...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7290649 | Roller arrangement for an accumulating roller conveyor The invention relates to a roller arrangement (7) for a stowing roller conveyor, comprising a stationary roller axle (20) arranged in a support frame (4) of the stowing roller conveyor, with a driving roller (9) and a conveying roller ( | 11/06/2007 |
| 7261201 | Chain-driving mechanism and conveyor apparatus A chain-driving mechanism and a conveyor apparatus of the present invention include a plurality of rollers (20) arranged to convey to-be-conveyed objects, a driving mechanism that drives the rollers (20) in conjunction with each other, and a motor (... | 08/28/2007 |
| 7014037 | Conveying device for conveying workpieces A conveying device for conveying workpieces, for example in a production line, the conveying device including at least one driving line divided into several sections, and each section being able to convey workpieces independently from other sections. At least one ce... | 03/21/2006 |
| 6502690 | Driving roll The invention pertains to a driving roll for a roller way or conveyor belt in which at least one roller base (102) is provided with a universal coupling device (106, 114), modular drive wheels (104) corresponding to the coupling device (106, 114) are form... | 01/07/2003 |
| 6086065 | Apparatus for feeding sheets from a sheet store An arrangement for feeding sheets from a sheet store to either one of a plurality of stations includes a movable carriage which receives sheets fed from the store and which has driving cogwheels for coaction with a fixed cog railway outside the carriage. ... | 07/11/2000 |
| 5762177 | Method and apparatus to convey flat products of different widths An improved conveyor is provided which has a plurality of rotatable shafts with a plurality of first disc rollers mounted on each of the shafts for rotation therewith. The first disc rollers are located at a first location on each of the shafts and are sp... | 06/09/1998 |
| 5168979 | Accumulation conveyor An accumulation conveyor including a number of conveyor sections with mutually drivingly connected transport rollers on which a load, for example, a pallet container, can be conveyed or supported, and which is driven by a common drive motor by a drive cha... | 12/08/1992 |
| 4951808 | Accumulating conveyor An accumulating conveyor is driven by a single, long drive shaft and a plurality of clutch shafts driven off of the drive shaft.... | 08/28/1990 |
| 4828103 | Conveyor drive unit and method for operation thereof An improved conveyor drive unit with a method of operation thereof, which can be rapidly and easily mounted on a roller-type conveyor system and which, when arranged in series, can be sequentially stopped and restarted relative to predetermined parameters... | 05/09/1989 |
| 4781283 | Accumulation conveyors In an accumulation conveyor comprising load-carrying rollers, a roller drive is so devised that all rollers under one and the same load at a time are either being positively driven by, or are disengaged from, the said drive. Mechanism controlling engageme... | 11/01/1988 |
| 4215775 | Roller conveyor for conveying and pressure-free accumulation of individual items A roller conveyor for conveying items and permitting such items to accumulate in a pressure-free manner, including supporting rollers each having an associated jacket and hub, intermediate rollers each equipped with a sprocket wheel and each forming a dri... | 08/05/1980 |
| 4172519 | Article accumulation conveyor An article accumulation conveyor in which the drive for moving the articles is automatically discontinued for a selected section of the conveyor when an article is stopped on another certain section of the conveyor and is started again automatically when ... | 10/30/1979 |
| 4121709 | Stow roller train arrangement A stow roller train arrangement which includes a plurality of rotatably mounted conveyor rollers extending transversely to the direction of conveyed articles with intermediate rollers being interposed between the conveyor rollers and the drive mechanism w... | 10/24/1978 |
| 4108303 | Power transmission assembly for an accumulator conveyor An accumulator conveyor of the type that includes a plurality of article accumulating zones extending between the infeed and discharge ends of the conveyor. In preferred form, each of the conveyor's zones includes at least one novel power transmission ass... | 08/22/1978 |