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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 5762712 | Sprinkling device for metered application of super absorbing swelling substances A sprinkling device for applying powdery to granulated materials, particularly super-absorbing swelling substances (SAP-material) to a continuously moving material web in the manufacture of suction cores for sanitary napkins, disposable diapers, etc. The ... | 06/09/1998 |
| 5588521 | Method and apparatus for material handling A material handling system is provided having a plurality of separately actuatable flow gates disposed between the storage bin and the unloading conveyor which are sequentially opened and closed by a sliding zipper-type cam member to carefully control the... | 12/31/1996 |
| 4702367 | Loading device for a belt conveyor A feed conveyor delivers bulk material which is transferred to a belt conveyor by a loading device. The loading device consists of a feed screw in a feed screw casing and imparts to the bulk material a motional component in the direction of travel of the ... | 10/27/1987 |
| 4163489 | Feeder apparatus for fibrous materials Feeder apparatus in which bulk material, in fibrous or stringy form, is delivered onto an endless belt by means of a rotating rake. The weight of the material on the belt is sensed by a transducer which effects the operation of a control system for automa... | 08/07/1979 |
| 4068755 | Wet belt conveyor A conveyor for use in hydraulic mining operations to convey a slurry of water and heavy mined aggregate under conditions where the grade is insufficient to effectively accommodate gravity flow. The conveyor comprises a flume trough having a generally flat... | 01/17/1978 |
| 4057153 | Silo center discharge mechanism A center discharge mechanism is provided for a silo bottom unloader, wherein an auger sweeps across the floor of the silo while rotating, and conveys silage toward a generally central discharge opening, for conveyance of silage to a zone disposed beneath ... | 11/08/1977 |
| 4043444 | Cup accumulator assembly An improved accumulator and storage device for metal containers provided with open and closed ends, wherein one of the major wall areas of the accumulator and storage device is of acoustical construction and wherein the containers are deposited in the acc... | 08/23/1977 |
