the type which has a generally cylindrical elongated housing with a motor contained within the housing or case and the motor having an output shaft that extends from the nose end... | 07/25/2006 |
| 7018146 | Chuck A chuck for use with a manual or powered driver including a generally cylindrical body having a nose section and a tail section. The tail section defines an axial bore formed therein to mate with the drive shaft of the driver and the nose section defines an axial bo... | 03/28/2006 |
| 5649460 | Quick-change spindle liner assembly A spindle liner and spindle liner assembly are for use in a lathe. A quick-change feature allows the spindle liner to be readily installed and readily replaced with a new spindle liner. The spindle liner has a tubular sleeve with a set of annular bearing ... | 07/22/1997 |
| 5135241 | Non-impact keyless tool chuck sleeve A keyless tool chuck sleeve is provided for rotary tools which features an elastomeric cover integrally molded to the chuck sleeve to improve the operator's grip during opening and closing of the chuck. The chuck sleeve of the present invention further pr... | 08/04/1992 |
| 5123663 | Method of determining minimum number of segments for collet for cutting tool holder A method of determining the minimum number of segments of a metal collet for a cutting tool holder having a truncated conical portion having a small-diameter end and a cylindrical portion connected to the small-diameter end. The collet is formed with slit... | 06/23/1992 |
| 5054974 | Tool holding device The tool holder, which serves principally for receiving a thread cutting tool, has a length compensation under tension and compression. This purpose is served by two compression springs which comprise massive elements of foamed, open and closed cell polyu... | 10/08/1991 |
| 4968194 | Tap chuck crank A hand crank for use on a drill press mounted chuck during a tapping operation. The crank comprises a body having an aperture which permits the crank to be installed on and in surrounding relationship to the drill press chuck body. A spring biased pin ent... | 11/06/1990 |
| 4939834 | Machine tool with tool change mechanism A tool change mechanism in a machine tool includes a tool change arm arranged to attach a protection cover member to the forward end of a spindle head for protection of a ring secured to the forward end of a tool spindle in the spindle head and to remove ... | 07/10/1990 |
| 4836723 | Spindle assembly An improved high-speed spindle assembly for a shank-driven cutting tool comprises a hollow spindle for a collet, a titanium alloy drawbar within the spindle for threadingly engaging the collet, and a tubular resilient member within the spindle surrounding... | 06/06/1989 |
| 4407615 | Tool-clamping device A tool-clamping device for a hand tool machine with a rotary drive spindle includes a tool-clamping set having an outer sleeve mounted on an inner sleeve which serves to clamp a tool to be used and a locking plate which is pivotal relatively to a housing ... | 10/04/1983 |
| 4390311 | Tool support for tool machines A tool support for a hand tool machine includes a housing surrounding a drive spindle having a recess to receive a tool-receiving sleeve. This recess accommodates a compression spring which biases an end portion of the sleeve. The sleeve is also provided ... | 06/28/1983 |
| 4081038 | Hand held impact device A hand held impact device comprising a housing and an impact mechanism located therein. The housing is provided with an opening at its front end through which opening a working tool is introducable to receive impacts from the impact mechanism. A maneuver ... | 03/28/1978 |
| 4075927 | Tool orienting and release mechanism for machine tool A machine tool having a tool-supporting hollow spindle has the tool mounted in fixed relation to a draw bar which slides axially within the spindle between a tool retaining position and a tool release position. A barrel cam within the spindle is adapted t... | 02/28/1978 |
