...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 |
| 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 |
| 7153252 | Storage arrangement for machine tools A storage arrangement (1) for machine tools is proposed, comprising at least two storage shelves (12) arranged vertically one above the other and in each case having a multiplicity of tool or workpiece retainers (14), the tool or workpiece retai... | 12/26/2006 |
| 6949055 | Machine tool A machine tool consists in a pair of slide ways set apart one from another and extending parallel with a longitudinal axis, a machining station between the slide ways, presenting a first zone and a second zone adjacent one to the other, and a traveling gantry set in... | 09/27/2005 |
| 6464623 | Tool storage and tool exchange device of a machining machine-tool and operating process of such a device A tool storage and tool exchange device of a high speed machining machine-tool having a horizontal ram that receives a tool. The exchange device includes a tool storage module that has a multiplicity of housings receiving the tools, a handling module that... | 10/15/2002 |
| 6454684 | Automatic tool changing apparatus Disclosed is an automatic tool changing apparatus which comprises a tool magazine storing a multiplicity of tools each held by tool holding means, the tool magazine having a tool port through which the tools are loaded into or unloaded from the tool magaz... | 09/24/2002 |
| 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 |
| 6071220 | Tool change device and tool change method In the tool change device, a tool change arm 27 for changing a tool 25 with respect to a main spindle 24, a main tool magazine 29 including a plurality of hold grooves 30 arranged linearly for holding the tools 25, and a tool storage member 41 including a... | 06/06/2000 |
| 5885200 | Tool change device In the tool change device, a tool change arm 27 for changing a tool 25 with respect to a main spindle 24, a main tool magazine 29 including a plurality of hold grooves 30 arranged linearly for holding the tools 25, and a tool storage member 41 including a... | 03/23/1999 |
| 5871426 | Machining center A machining center has a tool change device provided above a horizontally mobile column that has a main spindle for holding a tool. A circular tool magazine for carrying a plurality of tools in a horizontal attitude is provided on a support base which is ... | 02/16/1999 |
| 5871427 | Machine tool The machine tool comprises a machine stand (10) with a vertically movable vertical carrier (12) carrying a spindle head (SK1) for treatment of a workpiece. To exchange the spindle head (SK1) against a new spindle head (SK2), an exchange unit (15) is provi... | 02/16/1999 |
| 5453068 | Machine tool A machine tool comprises a tool exchanger for exchanging tools between a vertical-axis spindle and a load/unload position of a tool magazine. The load/unload position is located, in a front view of the machine tool, above the spindle and laterally offset ... | 09/26/1995 |
| 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 |
| 5169373 | Tool storage apparatus The tool storage apparatus according to the present invention includes holder units consisted by a strut and a multiplicity of holders adapted to hold tools. Holders are arranged in two rows and in each row, the holders are arranged one above another and ... | 12/08/1992 |
| 5081763 | Automated drilling station An automated drilling station for use in a computer controlled manufacturing system comprising an adjustable frame structure for releasably clamping a work piece in a planar work position, a chuck assembly adapted to operatively receive a selected drill b... | 01/21/1992 |
| 4932118 | Machine tool A machine tool comprises a spindle stock (12), a tool magazine (20) in which a plurality of grippers equipped with tool holders are arranged to travel along an endless track, and two gripper arms (25, 26; 28, 29) arranged for moving the tool holders betwe... | 06/12/1990 |
| 4890969 | Flexible manufacturing apparatus having several parallel, spaced-apart processing machines A flexible manufacturing apparatus having several parallel, spaced-apart processing machines several shelf-like magazines disposed at the rear of the processing machines and extending transverse thereto, and transport mechanisms for conveying tools from t... | 01/02/1990 |
| 4713876 | Machine tool with gang head interchange device A compact machine tool for automatically interchanging two gang heads mounted at the front end of a machining unit. The machine tool includes a horizontally movable tool support, a revolving body mounted above the tool support and rotatable about a first ... | 12/22/1987 |
| 4642875 | Machine tool with a headstock The machine tool exhibits a magazine and a tool changing device with two interconnected swivel-mounted transfer arms for tool changing. The magazine is disposed outside the range of the transfer arms on the side of an upright supporting the headstock, sai... | 02/17/1987 |
| 4622734 | Apparatus for the variable machining of workpieces An apparatus for the variable machining of workpieces is described which consists of a central module, which is constructed as a hollow carrier unit and which takes over the functions of the machine housing, and also of a plurality of horizontal and verti... | 11/18/1986 |