...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7361129 | Multi-axis automatic tool-changing system A multi-axis automatic tool-changing system for an automatic machining center which is disposed with a plurality of machining principal axes and a tool magazine. The tool magazine is disposed with a plurality of tool-changing positions located correspondingly to the... | 04/22/2008 |
| 7347807 | Machine tool and method for changing tools on this machine tool In the case of a machine tool which comprises at least one working spindle with a tool-holding fixture for tool holders carrying tools, and a tool changer with a gripper for the tool holders in order to transfer the tool holders between their magazine position, whic... | 03/25/2008 |
| 7338419 | Tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder A tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder. The tool coupler has a hollow shaft, a ring-shaped collar, and a gripper groove, in which gripper groove are disposed two diametrically opposi... | 03/04/2008 |
| 7264581 | Machining center with a relay tool exchange device A machining center includes a first column, a second column, a crossbeam mounted transversely on the first and the second columns, a tool magazine, an upper tool exchange device mounted on the crossbeam, a lower tool exchange device mounted on the tool magazine and ... | 09/04/2007 |
| 7250023 | Drill accessory A tool for a power drill allows fast and convenient loading and unloading of a screw bit, drill bit, or other implement. The user preferably loads the tool with the necessary implements which are then carried with the tool. Each received implement is movable from a ... | 07/31/2007 |
| 7229397 | Tool changing device for a machine tool and method for changing tools on a machine tool A tool changing device for a machine tool with at least one tool carrier is proposed, which comprises at least one transit station, into which a tool is introducable in an inward transit direction and is extractable in an outward transit direction, wherein, at the t... | 06/12/2007 |
| 7211033 | Machine tool A machine tool has at least one working spindle, in which a tool receptacle for tool holders is provided. Furthermore, there is a tool-changing arm with a gripper, for a tool holder in order to transfer this tool holder between its magazine position, which is spaced... | 05/01/2007 |
| 7115082 | Machine tool A machine tool has a working spindle in which a tool receptacle for tool holders is provided. Furthermore, there is at least one tool-changing arm with a gripper in which a tool holder is held in a peripheral alignment with respect to the gripper in order to transfe... | 10/03/2006 |
| 7063654 | Machining center Machining is possible in such a manner that an optional position of a workpiece is positioned just under a tool by rotation of a turn table in a C-axis direction and movement of a spindle on a Y-Z plane, so that a width of a main unit in a X-axis direction can be ma... | 06/20/2006 |
| 7047785 | Installation for processing metal bars with improved means for transferring the bars, and method provided thereby A transferring device usable in installations for cutting and/or bending metal bars, particularly bars intended for concrete reinforcement. The device comprises one or more gripping pliers movable along mutually orthogonal axes of an overhead traveling crane arrange... | 05/23/2006 |
| 6099448 | Knife picking device and knife receiving unit for a cutting center machine A knife picking device includes a base member which is connected to a linear guide frame. The linear guide frame is movably connected to a linear guide board in two perpendicular directions. A block is connected to the base member and a cylindrical member... | 08/08/2000 |
| 5908374 | Tool changer for machine tool A tool changer for a machine tool includes an arm support disposed between a spindle head and a tool magazine to be reciprocally moved along the spindle relative to the spindle, a pair of tool changing arms mounted for rocking motion on support shafts fur... | 06/01/1999 |
| 5637069 | Device for metal cutting A device for the cutting metal-machining of one of several workpieces clamped on pallets (WP) and held ready in a device for holding several such pallets (WP) with a control device for timed sequence control, the conveyance of the preselected pallet (WP) ... | 06/10/1997 |
| 5439434 | Automatic tool exchanger A simple and efficient tool exchanger device is presented. The device has a pair of swing arms (8, 9), and each swing arm is provided with a set of grippers (11, 12) for holding a tool bit. The positions of the swing arms (8, 9) are separated by 90 degree... | 08/08/1995 |
| 5131136 | Method of and equipment for exchanging tools of machine tool An equipment of a machine tool for exchanging one tool attached to a main spindle into the other tool in a tool pot by memorizing a relative location between a terminated position of the cross rail and an elevator position of the tool pot of the tool-pot ... | 07/21/1992 |
| 5093978 | Manipulator for tools and tool adapters A manipulator for material removing tools and their adapters, particularly in machine tools and matching centers, has a horizontal rail for a reciprocable carrier which supports an elongated vertical holder which is movable up and down and the lower end o... | 03/10/1992 |
| 4860429 | Automatic tool changing device A tool changing device for tool systems in which a tool head and a tool holder are connected with one another by means of an automatic clamping mechanism which includes an integrated clamping screw. The tool changing device includes a lifting carriage whi... | 08/29/1989 |
