Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4762448 | Threading apparatus for milling machines Threading apparatus for a vertical milling machine includes a threaded sleeve at the upper portion of a milling machine draw bar and a split nut thread guide secured to the top of the milling machine and about the upper portion of the draw bar. When the s... | 08/09/1988 |
| 4759113 | Hob clamping system A tensioner having screw threads tightened by rotation of a hob drive (15) is used for applying clamping pressure to a hob (10) in a working position in a hobbing machine. The tensioner extends through the hob between the end supports (11 and 12) of the h... | 07/26/1988 |
| 4759115 | Numerically controlled automatic tool changing machining center having a bar-type spindle A numerically controlled automatic tool changing machining center is provided with a rotary driven spindle concentric within which is a spindle bar that may be reciprocated out from or into the spindle by a hydraulic cylinder. Located at the forward end o... | 07/26/1988 |
| 4758122 | Tool clamping apparatus A clamping apparatus for clamping the attachment for mounting the tool to the part to which the tool is mounted of the machine tools is disclosed. The attachment for mounting the tool is coaxially provided with the taper extruding shafts which are fitted ... | 07/19/1988 |
| 4750850 | Collet release mechanism for milling machine A collet attachment and release mechanism for a vertical milling machine includes a movable plate vertically supporting a pneumatic, hand-held, bidirectional, rotary impact wrench above the drive head of a drawbar. The movable plate is spring-biased to ke... | 06/14/1988 |
| 4748357 | Electromechanical apparatus for producing an axial force for actuating clamping devices An electromechanical apparatus for producing an axial force for the actuation of a clamping device, such as a chuck that rotates with the arbor of a machining tool. The apparatus includes an electric motor that has a stator and a rotor, with the relative ... | 05/31/1988 |
| 4745673 | Spindle head unit of a machining center A spindle head unit having a bell crank lever (24) mounted pivotally on a spindle head (10) of a machining center to depress a drawbar (18) inserted through a spindle (14) mounted on the spindle head (10). One of arms of the bell crank lever (24) is locat... | 05/24/1988 |
| 4746252 | Spindle of a machine tool A spindle of a machine tool is mounted for rotation about a longitudinal axis. The spindle comprises clamping means for clamping and releasing a tool. An energy accumulator is charged when the tool is not clamped and is at least partly discharged to tight... | 05/24/1988 |
| 4735532 | Spindle with positive lock drawbar A cutting tool holder wherein a cutting tool can be released from a drawbar by selectively causing the drawbar to move along a longitudinal axis in a first direction. The drawbar is positively locked in place to prevent such movement during the cutting op... | 04/05/1988 |
| 4734000 | Power drawbar wrench A power operated wrench for acuating the drawbars on machine tools, such as vertical spindle milling machines, which permits the operator to move a single handle, and after release of a safety interlock move a pneumatic wrench into position to engage the ... | 03/29/1988 |
| 4729700 | Drive unit for rotary tools A drive unit for a rotary tool, which unit includes a housing, a drive shaft mounted in the housing for transferring rotational drive force from a rotary drive to the tool, and a clamping mechanism mounted in the housing for generating a tool clamping mov... | 03/08/1988 |
| 4729701 | Automatic tool-replacing device mounted on milling machine It is a tool-replacing device to be mounted on a milling machine for automatically replacing a tool or locking a tool in place in a safe manner. The device mainly comprises a driving spindle, a motor, a reducing gear train, a transmission shaft, a sliding... | 03/08/1988 |
| 4726721 | Tool coupling For the attachment of a tool provided with a cylindrical or frusto-conical shank to a rotating machine spindle at one end of the machine spindle a complementary reception opening for the shank is provided. The shank contains a coaxial bore and a plurality... | 02/23/1988 |
| 4720221 | Machine tool with an angle spindle attachment In a cutting machine tool, a spindle head rotatably carries a vertical tool spindle, and an angle spindle attachment is detachably mounted on the lower surface of the spindle head. The angle spindle attachment carries an attachment spindle adapted to rece... | 01/19/1988 |
| 4714389 | Tool holder A tool holder (1) which can be inserted into the main spindle of a machine-tool is provided on the front region of its shank portion (2) with a cylindrical guide portion (11) for a tapered ring (12) which can be braced elastically and on the rear region o... | 12/22/1987 |
| 4710078 | Device for the internal deburring of a pipe A device for the internal deburring of a pipe or shaped tubular member, such as for removing the inwardly projecting portion of an axially extending seam, includes a support body elongated in the axial direction of the pipe. A cutting ring is clamped exte... | 12/01/1987 |
| 4708040 | Lock rod and apparatus for holding a toolholder A lock rod is provided extending along and reciprocally movable along an axis Y--Y and having a cylindrical cross section near one end. Two circumferentially spaced depressions are located in the cylindrical surface for receiving locking elements in an un... | 11/24/1987 |
| 4708547 | Safety tool-holder for machine-tools The present invention relates to a safety tool-holder for machine-tools, comprising: a quill in which is axially cut a through-opening, said quill being mounted in a body integral with the machine-tool; a rod placed in the axial opening of the quill, a first e... | 11/24/1987 |
| 4705440 | Tool holder for milling or boring machine The subject matter of the invention is a tool-clamping device, more particularly for milling and drilling machines, consisting of a clamping arrangement (5) with clamping tongues (6), arranged centrally and longitudinally displaceably in the tool spindle ... | 11/10/1987 |
| 4704056 | Tool-clamping device The subject of the invention is a device for clamping tools in the spindle of a machine tool, said device comprising a collet chuck located centrally in the spindle with clamping jaws at the forward end, a spring assembly to generate the necessary closing... | 11/03/1987 |
