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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 |
| RE40349 | Device for cutting any width of wood or other materials A device for cutting wood or other materials comprises a saw blade clamping device for radially and/or axially fixing circular saw blades mounted axially displaceable on a drive shaft. Support bodies are provided axially displaceable on the drive shaft for each circ... | 06/03/2008 |
| 7204181 | Reversible floating punch retainer for punch change retainer tool A punch change retainer for positioning a floating punch in a retracted, disengage position and an extended, engage position. The change retainer includes a change retainer body and a punch retainer receiving aperture extending upwardly through the change retainer b... | 04/17/2007 |
| 7182010 | Apparatus and process for producing different hole patterns in sheet-shaped print materials The invention relates to a device for producing different hole patterns in sheet-shaped print materials. An apparatus and process for producing different hole patterns in a sheet-shaped print material is provided wherein a punch in a tool roller is raised and lowere... | 02/27/2007 |
| 7171885 | System for fixing rotary cutting dies in machines for die cutting laminar material System for fixing rotary die cutters in die cutting machines for cutting laminar material includes a fixing means between the die (1) and a die-holder surface or cylinder (2) around which the die (1) is arranged, wherein the a fixing element inc... | 02/06/2007 |
| 7028596 | Rotary cutting unit A circular-cutter unit for equipment cutting flat lengths of material and sheet metal in a horizontal plane has upper and a lower circular blades both in planes perpendicular to the horizontal plane and in a longitudinal direction, carried by an upper and lower blad... | 04/18/2006 |
| 7013778 | Tube cutting device A device for cutting slits in plastic tubes produces a plurality of cuts spaced around tubing passed through the device. The device comprises a plurality of rotatable members (3) located at different circumferential positions around a tube passage (2) ... | 03/21/2006 |
| 6918333 | Retainer device for a press punch Disclosed is a retainer device A for selectively changing the amount of projection of a punch 1 so that the punch projection amount is increased when the punch 1 is used for pressworking and, conversely the punch projection amount is decreased when the... | 07/19/2005 |
| 6715394 | Rotatable die A die that may be rotated relative to a die holder to form an opening in different types of envelopes, cardboard boxes or other type of blanks or webs is provided. The window opening in an envelope blank is formed by using a sheet of material having a top surface an... | 04/06/2004 |
| 6692424 | Rotary trimmer apparatus and method A rotary trimmer apparatus and signature trimming method are provided that enable operators to set a gap spacing between a rotating knife and an anvil at different predetermined sizes in an easy and accurate manner. The operator chooses the optimum knife/... | 02/17/2004 |
| 6418828 | Force-adjustable rotary apparatus for working webs or sheets of material Disclosed is a rotary apparatus suitable for processing and working a web or sheet of materials such as plastic films, non-woven substrates, metal foils, paper, diaper cores and the like. Such apparatus includes counter-rotating anvil and tool rolls throu... | 07/16/2002 |
| 6393956 | Device for cutting any width of wood or other materials A device for cutting wood or other materials comprises a saw blade clamping device for radially and/or axially fixing circular saw blades mounted axially displaceable on a drive shaft. Support bodies are provided axially displaceable on the drive shaft fo... | 05/28/2002 |
| 6382066 | Method and device for slitting a material web Method and a device for slitting a material web traveling in the run direction in which at least one knife unit with a cutting edge, and arranged on a carrier that is movable transversely to the run direction in a machine frame, is positioned. A measureme... | 05/07/2002 |
| 6370998 | Rotating-drum flying shear Upper and lower rotating drums (13, 14) having shearing blades (13a, 14a) are supported by a bearing frame (12) via eccentric sleeves (15, 16). Only the upper rotating drum (13) is rotated by a drive motor 17, while the eccentric sleeves (15, 16) are rota... | 04/16/2002 |
| 6327951 | Mounting arrangement for hard metal cutting blades in cutting heads In a mounting arrangement for mounting a hard metal cutting blade in a cutting head in a mounting groove of the cutting head in an adjustable radial position, wherein the cutting blade is disposed on a support plate and engaged by a clamping bolt. The sup... | 12/11/2001 |
| 6295909 | Shearing metal strip The invention is an apparatus for cutting metal sheet having two rotatable drums, wherein the metal sheet passes between the drums for cutting. Each of the drums has a cutting blade moved into and out of cutting position by an axial actuator rod. The cutt... | 10/02/2001 |
| 6202721 | Mounting arrangement for a cutting blade in a cutting head In a mounting arrangement for supporting, in a stepwise adjustable fashion, a cutting blade in a cutting head for working wood or plastic, the cutting blade has at least one cutting edge and opposite side edges with wave-like profile structures and claw e... | 03/20/2001 |
| 6161458 | Method and unit for processing sheet material A method and unit for processing sheet material, whereby the sheet material is processed between two rollers rotating about respective substantially parallel axes and cooperating mutually according to a given law of interaction depending on the spatial re... | 12/19/2000 |
| 6155151 | Cutter drum for web-cutting machine A cutter drum for a web-cutting machine has a body having a cylindrical outer surface centered on an axis and formed with at least one seat having a radially outwardly directed floor face extending axially and helically of the axis and a tangentially dire... | 12/05/2000 |
| 6058818 | Convertible pitch knife apparatus Rotary knife apparatus used in connection with a pouch form, fill and seal machine capable of handling a substantially wide range of pouch sizes or variations in pouch fills. The apparatus includes major and minor knife hubs cantilevered on respective sha... | 05/09/2000 |
| 6012372 | Adjustable arbor and cutting elements An adjustable arbor for maintaining one or more cutting elements which includes a shaft, one or more runners associated with the shaft and runner displacing pistons aligned with the runners and selectively displacing them to engage the cutting elements an... | 01/11/2000 |