| 4773152 | Automatic tool changer A machine tool (1) includes a machine spindle (1b), a tool storage magazine (3, 103) having a plurality of pots (23, 123) for storing a plurality of tools (42, 142) and an automatic tool changer (5) for transferring tools (42, 142) between the tool storag... | 09/27/1988 |
| 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 |
| 4670965 | Automatic tool exchange apparatus In apparatus for exchanging tools between a tool magazine having a plurality of tool pots and the spindle of a machine tool, wherein the axes of the tool pots are perpendicular to the axis of the spindle, there are provided a tool exchange arm having tool... | 06/09/1987 |
| 4654957 | Flexible machining apparatus with single shank tool and multi-spindle tool head changing and operating capabilities The machining apparatus includes a machine tool having a primary spindle slide with a transversely extending tool head support rail member thereon which is aligned successively with a tool head load rail mechanism and unload rail mechanism on a side of th... | 04/07/1987 |
| 4631981 | Machine tool with two tool changers A machine tool having a tool spindle rotatable about a horizontal axis provided with first and second tool magazines and first and second tool transfer devices. The first tool magazine removably stores a plurality of small diameter tools, with the axes of... | 12/30/1986 |
| 4602901 | Milling-boring machine A milling-boring machine is described which allows various types of operations to be carried out on a workpiece of medium-large size so as to allow its complete working in a single location. The machine includes a pillar, a slide movable vertically along ... | 07/29/1986 |
| 4575918 | Tool change mechanism A tool changer for interchanging tools between a machine tool and a magazine in a minimum amount of time so as to reduce the down time of a machine tool. The tool changer includes a frame or base member for mounting on the machine tool with the frame memb... | 03/18/1986 |
| 4558506 | 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... | 12/17/1985 |
| 4546532 | Automatic tool changing apparatus To effect the automatic changing of tools rapidly and provide a large number of tool pots with a small space in an automatically controlled machine tool, an automatic tool changing apparatus is positioned between the magazine proper and the spindle axis a... | 10/15/1985 |
| 4344220 | Tool exchange apparatus for boring mills and method for exchanging tools An improved tool exchange apparatus for milling machines with sliding carriages comprising a magazine and a pincer-arm for conveyance. The magazine is disposed so that the tools are presented with horizontal axis at an exchange station, the pincer-arm is rotat... | 08/17/1982 |
| 4343077 | Automatic tool exchanging apparatus of machine tool An automatic tool exchanging apparatus of a machine tool comprises a machine body, a tool storage magazine, a spindle attached to the machine body, a tool conveying mechanism and a tool exchanging mechanism which are located between the tool storage magaz... | 08/10/1982 |
| 4240194 | Automatic tooling machine An automatic tooling machine includes a spindle carrier having a spindle for supporting a machining tool. The spindle carrier includes a tool drum mounting device for rotatably supporting a tool drum having plural machining tools thereon. A device is prov... | 12/23/1980 |
| 4238034 | Automatic tool changer for machine tool A tool storage drum which is adapted to receive and store a plurality of toolholders is rotatably mounted on top of the upright of a horizontal machining center behind the spindle thereof. A tool changer carriage carrying a tool change arm is pivotally mo... | 12/09/1980 |
| 4190947 | Automatic tool exchanging apparatus of machine tool An automatic tool exchanging apparatus of a machine tool in which a new tool having heavy weight such as 60-100 kg are conveyed with its shank downwardly directed and readily and safely exchanged with a used tool. The apparatus comprises a tool storing ma... | 03/04/1980 |
| 4182021 | Tool magazine with a tool removal device A tool magazine is provided wherein an endless chain carrying a plurality of tool sockets is guided on a magazine frame and is indexable to present to a removal station one of the tool sockets receiving a desired tool. An operating arm mechanism carrying ... | 01/08/1980 |
| 4177550 | Machine tool with hollow structural steel members The bed and upright of a machine tool are made of structural steel tubes which are welded together to form unitary structures. Each of the structural steel tubes is substantially rectangular in cross-sectional shape.... | 12/11/1979 |
| 4164810 | Automatic tool changer for machine tool A tool storage drum which is adapted to receive and store a plurality of toolholders is rotatably mounted on top of the upright of a horizontal machining center behind the spindle thereof. A tool changer carriage carrying a tool change arm is pivotally mo... | 08/21/1979 |
| 4126233 | Tool transfer mechanism for machine tools A tool transfer arm is pivotally mounted on a tool transfer housing which is movable between a tool storage magazine and the spindle of a machine tool to transfer tools between the tool storage magazine and the spindle. The tool transfer arm has two pair ... | 11/21/1978 |
| 4012830 | Tool changer for horizontal drilling-milling machines A tool change mechanism for horizontal drilling-milling machines comprising a magazine, a tool spindle, the tools being arranged substantially horizontally and at right-angles to the tool spindle in the magazine. A gripper rocker having a gripper rocker s... | 03/22/1977 |