Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7225688 | Nip width sensing system and method Devices for measuring a nip width between rolls of a press nip include one or more sensors adapted to be placed in the nip while the nip is stationary. The electrical resistance of each sensor corresponds to the size of the nip width, whereby a nip width or a nip wi... | 06/05/2007 |
| 4171008 | Apparatus for detecting malfunction on drawing of catch yarns in a shuttleless loom Catch yarns are drawn between a pair of rotatable members which are mounted to be movable toward and away from another and yieldably urged to come together. Detecting means detects the relative movement between the pair of rotatable members and produce an... | 10/16/1979 |
| 4049023 | Stop motion for narrow width needle looms A floating electrode is positioned in the nip between a pair of tape pull rollers on a needle loom for sensing the presence of excess yarn in the nip caused by improper winding of the tape on a take-up roll or a wrap around one of the pull rollers to an u... | 09/20/1977 |
