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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7192224 | Drilling tool A double or multiple-edged drilling tool has a base body rotatable about a drilling axis, and at least two plate seats arranged on the front face for accommodating identical interchangeable cutting plates. The cutting plates each have a machining face, and a clearan... | 03/20/2007 |
| 7171758 | Tool setting apparatus for use in reconditioning of articulated connector An apparatus is disclosed for measuring the extension of a cutting tool from a boring bar used to semi-automatically recondition an articulated connector while it is still mounted to the end structure of a rail car. The apparatus is a generally c-shaped base member ... | 02/06/2007 |
| 7143490 | Tap process for hard workpieces A process and apparatus for producing screw threads in hard material workpieces with a series of taps. The present invention employs a threaded bore formed in a bracket assembly to align and position multiple taps on a rotary machine. The taps are used in sequence t... | 12/05/2006 |
| 7013775 | Center reference adjustable cutter holder for CNC lathe A cutter holder for CNC lathe is disclosed to include a bottom holder block, which is affixed to the frame of a CNC lathe with screws and has a positioning groove with a middle semispherical recess for holding a barrel that holds a tool shank with a front chuck for ... | 03/21/2006 |
| 6855099 | Manufacturing system for aircraft structures and other large structures A production system for manufacturing a workpiece comprises an index system including a plurality of index devices removably mounted on the workpiece at known longitudinally spaced locations therealong, and a longitudinally extending index member releasably engaged ... | 02/15/2005 |
| 5795113 | Optical unit for image projection and tool incorporating same An optical unit for projecting an image including first and second locating lines for substantially eliminating the introduction of visual parallax error. In one preferred form, the optical unit is incorporated into a machine for performing a forming oper... | 08/18/1998 |
| 4904130 | Cutting tools with depth indication A drill bit, circular saw blade, milling head or other cutting tool on which are disposed a repeating series of color coded marks spaced uniformly at small predetermined increments so that they can be seen and distinguished while the tool is in use and ca... | 02/27/1990 |
| 4886009 | Composite tool having wear indicator An indicator that provides information on the wear status of a composite tool that is subject to abrasion during use. The composite tool contains at least one wear groove in the area subject to abrasion. The wear groove has a desired length and predetermi... | 12/12/1989 |
| 4730958 | Overhead cambearing line boring tool A portable cambearing line boring tool for an internal combustion engine with an aluminum head or a cast iron block with aluminum caps and an overhead camshaft with non-replaceable bearings that are cast in as an integral part of the cylinder head which u... | 03/15/1988 |
| 4623286 | Boring bar and measuring device therefor A boring bar and associated measuring gage device, according to the invention, includes a gaging surface on the measuring gage device that is engagable with a gaging surface on the boring bar. By such engagement, a measuring surface on the measuring gage ... | 11/18/1986 |
| 4588339 | Tool holder for a cutting machine provided with numerical control A tool of a metal-cutting machine provided with numerical control has an information data carrier for storing various data of tool characteristics such as the length, diameter, service life and other parameters of the tool. The data carrier is formed by a... | 05/13/1986 |
| 4561776 | Electro-optical sensors for tool and robotic inspection An electro-optical sensor probe is removably mounted on a conventional machine tool, for example, at a location whereat a tool would normally be mounted, for sensing the condition of a workpiece. Signals received by the sensor probe can be conveyed to a c... | 12/31/1985 |
| 4437803 | Spindle squaring tool An instrument for aligning the spindle of a vertical milling machine perpendicular to the milling machine table or work surface. The instrument comprises a first right circular cylinder member that is coaxially attached to the machine spindle about a firs... | 03/20/1984 |
| 4338723 | Angle measuring device An angle measuring device for establishing a position of a frame member in two orthogonal planes or in an azimuth plane, relative to a reference plane, comprising a frame member supporting a plurality of equally radially and angularly spaced linear potent... | 07/13/1982 |
| 4317176 | Microcomputer controlled power tool A microcomputer controlled power tool including a semiconductor control device connected to the motor, one or more sensors, and a microcomputer interfaced to a keyboard and digital display for monitoring and controlling various operating conditions and pa... | 02/23/1982 |
| 4255056 | Pre-setter for positioning tooling on turrets An optical presetter for precision alignment of a tool on a machine turret to be positioned on a lathe or the like. The presetter includes a base support, a light source, an adjustable carriage, and a viewer with a reference. When a tool is mounted on a t... | 03/10/1981 |
| 3994614 | No dialing boring head, sizing blocks for standard sizes, shims and spacers with blocks for intermediate sizes, optional pin holes for quick change An improved boring head assembly that is designed for being easily and accurately adjusted to different standard sizes of boring diameters so that it can be accomplished by persons without having a great deal of skill; the device consisting of a spindle f... | 11/30/1976 |
| 3994613 | Device for positioning cutters in an annular cutter holder A device for setting cutters in the periphery of an annular cutter holder to a plurality of selected radii, said device including a base for rotatably supporting the cutter holder and an adjustable gauge mounted on said base which may be selectively posit... | 11/30/1976 |
| 3985463 | Automatic thread cutting device Simultaneous rotation and feed or withdrawal movements are imparted to a shaft carrying a screw tapping element in an automatic thread cutting apparatus by a rack and pinion drive on which is mounted a ramp-shaped cam, the rack and pinion, through a gear ... | 10/12/1976 |
