This compact device, known as a cam or spring-loaded camming device (SLCD), can be a lifesaver for climbers. Rock climbing is a high-risk sport where even a small error can lead to serious injury or worse. This particular type of retractable mechanical cam is designed to protect climbers in wide rock cracks, where traditional cams may not work effectively. It features a spring-loaded telescopic rod that expands slowly when the activation button is pressed, allowing it to fill the gap securely. O

Introducing the Rockler Spring-Loaded One-Handed Bar Clamp! Other clamps simply can't compare. | Rockler Woodworking and Hardware

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The Railroad Chef Who Invented the Fishing Reel Meet George Cook—a Louisville, Kentucky railroad chef who revolutionized fishing in 1899 with his "Automatic Fishing Device." While working on the Louisville and Nashville Railroad's private dining car, Cook invented an automatic fishing reel with a spring-loaded mechanism and alarm gong that changed sport fishing forever. His two U.S. patents (No. 625,829 and No. 657,518) laid the groundwork for modern fishing reels, yet his name remains virtually