Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8146219 | Portable renewable energy box system A small, easily transportable wind turbine system has a square rail base secured to the ground by stakes and by its own weight. Slanted vertical legs connect a smaller square upper support perimeter to the base. A three-section telescoping mast is attached to the ba... | 04/03/2012 |
| 7354227 | Apparatus and method for manufacturing plastic frameworks such as window frames A production line for carrying out machining and cleaning operations on rectangular frameworks, is provided. Elongate plastic frame members are welded together in a welding machine, thereby forming two rectangular frameworks located one above the other. These are mo... | 04/08/2008 |
| 7179056 | Wind energy installation comprising a concentric gearbox generator arrangement A wind energy plant comprising a rotor, a rotor shaft, a gear, and a generator, the generator embodied as a ring concentrically embracing the gear. ... | 02/20/2007 |
| 7171735 | Shape member manufacturing apparatus and shape member manufacturing method The invention provides a shape member manufacturing apparatus and a shape member manufacturing method which aims at cutting and grinding a joint projection 8B formed when a plurality of shape members are joined together by welding or friction stir welding, in... | 02/06/2007 |
| 6854168 | Method and apparatus for forming openings in polymeric tubing In a method and apparatus for perforating multiwall polymeric cylindrical tubing, a drill head is slidably mounted for reciprocating movement on a support frame between inlet and outlet stations, the drill head having at least one drill for forming an opening in the... | 02/15/2005 |
| 6438813 | Rotary drive with a speed A rotary drive adapted to perform a speed of rotation switching of a tool holding device, comprising an output drive shaft bearing the tool holding device, said output drive shaft being able to be moved into first and second axial positions by means of a ... | 08/27/2002 |
| 6412156 | Multi-spindle machine tool In a multiple spindle processing unit which can change processing locations of a work in accordance with a modification made to the work, the present invention is intended to facilitate changes of design corresponding to the modification made to the work ... | 07/02/2002 |
| 5778504 | Automatic lathe having independently movable gang tool posts An automatic lathe includes a pair of gang tool posts disposed on opposite sides of a headstock. The headstock has a main spindle and is movable axially of the main spindle, and the pair of gang tool posts are independently movable in respective two direc... | 07/14/1998 |
| 5720090 | Machining apparatus with modular machine tools A machining apparatus is disclosed which includes a rotatable tool turret having a plurality of modular machine tools removably supported thereon in circumferentially spaced apart relationship, a transmission assembly for effectuating the indexed rotation... | 02/24/1998 |
| 5564171 | Automatic lathe with gang tool posts including offset work tools to prevent interference An automatic lathe includes a pair of gang tool posts disposed on opposite sides of a headstock. The headstock has a main spindle and is movable axially of the main spindle, and the pair of gang tool posts are independently movable in respective two direc... | 10/15/1996 |
| 5471724 | Toolhead assembly for machine tools A toolhead assembly for a machine tool generally consisting of a housing supportable on the machine tool and having at least one elongated bore therein, a liner formed of a structural polymer material disposed in the bore, adhesively secured to the housin... | 12/05/1995 |
| 5253400 | Motorized guide for grouting and sawing window sashes Horizontal motorized drive rods in an upright rectangular frame control the movement of vertical guide rods in the X direction of the frame. Motorized guide rods move a router on a movable mount along the Y direction. A plungeable router, spring-mounted o... | 10/19/1993 |
| 5207134 | Automatic precision lathe An automatic precision lathe is provided with a rotating main spindle movable in its axial directions, a slide movable in directions perpendicular to the axial directions of the main spindle, and a first subspindle and a second subspindle provided on the ... | 05/04/1993 |
| 4847960 | Tool turret Tool turret for NC automatic lathes comprising a turret body, in which a plurality of tool drive shafts arranged about a turret indexing axis are rotatably mounted, and comprising a main drive shaft coaxial to the turret indexing axis and in drive connect... | 07/18/1989 |
| 4833764 | Machine tool for machining workpieces by means of rotary tools A program-controlled machine tool is described, for machining workpieces by means of rotary tools which can be brought into engagement with a workpiece under timewise control. The workpiece is disposed on a cross table which rests on a program-controlled ... | 05/30/1989 |
| 4704773 | Machine tool structure The structure comprises a rotary conventional lathe work piece holding spindle, mounted for sliding on vertical guides and a tool holding assembly mounted for sliding along two perpendicular horizontal axes. The tool holding assembly receives fixed tools ... | 11/10/1987 |
| 4041588 | Machine tool provided with a tool magazine A machine tool having a tool magazine containing a plurality of tools which can be conveyed into a working or reference position by movement of the tool magazine. The tools are disposed in the magazine in the form of a matrix having rows and columns. The ... | 08/16/1977 |