| 4692074 | Tool coupling arrangement for a tooling assembly A tool coupling arrangement is disclosed for a tooling assembly (10) adapted for automatic tool insertion into a spindle assembly (12), the tooling assembly (10) having an axially moveable element (20) for causing movement independently of the spindle ass... | 09/08/1987 |
| 4686794 | Stone guide for a superfinishing machine A stone guide for guiding the honing stone of a superfinishing machine. The stone guide receives a honing stone unit which comprises a honing stone and a honing stone holder. The honing stone holder defines a shoulder and a contact surface. The stone guid... | 08/18/1987 |
| 4684302 | Keeper for machine tools and the like The disclosure is of a spreadable keeper for use in the cooperative slots in a machine tool spindle and its associated shank or tang. In use, the slots are partly aligned crosswise of the spindle axis of rotation and the keeper is inserted in the slots an... | 08/04/1987 |
| 4680999 | Replaceable tool A replaceable tool is comprised of a tool holder forming a hole providing an engageable ditch on the insert end of the shank, a fitted hole for detachably fitting the shank of this tool holder therein and a sleeve providing a plurality of locking balls to... | 07/21/1987 |
| 4677719 | Tool holding device for lathes A tool carrier for lathes, in particular a tool turret, having a plurality of stations for holding tools, at least one of which is provided with a driven tool spindle designed as a hollow shaft and rotatably mounted in a housing. This tool spindle accommo... | 07/07/1987 |
| 4668137 | High-frequency motor incorporating tool drawing-up device therein This invention is characterized by that the high-frequency motor is adapted to provide the tapered surface engagements in both engaging parts between a draw bar set in a rotary shaft of the motor and a slit hook engaged with the draw bar, and between this... | 05/26/1987 |
| 4661029 | Quick disconnect collet assembly A quick disconnect coupling mechanism for a collet and collet tube facilitates connection and disconnection of the two members to and from one another. In a preferred form, the collet is provided with circumferentially spaced external threaded portions wh... | 04/28/1987 |
| 4656898 | Portable lathe device A portable lathe device is modular in character and can be employed for flange facing, line boring or other purposes. The spindle carrying the tool means is readily axially adjustable, and the radial feed rate for a facing head tool carrier is infinitely ... | 04/14/1987 |
| 4655631 | Quick change tool holder A quick change tool holder of the block tool type wherein a tool nose assembly is releasably secured to a drive member or holder. The tool nose includes a bayonet portion extending axially outward from the rear end thereof which is receivable by an axial ... | 04/07/1987 |
| 4651405 | Tool change apparatus A tool (12) is releasably supported on a head (10) by a kinematic support (35) having elements (36,37) provided respectively on the head (10) and the tool (12) and extending in a plane (A--A) transverse to an axis (10A) of the head (10) by a releasable co... | 03/24/1987 |
| 4643055 | Lathe spindle assembly A spindle assembly for a metal working lathe includes a generally cylindrical spindle body having a forward end and a rearward end and an internal bore extending longitudinally thereof. An arbor having a forward end connectable to a workpiece is insertabl... | 02/17/1987 |
| 4642006 | Tool mounting A tool mounting between a cutting tool, for example a drill, and a machine spindle, comprising a tool element and a tightening device. The tool element consists of a body and an expandable attachment tap. The attachment tap is formed with grooves to recei... | 02/10/1987 |
| 4640653 | Integral spring flexure for use with high speed rotating shafts This invention relates to high speed spindles employing a tool holding mechanism which rotates with the spindle. In machining applications utilizing high speed spindles which operate above 20,000 RPM, it is desired to manufacture such spindles so that the... | 02/03/1987 |
| 4632614 | Composite tool unit for chip-removing machining A composite tool unit comprising a tool shank, a tool head a chuck, a drawbar which is slidable in the longitudinal direction of the tool shank and a pulling shank which projects from the tool head. The drawbar and pulling shank are engaged around by the ... | 12/30/1986 |
| 4632613 | Spindle tool retention and ejection mechanism A mechanism for retaining tools in the spindle of a machine tool and for ejecting the tools for removal from the spindle. The mechanism is adapted to operate with standard cutting tool holders having a retention knob extending rearwardly and axially. The ... | 12/30/1986 |
| 4628586 | Tool clamping device for main spindle A tool clamping device for clamping a tool on a main spindle or releasing the same from the main spindle, which includes: a main spindle rotatably supported on a headstock; a push rod extended through the spindle hole of the main spindle so as to be axial... | 12/16/1986 |
| 4620824 | High-speed driving adapter for boring, milling and similar machine tools A high-speed driving adapter for boring, milling and similar machine tools has a gear housing fixedly connected to a spindle housing of the machine tool. The gear housing rotatably supports a drive shaft having a taper shank disposed in a conical receivin... | 11/04/1986 |
| 4617846 | Interchangeable tool head for a nc machine A tool for a nc machine is provided with a radially displaceable surface slide serving as a tool holder. The tool head is interchangeable by a tool head changing device mounted on the nc machine. The tool head is automatically releasably mounted on the wo... | 10/21/1986 |
| 4610075 | Tool holder for industrial robots A tool holder for an industrial robot intended to permit a programmed automatic replacement of tools. The holder and the tool are formed with connecting elements adapted to each other. The holder includes a cylinder housing, in which two pistons, intercon... | 09/09/1986 |
| 4610585 | Chuck for use with a cutting tool A chuck which can be clamped into a spindle of a machine tool and which is for use with a cutting tool having a shaft with a circular cross section. The chuck includes a body provided with a central bore having an end region in which the surface of the ce... | 09/09/1986 |
