Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 6572119 | Axial chuck A clamping sleeve/tensioning device comprises a clamping sleeve that is positioned inside a conical centering opening of a housing body. A chucking mechanism with rotational body is used to tighten or release the clamping sleeve. The rotational body is pr... | 06/03/2003 |
| 5340128 | Wear-resistant chuck for driving hard-shank bits A chuck for driving drill bits an the like having shafts of hardened steel is provided with clamping jaws which at least at their clamping surfaces have a coating of diamond dust, so that they will have a resistance to abrasion that is greater than that o... | 08/23/1994 |