| 5983766 | Steel rule cutting die with removable cutting units and method for using same A steel rule die for cutting cloth and synthetic materials. The cutting die includes a primary substrate and a plurality of cutting units that are removably attachable to the substrate in such a manner that they are easy to adjust, remove and replace. The... | 11/16/1999 |
| 5983764 | Cutting device A cutting device for transversely cutting a traveling web into signatures is usable to cut signatures into equal or unequal lengths and to accomplish proper register of the cuts. This is accomplished by supporting at least one cutter blade in a cutting cy... | 11/16/1999 |
| 5957020 | Method and apparatus for perforating corrugated tubing An apparatus for perforating corrugated tubing includes at least one pair of feeder-cutter wheels, each feeder-cutter wheel including a worm a helical threading disposed at an angle on the worm for intersecting corrugations of corrugated tubing, and a cut... | 09/28/1999 |
| 5950516 | Device for adjusting a cutting stick for a cutting cylinder of a rotary press Cutting bars positioned on the peripheral surface of a cutting cylinder are shiftable circumferentially toward or away from each other to vary the lengths of signatures being produced when the folding apparatus is switched between collection and no collec... | 09/14/1999 |
| 5904086 | Apparatus for cutting a high-speed strip A drum-type shear for cutting high-speed strip, especially hot strip, includes a blade that is movable radially into and out of a rotating blade drum from which it is extendable into a strip-cutting position at a desired cutting time. In order to provide ... | 05/18/1999 |
| 5893314 | Knife assembly for rotary cutting system A knife holder assembly for a rotary cutting machine includes a holder with a top portion and side portion each including an opening, and an adjusting member with a body portion and an extender. The extender is adapted to extend through the side portion o... | 04/13/1999 |
| 5890410 | Holding assembly for cutting blade A holding assembly for maintaining a blade in an operative position on a movable support, which holding assembly has an elongate housing assembly having a first wall with a first pressure applying surface facing transversely to the length of the elongate ... | 04/06/1999 |
| 5865083 | Holder unit for a rotary knife pair A knife holder unit combined with a rotary knife pair includes a frame composed of an upper frame part and a lower frame part; and an upper and a lower knife holder assembly supported in the upper and the lower frame part, respectively. Each knife holder ... | 02/02/1999 |
| 5857396 | Slitting machine A slitting machine includes a pair of parallel arbors structured to support a plurality of cutting knives. The arbors are mounted to a head stock and tail stock on the slitting machine. The head stock and tail stock each rotatably support eccentrics which... | 01/12/1999 |
| 5842399 | Journal-less rotary dies and stand A pair of rotary die cylinders each removably mountable in a die stand by a pair of opposed arbor assemblies each with a separate spindle journaled in a separate carrier block and having a nose drawable into engagement with complementary recesses in oppos... | 12/01/1998 |
| 5842401 | Hole punch mount for split rotary die punches A punch assembly is provided for a rotary forms press, for punching holes in a sheet of paper or other material as the material travels between punch and die assemblies. The punch assembly is of the split ring type, and has a hub to be carried on a punch ... | 12/01/1998 |
| 5839343 | Cutter bar for a cutting cylinder A cutter bar which is usable in a cutting cylinder to sever paper web trains utilizes spaced clamping strips, that contain spaced pressure strips, to sandwich a cutter blade. The pressure strips have pressure surfaces that extend out adjacent a cutter edg... | 11/24/1998 |
| 5771770 | Cutting cylinder with adjustable cutter bar A cutting cylinder for transversely cutting or perforating a material web running in a rotary press, preferably a printed web in a rotary printing press, has at least one displaceable cutter bar. The cutter bar, pressing a displacing surface provided at t... | 06/30/1998 |
| 5740714 | Rotary blade clamping assembly A blade clamping assembly for use with a rotary cylinder is designed to allow a quick change of a perforating blade, cutting blade or scoring blade. The assembly comprises an elongated retainer bar, an elongated backing plate and at least one compressive ... | 04/21/1998 |
| 5735184 | Powered tool positioner system A power operated tool positioner for moving a tool parallel to a tool-positioning axis has a first tool-contacting member movable parallel to the tool-positioning axis for exerting a first pushing force against the tool, and a second tool-contacting membe... | 04/07/1998 |
| 5724740 | Twin blade saw A portable twin blade saw having adjustment for depth of cut of both blades and adjustments to ensure the saw blades are coplanar and parallel to a straight edge. The twin blade saw comprises a slotted main base (12) with a frame base (14) pivotally attac... | 03/10/1998 |
| 5669278 | Knife holder for receiving a wedge-shaped microtome knife A knife holder for receiving wedge-shaped microtome knives, in particular regrindable hard metal or steel knives, has a base and upwardly open right and left clamping jaws for receiving the knife. The upwardly open configuration allows easier exchange of ... | 09/23/1997 |
| 5632189 | Saw shifting apparatus Saw apparatus including an elongate power-driven saw arbor and a circular saw-supporting collar encircling the arbor and axially slidable thereon. The collar is moved axially on the arbor to shift the position of the saw by an elongate compression-transmi... | 05/27/1997 |
| 5571250 | Cutting blade mounting arrangement for inserted blade cutting heads In a cutting blade mounting arrangement for inserted blade cutting heads a mounting plate for supporting a cutting blade at one side thereof has at its opposite side a tooth structure for firm engagement with the cutting head and the cutting blade has gro... | 11/05/1996 |
| 5551327 | Adjusting means for multi-blade cutting apparatus Multiple saw blades in a gang rip saw apparatus and like multi-blade cutting apparatus may be selectively adjusted to differing spacings from one another by mounting a threaded sleeve on the rotary arbor of the apparatus and mounting a plurality of electr... | 09/03/1996 |
