Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 4646799 | Wood splitting device A wood splitting device which is characterized by a cylindrical housing, a wedge-shaped blade slidably disposed in the housing, a cap closing the housing at the top and enclosing a receiver having one or more cartridge apertures communicating with the int... | 03/03/1987 |
| 4479524 | Log splitting blasting wedge and anchor system improvements A log splitting method and apparatus includes placing a charge of blasting powder in a log splitting blasting wedge, axially driving the wedge into one end of a log to be split, adjusting the height of a wedge receiving sleeve on the tower of an anchor st... | 10/30/1984 |
| 4366847 | Log splitter A log splitter which utilizes as the prime mover a one-cylinder internal combustion engine. The engine is a two-cycle engine, with the fuel-air mixture being manually supplied to the engine by way of a charging unit. The internal combustion engine is of a... | 01/04/1983 |
| 4366842 | Flanged hose and method of making A large diameter suction and discharge hose capable of withstanding compressive end loads is formed of reinforced elastomeric material and includes a fitting at each end comprising a flange butt connected to a cylindrical nipple. The nipple includes an ar... | 01/04/1983 |
| 4351376 | Log splitting blasting wedge and anchor system An apparatus for supporting a blasting wedge relative to a log to be split includes an elongated base frame having forwardly extended tines onto which one end of a log is rolled. A charged blasting wedge is removably supported on a carriage structure whic... | 09/28/1982 |
