Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 4103917 | Skateboard truck A wheel housing is resiliently mounted on a skateboard truck base by means of a fastener which extends through the housing and is threaded onto a stud fixed to the base to compress a tubular cushion between the housing and the base. The fastener has a squ... | 08/01/1978 |
| 4067371 | Mechanically locking fastener A mechanically locking fastener has external threads for installation in the threaded bore of a workpiece. A lock ring has internal radial serrations locked in serrations of the fastener proper, and external radial teeth of a form for gripping the wall of... | 01/10/1978 |
| 4050494 | Anti-rotation lock for fastener bolt An improved lock washer locatable between the head of a fastener bolt and e work being fastened. The lock washer includes a retractable blade having a "hinged" connection with the main plate area of the washer. During thread-in operations the blade assume... | 09/27/1977 |
