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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 |
| 7584704 | Assembly for aligning and interlocking an electro-monorail system and vertical lift station An assembly adapted for aiding the alignment of and interlocking a vertical lift station (VLS) rail and the main rail of an electro-monorail system (EMS), the assembly includes a locator pin, a pin receiver having tapered walls for funneling the pin towards an align... | 09/08/2009 |
| 5960911 | Elevator system having guide rollers An elevator system includes a guide roller having a contact surface and a flange that extends outward from the roller. A guide rail for the elevator system includes a cam that is disposed to engage the flange of the roller. During extended periods of non-... | 10/05/1999 |
| 5329077 | Elevator ride quality Rail learning is combined with feedback in a control for improving ride quality in an elevator. For example, a pre-stored signal indicative of a horizontal deviation of the rail's surface from a vertical reference is retrieved and used along with a sensed... | 07/12/1994 |
| 5312074 | Safety mechanism for track system This apparatus relates to a safety mechanism for a rail system having tracks adapted to be moved in an out of alignment for the transfer of an object from one track to the other. More specifically, the apparatus relates to a mechanism which prevents the a... | 05/17/1994 |
| 5297483 | Work conveyor Left side panels and right side panel are produced in a left side panel production line and a right side panel production line, respectively By vertical lifters, each left side panel and each right side panel are lifted at the delivery stations and then t... | 03/29/1994 |
| 5064331 | Vertical conveying apparatus A vertical conveying apparatus for vertically conveying an article between at least two horizontal surfaces having different vertical positions, includes a plurality of vertical tracks, vertical conveying trucks, horizontal conveying trucks, and coupling ... | 11/12/1991 |
| 5016541 | Greenhouse transport system A greenhouse transport system for moving plants and plant trays through a greenhouse comprising a cart including a carriage assembly having at least one roller extending upwardly from the cart, an overhead track assembly including at least one track chann... | 05/21/1991 |
| 4922829 | Variable height workstation and system A variable height workstation includes a trolley delivery apparatus for moving a rail section from a gap formed in a subsidiary loop rail to a workstation located remotely from the loop. A pivotal cam moves with the rail section and arrests travel of a tr... | 05/08/1990 |
| 4876965 | Device for the centering of a rail in elevator stations of electric overhead trolley conveyors The present invention refers to a device for the centering of a movable rail section relative to a stationary rail section of an overhead trolley conveyor, notably a lifting station of a trolley conveyor. There is at least one centering body attached to t... | 10/31/1989 |
| 4817533 | Transportation system of floated-carrier type A transportation system of a floated-carrier type according to the present invention has a guide rail cover extending in a longitudinal direction. The guide rail cover comprises a guide rail. A carrier is made to float, in a non-contact manner, from the g... | 04/04/1989 |
| 4807537 | Transport apparatus having vehicle removing mechanism A transport apparatus is provided with a track including a predetermined transport path. At least two runners travel on the transport path. The track includes a pair of first guide portions individually in rolling contact with first wheels of the runner o... | 02/28/1989 |
| 4111130 | Method of transferring passengers from vehicles to a station A station for a transport system comprising a track, an entry level, a transit level vertically spaced from the entry level and at which vehicles or trains may be stopped and two pairs of lifts arranged one pair on each side of the track, the lifts being ... | 09/05/1978 |
| 4004765 | Bridge accessory for track vehicles An accessory bridge for use with a model train set, a model car race set, or the like, wherein the vehicles traverse a path of travel defined by a specific track layout. Particularly, the bridge accessory is designed for use with a track layout having a c... | 01/25/1977 |
