An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7290339 | Cutting apparatus for easily opening plastic packaging A cutting apparatus for easily opening plastic packaging comprises: first support member 100, second support member 200, first shaft 400, second shaft 401, third shaft 402, first cutting wheel 300, second cutting wheel 30... | 11/06/2007 |
| 7228631 | Contouring shave The invention is directed to a hand tool for cutting shavings from the surface of a workpiece of wood (or other workable material) to shape and make smooth any three-dimensional surface having concave, flat, and/or convex contours. The thickness of the shavings is m... | 06/12/2007 |
| 7182557 | Rail grooming machine and method of use An apparatus having a mounting body, a support having a first end and a second end. The first end of the support being pivotally secured to the mounting body for pivotal movement about a substantially horizontal primary pivot axis. A rail grooming head mounted to th... | 02/27/2007 |
| 7175376 | Method of cutting long-sized hardened steel material and cutting device The present invention mainly aims to provide cutting method and cutting apparatus for manufacturing a guide rail of a rolling guide device by efficiently cut-working a long scale hardened steel. In order to achieve such object, there is provided a cutting method of ... | 02/13/2007 |
| 6988861 | Method and apparatus for cutting long scale hardened steel The present invention mainly aims to provide cutting method and cutting apparatus for manufacturing a guide rail of a rolling guide device by efficiently cut-working a long scale hardened steel. In order to achieve such object, there is provided a cutting method of ... | 01/24/2006 |
| 6106204 | Apparatus for forming the edge of an airfoil An apparatus 28 for forming at least a portion of the edge 12,14 of airfoil 10 using a tool assembly 68 is disclosed. The tool assembly has a tool 164 with a cutting face 202 having a shape which is like the shape of the finished edge of the airfoil. Vari... | 08/22/2000 |
| 5549505 | Installation for the reprofiling of tracks carried out on a railway line The reprofiling installation includes, arranged below a railway carriage, a milling device consisting of two frames (8, 9) linked together. These frames (8, 9) of differing lengths and guided by the track, carry each a milling unit (22, 24). The installat... | 08/27/1996 |
| 5211517 | Machine for making microgrooves in snow skis This invention describes a machine for the manufacture of small grooves in metal edge inserts typically found on the undersurface of snow skis. The machine produces ice-cutting blades by cutting grooves of approximate uniform depth a constant distance fro... | 05/18/1993 |
| 5050291 | Universal tool A machine tool is provided having a wide range of applications and uses in metal or other material fabrication. Such machine tool may be utilized on reactor flanges, pipes, and other equipment. The machine tool is pneumatically actuated and may include a ... | 09/24/1991 |
| 5018917 | Apparatus for grooving the barrel of a plasticating machine A method and apparatus for cutting grooves onto the interior surface of the barrel of a plasticating machine in order to increase the friction against sliding unmelted resin particles. The helical screw is removed from the barrel without removing the barr... | 05/28/1991 |
| 4583893 | Reprofiling device for rails through continuous milling The device comprises a support member (8) linearly displaceable with respect to a fixed or movable rail (1). The support member (8) comprises a milling tool (5), cutting depth reference guides (6) for the tool bearing on the top face of the rolling surfac... | 04/22/1986 |
| 4583895 | Mobile machine for removing surface irregularities from a rail head of a railroad track Rail heads are planed with a mobile machine moving continuously along a track and comprising a frame and a rail planing tool mounting linked to the frame. The mounting is adjusted vertically relative to the running surface of the rail head and pressed the... | 04/22/1986 |
| 4534689 | Mobile rail contouring machine A mobile rail contouring machine is arranged for continuously removing such unning surface irregularities as ripples, corrugations and overflow metal from rail heads during the continuous movement of the machine along a railroad track. The machine comprise... | 08/13/1985 |
| 4461604 | Mobile machine for removing surface irregularities from rail heads A mobile rail head planing machine comprises a pair of tool carriers vertically adjustably mounted on a machine frame, respective ones of the carriers being associated with a respective track rail. Each tool carrier carries a metal shearing tool engaging ... | 07/24/1984 |
| 4396323 | Mobile rail contouring machine A mobile rail contouring machine is arranged for continuously milling such running surface irregularities as ripples, corrugations and overflow metal from rail heads during the continuous movement of the machine along a railroad track. The machine compris... | 08/02/1983 |
| 4384621 | Device for beveling a workpiece edge A device for cutting an edge of a workpiece comprising, a drive head having a carrier, a support bracket connected to the drive head for fixing the drive head with respect to the working piece edge, a tool holder reciprocately movable in and by the drive ... | 05/24/1983 |
| 4372714 | Method and mobile machine for removing surface irregularities from a rail head of a railroad track Rail heads are planed with a mobile machine moving continuously along a track and comprising a frame and a rail planing tool mounting linked to the frame. The mounting is adjusted vertically relative to the running surface of the rail head and pressed the... | 02/08/1983 |
| 4365918 | Mobile rail contouring machine Rail heads are contoured with a mobile machine moving continuously along a track and comprising a frame and a rail contouring tool mounting linked to the frame. The mounting is adjusted vertically relative to the running surface of the rail head and press... | 12/28/1982 |
| 4361061 | Machine tool for dressing the end face of an engine cylinder liner For machine dressing or grinding the end face of an engine cylinder liner particularly a heavy liner of the kind used in marine diesel engines, without removing the liner from its cylinder, a machine tool comprises a base which is locatable in the bore of... | 11/30/1982 |
| 4309846 | Mobile machine for removing surface irregularities from rail heads A mobile machine for removing surface irregularities from the faces of rail heads comprises a machine frame, at least one pair of tool carriers transversely aligned with respect to the track and a respective one of the tool carriers being associated with ... | 01/12/1982 |
| 4295764 | Mobile machine for removing surface irregularities from rail heads A mobile machine mounted on a track for advancement therealong for removing irregularities from the surfaces of the rail heads comprises a machine frame, a tool carrier vertically adjustably mounted on the machine frame and arranged thereon for guidance a... | 10/20/1981 |
| 4294041 | Mobile machines for removing surface irregularities from rail heads A mobile machine mounted on a track for advancement therealong for removing irregularities from the surfaces of the rail heads comprises a machine frame, a tool carrier vertically adjustably mounted on the machine frame and arranged thereon for guidance a... | 10/13/1981 |
| 4284377 | Portable key seat cutter The key seat slotter has a shank on which a pulley is adapted to be clamped. A broaching blade is slidable in a groove on the shank through the bore of the pulley. The key seat is cut in the pulley bore by manually pivoting a handle to effect repeated str... | 08/18/1981 |
| 4269552 | Apparatus for removing a welding bulge from resistance welded pipes A welding bulge removing apparatus comprises a ring-shaped carrier adapted to be placed by means of rollers on welded pipes at the weld bulge, and being provided with a circumferential guideway and gear rim. It also comprises motor-operated carriages each... | 05/26/1981 |
| 4244668 | Apparatus for forming internal teeth at large workpieces at a gear shaper An apparatus for forming internal gear teeth at large workpieces at a gear shaper or gear shaping machine comprising a machine bed at which there are arranged a workpiece table for chucking a workpiece and an upright or stand. The workpiece table and the ... | 01/13/1981 |